From cd608140992163fabbc6fcbfedc7c1f280f156af Mon Sep 17 00:00:00 2001
From: PhantomX
Date: Thu, 15 Oct 2015 13:01:16 +0300
Subject: [PATCH] 1. move the non-minified compiled JS file to the /debug/
directory 2. Corrected dependency for "marked"
---
debug/simplemde.css | 647 ++
debug/simplemde.debug.js | 14028 +++++++++++++++++++++++++++++++++++++
debug/simplemde.js | 14024 ++++++++++++++++++++++++++++++++++++
dist/simplemde.min.css | 7 +
dist/simplemde.min.js | 14 +
gulpfile.js | 10 +-
src/js/simplemde.js | 13 +-
7 files changed, 28732 insertions(+), 11 deletions(-)
create mode 100644 debug/simplemde.css
create mode 100644 debug/simplemde.debug.js
create mode 100644 debug/simplemde.js
create mode 100644 dist/simplemde.min.css
create mode 100644 dist/simplemde.min.js
diff --git a/debug/simplemde.css b/debug/simplemde.css
new file mode 100644
index 0000000..6c2570a
--- /dev/null
+++ b/debug/simplemde.css
@@ -0,0 +1,647 @@
+/* BASICS */
+
+.CodeMirror {
+ /* Set height, width, borders, and global font properties here */
+ font-family: monospace;
+ height: 300px;
+ color: black;
+}
+
+/* PADDING */
+
+.CodeMirror-lines {
+ padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre {
+ padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+ background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+
+.CodeMirror-gutters {
+ border-right: 1px solid #ddd;
+ background-color: #f7f7f7;
+ white-space: nowrap;
+}
+.CodeMirror-linenumbers {}
+.CodeMirror-linenumber {
+ padding: 0 3px 0 5px;
+ min-width: 20px;
+ text-align: right;
+ color: #999;
+ white-space: nowrap;
+}
+
+.CodeMirror-guttermarker { color: black; }
+.CodeMirror-guttermarker-subtle { color: #999; }
+
+/* CURSOR */
+
+.CodeMirror-cursor {
+ border-left: 1px solid black;
+ border-right: none;
+ width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+ border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+ width: auto;
+ border: 0;
+ background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+ z-index: 1;
+}
+
+.cm-animate-fat-cursor {
+ width: auto;
+ border: 0;
+ -webkit-animation: blink 1.06s steps(1) infinite;
+ -moz-animation: blink 1.06s steps(1) infinite;
+ animation: blink 1.06s steps(1) infinite;
+ background-color: #7e7;
+}
+@-moz-keyframes blink {
+ 0% {}
+ 50% { background-color: transparent; }
+ 100% {}
+}
+@-webkit-keyframes blink {
+ 0% {}
+ 50% { background-color: transparent; }
+ 100% {}
+}
+@keyframes blink {
+ 0% {}
+ 50% { background-color: transparent; }
+ 100% {}
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {}
+
+.cm-tab { display: inline-block; text-decoration: inherit; }
+
+.CodeMirror-ruler {
+ border-left: 1px solid #ccc;
+ position: absolute;
+}
+
+/* DEFAULT THEME */
+
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
+.cm-em {font-style: italic;}
+.cm-link {text-decoration: underline;}
+.cm-strikethrough {text-decoration: line-through;}
+
+.cm-s-default .cm-keyword {color: #708;}
+.cm-s-default .cm-atom {color: #219;}
+.cm-s-default .cm-number {color: #164;}
+.cm-s-default .cm-def {color: #00f;}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {}
+.cm-s-default .cm-variable-2 {color: #05a;}
+.cm-s-default .cm-variable-3 {color: #085;}
+.cm-s-default .cm-comment {color: #a50;}
+.cm-s-default .cm-string {color: #a11;}
+.cm-s-default .cm-string-2 {color: #f50;}
+.cm-s-default .cm-meta {color: #555;}
+.cm-s-default .cm-qualifier {color: #555;}
+.cm-s-default .cm-builtin {color: #30a;}
+.cm-s-default .cm-bracket {color: #997;}
+.cm-s-default .cm-tag {color: #170;}
+.cm-s-default .cm-attribute {color: #00c;}
+.cm-s-default .cm-hr {color: #999;}
+.cm-s-default .cm-link {color: #00c;}
+
+.cm-s-default .cm-error {color: #f00;}
+.cm-invalidchar {color: #f00;}
+
+.CodeMirror-composing { border-bottom: 2px solid; }
+
+/* Default styles for common addons */
+
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
+.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
+.CodeMirror-activeline-background {background: #e8f2ff;}
+
+/* STOP */
+
+/* The rest of this file contains styles related to the mechanics of
+ the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+ position: relative;
+ overflow: hidden;
+ background: white;
+}
+
+.CodeMirror-scroll {
+ overflow: scroll !important; /* Things will break if this is overridden */
+ /* 30px is the magic margin used to hide the element's real scrollbars */
+ /* See overflow: hidden in .CodeMirror */
+ margin-bottom: -30px; margin-right: -30px;
+ padding-bottom: 30px;
+ height: 100%;
+ outline: none; /* Prevent dragging from highlighting the element */
+ position: relative;
+}
+.CodeMirror-sizer {
+ position: relative;
+ border-right: 30px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+ before actuall scrolling happens, thus preventing shaking and
+ flickering artifacts. */
+.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+ position: absolute;
+ z-index: 6;
+ display: none;
+}
+.CodeMirror-vscrollbar {
+ right: 0; top: 0;
+ overflow-x: hidden;
+ overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+ bottom: 0; left: 0;
+ overflow-y: hidden;
+ overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+ right: 0; bottom: 0;
+}
+.CodeMirror-gutter-filler {
+ left: 0; bottom: 0;
+}
+
+.CodeMirror-gutters {
+ position: absolute; left: 0; top: 0;
+ z-index: 3;
+}
+.CodeMirror-gutter {
+ white-space: normal;
+ height: 100%;
+ display: inline-block;
+ margin-bottom: -30px;
+ /* Hack to make IE7 behave */
+ *zoom:1;
+ *display:inline;
+}
+.CodeMirror-gutter-wrapper {
+ position: absolute;
+ z-index: 4;
+ background: none !important;
+ border: none !important;
+}
+.CodeMirror-gutter-background {
+ position: absolute;
+ top: 0; bottom: 0;
+ z-index: 4;
+}
+.CodeMirror-gutter-elt {
+ position: absolute;
+ cursor: default;
+ z-index: 4;
+}
+.CodeMirror-gutter-wrapper {
+ -webkit-user-select: none;
+ -moz-user-select: none;
+ user-select: none;
+}
+
+.CodeMirror-lines {
+ cursor: text;
+ min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre {
+ /* Reset some styles that the rest of the page might have set */
+ -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
+ border-width: 0;
+ background: transparent;
+ font-family: inherit;
+ font-size: inherit;
+ margin: 0;
+ white-space: pre;
+ word-wrap: normal;
+ line-height: inherit;
+ color: inherit;
+ z-index: 2;
+ position: relative;
+ overflow: visible;
+ -webkit-tap-highlight-color: transparent;
+}
+.CodeMirror-wrap pre {
+ word-wrap: break-word;
+ white-space: pre-wrap;
+ word-break: normal;
+}
+
+.CodeMirror-linebackground {
+ position: absolute;
+ left: 0; right: 0; top: 0; bottom: 0;
+ z-index: 0;
+}
+
+.CodeMirror-linewidget {
+ position: relative;
+ z-index: 2;
+ overflow: auto;
+}
+
+.CodeMirror-widget {}
+
+.CodeMirror-code {
+ outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+ -moz-box-sizing: content-box;
+ box-sizing: content-box;
+}
+
+.CodeMirror-measure {
+ position: absolute;
+ width: 100%;
+ height: 0;
+ overflow: hidden;
+ visibility: hidden;
+}
+
+.CodeMirror-cursor { position: absolute; }
+.CodeMirror-measure pre { position: static; }
+
+div.CodeMirror-cursors {
+ visibility: hidden;
+ position: relative;
+ z-index: 3;
+}
+div.CodeMirror-dragcursors {
+ visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+ visibility: visible;
+}
+
+.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
+.CodeMirror-crosshair { cursor: crosshair; }
+.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
+.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
+
+.cm-searching {
+ background: #ffa;
+ background: rgba(255, 255, 0, .4);
+}
+
+/* IE7 hack to prevent it from returning funny offsetTops on the spans */
+.CodeMirror span { *vertical-align: text-bottom; }
+
+/* Used to force a border model for a node */
+.cm-force-border { padding-right: .1px; }
+
+@media print {
+ /* Hide the cursor when printing */
+ .CodeMirror div.CodeMirror-cursors {
+ visibility: hidden;
+ }
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after { content: ''; }
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext { background: none; }
+
+.CodeMirror {
+ height: auto;
+ min-height: 300px;
+ border: 1px solid #ddd;
+ border-bottom-left-radius: 4px;
+ border-bottom-right-radius: 4px;
+ padding: 10px;
+ font: inherit;
+}
+
+.CodeMirror-scroll {
+ min-height: 300px
+}
+
+.CodeMirror-fullscreen {
+ background: #fff;
+ position: fixed !important;
+ top: 50px;
+ left: 0;
+ right: 0;
+ bottom: 0;
+ height: auto;
+ z-index: 9;
+}
+
+.CodeMirror-sided {
+ width: 50% !important;
+}
+
+.editor-toolbar {
+ position: relative;
+ opacity: .6;
+ -webkit-user-select: none;
+ -moz-user-select: none;
+ -ms-user-select: none;
+ -o-user-select: none;
+ user-select: none;
+ padding: 0 10px;
+ border-top: 1px solid #bbb;
+ border-left: 1px solid #bbb;
+ border-right: 1px solid #bbb;
+ border-top-left-radius: 4px;
+ border-top-right-radius: 4px;
+}
+
+.editor-toolbar:after,
+.editor-toolbar:before {
+ display: block;
+ content: ' ';
+ height: 1px;
+}
+
+.editor-toolbar:before {
+ margin-bottom: 8px
+}
+
+.editor-toolbar:after {
+ margin-top: 8px
+}
+
+.editor-toolbar:hover,
+.editor-wrapper input.title:focus,
+.editor-wrapper input.title:hover {
+ opacity: .8
+}
+
+.editor-toolbar.fullscreen {
+ width: 100%;
+ height: 50px;
+ overflow-x: auto;
+ overflow-y: hidden;
+ white-space: nowrap;
+ padding-top: 10px;
+ padding-bottom: 10px;
+ box-sizing: border-box;
+ background: #fff;
+ border: 0;
+ position: fixed;
+ top: 0;
+ left: 0;
+ opacity: 1;
+ z-index: 9;
+}
+
+.editor-toolbar.fullscreen::before {
+ width: 20px;
+ height: 50px;
+ background: -moz-linear-gradient(left, rgba(255, 255, 255, 1) 0%, rgba(125, 185, 232, 0.01) 100%);
+ background: -webkit-gradient(linear, left top, right top, color-stop(0%, rgba(255, 255, 255, 1)), color-stop(100%, rgba(125, 185, 232, 0.01)));
+ background: -webkit-linear-gradient(left, rgba(255, 255, 255, 1) 0%, rgba(125, 185, 232, 0.01) 100%);
+ background: -o-linear-gradient(left, rgba(255, 255, 255, 1) 0%, rgba(125, 185, 232, 0.01) 100%);
+ background: -ms-linear-gradient(left, rgba(255, 255, 255, 1) 0%, rgba(125, 185, 232, 0.01) 100%);
+ background: linear-gradient(to right, rgba(255, 255, 255, 1) 0%, rgba(125, 185, 232, 0.01) 100%);
+ filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#ffffff', endColorstr='#037db9e8', GradientType=1);
+ position: fixed;
+ top: 0;
+ left: 0;
+ margin: 0;
+ padding: 0;
+}
+
+.editor-toolbar.fullscreen::after {
+ width: 20px;
+ height: 50px;
+ background: -moz-linear-gradient(left, rgba(125, 185, 232, 0.01) 0%, rgba(254, 254, 255, 1) 99%, rgba(255, 255, 255, 1) 100%);
+ background: -webkit-gradient(linear, left top, right top, color-stop(0%, rgba(125, 185, 232, 0.01)), color-stop(99%, rgba(254, 254, 255, 1)), color-stop(100%, rgba(255, 255, 255, 1)));
+ background: -webkit-linear-gradient(left, rgba(125, 185, 232, 0.01) 0%, rgba(254, 254, 255, 1) 99%, rgba(255, 255, 255, 1) 100%);
+ background: -o-linear-gradient(left, rgba(125, 185, 232, 0.01) 0%, rgba(254, 254, 255, 1) 99%, rgba(255, 255, 255, 1) 100%);
+ background: -ms-linear-gradient(left, rgba(125, 185, 232, 0.01) 0%, rgba(254, 254, 255, 1) 99%, rgba(255, 255, 255, 1) 100%);
+ background: linear-gradient(to right, rgba(125, 185, 232, 0.01) 0%, rgba(254, 254, 255, 1) 99%, rgba(255, 255, 255, 1) 100%);
+ filter: progid: DXImageTransform.Microsoft.gradient( startColorstr='#037db9e8', endColorstr='#ffffff', GradientType=1);
+ position: fixed;
+ top: 0;
+ right: 0;
+ margin: 0;
+ padding: 0;
+}
+
+.editor-toolbar a {
+ display: inline-block;
+ text-align: center;
+ text-decoration: none!important;
+ color: #2c3e50!important;
+ width: 30px;
+ height: 30px;
+ margin: 0;
+ border: 1px solid transparent;
+ border-radius: 3px;
+ cursor: pointer;
+}
+
+.editor-toolbar a.active,
+.editor-toolbar a:hover {
+ background: #fcfcfc;
+ border-color: #95a5a6;
+}
+
+.editor-toolbar a:before {
+ line-height: 30px
+}
+
+.editor-toolbar i.separator {
+ display: inline-block;
+ width: 0;
+ border-left: 1px solid #d9d9d9;
+ border-right: 1px solid #fff;
+ color: transparent;
+ text-indent: -10px;
+ margin: 0 6px;
+}
+
+.editor-toolbar a.fa-header-x:after {
+ font-family: Arial, "Helvetica Neue", Helvetica, sans-serif;
+ font-size: 65%;
+ vertical-align: text-bottom;
+ position: relative;
+ top: 2px;
+}
+
+.editor-toolbar a.fa-header-1:after {
+ content: "1";
+}
+
+.editor-toolbar a.fa-header-2:after {
+ content: "2";
+}
+
+.editor-toolbar a.fa-header-3:after {
+ content: "3";
+}
+
+.editor-toolbar a.fa-header-bigger:after {
+ content: "▲";
+}
+
+.editor-toolbar a.fa-header-smaller:after {
+ content: "▼";
+}
+
+.editor-toolbar.disabled-for-preview a:not(.no-disable) {
+ pointer-events: none;
+ background: #fff;
+ border-color: transparent;
+ text-shadow: inherit;
+}
+
+@media only screen and (max-width: 700px) {
+ .editor-toolbar a.no-mobile {
+ display: none;
+ }
+}
+
+.editor-statusbar {
+ padding: 8px 10px;
+ font-size: 12px;
+ color: #959694;
+ text-align: right;
+}
+
+.editor-statusbar span {
+ display: inline-block;
+ min-width: 4em;
+ margin-left: 1em;
+}
+
+.editor-statusbar .lines:before {
+ content: 'lines: '
+}
+
+.editor-statusbar .words:before {
+ content: 'words: '
+}
+
+.editor-preview {
+ padding: 10px;
+ position: absolute;
+ width: 100%;
+ height: 100%;
+ top: 0;
+ left: 0;
+ background: #fafafa;
+ z-index: 9999;
+ overflow: auto;
+ display: none;
+ box-sizing: border-box;
+}
+
+.editor-preview-side {
+ padding: 10px;
+ position: fixed;
+ bottom: 0;
+ width: 50%;
+ top: 50px;
+ right: 0;
+ background: #fafafa;
+ z-index: 9999;
+ overflow: auto;
+ display: none;
+ box-sizing: border-box;
+ border: 1px solid #ddd;
+}
+
+.editor-preview-active-side {
+ display: block
+}
+
+.editor-preview-active {
+ display: block
+}
+
+.editor-preview>p,
+.editor-preview-side>p {
+ margin-top: 0
+}
+
+.editor-preview pre,
+.editor-preview-side pre {
+ background: #eee;
+ margin-bottom: 10px;
+}
+
+.editor-preview table td,
+.editor-preview table th,
+.editor-preview-side table td,
+.editor-preview-side table th {
+ border: 1px solid #ddd;
+ padding: 5px;
+}
+
+.CodeMirror .CodeMirror-selected {
+ background: #d9d9d9;
+}
+
+.CodeMirror .CodeMirror-code .cm-header-1 {
+ font-size: 200%;
+ line-height: 200%;
+}
+
+.CodeMirror .CodeMirror-code .cm-header-2 {
+ font-size: 160%;
+ line-height: 160%;
+}
+
+.CodeMirror .CodeMirror-code .cm-header-3 {
+ font-size: 125%;
+ line-height: 125%;
+}
+
+.CodeMirror .CodeMirror-code .cm-header-4 {
+ font-size: 110%;
+ line-height: 110%;
+}
+
+.CodeMirror .CodeMirror-code .cm-comment {
+ background: rgba(0, 0, 0, .05);
+ border-radius: 2px;
+}
+
+.CodeMirror .CodeMirror-code .cm-link {
+ color: #7f8c8d;
+}
+
+.CodeMirror .CodeMirror-code .cm-url {
+ color: #aab2b3;
+}
+
+.CodeMirror .CodeMirror-code .cm-strikethrough {
+ text-decoration: line-through;
+}
+.CodeMirror .cm-spell-error:not(.cm-url):not(.cm-comment) {
+ background: rgba(255, 0, 0, .15);
+}
\ No newline at end of file
diff --git a/debug/simplemde.debug.js b/debug/simplemde.debug.js
new file mode 100644
index 0000000..3e88c52
--- /dev/null
+++ b/debug/simplemde.debug.js
@@ -0,0 +1,14028 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.SimpleMDE = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o?@[\\]^_`{|}~ ";
+
+
+ // Create the overlay and such
+ var overlay = {
+ token: function(stream, state) {
+ var ch = stream.peek();
+ var word = "";
+
+ if(rx_word.includes(ch)) {
+ stream.next();
+ return null;
+ }
+
+ while((ch = stream.peek()) != null && !rx_word.includes(ch)) {
+ word += ch;
+ stream.next();
+ }
+
+ if(typo && !typo.check(word))
+ return "spell-error"; // CSS class: cm-spell-error
+
+ return null;
+ }
+ };
+
+ var mode = CodeMirror.getMode(
+ config, config.backdrop || "text/plain"
+ );
+
+ return CodeMirror.overlayMode(mode, overlay, true);
+});
+
+
+// Because some browsers don't support this functionality yet
+if(!String.prototype.includes) {
+ String.prototype.includes = function() {'use strict';
+ return String.prototype.indexOf.apply(this, arguments) !== -1;
+ };
+}
+}).call(global, module, undefined, undefined);
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{"C:\\phantomx\\projects\\simplemde-markdown-editor\\node_modules\\codemirror-spell-checker\\src\\js\\typo.js":2,"codemirror":6}],2:[function(require,module,exports){
+(function (global){
+; var __browserify_shim_require__=require;(function browserifyShim(module, exports, require, define, browserify_shim__define__module__export__) {
+'use strict';
+
+/**
+ * Typo is a JavaScript implementation of a spellchecker using hunspell-style
+ * dictionaries.
+ */
+
+/**
+ * Typo constructor.
+ *
+ * @param {String} [dictionary] The locale code of the dictionary being used. e.g.,
+ * "en_US". This is only used to auto-load dictionaries.
+ * @param {String} [affData] The data from the dictionary's .aff file. If omitted
+ * and the first argument is supplied, in "chrome" platform,
+ * the .aff file will be loaded automatically from
+ * lib/typo/dictionaries/[dictionary]/[dictionary].aff
+ * In other platform, it will be loaded from
+ * [setting.path]/dictionaries/[dictionary]/[dictionary].aff
+ * @param {String} [wordsData] The data from the dictionary's .dic file. If omitted,
+ * and the first argument is supplied, in "chrome" platform,
+ * the .dic file will be loaded automatically from
+ * lib/typo/dictionaries/[dictionary]/[dictionary].dic
+ * In other platform, it will be loaded from
+ * [setting.path]/dictionaries/[dictionary]/[dictionary].dic
+ * @param {Object} [settings] Constructor settings. Available properties are:
+ * {String} [platform]: "chrome" for Chrome Extension or other
+ * value for the usual web.
+ * {String} [dictionaryPath]: path to load dictionary from in non-chrome
+ * environment.
+ * {Object} [flags]: flag information.
+ *
+ *
+ * @returns {Typo} A Typo object.
+ */
+
+var Typo = function (dictionary, affData, wordsData, settings) {
+ settings = settings || {};
+
+ /** Determines the method used for auto-loading .aff and .dic files. **/
+ this.platform = settings.platform || "chrome";
+
+ this.dictionary = null;
+
+ this.rules = {};
+ this.dictionaryTable = {};
+
+ this.compoundRules = [];
+ this.compoundRuleCodes = {};
+
+ this.replacementTable = [];
+
+ this.flags = settings.flags || {};
+
+ if (dictionary) {
+ this.dictionary = dictionary;
+
+ if (this.platform == "chrome") {
+ if (!affData) affData = this._readFile(chrome.extension.getURL("lib/typo/dictionaries/" + dictionary + "/" + dictionary + ".aff"));
+ if (!wordsData) wordsData = this._readFile(chrome.extension.getURL("lib/typo/dictionaries/" + dictionary + "/" + dictionary + ".dic"));
+ } else {
+ var path = settings.dictionaryPath || '';
+
+ if (!affData) affData = this._readFile(path + "/" + dictionary + "/" + dictionary + ".aff");
+ if (!wordsData) wordsData = this._readFile(path + "/" + dictionary + "/" + dictionary + ".dic");
+ }
+
+ this.rules = this._parseAFF(affData);
+
+ // Save the rule codes that are used in compound rules.
+ this.compoundRuleCodes = {};
+
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ var rule = this.compoundRules[i];
+
+ for (var j = 0, _jlen = rule.length; j < _jlen; j++) {
+ this.compoundRuleCodes[rule[j]] = [];
+ }
+ }
+
+ // If we add this ONLYINCOMPOUND flag to this.compoundRuleCodes, then _parseDIC
+ // will do the work of saving the list of words that are compound-only.
+ if ("ONLYINCOMPOUND" in this.flags) {
+ this.compoundRuleCodes[this.flags.ONLYINCOMPOUND] = [];
+ }
+
+ this.dictionaryTable = this._parseDIC(wordsData);
+
+ // Get rid of any codes from the compound rule codes that are never used
+ // (or that were special regex characters). Not especially necessary...
+ for (var i in this.compoundRuleCodes) {
+ if (this.compoundRuleCodes[i].length == 0) {
+ delete this.compoundRuleCodes[i];
+ }
+ }
+
+ // Build the full regular expressions for each compound rule.
+ // I have a feeling (but no confirmation yet) that this method of
+ // testing for compound words is probably slow.
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ var ruleText = this.compoundRules[i];
+
+ var expressionText = "";
+
+ for (var j = 0, _jlen = ruleText.length; j < _jlen; j++) {
+ var character = ruleText[j];
+
+ if (character in this.compoundRuleCodes) {
+ expressionText += "(" + this.compoundRuleCodes[character].join("|") + ")";
+ }
+ else {
+ expressionText += character;
+ }
+ }
+
+ this.compoundRules[i] = new RegExp(expressionText, "i");
+ }
+ }
+
+ return this;
+};
+
+Typo.prototype = {
+ /**
+ * Loads a Typo instance from a hash of all of the Typo properties.
+ *
+ * @param object obj A hash of Typo properties, probably gotten from a JSON.parse(JSON.stringify(typo_instance)).
+ */
+
+ load : function (obj) {
+ for (var i in obj) {
+ this[i] = obj[i];
+ }
+
+ return this;
+ },
+
+ /**
+ * Read the contents of a file.
+ *
+ * @param {String} path The path (relative) to the file.
+ * @param {String} [charset="ISO8859-1"] The expected charset of the file
+ * @returns string The file data.
+ */
+
+ _readFile : function (path, charset) {
+ if (!charset) charset = "ISO8859-1";
+
+ var req = new XMLHttpRequest();
+ req.open("GET", path, false);
+
+ if (req.overrideMimeType)
+ req.overrideMimeType("text/plain; charset=" + charset);
+
+ req.send(null);
+
+ return req.responseText;
+ },
+
+ /**
+ * Parse the rules out from a .aff file.
+ *
+ * @param {String} data The contents of the affix file.
+ * @returns object The rules from the file.
+ */
+
+ _parseAFF : function (data) {
+ var rules = {};
+
+ // Remove comment lines
+ data = this._removeAffixComments(data);
+
+ var lines = data.split("\n");
+
+ for (var i = 0, _len = lines.length; i < _len; i++) {
+ var line = lines[i];
+
+ var definitionParts = line.split(/\s+/);
+
+ var ruleType = definitionParts[0];
+
+ if (ruleType == "PFX" || ruleType == "SFX") {
+ var ruleCode = definitionParts[1];
+ var combineable = definitionParts[2];
+ var numEntries = parseInt(definitionParts[3], 10);
+
+ var entries = [];
+
+ for (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {
+ var line = lines[j];
+
+ var lineParts = line.split(/\s+/);
+ var charactersToRemove = lineParts[2];
+
+ var additionParts = lineParts[3].split("/");
+
+ var charactersToAdd = additionParts[0];
+ if (charactersToAdd === "0") charactersToAdd = "";
+
+ var continuationClasses = this.parseRuleCodes(additionParts[1]);
+
+ var regexToMatch = lineParts[4];
+
+ var entry = {};
+ entry.add = charactersToAdd;
+
+ if (continuationClasses.length > 0) entry.continuationClasses = continuationClasses;
+
+ if (regexToMatch !== ".") {
+ if (ruleType === "SFX") {
+ entry.match = new RegExp(regexToMatch + "$");
+ }
+ else {
+ entry.match = new RegExp("^" + regexToMatch);
+ }
+ }
+
+ if (charactersToRemove != "0") {
+ if (ruleType === "SFX") {
+ entry.remove = new RegExp(charactersToRemove + "$");
+ }
+ else {
+ entry.remove = charactersToRemove;
+ }
+ }
+
+ entries.push(entry);
+ }
+
+ rules[ruleCode] = { "type" : ruleType, "combineable" : (combineable == "Y"), "entries" : entries };
+
+ i += numEntries;
+ }
+ else if (ruleType === "COMPOUNDRULE") {
+ var numEntries = parseInt(definitionParts[1], 10);
+
+ for (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {
+ var line = lines[j];
+
+ var lineParts = line.split(/\s+/);
+ this.compoundRules.push(lineParts[1]);
+ }
+
+ i += numEntries;
+ }
+ else if (ruleType === "REP") {
+ var lineParts = line.split(/\s+/);
+
+ if (lineParts.length === 3) {
+ this.replacementTable.push([ lineParts[1], lineParts[2] ]);
+ }
+ }
+ else {
+ // ONLYINCOMPOUND
+ // COMPOUNDMIN
+ // FLAG
+ // KEEPCASE
+ // NEEDAFFIX
+
+ this.flags[ruleType] = definitionParts[1];
+ }
+ }
+
+ return rules;
+ },
+
+ /**
+ * Removes comment lines and then cleans up blank lines and trailing whitespace.
+ *
+ * @param {String} data The data from an affix file.
+ * @return {String} The cleaned-up data.
+ */
+
+ _removeAffixComments : function (data) {
+ // Remove comments
+ data = data.replace(/#.*$/mg, "");
+
+ // Trim each line
+ data = data.replace(/^\s\s*/m, '').replace(/\s\s*$/m, '');
+
+ // Remove blank lines.
+ data = data.replace(/\n{2,}/g, "\n");
+
+ // Trim the entire string
+ data = data.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ return data;
+ },
+
+ /**
+ * Parses the words out from the .dic file.
+ *
+ * @param {String} data The data from the dictionary file.
+ * @returns object The lookup table containing all of the words and
+ * word forms from the dictionary.
+ */
+
+ _parseDIC : function (data) {
+ data = this._removeDicComments(data);
+
+ var lines = data.split("\n");
+ var dictionaryTable = {};
+
+ function addWord(word, rules) {
+ // Some dictionaries will list the same word multiple times with different rule sets.
+ if (!(word in dictionaryTable) || typeof dictionaryTable[word] != 'object') {
+ dictionaryTable[word] = [];
+ }
+
+ dictionaryTable[word].push(rules);
+ }
+
+ // The first line is the number of words in the dictionary.
+ for (var i = 1, _len = lines.length; i < _len; i++) {
+ var line = lines[i];
+
+ var parts = line.split("/", 2);
+
+ var word = parts[0];
+
+ // Now for each affix rule, generate that form of the word.
+ if (parts.length > 1) {
+ var ruleCodesArray = this.parseRuleCodes(parts[1]);
+
+ // Save the ruleCodes for compound word situations.
+ if (!("NEEDAFFIX" in this.flags) || ruleCodesArray.indexOf(this.flags.NEEDAFFIX) == -1) {
+ addWord(word, ruleCodesArray);
+ }
+
+ for (var j = 0, _jlen = ruleCodesArray.length; j < _jlen; j++) {
+ var code = ruleCodesArray[j];
+
+ var rule = this.rules[code];
+
+ if (rule) {
+ var newWords = this._applyRule(word, rule);
+
+ for (var ii = 0, _iilen = newWords.length; ii < _iilen; ii++) {
+ var newWord = newWords[ii];
+
+ addWord(newWord, []);
+
+ if (rule.combineable) {
+ for (var k = j + 1; k < _jlen; k++) {
+ var combineCode = ruleCodesArray[k];
+
+ var combineRule = this.rules[combineCode];
+
+ if (combineRule) {
+ if (combineRule.combineable && (rule.type != combineRule.type)) {
+ var otherNewWords = this._applyRule(newWord, combineRule);
+
+ for (var iii = 0, _iiilen = otherNewWords.length; iii < _iiilen; iii++) {
+ var otherNewWord = otherNewWords[iii];
+ addWord(otherNewWord, []);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (code in this.compoundRuleCodes) {
+ this.compoundRuleCodes[code].push(word);
+ }
+ }
+ }
+ else {
+ addWord(word.trim(), []);
+ }
+ }
+
+ return dictionaryTable;
+ },
+
+
+ /**
+ * Removes comment lines and then cleans up blank lines and trailing whitespace.
+ *
+ * @param {String} data The data from a .dic file.
+ * @return {String} The cleaned-up data.
+ */
+
+ _removeDicComments : function (data) {
+ // I can't find any official documentation on it, but at least the de_DE
+ // dictionary uses tab-indented lines as comments.
+
+ // Remove comments
+ data = data.replace(/^\t.*$/mg, "");
+
+ return data;
+
+ // Trim each line
+ data = data.replace(/^\s\s*/m, '').replace(/\s\s*$/m, '');
+
+ // Remove blank lines.
+ data = data.replace(/\n{2,}/g, "\n");
+
+ // Trim the entire string
+ data = data.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ return data;
+ },
+
+ parseRuleCodes : function (textCodes) {
+ if (!textCodes) {
+ return [];
+ }
+ else if (!("FLAG" in this.flags)) {
+ return textCodes.split("");
+ }
+ else if (this.flags.FLAG === "long") {
+ var flags = [];
+
+ for (var i = 0, _len = textCodes.length; i < _len; i += 2) {
+ flags.push(textCodes.substr(i, 2));
+ }
+
+ return flags;
+ }
+ else if (this.flags.FLAG === "num") {
+ return textCode.split(",");
+ }
+ },
+
+ /**
+ * Applies an affix rule to a word.
+ *
+ * @param {String} word The base word.
+ * @param {Object} rule The affix rule.
+ * @returns {String[]} The new words generated by the rule.
+ */
+
+ _applyRule : function (word, rule) {
+ var entries = rule.entries;
+ var newWords = [];
+
+ for (var i = 0, _len = entries.length; i < _len; i++) {
+ var entry = entries[i];
+
+ if (!entry.match || word.match(entry.match)) {
+ var newWord = word;
+
+ if (entry.remove) {
+ newWord = newWord.replace(entry.remove, "");
+ }
+
+ if (rule.type === "SFX") {
+ newWord = newWord + entry.add;
+ }
+ else {
+ newWord = entry.add + newWord;
+ }
+
+ newWords.push(newWord);
+
+ if ("continuationClasses" in entry) {
+ for (var j = 0, _jlen = entry.continuationClasses.length; j < _jlen; j++) {
+ var continuationRule = this.rules[entry.continuationClasses[j]];
+
+ if (continuationRule) {
+ newWords = newWords.concat(this._applyRule(newWord, continuationRule));
+ }
+ /*
+ else {
+ // This shouldn't happen, but it does, at least in the de_DE dictionary.
+ // I think the author mistakenly supplied lower-case rule codes instead
+ // of upper-case.
+ }
+ */
+ }
+ }
+ }
+ }
+
+ return newWords;
+ },
+
+ /**
+ * Checks whether a word or a capitalization variant exists in the current dictionary.
+ * The word is trimmed and several variations of capitalizations are checked.
+ * If you want to check a word without any changes made to it, call checkExact()
+ *
+ * @see http://blog.stevenlevithan.com/archives/faster-trim-javascript re:trimming function
+ *
+ * @param {String} aWord The word to check.
+ * @returns {Boolean}
+ */
+
+ check : function (aWord) {
+ // Remove leading and trailing whitespace
+ var trimmedWord = aWord.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ if (this.checkExact(trimmedWord)) {
+ return true;
+ }
+
+ // The exact word is not in the dictionary.
+ if (trimmedWord.toUpperCase() === trimmedWord) {
+ // The word was supplied in all uppercase.
+ // Check for a capitalized form of the word.
+ var capitalizedWord = trimmedWord[0] + trimmedWord.substring(1).toLowerCase();
+
+ if (this.hasFlag(capitalizedWord, "KEEPCASE")) {
+ // Capitalization variants are not allowed for this word.
+ return false;
+ }
+
+ if (this.checkExact(capitalizedWord)) {
+ return true;
+ }
+ }
+
+ var lowercaseWord = trimmedWord.toLowerCase();
+
+ if (lowercaseWord !== trimmedWord) {
+ if (this.hasFlag(lowercaseWord, "KEEPCASE")) {
+ // Capitalization variants are not allowed for this word.
+ return false;
+ }
+
+ // Check for a lowercase form
+ if (this.checkExact(lowercaseWord)) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ /**
+ * Checks whether a word exists in the current dictionary.
+ *
+ * @param {String} word The word to check.
+ * @returns {Boolean}
+ */
+
+ checkExact : function (word) {
+ var ruleCodes = this.dictionaryTable[word];
+
+ if (typeof ruleCodes === 'undefined') {
+ // Check if this might be a compound word.
+ if ("COMPOUNDMIN" in this.flags && word.length >= this.flags.COMPOUNDMIN) {
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ if (word.match(this.compoundRules[i])) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+ else {
+ for (var i = 0, _len = ruleCodes.length; i < _len; i++) {
+ if (!this.hasFlag(word, "ONLYINCOMPOUND", ruleCodes[i])) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+ },
+
+ /**
+ * Looks up whether a given word is flagged with a given flag.
+ *
+ * @param {String} word The word in question.
+ * @param {String} flag The flag in question.
+ * @return {Boolean}
+ */
+
+ hasFlag : function (word, flag, wordFlags) {
+ if (flag in this.flags) {
+ if (typeof wordFlags === 'undefined') {
+ var wordFlags = Array.prototype.concat.apply([], this.dictionaryTable[word]);
+ }
+
+ if (wordFlags && wordFlags.indexOf(this.flags[flag]) !== -1) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ /**
+ * Returns a list of suggestions for a misspelled word.
+ *
+ * @see http://www.norvig.com/spell-correct.html for the basis of this suggestor.
+ * This suggestor is primitive, but it works.
+ *
+ * @param {String} word The misspelling.
+ * @param {Number} [limit=5] The maximum number of suggestions to return.
+ * @returns {String[]} The array of suggestions.
+ */
+
+ alphabet : "",
+
+ suggest : function (word, limit) {
+ if (!limit) limit = 5;
+
+ if (this.check(word)) return [];
+
+ // Check the replacement table.
+ for (var i = 0, _len = this.replacementTable.length; i < _len; i++) {
+ var replacementEntry = this.replacementTable[i];
+
+ if (word.indexOf(replacementEntry[0]) !== -1) {
+ var correctedWord = word.replace(replacementEntry[0], replacementEntry[1]);
+
+ if (this.check(correctedWord)) {
+ return [ correctedWord ];
+ }
+ }
+ }
+
+ var self = this;
+ self.alphabet = "abcdefghijklmnopqrstuvwxyz";
+
+ /*
+ if (!self.alphabet) {
+ // Use the alphabet as implicitly defined by the words in the dictionary.
+ var alphaHash = {};
+
+ for (var i in self.dictionaryTable) {
+ for (var j = 0, _len = i.length; j < _len; j++) {
+ alphaHash[i[j]] = true;
+ }
+ }
+
+ for (var i in alphaHash) {
+ self.alphabet += i;
+ }
+
+ var alphaArray = self.alphabet.split("");
+ alphaArray.sort();
+ self.alphabet = alphaArray.join("");
+ }
+ */
+
+ function edits1(words) {
+ var rv = [];
+
+ for (var ii = 0, _iilen = words.length; ii < _iilen; ii++) {
+ var word = words[ii];
+
+ var splits = [];
+
+ for (var i = 0, _len = word.length + 1; i < _len; i++) {
+ splits.push([ word.substring(0, i), word.substring(i, word.length) ]);
+ }
+
+ var deletes = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ deletes.push(s[0] + s[1].substring(1));
+ }
+ }
+
+ var transposes = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1].length > 1) {
+ transposes.push(s[0] + s[1][1] + s[1][0] + s[1].substring(2));
+ }
+ }
+
+ var replaces = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ for (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {
+ replaces.push(s[0] + self.alphabet[j] + s[1].substring(1));
+ }
+ }
+ }
+
+ var inserts = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ for (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {
+ replaces.push(s[0] + self.alphabet[j] + s[1]);
+ }
+ }
+ }
+
+ rv = rv.concat(deletes);
+ rv = rv.concat(transposes);
+ rv = rv.concat(replaces);
+ rv = rv.concat(inserts);
+ }
+
+ return rv;
+ }
+
+ function known(words) {
+ var rv = [];
+
+ for (var i = 0; i < words.length; i++) {
+ if (self.check(words[i])) {
+ rv.push(words[i]);
+ }
+ }
+
+ return rv;
+ }
+
+ function correct(word) {
+ // Get the edit-distance-1 and edit-distance-2 forms of this word.
+ var ed1 = edits1([word]);
+ var ed2 = edits1(ed1);
+
+ var corrections = known(ed1).concat(known(ed2));
+
+ // Sort the edits based on how many different ways they were created.
+ var weighted_corrections = {};
+
+ for (var i = 0, _len = corrections.length; i < _len; i++) {
+ if (!(corrections[i] in weighted_corrections)) {
+ weighted_corrections[corrections[i]] = 1;
+ }
+ else {
+ weighted_corrections[corrections[i]] += 1;
+ }
+ }
+
+ var sorted_corrections = [];
+
+ for (var i in weighted_corrections) {
+ sorted_corrections.push([ i, weighted_corrections[i] ]);
+ }
+
+ function sorter(a, b) {
+ if (a[1] < b[1]) {
+ return -1;
+ }
+
+ return 1;
+ }
+
+ sorted_corrections.sort(sorter).reverse();
+
+ var rv = [];
+
+ for (var i = 0, _len = Math.min(limit, sorted_corrections.length); i < _len; i++) {
+ if (!self.hasFlag(sorted_corrections[i][0], "NOSUGGEST")) {
+ rv.push(sorted_corrections[i][0]);
+ }
+ }
+
+ return rv;
+ }
+
+ return correct(word);
+ }
+};
+; browserify_shim__define__module__export__(typeof Typo != "undefined" ? Typo : window.Typo);
+
+}).call(global, undefined, undefined, undefined, undefined, function defineExport(ex) { module.exports = ex; });
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{}],3:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.defineOption("fullScreen", false, function(cm, val, old) {
+ if (old == CodeMirror.Init) old = false;
+ if (!old == !val) return;
+ if (val) setFullscreen(cm);
+ else setNormal(cm);
+ });
+
+ function setFullscreen(cm) {
+ var wrap = cm.getWrapperElement();
+ cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,
+ width: wrap.style.width, height: wrap.style.height};
+ wrap.style.width = "";
+ wrap.style.height = "auto";
+ wrap.className += " CodeMirror-fullscreen";
+ document.documentElement.style.overflow = "hidden";
+ cm.refresh();
+ }
+
+ function setNormal(cm) {
+ var wrap = cm.getWrapperElement();
+ wrap.className = wrap.className.replace(/\s*CodeMirror-fullscreen\b/, "");
+ document.documentElement.style.overflow = "";
+ var info = cm.state.fullScreenRestore;
+ wrap.style.width = info.width; wrap.style.height = info.height;
+ window.scrollTo(info.scrollLeft, info.scrollTop);
+ cm.refresh();
+ }
+});
+
+},{"../../lib/codemirror":6}],4:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ var listRE = /^(\s*)(>[> ]*|[*+-]\s|(\d+)([.)]))(\s*)/,
+ emptyListRE = /^(\s*)(>[> ]*|[*+-]|(\d+)[.)])(\s*)$/,
+ unorderedListRE = /[*+-]\s/;
+
+ CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
+ if (cm.getOption("disableInput")) return CodeMirror.Pass;
+ var ranges = cm.listSelections(), replacements = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+ var inQuote = eolState.quote !== 0;
+
+ var line = cm.getLine(pos.line), match = listRE.exec(line);
+ if (!ranges[i].empty() || (!inList && !inQuote) || !match) {
+ cm.execCommand("newlineAndIndent");
+ return;
+ }
+ if (emptyListRE.test(line)) {
+ cm.replaceRange("", {
+ line: pos.line, ch: 0
+ }, {
+ line: pos.line, ch: pos.ch + 1
+ });
+ replacements[i] = "\n";
+ } else {
+ var indent = match[1], after = match[5];
+ var bullet = unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0
+ ? match[2]
+ : (parseInt(match[3], 10) + 1) + match[4];
+
+ replacements[i] = "\n" + indent + bullet + after;
+ }
+ }
+
+ cm.replaceSelections(replacements);
+ };
+});
+
+},{"../../lib/codemirror":6}],5:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Utility function that allows modes to be combined. The mode given
+// as the base argument takes care of most of the normal mode
+// functionality, but a second (typically simple) mode is used, which
+// can override the style of text. Both modes get to parse all of the
+// text, but when both assign a non-null style to a piece of code, the
+// overlay wins, unless the combine argument was true and not overridden,
+// or state.overlay.combineTokens was true, in which case the styles are
+// combined.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.overlayMode = function(base, overlay, combine) {
+ return {
+ startState: function() {
+ return {
+ base: CodeMirror.startState(base),
+ overlay: CodeMirror.startState(overlay),
+ basePos: 0, baseCur: null,
+ overlayPos: 0, overlayCur: null,
+ streamSeen: null
+ };
+ },
+ copyState: function(state) {
+ return {
+ base: CodeMirror.copyState(base, state.base),
+ overlay: CodeMirror.copyState(overlay, state.overlay),
+ basePos: state.basePos, baseCur: null,
+ overlayPos: state.overlayPos, overlayCur: null
+ };
+ },
+
+ token: function(stream, state) {
+ if (stream != state.streamSeen ||
+ Math.min(state.basePos, state.overlayPos) < stream.start) {
+ state.streamSeen = stream;
+ state.basePos = state.overlayPos = stream.start;
+ }
+
+ if (stream.start == state.basePos) {
+ state.baseCur = base.token(stream, state.base);
+ state.basePos = stream.pos;
+ }
+ if (stream.start == state.overlayPos) {
+ stream.pos = stream.start;
+ state.overlayCur = overlay.token(stream, state.overlay);
+ state.overlayPos = stream.pos;
+ }
+ stream.pos = Math.min(state.basePos, state.overlayPos);
+
+ // state.overlay.combineTokens always takes precedence over combine,
+ // unless set to null
+ if (state.overlayCur == null) return state.baseCur;
+ else if (state.baseCur != null &&
+ state.overlay.combineTokens ||
+ combine && state.overlay.combineTokens == null)
+ return state.baseCur + " " + state.overlayCur;
+ else return state.overlayCur;
+ },
+
+ indent: base.indent && function(state, textAfter) {
+ return base.indent(state.base, textAfter);
+ },
+ electricChars: base.electricChars,
+
+ innerMode: function(state) { return {state: state.base, mode: base}; },
+
+ blankLine: function(state) {
+ if (base.blankLine) base.blankLine(state.base);
+ if (overlay.blankLine) overlay.blankLine(state.overlay);
+ }
+ };
+};
+
+});
+
+},{"../../lib/codemirror":6}],6:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ module.exports = mod();
+ else if (typeof define == "function" && define.amd) // AMD
+ return define([], mod);
+ else // Plain browser env
+ this.CodeMirror = mod();
+})(function() {
+ "use strict";
+
+ // BROWSER SNIFFING
+
+ // Kludges for bugs and behavior differences that can't be feature
+ // detected are enabled based on userAgent etc sniffing.
+ var userAgent = navigator.userAgent;
+ var platform = navigator.platform;
+
+ var gecko = /gecko\/\d/i.test(userAgent);
+ var ie_upto10 = /MSIE \d/.test(userAgent);
+ var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
+ var ie = ie_upto10 || ie_11up;
+ var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
+ var webkit = /WebKit\//.test(userAgent);
+ var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
+ var chrome = /Chrome\//.test(userAgent);
+ var presto = /Opera\//.test(userAgent);
+ var safari = /Apple Computer/.test(navigator.vendor);
+ var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
+ var phantom = /PhantomJS/.test(userAgent);
+
+ var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
+ // This is woefully incomplete. Suggestions for alternative methods welcome.
+ var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
+ var mac = ios || /Mac/.test(platform);
+ var windows = /win/i.test(platform);
+
+ var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
+ if (presto_version) presto_version = Number(presto_version[1]);
+ if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
+ // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+ var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
+ var captureRightClick = gecko || (ie && ie_version >= 9);
+
+ // Optimize some code when these features are not used.
+ var sawReadOnlySpans = false, sawCollapsedSpans = false;
+
+ // EDITOR CONSTRUCTOR
+
+ // A CodeMirror instance represents an editor. This is the object
+ // that user code is usually dealing with.
+
+ function CodeMirror(place, options) {
+ if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
+
+ this.options = options = options ? copyObj(options) : {};
+ // Determine effective options based on given values and defaults.
+ copyObj(defaults, options, false);
+ setGuttersForLineNumbers(options);
+
+ var doc = options.value;
+ if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator);
+ this.doc = doc;
+
+ var input = new CodeMirror.inputStyles[options.inputStyle](this);
+ var display = this.display = new Display(place, doc, input);
+ display.wrapper.CodeMirror = this;
+ updateGutters(this);
+ themeChanged(this);
+ if (options.lineWrapping)
+ this.display.wrapper.className += " CodeMirror-wrap";
+ if (options.autofocus && !mobile) display.input.focus();
+ initScrollbars(this);
+
+ this.state = {
+ keyMaps: [], // stores maps added by addKeyMap
+ overlays: [], // highlighting overlays, as added by addOverlay
+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
+ overwrite: false,
+ delayingBlurEvent: false,
+ focused: false,
+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+ pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+ selectingText: false,
+ draggingText: false,
+ highlight: new Delayed(), // stores highlight worker timeout
+ keySeq: null, // Unfinished key sequence
+ specialChars: null
+ };
+
+ var cm = this;
+
+ // Override magic textarea content restore that IE sometimes does
+ // on our hidden textarea on reload
+ if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);
+
+ registerEventHandlers(this);
+ ensureGlobalHandlers();
+
+ startOperation(this);
+ this.curOp.forceUpdate = true;
+ attachDoc(this, doc);
+
+ if ((options.autofocus && !mobile) || cm.hasFocus())
+ setTimeout(bind(onFocus, this), 20);
+ else
+ onBlur(this);
+
+ for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
+ optionHandlers[opt](this, options[opt], Init);
+ maybeUpdateLineNumberWidth(this);
+ if (options.finishInit) options.finishInit(this);
+ for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
+ endOperation(this);
+ // Suppress optimizelegibility in Webkit, since it breaks text
+ // measuring on line wrapping boundaries.
+ if (webkit && options.lineWrapping &&
+ getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+ display.lineDiv.style.textRendering = "auto";
+ }
+
+ // DISPLAY CONSTRUCTOR
+
+ // The display handles the DOM integration, both for input reading
+ // and content drawing. It holds references to DOM nodes and
+ // display-related state.
+
+ function Display(place, doc, input) {
+ var d = this;
+ this.input = input;
+
+ // Covers bottom-right square when both scrollbars are present.
+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+ d.scrollbarFiller.setAttribute("cm-not-content", "true");
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
+ // and h scrollbar is present.
+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+ d.gutterFiller.setAttribute("cm-not-content", "true");
+ // Will contain the actual code, positioned to cover the viewport.
+ d.lineDiv = elt("div", null, "CodeMirror-code");
+ // Elements are added to these to represent selection and cursors.
+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+ // A visibility: hidden element used to find the size of things.
+ d.measure = elt("div", null, "CodeMirror-measure");
+ // When lines outside of the viewport are measured, they are drawn in this.
+ d.lineMeasure = elt("div", null, "CodeMirror-measure");
+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
+ d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+ null, "position: relative; outline: none");
+ // Moved around its parent to cover visible view.
+ d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
+ // Set to the height of the document, allowing scrolling.
+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+ d.sizerWidth = null;
+ // Behavior of elts with overflow: auto and padding is
+ // inconsistent across browsers. This is used to ensure the
+ // scrollable area is big enough.
+ d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
+ // Will contain the gutters, if any.
+ d.gutters = elt("div", null, "CodeMirror-gutters");
+ d.lineGutter = null;
+ // Actual scrollable element.
+ d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
+ d.scroller.setAttribute("tabIndex", "-1");
+ // The element in which the editor lives.
+ d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
+
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+ if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
+ if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
+
+ if (place) {
+ if (place.appendChild) place.appendChild(d.wrapper);
+ else place(d.wrapper);
+ }
+
+ // Current rendered range (may be bigger than the view window).
+ d.viewFrom = d.viewTo = doc.first;
+ d.reportedViewFrom = d.reportedViewTo = doc.first;
+ // Information about the rendered lines.
+ d.view = [];
+ d.renderedView = null;
+ // Holds info about a single rendered line when it was rendered
+ // for measurement, while not in view.
+ d.externalMeasured = null;
+ // Empty space (in pixels) above the view
+ d.viewOffset = 0;
+ d.lastWrapHeight = d.lastWrapWidth = 0;
+ d.updateLineNumbers = null;
+
+ d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+ d.scrollbarsClipped = false;
+
+ // Used to only resize the line number gutter when necessary (when
+ // the amount of lines crosses a boundary that makes its width change)
+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+ // Set to true when a non-horizontal-scrolling line widget is
+ // added. As an optimization, line widget aligning is skipped when
+ // this is false.
+ d.alignWidgets = false;
+
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ d.maxLine = null;
+ d.maxLineLength = 0;
+ d.maxLineChanged = false;
+
+ // Used for measuring wheel scrolling granularity
+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+ // True when shift is held down.
+ d.shift = false;
+
+ // Used to track whether anything happened since the context menu
+ // was opened.
+ d.selForContextMenu = null;
+
+ d.activeTouch = null;
+
+ input.init(d);
+ }
+
+ // STATE UPDATES
+
+ // Used to get the editor into a consistent state again when options change.
+
+ function loadMode(cm) {
+ cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
+ resetModeState(cm);
+ }
+
+ function resetModeState(cm) {
+ cm.doc.iter(function(line) {
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ });
+ cm.doc.frontier = cm.doc.first;
+ startWorker(cm, 100);
+ cm.state.modeGen++;
+ if (cm.curOp) regChange(cm);
+ }
+
+ function wrappingChanged(cm) {
+ if (cm.options.lineWrapping) {
+ addClass(cm.display.wrapper, "CodeMirror-wrap");
+ cm.display.sizer.style.minWidth = "";
+ cm.display.sizerWidth = null;
+ } else {
+ rmClass(cm.display.wrapper, "CodeMirror-wrap");
+ findMaxLine(cm);
+ }
+ estimateLineHeights(cm);
+ regChange(cm);
+ clearCaches(cm);
+ setTimeout(function(){updateScrollbars(cm);}, 100);
+ }
+
+ // Returns a function that estimates the height of a line, to use as
+ // first approximation until the line becomes visible (and is thus
+ // properly measurable).
+ function estimateHeight(cm) {
+ var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
+ var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+ return function(line) {
+ if (lineIsHidden(cm.doc, line)) return 0;
+
+ var widgetsHeight = 0;
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
+ if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
+ }
+
+ if (wrapping)
+ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
+ else
+ return widgetsHeight + th;
+ };
+ }
+
+ function estimateLineHeights(cm) {
+ var doc = cm.doc, est = estimateHeight(cm);
+ doc.iter(function(line) {
+ var estHeight = est(line);
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ });
+ }
+
+ function themeChanged(cm) {
+ cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+ cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+ clearCaches(cm);
+ }
+
+ function guttersChanged(cm) {
+ updateGutters(cm);
+ regChange(cm);
+ setTimeout(function(){alignHorizontally(cm);}, 20);
+ }
+
+ // Rebuild the gutter elements, ensure the margin to the left of the
+ // code matches their width.
+ function updateGutters(cm) {
+ var gutters = cm.display.gutters, specs = cm.options.gutters;
+ removeChildren(gutters);
+ for (var i = 0; i < specs.length; ++i) {
+ var gutterClass = specs[i];
+ var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
+ if (gutterClass == "CodeMirror-linenumbers") {
+ cm.display.lineGutter = gElt;
+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
+ }
+ }
+ gutters.style.display = i ? "" : "none";
+ updateGutterSpace(cm);
+ }
+
+ function updateGutterSpace(cm) {
+ var width = cm.display.gutters.offsetWidth;
+ cm.display.sizer.style.marginLeft = width + "px";
+ }
+
+ // Compute the character length of a line, taking into account
+ // collapsed ranges (see markText) that might hide parts, and join
+ // other lines onto it.
+ function lineLength(line) {
+ if (line.height == 0) return 0;
+ var len = line.text.length, merged, cur = line;
+ while (merged = collapsedSpanAtStart(cur)) {
+ var found = merged.find(0, true);
+ cur = found.from.line;
+ len += found.from.ch - found.to.ch;
+ }
+ cur = line;
+ while (merged = collapsedSpanAtEnd(cur)) {
+ var found = merged.find(0, true);
+ len -= cur.text.length - found.from.ch;
+ cur = found.to.line;
+ len += cur.text.length - found.to.ch;
+ }
+ return len;
+ }
+
+ // Find the longest line in the document.
+ function findMaxLine(cm) {
+ var d = cm.display, doc = cm.doc;
+ d.maxLine = getLine(doc, doc.first);
+ d.maxLineLength = lineLength(d.maxLine);
+ d.maxLineChanged = true;
+ doc.iter(function(line) {
+ var len = lineLength(line);
+ if (len > d.maxLineLength) {
+ d.maxLineLength = len;
+ d.maxLine = line;
+ }
+ });
+ }
+
+ // Make sure the gutters options contains the element
+ // "CodeMirror-linenumbers" when the lineNumbers option is true.
+ function setGuttersForLineNumbers(options) {
+ var found = indexOf(options.gutters, "CodeMirror-linenumbers");
+ if (found == -1 && options.lineNumbers) {
+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
+ } else if (found > -1 && !options.lineNumbers) {
+ options.gutters = options.gutters.slice(0);
+ options.gutters.splice(found, 1);
+ }
+ }
+
+ // SCROLLBARS
+
+ // Prepare DOM reads needed to update the scrollbars. Done in one
+ // shot to minimize update/measure roundtrips.
+ function measureForScrollbars(cm) {
+ var d = cm.display, gutterW = d.gutters.offsetWidth;
+ var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+ return {
+ clientHeight: d.scroller.clientHeight,
+ viewHeight: d.wrapper.clientHeight,
+ scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+ viewWidth: d.wrapper.clientWidth,
+ barLeft: cm.options.fixedGutter ? gutterW : 0,
+ docHeight: docH,
+ scrollHeight: docH + scrollGap(cm) + d.barHeight,
+ nativeBarWidth: d.nativeBarWidth,
+ gutterWidth: gutterW
+ };
+ }
+
+ function NativeScrollbars(place, scroll, cm) {
+ this.cm = cm;
+ var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
+ var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
+ place(vert); place(horiz);
+
+ on(vert, "scroll", function() {
+ if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
+ });
+ on(horiz, "scroll", function() {
+ if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
+ });
+
+ this.checkedOverlay = false;
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+ if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
+ }
+
+ NativeScrollbars.prototype = copyObj({
+ update: function(measure) {
+ var needsH = measure.scrollWidth > measure.clientWidth + 1;
+ var needsV = measure.scrollHeight > measure.clientHeight + 1;
+ var sWidth = measure.nativeBarWidth;
+
+ if (needsV) {
+ this.vert.style.display = "block";
+ this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+ var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+ // A bug in IE8 can cause this value to be negative, so guard it.
+ this.vert.firstChild.style.height =
+ Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
+ } else {
+ this.vert.style.display = "";
+ this.vert.firstChild.style.height = "0";
+ }
+
+ if (needsH) {
+ this.horiz.style.display = "block";
+ this.horiz.style.right = needsV ? sWidth + "px" : "0";
+ this.horiz.style.left = measure.barLeft + "px";
+ var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+ this.horiz.firstChild.style.width =
+ (measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
+ } else {
+ this.horiz.style.display = "";
+ this.horiz.firstChild.style.width = "0";
+ }
+
+ if (!this.checkedOverlay && measure.clientHeight > 0) {
+ if (sWidth == 0) this.overlayHack();
+ this.checkedOverlay = true;
+ }
+
+ return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
+ },
+ setScrollLeft: function(pos) {
+ if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
+ },
+ setScrollTop: function(pos) {
+ if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
+ },
+ overlayHack: function() {
+ var w = mac && !mac_geMountainLion ? "12px" : "18px";
+ this.horiz.style.minHeight = this.vert.style.minWidth = w;
+ var self = this;
+ var barMouseDown = function(e) {
+ if (e_target(e) != self.vert && e_target(e) != self.horiz)
+ operation(self.cm, onMouseDown)(e);
+ };
+ on(this.vert, "mousedown", barMouseDown);
+ on(this.horiz, "mousedown", barMouseDown);
+ },
+ clear: function() {
+ var parent = this.horiz.parentNode;
+ parent.removeChild(this.horiz);
+ parent.removeChild(this.vert);
+ }
+ }, NativeScrollbars.prototype);
+
+ function NullScrollbars() {}
+
+ NullScrollbars.prototype = copyObj({
+ update: function() { return {bottom: 0, right: 0}; },
+ setScrollLeft: function() {},
+ setScrollTop: function() {},
+ clear: function() {}
+ }, NullScrollbars.prototype);
+
+ CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
+
+ function initScrollbars(cm) {
+ if (cm.display.scrollbars) {
+ cm.display.scrollbars.clear();
+ if (cm.display.scrollbars.addClass)
+ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
+ cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+ // Prevent clicks in the scrollbars from killing focus
+ on(node, "mousedown", function() {
+ if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
+ });
+ node.setAttribute("cm-not-content", "true");
+ }, function(pos, axis) {
+ if (axis == "horizontal") setScrollLeft(cm, pos);
+ else setScrollTop(cm, pos);
+ }, cm);
+ if (cm.display.scrollbars.addClass)
+ addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ function updateScrollbars(cm, measure) {
+ if (!measure) measure = measureForScrollbars(cm);
+ var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
+ updateScrollbarsInner(cm, measure);
+ for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+ if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+ updateHeightsInViewport(cm);
+ updateScrollbarsInner(cm, measureForScrollbars(cm));
+ startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
+ }
+ }
+
+ // Re-synchronize the fake scrollbars with the actual size of the
+ // content.
+ function updateScrollbarsInner(cm, measure) {
+ var d = cm.display;
+ var sizes = d.scrollbars.update(measure);
+
+ d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+ d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+
+ if (sizes.right && sizes.bottom) {
+ d.scrollbarFiller.style.display = "block";
+ d.scrollbarFiller.style.height = sizes.bottom + "px";
+ d.scrollbarFiller.style.width = sizes.right + "px";
+ } else d.scrollbarFiller.style.display = "";
+ if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+ d.gutterFiller.style.display = "block";
+ d.gutterFiller.style.height = sizes.bottom + "px";
+ d.gutterFiller.style.width = measure.gutterWidth + "px";
+ } else d.gutterFiller.style.display = "";
+ }
+
+ // Compute the lines that are visible in a given viewport (defaults
+ // the the current scroll position). viewport may contain top,
+ // height, and ensure (see op.scrollToPos) properties.
+ function visibleLines(display, doc, viewport) {
+ var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
+ top = Math.floor(top - paddingTop(display));
+ var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
+
+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+ // forces those lines into the viewport (if possible).
+ if (viewport && viewport.ensure) {
+ var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
+ if (ensureFrom < from) {
+ from = ensureFrom;
+ to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
+ } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+ from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
+ to = ensureTo;
+ }
+ }
+ return {from: from, to: Math.max(to, from + 1)};
+ }
+
+ // LINE NUMBERS
+
+ // Re-align line numbers and gutter marks to compensate for
+ // horizontal scrolling.
+ function alignHorizontally(cm) {
+ var display = cm.display, view = display.view;
+ if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
+ var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
+ var gutterW = display.gutters.offsetWidth, left = comp + "px";
+ for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
+ if (cm.options.fixedGutter && view[i].gutter)
+ view[i].gutter.style.left = left;
+ var align = view[i].alignable;
+ if (align) for (var j = 0; j < align.length; j++)
+ align[j].style.left = left;
+ }
+ if (cm.options.fixedGutter)
+ display.gutters.style.left = (comp + gutterW) + "px";
+ }
+
+ // Used to ensure that the line number gutter is still the right
+ // size for the current document size. Returns true when an update
+ // is needed.
+ function maybeUpdateLineNumberWidth(cm) {
+ if (!cm.options.lineNumbers) return false;
+ var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
+ if (last.length != display.lineNumChars) {
+ var test = display.measure.appendChild(elt("div", [elt("div", last)],
+ "CodeMirror-linenumber CodeMirror-gutter-elt"));
+ var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
+ display.lineGutter.style.width = "";
+ display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+ display.lineNumWidth = display.lineNumInnerWidth + padding;
+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+ display.lineGutter.style.width = display.lineNumWidth + "px";
+ updateGutterSpace(cm);
+ return true;
+ }
+ return false;
+ }
+
+ function lineNumberFor(options, i) {
+ return String(options.lineNumberFormatter(i + options.firstLineNumber));
+ }
+
+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+ // but using getBoundingClientRect to get a sub-pixel-accurate
+ // result.
+ function compensateForHScroll(display) {
+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
+ }
+
+ // DISPLAY DRAWING
+
+ function DisplayUpdate(cm, viewport, force) {
+ var display = cm.display;
+
+ this.viewport = viewport;
+ // Store some values that we'll need later (but don't want to force a relayout for)
+ this.visible = visibleLines(display, cm.doc, viewport);
+ this.editorIsHidden = !display.wrapper.offsetWidth;
+ this.wrapperHeight = display.wrapper.clientHeight;
+ this.wrapperWidth = display.wrapper.clientWidth;
+ this.oldDisplayWidth = displayWidth(cm);
+ this.force = force;
+ this.dims = getDimensions(cm);
+ this.events = [];
+ }
+
+ DisplayUpdate.prototype.signal = function(emitter, type) {
+ if (hasHandler(emitter, type))
+ this.events.push(arguments);
+ };
+ DisplayUpdate.prototype.finish = function() {
+ for (var i = 0; i < this.events.length; i++)
+ signal.apply(null, this.events[i]);
+ };
+
+ function maybeClipScrollbars(cm) {
+ var display = cm.display;
+ if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+ display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
+ display.heightForcer.style.height = scrollGap(cm) + "px";
+ display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+ display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+ display.scrollbarsClipped = true;
+ }
+ }
+
+ // Does the actual updating of the line display. Bails out
+ // (returning false) when there is nothing to be done and forced is
+ // false.
+ function updateDisplayIfNeeded(cm, update) {
+ var display = cm.display, doc = cm.doc;
+
+ if (update.editorIsHidden) {
+ resetView(cm);
+ return false;
+ }
+
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (!update.force &&
+ update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+ display.renderedView == display.view && countDirtyView(cm) == 0)
+ return false;
+
+ if (maybeUpdateLineNumberWidth(cm)) {
+ resetView(cm);
+ update.dims = getDimensions(cm);
+ }
+
+ // Compute a suitable new viewport (from & to)
+ var end = doc.first + doc.size;
+ var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+ if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
+ if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
+ if (sawCollapsedSpans) {
+ from = visualLineNo(cm.doc, from);
+ to = visualLineEndNo(cm.doc, to);
+ }
+
+ var different = from != display.viewFrom || to != display.viewTo ||
+ display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
+ adjustView(cm, from, to);
+
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+ // Position the mover div to align with the current scroll position
+ cm.display.mover.style.top = display.viewOffset + "px";
+
+ var toUpdate = countDirtyView(cm);
+ if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+ return false;
+
+ // For big changes, we hide the enclosing element during the
+ // update, since that speeds up the operations on most browsers.
+ var focused = activeElt();
+ if (toUpdate > 4) display.lineDiv.style.display = "none";
+ patchDisplay(cm, display.updateLineNumbers, update.dims);
+ if (toUpdate > 4) display.lineDiv.style.display = "";
+ display.renderedView = display.view;
+ // There might have been a widget with a focused element that got
+ // hidden or updated, if so re-focus it.
+ if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
+
+ // Prevent selection and cursors from interfering with the scroll
+ // width and height.
+ removeChildren(display.cursorDiv);
+ removeChildren(display.selectionDiv);
+ display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+ if (different) {
+ display.lastWrapHeight = update.wrapperHeight;
+ display.lastWrapWidth = update.wrapperWidth;
+ startWorker(cm, 400);
+ }
+
+ display.updateLineNumbers = null;
+
+ return true;
+ }
+
+ function postUpdateDisplay(cm, update) {
+ var viewport = update.viewport;
+ for (var first = true;; first = false) {
+ if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+ // Clip forced viewport to actual scrollable area.
+ if (viewport && viewport.top != null)
+ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
+ // Updated line heights might result in the drawn area not
+ // actually covering the viewport. Keep looping until it does.
+ update.visible = visibleLines(cm.display, cm.doc, viewport);
+ if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+ break;
+ }
+ if (!updateDisplayIfNeeded(cm, update)) break;
+ updateHeightsInViewport(cm);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ setDocumentHeight(cm, barMeasure);
+ updateScrollbars(cm, barMeasure);
+ }
+
+ update.signal(cm, "update", cm);
+ if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+ update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
+ cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
+ }
+ }
+
+ function updateDisplaySimple(cm, viewport) {
+ var update = new DisplayUpdate(cm, viewport);
+ if (updateDisplayIfNeeded(cm, update)) {
+ updateHeightsInViewport(cm);
+ postUpdateDisplay(cm, update);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ setDocumentHeight(cm, barMeasure);
+ updateScrollbars(cm, barMeasure);
+ update.finish();
+ }
+ }
+
+ function setDocumentHeight(cm, measure) {
+ cm.display.sizer.style.minHeight = measure.docHeight + "px";
+ var total = measure.docHeight + cm.display.barHeight;
+ cm.display.heightForcer.style.top = total + "px";
+ cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + "px";
+ }
+
+ // Read the actual heights of the rendered lines, and update their
+ // stored heights to match.
+ function updateHeightsInViewport(cm) {
+ var display = cm.display;
+ var prevBottom = display.lineDiv.offsetTop;
+ for (var i = 0; i < display.view.length; i++) {
+ var cur = display.view[i], height;
+ if (cur.hidden) continue;
+ if (ie && ie_version < 8) {
+ var bot = cur.node.offsetTop + cur.node.offsetHeight;
+ height = bot - prevBottom;
+ prevBottom = bot;
+ } else {
+ var box = cur.node.getBoundingClientRect();
+ height = box.bottom - box.top;
+ }
+ var diff = cur.line.height - height;
+ if (height < 2) height = textHeight(display);
+ if (diff > .001 || diff < -.001) {
+ updateLineHeight(cur.line, height);
+ updateWidgetHeight(cur.line);
+ if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
+ updateWidgetHeight(cur.rest[j]);
+ }
+ }
+ }
+
+ // Read and store the height of line widgets associated with the
+ // given line.
+ function updateWidgetHeight(line) {
+ if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
+ line.widgets[i].height = line.widgets[i].node.offsetHeight;
+ }
+
+ // Do a bulk-read of the DOM positions and sizes needed to draw the
+ // view, so that we don't interleave reading and writing to the DOM.
+ function getDimensions(cm) {
+ var d = cm.display, left = {}, width = {};
+ var gutterLeft = d.gutters.clientLeft;
+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
+ width[cm.options.gutters[i]] = n.clientWidth;
+ }
+ return {fixedPos: compensateForHScroll(d),
+ gutterTotalWidth: d.gutters.offsetWidth,
+ gutterLeft: left,
+ gutterWidth: width,
+ wrapperWidth: d.wrapper.clientWidth};
+ }
+
+ // Sync the actual display DOM structure with display.view, removing
+ // nodes for lines that are no longer in view, and creating the ones
+ // that are not there yet, and updating the ones that are out of
+ // date.
+ function patchDisplay(cm, updateNumbersFrom, dims) {
+ var display = cm.display, lineNumbers = cm.options.lineNumbers;
+ var container = display.lineDiv, cur = container.firstChild;
+
+ function rm(node) {
+ var next = node.nextSibling;
+ // Works around a throw-scroll bug in OS X Webkit
+ if (webkit && mac && cm.display.currentWheelTarget == node)
+ node.style.display = "none";
+ else
+ node.parentNode.removeChild(node);
+ return next;
+ }
+
+ var view = display.view, lineN = display.viewFrom;
+ // Loop over the elements in the view, syncing cur (the DOM nodes
+ // in display.lineDiv) with the view as we go.
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (lineView.hidden) {
+ } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+ var node = buildLineElement(cm, lineView, lineN, dims);
+ container.insertBefore(node, cur);
+ } else { // Already drawn
+ while (cur != lineView.node) cur = rm(cur);
+ var updateNumber = lineNumbers && updateNumbersFrom != null &&
+ updateNumbersFrom <= lineN && lineView.lineNumber;
+ if (lineView.changes) {
+ if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
+ updateLineForChanges(cm, lineView, lineN, dims);
+ }
+ if (updateNumber) {
+ removeChildren(lineView.lineNumber);
+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
+ }
+ cur = lineView.node.nextSibling;
+ }
+ lineN += lineView.size;
+ }
+ while (cur) cur = rm(cur);
+ }
+
+ // When an aspect of a line changes, a string is added to
+ // lineView.changes. This updates the relevant part of the line's
+ // DOM structure.
+ function updateLineForChanges(cm, lineView, lineN, dims) {
+ for (var j = 0; j < lineView.changes.length; j++) {
+ var type = lineView.changes[j];
+ if (type == "text") updateLineText(cm, lineView);
+ else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
+ else if (type == "class") updateLineClasses(lineView);
+ else if (type == "widget") updateLineWidgets(cm, lineView, dims);
+ }
+ lineView.changes = null;
+ }
+
+ // Lines with gutter elements, widgets or a background class need to
+ // be wrapped, and have the extra elements added to the wrapper div
+ function ensureLineWrapped(lineView) {
+ if (lineView.node == lineView.text) {
+ lineView.node = elt("div", null, null, "position: relative");
+ if (lineView.text.parentNode)
+ lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
+ lineView.node.appendChild(lineView.text);
+ if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
+ }
+ return lineView.node;
+ }
+
+ function updateLineBackground(lineView) {
+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
+ if (cls) cls += " CodeMirror-linebackground";
+ if (lineView.background) {
+ if (cls) lineView.background.className = cls;
+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
+ } else if (cls) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
+ }
+ }
+
+ // Wrapper around buildLineContent which will reuse the structure
+ // in display.externalMeasured when possible.
+ function getLineContent(cm, lineView) {
+ var ext = cm.display.externalMeasured;
+ if (ext && ext.line == lineView.line) {
+ cm.display.externalMeasured = null;
+ lineView.measure = ext.measure;
+ return ext.built;
+ }
+ return buildLineContent(cm, lineView);
+ }
+
+ // Redraw the line's text. Interacts with the background and text
+ // classes because the mode may output tokens that influence these
+ // classes.
+ function updateLineText(cm, lineView) {
+ var cls = lineView.text.className;
+ var built = getLineContent(cm, lineView);
+ if (lineView.text == lineView.node) lineView.node = built.pre;
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+ lineView.text = built.pre;
+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+ lineView.bgClass = built.bgClass;
+ lineView.textClass = built.textClass;
+ updateLineClasses(lineView);
+ } else if (cls) {
+ lineView.text.className = cls;
+ }
+ }
+
+ function updateLineClasses(lineView) {
+ updateLineBackground(lineView);
+ if (lineView.line.wrapClass)
+ ensureLineWrapped(lineView).className = lineView.line.wrapClass;
+ else if (lineView.node != lineView.text)
+ lineView.node.className = "";
+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
+ lineView.text.className = textClass || "";
+ }
+
+ function updateLineGutter(cm, lineView, lineN, dims) {
+ if (lineView.gutter) {
+ lineView.node.removeChild(lineView.gutter);
+ lineView.gutter = null;
+ }
+ if (lineView.gutterBackground) {
+ lineView.node.removeChild(lineView.gutterBackground);
+ lineView.gutterBackground = null;
+ }
+ if (lineView.line.gutterClass) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+ "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
+ "px; width: " + dims.gutterTotalWidth + "px");
+ wrap.insertBefore(lineView.gutterBackground, lineView.text);
+ }
+ var markers = lineView.line.gutterMarkers;
+ if (cm.options.lineNumbers || markers) {
+ var wrap = ensureLineWrapped(lineView);
+ var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px");
+ cm.display.input.setUneditable(gutterWrap);
+ wrap.insertBefore(gutterWrap, lineView.text);
+ if (lineView.line.gutterClass)
+ gutterWrap.className += " " + lineView.line.gutterClass;
+ if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+ lineView.lineNumber = gutterWrap.appendChild(
+ elt("div", lineNumberFor(cm.options, lineN),
+ "CodeMirror-linenumber CodeMirror-gutter-elt",
+ "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+ + cm.display.lineNumInnerWidth + "px"));
+ if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
+ if (found)
+ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
+ dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
+ }
+ }
+ }
+
+ function updateLineWidgets(cm, lineView, dims) {
+ if (lineView.alignable) lineView.alignable = null;
+ for (var node = lineView.node.firstChild, next; node; node = next) {
+ var next = node.nextSibling;
+ if (node.className == "CodeMirror-linewidget")
+ lineView.node.removeChild(node);
+ }
+ insertLineWidgets(cm, lineView, dims);
+ }
+
+ // Build a line's DOM representation from scratch
+ function buildLineElement(cm, lineView, lineN, dims) {
+ var built = getLineContent(cm, lineView);
+ lineView.text = lineView.node = built.pre;
+ if (built.bgClass) lineView.bgClass = built.bgClass;
+ if (built.textClass) lineView.textClass = built.textClass;
+
+ updateLineClasses(lineView);
+ updateLineGutter(cm, lineView, lineN, dims);
+ insertLineWidgets(cm, lineView, dims);
+ return lineView.node;
+ }
+
+ // A lineView may contain multiple logical lines (when merged by
+ // collapsed spans). The widgets for all of them need to be drawn.
+ function insertLineWidgets(cm, lineView, dims) {
+ insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
+ }
+
+ function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+ if (!line.widgets) return;
+ var wrap = ensureLineWrapped(lineView);
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+ var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
+ if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
+ positionLineWidget(widget, node, lineView, dims);
+ cm.display.input.setUneditable(node);
+ if (allowAbove && widget.above)
+ wrap.insertBefore(node, lineView.gutter || lineView.text);
+ else
+ wrap.appendChild(node);
+ signalLater(widget, "redraw");
+ }
+ }
+
+ function positionLineWidget(widget, node, lineView, dims) {
+ if (widget.noHScroll) {
+ (lineView.alignable || (lineView.alignable = [])).push(node);
+ var width = dims.wrapperWidth;
+ node.style.left = dims.fixedPos + "px";
+ if (!widget.coverGutter) {
+ width -= dims.gutterTotalWidth;
+ node.style.paddingLeft = dims.gutterTotalWidth + "px";
+ }
+ node.style.width = width + "px";
+ }
+ if (widget.coverGutter) {
+ node.style.zIndex = 5;
+ node.style.position = "relative";
+ if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
+ }
+ }
+
+ // POSITION OBJECT
+
+ // A Pos instance represents a position within the text.
+ var Pos = CodeMirror.Pos = function(line, ch) {
+ if (!(this instanceof Pos)) return new Pos(line, ch);
+ this.line = line; this.ch = ch;
+ };
+
+ // Compare two positions, return 0 if they are the same, a negative
+ // number when a is less, and a positive number otherwise.
+ var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
+
+ function copyPos(x) {return Pos(x.line, x.ch);}
+ function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
+ function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
+
+ // INPUT HANDLING
+
+ function ensureFocus(cm) {
+ if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
+ }
+
+ function isReadOnly(cm) {
+ return cm.options.readOnly || cm.doc.cantEdit;
+ }
+
+ // This will be set to an array of strings when copying, so that,
+ // when pasting, we know what kind of selections the copied text
+ // was made out of.
+ var lastCopied = null;
+
+ function applyTextInput(cm, inserted, deleted, sel, origin) {
+ var doc = cm.doc;
+ cm.display.shift = false;
+ if (!sel) sel = doc.sel;
+
+ var paste = cm.state.pasteIncoming || origin == "paste";
+ var textLines = doc.splitLines(inserted), multiPaste = null;
+ // When pasing N lines into N selections, insert one line per selection
+ if (paste && sel.ranges.length > 1) {
+ if (lastCopied && lastCopied.join("\n") == inserted) {
+ if (sel.ranges.length % lastCopied.length == 0) {
+ multiPaste = [];
+ for (var i = 0; i < lastCopied.length; i++)
+ multiPaste.push(doc.splitLines(lastCopied[i]));
+ }
+ } else if (textLines.length == sel.ranges.length) {
+ multiPaste = map(textLines, function(l) { return [l]; });
+ }
+ }
+
+ // Normal behavior is to insert the new text into every selection
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ var from = range.from(), to = range.to();
+ if (range.empty()) {
+ if (deleted && deleted > 0) // Handle deletion
+ from = Pos(from.line, from.ch - deleted);
+ else if (cm.state.overwrite && !paste) // Handle overwrite
+ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
+ }
+ var updateInput = cm.curOp.updateInput;
+ var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
+ origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
+ makeChange(cm.doc, changeEvent);
+ signalLater(cm, "inputRead", cm, changeEvent);
+ }
+ if (inserted && !paste)
+ triggerElectric(cm, inserted);
+
+ ensureCursorVisible(cm);
+ cm.curOp.updateInput = updateInput;
+ cm.curOp.typing = true;
+ cm.state.pasteIncoming = cm.state.cutIncoming = false;
+ }
+
+ function handlePaste(e, cm) {
+ var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
+ if (pasted) {
+ e.preventDefault();
+ if (!isReadOnly(cm) && !cm.options.disableInput)
+ runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); });
+ return true;
+ }
+ }
+
+ function triggerElectric(cm, inserted) {
+ // When an 'electric' character is inserted, immediately trigger a reindent
+ if (!cm.options.electricChars || !cm.options.smartIndent) return;
+ var sel = cm.doc.sel;
+
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
+ var mode = cm.getModeAt(range.head);
+ var indented = false;
+ if (mode.electricChars) {
+ for (var j = 0; j < mode.electricChars.length; j++)
+ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+ indented = indentLine(cm, range.head.line, "smart");
+ break;
+ }
+ } else if (mode.electricInput) {
+ if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+ indented = indentLine(cm, range.head.line, "smart");
+ }
+ if (indented) signalLater(cm, "electricInput", cm, range.head.line);
+ }
+ }
+
+ function copyableRanges(cm) {
+ var text = [], ranges = [];
+ for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+ var line = cm.doc.sel.ranges[i].head.line;
+ var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
+ ranges.push(lineRange);
+ text.push(cm.getRange(lineRange.anchor, lineRange.head));
+ }
+ return {text: text, ranges: ranges};
+ }
+
+ function disableBrowserMagic(field) {
+ field.setAttribute("autocorrect", "off");
+ field.setAttribute("autocapitalize", "off");
+ field.setAttribute("spellcheck", "false");
+ }
+
+ // TEXTAREA INPUT STYLE
+
+ function TextareaInput(cm) {
+ this.cm = cm;
+ // See input.poll and input.reset
+ this.prevInput = "";
+
+ // Flag that indicates whether we expect input to appear real soon
+ // now (after some event like 'keypress' or 'input') and are
+ // polling intensively.
+ this.pollingFast = false;
+ // Self-resetting timeout for the poller
+ this.polling = new Delayed();
+ // Tracks when input.reset has punted to just putting a short
+ // string into the textarea instead of the full selection.
+ this.inaccurateSelection = false;
+ // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+ this.hasSelection = false;
+ this.composing = null;
+ };
+
+ function hiddenTextarea() {
+ var te = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
+ var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
+ // The textarea is kept positioned near the cursor to prevent the
+ // fact that it'll be scrolled into view on input from scrolling
+ // our fake cursor out of view. On webkit, when wrap=off, paste is
+ // very slow. So make the area wide instead.
+ if (webkit) te.style.width = "1000px";
+ else te.setAttribute("wrap", "off");
+ // If border: 0; -- iOS fails to open keyboard (issue #1287)
+ if (ios) te.style.border = "1px solid black";
+ disableBrowserMagic(te);
+ return div;
+ }
+
+ TextareaInput.prototype = copyObj({
+ init: function(display) {
+ var input = this, cm = this.cm;
+
+ // Wraps and hides input textarea
+ var div = this.wrapper = hiddenTextarea();
+ // The semihidden textarea that is focused when the editor is
+ // focused, and receives input.
+ var te = this.textarea = div.firstChild;
+ display.wrapper.insertBefore(div, display.wrapper.firstChild);
+
+ // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+ if (ios) te.style.width = "0px";
+
+ on(te, "input", function() {
+ if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
+ input.poll();
+ });
+
+ on(te, "paste", function(e) {
+ if (handlePaste(e, cm)) return true;
+
+ cm.state.pasteIncoming = true;
+ input.fastPoll();
+ });
+
+ function prepareCopyCut(e) {
+ if (cm.somethingSelected()) {
+ lastCopied = cm.getSelections();
+ if (input.inaccurateSelection) {
+ input.prevInput = "";
+ input.inaccurateSelection = false;
+ te.value = lastCopied.join("\n");
+ selectInput(te);
+ }
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = ranges.text;
+ if (e.type == "cut") {
+ cm.setSelections(ranges.ranges, null, sel_dontScroll);
+ } else {
+ input.prevInput = "";
+ te.value = ranges.text.join("\n");
+ selectInput(te);
+ }
+ }
+ if (e.type == "cut") cm.state.cutIncoming = true;
+ }
+ on(te, "cut", prepareCopyCut);
+ on(te, "copy", prepareCopyCut);
+
+ on(display.scroller, "paste", function(e) {
+ if (eventInWidget(display, e)) return;
+ cm.state.pasteIncoming = true;
+ input.focus();
+ });
+
+ // Prevent normal selection in the editor (we handle our own)
+ on(display.lineSpace, "selectstart", function(e) {
+ if (!eventInWidget(display, e)) e_preventDefault(e);
+ });
+
+ on(te, "compositionstart", function() {
+ var start = cm.getCursor("from");
+ if (input.composing) input.composing.range.clear()
+ input.composing = {
+ start: start,
+ range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+ };
+ });
+ on(te, "compositionend", function() {
+ if (input.composing) {
+ input.poll();
+ input.composing.range.clear();
+ input.composing = null;
+ }
+ });
+ },
+
+ prepareSelection: function() {
+ // Redraw the selection and/or cursor
+ var cm = this.cm, display = cm.display, doc = cm.doc;
+ var result = prepareSelection(cm);
+
+ // Move the hidden textarea near the cursor to prevent scrolling artifacts
+ if (cm.options.moveInputWithCursor) {
+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+ var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
+ result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+ headPos.top + lineOff.top - wrapOff.top));
+ result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+ headPos.left + lineOff.left - wrapOff.left));
+ }
+
+ return result;
+ },
+
+ showSelection: function(drawn) {
+ var cm = this.cm, display = cm.display;
+ removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+ removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+ if (drawn.teTop != null) {
+ this.wrapper.style.top = drawn.teTop + "px";
+ this.wrapper.style.left = drawn.teLeft + "px";
+ }
+ },
+
+ // Reset the input to correspond to the selection (or to be empty,
+ // when not typing and nothing is selected)
+ reset: function(typing) {
+ if (this.contextMenuPending) return;
+ var minimal, selected, cm = this.cm, doc = cm.doc;
+ if (cm.somethingSelected()) {
+ this.prevInput = "";
+ var range = doc.sel.primary();
+ minimal = hasCopyEvent &&
+ (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
+ var content = minimal ? "-" : selected || cm.getSelection();
+ this.textarea.value = content;
+ if (cm.state.focused) selectInput(this.textarea);
+ if (ie && ie_version >= 9) this.hasSelection = content;
+ } else if (!typing) {
+ this.prevInput = this.textarea.value = "";
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ }
+ this.inaccurateSelection = minimal;
+ },
+
+ getField: function() { return this.textarea; },
+
+ supportsTouch: function() { return false; },
+
+ focus: function() {
+ if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+ try { this.textarea.focus(); }
+ catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+ }
+ },
+
+ blur: function() { this.textarea.blur(); },
+
+ resetPosition: function() {
+ this.wrapper.style.top = this.wrapper.style.left = 0;
+ },
+
+ receivedFocus: function() { this.slowPoll(); },
+
+ // Poll for input changes, using the normal rate of polling. This
+ // runs as long as the editor is focused.
+ slowPoll: function() {
+ var input = this;
+ if (input.pollingFast) return;
+ input.polling.set(this.cm.options.pollInterval, function() {
+ input.poll();
+ if (input.cm.state.focused) input.slowPoll();
+ });
+ },
+
+ // When an event has just come in that is likely to add or change
+ // something in the input textarea, we poll faster, to ensure that
+ // the change appears on the screen quickly.
+ fastPoll: function() {
+ var missed = false, input = this;
+ input.pollingFast = true;
+ function p() {
+ var changed = input.poll();
+ if (!changed && !missed) {missed = true; input.polling.set(60, p);}
+ else {input.pollingFast = false; input.slowPoll();}
+ }
+ input.polling.set(20, p);
+ },
+
+ // Read input from the textarea, and update the document to match.
+ // When something is selected, it is present in the textarea, and
+ // selected (unless it is huge, in which case a placeholder is
+ // used). When nothing is selected, the cursor sits after previously
+ // seen text (can be empty), which is stored in prevInput (we must
+ // not reset the textarea when typing, because that breaks IME).
+ poll: function() {
+ var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
+ // Since this is called a *lot*, try to bail out as cheaply as
+ // possible when it is clear that nothing happened. hasSelection
+ // will be the case when there is a lot of text in the textarea,
+ // in which case reading its value would be expensive.
+ if (this.contextMenuPending || !cm.state.focused ||
+ (hasSelection(input) && !prevInput && !this.composing) ||
+ isReadOnly(cm) || cm.options.disableInput || cm.state.keySeq)
+ return false;
+
+ var text = input.value;
+ // If nothing changed, bail.
+ if (text == prevInput && !cm.somethingSelected()) return false;
+ // Work around nonsensical selection resetting in IE9/10, and
+ // inexplicable appearance of private area unicode characters on
+ // some key combos in Mac (#2689).
+ if (ie && ie_version >= 9 && this.hasSelection === text ||
+ mac && /[\uf700-\uf7ff]/.test(text)) {
+ cm.display.input.reset();
+ return false;
+ }
+
+ if (cm.doc.sel == cm.display.selForContextMenu) {
+ var first = text.charCodeAt(0);
+ if (first == 0x200b && !prevInput) prevInput = "\u200b";
+ if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
+ }
+ // Find the part of the input that is actually new
+ var same = 0, l = Math.min(prevInput.length, text.length);
+ while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
+
+ var self = this;
+ runInOp(cm, function() {
+ applyTextInput(cm, text.slice(same), prevInput.length - same,
+ null, self.composing ? "*compose" : null);
+
+ // Don't leave long text in the textarea, since it makes further polling slow
+ if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
+ else self.prevInput = text;
+
+ if (self.composing) {
+ self.composing.range.clear();
+ self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
+ {className: "CodeMirror-composing"});
+ }
+ });
+ return true;
+ },
+
+ ensurePolled: function() {
+ if (this.pollingFast && this.poll()) this.pollingFast = false;
+ },
+
+ onKeyPress: function() {
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ this.fastPoll();
+ },
+
+ onContextMenu: function(e) {
+ var input = this, cm = input.cm, display = cm.display, te = input.textarea;
+ var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
+ if (!pos || presto) return; // Opera is difficult.
+
+ // Reset the current text selection only if the click is done outside of the selection
+ // and 'resetSelectionOnContextMenu' option is true.
+ var reset = cm.options.resetSelectionOnContextMenu;
+ if (reset && cm.doc.sel.contains(pos) == -1)
+ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
+
+ var oldCSS = te.style.cssText;
+ input.wrapper.style.position = "absolute";
+ te.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
+ "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
+ (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
+ "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+ if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
+ display.input.focus();
+ if (webkit) window.scrollTo(null, oldScrollY);
+ display.input.reset();
+ // Adds "Select all" to context menu in FF
+ if (!cm.somethingSelected()) te.value = input.prevInput = " ";
+ input.contextMenuPending = true;
+ display.selForContextMenu = cm.doc.sel;
+ clearTimeout(display.detectingSelectAll);
+
+ // Select-all will be greyed out if there's nothing to select, so
+ // this adds a zero-width space so that we can later check whether
+ // it got selected.
+ function prepareSelectAllHack() {
+ if (te.selectionStart != null) {
+ var selected = cm.somethingSelected();
+ var extval = "\u200b" + (selected ? te.value : "");
+ te.value = "\u21da"; // Used to catch context-menu undo
+ te.value = extval;
+ input.prevInput = selected ? "" : "\u200b";
+ te.selectionStart = 1; te.selectionEnd = extval.length;
+ // Re-set this, in case some other handler touched the
+ // selection in the meantime.
+ display.selForContextMenu = cm.doc.sel;
+ }
+ }
+ function rehide() {
+ input.contextMenuPending = false;
+ input.wrapper.style.position = "relative";
+ te.style.cssText = oldCSS;
+ if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);
+
+ // Try to detect the user choosing select-all
+ if (te.selectionStart != null) {
+ if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
+ var i = 0, poll = function() {
+ if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+ te.selectionEnd > 0 && input.prevInput == "\u200b")
+ operation(cm, commands.selectAll)(cm);
+ else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
+ else display.input.reset();
+ };
+ display.detectingSelectAll = setTimeout(poll, 200);
+ }
+ }
+
+ if (ie && ie_version >= 9) prepareSelectAllHack();
+ if (captureRightClick) {
+ e_stop(e);
+ var mouseup = function() {
+ off(window, "mouseup", mouseup);
+ setTimeout(rehide, 20);
+ };
+ on(window, "mouseup", mouseup);
+ } else {
+ setTimeout(rehide, 50);
+ }
+ },
+
+ readOnlyChanged: function(val) {
+ if (!val) this.reset();
+ },
+
+ setUneditable: nothing,
+
+ needsContentAttribute: false
+ }, TextareaInput.prototype);
+
+ // CONTENTEDITABLE INPUT STYLE
+
+ function ContentEditableInput(cm) {
+ this.cm = cm;
+ this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
+ this.polling = new Delayed();
+ this.gracePeriod = false;
+ }
+
+ ContentEditableInput.prototype = copyObj({
+ init: function(display) {
+ var input = this, cm = input.cm;
+ var div = input.div = display.lineDiv;
+ disableBrowserMagic(div);
+
+ on(div, "paste", function(e) { handlePaste(e, cm); })
+
+ on(div, "compositionstart", function(e) {
+ var data = e.data;
+ input.composing = {sel: cm.doc.sel, data: data, startData: data};
+ if (!data) return;
+ var prim = cm.doc.sel.primary();
+ var line = cm.getLine(prim.head.line);
+ var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
+ if (found > -1 && found <= prim.head.ch)
+ input.composing.sel = simpleSelection(Pos(prim.head.line, found),
+ Pos(prim.head.line, found + data.length));
+ });
+ on(div, "compositionupdate", function(e) {
+ input.composing.data = e.data;
+ });
+ on(div, "compositionend", function(e) {
+ var ours = input.composing;
+ if (!ours) return;
+ if (e.data != ours.startData && !/\u200b/.test(e.data))
+ ours.data = e.data;
+ // Need a small delay to prevent other code (input event,
+ // selection polling) from doing damage when fired right after
+ // compositionend.
+ setTimeout(function() {
+ if (!ours.handled)
+ input.applyComposition(ours);
+ if (input.composing == ours)
+ input.composing = null;
+ }, 50);
+ });
+
+ on(div, "touchstart", function() {
+ input.forceCompositionEnd();
+ });
+
+ on(div, "input", function() {
+ if (input.composing) return;
+ if (isReadOnly(cm) || !input.pollContent())
+ runInOp(input.cm, function() {regChange(cm);});
+ });
+
+ function onCopyCut(e) {
+ if (cm.somethingSelected()) {
+ lastCopied = cm.getSelections();
+ if (e.type == "cut") cm.replaceSelection("", null, "cut");
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = ranges.text;
+ if (e.type == "cut") {
+ cm.operation(function() {
+ cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+ cm.replaceSelection("", null, "cut");
+ });
+ }
+ }
+ // iOS exposes the clipboard API, but seems to discard content inserted into it
+ if (e.clipboardData && !ios) {
+ e.preventDefault();
+ e.clipboardData.clearData();
+ e.clipboardData.setData("text/plain", lastCopied.join("\n"));
+ } else {
+ // Old-fashioned briefly-focus-a-textarea hack
+ var kludge = hiddenTextarea(), te = kludge.firstChild;
+ cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+ te.value = lastCopied.join("\n");
+ var hadFocus = document.activeElement;
+ selectInput(te);
+ setTimeout(function() {
+ cm.display.lineSpace.removeChild(kludge);
+ hadFocus.focus();
+ }, 50);
+ }
+ }
+ on(div, "copy", onCopyCut);
+ on(div, "cut", onCopyCut);
+ },
+
+ prepareSelection: function() {
+ var result = prepareSelection(this.cm, false);
+ result.focus = this.cm.state.focused;
+ return result;
+ },
+
+ showSelection: function(info) {
+ if (!info || !this.cm.display.view.length) return;
+ if (info.focus) this.showPrimarySelection();
+ this.showMultipleSelections(info);
+ },
+
+ showPrimarySelection: function() {
+ var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
+ var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
+ var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
+ if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+ cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+ cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
+ return;
+
+ var start = posToDOM(this.cm, prim.from());
+ var end = posToDOM(this.cm, prim.to());
+ if (!start && !end) return;
+
+ var view = this.cm.display.view;
+ var old = sel.rangeCount && sel.getRangeAt(0);
+ if (!start) {
+ start = {node: view[0].measure.map[2], offset: 0};
+ } else if (!end) { // FIXME dangerously hacky
+ var measure = view[view.length - 1].measure;
+ var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+ end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
+ }
+
+ try { var rng = range(start.node, start.offset, end.offset, end.node); }
+ catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+ if (rng) {
+ sel.removeAllRanges();
+ sel.addRange(rng);
+ if (old && sel.anchorNode == null) sel.addRange(old);
+ else if (gecko) this.startGracePeriod();
+ }
+ this.rememberSelection();
+ },
+
+ startGracePeriod: function() {
+ var input = this;
+ clearTimeout(this.gracePeriod);
+ this.gracePeriod = setTimeout(function() {
+ input.gracePeriod = false;
+ if (input.selectionChanged())
+ input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
+ }, 20);
+ },
+
+ showMultipleSelections: function(info) {
+ removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+ removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+ },
+
+ rememberSelection: function() {
+ var sel = window.getSelection();
+ this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
+ this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
+ },
+
+ selectionInEditor: function() {
+ var sel = window.getSelection();
+ if (!sel.rangeCount) return false;
+ var node = sel.getRangeAt(0).commonAncestorContainer;
+ return contains(this.div, node);
+ },
+
+ focus: function() {
+ if (this.cm.options.readOnly != "nocursor") this.div.focus();
+ },
+ blur: function() { this.div.blur(); },
+ getField: function() { return this.div; },
+
+ supportsTouch: function() { return true; },
+
+ receivedFocus: function() {
+ var input = this;
+ if (this.selectionInEditor())
+ this.pollSelection();
+ else
+ runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });
+
+ function poll() {
+ if (input.cm.state.focused) {
+ input.pollSelection();
+ input.polling.set(input.cm.options.pollInterval, poll);
+ }
+ }
+ this.polling.set(this.cm.options.pollInterval, poll);
+ },
+
+ selectionChanged: function() {
+ var sel = window.getSelection();
+ return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+ sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
+ },
+
+ pollSelection: function() {
+ if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
+ var sel = window.getSelection(), cm = this.cm;
+ this.rememberSelection();
+ var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+ var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+ if (anchor && head) runInOp(cm, function() {
+ setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
+ if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
+ });
+ }
+ },
+
+ pollContent: function() {
+ var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
+ var from = sel.from(), to = sel.to();
+ if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;
+
+ var fromIndex;
+ if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+ var fromLine = lineNo(display.view[0].line);
+ var fromNode = display.view[0].node;
+ } else {
+ var fromLine = lineNo(display.view[fromIndex].line);
+ var fromNode = display.view[fromIndex - 1].node.nextSibling;
+ }
+ var toIndex = findViewIndex(cm, to.line);
+ if (toIndex == display.view.length - 1) {
+ var toLine = display.viewTo - 1;
+ var toNode = display.lineDiv.lastChild;
+ } else {
+ var toLine = lineNo(display.view[toIndex + 1].line) - 1;
+ var toNode = display.view[toIndex + 1].node.previousSibling;
+ }
+
+ var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
+ var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
+ while (newText.length > 1 && oldText.length > 1) {
+ if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
+ else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
+ else break;
+ }
+
+ var cutFront = 0, cutEnd = 0;
+ var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
+ while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+ ++cutFront;
+ var newBot = lst(newText), oldBot = lst(oldText);
+ var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+ oldBot.length - (oldText.length == 1 ? cutFront : 0));
+ while (cutEnd < maxCutEnd &&
+ newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+ ++cutEnd;
+
+ newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
+ newText[0] = newText[0].slice(cutFront);
+
+ var chFrom = Pos(fromLine, cutFront);
+ var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
+ if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+ replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+ return true;
+ }
+ },
+
+ ensurePolled: function() {
+ this.forceCompositionEnd();
+ },
+ reset: function() {
+ this.forceCompositionEnd();
+ },
+ forceCompositionEnd: function() {
+ if (!this.composing || this.composing.handled) return;
+ this.applyComposition(this.composing);
+ this.composing.handled = true;
+ this.div.blur();
+ this.div.focus();
+ },
+ applyComposition: function(composing) {
+ if (isReadOnly(this.cm))
+ operation(this.cm, regChange)(this.cm)
+ else if (composing.data && composing.data != composing.startData)
+ operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
+ },
+
+ setUneditable: function(node) {
+ node.contentEditable = "false"
+ },
+
+ onKeyPress: function(e) {
+ e.preventDefault();
+ if (!isReadOnly(this.cm))
+ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
+ },
+
+ readOnlyChanged: function(val) {
+ this.div.contentEditable = String(val != "nocursor")
+ },
+
+ onContextMenu: nothing,
+ resetPosition: nothing,
+
+ needsContentAttribute: true
+ }, ContentEditableInput.prototype);
+
+ function posToDOM(cm, pos) {
+ var view = findViewForLine(cm, pos.line);
+ if (!view || view.hidden) return null;
+ var line = getLine(cm.doc, pos.line);
+ var info = mapFromLineView(view, line, pos.line);
+
+ var order = getOrder(line), side = "left";
+ if (order) {
+ var partPos = getBidiPartAt(order, pos.ch);
+ side = partPos % 2 ? "right" : "left";
+ }
+ var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+ result.offset = result.collapse == "right" ? result.end : result.start;
+ return result;
+ }
+
+ function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }
+
+ function domToPos(cm, node, offset) {
+ var lineNode;
+ if (node == cm.display.lineDiv) {
+ lineNode = cm.display.lineDiv.childNodes[offset];
+ if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
+ node = null; offset = 0;
+ } else {
+ for (lineNode = node;; lineNode = lineNode.parentNode) {
+ if (!lineNode || lineNode == cm.display.lineDiv) return null;
+ if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
+ }
+ }
+ for (var i = 0; i < cm.display.view.length; i++) {
+ var lineView = cm.display.view[i];
+ if (lineView.node == lineNode)
+ return locateNodeInLineView(lineView, node, offset);
+ }
+ }
+
+ function locateNodeInLineView(lineView, node, offset) {
+ var wrapper = lineView.text.firstChild, bad = false;
+ if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
+ if (node == wrapper) {
+ bad = true;
+ node = wrapper.childNodes[offset];
+ offset = 0;
+ if (!node) {
+ var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+ return badPos(Pos(lineNo(line), line.text.length), bad);
+ }
+ }
+
+ var textNode = node.nodeType == 3 ? node : null, topNode = node;
+ if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+ textNode = node.firstChild;
+ if (offset) offset = textNode.nodeValue.length;
+ }
+ while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
+ var measure = lineView.measure, maps = measure.maps;
+
+ function find(textNode, topNode, offset) {
+ for (var i = -1; i < (maps ? maps.length : 0); i++) {
+ var map = i < 0 ? measure.map : maps[i];
+ for (var j = 0; j < map.length; j += 3) {
+ var curNode = map[j + 2];
+ if (curNode == textNode || curNode == topNode) {
+ var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+ var ch = map[j] + offset;
+ if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
+ return Pos(line, ch);
+ }
+ }
+ }
+ }
+ var found = find(textNode, topNode, offset);
+ if (found) return badPos(found, bad);
+
+ // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+ for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+ found = find(after, after.firstChild, 0);
+ if (found)
+ return badPos(Pos(found.line, found.ch - dist), bad);
+ else
+ dist += after.textContent.length;
+ }
+ for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
+ found = find(before, before.firstChild, -1);
+ if (found)
+ return badPos(Pos(found.line, found.ch + dist), bad);
+ else
+ dist += after.textContent.length;
+ }
+ }
+
+ function domTextBetween(cm, from, to, fromLine, toLine) {
+ var text = "", closing = false, lineSep = cm.doc.lineSeparator();
+ function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
+ function walk(node) {
+ if (node.nodeType == 1) {
+ var cmText = node.getAttribute("cm-text");
+ if (cmText != null) {
+ if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
+ text += cmText;
+ return;
+ }
+ var markerID = node.getAttribute("cm-marker"), range;
+ if (markerID) {
+ var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
+ if (found.length && (range = found[0].find()))
+ text += getBetween(cm.doc, range.from, range.to).join(lineSep);
+ return;
+ }
+ if (node.getAttribute("contenteditable") == "false") return;
+ for (var i = 0; i < node.childNodes.length; i++)
+ walk(node.childNodes[i]);
+ if (/^(pre|div|p)$/i.test(node.nodeName))
+ closing = true;
+ } else if (node.nodeType == 3) {
+ var val = node.nodeValue;
+ if (!val) return;
+ if (closing) {
+ text += lineSep;
+ closing = false;
+ }
+ text += val;
+ }
+ }
+ for (;;) {
+ walk(from);
+ if (from == to) break;
+ from = from.nextSibling;
+ }
+ return text;
+ }
+
+ CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
+
+ // SELECTION / CURSOR
+
+ // Selection objects are immutable. A new one is created every time
+ // the selection changes. A selection is one or more non-overlapping
+ // (and non-touching) ranges, sorted, and an integer that indicates
+ // which one is the primary selection (the one that's scrolled into
+ // view, that getCursor returns, etc).
+ function Selection(ranges, primIndex) {
+ this.ranges = ranges;
+ this.primIndex = primIndex;
+ }
+
+ Selection.prototype = {
+ primary: function() { return this.ranges[this.primIndex]; },
+ equals: function(other) {
+ if (other == this) return true;
+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var here = this.ranges[i], there = other.ranges[i];
+ if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
+ }
+ return true;
+ },
+ deepCopy: function() {
+ for (var out = [], i = 0; i < this.ranges.length; i++)
+ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
+ return new Selection(out, this.primIndex);
+ },
+ somethingSelected: function() {
+ for (var i = 0; i < this.ranges.length; i++)
+ if (!this.ranges[i].empty()) return true;
+ return false;
+ },
+ contains: function(pos, end) {
+ if (!end) end = pos;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var range = this.ranges[i];
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+ return i;
+ }
+ return -1;
+ }
+ };
+
+ function Range(anchor, head) {
+ this.anchor = anchor; this.head = head;
+ }
+
+ Range.prototype = {
+ from: function() { return minPos(this.anchor, this.head); },
+ to: function() { return maxPos(this.anchor, this.head); },
+ empty: function() {
+ return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
+ }
+ };
+
+ // Take an unsorted, potentially overlapping set of ranges, and
+ // build a selection out of it. 'Consumes' ranges array (modifying
+ // it).
+ function normalizeSelection(ranges, primIndex) {
+ var prim = ranges[primIndex];
+ ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
+ primIndex = indexOf(ranges, prim);
+ for (var i = 1; i < ranges.length; i++) {
+ var cur = ranges[i], prev = ranges[i - 1];
+ if (cmp(prev.to(), cur.from()) >= 0) {
+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
+ if (i <= primIndex) --primIndex;
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+ }
+ }
+ return new Selection(ranges, primIndex);
+ }
+
+ function simpleSelection(anchor, head) {
+ return new Selection([new Range(anchor, head || anchor)], 0);
+ }
+
+ // Most of the external API clips given positions to make sure they
+ // actually exist within the document.
+ function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
+ function clipPos(doc, pos) {
+ if (pos.line < doc.first) return Pos(doc.first, 0);
+ var last = doc.first + doc.size - 1;
+ if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
+ return clipToLen(pos, getLine(doc, pos.line).text.length);
+ }
+ function clipToLen(pos, linelen) {
+ var ch = pos.ch;
+ if (ch == null || ch > linelen) return Pos(pos.line, linelen);
+ else if (ch < 0) return Pos(pos.line, 0);
+ else return pos;
+ }
+ function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
+ function clipPosArray(doc, array) {
+ for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
+ return out;
+ }
+
+ // SELECTION UPDATES
+
+ // The 'scroll' parameter given to many of these indicated whether
+ // the new cursor position should be scrolled into view after
+ // modifying the selection.
+
+ // If shift is held or the extend flag is set, extends a range to
+ // include a given position (and optionally a second position).
+ // Otherwise, simply returns the range between the given positions.
+ // Used for cursor motion and such.
+ function extendRange(doc, range, head, other) {
+ if (doc.cm && doc.cm.display.shift || doc.extend) {
+ var anchor = range.anchor;
+ if (other) {
+ var posBefore = cmp(head, anchor) < 0;
+ if (posBefore != (cmp(other, anchor) < 0)) {
+ anchor = head;
+ head = other;
+ } else if (posBefore != (cmp(head, other) < 0)) {
+ head = other;
+ }
+ }
+ return new Range(anchor, head);
+ } else {
+ return new Range(other || head, head);
+ }
+ }
+
+ // Extend the primary selection range, discard the rest.
+ function extendSelection(doc, head, other, options) {
+ setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
+ }
+
+ // Extend all selections (pos is an array of selections with length
+ // equal the number of selections)
+ function extendSelections(doc, heads, options) {
+ for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
+ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
+ var newSel = normalizeSelection(out, doc.sel.primIndex);
+ setSelection(doc, newSel, options);
+ }
+
+ // Updates a single range in the selection.
+ function replaceOneSelection(doc, i, range, options) {
+ var ranges = doc.sel.ranges.slice(0);
+ ranges[i] = range;
+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
+ }
+
+ // Reset the selection to a single range.
+ function setSimpleSelection(doc, anchor, head, options) {
+ setSelection(doc, simpleSelection(anchor, head), options);
+ }
+
+ // Give beforeSelectionChange handlers a change to influence a
+ // selection update.
+ function filterSelectionChange(doc, sel) {
+ var obj = {
+ ranges: sel.ranges,
+ update: function(ranges) {
+ this.ranges = [];
+ for (var i = 0; i < ranges.length; i++)
+ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+ clipPos(doc, ranges[i].head));
+ }
+ };
+ signal(doc, "beforeSelectionChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
+ if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
+ else return sel;
+ }
+
+ function setSelectionReplaceHistory(doc, sel, options) {
+ var done = doc.history.done, last = lst(done);
+ if (last && last.ranges) {
+ done[done.length - 1] = sel;
+ setSelectionNoUndo(doc, sel, options);
+ } else {
+ setSelection(doc, sel, options);
+ }
+ }
+
+ // Set a new selection.
+ function setSelection(doc, sel, options) {
+ setSelectionNoUndo(doc, sel, options);
+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
+ }
+
+ function setSelectionNoUndo(doc, sel, options) {
+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+ sel = filterSelectionChange(doc, sel);
+
+ var bias = options && options.bias ||
+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+ if (!(options && options.scroll === false) && doc.cm)
+ ensureCursorVisible(doc.cm);
+ }
+
+ function setSelectionInner(doc, sel) {
+ if (sel.equals(doc.sel)) return;
+
+ doc.sel = sel;
+
+ if (doc.cm) {
+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
+ signalCursorActivity(doc.cm);
+ }
+ signalLater(doc, "cursorActivity", doc);
+ }
+
+ // Verify that the selection does not partially select any atomic
+ // marked ranges.
+ function reCheckSelection(doc) {
+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
+ }
+
+ // Return a selection that does not partially select any atomic
+ // ranges.
+ function skipAtomicInSelection(doc, sel, bias, mayClear) {
+ var out;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
+ var newHead = skipAtomic(doc, range.head, bias, mayClear);
+ if (out || newAnchor != range.anchor || newHead != range.head) {
+ if (!out) out = sel.ranges.slice(0, i);
+ out[i] = new Range(newAnchor, newHead);
+ }
+ }
+ return out ? normalizeSelection(out, sel.primIndex) : sel;
+ }
+
+ // Ensure a given position is not inside an atomic range.
+ function skipAtomic(doc, pos, bias, mayClear) {
+ var flipped = false, curPos = pos;
+ var dir = bias || 1;
+ doc.cantEdit = false;
+ search: for (;;) {
+ var line = getLine(doc, curPos.line);
+ if (line.markedSpans) {
+ for (var i = 0; i < line.markedSpans.length; ++i) {
+ var sp = line.markedSpans[i], m = sp.marker;
+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
+ (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
+ if (mayClear) {
+ signal(m, "beforeCursorEnter");
+ if (m.explicitlyCleared) {
+ if (!line.markedSpans) break;
+ else {--i; continue;}
+ }
+ }
+ if (!m.atomic) continue;
+ var newPos = m.find(dir < 0 ? -1 : 1);
+ if (cmp(newPos, curPos) == 0) {
+ newPos.ch += dir;
+ if (newPos.ch < 0) {
+ if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
+ else newPos = null;
+ } else if (newPos.ch > line.text.length) {
+ if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
+ else newPos = null;
+ }
+ if (!newPos) {
+ if (flipped) {
+ // Driven in a corner -- no valid cursor position found at all
+ // -- try again *with* clearing, if we didn't already
+ if (!mayClear) return skipAtomic(doc, pos, bias, true);
+ // Otherwise, turn off editing until further notice, and return the start of the doc
+ doc.cantEdit = true;
+ return Pos(doc.first, 0);
+ }
+ flipped = true; newPos = pos; dir = -dir;
+ }
+ }
+ curPos = newPos;
+ continue search;
+ }
+ }
+ }
+ return curPos;
+ }
+ }
+
+ // SELECTION DRAWING
+
+ function updateSelection(cm) {
+ cm.display.input.showSelection(cm.display.input.prepareSelection());
+ }
+
+ function prepareSelection(cm, primary) {
+ var doc = cm.doc, result = {};
+ var curFragment = result.cursors = document.createDocumentFragment();
+ var selFragment = result.selection = document.createDocumentFragment();
+
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ if (primary === false && i == doc.sel.primIndex) continue;
+ var range = doc.sel.ranges[i];
+ var collapsed = range.empty();
+ if (collapsed || cm.options.showCursorWhenSelecting)
+ drawSelectionCursor(cm, range.head, curFragment);
+ if (!collapsed)
+ drawSelectionRange(cm, range, selFragment);
+ }
+ return result;
+ }
+
+ // Draws a cursor for the given range
+ function drawSelectionCursor(cm, head, output) {
+ var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
+
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+ cursor.style.left = pos.left + "px";
+ cursor.style.top = pos.top + "px";
+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+ if (pos.other) {
+ // Secondary cursor, shown when on a 'jump' in bi-directional text
+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
+ otherCursor.style.display = "";
+ otherCursor.style.left = pos.other.left + "px";
+ otherCursor.style.top = pos.other.top + "px";
+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
+ }
+ }
+
+ // Draws the given range as a highlighted selection
+ function drawSelectionRange(cm, range, output) {
+ var display = cm.display, doc = cm.doc;
+ var fragment = document.createDocumentFragment();
+ var padding = paddingH(cm.display), leftSide = padding.left;
+ var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
+
+ function add(left, top, width, bottom) {
+ if (top < 0) top = 0;
+ top = Math.round(top);
+ bottom = Math.round(bottom);
+ fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
+ "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
+ "px; height: " + (bottom - top) + "px"));
+ }
+
+ function drawForLine(line, fromArg, toArg) {
+ var lineObj = getLine(doc, line);
+ var lineLen = lineObj.text.length;
+ var start, end;
+ function coords(ch, bias) {
+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
+ }
+
+ iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
+ var leftPos = coords(from, "left"), rightPos, left, right;
+ if (from == to) {
+ rightPos = leftPos;
+ left = right = leftPos.left;
+ } else {
+ rightPos = coords(to - 1, "right");
+ if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
+ left = leftPos.left;
+ right = rightPos.right;
+ }
+ if (fromArg == null && from == 0) left = leftSide;
+ if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
+ add(left, leftPos.top, null, leftPos.bottom);
+ left = leftSide;
+ if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
+ }
+ if (toArg == null && to == lineLen) right = rightSide;
+ if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
+ start = leftPos;
+ if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
+ end = rightPos;
+ if (left < leftSide + 1) left = leftSide;
+ add(left, rightPos.top, right - left, rightPos.bottom);
+ });
+ return {start: start, end: end};
+ }
+
+ var sFrom = range.from(), sTo = range.to();
+ if (sFrom.line == sTo.line) {
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+ } else {
+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
+ var singleVLine = visualLine(fromLine) == visualLine(toLine);
+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
+ if (singleVLine) {
+ if (leftEnd.top < rightStart.top - 2) {
+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+ } else {
+ add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
+ }
+ }
+ if (leftEnd.bottom < rightStart.top)
+ add(leftSide, leftEnd.bottom, null, rightStart.top);
+ }
+
+ output.appendChild(fragment);
+ }
+
+ // Cursor-blinking
+ function restartBlink(cm) {
+ if (!cm.state.focused) return;
+ var display = cm.display;
+ clearInterval(display.blinker);
+ var on = true;
+ display.cursorDiv.style.visibility = "";
+ if (cm.options.cursorBlinkRate > 0)
+ display.blinker = setInterval(function() {
+ display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
+ }, cm.options.cursorBlinkRate);
+ else if (cm.options.cursorBlinkRate < 0)
+ display.cursorDiv.style.visibility = "hidden";
+ }
+
+ // HIGHLIGHT WORKER
+
+ function startWorker(cm, time) {
+ if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+ cm.state.highlight.set(time, bind(highlightWorker, cm));
+ }
+
+ function highlightWorker(cm) {
+ var doc = cm.doc;
+ if (doc.frontier < doc.first) doc.frontier = doc.first;
+ if (doc.frontier >= cm.display.viewTo) return;
+ var end = +new Date + cm.options.workTime;
+ var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
+ var changedLines = [];
+
+ doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
+ if (doc.frontier >= cm.display.viewFrom) { // Visible
+ var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength;
+ var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true);
+ line.styles = highlighted.styles;
+ var oldCls = line.styleClasses, newCls = highlighted.classes;
+ if (newCls) line.styleClasses = newCls;
+ else if (oldCls) line.styleClasses = null;
+ var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+ oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
+ for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
+ if (ischange) changedLines.push(doc.frontier);
+ line.stateAfter = tooLong ? state : copyState(doc.mode, state);
+ } else {
+ if (line.text.length <= cm.options.maxHighlightLength)
+ processLine(cm, line.text, state);
+ line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
+ }
+ ++doc.frontier;
+ if (+new Date > end) {
+ startWorker(cm, cm.options.workDelay);
+ return true;
+ }
+ });
+ if (changedLines.length) runInOp(cm, function() {
+ for (var i = 0; i < changedLines.length; i++)
+ regLineChange(cm, changedLines[i], "text");
+ });
+ }
+
+ // Finds the line to start with when starting a parse. Tries to
+ // find a line with a stateAfter, so that it can start with a
+ // valid state. If that fails, it returns the line with the
+ // smallest indentation, which tends to need the least context to
+ // parse correctly.
+ function findStartLine(cm, n, precise) {
+ var minindent, minline, doc = cm.doc;
+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+ for (var search = n; search > lim; --search) {
+ if (search <= doc.first) return doc.first;
+ var line = getLine(doc, search - 1);
+ if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
+ var indented = countColumn(line.text, null, cm.options.tabSize);
+ if (minline == null || minindent > indented) {
+ minline = search - 1;
+ minindent = indented;
+ }
+ }
+ return minline;
+ }
+
+ function getStateBefore(cm, n, precise) {
+ var doc = cm.doc, display = cm.display;
+ if (!doc.mode.startState) return true;
+ var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
+ if (!state) state = startState(doc.mode);
+ else state = copyState(doc.mode, state);
+ doc.iter(pos, n, function(line) {
+ processLine(cm, line.text, state);
+ var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
+ line.stateAfter = save ? copyState(doc.mode, state) : null;
+ ++pos;
+ });
+ if (precise) doc.frontier = pos;
+ return state;
+ }
+
+ // POSITION MEASUREMENT
+
+ function paddingTop(display) {return display.lineSpace.offsetTop;}
+ function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
+ function paddingH(display) {
+ if (display.cachedPaddingH) return display.cachedPaddingH;
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
+ var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
+ if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
+ return data;
+ }
+
+ function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
+ function displayWidth(cm) {
+ return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
+ }
+ function displayHeight(cm) {
+ return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
+ }
+
+ // Ensure the lineView.wrapping.heights array is populated. This is
+ // an array of bottom offsets for the lines that make up a drawn
+ // line. When lineWrapping is on, there might be more than one
+ // height.
+ function ensureLineHeights(cm, lineView, rect) {
+ var wrapping = cm.options.lineWrapping;
+ var curWidth = wrapping && displayWidth(cm);
+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+ var heights = lineView.measure.heights = [];
+ if (wrapping) {
+ lineView.measure.width = curWidth;
+ var rects = lineView.text.firstChild.getClientRects();
+ for (var i = 0; i < rects.length - 1; i++) {
+ var cur = rects[i], next = rects[i + 1];
+ if (Math.abs(cur.bottom - next.bottom) > 2)
+ heights.push((cur.bottom + next.top) / 2 - rect.top);
+ }
+ }
+ heights.push(rect.bottom - rect.top);
+ }
+ }
+
+ // Find a line map (mapping character offsets to text nodes) and a
+ // measurement cache for the given line number. (A line view might
+ // contain multiple lines when collapsed ranges are present.)
+ function mapFromLineView(lineView, line, lineN) {
+ if (lineView.line == line)
+ return {map: lineView.measure.map, cache: lineView.measure.cache};
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineView.rest[i] == line)
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineNo(lineView.rest[i]) > lineN)
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
+ }
+
+ // Render a line into the hidden node display.externalMeasured. Used
+ // when measurement is needed for a line that's not in the viewport.
+ function updateExternalMeasurement(cm, line) {
+ line = visualLine(line);
+ var lineN = lineNo(line);
+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
+ view.lineN = lineN;
+ var built = view.built = buildLineContent(cm, view);
+ view.text = built.pre;
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+ return view;
+ }
+
+ // Get a {top, bottom, left, right} box (in line-local coordinates)
+ // for a given character.
+ function measureChar(cm, line, ch, bias) {
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
+ }
+
+ // Find a line view that corresponds to the given line number.
+ function findViewForLine(cm, lineN) {
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+ return cm.display.view[findViewIndex(cm, lineN)];
+ var ext = cm.display.externalMeasured;
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+ return ext;
+ }
+
+ // Measurement can be split in two steps, the set-up work that
+ // applies to the whole line, and the measurement of the actual
+ // character. Functions like coordsChar, that need to do a lot of
+ // measurements in a row, can thus ensure that the set-up work is
+ // only done once.
+ function prepareMeasureForLine(cm, line) {
+ var lineN = lineNo(line);
+ var view = findViewForLine(cm, lineN);
+ if (view && !view.text) {
+ view = null;
+ } else if (view && view.changes) {
+ updateLineForChanges(cm, view, lineN, getDimensions(cm));
+ cm.curOp.forceUpdate = true;
+ }
+ if (!view)
+ view = updateExternalMeasurement(cm, line);
+
+ var info = mapFromLineView(view, line, lineN);
+ return {
+ line: line, view: view, rect: null,
+ map: info.map, cache: info.cache, before: info.before,
+ hasHeights: false
+ };
+ }
+
+ // Given a prepared measurement object, measures the position of an
+ // actual character (or fetches it from the cache).
+ function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+ if (prepared.before) ch = -1;
+ var key = ch + (bias || ""), found;
+ if (prepared.cache.hasOwnProperty(key)) {
+ found = prepared.cache[key];
+ } else {
+ if (!prepared.rect)
+ prepared.rect = prepared.view.text.getBoundingClientRect();
+ if (!prepared.hasHeights) {
+ ensureLineHeights(cm, prepared.view, prepared.rect);
+ prepared.hasHeights = true;
+ }
+ found = measureCharInner(cm, prepared, ch, bias);
+ if (!found.bogus) prepared.cache[key] = found;
+ }
+ return {left: found.left, right: found.right,
+ top: varHeight ? found.rtop : found.top,
+ bottom: varHeight ? found.rbottom : found.bottom};
+ }
+
+ var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
+
+ function nodeAndOffsetInLineMap(map, ch, bias) {
+ var node, start, end, collapse;
+ // First, search the line map for the text node corresponding to,
+ // or closest to, the target character.
+ for (var i = 0; i < map.length; i += 3) {
+ var mStart = map[i], mEnd = map[i + 1];
+ if (ch < mStart) {
+ start = 0; end = 1;
+ collapse = "left";
+ } else if (ch < mEnd) {
+ start = ch - mStart;
+ end = start + 1;
+ } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+ end = mEnd - mStart;
+ start = end - 1;
+ if (ch >= mEnd) collapse = "right";
+ }
+ if (start != null) {
+ node = map[i + 2];
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+ collapse = bias;
+ if (bias == "left" && start == 0)
+ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+ node = map[(i -= 3) + 2];
+ collapse = "left";
+ }
+ if (bias == "right" && start == mEnd - mStart)
+ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+ node = map[(i += 3) + 2];
+ collapse = "right";
+ }
+ break;
+ }
+ }
+ return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
+ }
+
+ function measureCharInner(cm, prepared, ch, bias) {
+ var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+ var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
+
+ var rect;
+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+ for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+ while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
+ while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
+ if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {
+ rect = node.parentNode.getBoundingClientRect();
+ } else if (ie && cm.options.lineWrapping) {
+ var rects = range(node, start, end).getClientRects();
+ if (rects.length)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else
+ rect = nullRect;
+ } else {
+ rect = range(node, start, end).getBoundingClientRect() || nullRect;
+ }
+ if (rect.left || rect.right || start == 0) break;
+ end = start;
+ start = start - 1;
+ collapse = "right";
+ }
+ if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
+ } else { // If it is a widget, simply get the box for the whole widget.
+ if (start > 0) collapse = bias = "right";
+ var rects;
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else
+ rect = node.getBoundingClientRect();
+ }
+ if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+ var rSpan = node.parentNode.getClientRects()[0];
+ if (rSpan)
+ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
+ else
+ rect = nullRect;
+ }
+
+ var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
+ var mid = (rtop + rbot) / 2;
+ var heights = prepared.view.measure.heights;
+ for (var i = 0; i < heights.length - 1; i++)
+ if (mid < heights[i]) break;
+ var top = i ? heights[i - 1] : 0, bot = heights[i];
+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+ top: top, bottom: bot};
+ if (!rect.left && !rect.right) result.bogus = true;
+ if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
+
+ return result;
+ }
+
+ // Work around problem with bounding client rects on ranges being
+ // returned incorrectly when zoomed on IE10 and below.
+ function maybeUpdateRectForZooming(measure, rect) {
+ if (!window.screen || screen.logicalXDPI == null ||
+ screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+ return rect;
+ var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+ var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+ return {left: rect.left * scaleX, right: rect.right * scaleX,
+ top: rect.top * scaleY, bottom: rect.bottom * scaleY};
+ }
+
+ function clearLineMeasurementCacheFor(lineView) {
+ if (lineView.measure) {
+ lineView.measure.cache = {};
+ lineView.measure.heights = null;
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+ lineView.measure.caches[i] = {};
+ }
+ }
+
+ function clearLineMeasurementCache(cm) {
+ cm.display.externalMeasure = null;
+ removeChildren(cm.display.lineMeasure);
+ for (var i = 0; i < cm.display.view.length; i++)
+ clearLineMeasurementCacheFor(cm.display.view[i]);
+ }
+
+ function clearCaches(cm) {
+ clearLineMeasurementCache(cm);
+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
+ if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
+ cm.display.lineNumChars = null;
+ }
+
+ function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
+ function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
+
+ // Converts a {top, bottom, left, right} box from line-local
+ // coordinates into another coordinate system. Context may be one of
+ // "line", "div" (display.lineDiv), "local"/null (editor), "window",
+ // or "page".
+ function intoCoordSystem(cm, lineObj, rect, context) {
+ if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
+ var size = widgetHeight(lineObj.widgets[i]);
+ rect.top += size; rect.bottom += size;
+ }
+ if (context == "line") return rect;
+ if (!context) context = "local";
+ var yOff = heightAtLine(lineObj);
+ if (context == "local") yOff += paddingTop(cm.display);
+ else yOff -= cm.display.viewOffset;
+ if (context == "page" || context == "window") {
+ var lOff = cm.display.lineSpace.getBoundingClientRect();
+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+ rect.left += xOff; rect.right += xOff;
+ }
+ rect.top += yOff; rect.bottom += yOff;
+ return rect;
+ }
+
+ // Coverts a box from "div" coords to another coordinate system.
+ // Context may be "window", "page", "div", or "local"/null.
+ function fromCoordSystem(cm, coords, context) {
+ if (context == "div") return coords;
+ var left = coords.left, top = coords.top;
+ // First move into "page" coordinate system
+ if (context == "page") {
+ left -= pageScrollX();
+ top -= pageScrollY();
+ } else if (context == "local" || !context) {
+ var localBox = cm.display.sizer.getBoundingClientRect();
+ left += localBox.left;
+ top += localBox.top;
+ }
+
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+ return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
+ }
+
+ function charCoords(cm, pos, context, lineObj, bias) {
+ if (!lineObj) lineObj = getLine(cm.doc, pos.line);
+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
+ }
+
+ // Returns a box for a given cursor position, which may have an
+ // 'other' property containing the position of the secondary cursor
+ // on a bidi boundary.
+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+ lineObj = lineObj || getLine(cm.doc, pos.line);
+ if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
+ function get(ch, right) {
+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
+ if (right) m.left = m.right; else m.right = m.left;
+ return intoCoordSystem(cm, lineObj, m, context);
+ }
+ function getBidi(ch, partPos) {
+ var part = order[partPos], right = part.level % 2;
+ if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
+ part = order[--partPos];
+ ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
+ right = true;
+ } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
+ part = order[++partPos];
+ ch = bidiLeft(part) - part.level % 2;
+ right = false;
+ }
+ if (right && ch == part.to && ch > part.from) return get(ch - 1);
+ return get(ch, right);
+ }
+ var order = getOrder(lineObj), ch = pos.ch;
+ if (!order) return get(ch);
+ var partPos = getBidiPartAt(order, ch);
+ var val = getBidi(ch, partPos);
+ if (bidiOther != null) val.other = getBidi(ch, bidiOther);
+ return val;
+ }
+
+ // Used to cheaply estimate the coordinates for a position. Used for
+ // intermediate scroll updates.
+ function estimateCoords(cm, pos) {
+ var left = 0, pos = clipPos(cm.doc, pos);
+ if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
+ var lineObj = getLine(cm.doc, pos.line);
+ var top = heightAtLine(lineObj) + paddingTop(cm.display);
+ return {left: left, right: left, top: top, bottom: top + lineObj.height};
+ }
+
+ // Positions returned by coordsChar contain some extra information.
+ // xRel is the relative x position of the input coordinates compared
+ // to the found position (so xRel > 0 means the coordinates are to
+ // the right of the character position, for example). When outside
+ // is true, that means the coordinates lie outside the line's
+ // vertical range.
+ function PosWithInfo(line, ch, outside, xRel) {
+ var pos = Pos(line, ch);
+ pos.xRel = xRel;
+ if (outside) pos.outside = true;
+ return pos;
+ }
+
+ // Compute the character position closest to the given coordinates.
+ // Input must be lineSpace-local ("div" coordinate system).
+ function coordsChar(cm, x, y) {
+ var doc = cm.doc;
+ y += cm.display.viewOffset;
+ if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
+ if (lineN > last)
+ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
+ if (x < 0) x = 0;
+
+ var lineObj = getLine(doc, lineN);
+ for (;;) {
+ var found = coordsCharInner(cm, lineObj, lineN, x, y);
+ var merged = collapsedSpanAtEnd(lineObj);
+ var mergedPos = merged && merged.find(0, true);
+ if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+ lineN = lineNo(lineObj = mergedPos.to.line);
+ else
+ return found;
+ }
+ }
+
+ function coordsCharInner(cm, lineObj, lineNo, x, y) {
+ var innerOff = y - heightAtLine(lineObj);
+ var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+
+ function getX(ch) {
+ var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
+ wrongLine = true;
+ if (innerOff > sp.bottom) return sp.left - adjust;
+ else if (innerOff < sp.top) return sp.left + adjust;
+ else wrongLine = false;
+ return sp.left;
+ }
+
+ var bidi = getOrder(lineObj), dist = lineObj.text.length;
+ var from = lineLeft(lineObj), to = lineRight(lineObj);
+ var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
+
+ if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
+ // Do a binary search between these bounds.
+ for (;;) {
+ if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
+ var ch = x < fromX || x - fromX <= toX - x ? from : to;
+ var xDiff = x - (ch == from ? fromX : toX);
+ while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
+ var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
+ xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
+ return pos;
+ }
+ var step = Math.ceil(dist / 2), middle = from + step;
+ if (bidi) {
+ middle = from;
+ for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
+ }
+ var middleX = getX(middle);
+ if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
+ else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
+ }
+ }
+
+ var measureText;
+ // Compute the default text height.
+ function textHeight(display) {
+ if (display.cachedTextHeight != null) return display.cachedTextHeight;
+ if (measureText == null) {
+ measureText = elt("pre");
+ // Measure a bunch of lines, for browsers that compute
+ // fractional heights.
+ for (var i = 0; i < 49; ++i) {
+ measureText.appendChild(document.createTextNode("x"));
+ measureText.appendChild(elt("br"));
+ }
+ measureText.appendChild(document.createTextNode("x"));
+ }
+ removeChildrenAndAdd(display.measure, measureText);
+ var height = measureText.offsetHeight / 50;
+ if (height > 3) display.cachedTextHeight = height;
+ removeChildren(display.measure);
+ return height || 1;
+ }
+
+ // Compute the default character width.
+ function charWidth(display) {
+ if (display.cachedCharWidth != null) return display.cachedCharWidth;
+ var anchor = elt("span", "xxxxxxxxxx");
+ var pre = elt("pre", [anchor]);
+ removeChildrenAndAdd(display.measure, pre);
+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
+ if (width > 2) display.cachedCharWidth = width;
+ return width || 10;
+ }
+
+ // OPERATIONS
+
+ // Operations are used to wrap a series of changes to the editor
+ // state in such a way that each change won't have to update the
+ // cursor and display (which would be awkward, slow, and
+ // error-prone). Instead, display updates are batched and then all
+ // combined and executed at once.
+
+ var operationGroup = null;
+
+ var nextOpId = 0;
+ // Start a new operation.
+ function startOperation(cm) {
+ cm.curOp = {
+ cm: cm,
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
+ forceUpdate: false, // Used to force a redraw
+ updateInput: null, // Whether to reset the input textarea
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
+ changeObjs: null, // Accumulated changes, for firing change events
+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+ selectionChanged: false, // Whether the selection needs to be redrawn
+ updateMaxLine: false, // Set when the widest line needs to be determined anew
+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+ scrollToPos: null, // Used to scroll to a specific position
+ focus: false,
+ id: ++nextOpId // Unique ID
+ };
+ if (operationGroup) {
+ operationGroup.ops.push(cm.curOp);
+ } else {
+ cm.curOp.ownsGroup = operationGroup = {
+ ops: [cm.curOp],
+ delayedCallbacks: []
+ };
+ }
+ }
+
+ function fireCallbacksForOps(group) {
+ // Calls delayed callbacks and cursorActivity handlers until no
+ // new ones appear
+ var callbacks = group.delayedCallbacks, i = 0;
+ do {
+ for (; i < callbacks.length; i++)
+ callbacks[i].call(null);
+ for (var j = 0; j < group.ops.length; j++) {
+ var op = group.ops[j];
+ if (op.cursorActivityHandlers)
+ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm);
+ }
+ } while (i < callbacks.length);
+ }
+
+ // Finish an operation, updating the display and signalling delayed events
+ function endOperation(cm) {
+ var op = cm.curOp, group = op.ownsGroup;
+ if (!group) return;
+
+ try { fireCallbacksForOps(group); }
+ finally {
+ operationGroup = null;
+ for (var i = 0; i < group.ops.length; i++)
+ group.ops[i].cm.curOp = null;
+ endOperations(group);
+ }
+ }
+
+ // The DOM updates done when an operation finishes are batched so
+ // that the minimum number of relayouts are required.
+ function endOperations(group) {
+ var ops = group.ops;
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_R1(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+ endOperation_W1(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_R2(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+ endOperation_W2(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_finish(ops[i]);
+ }
+
+ function endOperation_R1(op) {
+ var cm = op.cm, display = cm.display;
+ maybeClipScrollbars(cm);
+ if (op.updateMaxLine) findMaxLine(cm);
+
+ op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+ op.scrollToPos.to.line >= display.viewTo) ||
+ display.maxLineChanged && cm.options.lineWrapping;
+ op.update = op.mustUpdate &&
+ new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
+ }
+
+ function endOperation_W1(op) {
+ op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+ }
+
+ function endOperation_R2(op) {
+ var cm = op.cm, display = cm.display;
+ if (op.updatedDisplay) updateHeightsInViewport(cm);
+
+ op.barMeasure = measureForScrollbars(cm);
+
+ // If the max line changed since it was last measured, measure it,
+ // and ensure the document's width matches it.
+ // updateDisplay_W2 will use these properties to do the actual resizing
+ if (display.maxLineChanged && !cm.options.lineWrapping) {
+ op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+ cm.display.sizerWidth = op.adjustWidthTo;
+ op.barMeasure.scrollWidth =
+ Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
+ op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
+ }
+
+ if (op.updatedDisplay || op.selectionChanged)
+ op.preparedSelection = display.input.prepareSelection();
+ }
+
+ function endOperation_W2(op) {
+ var cm = op.cm;
+
+ if (op.adjustWidthTo != null) {
+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+ if (op.maxScrollLeft < cm.doc.scrollLeft)
+ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
+ cm.display.maxLineChanged = false;
+ }
+
+ if (op.preparedSelection)
+ cm.display.input.showSelection(op.preparedSelection);
+ if (op.updatedDisplay)
+ setDocumentHeight(cm, op.barMeasure);
+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
+ updateScrollbars(cm, op.barMeasure);
+
+ if (op.selectionChanged) restartBlink(cm);
+
+ if (cm.state.focused && op.updateInput)
+ cm.display.input.reset(op.typing);
+ if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);
+ }
+
+ function endOperation_finish(op) {
+ var cm = op.cm, display = cm.display, doc = cm.doc;
+
+ if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
+
+ // Abort mouse wheel delta measurement, when scrolling explicitly
+ if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+ display.wheelStartX = display.wheelStartY = null;
+
+ // Propagate the scroll position to the actual DOM scroller
+ if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
+ doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
+ display.scrollbars.setScrollTop(doc.scrollTop);
+ display.scroller.scrollTop = doc.scrollTop;
+ }
+ if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
+ doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft));
+ display.scrollbars.setScrollLeft(doc.scrollLeft);
+ display.scroller.scrollLeft = doc.scrollLeft;
+ alignHorizontally(cm);
+ }
+ // If we need to scroll a specific position into view, do so.
+ if (op.scrollToPos) {
+ var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+ clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
+ if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
+ }
+
+ // Fire events for markers that are hidden/unidden by editing or
+ // undoing
+ var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
+ if (hidden) for (var i = 0; i < hidden.length; ++i)
+ if (!hidden[i].lines.length) signal(hidden[i], "hide");
+ if (unhidden) for (var i = 0; i < unhidden.length; ++i)
+ if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
+
+ if (display.wrapper.offsetHeight)
+ doc.scrollTop = cm.display.scroller.scrollTop;
+
+ // Fire change events, and delayed event handlers
+ if (op.changeObjs)
+ signal(cm, "changes", cm, op.changeObjs);
+ if (op.update)
+ op.update.finish();
+ }
+
+ // Run the given function in an operation
+ function runInOp(cm, f) {
+ if (cm.curOp) return f();
+ startOperation(cm);
+ try { return f(); }
+ finally { endOperation(cm); }
+ }
+ // Wraps a function in an operation. Returns the wrapped function.
+ function operation(cm, f) {
+ return function() {
+ if (cm.curOp) return f.apply(cm, arguments);
+ startOperation(cm);
+ try { return f.apply(cm, arguments); }
+ finally { endOperation(cm); }
+ };
+ }
+ // Used to add methods to editor and doc instances, wrapping them in
+ // operations.
+ function methodOp(f) {
+ return function() {
+ if (this.curOp) return f.apply(this, arguments);
+ startOperation(this);
+ try { return f.apply(this, arguments); }
+ finally { endOperation(this); }
+ };
+ }
+ function docMethodOp(f) {
+ return function() {
+ var cm = this.cm;
+ if (!cm || cm.curOp) return f.apply(this, arguments);
+ startOperation(cm);
+ try { return f.apply(this, arguments); }
+ finally { endOperation(cm); }
+ };
+ }
+
+ // VIEW TRACKING
+
+ // These objects are used to represent the visible (currently drawn)
+ // part of the document. A LineView may correspond to multiple
+ // logical lines, if those are connected by collapsed ranges.
+ function LineView(doc, line, lineN) {
+ // The starting line
+ this.line = line;
+ // Continuing lines, if any
+ this.rest = visualLineContinued(line);
+ // Number of logical lines in this visual line
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+ this.node = this.text = null;
+ this.hidden = lineIsHidden(doc, line);
+ }
+
+ // Create a range of LineView objects for the given lines.
+ function buildViewArray(cm, from, to) {
+ var array = [], nextPos;
+ for (var pos = from; pos < to; pos = nextPos) {
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+ nextPos = pos + view.size;
+ array.push(view);
+ }
+ return array;
+ }
+
+ // Updates the display.view data structure for a given change to the
+ // document. From and to are in pre-change coordinates. Lendiff is
+ // the amount of lines added or subtracted by the change. This is
+ // used for changes that span multiple lines, or change the way
+ // lines are divided into visual lines. regLineChange (below)
+ // registers single-line changes.
+ function regChange(cm, from, to, lendiff) {
+ if (from == null) from = cm.doc.first;
+ if (to == null) to = cm.doc.first + cm.doc.size;
+ if (!lendiff) lendiff = 0;
+
+ var display = cm.display;
+ if (lendiff && to < display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers > from))
+ display.updateLineNumbers = from;
+
+ cm.curOp.viewChanged = true;
+
+ if (from >= display.viewTo) { // Change after
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+ resetView(cm);
+ } else if (to <= display.viewFrom) { // Change before
+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+ resetView(cm);
+ } else {
+ display.viewFrom += lendiff;
+ display.viewTo += lendiff;
+ }
+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+ resetView(cm);
+ } else if (from <= display.viewFrom) { // Top overlap
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cut) {
+ display.view = display.view.slice(cut.index);
+ display.viewFrom = cut.lineN;
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ } else if (to >= display.viewTo) { // Bottom overlap
+ var cut = viewCuttingPoint(cm, from, from, -1);
+ if (cut) {
+ display.view = display.view.slice(0, cut.index);
+ display.viewTo = cut.lineN;
+ } else {
+ resetView(cm);
+ }
+ } else { // Gap in the middle
+ var cutTop = viewCuttingPoint(cm, from, from, -1);
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cutTop && cutBot) {
+ display.view = display.view.slice(0, cutTop.index)
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+ .concat(display.view.slice(cutBot.index));
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ }
+
+ var ext = display.externalMeasured;
+ if (ext) {
+ if (to < ext.lineN)
+ ext.lineN += lendiff;
+ else if (from < ext.lineN + ext.size)
+ display.externalMeasured = null;
+ }
+ }
+
+ // Register a change to a single line. Type must be one of "text",
+ // "gutter", "class", "widget"
+ function regLineChange(cm, line, type) {
+ cm.curOp.viewChanged = true;
+ var display = cm.display, ext = cm.display.externalMeasured;
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+ display.externalMeasured = null;
+
+ if (line < display.viewFrom || line >= display.viewTo) return;
+ var lineView = display.view[findViewIndex(cm, line)];
+ if (lineView.node == null) return;
+ var arr = lineView.changes || (lineView.changes = []);
+ if (indexOf(arr, type) == -1) arr.push(type);
+ }
+
+ // Clear the view.
+ function resetView(cm) {
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+ cm.display.view = [];
+ cm.display.viewOffset = 0;
+ }
+
+ // Find the view element corresponding to a given line. Return null
+ // when the line isn't visible.
+ function findViewIndex(cm, n) {
+ if (n >= cm.display.viewTo) return null;
+ n -= cm.display.viewFrom;
+ if (n < 0) return null;
+ var view = cm.display.view;
+ for (var i = 0; i < view.length; i++) {
+ n -= view[i].size;
+ if (n < 0) return i;
+ }
+ }
+
+ function viewCuttingPoint(cm, oldN, newN, dir) {
+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+ return {index: index, lineN: newN};
+ for (var i = 0, n = cm.display.viewFrom; i < index; i++)
+ n += view[i].size;
+ if (n != oldN) {
+ if (dir > 0) {
+ if (index == view.length - 1) return null;
+ diff = (n + view[index].size) - oldN;
+ index++;
+ } else {
+ diff = n - oldN;
+ }
+ oldN += diff; newN += diff;
+ }
+ while (visualLineNo(cm.doc, newN) != newN) {
+ if (index == (dir < 0 ? 0 : view.length - 1)) return null;
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+ index += dir;
+ }
+ return {index: index, lineN: newN};
+ }
+
+ // Force the view to cover a given range, adding empty view element
+ // or clipping off existing ones as needed.
+ function adjustView(cm, from, to) {
+ var display = cm.display, view = display.view;
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+ display.view = buildViewArray(cm, from, to);
+ display.viewFrom = from;
+ } else {
+ if (display.viewFrom > from)
+ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
+ else if (display.viewFrom < from)
+ display.view = display.view.slice(findViewIndex(cm, from));
+ display.viewFrom = from;
+ if (display.viewTo < to)
+ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
+ else if (display.viewTo > to)
+ display.view = display.view.slice(0, findViewIndex(cm, to));
+ }
+ display.viewTo = to;
+ }
+
+ // Count the number of lines in the view whose DOM representation is
+ // out of date (or nonexistent).
+ function countDirtyView(cm) {
+ var view = cm.display.view, dirty = 0;
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
+ }
+ return dirty;
+ }
+
+ // EVENT HANDLERS
+
+ // Attach the necessary event handlers when initializing the editor
+ function registerEventHandlers(cm) {
+ var d = cm.display;
+ on(d.scroller, "mousedown", operation(cm, onMouseDown));
+ // Older IE's will not fire a second mousedown for a double click
+ if (ie && ie_version < 11)
+ on(d.scroller, "dblclick", operation(cm, function(e) {
+ if (signalDOMEvent(cm, e)) return;
+ var pos = posFromMouse(cm, e);
+ if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
+ e_preventDefault(e);
+ var word = cm.findWordAt(pos);
+ extendSelection(cm.doc, word.anchor, word.head);
+ }));
+ else
+ on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
+ // Some browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for these browsers.
+ if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
+
+ // Used to suppress mouse event handling when a touch happens
+ var touchFinished, prevTouch = {end: 0};
+ function finishTouch() {
+ if (d.activeTouch) {
+ touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
+ prevTouch = d.activeTouch;
+ prevTouch.end = +new Date;
+ }
+ };
+ function isMouseLikeTouchEvent(e) {
+ if (e.touches.length != 1) return false;
+ var touch = e.touches[0];
+ return touch.radiusX <= 1 && touch.radiusY <= 1;
+ }
+ function farAway(touch, other) {
+ if (other.left == null) return true;
+ var dx = other.left - touch.left, dy = other.top - touch.top;
+ return dx * dx + dy * dy > 20 * 20;
+ }
+ on(d.scroller, "touchstart", function(e) {
+ if (!isMouseLikeTouchEvent(e)) {
+ clearTimeout(touchFinished);
+ var now = +new Date;
+ d.activeTouch = {start: now, moved: false,
+ prev: now - prevTouch.end <= 300 ? prevTouch : null};
+ if (e.touches.length == 1) {
+ d.activeTouch.left = e.touches[0].pageX;
+ d.activeTouch.top = e.touches[0].pageY;
+ }
+ }
+ });
+ on(d.scroller, "touchmove", function() {
+ if (d.activeTouch) d.activeTouch.moved = true;
+ });
+ on(d.scroller, "touchend", function(e) {
+ var touch = d.activeTouch;
+ if (touch && !eventInWidget(d, e) && touch.left != null &&
+ !touch.moved && new Date - touch.start < 300) {
+ var pos = cm.coordsChar(d.activeTouch, "page"), range;
+ if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+ range = new Range(pos, pos);
+ else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+ range = cm.findWordAt(pos);
+ else // Triple tap
+ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
+ cm.setSelection(range.anchor, range.head);
+ cm.focus();
+ e_preventDefault(e);
+ }
+ finishTouch();
+ });
+ on(d.scroller, "touchcancel", finishTouch);
+
+ // Sync scrolling between fake scrollbars and real scrollable
+ // area, ensure viewport is updated when scrolling.
+ on(d.scroller, "scroll", function() {
+ if (d.scroller.clientHeight) {
+ setScrollTop(cm, d.scroller.scrollTop);
+ setScrollLeft(cm, d.scroller.scrollLeft, true);
+ signal(cm, "scroll", cm);
+ }
+ });
+
+ // Listen to wheel events in order to try and update the viewport on time.
+ on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
+ on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
+
+ // Prevent wrapper from ever scrolling
+ on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
+
+ d.dragFunctions = {
+ enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
+ over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
+ start: function(e){onDragStart(cm, e);},
+ drop: operation(cm, onDrop),
+ leave: function() {clearDragCursor(cm);}
+ };
+
+ var inp = d.input.getField();
+ on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
+ on(inp, "keydown", operation(cm, onKeyDown));
+ on(inp, "keypress", operation(cm, onKeyPress));
+ on(inp, "focus", bind(onFocus, cm));
+ on(inp, "blur", bind(onBlur, cm));
+ }
+
+ function dragDropChanged(cm, value, old) {
+ var wasOn = old && old != CodeMirror.Init;
+ if (!value != !wasOn) {
+ var funcs = cm.display.dragFunctions;
+ var toggle = value ? on : off;
+ toggle(cm.display.scroller, "dragstart", funcs.start);
+ toggle(cm.display.scroller, "dragenter", funcs.enter);
+ toggle(cm.display.scroller, "dragover", funcs.over);
+ toggle(cm.display.scroller, "dragleave", funcs.leave);
+ toggle(cm.display.scroller, "drop", funcs.drop);
+ }
+ }
+
+ // Called when the window resizes
+ function onResize(cm) {
+ var d = cm.display;
+ if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+ return;
+ // Might be a text scaling operation, clear size caches.
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+ d.scrollbarsClipped = false;
+ cm.setSize();
+ }
+
+ // MOUSE EVENTS
+
+ // Return true when the given mouse event happened in a widget
+ function eventInWidget(display, e) {
+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+ if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+ (n.parentNode == display.sizer && n != display.mover))
+ return true;
+ }
+ }
+
+ // Given a mouse event, find the corresponding position. If liberal
+ // is false, it checks whether a gutter or scrollbar was clicked,
+ // and returns null if it was. forRect is used by rectangular
+ // selections, and tries to estimate a character position even for
+ // coordinates beyond the right of the text.
+ function posFromMouse(cm, e, liberal, forRect) {
+ var display = cm.display;
+ if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;
+
+ var x, y, space = display.lineSpace.getBoundingClientRect();
+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+ try { x = e.clientX - space.left; y = e.clientY - space.top; }
+ catch (e) { return null; }
+ var coords = coordsChar(cm, x, y), line;
+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
+ coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
+ }
+ return coords;
+ }
+
+ // A mouse down can be a single click, double click, triple click,
+ // start of selection drag, start of text drag, new cursor
+ // (ctrl-click), rectangle drag (alt-drag), or xwin
+ // middle-click-paste. Or it might be a click on something we should
+ // not interfere with, such as a scrollbar or widget.
+ function onMouseDown(e) {
+ var cm = this, display = cm.display;
+ if (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return;
+ display.shift = e.shiftKey;
+
+ if (eventInWidget(display, e)) {
+ if (!webkit) {
+ // Briefly turn off draggability, to allow widgets to do
+ // normal dragging things.
+ display.scroller.draggable = false;
+ setTimeout(function(){display.scroller.draggable = true;}, 100);
+ }
+ return;
+ }
+ if (clickInGutter(cm, e)) return;
+ var start = posFromMouse(cm, e);
+ window.focus();
+
+ switch (e_button(e)) {
+ case 1:
+ // #3261: make sure, that we're not starting a second selection
+ if (cm.state.selectingText)
+ cm.state.selectingText(e);
+ else if (start)
+ leftButtonDown(cm, e, start);
+ else if (e_target(e) == display.scroller)
+ e_preventDefault(e);
+ break;
+ case 2:
+ if (webkit) cm.state.lastMiddleDown = +new Date;
+ if (start) extendSelection(cm.doc, start);
+ setTimeout(function() {display.input.focus();}, 20);
+ e_preventDefault(e);
+ break;
+ case 3:
+ if (captureRightClick) onContextMenu(cm, e);
+ else delayBlurEvent(cm);
+ break;
+ }
+ }
+
+ var lastClick, lastDoubleClick;
+ function leftButtonDown(cm, e, start) {
+ if (ie) setTimeout(bind(ensureFocus, cm), 0);
+ else cm.curOp.focus = activeElt();
+
+ var now = +new Date, type;
+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
+ type = "triple";
+ } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
+ type = "double";
+ lastDoubleClick = {time: now, pos: start};
+ } else {
+ type = "single";
+ lastClick = {time: now, pos: start};
+ }
+
+ var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
+ if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
+ type == "single" && (contained = sel.contains(start)) > -1 &&
+ (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
+ (cmp(contained.to(), start) > 0 || start.xRel < 0))
+ leftButtonStartDrag(cm, e, start, modifier);
+ else
+ leftButtonSelect(cm, e, start, type, modifier);
+ }
+
+ // Start a text drag. When it ends, see if any dragging actually
+ // happen, and treat as a click if it didn't.
+ function leftButtonStartDrag(cm, e, start, modifier) {
+ var display = cm.display, startTime = +new Date;
+ var dragEnd = operation(cm, function(e2) {
+ if (webkit) display.scroller.draggable = false;
+ cm.state.draggingText = false;
+ off(document, "mouseup", dragEnd);
+ off(display.scroller, "drop", dragEnd);
+ if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+ e_preventDefault(e2);
+ if (!modifier && +new Date - 200 < startTime)
+ extendSelection(cm.doc, start);
+ // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+ if (webkit || ie && ie_version == 9)
+ setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
+ else
+ display.input.focus();
+ }
+ });
+ // Let the drag handler handle this.
+ if (webkit) display.scroller.draggable = true;
+ cm.state.draggingText = dragEnd;
+ // IE's approach to draggable
+ if (display.scroller.dragDrop) display.scroller.dragDrop();
+ on(document, "mouseup", dragEnd);
+ on(display.scroller, "drop", dragEnd);
+ }
+
+ // Normal selection, as opposed to text dragging.
+ function leftButtonSelect(cm, e, start, type, addNew) {
+ var display = cm.display, doc = cm.doc;
+ e_preventDefault(e);
+
+ var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
+ if (addNew && !e.shiftKey) {
+ ourIndex = doc.sel.contains(start);
+ if (ourIndex > -1)
+ ourRange = ranges[ourIndex];
+ else
+ ourRange = new Range(start, start);
+ } else {
+ ourRange = doc.sel.primary();
+ ourIndex = doc.sel.primIndex;
+ }
+
+ if (e.altKey) {
+ type = "rect";
+ if (!addNew) ourRange = new Range(start, start);
+ start = posFromMouse(cm, e, true, true);
+ ourIndex = -1;
+ } else if (type == "double") {
+ var word = cm.findWordAt(start);
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, word.anchor, word.head);
+ else
+ ourRange = word;
+ } else if (type == "triple") {
+ var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, line.anchor, line.head);
+ else
+ ourRange = line;
+ } else {
+ ourRange = extendRange(doc, ourRange, start);
+ }
+
+ if (!addNew) {
+ ourIndex = 0;
+ setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+ startSel = doc.sel;
+ } else if (ourIndex == -1) {
+ ourIndex = ranges.length;
+ setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+ {scroll: false, origin: "*mouse"});
+ } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
+ setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+ {scroll: false, origin: "*mouse"});
+ startSel = doc.sel;
+ } else {
+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+ }
+
+ var lastPos = start;
+ function extendTo(pos) {
+ if (cmp(lastPos, pos) == 0) return;
+ lastPos = pos;
+
+ if (type == "rect") {
+ var ranges = [], tabSize = cm.options.tabSize;
+ var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+ var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
+ for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+ line <= end; line++) {
+ var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
+ if (left == right)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
+ else if (text.length > leftPos)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
+ }
+ if (!ranges.length) ranges.push(new Range(start, start));
+ setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+ {origin: "*mouse", scroll: false});
+ cm.scrollIntoView(pos);
+ } else {
+ var oldRange = ourRange;
+ var anchor = oldRange.anchor, head = pos;
+ if (type != "single") {
+ if (type == "double")
+ var range = cm.findWordAt(pos);
+ else
+ var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
+ if (cmp(range.anchor, anchor) > 0) {
+ head = range.head;
+ anchor = minPos(oldRange.from(), range.anchor);
+ } else {
+ head = range.anchor;
+ anchor = maxPos(oldRange.to(), range.head);
+ }
+ }
+ var ranges = startSel.ranges.slice(0);
+ ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
+ setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
+ }
+ }
+
+ var editorSize = display.wrapper.getBoundingClientRect();
+ // Used to ensure timeout re-tries don't fire when another extend
+ // happened in the meantime (clearTimeout isn't reliable -- at
+ // least on Chrome, the timeouts still happen even when cleared,
+ // if the clear happens after their scheduled firing time).
+ var counter = 0;
+
+ function extend(e) {
+ var curCount = ++counter;
+ var cur = posFromMouse(cm, e, true, type == "rect");
+ if (!cur) return;
+ if (cmp(cur, lastPos) != 0) {
+ cm.curOp.focus = activeElt();
+ extendTo(cur);
+ var visible = visibleLines(display, doc);
+ if (cur.line >= visible.to || cur.line < visible.from)
+ setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
+ } else {
+ var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
+ if (outside) setTimeout(operation(cm, function() {
+ if (counter != curCount) return;
+ display.scroller.scrollTop += outside;
+ extend(e);
+ }), 50);
+ }
+ }
+
+ function done(e) {
+ cm.state.selectingText = false;
+ counter = Infinity;
+ e_preventDefault(e);
+ display.input.focus();
+ off(document, "mousemove", move);
+ off(document, "mouseup", up);
+ doc.history.lastSelOrigin = null;
+ }
+
+ var move = operation(cm, function(e) {
+ if (!e_button(e)) done(e);
+ else extend(e);
+ });
+ var up = operation(cm, done);
+ cm.state.selectingText = up;
+ on(document, "mousemove", move);
+ on(document, "mouseup", up);
+ }
+
+ // Determines whether an event happened in the gutter, and fires the
+ // handlers for the corresponding event.
+ function gutterEvent(cm, e, type, prevent, signalfn) {
+ try { var mX = e.clientX, mY = e.clientY; }
+ catch(e) { return false; }
+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
+ if (prevent) e_preventDefault(e);
+
+ var display = cm.display;
+ var lineBox = display.lineDiv.getBoundingClientRect();
+
+ if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
+ mY -= lineBox.top - display.viewOffset;
+
+ for (var i = 0; i < cm.options.gutters.length; ++i) {
+ var g = display.gutters.childNodes[i];
+ if (g && g.getBoundingClientRect().right >= mX) {
+ var line = lineAtHeight(cm.doc, mY);
+ var gutter = cm.options.gutters[i];
+ signalfn(cm, type, cm, line, gutter, e);
+ return e_defaultPrevented(e);
+ }
+ }
+ }
+
+ function clickInGutter(cm, e) {
+ return gutterEvent(cm, e, "gutterClick", true, signalLater);
+ }
+
+ // Kludge to work around strange IE behavior where it'll sometimes
+ // re-fire a series of drag-related events right after the drop (#1551)
+ var lastDrop = 0;
+
+ function onDrop(e) {
+ var cm = this;
+ clearDragCursor(cm);
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+ return;
+ e_preventDefault(e);
+ if (ie) lastDrop = +new Date;
+ var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
+ if (!pos || isReadOnly(cm)) return;
+ // Might be a file drop, in which case we simply extract the text
+ // and insert it.
+ if (files && files.length && window.FileReader && window.File) {
+ var n = files.length, text = Array(n), read = 0;
+ var loadFile = function(file, i) {
+ if (cm.options.allowDropFileTypes &&
+ indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+ return;
+
+ var reader = new FileReader;
+ reader.onload = operation(cm, function() {
+ var content = reader.result;
+ if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = "";
+ text[i] = content;
+ if (++read == n) {
+ pos = clipPos(cm.doc, pos);
+ var change = {from: pos, to: pos,
+ text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+ origin: "paste"};
+ makeChange(cm.doc, change);
+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+ }
+ });
+ reader.readAsText(file);
+ };
+ for (var i = 0; i < n; ++i) loadFile(files[i], i);
+ } else { // Normal drop
+ // Don't do a replace if the drop happened inside of the selected text.
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+ cm.state.draggingText(e);
+ // Ensure the editor is re-focused
+ setTimeout(function() {cm.display.input.focus();}, 20);
+ return;
+ }
+ try {
+ var text = e.dataTransfer.getData("Text");
+ if (text) {
+ if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
+ var selected = cm.listSelections();
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+ if (selected) for (var i = 0; i < selected.length; ++i)
+ replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
+ cm.replaceSelection(text, "around", "paste");
+ cm.display.input.focus();
+ }
+ }
+ catch(e){}
+ }
+ }
+
+ function onDragStart(cm, e) {
+ if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
+
+ e.dataTransfer.setData("Text", cm.getSelection());
+
+ // Use dummy image instead of default browsers image.
+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+ if (e.dataTransfer.setDragImage && !safari) {
+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+ img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+ if (presto) {
+ img.width = img.height = 1;
+ cm.display.wrapper.appendChild(img);
+ // Force a relayout, or Opera won't use our image for some obscure reason
+ img._top = img.offsetTop;
+ }
+ e.dataTransfer.setDragImage(img, 0, 0);
+ if (presto) img.parentNode.removeChild(img);
+ }
+ }
+
+ function onDragOver(cm, e) {
+ var pos = posFromMouse(cm, e);
+ if (!pos) return;
+ var frag = document.createDocumentFragment();
+ drawSelectionCursor(cm, pos, frag);
+ if (!cm.display.dragCursor) {
+ cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
+ cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
+ }
+ removeChildrenAndAdd(cm.display.dragCursor, frag);
+ }
+
+ function clearDragCursor(cm) {
+ if (cm.display.dragCursor) {
+ cm.display.lineSpace.removeChild(cm.display.dragCursor);
+ cm.display.dragCursor = null;
+ }
+ }
+
+ // SCROLL EVENTS
+
+ // Sync the scrollable area and scrollbars, ensure the viewport
+ // covers the visible area.
+ function setScrollTop(cm, val) {
+ if (Math.abs(cm.doc.scrollTop - val) < 2) return;
+ cm.doc.scrollTop = val;
+ if (!gecko) updateDisplaySimple(cm, {top: val});
+ if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
+ cm.display.scrollbars.setScrollTop(val);
+ if (gecko) updateDisplaySimple(cm);
+ startWorker(cm, 100);
+ }
+ // Sync scroller and scrollbar, ensure the gutter elements are
+ // aligned.
+ function setScrollLeft(cm, val, isScroller) {
+ if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
+ val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+ cm.doc.scrollLeft = val;
+ alignHorizontally(cm);
+ if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
+ cm.display.scrollbars.setScrollLeft(val);
+ }
+
+ // Since the delta values reported on mouse wheel events are
+ // unstandardized between browsers and even browser versions, and
+ // generally horribly unpredictable, this code starts by measuring
+ // the scroll effect that the first few mouse wheel events have,
+ // and, from that, detects the way it can convert deltas to pixel
+ // offsets afterwards.
+ //
+ // The reason we want to know the amount a wheel event will scroll
+ // is that it gives us a chance to update the display before the
+ // actual scrolling happens, reducing flickering.
+
+ var wheelSamples = 0, wheelPixelsPerUnit = null;
+ // Fill in a browser-detected starting value on browsers where we
+ // know one. These don't have to be accurate -- the result of them
+ // being wrong would just be a slight flicker on the first wheel
+ // scroll (if it is large enough).
+ if (ie) wheelPixelsPerUnit = -.53;
+ else if (gecko) wheelPixelsPerUnit = 15;
+ else if (chrome) wheelPixelsPerUnit = -.7;
+ else if (safari) wheelPixelsPerUnit = -1/3;
+
+ var wheelEventDelta = function(e) {
+ var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
+ else if (dy == null) dy = e.wheelDelta;
+ return {x: dx, y: dy};
+ };
+ CodeMirror.wheelEventPixels = function(e) {
+ var delta = wheelEventDelta(e);
+ delta.x *= wheelPixelsPerUnit;
+ delta.y *= wheelPixelsPerUnit;
+ return delta;
+ };
+
+ function onScrollWheel(cm, e) {
+ var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
+
+ var display = cm.display, scroll = display.scroller;
+ // Quit if there's nothing to scroll here
+ var canScrollX = scroll.scrollWidth > scroll.clientWidth;
+ var canScrollY = scroll.scrollHeight > scroll.clientHeight;
+ if (!(dx && canScrollX || dy && canScrollY)) return;
+
+ // Webkit browsers on OS X abort momentum scrolls when the target
+ // of the scroll event is removed from the scrollable element.
+ // This hack (see related code in patchDisplay) makes sure the
+ // element is kept around.
+ if (dy && mac && webkit) {
+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+ for (var i = 0; i < view.length; i++) {
+ if (view[i].node == cur) {
+ cm.display.currentWheelTarget = cur;
+ break outer;
+ }
+ }
+ }
+ }
+
+ // On some browsers, horizontal scrolling will cause redraws to
+ // happen before the gutter has been realigned, causing it to
+ // wriggle around in a most unseemly way. When we have an
+ // estimated pixels/delta value, we just handle horizontal
+ // scrolling entirely here. It'll be slightly off from native, but
+ // better than glitching out.
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+ if (dy && canScrollY)
+ setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
+ setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
+ // Only prevent default scrolling if vertical scrolling is
+ // actually possible. Otherwise, it causes vertical scroll
+ // jitter on OSX trackpads when deltaX is small and deltaY
+ // is large (issue #3579)
+ if (!dy || (dy && canScrollY))
+ e_preventDefault(e);
+ display.wheelStartX = null; // Abort measurement, if in progress
+ return;
+ }
+
+ // 'Project' the visible viewport to cover the area that is being
+ // scrolled into view (if we know enough to estimate it).
+ if (dy && wheelPixelsPerUnit != null) {
+ var pixels = dy * wheelPixelsPerUnit;
+ var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
+ if (pixels < 0) top = Math.max(0, top + pixels - 50);
+ else bot = Math.min(cm.doc.height, bot + pixels + 50);
+ updateDisplaySimple(cm, {top: top, bottom: bot});
+ }
+
+ if (wheelSamples < 20) {
+ if (display.wheelStartX == null) {
+ display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
+ display.wheelDX = dx; display.wheelDY = dy;
+ setTimeout(function() {
+ if (display.wheelStartX == null) return;
+ var movedX = scroll.scrollLeft - display.wheelStartX;
+ var movedY = scroll.scrollTop - display.wheelStartY;
+ var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+ (movedX && display.wheelDX && movedX / display.wheelDX);
+ display.wheelStartX = display.wheelStartY = null;
+ if (!sample) return;
+ wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+ ++wheelSamples;
+ }, 200);
+ } else {
+ display.wheelDX += dx; display.wheelDY += dy;
+ }
+ }
+ }
+
+ // KEY EVENTS
+
+ // Run a handler that was bound to a key.
+ function doHandleBinding(cm, bound, dropShift) {
+ if (typeof bound == "string") {
+ bound = commands[bound];
+ if (!bound) return false;
+ }
+ // Ensure previous input has been read, so that the handler sees a
+ // consistent view of the document
+ cm.display.input.ensurePolled();
+ var prevShift = cm.display.shift, done = false;
+ try {
+ if (isReadOnly(cm)) cm.state.suppressEdits = true;
+ if (dropShift) cm.display.shift = false;
+ done = bound(cm) != Pass;
+ } finally {
+ cm.display.shift = prevShift;
+ cm.state.suppressEdits = false;
+ }
+ return done;
+ }
+
+ function lookupKeyForEditor(cm, name, handle) {
+ for (var i = 0; i < cm.state.keyMaps.length; i++) {
+ var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+ if (result) return result;
+ }
+ return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+ || lookupKey(name, cm.options.keyMap, handle, cm);
+ }
+
+ var stopSeq = new Delayed;
+ function dispatchKey(cm, name, e, handle) {
+ var seq = cm.state.keySeq;
+ if (seq) {
+ if (isModifierKey(name)) return "handled";
+ stopSeq.set(50, function() {
+ if (cm.state.keySeq == seq) {
+ cm.state.keySeq = null;
+ cm.display.input.reset();
+ }
+ });
+ name = seq + " " + name;
+ }
+ var result = lookupKeyForEditor(cm, name, handle);
+
+ if (result == "multi")
+ cm.state.keySeq = name;
+ if (result == "handled")
+ signalLater(cm, "keyHandled", cm, name, e);
+
+ if (result == "handled" || result == "multi") {
+ e_preventDefault(e);
+ restartBlink(cm);
+ }
+
+ if (seq && !result && /\'$/.test(name)) {
+ e_preventDefault(e);
+ return true;
+ }
+ return !!result;
+ }
+
+ // Handle a key from the keydown event.
+ function handleKeyBinding(cm, e) {
+ var name = keyName(e, true);
+ if (!name) return false;
+
+ if (e.shiftKey && !cm.state.keySeq) {
+ // First try to resolve full name (including 'Shift-'). Failing
+ // that, see if there is a cursor-motion command (starting with
+ // 'go') bound to the keyname without 'Shift-'.
+ return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
+ || dispatchKey(cm, name, e, function(b) {
+ if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+ return doHandleBinding(cm, b);
+ });
+ } else {
+ return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
+ }
+ }
+
+ // Handle a key from the keypress event
+ function handleCharBinding(cm, e, ch) {
+ return dispatchKey(cm, "'" + ch + "'", e,
+ function(b) { return doHandleBinding(cm, b, true); });
+ }
+
+ var lastStoppedKey = null;
+ function onKeyDown(e) {
+ var cm = this;
+ cm.curOp.focus = activeElt();
+ if (signalDOMEvent(cm, e)) return;
+ // IE does strange things with escape.
+ if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
+ var code = e.keyCode;
+ cm.display.shift = code == 16 || e.shiftKey;
+ var handled = handleKeyBinding(cm, e);
+ if (presto) {
+ lastStoppedKey = handled ? code : null;
+ // Opera has no cut event... we try to at least catch the key combo
+ if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+ cm.replaceSelection("", null, "cut");
+ }
+
+ // Turn mouse into crosshair when Alt is held on Mac.
+ if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+ showCrossHair(cm);
+ }
+
+ function showCrossHair(cm) {
+ var lineDiv = cm.display.lineDiv;
+ addClass(lineDiv, "CodeMirror-crosshair");
+
+ function up(e) {
+ if (e.keyCode == 18 || !e.altKey) {
+ rmClass(lineDiv, "CodeMirror-crosshair");
+ off(document, "keyup", up);
+ off(document, "mouseover", up);
+ }
+ }
+ on(document, "keyup", up);
+ on(document, "mouseover", up);
+ }
+
+ function onKeyUp(e) {
+ if (e.keyCode == 16) this.doc.sel.shift = false;
+ signalDOMEvent(this, e);
+ }
+
+ function onKeyPress(e) {
+ var cm = this;
+ if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
+ var keyCode = e.keyCode, charCode = e.charCode;
+ if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
+ if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+ if (handleCharBinding(cm, e, ch)) return;
+ cm.display.input.onKeyPress(e);
+ }
+
+ // FOCUS/BLUR EVENTS
+
+ function delayBlurEvent(cm) {
+ cm.state.delayingBlurEvent = true;
+ setTimeout(function() {
+ if (cm.state.delayingBlurEvent) {
+ cm.state.delayingBlurEvent = false;
+ onBlur(cm);
+ }
+ }, 100);
+ }
+
+ function onFocus(cm) {
+ if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
+
+ if (cm.options.readOnly == "nocursor") return;
+ if (!cm.state.focused) {
+ signal(cm, "focus", cm);
+ cm.state.focused = true;
+ addClass(cm.display.wrapper, "CodeMirror-focused");
+ // This test prevents this from firing when a context
+ // menu is closed (since the input reset would kill the
+ // select-all detection hack)
+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+ cm.display.input.reset();
+ if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
+ }
+ cm.display.input.receivedFocus();
+ }
+ restartBlink(cm);
+ }
+ function onBlur(cm) {
+ if (cm.state.delayingBlurEvent) return;
+
+ if (cm.state.focused) {
+ signal(cm, "blur", cm);
+ cm.state.focused = false;
+ rmClass(cm.display.wrapper, "CodeMirror-focused");
+ }
+ clearInterval(cm.display.blinker);
+ setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
+ }
+
+ // CONTEXT MENU HANDLING
+
+ // To make the context menu work, we need to briefly unhide the
+ // textarea (making it as unobtrusive as possible) to let the
+ // right-click take effect on it.
+ function onContextMenu(cm, e) {
+ if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
+ if (signalDOMEvent(cm, e, "contextmenu")) return;
+ cm.display.input.onContextMenu(e);
+ }
+
+ function contextMenuInGutter(cm, e) {
+ if (!hasHandler(cm, "gutterContextMenu")) return false;
+ return gutterEvent(cm, e, "gutterContextMenu", false, signal);
+ }
+
+ // UPDATING
+
+ // Compute the position of the end of a change (its 'to' property
+ // refers to the pre-change end).
+ var changeEnd = CodeMirror.changeEnd = function(change) {
+ if (!change.text) return change.to;
+ return Pos(change.from.line + change.text.length - 1,
+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
+ };
+
+ // Adjust a position to refer to the post-change position of the
+ // same text, or the end of the change if the change covers it.
+ function adjustForChange(pos, change) {
+ if (cmp(pos, change.from) < 0) return pos;
+ if (cmp(pos, change.to) <= 0) return changeEnd(change);
+
+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
+ if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
+ return Pos(line, ch);
+ }
+
+ function computeSelAfterChange(doc, change) {
+ var out = [];
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ out.push(new Range(adjustForChange(range.anchor, change),
+ adjustForChange(range.head, change)));
+ }
+ return normalizeSelection(out, doc.sel.primIndex);
+ }
+
+ function offsetPos(pos, old, nw) {
+ if (pos.line == old.line)
+ return Pos(nw.line, pos.ch - old.ch + nw.ch);
+ else
+ return Pos(nw.line + (pos.line - old.line), pos.ch);
+ }
+
+ // Used by replaceSelections to allow moving the selection to the
+ // start or around the replaced test. Hint may be "start" or "around".
+ function computeReplacedSel(doc, changes, hint) {
+ var out = [];
+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
+ for (var i = 0; i < changes.length; i++) {
+ var change = changes[i];
+ var from = offsetPos(change.from, oldPrev, newPrev);
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+ oldPrev = change.to;
+ newPrev = to;
+ if (hint == "around") {
+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
+ out[i] = new Range(inv ? to : from, inv ? from : to);
+ } else {
+ out[i] = new Range(from, from);
+ }
+ }
+ return new Selection(out, doc.sel.primIndex);
+ }
+
+ // Allow "beforeChange" event handlers to influence a change
+ function filterChange(doc, change, update) {
+ var obj = {
+ canceled: false,
+ from: change.from,
+ to: change.to,
+ text: change.text,
+ origin: change.origin,
+ cancel: function() { this.canceled = true; }
+ };
+ if (update) obj.update = function(from, to, text, origin) {
+ if (from) this.from = clipPos(doc, from);
+ if (to) this.to = clipPos(doc, to);
+ if (text) this.text = text;
+ if (origin !== undefined) this.origin = origin;
+ };
+ signal(doc, "beforeChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
+
+ if (obj.canceled) return null;
+ return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
+ }
+
+ // Apply a change to a document, and add it to the document's
+ // history, and propagating it to all linked documents.
+ function makeChange(doc, change, ignoreReadOnly) {
+ if (doc.cm) {
+ if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
+ if (doc.cm.state.suppressEdits) return;
+ }
+
+ if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+ change = filterChange(doc, change, true);
+ if (!change) return;
+ }
+
+ // Possibly split or suppress the update based on the presence
+ // of read-only spans in its range.
+ var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
+ if (split) {
+ for (var i = split.length - 1; i >= 0; --i)
+ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
+ } else {
+ makeChangeInner(doc, change);
+ }
+ }
+
+ function makeChangeInner(doc, change) {
+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
+ var selAfter = computeSelAfterChange(doc, change);
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+ makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
+ var rebased = [];
+
+ linkedDocs(doc, function(doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
+ });
+ }
+
+ // Revert a change stored in a document's history.
+ function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+ if (doc.cm && doc.cm.state.suppressEdits) return;
+
+ var hist = doc.history, event, selAfter = doc.sel;
+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
+
+ // Verify that there is a useable event (so that ctrl-z won't
+ // needlessly clear selection events)
+ for (var i = 0; i < source.length; i++) {
+ event = source[i];
+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+ break;
+ }
+ if (i == source.length) return;
+ hist.lastOrigin = hist.lastSelOrigin = null;
+
+ for (;;) {
+ event = source.pop();
+ if (event.ranges) {
+ pushSelectionToHistory(event, dest);
+ if (allowSelectionOnly && !event.equals(doc.sel)) {
+ setSelection(doc, event, {clearRedo: false});
+ return;
+ }
+ selAfter = event;
+ }
+ else break;
+ }
+
+ // Build up a reverse change object to add to the opposite history
+ // stack (redo when undoing, and vice versa).
+ var antiChanges = [];
+ pushSelectionToHistory(selAfter, dest);
+ dest.push({changes: antiChanges, generation: hist.generation});
+ hist.generation = event.generation || ++hist.maxGeneration;
+
+ var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
+
+ for (var i = event.changes.length - 1; i >= 0; --i) {
+ var change = event.changes[i];
+ change.origin = type;
+ if (filter && !filterChange(doc, change, false)) {
+ source.length = 0;
+ return;
+ }
+
+ antiChanges.push(historyChangeFromChange(doc, change));
+
+ var after = i ? computeSelAfterChange(doc, change) : lst(source);
+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+ if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
+ var rebased = [];
+
+ // Propagate to the linked documents
+ linkedDocs(doc, function(doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+ });
+ }
+ }
+
+ // Sub-views need their line numbers shifted when text is added
+ // above or below them in the parent document.
+ function shiftDoc(doc, distance) {
+ if (distance == 0) return;
+ doc.first += distance;
+ doc.sel = new Selection(map(doc.sel.ranges, function(range) {
+ return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
+ Pos(range.head.line + distance, range.head.ch));
+ }), doc.sel.primIndex);
+ if (doc.cm) {
+ regChange(doc.cm, doc.first, doc.first - distance, distance);
+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+ regLineChange(doc.cm, l, "gutter");
+ }
+ }
+
+ // More lower-level change function, handling only a single document
+ // (not linked ones).
+ function makeChangeSingleDoc(doc, change, selAfter, spans) {
+ if (doc.cm && !doc.cm.curOp)
+ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
+
+ if (change.to.line < doc.first) {
+ shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
+ return;
+ }
+ if (change.from.line > doc.lastLine()) return;
+
+ // Clip the change to the size of this doc
+ if (change.from.line < doc.first) {
+ var shift = change.text.length - 1 - (doc.first - change.from.line);
+ shiftDoc(doc, shift);
+ change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+ text: [lst(change.text)], origin: change.origin};
+ }
+ var last = doc.lastLine();
+ if (change.to.line > last) {
+ change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+ text: [change.text[0]], origin: change.origin};
+ }
+
+ change.removed = getBetween(doc, change.from, change.to);
+
+ if (!selAfter) selAfter = computeSelAfterChange(doc, change);
+ if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
+ else updateDoc(doc, change, spans);
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+ }
+
+ // Handle the interaction of a change to a document with the editor
+ // that this document is part of.
+ function makeChangeSingleDocInEditor(cm, change, spans) {
+ var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
+
+ var recomputeMaxLength = false, checkWidthStart = from.line;
+ if (!cm.options.lineWrapping) {
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+ doc.iter(checkWidthStart, to.line + 1, function(line) {
+ if (line == display.maxLine) {
+ recomputeMaxLength = true;
+ return true;
+ }
+ });
+ }
+
+ if (doc.sel.contains(change.from, change.to) > -1)
+ signalCursorActivity(cm);
+
+ updateDoc(doc, change, spans, estimateHeight(cm));
+
+ if (!cm.options.lineWrapping) {
+ doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
+ var len = lineLength(line);
+ if (len > display.maxLineLength) {
+ display.maxLine = line;
+ display.maxLineLength = len;
+ display.maxLineChanged = true;
+ recomputeMaxLength = false;
+ }
+ });
+ if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
+ }
+
+ // Adjust frontier, schedule worker
+ doc.frontier = Math.min(doc.frontier, from.line);
+ startWorker(cm, 400);
+
+ var lendiff = change.text.length - (to.line - from.line) - 1;
+ // Remember that these lines changed, for updating the display
+ if (change.full)
+ regChange(cm);
+ else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+ regLineChange(cm, from.line, "text");
+ else
+ regChange(cm, from.line, to.line + 1, lendiff);
+
+ var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
+ if (changeHandler || changesHandler) {
+ var obj = {
+ from: from, to: to,
+ text: change.text,
+ removed: change.removed,
+ origin: change.origin
+ };
+ if (changeHandler) signalLater(cm, "change", cm, obj);
+ if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
+ }
+ cm.display.selForContextMenu = null;
+ }
+
+ function replaceRange(doc, code, from, to, origin) {
+ if (!to) to = from;
+ if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
+ if (typeof code == "string") code = doc.splitLines(code);
+ makeChange(doc, {from: from, to: to, text: code, origin: origin});
+ }
+
+ // SCROLLING THINGS INTO VIEW
+
+ // If an editor sits on the top or bottom of the window, partially
+ // scrolled out of view, this ensures that the cursor is visible.
+ function maybeScrollWindow(cm, coords) {
+ if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
+
+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
+ if (coords.top + box.top < 0) doScroll = true;
+ else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
+ if (doScroll != null && !phantom) {
+ var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
+ (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
+ (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
+ coords.left + "px; width: 2px;");
+ cm.display.lineSpace.appendChild(scrollNode);
+ scrollNode.scrollIntoView(doScroll);
+ cm.display.lineSpace.removeChild(scrollNode);
+ }
+ }
+
+ // Scroll a given position into view (immediately), verifying that
+ // it actually became visible (as line heights are accurately
+ // measured, the position of something may 'drift' during drawing).
+ function scrollPosIntoView(cm, pos, end, margin) {
+ if (margin == null) margin = 0;
+ for (var limit = 0; limit < 5; limit++) {
+ var changed = false, coords = cursorCoords(cm, pos);
+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+ var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
+ Math.min(coords.top, endCoords.top) - margin,
+ Math.max(coords.left, endCoords.left),
+ Math.max(coords.bottom, endCoords.bottom) + margin);
+ var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
+ if (scrollPos.scrollTop != null) {
+ setScrollTop(cm, scrollPos.scrollTop);
+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
+ }
+ if (scrollPos.scrollLeft != null) {
+ setScrollLeft(cm, scrollPos.scrollLeft);
+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
+ }
+ if (!changed) break;
+ }
+ return coords;
+ }
+
+ // Scroll a given set of coordinates into view (immediately).
+ function scrollIntoView(cm, x1, y1, x2, y2) {
+ var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
+ if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
+ if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
+ }
+
+ // Calculate a new scroll position needed to scroll the given
+ // rectangle into view. Returns an object with scrollTop and
+ // scrollLeft properties. When these are undefined, the
+ // vertical/horizontal position does not need to be adjusted.
+ function calculateScrollPos(cm, x1, y1, x2, y2) {
+ var display = cm.display, snapMargin = textHeight(cm.display);
+ if (y1 < 0) y1 = 0;
+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
+ var screen = displayHeight(cm), result = {};
+ if (y2 - y1 > screen) y2 = y1 + screen;
+ var docBottom = cm.doc.height + paddingVert(display);
+ var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
+ if (y1 < screentop) {
+ result.scrollTop = atTop ? 0 : y1;
+ } else if (y2 > screentop + screen) {
+ var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
+ if (newTop != screentop) result.scrollTop = newTop;
+ }
+
+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
+ var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
+ var tooWide = x2 - x1 > screenw;
+ if (tooWide) x2 = x1 + screenw;
+ if (x1 < 10)
+ result.scrollLeft = 0;
+ else if (x1 < screenleft)
+ result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
+ else if (x2 > screenw + screenleft - 3)
+ result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
+ return result;
+ }
+
+ // Store a relative adjustment to the scroll position in the current
+ // operation (to be applied when the operation finishes).
+ function addToScrollPos(cm, left, top) {
+ if (left != null || top != null) resolveScrollToPos(cm);
+ if (left != null)
+ cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
+ if (top != null)
+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
+ }
+
+ // Make sure that at the end of the operation the current cursor is
+ // shown.
+ function ensureCursorVisible(cm) {
+ resolveScrollToPos(cm);
+ var cur = cm.getCursor(), from = cur, to = cur;
+ if (!cm.options.lineWrapping) {
+ from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
+ to = Pos(cur.line, cur.ch + 1);
+ }
+ cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
+ }
+
+ // When an operation has its scrollToPos property set, and another
+ // scroll action is applied before the end of the operation, this
+ // 'simulates' scrolling that position into view in a cheap way, so
+ // that the effect of intermediate scroll commands is not ignored.
+ function resolveScrollToPos(cm) {
+ var range = cm.curOp.scrollToPos;
+ if (range) {
+ cm.curOp.scrollToPos = null;
+ var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
+ var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
+ Math.min(from.top, to.top) - range.margin,
+ Math.max(from.right, to.right),
+ Math.max(from.bottom, to.bottom) + range.margin);
+ cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }
+
+ // API UTILITIES
+
+ // Indent the given line. The how parameter can be "smart",
+ // "add"/null, "subtract", or "prev". When aggressive is false
+ // (typically set to true for forced single-line indents), empty
+ // lines are not indented, and places where the mode returns Pass
+ // are left alone.
+ function indentLine(cm, n, how, aggressive) {
+ var doc = cm.doc, state;
+ if (how == null) how = "add";
+ if (how == "smart") {
+ // Fall back to "prev" when the mode doesn't have an indentation
+ // method.
+ if (!doc.mode.indent) how = "prev";
+ else state = getStateBefore(cm, n);
+ }
+
+ var tabSize = cm.options.tabSize;
+ var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
+ if (line.stateAfter) line.stateAfter = null;
+ var curSpaceString = line.text.match(/^\s*/)[0], indentation;
+ if (!aggressive && !/\S/.test(line.text)) {
+ indentation = 0;
+ how = "not";
+ } else if (how == "smart") {
+ indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+ if (indentation == Pass || indentation > 150) {
+ if (!aggressive) return;
+ how = "prev";
+ }
+ }
+ if (how == "prev") {
+ if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
+ else indentation = 0;
+ } else if (how == "add") {
+ indentation = curSpace + cm.options.indentUnit;
+ } else if (how == "subtract") {
+ indentation = curSpace - cm.options.indentUnit;
+ } else if (typeof how == "number") {
+ indentation = curSpace + how;
+ }
+ indentation = Math.max(0, indentation);
+
+ var indentString = "", pos = 0;
+ if (cm.options.indentWithTabs)
+ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
+ if (pos < indentation) indentString += spaceStr(indentation - pos);
+
+ if (indentString != curSpaceString) {
+ replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
+ line.stateAfter = null;
+ return true;
+ } else {
+ // Ensure that, if the cursor was in the whitespace at the start
+ // of the line, it is moved to the end of that space.
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ if (range.head.line == n && range.head.ch < curSpaceString.length) {
+ var pos = Pos(n, curSpaceString.length);
+ replaceOneSelection(doc, i, new Range(pos, pos));
+ break;
+ }
+ }
+ }
+ }
+
+ // Utility for applying a change to a line by handle or number,
+ // returning the number and optionally registering the line as
+ // changed.
+ function changeLine(doc, handle, changeType, op) {
+ var no = handle, line = handle;
+ if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
+ else no = lineNo(handle);
+ if (no == null) return null;
+ if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
+ return line;
+ }
+
+ // Helper for deleting text near the selection(s), used to implement
+ // backspace, delete, and similar functionality.
+ function deleteNearSelection(cm, compute) {
+ var ranges = cm.doc.sel.ranges, kill = [];
+ // Build up a set of ranges to kill first, merging overlapping
+ // ranges.
+ for (var i = 0; i < ranges.length; i++) {
+ var toKill = compute(ranges[i]);
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+ var replaced = kill.pop();
+ if (cmp(replaced.from, toKill.from) < 0) {
+ toKill.from = replaced.from;
+ break;
+ }
+ }
+ kill.push(toKill);
+ }
+ // Next, remove those actual ranges.
+ runInOp(cm, function() {
+ for (var i = kill.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
+ ensureCursorVisible(cm);
+ });
+ }
+
+ // Used for horizontal relative motion. Dir is -1 or 1 (left or
+ // right), unit can be "char", "column" (like char, but doesn't
+ // cross line boundaries), "word" (across next word), or "group" (to
+ // the start of next group of word or non-word-non-whitespace
+ // chars). The visually param controls whether, in right-to-left
+ // text, direction 1 means to move towards the next index in the
+ // string, or towards the character to the right of the current
+ // position. The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosH(doc, pos, dir, unit, visually) {
+ var line = pos.line, ch = pos.ch, origDir = dir;
+ var lineObj = getLine(doc, line);
+ var possible = true;
+ function findNextLine() {
+ var l = line + dir;
+ if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
+ line = l;
+ return lineObj = getLine(doc, l);
+ }
+ function moveOnce(boundToLine) {
+ var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
+ if (next == null) {
+ if (!boundToLine && findNextLine()) {
+ if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
+ else ch = dir < 0 ? lineObj.text.length : 0;
+ } else return (possible = false);
+ } else ch = next;
+ return true;
+ }
+
+ if (unit == "char") moveOnce();
+ else if (unit == "column") moveOnce(true);
+ else if (unit == "word" || unit == "group") {
+ var sawType = null, group = unit == "group";
+ var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+ for (var first = true;; first = false) {
+ if (dir < 0 && !moveOnce(!first)) break;
+ var cur = lineObj.text.charAt(ch) || "\n";
+ var type = isWordChar(cur, helper) ? "w"
+ : group && cur == "\n" ? "n"
+ : !group || /\s/.test(cur) ? null
+ : "p";
+ if (group && !first && !type) type = "s";
+ if (sawType && sawType != type) {
+ if (dir < 0) {dir = 1; moveOnce();}
+ break;
+ }
+
+ if (type) sawType = type;
+ if (dir > 0 && !moveOnce(!first)) break;
+ }
+ }
+ var result = skipAtomic(doc, Pos(line, ch), origDir, true);
+ if (!possible) result.hitSide = true;
+ return result;
+ }
+
+ // For relative vertical movement. Dir may be -1 or 1. Unit can be
+ // "page" or "line". The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosV(cm, pos, dir, unit) {
+ var doc = cm.doc, x = pos.left, y;
+ if (unit == "page") {
+ var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+ y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
+ } else if (unit == "line") {
+ y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+ }
+ for (;;) {
+ var target = coordsChar(cm, x, y);
+ if (!target.outside) break;
+ if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
+ y += dir * 5;
+ }
+ return target;
+ }
+
+ // EDITOR METHODS
+
+ // The publicly visible API. Note that methodOp(f) means
+ // 'wrap f in an operation, performed on its `this` parameter'.
+
+ // This is not the complete set of editor methods. Most of the
+ // methods defined on the Doc type are also injected into
+ // CodeMirror.prototype, for backwards compatibility and
+ // convenience.
+
+ CodeMirror.prototype = {
+ constructor: CodeMirror,
+ focus: function(){window.focus(); this.display.input.focus();},
+
+ setOption: function(option, value) {
+ var options = this.options, old = options[option];
+ if (options[option] == value && option != "mode") return;
+ options[option] = value;
+ if (optionHandlers.hasOwnProperty(option))
+ operation(this, optionHandlers[option])(this, value, old);
+ },
+
+ getOption: function(option) {return this.options[option];},
+ getDoc: function() {return this.doc;},
+
+ addKeyMap: function(map, bottom) {
+ this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
+ },
+ removeKeyMap: function(map) {
+ var maps = this.state.keyMaps;
+ for (var i = 0; i < maps.length; ++i)
+ if (maps[i] == map || maps[i].name == map) {
+ maps.splice(i, 1);
+ return true;
+ }
+ },
+
+ addOverlay: methodOp(function(spec, options) {
+ var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+ if (mode.startState) throw new Error("Overlays may not be stateful.");
+ this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
+ this.state.modeGen++;
+ regChange(this);
+ }),
+ removeOverlay: methodOp(function(spec) {
+ var overlays = this.state.overlays;
+ for (var i = 0; i < overlays.length; ++i) {
+ var cur = overlays[i].modeSpec;
+ if (cur == spec || typeof spec == "string" && cur.name == spec) {
+ overlays.splice(i, 1);
+ this.state.modeGen++;
+ regChange(this);
+ return;
+ }
+ }
+ }),
+
+ indentLine: methodOp(function(n, dir, aggressive) {
+ if (typeof dir != "string" && typeof dir != "number") {
+ if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
+ else dir = dir ? "add" : "subtract";
+ }
+ if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
+ }),
+ indentSelection: methodOp(function(how) {
+ var ranges = this.doc.sel.ranges, end = -1;
+ for (var i = 0; i < ranges.length; i++) {
+ var range = ranges[i];
+ if (!range.empty()) {
+ var from = range.from(), to = range.to();
+ var start = Math.max(end, from.line);
+ end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+ for (var j = start; j < end; ++j)
+ indentLine(this, j, how);
+ var newRanges = this.doc.sel.ranges;
+ if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+ replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
+ } else if (range.head.line > end) {
+ indentLine(this, range.head.line, how, true);
+ end = range.head.line;
+ if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
+ }
+ }
+ }),
+
+ // Fetch the parser token for a given character. Useful for hacks
+ // that want to inspect the mode state (say, for completion).
+ getTokenAt: function(pos, precise) {
+ return takeToken(this, pos, precise);
+ },
+
+ getLineTokens: function(line, precise) {
+ return takeToken(this, Pos(line), precise, true);
+ },
+
+ getTokenTypeAt: function(pos) {
+ pos = clipPos(this.doc, pos);
+ var styles = getLineStyles(this, getLine(this.doc, pos.line));
+ var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
+ var type;
+ if (ch == 0) type = styles[2];
+ else for (;;) {
+ var mid = (before + after) >> 1;
+ if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
+ else if (styles[mid * 2 + 1] < ch) before = mid + 1;
+ else { type = styles[mid * 2 + 2]; break; }
+ }
+ var cut = type ? type.indexOf("cm-overlay ") : -1;
+ return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
+ },
+
+ getModeAt: function(pos) {
+ var mode = this.doc.mode;
+ if (!mode.innerMode) return mode;
+ return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
+ },
+
+ getHelper: function(pos, type) {
+ return this.getHelpers(pos, type)[0];
+ },
+
+ getHelpers: function(pos, type) {
+ var found = [];
+ if (!helpers.hasOwnProperty(type)) return found;
+ var help = helpers[type], mode = this.getModeAt(pos);
+ if (typeof mode[type] == "string") {
+ if (help[mode[type]]) found.push(help[mode[type]]);
+ } else if (mode[type]) {
+ for (var i = 0; i < mode[type].length; i++) {
+ var val = help[mode[type][i]];
+ if (val) found.push(val);
+ }
+ } else if (mode.helperType && help[mode.helperType]) {
+ found.push(help[mode.helperType]);
+ } else if (help[mode.name]) {
+ found.push(help[mode.name]);
+ }
+ for (var i = 0; i < help._global.length; i++) {
+ var cur = help._global[i];
+ if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+ found.push(cur.val);
+ }
+ return found;
+ },
+
+ getStateAfter: function(line, precise) {
+ var doc = this.doc;
+ line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
+ return getStateBefore(this, line + 1, precise);
+ },
+
+ cursorCoords: function(start, mode) {
+ var pos, range = this.doc.sel.primary();
+ if (start == null) pos = range.head;
+ else if (typeof start == "object") pos = clipPos(this.doc, start);
+ else pos = start ? range.from() : range.to();
+ return cursorCoords(this, pos, mode || "page");
+ },
+
+ charCoords: function(pos, mode) {
+ return charCoords(this, clipPos(this.doc, pos), mode || "page");
+ },
+
+ coordsChar: function(coords, mode) {
+ coords = fromCoordSystem(this, coords, mode || "page");
+ return coordsChar(this, coords.left, coords.top);
+ },
+
+ lineAtHeight: function(height, mode) {
+ height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
+ return lineAtHeight(this.doc, height + this.display.viewOffset);
+ },
+ heightAtLine: function(line, mode) {
+ var end = false, lineObj;
+ if (typeof line == "number") {
+ var last = this.doc.first + this.doc.size - 1;
+ if (line < this.doc.first) line = this.doc.first;
+ else if (line > last) { line = last; end = true; }
+ lineObj = getLine(this.doc, line);
+ } else {
+ lineObj = line;
+ }
+ return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
+ (end ? this.doc.height - heightAtLine(lineObj) : 0);
+ },
+
+ defaultTextHeight: function() { return textHeight(this.display); },
+ defaultCharWidth: function() { return charWidth(this.display); },
+
+ setGutterMarker: methodOp(function(line, gutterID, value) {
+ return changeLine(this.doc, line, "gutter", function(line) {
+ var markers = line.gutterMarkers || (line.gutterMarkers = {});
+ markers[gutterID] = value;
+ if (!value && isEmpty(markers)) line.gutterMarkers = null;
+ return true;
+ });
+ }),
+
+ clearGutter: methodOp(function(gutterID) {
+ var cm = this, doc = cm.doc, i = doc.first;
+ doc.iter(function(line) {
+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+ line.gutterMarkers[gutterID] = null;
+ regLineChange(cm, i, "gutter");
+ if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
+ }
+ ++i;
+ });
+ }),
+
+ lineInfo: function(line) {
+ if (typeof line == "number") {
+ if (!isLine(this.doc, line)) return null;
+ var n = line;
+ line = getLine(this.doc, line);
+ if (!line) return null;
+ } else {
+ var n = lineNo(line);
+ if (n == null) return null;
+ }
+ return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+ textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+ widgets: line.widgets};
+ },
+
+ getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
+
+ addWidget: function(pos, node, scroll, vert, horiz) {
+ var display = this.display;
+ pos = cursorCoords(this, clipPos(this.doc, pos));
+ var top = pos.bottom, left = pos.left;
+ node.style.position = "absolute";
+ node.setAttribute("cm-ignore-events", "true");
+ this.display.input.setUneditable(node);
+ display.sizer.appendChild(node);
+ if (vert == "over") {
+ top = pos.top;
+ } else if (vert == "above" || vert == "near") {
+ var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+ hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
+ // Default to positioning above (if specified and possible); otherwise default to positioning below
+ if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+ top = pos.top - node.offsetHeight;
+ else if (pos.bottom + node.offsetHeight <= vspace)
+ top = pos.bottom;
+ if (left + node.offsetWidth > hspace)
+ left = hspace - node.offsetWidth;
+ }
+ node.style.top = top + "px";
+ node.style.left = node.style.right = "";
+ if (horiz == "right") {
+ left = display.sizer.clientWidth - node.offsetWidth;
+ node.style.right = "0px";
+ } else {
+ if (horiz == "left") left = 0;
+ else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
+ node.style.left = left + "px";
+ }
+ if (scroll)
+ scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
+ },
+
+ triggerOnKeyDown: methodOp(onKeyDown),
+ triggerOnKeyPress: methodOp(onKeyPress),
+ triggerOnKeyUp: onKeyUp,
+
+ execCommand: function(cmd) {
+ if (commands.hasOwnProperty(cmd))
+ return commands[cmd].call(null, this);
+ },
+
+ triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
+
+ findPosH: function(from, amount, unit, visually) {
+ var dir = 1;
+ if (amount < 0) { dir = -1; amount = -amount; }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ cur = findPosH(this.doc, cur, dir, unit, visually);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveH: methodOp(function(dir, unit) {
+ var cm = this;
+ cm.extendSelectionsBy(function(range) {
+ if (cm.display.shift || cm.doc.extend || range.empty())
+ return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
+ else
+ return dir < 0 ? range.from() : range.to();
+ }, sel_move);
+ }),
+
+ deleteH: methodOp(function(dir, unit) {
+ var sel = this.doc.sel, doc = this.doc;
+ if (sel.somethingSelected())
+ doc.replaceSelection("", null, "+delete");
+ else
+ deleteNearSelection(this, function(range) {
+ var other = findPosH(doc, range.head, dir, unit, false);
+ return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
+ });
+ }),
+
+ findPosV: function(from, amount, unit, goalColumn) {
+ var dir = 1, x = goalColumn;
+ if (amount < 0) { dir = -1; amount = -amount; }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ var coords = cursorCoords(this, cur, "div");
+ if (x == null) x = coords.left;
+ else coords.left = x;
+ cur = findPosV(this, coords, dir, unit);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveV: methodOp(function(dir, unit) {
+ var cm = this, doc = this.doc, goals = [];
+ var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
+ doc.extendSelectionsBy(function(range) {
+ if (collapse)
+ return dir < 0 ? range.from() : range.to();
+ var headPos = cursorCoords(cm, range.head, "div");
+ if (range.goalColumn != null) headPos.left = range.goalColumn;
+ goals.push(headPos.left);
+ var pos = findPosV(cm, headPos, dir, unit);
+ if (unit == "page" && range == doc.sel.primary())
+ addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
+ return pos;
+ }, sel_move);
+ if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
+ doc.sel.ranges[i].goalColumn = goals[i];
+ }),
+
+ // Find the word at the given position (as returned by coordsChar).
+ findWordAt: function(pos) {
+ var doc = this.doc, line = getLine(doc, pos.line).text;
+ var start = pos.ch, end = pos.ch;
+ if (line) {
+ var helper = this.getHelper(pos, "wordChars");
+ if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
+ var startChar = line.charAt(start);
+ var check = isWordChar(startChar, helper)
+ ? function(ch) { return isWordChar(ch, helper); }
+ : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
+ : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
+ while (start > 0 && check(line.charAt(start - 1))) --start;
+ while (end < line.length && check(line.charAt(end))) ++end;
+ }
+ return new Range(Pos(pos.line, start), Pos(pos.line, end));
+ },
+
+ toggleOverwrite: function(value) {
+ if (value != null && value == this.state.overwrite) return;
+ if (this.state.overwrite = !this.state.overwrite)
+ addClass(this.display.cursorDiv, "CodeMirror-overwrite");
+ else
+ rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
+
+ signal(this, "overwriteToggle", this, this.state.overwrite);
+ },
+ hasFocus: function() { return this.display.input.getField() == activeElt(); },
+
+ scrollTo: methodOp(function(x, y) {
+ if (x != null || y != null) resolveScrollToPos(this);
+ if (x != null) this.curOp.scrollLeft = x;
+ if (y != null) this.curOp.scrollTop = y;
+ }),
+ getScrollInfo: function() {
+ var scroller = this.display.scroller;
+ return {left: scroller.scrollLeft, top: scroller.scrollTop,
+ height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+ width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+ clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
+ },
+
+ scrollIntoView: methodOp(function(range, margin) {
+ if (range == null) {
+ range = {from: this.doc.sel.primary().head, to: null};
+ if (margin == null) margin = this.options.cursorScrollMargin;
+ } else if (typeof range == "number") {
+ range = {from: Pos(range, 0), to: null};
+ } else if (range.from == null) {
+ range = {from: range, to: null};
+ }
+ if (!range.to) range.to = range.from;
+ range.margin = margin || 0;
+
+ if (range.from.line != null) {
+ resolveScrollToPos(this);
+ this.curOp.scrollToPos = range;
+ } else {
+ var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
+ Math.min(range.from.top, range.to.top) - range.margin,
+ Math.max(range.from.right, range.to.right),
+ Math.max(range.from.bottom, range.to.bottom) + range.margin);
+ this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }),
+
+ setSize: methodOp(function(width, height) {
+ var cm = this;
+ function interpret(val) {
+ return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
+ }
+ if (width != null) cm.display.wrapper.style.width = interpret(width);
+ if (height != null) cm.display.wrapper.style.height = interpret(height);
+ if (cm.options.lineWrapping) clearLineMeasurementCache(this);
+ var lineNo = cm.display.viewFrom;
+ cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
+ if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
+ ++lineNo;
+ });
+ cm.curOp.forceUpdate = true;
+ signal(cm, "refresh", this);
+ }),
+
+ operation: function(f){return runInOp(this, f);},
+
+ refresh: methodOp(function() {
+ var oldHeight = this.display.cachedTextHeight;
+ regChange(this);
+ this.curOp.forceUpdate = true;
+ clearCaches(this);
+ this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
+ updateGutterSpace(this);
+ if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+ estimateLineHeights(this);
+ signal(this, "refresh", this);
+ }),
+
+ swapDoc: methodOp(function(doc) {
+ var old = this.doc;
+ old.cm = null;
+ attachDoc(this, doc);
+ clearCaches(this);
+ this.display.input.reset();
+ this.scrollTo(doc.scrollLeft, doc.scrollTop);
+ this.curOp.forceScroll = true;
+ signalLater(this, "swapDoc", this, old);
+ return old;
+ }),
+
+ getInputField: function(){return this.display.input.getField();},
+ getWrapperElement: function(){return this.display.wrapper;},
+ getScrollerElement: function(){return this.display.scroller;},
+ getGutterElement: function(){return this.display.gutters;}
+ };
+ eventMixin(CodeMirror);
+
+ // OPTION DEFAULTS
+
+ // The default configuration options.
+ var defaults = CodeMirror.defaults = {};
+ // Functions to run when options are changed.
+ var optionHandlers = CodeMirror.optionHandlers = {};
+
+ function option(name, deflt, handle, notOnInit) {
+ CodeMirror.defaults[name] = deflt;
+ if (handle) optionHandlers[name] =
+ notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
+ }
+
+ // Passed to option handlers when there is no old value.
+ var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
+
+ // These two are, on init, called from the constructor because they
+ // have to be initialized before the editor can start at all.
+ option("value", "", function(cm, val) {
+ cm.setValue(val);
+ }, true);
+ option("mode", null, function(cm, val) {
+ cm.doc.modeOption = val;
+ loadMode(cm);
+ }, true);
+
+ option("indentUnit", 2, loadMode, true);
+ option("indentWithTabs", false);
+ option("smartIndent", true);
+ option("tabSize", 4, function(cm) {
+ resetModeState(cm);
+ clearCaches(cm);
+ regChange(cm);
+ }, true);
+ option("lineSeparator", null, function(cm, val) {
+ cm.doc.lineSep = val;
+ if (!val) return;
+ var newBreaks = [], lineNo = cm.doc.first;
+ cm.doc.iter(function(line) {
+ for (var pos = 0;;) {
+ var found = line.text.indexOf(val, pos);
+ if (found == -1) break;
+ pos = found + val.length;
+ newBreaks.push(Pos(lineNo, found));
+ }
+ lineNo++;
+ });
+ for (var i = newBreaks.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
+ });
+ option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
+ cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
+ if (old != CodeMirror.Init) cm.refresh();
+ });
+ option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
+ option("electricChars", true);
+ option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
+ throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
+ }, true);
+ option("rtlMoveVisually", !windows);
+ option("wholeLineUpdateBefore", true);
+
+ option("theme", "default", function(cm) {
+ themeChanged(cm);
+ guttersChanged(cm);
+ }, true);
+ option("keyMap", "default", function(cm, val, old) {
+ var next = getKeyMap(val);
+ var prev = old != CodeMirror.Init && getKeyMap(old);
+ if (prev && prev.detach) prev.detach(cm, next);
+ if (next.attach) next.attach(cm, prev || null);
+ });
+ option("extraKeys", null);
+
+ option("lineWrapping", false, wrappingChanged, true);
+ option("gutters", [], function(cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ }, true);
+ option("fixedGutter", true, function(cm, val) {
+ cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
+ cm.refresh();
+ }, true);
+ option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
+ option("scrollbarStyle", "native", function(cm) {
+ initScrollbars(cm);
+ updateScrollbars(cm);
+ cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+ cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+ }, true);
+ option("lineNumbers", false, function(cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ }, true);
+ option("firstLineNumber", 1, guttersChanged, true);
+ option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
+ option("showCursorWhenSelecting", false, updateSelection, true);
+
+ option("resetSelectionOnContextMenu", true);
+ option("lineWiseCopyCut", true);
+
+ option("readOnly", false, function(cm, val) {
+ if (val == "nocursor") {
+ onBlur(cm);
+ cm.display.input.blur();
+ cm.display.disabled = true;
+ } else {
+ cm.display.disabled = false;
+ }
+ cm.display.input.readOnlyChanged(val)
+ });
+ option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
+ option("dragDrop", true, dragDropChanged);
+ option("allowDropFileTypes", null);
+
+ option("cursorBlinkRate", 530);
+ option("cursorScrollMargin", 0);
+ option("cursorHeight", 1, updateSelection, true);
+ option("singleCursorHeightPerLine", true, updateSelection, true);
+ option("workTime", 100);
+ option("workDelay", 100);
+ option("flattenSpans", true, resetModeState, true);
+ option("addModeClass", false, resetModeState, true);
+ option("pollInterval", 100);
+ option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
+ option("historyEventDelay", 1250);
+ option("viewportMargin", 10, function(cm){cm.refresh();}, true);
+ option("maxHighlightLength", 10000, resetModeState, true);
+ option("moveInputWithCursor", true, function(cm, val) {
+ if (!val) cm.display.input.resetPosition();
+ });
+
+ option("tabindex", null, function(cm, val) {
+ cm.display.input.getField().tabIndex = val || "";
+ });
+ option("autofocus", null);
+
+ // MODE DEFINITION AND QUERYING
+
+ // Known modes, by name and by MIME
+ var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
+
+ // Extra arguments are stored as the mode's dependencies, which is
+ // used by (legacy) mechanisms like loadmode.js to automatically
+ // load a mode. (Preferred mechanism is the require/define calls.)
+ CodeMirror.defineMode = function(name, mode) {
+ if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+ if (arguments.length > 2)
+ mode.dependencies = Array.prototype.slice.call(arguments, 2);
+ modes[name] = mode;
+ };
+
+ CodeMirror.defineMIME = function(mime, spec) {
+ mimeModes[mime] = spec;
+ };
+
+ // Given a MIME type, a {name, ...options} config object, or a name
+ // string, return a mode config object.
+ CodeMirror.resolveMode = function(spec) {
+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+ spec = mimeModes[spec];
+ } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+ var found = mimeModes[spec.name];
+ if (typeof found == "string") found = {name: found};
+ spec = createObj(found, spec);
+ spec.name = found.name;
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+ return CodeMirror.resolveMode("application/xml");
+ }
+ if (typeof spec == "string") return {name: spec};
+ else return spec || {name: "null"};
+ };
+
+ // Given a mode spec (anything that resolveMode accepts), find and
+ // initialize an actual mode object.
+ CodeMirror.getMode = function(options, spec) {
+ var spec = CodeMirror.resolveMode(spec);
+ var mfactory = modes[spec.name];
+ if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+ var modeObj = mfactory(options, spec);
+ if (modeExtensions.hasOwnProperty(spec.name)) {
+ var exts = modeExtensions[spec.name];
+ for (var prop in exts) {
+ if (!exts.hasOwnProperty(prop)) continue;
+ if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
+ modeObj[prop] = exts[prop];
+ }
+ }
+ modeObj.name = spec.name;
+ if (spec.helperType) modeObj.helperType = spec.helperType;
+ if (spec.modeProps) for (var prop in spec.modeProps)
+ modeObj[prop] = spec.modeProps[prop];
+
+ return modeObj;
+ };
+
+ // Minimal default mode.
+ CodeMirror.defineMode("null", function() {
+ return {token: function(stream) {stream.skipToEnd();}};
+ });
+ CodeMirror.defineMIME("text/plain", "null");
+
+ // This can be used to attach properties to mode objects from
+ // outside the actual mode definition.
+ var modeExtensions = CodeMirror.modeExtensions = {};
+ CodeMirror.extendMode = function(mode, properties) {
+ var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+ copyObj(properties, exts);
+ };
+
+ // EXTENSIONS
+
+ CodeMirror.defineExtension = function(name, func) {
+ CodeMirror.prototype[name] = func;
+ };
+ CodeMirror.defineDocExtension = function(name, func) {
+ Doc.prototype[name] = func;
+ };
+ CodeMirror.defineOption = option;
+
+ var initHooks = [];
+ CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
+
+ var helpers = CodeMirror.helpers = {};
+ CodeMirror.registerHelper = function(type, name, value) {
+ if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
+ helpers[type][name] = value;
+ };
+ CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+ CodeMirror.registerHelper(type, name, value);
+ helpers[type]._global.push({pred: predicate, val: value});
+ };
+
+ // MODE STATE HANDLING
+
+ // Utility functions for working with state. Exported because nested
+ // modes need to do this for their inner modes.
+
+ var copyState = CodeMirror.copyState = function(mode, state) {
+ if (state === true) return state;
+ if (mode.copyState) return mode.copyState(state);
+ var nstate = {};
+ for (var n in state) {
+ var val = state[n];
+ if (val instanceof Array) val = val.concat([]);
+ nstate[n] = val;
+ }
+ return nstate;
+ };
+
+ var startState = CodeMirror.startState = function(mode, a1, a2) {
+ return mode.startState ? mode.startState(a1, a2) : true;
+ };
+
+ // Given a mode and a state (for that mode), find the inner mode and
+ // state at the position that the state refers to.
+ CodeMirror.innerMode = function(mode, state) {
+ while (mode.innerMode) {
+ var info = mode.innerMode(state);
+ if (!info || info.mode == mode) break;
+ state = info.state;
+ mode = info.mode;
+ }
+ return info || {mode: mode, state: state};
+ };
+
+ // STANDARD COMMANDS
+
+ // Commands are parameter-less actions that can be performed on an
+ // editor, mostly used for keybindings.
+ var commands = CodeMirror.commands = {
+ selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
+ singleSelection: function(cm) {
+ cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
+ },
+ killLine: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ if (range.empty()) {
+ var len = getLine(cm.doc, range.head.line).text.length;
+ if (range.head.ch == len && range.head.line < cm.lastLine())
+ return {from: range.head, to: Pos(range.head.line + 1, 0)};
+ else
+ return {from: range.head, to: Pos(range.head.line, len)};
+ } else {
+ return {from: range.from(), to: range.to()};
+ }
+ });
+ },
+ deleteLine: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ return {from: Pos(range.from().line, 0),
+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
+ });
+ },
+ delLineLeft: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ return {from: Pos(range.from().line, 0), to: range.from()};
+ });
+ },
+ delWrappedLineLeft: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var leftPos = cm.coordsChar({left: 0, top: top}, "div");
+ return {from: leftPos, to: range.from()};
+ });
+ },
+ delWrappedLineRight: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+ return {from: range.from(), to: rightPos };
+ });
+ },
+ undo: function(cm) {cm.undo();},
+ redo: function(cm) {cm.redo();},
+ undoSelection: function(cm) {cm.undoSelection();},
+ redoSelection: function(cm) {cm.redoSelection();},
+ goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
+ goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
+ goLineStart: function(cm) {
+ cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
+ {origin: "+move", bias: 1});
+ },
+ goLineStartSmart: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ return lineStartSmart(cm, range.head);
+ }, {origin: "+move", bias: 1});
+ },
+ goLineEnd: function(cm) {
+ cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
+ {origin: "+move", bias: -1});
+ },
+ goLineRight: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+ }, sel_move);
+ },
+ goLineLeft: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({left: 0, top: top}, "div");
+ }, sel_move);
+ },
+ goLineLeftSmart: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var pos = cm.coordsChar({left: 0, top: top}, "div");
+ if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
+ return pos;
+ }, sel_move);
+ },
+ goLineUp: function(cm) {cm.moveV(-1, "line");},
+ goLineDown: function(cm) {cm.moveV(1, "line");},
+ goPageUp: function(cm) {cm.moveV(-1, "page");},
+ goPageDown: function(cm) {cm.moveV(1, "page");},
+ goCharLeft: function(cm) {cm.moveH(-1, "char");},
+ goCharRight: function(cm) {cm.moveH(1, "char");},
+ goColumnLeft: function(cm) {cm.moveH(-1, "column");},
+ goColumnRight: function(cm) {cm.moveH(1, "column");},
+ goWordLeft: function(cm) {cm.moveH(-1, "word");},
+ goGroupRight: function(cm) {cm.moveH(1, "group");},
+ goGroupLeft: function(cm) {cm.moveH(-1, "group");},
+ goWordRight: function(cm) {cm.moveH(1, "word");},
+ delCharBefore: function(cm) {cm.deleteH(-1, "char");},
+ delCharAfter: function(cm) {cm.deleteH(1, "char");},
+ delWordBefore: function(cm) {cm.deleteH(-1, "word");},
+ delWordAfter: function(cm) {cm.deleteH(1, "word");},
+ delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
+ delGroupAfter: function(cm) {cm.deleteH(1, "group");},
+ indentAuto: function(cm) {cm.indentSelection("smart");},
+ indentMore: function(cm) {cm.indentSelection("add");},
+ indentLess: function(cm) {cm.indentSelection("subtract");},
+ insertTab: function(cm) {cm.replaceSelection("\t");},
+ insertSoftTab: function(cm) {
+ var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].from();
+ var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+ spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
+ }
+ cm.replaceSelections(spaces);
+ },
+ defaultTab: function(cm) {
+ if (cm.somethingSelected()) cm.indentSelection("add");
+ else cm.execCommand("insertTab");
+ },
+ transposeChars: function(cm) {
+ runInOp(cm, function() {
+ var ranges = cm.listSelections(), newSel = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
+ if (line) {
+ if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
+ if (cur.ch > 0) {
+ cur = new Pos(cur.line, cur.ch + 1);
+ cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+ Pos(cur.line, cur.ch - 2), cur, "+transpose");
+ } else if (cur.line > cm.doc.first) {
+ var prev = getLine(cm.doc, cur.line - 1).text;
+ if (prev)
+ cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+ prev.charAt(prev.length - 1),
+ Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
+ }
+ }
+ newSel.push(new Range(cur, cur));
+ }
+ cm.setSelections(newSel);
+ });
+ },
+ newlineAndIndent: function(cm) {
+ runInOp(cm, function() {
+ var len = cm.listSelections().length;
+ for (var i = 0; i < len; i++) {
+ var range = cm.listSelections()[i];
+ cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input");
+ cm.indentLine(range.from().line + 1, null, true);
+ }
+ ensureCursorVisible(cm);
+ });
+ },
+ toggleOverwrite: function(cm) {cm.toggleOverwrite();}
+ };
+
+
+ // STANDARD KEYMAPS
+
+ var keyMap = CodeMirror.keyMap = {};
+
+ keyMap.basic = {
+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+ "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+ "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+ "Esc": "singleSelection"
+ };
+ // Note that the save and find-related commands aren't defined by
+ // default. User code or addons can define them. Unknown commands
+ // are simply ignored.
+ keyMap.pcDefault = {
+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+ "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+ "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+ "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+ fallthrough: "basic"
+ };
+ // Very basic readline/emacs-style bindings, which are standard on Mac.
+ keyMap.emacsy = {
+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+ "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+ "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
+ };
+ keyMap.macDefault = {
+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+ "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+ "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+ "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+ "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+ fallthrough: ["basic", "emacsy"]
+ };
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+ // KEYMAP DISPATCH
+
+ function normalizeKeyName(name) {
+ var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
+ var alt, ctrl, shift, cmd;
+ for (var i = 0; i < parts.length - 1; i++) {
+ var mod = parts[i];
+ if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
+ else if (/^a(lt)?$/i.test(mod)) alt = true;
+ else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
+ else if (/^s(hift)$/i.test(mod)) shift = true;
+ else throw new Error("Unrecognized modifier name: " + mod);
+ }
+ if (alt) name = "Alt-" + name;
+ if (ctrl) name = "Ctrl-" + name;
+ if (cmd) name = "Cmd-" + name;
+ if (shift) name = "Shift-" + name;
+ return name;
+ }
+
+ // This is a kludge to keep keymaps mostly working as raw objects
+ // (backwards compatibility) while at the same time support features
+ // like normalization and multi-stroke key bindings. It compiles a
+ // new normalized keymap, and then updates the old object to reflect
+ // this.
+ CodeMirror.normalizeKeyMap = function(keymap) {
+ var copy = {};
+ for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
+ var value = keymap[keyname];
+ if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
+ if (value == "...") { delete keymap[keyname]; continue; }
+
+ var keys = map(keyname.split(" "), normalizeKeyName);
+ for (var i = 0; i < keys.length; i++) {
+ var val, name;
+ if (i == keys.length - 1) {
+ name = keys.join(" ");
+ val = value;
+ } else {
+ name = keys.slice(0, i + 1).join(" ");
+ val = "...";
+ }
+ var prev = copy[name];
+ if (!prev) copy[name] = val;
+ else if (prev != val) throw new Error("Inconsistent bindings for " + name);
+ }
+ delete keymap[keyname];
+ }
+ for (var prop in copy) keymap[prop] = copy[prop];
+ return keymap;
+ };
+
+ var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
+ map = getKeyMap(map);
+ var found = map.call ? map.call(key, context) : map[key];
+ if (found === false) return "nothing";
+ if (found === "...") return "multi";
+ if (found != null && handle(found)) return "handled";
+
+ if (map.fallthrough) {
+ if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+ return lookupKey(key, map.fallthrough, handle, context);
+ for (var i = 0; i < map.fallthrough.length; i++) {
+ var result = lookupKey(key, map.fallthrough[i], handle, context);
+ if (result) return result;
+ }
+ }
+ };
+
+ // Modifier key presses don't count as 'real' key presses for the
+ // purpose of keymap fallthrough.
+ var isModifierKey = CodeMirror.isModifierKey = function(value) {
+ var name = typeof value == "string" ? value : keyNames[value.keyCode];
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+ };
+
+ // Look up the name of a key as indicated by an event object.
+ var keyName = CodeMirror.keyName = function(event, noShift) {
+ if (presto && event.keyCode == 34 && event["char"]) return false;
+ var base = keyNames[event.keyCode], name = base;
+ if (name == null || event.altGraphKey) return false;
+ if (event.altKey && base != "Alt") name = "Alt-" + name;
+ if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
+ if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
+ if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
+ return name;
+ };
+
+ function getKeyMap(val) {
+ return typeof val == "string" ? keyMap[val] : val;
+ }
+
+ // FROMTEXTAREA
+
+ CodeMirror.fromTextArea = function(textarea, options) {
+ options = options ? copyObj(options) : {};
+ options.value = textarea.value;
+ if (!options.tabindex && textarea.tabIndex)
+ options.tabindex = textarea.tabIndex;
+ if (!options.placeholder && textarea.placeholder)
+ options.placeholder = textarea.placeholder;
+ // Set autofocus to true if this textarea is focused, or if it has
+ // autofocus and no other element is focused.
+ if (options.autofocus == null) {
+ var hasFocus = activeElt();
+ options.autofocus = hasFocus == textarea ||
+ textarea.getAttribute("autofocus") != null && hasFocus == document.body;
+ }
+
+ function save() {textarea.value = cm.getValue();}
+ if (textarea.form) {
+ on(textarea.form, "submit", save);
+ // Deplorable hack to make the submit method do the right thing.
+ if (!options.leaveSubmitMethodAlone) {
+ var form = textarea.form, realSubmit = form.submit;
+ try {
+ var wrappedSubmit = form.submit = function() {
+ save();
+ form.submit = realSubmit;
+ form.submit();
+ form.submit = wrappedSubmit;
+ };
+ } catch(e) {}
+ }
+ }
+
+ options.finishInit = function(cm) {
+ cm.save = save;
+ cm.getTextArea = function() { return textarea; };
+ cm.toTextArea = function() {
+ cm.toTextArea = isNaN; // Prevent this from being ran twice
+ save();
+ textarea.parentNode.removeChild(cm.getWrapperElement());
+ textarea.style.display = "";
+ if (textarea.form) {
+ off(textarea.form, "submit", save);
+ if (typeof textarea.form.submit == "function")
+ textarea.form.submit = realSubmit;
+ }
+ };
+ };
+
+ textarea.style.display = "none";
+ var cm = CodeMirror(function(node) {
+ textarea.parentNode.insertBefore(node, textarea.nextSibling);
+ }, options);
+ return cm;
+ };
+
+ // STRING STREAM
+
+ // Fed to the mode parsers, provides helper functions to make
+ // parsers more succinct.
+
+ var StringStream = CodeMirror.StringStream = function(string, tabSize) {
+ this.pos = this.start = 0;
+ this.string = string;
+ this.tabSize = tabSize || 8;
+ this.lastColumnPos = this.lastColumnValue = 0;
+ this.lineStart = 0;
+ };
+
+ StringStream.prototype = {
+ eol: function() {return this.pos >= this.string.length;},
+ sol: function() {return this.pos == this.lineStart;},
+ peek: function() {return this.string.charAt(this.pos) || undefined;},
+ next: function() {
+ if (this.pos < this.string.length)
+ return this.string.charAt(this.pos++);
+ },
+ eat: function(match) {
+ var ch = this.string.charAt(this.pos);
+ if (typeof match == "string") var ok = ch == match;
+ else var ok = ch && (match.test ? match.test(ch) : match(ch));
+ if (ok) {++this.pos; return ch;}
+ },
+ eatWhile: function(match) {
+ var start = this.pos;
+ while (this.eat(match)){}
+ return this.pos > start;
+ },
+ eatSpace: function() {
+ var start = this.pos;
+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
+ return this.pos > start;
+ },
+ skipToEnd: function() {this.pos = this.string.length;},
+ skipTo: function(ch) {
+ var found = this.string.indexOf(ch, this.pos);
+ if (found > -1) {this.pos = found; return true;}
+ },
+ backUp: function(n) {this.pos -= n;},
+ column: function() {
+ if (this.lastColumnPos < this.start) {
+ this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+ this.lastColumnPos = this.start;
+ }
+ return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+ },
+ indentation: function() {
+ return countColumn(this.string, null, this.tabSize) -
+ (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+ },
+ match: function(pattern, consume, caseInsensitive) {
+ if (typeof pattern == "string") {
+ var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
+ var substr = this.string.substr(this.pos, pattern.length);
+ if (cased(substr) == cased(pattern)) {
+ if (consume !== false) this.pos += pattern.length;
+ return true;
+ }
+ } else {
+ var match = this.string.slice(this.pos).match(pattern);
+ if (match && match.index > 0) return null;
+ if (match && consume !== false) this.pos += match[0].length;
+ return match;
+ }
+ },
+ current: function(){return this.string.slice(this.start, this.pos);},
+ hideFirstChars: function(n, inner) {
+ this.lineStart += n;
+ try { return inner(); }
+ finally { this.lineStart -= n; }
+ }
+ };
+
+ // TEXTMARKERS
+
+ // Created with markText and setBookmark methods. A TextMarker is a
+ // handle that can be used to clear or find a marked position in the
+ // document. Line objects hold arrays (markedSpans) containing
+ // {from, to, marker} object pointing to such marker objects, and
+ // indicating that such a marker is present on that line. Multiple
+ // lines may point to the same marker when it spans across lines.
+ // The spans will have null for their from/to properties when the
+ // marker continues beyond the start/end of the line. Markers have
+ // links back to the lines they currently touch.
+
+ var nextMarkerId = 0;
+
+ var TextMarker = CodeMirror.TextMarker = function(doc, type) {
+ this.lines = [];
+ this.type = type;
+ this.doc = doc;
+ this.id = ++nextMarkerId;
+ };
+ eventMixin(TextMarker);
+
+ // Clear the marker.
+ TextMarker.prototype.clear = function() {
+ if (this.explicitlyCleared) return;
+ var cm = this.doc.cm, withOp = cm && !cm.curOp;
+ if (withOp) startOperation(cm);
+ if (hasHandler(this, "clear")) {
+ var found = this.find();
+ if (found) signalLater(this, "clear", found.from, found.to);
+ }
+ var min = null, max = null;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
+ else if (cm) {
+ if (span.to != null) max = lineNo(line);
+ if (span.from != null) min = lineNo(line);
+ }
+ line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+ if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+ updateLineHeight(line, textHeight(cm.display));
+ }
+ if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
+ var visual = visualLine(this.lines[i]), len = lineLength(visual);
+ if (len > cm.display.maxLineLength) {
+ cm.display.maxLine = visual;
+ cm.display.maxLineLength = len;
+ cm.display.maxLineChanged = true;
+ }
+ }
+
+ if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
+ this.lines.length = 0;
+ this.explicitlyCleared = true;
+ if (this.atomic && this.doc.cantEdit) {
+ this.doc.cantEdit = false;
+ if (cm) reCheckSelection(cm.doc);
+ }
+ if (cm) signalLater(cm, "markerCleared", cm, this);
+ if (withOp) endOperation(cm);
+ if (this.parent) this.parent.clear();
+ };
+
+ // Find the position of the marker in the document. Returns a {from,
+ // to} object by default. Side can be passed to get a specific side
+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+ // Pos objects returned contain a line object, rather than a line
+ // number (used to prevent looking up the same line twice).
+ TextMarker.prototype.find = function(side, lineObj) {
+ if (side == null && this.type == "bookmark") side = 1;
+ var from, to;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (span.from != null) {
+ from = Pos(lineObj ? line : lineNo(line), span.from);
+ if (side == -1) return from;
+ }
+ if (span.to != null) {
+ to = Pos(lineObj ? line : lineNo(line), span.to);
+ if (side == 1) return to;
+ }
+ }
+ return from && {from: from, to: to};
+ };
+
+ // Signals that the marker's widget changed, and surrounding layout
+ // should be recomputed.
+ TextMarker.prototype.changed = function() {
+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
+ if (!pos || !cm) return;
+ runInOp(cm, function() {
+ var line = pos.line, lineN = lineNo(pos.line);
+ var view = findViewForLine(cm, lineN);
+ if (view) {
+ clearLineMeasurementCacheFor(view);
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+ }
+ cm.curOp.updateMaxLine = true;
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+ var oldHeight = widget.height;
+ widget.height = null;
+ var dHeight = widgetHeight(widget) - oldHeight;
+ if (dHeight)
+ updateLineHeight(line, line.height + dHeight);
+ }
+ });
+ };
+
+ TextMarker.prototype.attachLine = function(line) {
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
+ }
+ this.lines.push(line);
+ };
+ TextMarker.prototype.detachLine = function(line) {
+ this.lines.splice(indexOf(this.lines, line), 1);
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+ }
+ };
+
+ // Collapsed markers have unique ids, in order to be able to order
+ // them, which is needed for uniquely determining an outer marker
+ // when they overlap (they may nest, but not partially overlap).
+ var nextMarkerId = 0;
+
+ // Create a marker, wire it up to the right lines, and
+ function markText(doc, from, to, options, type) {
+ // Shared markers (across linked documents) are handled separately
+ // (markTextShared will call out to this again, once per
+ // document).
+ if (options && options.shared) return markTextShared(doc, from, to, options, type);
+ // Ensure we are in an operation.
+ if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
+
+ var marker = new TextMarker(doc, type), diff = cmp(from, to);
+ if (options) copyObj(options, marker, false);
+ // Don't connect empty markers unless clearWhenEmpty is false
+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+ return marker;
+ if (marker.replacedWith) {
+ // Showing up as a widget implies collapsed (widget replaces text)
+ marker.collapsed = true;
+ marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
+ if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
+ if (options.insertLeft) marker.widgetNode.insertLeft = true;
+ }
+ if (marker.collapsed) {
+ if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+ from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+ throw new Error("Inserting collapsed marker partially overlapping an existing one");
+ sawCollapsedSpans = true;
+ }
+
+ if (marker.addToHistory)
+ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
+
+ var curLine = from.line, cm = doc.cm, updateMaxLine;
+ doc.iter(curLine, to.line + 1, function(line) {
+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+ updateMaxLine = true;
+ if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
+ addMarkedSpan(line, new MarkedSpan(marker,
+ curLine == from.line ? from.ch : null,
+ curLine == to.line ? to.ch : null));
+ ++curLine;
+ });
+ // lineIsHidden depends on the presence of the spans, so needs a second pass
+ if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
+ if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
+ });
+
+ if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
+
+ if (marker.readOnly) {
+ sawReadOnlySpans = true;
+ if (doc.history.done.length || doc.history.undone.length)
+ doc.clearHistory();
+ }
+ if (marker.collapsed) {
+ marker.id = ++nextMarkerId;
+ marker.atomic = true;
+ }
+ if (cm) {
+ // Sync editor state
+ if (updateMaxLine) cm.curOp.updateMaxLine = true;
+ if (marker.collapsed)
+ regChange(cm, from.line, to.line + 1);
+ else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+ for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
+ if (marker.atomic) reCheckSelection(cm.doc);
+ signalLater(cm, "markerAdded", cm, marker);
+ }
+ return marker;
+ }
+
+ // SHARED TEXTMARKERS
+
+ // A shared marker spans multiple linked documents. It is
+ // implemented as a meta-marker-object controlling multiple normal
+ // markers.
+ var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
+ this.markers = markers;
+ this.primary = primary;
+ for (var i = 0; i < markers.length; ++i)
+ markers[i].parent = this;
+ };
+ eventMixin(SharedTextMarker);
+
+ SharedTextMarker.prototype.clear = function() {
+ if (this.explicitlyCleared) return;
+ this.explicitlyCleared = true;
+ for (var i = 0; i < this.markers.length; ++i)
+ this.markers[i].clear();
+ signalLater(this, "clear");
+ };
+ SharedTextMarker.prototype.find = function(side, lineObj) {
+ return this.primary.find(side, lineObj);
+ };
+
+ function markTextShared(doc, from, to, options, type) {
+ options = copyObj(options);
+ options.shared = false;
+ var markers = [markText(doc, from, to, options, type)], primary = markers[0];
+ var widget = options.widgetNode;
+ linkedDocs(doc, function(doc) {
+ if (widget) options.widgetNode = widget.cloneNode(true);
+ markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
+ for (var i = 0; i < doc.linked.length; ++i)
+ if (doc.linked[i].isParent) return;
+ primary = lst(markers);
+ });
+ return new SharedTextMarker(markers, primary);
+ }
+
+ function findSharedMarkers(doc) {
+ return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
+ function(m) { return m.parent; });
+ }
+
+ function copySharedMarkers(doc, markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], pos = marker.find();
+ var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
+ if (cmp(mFrom, mTo)) {
+ var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
+ marker.markers.push(subMark);
+ subMark.parent = marker;
+ }
+ }
+ }
+
+ function detachSharedMarkers(markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], linked = [marker.primary.doc];;
+ linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
+ for (var j = 0; j < marker.markers.length; j++) {
+ var subMarker = marker.markers[j];
+ if (indexOf(linked, subMarker.doc) == -1) {
+ subMarker.parent = null;
+ marker.markers.splice(j--, 1);
+ }
+ }
+ }
+ }
+
+ // TEXTMARKER SPANS
+
+ function MarkedSpan(marker, from, to) {
+ this.marker = marker;
+ this.from = from; this.to = to;
+ }
+
+ // Search an array of spans for a span matching the given marker.
+ function getMarkedSpanFor(spans, marker) {
+ if (spans) for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.marker == marker) return span;
+ }
+ }
+ // Remove a span from an array, returning undefined if no spans are
+ // left (we don't store arrays for lines without spans).
+ function removeMarkedSpan(spans, span) {
+ for (var r, i = 0; i < spans.length; ++i)
+ if (spans[i] != span) (r || (r = [])).push(spans[i]);
+ return r;
+ }
+ // Add a span to a line.
+ function addMarkedSpan(line, span) {
+ line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
+ span.marker.attachLine(line);
+ }
+
+ // Used for the algorithm that adjusts markers for a change in the
+ // document. These functions cut an array of spans at a given
+ // character position, returning an array of remaining chunks (or
+ // undefined if nothing remains).
+ function markedSpansBefore(old, startCh, isInsert) {
+ if (old) for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i], marker = span.marker;
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+ if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
+ (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
+ }
+ }
+ return nw;
+ }
+ function markedSpansAfter(old, endCh, isInsert) {
+ if (old) for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i], marker = span.marker;
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+ if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
+ (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+ span.to == null ? null : span.to - endCh));
+ }
+ }
+ return nw;
+ }
+
+ // Given a change object, compute the new set of marker spans that
+ // cover the line in which the change took place. Removes spans
+ // entirely within the change, reconnects spans belonging to the
+ // same marker that appear on both sides of the change, and cuts off
+ // spans partially within the change. Returns an array of span
+ // arrays with one element for each line in (after) the change.
+ function stretchSpansOverChange(doc, change) {
+ if (change.full) return null;
+ var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
+ var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+ if (!oldFirst && !oldLast) return null;
+
+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
+ // Get the spans that 'stick out' on both sides
+ var first = markedSpansBefore(oldFirst, startCh, isInsert);
+ var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+ // Next, merge those two ends
+ var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
+ if (first) {
+ // Fix up .to properties of first
+ for (var i = 0; i < first.length; ++i) {
+ var span = first[i];
+ if (span.to == null) {
+ var found = getMarkedSpanFor(last, span.marker);
+ if (!found) span.to = startCh;
+ else if (sameLine) span.to = found.to == null ? null : found.to + offset;
+ }
+ }
+ }
+ if (last) {
+ // Fix up .from in last (or move them into first in case of sameLine)
+ for (var i = 0; i < last.length; ++i) {
+ var span = last[i];
+ if (span.to != null) span.to += offset;
+ if (span.from == null) {
+ var found = getMarkedSpanFor(first, span.marker);
+ if (!found) {
+ span.from = offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ } else {
+ span.from += offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ }
+ }
+ // Make sure we didn't create any zero-length spans
+ if (first) first = clearEmptySpans(first);
+ if (last && last != first) last = clearEmptySpans(last);
+
+ var newMarkers = [first];
+ if (!sameLine) {
+ // Fill gap with whole-line-spans
+ var gap = change.text.length - 2, gapMarkers;
+ if (gap > 0 && first)
+ for (var i = 0; i < first.length; ++i)
+ if (first[i].to == null)
+ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
+ for (var i = 0; i < gap; ++i)
+ newMarkers.push(gapMarkers);
+ newMarkers.push(last);
+ }
+ return newMarkers;
+ }
+
+ // Remove spans that are empty and don't have a clearWhenEmpty
+ // option of false.
+ function clearEmptySpans(spans) {
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+ spans.splice(i--, 1);
+ }
+ if (!spans.length) return null;
+ return spans;
+ }
+
+ // Used for un/re-doing changes from the history. Combines the
+ // result of computing the existing spans with the set of spans that
+ // existed in the history (so that deleting around a span and then
+ // undoing brings back the span).
+ function mergeOldSpans(doc, change) {
+ var old = getOldSpans(doc, change);
+ var stretched = stretchSpansOverChange(doc, change);
+ if (!old) return stretched;
+ if (!stretched) return old;
+
+ for (var i = 0; i < old.length; ++i) {
+ var oldCur = old[i], stretchCur = stretched[i];
+ if (oldCur && stretchCur) {
+ spans: for (var j = 0; j < stretchCur.length; ++j) {
+ var span = stretchCur[j];
+ for (var k = 0; k < oldCur.length; ++k)
+ if (oldCur[k].marker == span.marker) continue spans;
+ oldCur.push(span);
+ }
+ } else if (stretchCur) {
+ old[i] = stretchCur;
+ }
+ }
+ return old;
+ }
+
+ // Used to 'clip' out readOnly ranges when making a change.
+ function removeReadOnlyRanges(doc, from, to) {
+ var markers = null;
+ doc.iter(from.line, to.line + 1, function(line) {
+ if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
+ var mark = line.markedSpans[i].marker;
+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+ (markers || (markers = [])).push(mark);
+ }
+ });
+ if (!markers) return null;
+ var parts = [{from: from, to: to}];
+ for (var i = 0; i < markers.length; ++i) {
+ var mk = markers[i], m = mk.find(0);
+ for (var j = 0; j < parts.length; ++j) {
+ var p = parts[j];
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+ newParts.push({from: p.from, to: m.from});
+ if (dto > 0 || !mk.inclusiveRight && !dto)
+ newParts.push({from: m.to, to: p.to});
+ parts.splice.apply(parts, newParts);
+ j += newParts.length - 1;
+ }
+ }
+ return parts;
+ }
+
+ // Connect or disconnect spans from a line.
+ function detachMarkedSpans(line) {
+ var spans = line.markedSpans;
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i)
+ spans[i].marker.detachLine(line);
+ line.markedSpans = null;
+ }
+ function attachMarkedSpans(line, spans) {
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i)
+ spans[i].marker.attachLine(line);
+ line.markedSpans = spans;
+ }
+
+ // Helpers used when computing which overlapping collapsed span
+ // counts as the larger one.
+ function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
+ function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
+
+ // Returns a number indicating which of two overlapping collapsed
+ // spans is larger (and thus includes the other). Falls back to
+ // comparing ids when the spans cover exactly the same range.
+ function compareCollapsedMarkers(a, b) {
+ var lenDiff = a.lines.length - b.lines.length;
+ if (lenDiff != 0) return lenDiff;
+ var aPos = a.find(), bPos = b.find();
+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+ if (fromCmp) return -fromCmp;
+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+ if (toCmp) return toCmp;
+ return b.id - a.id;
+ }
+
+ // Find out whether a line ends or starts in a collapsed span. If
+ // so, return the marker for that span.
+ function collapsedSpanAtSide(line, start) {
+ var sps = sawCollapsedSpans && line.markedSpans, found;
+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+ found = sp.marker;
+ }
+ return found;
+ }
+ function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
+ function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
+
+ // Test whether there exists a collapsed span that partially
+ // overlaps (covers the start or end, but not both) of a new span.
+ // Such overlap is not allowed.
+ function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+ var line = getLine(doc, lineNo);
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps) for (var i = 0; i < sps.length; ++i) {
+ var sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ var found = sp.marker.find(0);
+ var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+ var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+ if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
+ if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
+ fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
+ return true;
+ }
+ }
+
+ // A visual line is a line as drawn on the screen. Folding, for
+ // example, can cause multiple logical lines to appear on the same
+ // visual line. This finds the start of the visual line that the
+ // given line is part of (usually that is the line itself).
+ function visualLine(line) {
+ var merged;
+ while (merged = collapsedSpanAtStart(line))
+ line = merged.find(-1, true).line;
+ return line;
+ }
+
+ // Returns an array of logical lines that continue the visual line
+ // started by the argument, or undefined if there are no such lines.
+ function visualLineContinued(line) {
+ var merged, lines;
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line;
+ (lines || (lines = [])).push(line);
+ }
+ return lines;
+ }
+
+ // Get the line number of the start of the visual line that the
+ // given line number is part of.
+ function visualLineNo(doc, lineN) {
+ var line = getLine(doc, lineN), vis = visualLine(line);
+ if (line == vis) return lineN;
+ return lineNo(vis);
+ }
+ // Get the line number of the start of the next visual line after
+ // the given line.
+ function visualLineEndNo(doc, lineN) {
+ if (lineN > doc.lastLine()) return lineN;
+ var line = getLine(doc, lineN), merged;
+ if (!lineIsHidden(doc, line)) return lineN;
+ while (merged = collapsedSpanAtEnd(line))
+ line = merged.find(1, true).line;
+ return lineNo(line) + 1;
+ }
+
+ // Compute whether a line is hidden. Lines count as hidden when they
+ // are part of a visual line that starts with another line, or when
+ // they are entirely covered by collapsed, non-widget span.
+ function lineIsHidden(doc, line) {
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ if (sp.from == null) return true;
+ if (sp.marker.widgetNode) continue;
+ if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+ return true;
+ }
+ }
+ function lineIsHiddenInner(doc, line, span) {
+ if (span.to == null) {
+ var end = span.marker.find(1, true);
+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
+ }
+ if (span.marker.inclusiveRight && span.to == line.text.length)
+ return true;
+ for (var sp, i = 0; i < line.markedSpans.length; ++i) {
+ sp = line.markedSpans[i];
+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+ (sp.to == null || sp.to != span.from) &&
+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+ lineIsHiddenInner(doc, line, sp)) return true;
+ }
+ }
+
+ // LINE WIDGETS
+
+ // Line widgets are block elements displayed above or below a line.
+
+ var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
+ if (options) for (var opt in options) if (options.hasOwnProperty(opt))
+ this[opt] = options[opt];
+ this.doc = doc;
+ this.node = node;
+ };
+ eventMixin(LineWidget);
+
+ function adjustScrollWhenAboveVisible(cm, line, diff) {
+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+ addToScrollPos(cm, null, diff);
+ }
+
+ LineWidget.prototype.clear = function() {
+ var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
+ if (no == null || !ws) return;
+ for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
+ if (!ws.length) line.widgets = null;
+ var height = widgetHeight(this);
+ updateLineHeight(line, Math.max(0, line.height - height));
+ if (cm) runInOp(cm, function() {
+ adjustScrollWhenAboveVisible(cm, line, -height);
+ regLineChange(cm, no, "widget");
+ });
+ };
+ LineWidget.prototype.changed = function() {
+ var oldH = this.height, cm = this.doc.cm, line = this.line;
+ this.height = null;
+ var diff = widgetHeight(this) - oldH;
+ if (!diff) return;
+ updateLineHeight(line, line.height + diff);
+ if (cm) runInOp(cm, function() {
+ cm.curOp.forceUpdate = true;
+ adjustScrollWhenAboveVisible(cm, line, diff);
+ });
+ };
+
+ function widgetHeight(widget) {
+ if (widget.height != null) return widget.height;
+ var cm = widget.doc.cm;
+ if (!cm) return 0;
+ if (!contains(document.body, widget.node)) {
+ var parentStyle = "position: relative;";
+ if (widget.coverGutter)
+ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
+ if (widget.noHScroll)
+ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
+ removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
+ }
+ return widget.height = widget.node.offsetHeight;
+ }
+
+ function addLineWidget(doc, handle, node, options) {
+ var widget = new LineWidget(doc, node, options);
+ var cm = doc.cm;
+ if (cm && widget.noHScroll) cm.display.alignWidgets = true;
+ changeLine(doc, handle, "widget", function(line) {
+ var widgets = line.widgets || (line.widgets = []);
+ if (widget.insertAt == null) widgets.push(widget);
+ else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
+ widget.line = line;
+ if (cm && !lineIsHidden(doc, line)) {
+ var aboveVisible = heightAtLine(line) < doc.scrollTop;
+ updateLineHeight(line, line.height + widgetHeight(widget));
+ if (aboveVisible) addToScrollPos(cm, null, widget.height);
+ cm.curOp.forceUpdate = true;
+ }
+ return true;
+ });
+ return widget;
+ }
+
+ // LINE DATA STRUCTURE
+
+ // Line objects. These hold state related to a line, including
+ // highlighting info (the styles array).
+ var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
+ this.text = text;
+ attachMarkedSpans(this, markedSpans);
+ this.height = estimateHeight ? estimateHeight(this) : 1;
+ };
+ eventMixin(Line);
+ Line.prototype.lineNo = function() { return lineNo(this); };
+
+ // Change the content (text, markers) of a line. Automatically
+ // invalidates cached information and tries to re-estimate the
+ // line's height.
+ function updateLine(line, text, markedSpans, estimateHeight) {
+ line.text = text;
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ if (line.order != null) line.order = null;
+ detachMarkedSpans(line);
+ attachMarkedSpans(line, markedSpans);
+ var estHeight = estimateHeight ? estimateHeight(line) : 1;
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ }
+
+ // Detach a line from the document tree and its markers.
+ function cleanUpLine(line) {
+ line.parent = null;
+ detachMarkedSpans(line);
+ }
+
+ function extractLineClasses(type, output) {
+ if (type) for (;;) {
+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+ if (!lineClass) break;
+ type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
+ var prop = lineClass[1] ? "bgClass" : "textClass";
+ if (output[prop] == null)
+ output[prop] = lineClass[2];
+ else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+ output[prop] += " " + lineClass[2];
+ }
+ return type;
+ }
+
+ function callBlankLine(mode, state) {
+ if (mode.blankLine) return mode.blankLine(state);
+ if (!mode.innerMode) return;
+ var inner = CodeMirror.innerMode(mode, state);
+ if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
+ }
+
+ function readToken(mode, stream, state, inner) {
+ for (var i = 0; i < 10; i++) {
+ if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
+ var style = mode.token(stream, state);
+ if (stream.pos > stream.start) return style;
+ }
+ throw new Error("Mode " + mode.name + " failed to advance stream.");
+ }
+
+ // Utility for getTokenAt and getLineTokens
+ function takeToken(cm, pos, precise, asArray) {
+ function getObj(copy) {
+ return {start: stream.start, end: stream.pos,
+ string: stream.current(),
+ type: style || null,
+ state: copy ? copyState(doc.mode, state) : state};
+ }
+
+ var doc = cm.doc, mode = doc.mode, style;
+ pos = clipPos(doc, pos);
+ var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
+ var stream = new StringStream(line.text, cm.options.tabSize), tokens;
+ if (asArray) tokens = [];
+ while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+ stream.start = stream.pos;
+ style = readToken(mode, stream, state);
+ if (asArray) tokens.push(getObj(true));
+ }
+ return asArray ? tokens : getObj();
+ }
+
+ // Run the given mode's parser over a line, calling f for each token.
+ function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+ var flattenSpans = mode.flattenSpans;
+ if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
+ var curStart = 0, curStyle = null;
+ var stream = new StringStream(text, cm.options.tabSize), style;
+ var inner = cm.options.addModeClass && [null];
+ if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
+ while (!stream.eol()) {
+ if (stream.pos > cm.options.maxHighlightLength) {
+ flattenSpans = false;
+ if (forceToEnd) processLine(cm, text, state, stream.pos);
+ stream.pos = text.length;
+ style = null;
+ } else {
+ style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
+ }
+ if (inner) {
+ var mName = inner[0].name;
+ if (mName) style = "m-" + (style ? mName + " " + style : mName);
+ }
+ if (!flattenSpans || curStyle != style) {
+ while (curStart < stream.start) {
+ curStart = Math.min(stream.start, curStart + 50000);
+ f(curStart, curStyle);
+ }
+ curStyle = style;
+ }
+ stream.start = stream.pos;
+ }
+ while (curStart < stream.pos) {
+ // Webkit seems to refuse to render text nodes longer than 57444 characters
+ var pos = Math.min(stream.pos, curStart + 50000);
+ f(pos, curStyle);
+ curStart = pos;
+ }
+ }
+
+ // Compute a style array (an array starting with a mode generation
+ // -- for invalidation -- followed by pairs of end positions and
+ // style strings), which is used to highlight the tokens on the
+ // line.
+ function highlightLine(cm, line, state, forceToEnd) {
+ // A styles array always starts with a number identifying the
+ // mode/overlays that it is based on (for easy invalidation).
+ var st = [cm.state.modeGen], lineClasses = {};
+ // Compute the base array of styles
+ runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
+ st.push(end, style);
+ }, lineClasses, forceToEnd);
+
+ // Run overlays, adjust style array.
+ for (var o = 0; o < cm.state.overlays.length; ++o) {
+ var overlay = cm.state.overlays[o], i = 1, at = 0;
+ runMode(cm, line.text, overlay.mode, true, function(end, style) {
+ var start = i;
+ // Ensure there's a token end at the current position, and that i points at it
+ while (at < end) {
+ var i_end = st[i];
+ if (i_end > end)
+ st.splice(i, 1, end, st[i+1], i_end);
+ i += 2;
+ at = Math.min(end, i_end);
+ }
+ if (!style) return;
+ if (overlay.opaque) {
+ st.splice(start, i - start, end, "cm-overlay " + style);
+ i = start + 2;
+ } else {
+ for (; start < i; start += 2) {
+ var cur = st[start+1];
+ st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
+ }
+ }
+ }, lineClasses);
+ }
+
+ return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
+ }
+
+ function getLineStyles(cm, line, updateFrontier) {
+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
+ var state = getStateBefore(cm, lineNo(line));
+ var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);
+ line.stateAfter = state;
+ line.styles = result.styles;
+ if (result.classes) line.styleClasses = result.classes;
+ else if (line.styleClasses) line.styleClasses = null;
+ if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
+ }
+ return line.styles;
+ }
+
+ // Lightweight form of highlight -- proceed over this line and
+ // update state, but don't save a style array. Used for lines that
+ // aren't currently visible.
+ function processLine(cm, text, state, startAt) {
+ var mode = cm.doc.mode;
+ var stream = new StringStream(text, cm.options.tabSize);
+ stream.start = stream.pos = startAt || 0;
+ if (text == "") callBlankLine(mode, state);
+ while (!stream.eol()) {
+ readToken(mode, stream, state);
+ stream.start = stream.pos;
+ }
+ }
+
+ // Convert a style as returned by a mode (either null, or a string
+ // containing one or more styles) to a CSS style. This is cached,
+ // and also looks for line-wide styles.
+ var styleToClassCache = {}, styleToClassCacheWithMode = {};
+ function interpretTokenStyle(style, options) {
+ if (!style || /^\s*$/.test(style)) return null;
+ var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
+ return cache[style] ||
+ (cache[style] = style.replace(/\S+/g, "cm-$&"));
+ }
+
+ // Render the DOM representation of the text of a line. Also builds
+ // up a 'line map', which points at the DOM nodes that represent
+ // specific stretches of text, and is used by the measuring code.
+ // The returned object contains the DOM node, this map, and
+ // information about line-wide styles that were set by the mode.
+ function buildLineContent(cm, lineView) {
+ // The padding-right forces the element to have a 'border', which
+ // is needed on Webkit to be able to get line-level bounding
+ // rectangles for it (in measureChar).
+ var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
+ var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
+ col: 0, pos: 0, cm: cm,
+ splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
+ lineView.measure = {};
+
+ // Iterate over the logical lines that make up this visual line.
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+ var line = i ? lineView.rest[i - 1] : lineView.line, order;
+ builder.pos = 0;
+ builder.addToken = buildToken;
+ // Optionally wire in some hacks into the token-rendering
+ // algorithm, to deal with browser quirks.
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
+ builder.addToken = buildTokenBadBidi(builder.addToken, order);
+ builder.map = [];
+ var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
+ insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
+ if (line.styleClasses) {
+ if (line.styleClasses.bgClass)
+ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
+ if (line.styleClasses.textClass)
+ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
+ }
+
+ // Ensure at least a single node is present, for measuring.
+ if (builder.map.length == 0)
+ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
+
+ // Store the map and a cache object for the current logical line
+ if (i == 0) {
+ lineView.measure.map = builder.map;
+ lineView.measure.cache = {};
+ } else {
+ (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
+ (lineView.measure.caches || (lineView.measure.caches = [])).push({});
+ }
+ }
+
+ // See issue #2901
+ if (webkit && /\bcm-tab\b/.test(builder.content.lastChild.className))
+ builder.content.className = "cm-tab-wrap-hack";
+
+ signal(cm, "renderLine", cm, lineView.line, builder.pre);
+ if (builder.pre.className)
+ builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
+
+ return builder;
+ }
+
+ function defaultSpecialCharPlaceholder(ch) {
+ var token = elt("span", "\u2022", "cm-invalidchar");
+ token.title = "\\u" + ch.charCodeAt(0).toString(16);
+ token.setAttribute("aria-label", token.title);
+ return token;
+ }
+
+ // Build up the DOM representation for a single token, and add it to
+ // the line map. Takes care to render special characters separately.
+ function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+ if (!text) return;
+ var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;
+ var special = builder.cm.state.specialChars, mustWrap = false;
+ if (!special.test(text)) {
+ builder.col += text.length;
+ var content = document.createTextNode(displayText);
+ builder.map.push(builder.pos, builder.pos + text.length, content);
+ if (ie && ie_version < 9) mustWrap = true;
+ builder.pos += text.length;
+ } else {
+ var content = document.createDocumentFragment(), pos = 0;
+ while (true) {
+ special.lastIndex = pos;
+ var m = special.exec(text);
+ var skipped = m ? m.index - pos : text.length - pos;
+ if (skipped) {
+ var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.map.push(builder.pos, builder.pos + skipped, txt);
+ builder.col += skipped;
+ builder.pos += skipped;
+ }
+ if (!m) break;
+ pos += skipped + 1;
+ if (m[0] == "\t") {
+ var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
+ var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
+ txt.setAttribute("role", "presentation");
+ txt.setAttribute("cm-text", "\t");
+ builder.col += tabWidth;
+ } else if (m[0] == "\r" || m[0] == "\n") {
+ var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
+ txt.setAttribute("cm-text", m[0]);
+ builder.col += 1;
+ } else {
+ var txt = builder.cm.options.specialCharPlaceholder(m[0]);
+ txt.setAttribute("cm-text", m[0]);
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.col += 1;
+ }
+ builder.map.push(builder.pos, builder.pos + 1, txt);
+ builder.pos++;
+ }
+ }
+ if (style || startStyle || endStyle || mustWrap || css) {
+ var fullStyle = style || "";
+ if (startStyle) fullStyle += startStyle;
+ if (endStyle) fullStyle += endStyle;
+ var token = elt("span", [content], fullStyle, css);
+ if (title) token.title = title;
+ return builder.content.appendChild(token);
+ }
+ builder.content.appendChild(content);
+ }
+
+ function splitSpaces(old) {
+ var out = " ";
+ for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
+ out += " ";
+ return out;
+ }
+
+ // Work around nonsense dimensions being reported for stretches of
+ // right-to-left text.
+ function buildTokenBadBidi(inner, order) {
+ return function(builder, text, style, startStyle, endStyle, title, css) {
+ style = style ? style + " cm-force-border" : "cm-force-border";
+ var start = builder.pos, end = start + text.length;
+ for (;;) {
+ // Find the part that overlaps with the start of this text
+ for (var i = 0; i < order.length; i++) {
+ var part = order[i];
+ if (part.to > start && part.from <= start) break;
+ }
+ if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
+ startStyle = null;
+ text = text.slice(part.to - start);
+ start = part.to;
+ }
+ };
+ }
+
+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+ var widget = !ignoreWidget && marker.widgetNode;
+ if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
+ if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+ if (!widget)
+ widget = builder.content.appendChild(document.createElement("span"));
+ widget.setAttribute("cm-marker", marker.id);
+ }
+ if (widget) {
+ builder.cm.display.input.setUneditable(widget);
+ builder.content.appendChild(widget);
+ }
+ builder.pos += size;
+ }
+
+ // Outputs a number of spans to make up a line, taking highlighting
+ // and marked text into account.
+ function insertLineContent(line, builder, styles) {
+ var spans = line.markedSpans, allText = line.text, at = 0;
+ if (!spans) {
+ for (var i = 1; i < styles.length; i+=2)
+ builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
+ return;
+ }
+
+ var len = allText.length, pos = 0, i = 1, text = "", style, css;
+ var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
+ for (;;) {
+ if (nextChange == pos) { // Update current marker set
+ spanStyle = spanEndStyle = spanStartStyle = title = css = "";
+ collapsed = null; nextChange = Infinity;
+ var foundBookmarks = [];
+ for (var j = 0; j < spans.length; ++j) {
+ var sp = spans[j], m = sp.marker;
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+ foundBookmarks.push(m);
+ } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+ if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+ nextChange = sp.to;
+ spanEndStyle = "";
+ }
+ if (m.className) spanStyle += " " + m.className;
+ if (m.css) css = m.css;
+ if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
+ if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
+ if (m.title && !title) title = m.title;
+ if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+ collapsed = sp;
+ } else if (sp.from > pos && nextChange > sp.from) {
+ nextChange = sp.from;
+ }
+ }
+ if (collapsed && (collapsed.from || 0) == pos) {
+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+ collapsed.marker, collapsed.from == null);
+ if (collapsed.to == null) return;
+ if (collapsed.to == pos) collapsed = false;
+ }
+ if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
+ buildCollapsedSpan(builder, 0, foundBookmarks[j]);
+ }
+ if (pos >= len) break;
+
+ var upto = Math.min(len, nextChange);
+ while (true) {
+ if (text) {
+ var end = pos + text.length;
+ if (!collapsed) {
+ var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+ builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+ spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
+ }
+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+ pos = end;
+ spanStartStyle = "";
+ }
+ text = allText.slice(at, at = styles[i++]);
+ style = interpretTokenStyle(styles[i++], builder.cm.options);
+ }
+ }
+ }
+
+ // DOCUMENT DATA STRUCTURE
+
+ // By default, updates that start and end at the beginning of a line
+ // are treated specially, in order to make the association of line
+ // widgets and marker elements with the text behave more intuitive.
+ function isWholeLineUpdate(doc, change) {
+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
+ }
+
+ // Perform a change on the document data structure.
+ function updateDoc(doc, change, markedSpans, estimateHeight) {
+ function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
+ function update(line, text, spans) {
+ updateLine(line, text, spans, estimateHeight);
+ signalLater(line, "change", line, change);
+ }
+ function linesFor(start, end) {
+ for (var i = start, result = []; i < end; ++i)
+ result.push(new Line(text[i], spansFor(i), estimateHeight));
+ return result;
+ }
+
+ var from = change.from, to = change.to, text = change.text;
+ var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
+ var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
+
+ // Adjust the line structure
+ if (change.full) {
+ doc.insert(0, linesFor(0, text.length));
+ doc.remove(text.length, doc.size - text.length);
+ } else if (isWholeLineUpdate(doc, change)) {
+ // This is a whole-line replace. Treated specially to make
+ // sure line objects move the way they are supposed to.
+ var added = linesFor(0, text.length - 1);
+ update(lastLine, lastLine.text, lastSpans);
+ if (nlines) doc.remove(from.line, nlines);
+ if (added.length) doc.insert(from.line, added);
+ } else if (firstLine == lastLine) {
+ if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
+ } else {
+ var added = linesFor(1, text.length - 1);
+ added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+ doc.insert(from.line + 1, added);
+ }
+ } else if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
+ doc.remove(from.line + 1, nlines);
+ } else {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+ var added = linesFor(1, text.length - 1);
+ if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
+ doc.insert(from.line + 1, added);
+ }
+
+ signalLater(doc, "change", doc, change);
+ }
+
+ // The document is represented as a BTree consisting of leaves, with
+ // chunk of lines in them, and branches, with up to ten leaves or
+ // other branch nodes below them. The top node is always a branch
+ // node, and is the document object itself (meaning it has
+ // additional methods and properties).
+ //
+ // All nodes have parent links. The tree is used both to go from
+ // line numbers to line objects, and to go from objects to numbers.
+ // It also indexes by height, and is used to convert between height
+ // and line object, and to find the total height of the document.
+ //
+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+ function LeafChunk(lines) {
+ this.lines = lines;
+ this.parent = null;
+ for (var i = 0, height = 0; i < lines.length; ++i) {
+ lines[i].parent = this;
+ height += lines[i].height;
+ }
+ this.height = height;
+ }
+
+ LeafChunk.prototype = {
+ chunkSize: function() { return this.lines.length; },
+ // Remove the n lines at offset 'at'.
+ removeInner: function(at, n) {
+ for (var i = at, e = at + n; i < e; ++i) {
+ var line = this.lines[i];
+ this.height -= line.height;
+ cleanUpLine(line);
+ signalLater(line, "delete");
+ }
+ this.lines.splice(at, n);
+ },
+ // Helper used to collapse a small branch into a single leaf.
+ collapse: function(lines) {
+ lines.push.apply(lines, this.lines);
+ },
+ // Insert the given array of lines at offset 'at', count them as
+ // having the given height.
+ insertInner: function(at, lines, height) {
+ this.height += height;
+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+ for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
+ },
+ // Used to iterate over a part of the tree.
+ iterN: function(at, n, op) {
+ for (var e = at + n; at < e; ++at)
+ if (op(this.lines[at])) return true;
+ }
+ };
+
+ function BranchChunk(children) {
+ this.children = children;
+ var size = 0, height = 0;
+ for (var i = 0; i < children.length; ++i) {
+ var ch = children[i];
+ size += ch.chunkSize(); height += ch.height;
+ ch.parent = this;
+ }
+ this.size = size;
+ this.height = height;
+ this.parent = null;
+ }
+
+ BranchChunk.prototype = {
+ chunkSize: function() { return this.size; },
+ removeInner: function(at, n) {
+ this.size -= n;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var rm = Math.min(n, sz - at), oldHeight = child.height;
+ child.removeInner(at, rm);
+ this.height -= oldHeight - child.height;
+ if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+ if ((n -= rm) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ // If the result is smaller than 25 lines, ensure that it is a
+ // single leaf node.
+ if (this.size - n < 25 &&
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+ var lines = [];
+ this.collapse(lines);
+ this.children = [new LeafChunk(lines)];
+ this.children[0].parent = this;
+ }
+ },
+ collapse: function(lines) {
+ for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
+ },
+ insertInner: function(at, lines, height) {
+ this.size += lines.length;
+ this.height += height;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at <= sz) {
+ child.insertInner(at, lines, height);
+ if (child.lines && child.lines.length > 50) {
+ while (child.lines.length > 50) {
+ var spilled = child.lines.splice(child.lines.length - 25, 25);
+ var newleaf = new LeafChunk(spilled);
+ child.height -= newleaf.height;
+ this.children.splice(i + 1, 0, newleaf);
+ newleaf.parent = this;
+ }
+ this.maybeSpill();
+ }
+ break;
+ }
+ at -= sz;
+ }
+ },
+ // When a node has grown, check whether it should be split.
+ maybeSpill: function() {
+ if (this.children.length <= 10) return;
+ var me = this;
+ do {
+ var spilled = me.children.splice(me.children.length - 5, 5);
+ var sibling = new BranchChunk(spilled);
+ if (!me.parent) { // Become the parent node
+ var copy = new BranchChunk(me.children);
+ copy.parent = me;
+ me.children = [copy, sibling];
+ me = copy;
+ } else {
+ me.size -= sibling.size;
+ me.height -= sibling.height;
+ var myIndex = indexOf(me.parent.children, me);
+ me.parent.children.splice(myIndex + 1, 0, sibling);
+ }
+ sibling.parent = me.parent;
+ } while (me.children.length > 10);
+ me.parent.maybeSpill();
+ },
+ iterN: function(at, n, op) {
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var used = Math.min(n, sz - at);
+ if (child.iterN(at, used, op)) return true;
+ if ((n -= used) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ }
+ };
+
+ var nextDocId = 0;
+ var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) {
+ if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);
+ if (firstLine == null) firstLine = 0;
+
+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+ this.first = firstLine;
+ this.scrollTop = this.scrollLeft = 0;
+ this.cantEdit = false;
+ this.cleanGeneration = 1;
+ this.frontier = firstLine;
+ var start = Pos(firstLine, 0);
+ this.sel = simpleSelection(start);
+ this.history = new History(null);
+ this.id = ++nextDocId;
+ this.modeOption = mode;
+ this.lineSep = lineSep;
+
+ if (typeof text == "string") text = this.splitLines(text);
+ updateDoc(this, {from: start, to: start, text: text});
+ setSelection(this, simpleSelection(start), sel_dontScroll);
+ };
+
+ Doc.prototype = createObj(BranchChunk.prototype, {
+ constructor: Doc,
+ // Iterate over the document. Supports two forms -- with only one
+ // argument, it calls that for each line in the document. With
+ // three, it iterates over the range given by the first two (with
+ // the second being non-inclusive).
+ iter: function(from, to, op) {
+ if (op) this.iterN(from - this.first, to - from, op);
+ else this.iterN(this.first, this.first + this.size, from);
+ },
+
+ // Non-public interface for adding and removing lines.
+ insert: function(at, lines) {
+ var height = 0;
+ for (var i = 0; i < lines.length; ++i) height += lines[i].height;
+ this.insertInner(at - this.first, lines, height);
+ },
+ remove: function(at, n) { this.removeInner(at - this.first, n); },
+
+ // From here, the methods are part of the public interface. Most
+ // are also available from CodeMirror (editor) instances.
+
+ getValue: function(lineSep) {
+ var lines = getLines(this, this.first, this.first + this.size);
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+ setValue: docMethodOp(function(code) {
+ var top = Pos(this.first, 0), last = this.first + this.size - 1;
+ makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+ text: this.splitLines(code), origin: "setValue", full: true}, true);
+ setSelection(this, simpleSelection(top));
+ }),
+ replaceRange: function(code, from, to, origin) {
+ from = clipPos(this, from);
+ to = to ? clipPos(this, to) : from;
+ replaceRange(this, code, from, to, origin);
+ },
+ getRange: function(from, to, lineSep) {
+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+
+ getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
+
+ getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
+ getLineNumber: function(line) {return lineNo(line);},
+
+ getLineHandleVisualStart: function(line) {
+ if (typeof line == "number") line = getLine(this, line);
+ return visualLine(line);
+ },
+
+ lineCount: function() {return this.size;},
+ firstLine: function() {return this.first;},
+ lastLine: function() {return this.first + this.size - 1;},
+
+ clipPos: function(pos) {return clipPos(this, pos);},
+
+ getCursor: function(start) {
+ var range = this.sel.primary(), pos;
+ if (start == null || start == "head") pos = range.head;
+ else if (start == "anchor") pos = range.anchor;
+ else if (start == "end" || start == "to" || start === false) pos = range.to();
+ else pos = range.from();
+ return pos;
+ },
+ listSelections: function() { return this.sel.ranges; },
+ somethingSelected: function() {return this.sel.somethingSelected();},
+
+ setCursor: docMethodOp(function(line, ch, options) {
+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
+ }),
+ setSelection: docMethodOp(function(anchor, head, options) {
+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
+ }),
+ extendSelection: docMethodOp(function(head, other, options) {
+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
+ }),
+ extendSelections: docMethodOp(function(heads, options) {
+ extendSelections(this, clipPosArray(this, heads, options));
+ }),
+ extendSelectionsBy: docMethodOp(function(f, options) {
+ extendSelections(this, map(this.sel.ranges, f), options);
+ }),
+ setSelections: docMethodOp(function(ranges, primary, options) {
+ if (!ranges.length) return;
+ for (var i = 0, out = []; i < ranges.length; i++)
+ out[i] = new Range(clipPos(this, ranges[i].anchor),
+ clipPos(this, ranges[i].head));
+ if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
+ setSelection(this, normalizeSelection(out, primary), options);
+ }),
+ addSelection: docMethodOp(function(anchor, head, options) {
+ var ranges = this.sel.ranges.slice(0);
+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
+ setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
+ }),
+
+ getSelection: function(lineSep) {
+ var ranges = this.sel.ranges, lines;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ lines = lines ? lines.concat(sel) : sel;
+ }
+ if (lineSep === false) return lines;
+ else return lines.join(lineSep || this.lineSeparator());
+ },
+ getSelections: function(lineSep) {
+ var parts = [], ranges = this.sel.ranges;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());
+ parts[i] = sel;
+ }
+ return parts;
+ },
+ replaceSelection: function(code, collapse, origin) {
+ var dup = [];
+ for (var i = 0; i < this.sel.ranges.length; i++)
+ dup[i] = code;
+ this.replaceSelections(dup, collapse, origin || "+input");
+ },
+ replaceSelections: docMethodOp(function(code, collapse, origin) {
+ var changes = [], sel = this.sel;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
+ }
+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
+ for (var i = changes.length - 1; i >= 0; i--)
+ makeChange(this, changes[i]);
+ if (newSel) setSelectionReplaceHistory(this, newSel);
+ else if (this.cm) ensureCursorVisible(this.cm);
+ }),
+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
+
+ setExtending: function(val) {this.extend = val;},
+ getExtending: function() {return this.extend;},
+
+ historySize: function() {
+ var hist = this.history, done = 0, undone = 0;
+ for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
+ for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
+ return {undo: done, redo: undone};
+ },
+ clearHistory: function() {this.history = new History(this.history.maxGeneration);},
+
+ markClean: function() {
+ this.cleanGeneration = this.changeGeneration(true);
+ },
+ changeGeneration: function(forceSplit) {
+ if (forceSplit)
+ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
+ return this.history.generation;
+ },
+ isClean: function (gen) {
+ return this.history.generation == (gen || this.cleanGeneration);
+ },
+
+ getHistory: function() {
+ return {done: copyHistoryArray(this.history.done),
+ undone: copyHistoryArray(this.history.undone)};
+ },
+ setHistory: function(histData) {
+ var hist = this.history = new History(this.history.maxGeneration);
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+ },
+
+ addLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass";
+ if (!line[prop]) line[prop] = cls;
+ else if (classTest(cls).test(line[prop])) return false;
+ else line[prop] += " " + cls;
+ return true;
+ });
+ }),
+ removeLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass";
+ var cur = line[prop];
+ if (!cur) return false;
+ else if (cls == null) line[prop] = null;
+ else {
+ var found = cur.match(classTest(cls));
+ if (!found) return false;
+ var end = found.index + found[0].length;
+ line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
+ }
+ return true;
+ });
+ }),
+
+ addLineWidget: docMethodOp(function(handle, node, options) {
+ return addLineWidget(this, handle, node, options);
+ }),
+ removeLineWidget: function(widget) { widget.clear(); },
+
+ markText: function(from, to, options) {
+ return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
+ },
+ setBookmark: function(pos, options) {
+ var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+ insertLeft: options && options.insertLeft,
+ clearWhenEmpty: false, shared: options && options.shared,
+ handleMouseEvents: options && options.handleMouseEvents};
+ pos = clipPos(this, pos);
+ return markText(this, pos, pos, realOpts, "bookmark");
+ },
+ findMarksAt: function(pos) {
+ pos = clipPos(this, pos);
+ var markers = [], spans = getLine(this, pos.line).markedSpans;
+ if (spans) for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if ((span.from == null || span.from <= pos.ch) &&
+ (span.to == null || span.to >= pos.ch))
+ markers.push(span.marker.parent || span.marker);
+ }
+ return markers;
+ },
+ findMarks: function(from, to, filter) {
+ from = clipPos(this, from); to = clipPos(this, to);
+ var found = [], lineNo = from.line;
+ this.iter(from.line, to.line + 1, function(line) {
+ var spans = line.markedSpans;
+ if (spans) for (var i = 0; i < spans.length; i++) {
+ var span = spans[i];
+ if (!(lineNo == from.line && from.ch > span.to ||
+ span.from == null && lineNo != from.line||
+ lineNo == to.line && span.from > to.ch) &&
+ (!filter || filter(span.marker)))
+ found.push(span.marker.parent || span.marker);
+ }
+ ++lineNo;
+ });
+ return found;
+ },
+ getAllMarks: function() {
+ var markers = [];
+ this.iter(function(line) {
+ var sps = line.markedSpans;
+ if (sps) for (var i = 0; i < sps.length; ++i)
+ if (sps[i].from != null) markers.push(sps[i].marker);
+ });
+ return markers;
+ },
+
+ posFromIndex: function(off) {
+ var ch, lineNo = this.first;
+ this.iter(function(line) {
+ var sz = line.text.length + 1;
+ if (sz > off) { ch = off; return true; }
+ off -= sz;
+ ++lineNo;
+ });
+ return clipPos(this, Pos(lineNo, ch));
+ },
+ indexFromPos: function (coords) {
+ coords = clipPos(this, coords);
+ var index = coords.ch;
+ if (coords.line < this.first || coords.ch < 0) return 0;
+ this.iter(this.first, coords.line, function (line) {
+ index += line.text.length + 1;
+ });
+ return index;
+ },
+
+ copy: function(copyHistory) {
+ var doc = new Doc(getLines(this, this.first, this.first + this.size),
+ this.modeOption, this.first, this.lineSep);
+ doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
+ doc.sel = this.sel;
+ doc.extend = false;
+ if (copyHistory) {
+ doc.history.undoDepth = this.history.undoDepth;
+ doc.setHistory(this.getHistory());
+ }
+ return doc;
+ },
+
+ linkedDoc: function(options) {
+ if (!options) options = {};
+ var from = this.first, to = this.first + this.size;
+ if (options.from != null && options.from > from) from = options.from;
+ if (options.to != null && options.to < to) to = options.to;
+ var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep);
+ if (options.sharedHist) copy.history = this.history;
+ (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
+ copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
+ copySharedMarkers(copy, findSharedMarkers(this));
+ return copy;
+ },
+ unlinkDoc: function(other) {
+ if (other instanceof CodeMirror) other = other.doc;
+ if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
+ var link = this.linked[i];
+ if (link.doc != other) continue;
+ this.linked.splice(i, 1);
+ other.unlinkDoc(this);
+ detachSharedMarkers(findSharedMarkers(this));
+ break;
+ }
+ // If the histories were shared, split them again
+ if (other.history == this.history) {
+ var splitIds = [other.id];
+ linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
+ other.history = new History(null);
+ other.history.done = copyHistoryArray(this.history.done, splitIds);
+ other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+ }
+ },
+ iterLinkedDocs: function(f) {linkedDocs(this, f);},
+
+ getMode: function() {return this.mode;},
+ getEditor: function() {return this.cm;},
+
+ splitLines: function(str) {
+ if (this.lineSep) return str.split(this.lineSep);
+ return splitLinesAuto(str);
+ },
+ lineSeparator: function() { return this.lineSep || "\n"; }
+ });
+
+ // Public alias.
+ Doc.prototype.eachLine = Doc.prototype.iter;
+
+ // Set up methods on CodeMirror's prototype to redirect to the editor's document.
+ var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+ for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+ CodeMirror.prototype[prop] = (function(method) {
+ return function() {return method.apply(this.doc, arguments);};
+ })(Doc.prototype[prop]);
+
+ eventMixin(Doc);
+
+ // Call f for all linked documents.
+ function linkedDocs(doc, f, sharedHistOnly) {
+ function propagate(doc, skip, sharedHist) {
+ if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
+ var rel = doc.linked[i];
+ if (rel.doc == skip) continue;
+ var shared = sharedHist && rel.sharedHist;
+ if (sharedHistOnly && !shared) continue;
+ f(rel.doc, shared);
+ propagate(rel.doc, doc, shared);
+ }
+ }
+ propagate(doc, null, true);
+ }
+
+ // Attach a document to an editor.
+ function attachDoc(cm, doc) {
+ if (doc.cm) throw new Error("This document is already in use.");
+ cm.doc = doc;
+ doc.cm = cm;
+ estimateLineHeights(cm);
+ loadMode(cm);
+ if (!cm.options.lineWrapping) findMaxLine(cm);
+ cm.options.mode = doc.modeOption;
+ regChange(cm);
+ }
+
+ // LINE UTILITIES
+
+ // Find the line object corresponding to the given line number.
+ function getLine(doc, n) {
+ n -= doc.first;
+ if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
+ for (var chunk = doc; !chunk.lines;) {
+ for (var i = 0;; ++i) {
+ var child = chunk.children[i], sz = child.chunkSize();
+ if (n < sz) { chunk = child; break; }
+ n -= sz;
+ }
+ }
+ return chunk.lines[n];
+ }
+
+ // Get the part of a document between two positions, as an array of
+ // strings.
+ function getBetween(doc, start, end) {
+ var out = [], n = start.line;
+ doc.iter(start.line, end.line + 1, function(line) {
+ var text = line.text;
+ if (n == end.line) text = text.slice(0, end.ch);
+ if (n == start.line) text = text.slice(start.ch);
+ out.push(text);
+ ++n;
+ });
+ return out;
+ }
+ // Get the lines between from and to, as array of strings.
+ function getLines(doc, from, to) {
+ var out = [];
+ doc.iter(from, to, function(line) { out.push(line.text); });
+ return out;
+ }
+
+ // Update the height of a line, propagating the height change
+ // upwards to parent nodes.
+ function updateLineHeight(line, height) {
+ var diff = height - line.height;
+ if (diff) for (var n = line; n; n = n.parent) n.height += diff;
+ }
+
+ // Given a line object, find its line number by walking up through
+ // its parent links.
+ function lineNo(line) {
+ if (line.parent == null) return null;
+ var cur = line.parent, no = indexOf(cur.lines, line);
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+ for (var i = 0;; ++i) {
+ if (chunk.children[i] == cur) break;
+ no += chunk.children[i].chunkSize();
+ }
+ }
+ return no + cur.first;
+ }
+
+ // Find the line at the given vertical position, using the height
+ // information in the document tree.
+ function lineAtHeight(chunk, h) {
+ var n = chunk.first;
+ outer: do {
+ for (var i = 0; i < chunk.children.length; ++i) {
+ var child = chunk.children[i], ch = child.height;
+ if (h < ch) { chunk = child; continue outer; }
+ h -= ch;
+ n += child.chunkSize();
+ }
+ return n;
+ } while (!chunk.lines);
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i], lh = line.height;
+ if (h < lh) break;
+ h -= lh;
+ }
+ return n + i;
+ }
+
+
+ // Find the height above the given line.
+ function heightAtLine(lineObj) {
+ lineObj = visualLine(lineObj);
+
+ var h = 0, chunk = lineObj.parent;
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i];
+ if (line == lineObj) break;
+ else h += line.height;
+ }
+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+ for (var i = 0; i < p.children.length; ++i) {
+ var cur = p.children[i];
+ if (cur == chunk) break;
+ else h += cur.height;
+ }
+ }
+ return h;
+ }
+
+ // Get the bidi ordering for the given line (and cache it). Returns
+ // false for lines that are fully left-to-right, and an array of
+ // BidiSpan objects otherwise.
+ function getOrder(line) {
+ var order = line.order;
+ if (order == null) order = line.order = bidiOrdering(line.text);
+ return order;
+ }
+
+ // HISTORY
+
+ function History(startGen) {
+ // Arrays of change events and selections. Doing something adds an
+ // event to done and clears undo. Undoing moves events from done
+ // to undone, redoing moves them in the other direction.
+ this.done = []; this.undone = [];
+ this.undoDepth = Infinity;
+ // Used to track when changes can be merged into a single undo
+ // event
+ this.lastModTime = this.lastSelTime = 0;
+ this.lastOp = this.lastSelOp = null;
+ this.lastOrigin = this.lastSelOrigin = null;
+ // Used by the isClean() method
+ this.generation = this.maxGeneration = startGen || 1;
+ }
+
+ // Create a history change event from an updateDoc-style change
+ // object.
+ function historyChangeFromChange(doc, change) {
+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+ linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
+ return histChange;
+ }
+
+ // Pop all selection events off the end of a history array. Stop at
+ // a change event.
+ function clearSelectionEvents(array) {
+ while (array.length) {
+ var last = lst(array);
+ if (last.ranges) array.pop();
+ else break;
+ }
+ }
+
+ // Find the top change event in the history. Pop off selection
+ // events that are in the way.
+ function lastChangeEvent(hist, force) {
+ if (force) {
+ clearSelectionEvents(hist.done);
+ return lst(hist.done);
+ } else if (hist.done.length && !lst(hist.done).ranges) {
+ return lst(hist.done);
+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+ hist.done.pop();
+ return lst(hist.done);
+ }
+ }
+
+ // Register a change in the history. Merges changes that are within
+ // a single operation, ore are close together with an origin that
+ // allows merging (starting with "+") into a single event.
+ function addChangeToHistory(doc, change, selAfter, opId) {
+ var hist = doc.history;
+ hist.undone.length = 0;
+ var time = +new Date, cur;
+
+ if ((hist.lastOp == opId ||
+ hist.lastOrigin == change.origin && change.origin &&
+ ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+ change.origin.charAt(0) == "*")) &&
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+ // Merge this change into the last event
+ var last = lst(cur.changes);
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+ // Optimized case for simple insertion -- don't want to add
+ // new changesets for every character typed
+ last.to = changeEnd(change);
+ } else {
+ // Add new sub-event
+ cur.changes.push(historyChangeFromChange(doc, change));
+ }
+ } else {
+ // Can not be merged, start a new event.
+ var before = lst(hist.done);
+ if (!before || !before.ranges)
+ pushSelectionToHistory(doc.sel, hist.done);
+ cur = {changes: [historyChangeFromChange(doc, change)],
+ generation: hist.generation};
+ hist.done.push(cur);
+ while (hist.done.length > hist.undoDepth) {
+ hist.done.shift();
+ if (!hist.done[0].ranges) hist.done.shift();
+ }
+ }
+ hist.done.push(selAfter);
+ hist.generation = ++hist.maxGeneration;
+ hist.lastModTime = hist.lastSelTime = time;
+ hist.lastOp = hist.lastSelOp = opId;
+ hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+ if (!last) signal(doc, "historyAdded");
+ }
+
+ function selectionEventCanBeMerged(doc, origin, prev, sel) {
+ var ch = origin.charAt(0);
+ return ch == "*" ||
+ ch == "+" &&
+ prev.ranges.length == sel.ranges.length &&
+ prev.somethingSelected() == sel.somethingSelected() &&
+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
+ }
+
+ // Called whenever the selection changes, sets the new selection as
+ // the pending selection in the history, and pushes the old pending
+ // selection into the 'done' array when it was significantly
+ // different (in number of selected ranges, emptiness, or time).
+ function addSelectionToHistory(doc, sel, opId, options) {
+ var hist = doc.history, origin = options && options.origin;
+
+ // A new event is started when the previous origin does not match
+ // the current, or the origins don't allow matching. Origins
+ // starting with * are always merged, those starting with + are
+ // merged when similar and close together in time.
+ if (opId == hist.lastSelOp ||
+ (origin && hist.lastSelOrigin == origin &&
+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+ hist.done[hist.done.length - 1] = sel;
+ else
+ pushSelectionToHistory(sel, hist.done);
+
+ hist.lastSelTime = +new Date;
+ hist.lastSelOrigin = origin;
+ hist.lastSelOp = opId;
+ if (options && options.clearRedo !== false)
+ clearSelectionEvents(hist.undone);
+ }
+
+ function pushSelectionToHistory(sel, dest) {
+ var top = lst(dest);
+ if (!(top && top.ranges && top.equals(sel)))
+ dest.push(sel);
+ }
+
+ // Used to store marked span information in the history.
+ function attachLocalSpans(doc, change, from, to) {
+ var existing = change["spans_" + doc.id], n = 0;
+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
+ if (line.markedSpans)
+ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
+ ++n;
+ });
+ }
+
+ // When un/re-doing restores text containing marked spans, those
+ // that have been explicitly cleared should not be restored.
+ function removeClearedSpans(spans) {
+ if (!spans) return null;
+ for (var i = 0, out; i < spans.length; ++i) {
+ if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
+ else if (out) out.push(spans[i]);
+ }
+ return !out ? spans : out.length ? out : null;
+ }
+
+ // Retrieve and filter the old marked spans stored in a change event.
+ function getOldSpans(doc, change) {
+ var found = change["spans_" + doc.id];
+ if (!found) return null;
+ for (var i = 0, nw = []; i < change.text.length; ++i)
+ nw.push(removeClearedSpans(found[i]));
+ return nw;
+ }
+
+ // Used both to provide a JSON-safe object in .getHistory, and, when
+ // detaching a document, to split the history in two
+ function copyHistoryArray(events, newGroup, instantiateSel) {
+ for (var i = 0, copy = []; i < events.length; ++i) {
+ var event = events[i];
+ if (event.ranges) {
+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
+ continue;
+ }
+ var changes = event.changes, newChanges = [];
+ copy.push({changes: newChanges});
+ for (var j = 0; j < changes.length; ++j) {
+ var change = changes[j], m;
+ newChanges.push({from: change.from, to: change.to, text: change.text});
+ if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
+ if (indexOf(newGroup, Number(m[1])) > -1) {
+ lst(newChanges)[prop] = change[prop];
+ delete change[prop];
+ }
+ }
+ }
+ }
+ return copy;
+ }
+
+ // Rebasing/resetting history to deal with externally-sourced changes
+
+ function rebaseHistSelSingle(pos, from, to, diff) {
+ if (to < pos.line) {
+ pos.line += diff;
+ } else if (from < pos.line) {
+ pos.line = from;
+ pos.ch = 0;
+ }
+ }
+
+ // Tries to rebase an array of history events given a change in the
+ // document. If the change touches the same lines as the event, the
+ // event, and everything 'behind' it, is discarded. If the change is
+ // before the event, the event's positions are updated. Uses a
+ // copy-on-write scheme for the positions, to avoid having to
+ // reallocate them all on every rebase, but also avoid problems with
+ // shared position objects being unsafely updated.
+ function rebaseHistArray(array, from, to, diff) {
+ for (var i = 0; i < array.length; ++i) {
+ var sub = array[i], ok = true;
+ if (sub.ranges) {
+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
+ for (var j = 0; j < sub.ranges.length; j++) {
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+ }
+ continue;
+ }
+ for (var j = 0; j < sub.changes.length; ++j) {
+ var cur = sub.changes[j];
+ if (to < cur.from.line) {
+ cur.from = Pos(cur.from.line + diff, cur.from.ch);
+ cur.to = Pos(cur.to.line + diff, cur.to.ch);
+ } else if (from <= cur.to.line) {
+ ok = false;
+ break;
+ }
+ }
+ if (!ok) {
+ array.splice(0, i + 1);
+ i = 0;
+ }
+ }
+ }
+
+ function rebaseHist(hist, change) {
+ var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
+ rebaseHistArray(hist.done, from, to, diff);
+ rebaseHistArray(hist.undone, from, to, diff);
+ }
+
+ // EVENT UTILITIES
+
+ // Due to the fact that we still support jurassic IE versions, some
+ // compatibility wrappers are needed.
+
+ var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
+ if (e.preventDefault) e.preventDefault();
+ else e.returnValue = false;
+ };
+ var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
+ if (e.stopPropagation) e.stopPropagation();
+ else e.cancelBubble = true;
+ };
+ function e_defaultPrevented(e) {
+ return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
+ }
+ var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
+
+ function e_target(e) {return e.target || e.srcElement;}
+ function e_button(e) {
+ var b = e.which;
+ if (b == null) {
+ if (e.button & 1) b = 1;
+ else if (e.button & 2) b = 3;
+ else if (e.button & 4) b = 2;
+ }
+ if (mac && e.ctrlKey && b == 1) b = 3;
+ return b;
+ }
+
+ // EVENT HANDLING
+
+ // Lightweight event framework. on/off also work on DOM nodes,
+ // registering native DOM handlers.
+
+ var on = CodeMirror.on = function(emitter, type, f) {
+ if (emitter.addEventListener)
+ emitter.addEventListener(type, f, false);
+ else if (emitter.attachEvent)
+ emitter.attachEvent("on" + type, f);
+ else {
+ var map = emitter._handlers || (emitter._handlers = {});
+ var arr = map[type] || (map[type] = []);
+ arr.push(f);
+ }
+ };
+
+ var noHandlers = []
+ function getHandlers(emitter, type, copy) {
+ var arr = emitter._handlers && emitter._handlers[type]
+ if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers
+ else return arr || noHandlers
+ }
+
+ var off = CodeMirror.off = function(emitter, type, f) {
+ if (emitter.removeEventListener)
+ emitter.removeEventListener(type, f, false);
+ else if (emitter.detachEvent)
+ emitter.detachEvent("on" + type, f);
+ else {
+ var handlers = getHandlers(emitter, type, false)
+ for (var i = 0; i < handlers.length; ++i)
+ if (handlers[i] == f) { handlers.splice(i, 1); break; }
+ }
+ };
+
+ var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
+ var handlers = getHandlers(emitter, type, true)
+ if (!handlers.length) return;
+ var args = Array.prototype.slice.call(arguments, 2);
+ for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args);
+ };
+
+ var orphanDelayedCallbacks = null;
+
+ // Often, we want to signal events at a point where we are in the
+ // middle of some work, but don't want the handler to start calling
+ // other methods on the editor, which might be in an inconsistent
+ // state or simply not expect any other events to happen.
+ // signalLater looks whether there are any handlers, and schedules
+ // them to be executed when the last operation ends, or, if no
+ // operation is active, when a timeout fires.
+ function signalLater(emitter, type /*, values...*/) {
+ var arr = getHandlers(emitter, type, false)
+ if (!arr.length) return;
+ var args = Array.prototype.slice.call(arguments, 2), list;
+ if (operationGroup) {
+ list = operationGroup.delayedCallbacks;
+ } else if (orphanDelayedCallbacks) {
+ list = orphanDelayedCallbacks;
+ } else {
+ list = orphanDelayedCallbacks = [];
+ setTimeout(fireOrphanDelayed, 0);
+ }
+ function bnd(f) {return function(){f.apply(null, args);};};
+ for (var i = 0; i < arr.length; ++i)
+ list.push(bnd(arr[i]));
+ }
+
+ function fireOrphanDelayed() {
+ var delayed = orphanDelayedCallbacks;
+ orphanDelayedCallbacks = null;
+ for (var i = 0; i < delayed.length; ++i) delayed[i]();
+ }
+
+ // The DOM events that CodeMirror handles can be overridden by
+ // registering a (non-DOM) handler on the editor for the event name,
+ // and preventDefault-ing the event in that handler.
+ function signalDOMEvent(cm, e, override) {
+ if (typeof e == "string")
+ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
+ signal(cm, override || e.type, cm, e);
+ return e_defaultPrevented(e) || e.codemirrorIgnore;
+ }
+
+ function signalCursorActivity(cm) {
+ var arr = cm._handlers && cm._handlers.cursorActivity;
+ if (!arr) return;
+ var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+ for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
+ set.push(arr[i]);
+ }
+
+ function hasHandler(emitter, type) {
+ return getHandlers(emitter, type).length > 0
+ }
+
+ // Add on and off methods to a constructor's prototype, to make
+ // registering events on such objects more convenient.
+ function eventMixin(ctor) {
+ ctor.prototype.on = function(type, f) {on(this, type, f);};
+ ctor.prototype.off = function(type, f) {off(this, type, f);};
+ }
+
+ // MISC UTILITIES
+
+ // Number of pixels added to scroller and sizer to hide scrollbar
+ var scrollerGap = 30;
+
+ // Returned or thrown by various protocols to signal 'I'm not
+ // handling this'.
+ var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
+
+ // Reused option objects for setSelection & friends
+ var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
+
+ function Delayed() {this.id = null;}
+ Delayed.prototype.set = function(ms, f) {
+ clearTimeout(this.id);
+ this.id = setTimeout(f, ms);
+ };
+
+ // Counts the column offset in a string, taking tabs into account.
+ // Used mostly to find indentation.
+ var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
+ if (end == null) {
+ end = string.search(/[^\s\u00a0]/);
+ if (end == -1) end = string.length;
+ }
+ for (var i = startIndex || 0, n = startValue || 0;;) {
+ var nextTab = string.indexOf("\t", i);
+ if (nextTab < 0 || nextTab >= end)
+ return n + (end - i);
+ n += nextTab - i;
+ n += tabSize - (n % tabSize);
+ i = nextTab + 1;
+ }
+ };
+
+ // The inverse of countColumn -- find the offset that corresponds to
+ // a particular column.
+ var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) {
+ for (var pos = 0, col = 0;;) {
+ var nextTab = string.indexOf("\t", pos);
+ if (nextTab == -1) nextTab = string.length;
+ var skipped = nextTab - pos;
+ if (nextTab == string.length || col + skipped >= goal)
+ return pos + Math.min(skipped, goal - col);
+ col += nextTab - pos;
+ col += tabSize - (col % tabSize);
+ pos = nextTab + 1;
+ if (col >= goal) return pos;
+ }
+ }
+
+ var spaceStrs = [""];
+ function spaceStr(n) {
+ while (spaceStrs.length <= n)
+ spaceStrs.push(lst(spaceStrs) + " ");
+ return spaceStrs[n];
+ }
+
+ function lst(arr) { return arr[arr.length-1]; }
+
+ var selectInput = function(node) { node.select(); };
+ if (ios) // Mobile Safari apparently has a bug where select() is broken.
+ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
+ else if (ie) // Suppress mysterious IE10 errors
+ selectInput = function(node) { try { node.select(); } catch(_e) {} };
+
+ function indexOf(array, elt) {
+ for (var i = 0; i < array.length; ++i)
+ if (array[i] == elt) return i;
+ return -1;
+ }
+ function map(array, f) {
+ var out = [];
+ for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
+ return out;
+ }
+
+ function nothing() {}
+
+ function createObj(base, props) {
+ var inst;
+ if (Object.create) {
+ inst = Object.create(base);
+ } else {
+ nothing.prototype = base;
+ inst = new nothing();
+ }
+ if (props) copyObj(props, inst);
+ return inst;
+ };
+
+ function copyObj(obj, target, overwrite) {
+ if (!target) target = {};
+ for (var prop in obj)
+ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+ target[prop] = obj[prop];
+ return target;
+ }
+
+ function bind(f) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ return function(){return f.apply(null, args);};
+ }
+
+ var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+ var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
+ return /\w/.test(ch) || ch > "\x80" &&
+ (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
+ };
+ function isWordChar(ch, helper) {
+ if (!helper) return isWordCharBasic(ch);
+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
+ return helper.test(ch);
+ }
+
+ function isEmpty(obj) {
+ for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
+ return true;
+ }
+
+ // Extending unicode characters. A series of a non-extending char +
+ // any number of extending chars is treated as a single unit as far
+ // as editing and measuring is concerned. This is not fully correct,
+ // since some scripts/fonts/browsers also treat other configurations
+ // of code points as a group.
+ var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+ function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
+
+ // DOM UTILITIES
+
+ function elt(tag, content, className, style) {
+ var e = document.createElement(tag);
+ if (className) e.className = className;
+ if (style) e.style.cssText = style;
+ if (typeof content == "string") e.appendChild(document.createTextNode(content));
+ else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
+ return e;
+ }
+
+ var range;
+ if (document.createRange) range = function(node, start, end, endNode) {
+ var r = document.createRange();
+ r.setEnd(endNode || node, end);
+ r.setStart(node, start);
+ return r;
+ };
+ else range = function(node, start, end) {
+ var r = document.body.createTextRange();
+ try { r.moveToElementText(node.parentNode); }
+ catch(e) { return r; }
+ r.collapse(true);
+ r.moveEnd("character", end);
+ r.moveStart("character", start);
+ return r;
+ };
+
+ function removeChildren(e) {
+ for (var count = e.childNodes.length; count > 0; --count)
+ e.removeChild(e.firstChild);
+ return e;
+ }
+
+ function removeChildrenAndAdd(parent, e) {
+ return removeChildren(parent).appendChild(e);
+ }
+
+ var contains = CodeMirror.contains = function(parent, child) {
+ if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+ child = child.parentNode;
+ if (parent.contains)
+ return parent.contains(child);
+ do {
+ if (child.nodeType == 11) child = child.host;
+ if (child == parent) return true;
+ } while (child = child.parentNode);
+ };
+
+ function activeElt() {
+ var activeElement = document.activeElement;
+ while (activeElement && activeElement.root && activeElement.root.activeElement)
+ activeElement = activeElement.root.activeElement;
+ return activeElement;
+ }
+ // Older versions of IE throws unspecified error when touching
+ // document.activeElement in some cases (during loading, in iframe)
+ if (ie && ie_version < 11) activeElt = function() {
+ try { return document.activeElement; }
+ catch(e) { return document.body; }
+ };
+
+ function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
+ var rmClass = CodeMirror.rmClass = function(node, cls) {
+ var current = node.className;
+ var match = classTest(cls).exec(current);
+ if (match) {
+ var after = current.slice(match.index + match[0].length);
+ node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
+ }
+ };
+ var addClass = CodeMirror.addClass = function(node, cls) {
+ var current = node.className;
+ if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
+ };
+ function joinClasses(a, b) {
+ var as = a.split(" ");
+ for (var i = 0; i < as.length; i++)
+ if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
+ return b;
+ }
+
+ // WINDOW-WIDE EVENTS
+
+ // These must be handled carefully, because naively registering a
+ // handler for each editor will cause the editors to never be
+ // garbage collected.
+
+ function forEachCodeMirror(f) {
+ if (!document.body.getElementsByClassName) return;
+ var byClass = document.body.getElementsByClassName("CodeMirror");
+ for (var i = 0; i < byClass.length; i++) {
+ var cm = byClass[i].CodeMirror;
+ if (cm) f(cm);
+ }
+ }
+
+ var globalsRegistered = false;
+ function ensureGlobalHandlers() {
+ if (globalsRegistered) return;
+ registerGlobalHandlers();
+ globalsRegistered = true;
+ }
+ function registerGlobalHandlers() {
+ // When the window resizes, we need to refresh active editors.
+ var resizeTimer;
+ on(window, "resize", function() {
+ if (resizeTimer == null) resizeTimer = setTimeout(function() {
+ resizeTimer = null;
+ forEachCodeMirror(onResize);
+ }, 100);
+ });
+ // When the window loses focus, we want to show the editor as blurred
+ on(window, "blur", function() {
+ forEachCodeMirror(onBlur);
+ });
+ }
+
+ // FEATURE DETECTION
+
+ // Detect drag-and-drop
+ var dragAndDrop = function() {
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
+ // couldn't get it to work yet.
+ if (ie && ie_version < 9) return false;
+ var div = elt('div');
+ return "draggable" in div || "dragDrop" in div;
+ }();
+
+ var zwspSupported;
+ function zeroWidthElement(measure) {
+ if (zwspSupported == null) {
+ var test = elt("span", "\u200b");
+ removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
+ if (measure.firstChild.offsetHeight != 0)
+ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
+ }
+ var node = zwspSupported ? elt("span", "\u200b") :
+ elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
+ node.setAttribute("cm-text", "");
+ return node;
+ }
+
+ // Feature-detect IE's crummy client rect reporting for bidi text
+ var badBidiRects;
+ function hasBadBidiRects(measure) {
+ if (badBidiRects != null) return badBidiRects;
+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
+ var r0 = range(txt, 0, 1).getBoundingClientRect();
+ if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
+ var r1 = range(txt, 1, 2).getBoundingClientRect();
+ return badBidiRects = (r1.right - r0.right < 3);
+ }
+
+ // See if "".split is the broken IE version, if so, provide an
+ // alternative way to split lines.
+ var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
+ var pos = 0, result = [], l = string.length;
+ while (pos <= l) {
+ var nl = string.indexOf("\n", pos);
+ if (nl == -1) nl = string.length;
+ var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
+ var rt = line.indexOf("\r");
+ if (rt != -1) {
+ result.push(line.slice(0, rt));
+ pos += rt + 1;
+ } else {
+ result.push(line);
+ pos = nl + 1;
+ }
+ }
+ return result;
+ } : function(string){return string.split(/\r\n?|\n/);};
+
+ var hasSelection = window.getSelection ? function(te) {
+ try { return te.selectionStart != te.selectionEnd; }
+ catch(e) { return false; }
+ } : function(te) {
+ try {var range = te.ownerDocument.selection.createRange();}
+ catch(e) {}
+ if (!range || range.parentElement() != te) return false;
+ return range.compareEndPoints("StartToEnd", range) != 0;
+ };
+
+ var hasCopyEvent = (function() {
+ var e = elt("div");
+ if ("oncopy" in e) return true;
+ e.setAttribute("oncopy", "return;");
+ return typeof e.oncopy == "function";
+ })();
+
+ var badZoomedRects = null;
+ function hasBadZoomedRects(measure) {
+ if (badZoomedRects != null) return badZoomedRects;
+ var node = removeChildrenAndAdd(measure, elt("span", "x"));
+ var normal = node.getBoundingClientRect();
+ var fromRange = range(node, 0, 1).getBoundingClientRect();
+ return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
+ }
+
+ // KEY NAMES
+
+ var keyNames = CodeMirror.keyNames = {
+ 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+ 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+ 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+ 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+ 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+ 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+ };
+ (function() {
+ // Number keys
+ for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
+ // Alphabetic keys
+ for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+ // Function keys
+ for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+ })();
+
+ // BIDI HELPERS
+
+ function iterateBidiSections(order, from, to, f) {
+ if (!order) return f(from, to, "ltr");
+ var found = false;
+ for (var i = 0; i < order.length; ++i) {
+ var part = order[i];
+ if (part.from < to && part.to > from || from == to && part.to == from) {
+ f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
+ found = true;
+ }
+ }
+ if (!found) f(from, to, "ltr");
+ }
+
+ function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
+ function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
+
+ function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
+ function lineRight(line) {
+ var order = getOrder(line);
+ if (!order) return line.text.length;
+ return bidiRight(lst(order));
+ }
+
+ function lineStart(cm, lineN) {
+ var line = getLine(cm.doc, lineN);
+ var visual = visualLine(line);
+ if (visual != line) lineN = lineNo(visual);
+ var order = getOrder(visual);
+ var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
+ return Pos(lineN, ch);
+ }
+ function lineEnd(cm, lineN) {
+ var merged, line = getLine(cm.doc, lineN);
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line;
+ lineN = null;
+ }
+ var order = getOrder(line);
+ var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
+ return Pos(lineN == null ? lineNo(line) : lineN, ch);
+ }
+ function lineStartSmart(cm, pos) {
+ var start = lineStart(cm, pos.line);
+ var line = getLine(cm.doc, start.line);
+ var order = getOrder(line);
+ if (!order || order[0].level == 0) {
+ var firstNonWS = Math.max(0, line.text.search(/\S/));
+ var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+ return Pos(start.line, inWS ? 0 : firstNonWS);
+ }
+ return start;
+ }
+
+ function compareBidiLevel(order, a, b) {
+ var linedir = order[0].level;
+ if (a == linedir) return true;
+ if (b == linedir) return false;
+ return a < b;
+ }
+ var bidiOther;
+ function getBidiPartAt(order, pos) {
+ bidiOther = null;
+ for (var i = 0, found; i < order.length; ++i) {
+ var cur = order[i];
+ if (cur.from < pos && cur.to > pos) return i;
+ if ((cur.from == pos || cur.to == pos)) {
+ if (found == null) {
+ found = i;
+ } else if (compareBidiLevel(order, cur.level, order[found].level)) {
+ if (cur.from != cur.to) bidiOther = found;
+ return i;
+ } else {
+ if (cur.from != cur.to) bidiOther = i;
+ return found;
+ }
+ }
+ }
+ return found;
+ }
+
+ function moveInLine(line, pos, dir, byUnit) {
+ if (!byUnit) return pos + dir;
+ do pos += dir;
+ while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
+ return pos;
+ }
+
+ // This is needed in order to move 'visually' through bi-directional
+ // text -- i.e., pressing left should make the cursor go left, even
+ // when in RTL text. The tricky part is the 'jumps', where RTL and
+ // LTR text touch each other. This often requires the cursor offset
+ // to move more than one unit, in order to visually move one unit.
+ function moveVisually(line, start, dir, byUnit) {
+ var bidi = getOrder(line);
+ if (!bidi) return moveLogically(line, start, dir, byUnit);
+ var pos = getBidiPartAt(bidi, start), part = bidi[pos];
+ var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
+
+ for (;;) {
+ if (target > part.from && target < part.to) return target;
+ if (target == part.from || target == part.to) {
+ if (getBidiPartAt(bidi, target) == pos) return target;
+ part = bidi[pos += dir];
+ return (dir > 0) == part.level % 2 ? part.to : part.from;
+ } else {
+ part = bidi[pos += dir];
+ if (!part) return null;
+ if ((dir > 0) == part.level % 2)
+ target = moveInLine(line, part.to, -1, byUnit);
+ else
+ target = moveInLine(line, part.from, 1, byUnit);
+ }
+ }
+ }
+
+ function moveLogically(line, start, dir, byUnit) {
+ var target = start + dir;
+ if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
+ return target < 0 || target > line.text.length ? null : target;
+ }
+
+ // Bidirectional ordering algorithm
+ // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+ // that this (partially) implements.
+
+ // One-char codes used for character types:
+ // L (L): Left-to-Right
+ // R (R): Right-to-Left
+ // r (AL): Right-to-Left Arabic
+ // 1 (EN): European Number
+ // + (ES): European Number Separator
+ // % (ET): European Number Terminator
+ // n (AN): Arabic Number
+ // , (CS): Common Number Separator
+ // m (NSM): Non-Spacing Mark
+ // b (BN): Boundary Neutral
+ // s (B): Paragraph Separator
+ // t (S): Segment Separator
+ // w (WS): Whitespace
+ // N (ON): Other Neutrals
+
+ // Returns null if characters are ordered as they appear
+ // (left-to-right), or an array of sections ({from, to, level}
+ // objects) in the order in which they occur visually.
+ var bidiOrdering = (function() {
+ // Character types for codepoints 0 to 0xff
+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+ // Character types for codepoints 0x600 to 0x6ff
+ var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
+ function charType(code) {
+ if (code <= 0xf7) return lowTypes.charAt(code);
+ else if (0x590 <= code && code <= 0x5f4) return "R";
+ else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
+ else if (0x6ee <= code && code <= 0x8ac) return "r";
+ else if (0x2000 <= code && code <= 0x200b) return "w";
+ else if (code == 0x200c) return "b";
+ else return "L";
+ }
+
+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+ var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
+ // Browsers seem to always treat the boundaries of block elements as being L.
+ var outerType = "L";
+
+ function BidiSpan(level, from, to) {
+ this.level = level;
+ this.from = from; this.to = to;
+ }
+
+ return function(str) {
+ if (!bidiRE.test(str)) return false;
+ var len = str.length, types = [];
+ for (var i = 0, type; i < len; ++i)
+ types.push(type = charType(str.charCodeAt(i)));
+
+ // W1. Examine each non-spacing mark (NSM) in the level run, and
+ // change the type of the NSM to the type of the previous
+ // character. If the NSM is at the start of the level run, it will
+ // get the type of sor.
+ for (var i = 0, prev = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "m") types[i] = prev;
+ else prev = type;
+ }
+
+ // W2. Search backwards from each instance of a European number
+ // until the first strong type (R, L, AL, or sor) is found. If an
+ // AL is found, change the type of the European number to Arabic
+ // number.
+ // W3. Change all ALs to R.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "1" && cur == "r") types[i] = "n";
+ else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
+ }
+
+ // W4. A single European separator between two European numbers
+ // changes to a European number. A single common separator between
+ // two numbers of the same type changes to that type.
+ for (var i = 1, prev = types[0]; i < len - 1; ++i) {
+ var type = types[i];
+ if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
+ else if (type == "," && prev == types[i+1] &&
+ (prev == "1" || prev == "n")) types[i] = prev;
+ prev = type;
+ }
+
+ // W5. A sequence of European terminators adjacent to European
+ // numbers changes to all European numbers.
+ // W6. Otherwise, separators and terminators change to Other
+ // Neutral.
+ for (var i = 0; i < len; ++i) {
+ var type = types[i];
+ if (type == ",") types[i] = "N";
+ else if (type == "%") {
+ for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
+ var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // W7. Search backwards from each instance of a European number
+ // until the first strong type (R, L, or sor) is found. If an L is
+ // found, then change the type of the European number to L.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (cur == "L" && type == "1") types[i] = "L";
+ else if (isStrong.test(type)) cur = type;
+ }
+
+ // N1. A sequence of neutrals takes the direction of the
+ // surrounding strong text if the text on both sides has the same
+ // direction. European and Arabic numbers act as if they were R in
+ // terms of their influence on neutrals. Start-of-level-run (sor)
+ // and end-of-level-run (eor) are used at level run boundaries.
+ // N2. Any remaining neutrals take the embedding direction.
+ for (var i = 0; i < len; ++i) {
+ if (isNeutral.test(types[i])) {
+ for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
+ var before = (i ? types[i-1] : outerType) == "L";
+ var after = (end < len ? types[end] : outerType) == "L";
+ var replace = before || after ? "L" : "R";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // Here we depart from the documented algorithm, in order to avoid
+ // building up an actual levels array. Since there are only three
+ // levels (0, 1, 2) in an implementation that doesn't take
+ // explicit embedding into account, we can build up the order on
+ // the fly, without following the level-based algorithm.
+ var order = [], m;
+ for (var i = 0; i < len;) {
+ if (countsAsLeft.test(types[i])) {
+ var start = i;
+ for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
+ order.push(new BidiSpan(0, start, i));
+ } else {
+ var pos = i, at = order.length;
+ for (++i; i < len && types[i] != "L"; ++i) {}
+ for (var j = pos; j < i;) {
+ if (countsAsNum.test(types[j])) {
+ if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
+ var nstart = j;
+ for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
+ order.splice(at, 0, new BidiSpan(2, nstart, j));
+ pos = j;
+ } else ++j;
+ }
+ if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
+ }
+ }
+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+ order[0].from = m[0].length;
+ order.unshift(new BidiSpan(0, 0, m[0].length));
+ }
+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+ lst(order).to -= m[0].length;
+ order.push(new BidiSpan(0, len - m[0].length, len));
+ }
+ if (order[0].level == 2)
+ order.unshift(new BidiSpan(1, order[0].to, order[0].to));
+ if (order[0].level != lst(order).level)
+ order.push(new BidiSpan(order[0].level, len, len));
+
+ return order;
+ };
+ })();
+
+ // THE END
+
+ CodeMirror.version = "5.7.1";
+
+ return CodeMirror;
+});
+
+},{}],7:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../markdown/markdown"), require("../../addon/mode/overlay"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../markdown/markdown", "../../addon/mode/overlay"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i
+
+CodeMirror.defineMode("gfm", function(config, modeConfig) {
+ var codeDepth = 0;
+ function blankLine(state) {
+ state.code = false;
+ return null;
+ }
+ var gfmOverlay = {
+ startState: function() {
+ return {
+ code: false,
+ codeBlock: false,
+ ateSpace: false
+ };
+ },
+ copyState: function(s) {
+ return {
+ code: s.code,
+ codeBlock: s.codeBlock,
+ ateSpace: s.ateSpace
+ };
+ },
+ token: function(stream, state) {
+ state.combineTokens = null;
+
+ // Hack to prevent formatting override inside code blocks (block and inline)
+ if (state.codeBlock) {
+ if (stream.match(/^```+/)) {
+ state.codeBlock = false;
+ return null;
+ }
+ stream.skipToEnd();
+ return null;
+ }
+ if (stream.sol()) {
+ state.code = false;
+ }
+ if (stream.sol() && stream.match(/^```+/)) {
+ stream.skipToEnd();
+ state.codeBlock = true;
+ return null;
+ }
+ // If this block is changed, it may need to be updated in Markdown mode
+ if (stream.peek() === '`') {
+ stream.next();
+ var before = stream.pos;
+ stream.eatWhile('`');
+ var difference = 1 + stream.pos - before;
+ if (!state.code) {
+ codeDepth = difference;
+ state.code = true;
+ } else {
+ if (difference === codeDepth) { // Must be exact
+ state.code = false;
+ }
+ }
+ return null;
+ } else if (state.code) {
+ stream.next();
+ return null;
+ }
+ // Check if space. If so, links can be formatted later on
+ if (stream.eatSpace()) {
+ state.ateSpace = true;
+ return null;
+ }
+ if (stream.sol() || state.ateSpace) {
+ state.ateSpace = false;
+ if (modeConfig.gitHubSpice !== false) {
+ if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?:[a-f0-9]{7,40}\b)/)) {
+ // User/Project@SHA
+ // User@SHA
+ // SHA
+ state.combineTokens = true;
+ return "link";
+ } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
+ // User/Project#Num
+ // User#Num
+ // #Num
+ state.combineTokens = true;
+ return "link";
+ }
+ }
+ }
+ if (stream.match(urlRE) &&
+ stream.string.slice(stream.start - 2, stream.start) != "](" &&
+ (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
+ // URLs
+ // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
+ // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
+ // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
+ state.combineTokens = true;
+ return "link";
+ }
+ stream.next();
+ return null;
+ },
+ blankLine: blankLine
+ };
+
+ var markdownConfig = {
+ underscoresBreakWords: false,
+ taskLists: true,
+ fencedCodeBlocks: '```',
+ strikethrough: true
+ };
+ for (var attr in modeConfig) {
+ markdownConfig[attr] = modeConfig[attr];
+ }
+ markdownConfig.name = "markdown";
+ return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);
+
+}, "markdown");
+
+ CodeMirror.defineMIME("text/x-gfm", "gfm");
+});
+
+},{"../../addon/mode/overlay":5,"../../lib/codemirror":6,"../markdown/markdown":8}],8:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../xml/xml"), require("../meta"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../xml/xml", "../meta"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
+
+ var htmlFound = CodeMirror.modes.hasOwnProperty("xml");
+ var htmlMode = CodeMirror.getMode(cmCfg, htmlFound ? {name: "xml", htmlMode: true} : "text/plain");
+
+ function getMode(name) {
+ if (CodeMirror.findModeByName) {
+ var found = CodeMirror.findModeByName(name);
+ if (found) name = found.mime || found.mimes[0];
+ }
+ var mode = CodeMirror.getMode(cmCfg, name);
+ return mode.name == "null" ? null : mode;
+ }
+
+ // Should characters that affect highlighting be highlighted separate?
+ // Does not include characters that will be output (such as `1.` and `-` for lists)
+ if (modeCfg.highlightFormatting === undefined)
+ modeCfg.highlightFormatting = false;
+
+ // Maximum number of nested blockquotes. Set to 0 for infinite nesting.
+ // Excess `>` will emit `error` token.
+ if (modeCfg.maxBlockquoteDepth === undefined)
+ modeCfg.maxBlockquoteDepth = 0;
+
+ // Should underscores in words open/close em/strong?
+ if (modeCfg.underscoresBreakWords === undefined)
+ modeCfg.underscoresBreakWords = true;
+
+ // Use `fencedCodeBlocks` to configure fenced code blocks. false to
+ // disable, string to specify a precise regexp that the fence should
+ // match, and true to allow three or more backticks or tildes (as
+ // per CommonMark).
+
+ // Turn on task lists? ("- [ ] " and "- [x] ")
+ if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
+
+ // Turn on strikethrough syntax
+ if (modeCfg.strikethrough === undefined)
+ modeCfg.strikethrough = false;
+
+ var codeDepth = 0;
+
+ var header = 'header'
+ , code = 'comment'
+ , quote = 'quote'
+ , list1 = 'variable-2'
+ , list2 = 'variable-3'
+ , list3 = 'keyword'
+ , hr = 'hr'
+ , image = 'tag'
+ , formatting = 'formatting'
+ , linkinline = 'link'
+ , linkemail = 'link'
+ , linktext = 'link'
+ , linkhref = 'string'
+ , em = 'em'
+ , strong = 'strong'
+ , strikethrough = 'strikethrough';
+
+ var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
+ , ulRE = /^[*\-+]\s+/
+ , olRE = /^[0-9]+([.)])\s+/
+ , taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE
+ , atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
+ , setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/
+ , textRE = /^[^#!\[\]*_\\<>` "'(~]+/
+ , fencedCodeRE = new RegExp("^(" + (modeCfg.fencedCodeBlocks === true ? "~~~+|```+" : modeCfg.fencedCodeBlocks) +
+ ")[ \\t]*([\\w+#]*)");
+
+ function switchInline(stream, state, f) {
+ state.f = state.inline = f;
+ return f(stream, state);
+ }
+
+ function switchBlock(stream, state, f) {
+ state.f = state.block = f;
+ return f(stream, state);
+ }
+
+ function lineIsEmpty(line) {
+ return !line || !/\S/.test(line.string)
+ }
+
+ // Blocks
+
+ function blankLine(state) {
+ // Reset linkTitle state
+ state.linkTitle = false;
+ // Reset EM state
+ state.em = false;
+ // Reset STRONG state
+ state.strong = false;
+ // Reset strikethrough state
+ state.strikethrough = false;
+ // Reset state.quote
+ state.quote = 0;
+ // Reset state.indentedCode
+ state.indentedCode = false;
+ if (!htmlFound && state.f == htmlBlock) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ }
+ // Reset state.trailingSpace
+ state.trailingSpace = 0;
+ state.trailingSpaceNewLine = false;
+ // Mark this line as blank
+ state.prevLine = state.thisLine
+ state.thisLine = null
+ return null;
+ }
+
+ function blockNormal(stream, state) {
+
+ var sol = stream.sol();
+
+ var prevLineIsList = state.list !== false,
+ prevLineIsIndentedCode = state.indentedCode;
+
+ state.indentedCode = false;
+
+ if (prevLineIsList) {
+ if (state.indentationDiff >= 0) { // Continued list
+ if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block
+ state.indentation -= state.indentationDiff;
+ }
+ state.list = null;
+ } else if (state.indentation > 0) {
+ state.list = null;
+ state.listDepth = Math.floor(state.indentation / 4);
+ } else { // No longer a list
+ state.list = false;
+ state.listDepth = 0;
+ }
+ }
+
+ var match = null;
+ if (state.indentationDiff >= 4) {
+ stream.skipToEnd();
+ if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {
+ state.indentation -= 4;
+ state.indentedCode = true;
+ return code;
+ } else {
+ return null;
+ }
+ } else if (stream.eatSpace()) {
+ return null;
+ } else if ((match = stream.match(atxHeaderRE)) && match[1].length <= 6) {
+ state.header = match[1].length;
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ state.f = state.inline;
+ return getType(state);
+ } else if (!lineIsEmpty(state.prevLine) && !state.quote && !prevLineIsList &&
+ !prevLineIsIndentedCode && (match = stream.match(setextHeaderRE))) {
+ state.header = match[0].charAt(0) == '=' ? 1 : 2;
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ state.f = state.inline;
+ return getType(state);
+ } else if (stream.eat('>')) {
+ state.quote = sol ? 1 : state.quote + 1;
+ if (modeCfg.highlightFormatting) state.formatting = "quote";
+ stream.eatSpace();
+ return getType(state);
+ } else if (stream.peek() === '[') {
+ return switchInline(stream, state, footnoteLink);
+ } else if (stream.match(hrRE, true)) {
+ state.hr = true;
+ return hr;
+ } else if ((lineIsEmpty(state.prevLine) || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) {
+ var listType = null;
+ if (stream.match(ulRE, true)) {
+ listType = 'ul';
+ } else {
+ stream.match(olRE, true);
+ listType = 'ol';
+ }
+ state.indentation = stream.column() + stream.current().length;
+ state.list = true;
+ state.listDepth++;
+ if (modeCfg.taskLists && stream.match(taskListRE, false)) {
+ state.taskList = true;
+ }
+ state.f = state.inline;
+ if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
+ return getType(state);
+ } else if (modeCfg.fencedCodeBlocks && (match = stream.match(fencedCodeRE, true))) {
+ state.fencedChars = match[1]
+ // try switching mode
+ state.localMode = getMode(match[2]);
+ if (state.localMode) state.localState = state.localMode.startState();
+ state.f = state.block = local;
+ if (modeCfg.highlightFormatting) state.formatting = "code-block";
+ state.code = true;
+ return getType(state);
+ }
+
+ return switchInline(stream, state, state.inline);
+ }
+
+ function htmlBlock(stream, state) {
+ var style = htmlMode.token(stream, state.htmlState);
+ if ((htmlFound && state.htmlState.tagStart === null &&
+ (!state.htmlState.context && state.htmlState.tokenize.isInText)) ||
+ (state.md_inside && stream.current().indexOf(">") > -1)) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ state.htmlState = null;
+ }
+ return style;
+ }
+
+ function local(stream, state) {
+ if (stream.sol() && state.fencedChars && stream.match(state.fencedChars, false)) {
+ state.localMode = state.localState = null;
+ state.f = state.block = leavingLocal;
+ return null;
+ } else if (state.localMode) {
+ return state.localMode.token(stream, state.localState);
+ } else {
+ stream.skipToEnd();
+ return code;
+ }
+ }
+
+ function leavingLocal(stream, state) {
+ stream.match(state.fencedChars);
+ state.block = blockNormal;
+ state.f = inlineNormal;
+ state.fencedChars = null;
+ if (modeCfg.highlightFormatting) state.formatting = "code-block";
+ state.code = true;
+ var returnType = getType(state);
+ state.code = false;
+ return returnType;
+ }
+
+ // Inline
+ function getType(state) {
+ var styles = [];
+
+ if (state.formatting) {
+ styles.push(formatting);
+
+ if (typeof state.formatting === "string") state.formatting = [state.formatting];
+
+ for (var i = 0; i < state.formatting.length; i++) {
+ styles.push(formatting + "-" + state.formatting[i]);
+
+ if (state.formatting[i] === "header") {
+ styles.push(formatting + "-" + state.formatting[i] + "-" + state.header);
+ }
+
+ // Add `formatting-quote` and `formatting-quote-#` for blockquotes
+ // Add `error` instead if the maximum blockquote nesting depth is passed
+ if (state.formatting[i] === "quote") {
+ if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+ styles.push(formatting + "-" + state.formatting[i] + "-" + state.quote);
+ } else {
+ styles.push("error");
+ }
+ }
+ }
+ }
+
+ if (state.taskOpen) {
+ styles.push("meta");
+ return styles.length ? styles.join(' ') : null;
+ }
+ if (state.taskClosed) {
+ styles.push("property");
+ return styles.length ? styles.join(' ') : null;
+ }
+
+ if (state.linkHref) {
+ styles.push(linkhref, "url");
+ } else { // Only apply inline styles to non-url text
+ if (state.strong) { styles.push(strong); }
+ if (state.em) { styles.push(em); }
+ if (state.strikethrough) { styles.push(strikethrough); }
+
+ if (state.linkText) { styles.push(linktext); }
+
+ if (state.code) { styles.push(code); }
+ }
+
+ if (state.header) { styles.push(header); styles.push(header + "-" + state.header); }
+
+ if (state.quote) {
+ styles.push(quote);
+
+ // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
+ if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+ styles.push(quote + "-" + state.quote);
+ } else {
+ styles.push(quote + "-" + modeCfg.maxBlockquoteDepth);
+ }
+ }
+
+ if (state.list !== false) {
+ var listMod = (state.listDepth - 1) % 3;
+ if (!listMod) {
+ styles.push(list1);
+ } else if (listMod === 1) {
+ styles.push(list2);
+ } else {
+ styles.push(list3);
+ }
+ }
+
+ if (state.trailingSpaceNewLine) {
+ styles.push("trailing-space-new-line");
+ } else if (state.trailingSpace) {
+ styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
+ }
+
+ return styles.length ? styles.join(' ') : null;
+ }
+
+ function handleText(stream, state) {
+ if (stream.match(textRE, true)) {
+ return getType(state);
+ }
+ return undefined;
+ }
+
+ function inlineNormal(stream, state) {
+ var style = state.text(stream, state);
+ if (typeof style !== 'undefined')
+ return style;
+
+ if (state.list) { // List marker (*, +, -, 1., etc)
+ state.list = null;
+ return getType(state);
+ }
+
+ if (state.taskList) {
+ var taskOpen = stream.match(taskListRE, true)[1] !== "x";
+ if (taskOpen) state.taskOpen = true;
+ else state.taskClosed = true;
+ if (modeCfg.highlightFormatting) state.formatting = "task";
+ state.taskList = false;
+ return getType(state);
+ }
+
+ state.taskOpen = false;
+ state.taskClosed = false;
+
+ if (state.header && stream.match(/^#+$/, true)) {
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ return getType(state);
+ }
+
+ // Get sol() value now, before character is consumed
+ var sol = stream.sol();
+
+ var ch = stream.next();
+
+ if (ch === '\\') {
+ stream.next();
+ if (modeCfg.highlightFormatting) {
+ var type = getType(state);
+ return type ? type + " formatting-escape" : "formatting-escape";
+ }
+ }
+
+ // Matches link titles present on next line
+ if (state.linkTitle) {
+ state.linkTitle = false;
+ var matchCh = ch;
+ if (ch === '(') {
+ matchCh = ')';
+ }
+ matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+ var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
+ if (stream.match(new RegExp(regex), true)) {
+ return linkhref;
+ }
+ }
+
+ // If this block is changed, it may need to be updated in GFM mode
+ if (ch === '`') {
+ var previousFormatting = state.formatting;
+ if (modeCfg.highlightFormatting) state.formatting = "code";
+ var t = getType(state);
+ var before = stream.pos;
+ stream.eatWhile('`');
+ var difference = 1 + stream.pos - before;
+ if (!state.code) {
+ codeDepth = difference;
+ state.code = true;
+ return getType(state);
+ } else {
+ if (difference === codeDepth) { // Must be exact
+ state.code = false;
+ return t;
+ }
+ state.formatting = previousFormatting;
+ return getType(state);
+ }
+ } else if (state.code) {
+ return getType(state);
+ }
+
+ if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
+ stream.match(/\[[^\]]*\]/);
+ state.inline = state.f = linkHref;
+ return image;
+ }
+
+ if (ch === '[' && stream.match(/.*\](\(.*\)| ?\[.*\])/, false)) {
+ state.linkText = true;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ return getType(state);
+ }
+
+ if (ch === ']' && state.linkText && stream.match(/\(.*\)| ?\[.*\]/, false)) {
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ state.linkText = false;
+ state.inline = state.f = linkHref;
+ return type;
+ }
+
+ if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
+ state.f = state.inline = linkInline;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + linkinline;
+ }
+
+ if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
+ state.f = state.inline = linkInline;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + linkemail;
+ }
+
+ if (ch === '<' && stream.match(/^(!--|\w)/, false)) {
+ var end = stream.string.indexOf(">", stream.pos);
+ if (end != -1) {
+ var atts = stream.string.substring(stream.start, end);
+ if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
+ }
+ stream.backUp(1);
+ state.htmlState = CodeMirror.startState(htmlMode);
+ return switchBlock(stream, state, htmlBlock);
+ }
+
+ if (ch === '<' && stream.match(/^\/\w*?>/)) {
+ state.md_inside = false;
+ return "tag";
+ }
+
+ var ignoreUnderscore = false;
+ if (!modeCfg.underscoresBreakWords) {
+ if (ch === '_' && stream.peek() !== '_' && stream.match(/(\w)/, false)) {
+ var prevPos = stream.pos - 2;
+ if (prevPos >= 0) {
+ var prevCh = stream.string.charAt(prevPos);
+ if (prevCh !== '_' && prevCh.match(/(\w)/, false)) {
+ ignoreUnderscore = true;
+ }
+ }
+ }
+ }
+ if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
+ if (sol && stream.peek() === ' ') {
+ // Do nothing, surrounded by newline and space
+ } else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
+ if (modeCfg.highlightFormatting) state.formatting = "strong";
+ var t = getType(state);
+ state.strong = false;
+ return t;
+ } else if (!state.strong && stream.eat(ch)) { // Add STRONG
+ state.strong = ch;
+ if (modeCfg.highlightFormatting) state.formatting = "strong";
+ return getType(state);
+ } else if (state.em === ch) { // Remove EM
+ if (modeCfg.highlightFormatting) state.formatting = "em";
+ var t = getType(state);
+ state.em = false;
+ return t;
+ } else if (!state.em) { // Add EM
+ state.em = ch;
+ if (modeCfg.highlightFormatting) state.formatting = "em";
+ return getType(state);
+ }
+ } else if (ch === ' ') {
+ if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
+ if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+ return getType(state);
+ } else { // Not surrounded by spaces, back up pointer
+ stream.backUp(1);
+ }
+ }
+ }
+
+ if (modeCfg.strikethrough) {
+ if (ch === '~' && stream.eatWhile(ch)) {
+ if (state.strikethrough) {// Remove strikethrough
+ if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+ var t = getType(state);
+ state.strikethrough = false;
+ return t;
+ } else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
+ state.strikethrough = true;
+ if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+ return getType(state);
+ }
+ } else if (ch === ' ') {
+ if (stream.match(/^~~/, true)) { // Probably surrounded by space
+ if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+ return getType(state);
+ } else { // Not surrounded by spaces, back up pointer
+ stream.backUp(2);
+ }
+ }
+ }
+ }
+
+ if (ch === ' ') {
+ if (stream.match(/ +$/, false)) {
+ state.trailingSpace++;
+ } else if (state.trailingSpace) {
+ state.trailingSpaceNewLine = true;
+ }
+ }
+
+ return getType(state);
+ }
+
+ function linkInline(stream, state) {
+ var ch = stream.next();
+
+ if (ch === ">") {
+ state.f = state.inline = inlineNormal;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + linkinline;
+ }
+
+ stream.match(/^[^>]+/, true);
+
+ return linkinline;
+ }
+
+ function linkHref(stream, state) {
+ // Check if space, and return NULL if so (to avoid marking the space)
+ if(stream.eatSpace()){
+ return null;
+ }
+ var ch = stream.next();
+ if (ch === '(' || ch === '[') {
+ state.f = state.inline = getLinkHrefInside(ch === "(" ? ")" : "]");
+ if (modeCfg.highlightFormatting) state.formatting = "link-string";
+ state.linkHref = true;
+ return getType(state);
+ }
+ return 'error';
+ }
+
+ function getLinkHrefInside(endChar) {
+ return function(stream, state) {
+ var ch = stream.next();
+
+ if (ch === endChar) {
+ state.f = state.inline = inlineNormal;
+ if (modeCfg.highlightFormatting) state.formatting = "link-string";
+ var returnState = getType(state);
+ state.linkHref = false;
+ return returnState;
+ }
+
+ if (stream.match(inlineRE(endChar), true)) {
+ stream.backUp(1);
+ }
+
+ state.linkHref = true;
+ return getType(state);
+ };
+ }
+
+ function footnoteLink(stream, state) {
+ if (stream.match(/^[^\]]*\]:/, false)) {
+ state.f = footnoteLinkInside;
+ stream.next(); // Consume [
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ state.linkText = true;
+ return getType(state);
+ }
+ return switchInline(stream, state, inlineNormal);
+ }
+
+ function footnoteLinkInside(stream, state) {
+ if (stream.match(/^\]:/, true)) {
+ state.f = state.inline = footnoteUrl;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var returnType = getType(state);
+ state.linkText = false;
+ return returnType;
+ }
+
+ stream.match(/^[^\]]+/, true);
+
+ return linktext;
+ }
+
+ function footnoteUrl(stream, state) {
+ // Check if space, and return NULL if so (to avoid marking the space)
+ if(stream.eatSpace()){
+ return null;
+ }
+ // Match URL
+ stream.match(/^[^\s]+/, true);
+ // Check for link title
+ if (stream.peek() === undefined) { // End of line, set flag to check next line
+ state.linkTitle = true;
+ } else { // More content on line, check if link title
+ stream.match(/^(?:\s+(?:"(?:[^"\\]|\\\\|\\.)+"|'(?:[^'\\]|\\\\|\\.)+'|\((?:[^)\\]|\\\\|\\.)+\)))?/, true);
+ }
+ state.f = state.inline = inlineNormal;
+ return linkhref + " url";
+ }
+
+ var savedInlineRE = [];
+ function inlineRE(endChar) {
+ if (!savedInlineRE[endChar]) {
+ // Escape endChar for RegExp (taken from http://stackoverflow.com/a/494122/526741)
+ endChar = (endChar+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+ // Match any non-endChar, escaped character, as well as the closing
+ // endChar.
+ savedInlineRE[endChar] = new RegExp('^(?:[^\\\\]|\\\\.)*?(' + endChar + ')');
+ }
+ return savedInlineRE[endChar];
+ }
+
+ var mode = {
+ startState: function() {
+ return {
+ f: blockNormal,
+
+ prevLine: null,
+ thisLine: null,
+
+ block: blockNormal,
+ htmlState: null,
+ indentation: 0,
+
+ inline: inlineNormal,
+ text: handleText,
+
+ formatting: false,
+ linkText: false,
+ linkHref: false,
+ linkTitle: false,
+ em: false,
+ strong: false,
+ header: 0,
+ hr: false,
+ taskList: false,
+ list: false,
+ listDepth: 0,
+ quote: 0,
+ trailingSpace: 0,
+ trailingSpaceNewLine: false,
+ strikethrough: false,
+ fencedChars: null
+ };
+ },
+
+ copyState: function(s) {
+ return {
+ f: s.f,
+
+ prevLine: s.prevLine,
+ thisLine: s.this,
+
+ block: s.block,
+ htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
+ indentation: s.indentation,
+
+ localMode: s.localMode,
+ localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,
+
+ inline: s.inline,
+ text: s.text,
+ formatting: false,
+ linkTitle: s.linkTitle,
+ code: s.code,
+ em: s.em,
+ strong: s.strong,
+ strikethrough: s.strikethrough,
+ header: s.header,
+ hr: s.hr,
+ taskList: s.taskList,
+ list: s.list,
+ listDepth: s.listDepth,
+ quote: s.quote,
+ indentedCode: s.indentedCode,
+ trailingSpace: s.trailingSpace,
+ trailingSpaceNewLine: s.trailingSpaceNewLine,
+ md_inside: s.md_inside,
+ fencedChars: s.fencedChars
+ };
+ },
+
+ token: function(stream, state) {
+
+ // Reset state.formatting
+ state.formatting = false;
+
+ if (stream != state.thisLine) {
+ var forceBlankLine = state.header || state.hr;
+
+ // Reset state.header and state.hr
+ state.header = 0;
+ state.hr = false;
+
+ if (stream.match(/^\s*$/, true) || forceBlankLine) {
+ blankLine(state);
+ if (!forceBlankLine) return null
+ state.prevLine = null
+ }
+
+ state.prevLine = state.thisLine
+ state.thisLine = stream
+
+ // Reset state.taskList
+ state.taskList = false;
+
+ // Reset state.trailingSpace
+ state.trailingSpace = 0;
+ state.trailingSpaceNewLine = false;
+
+ state.f = state.block;
+ var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, ' ').length;
+ var difference = Math.floor((indentation - state.indentation) / 4) * 4;
+ if (difference > 4) difference = 4;
+ var adjustedIndentation = state.indentation + difference;
+ state.indentationDiff = adjustedIndentation - state.indentation;
+ state.indentation = adjustedIndentation;
+ if (indentation > 0) return null;
+ }
+ return state.f(stream, state);
+ },
+
+ innerMode: function(state) {
+ if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
+ if (state.localState) return {state: state.localState, mode: state.localMode};
+ return {state: state, mode: mode};
+ },
+
+ blankLine: blankLine,
+
+ getType: getType,
+
+ fold: "markdown"
+ };
+ return mode;
+}, "xml");
+
+CodeMirror.defineMIME("text/x-markdown", "markdown");
+
+});
+
+},{"../../lib/codemirror":6,"../meta":9,"../xml/xml":10}],9:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.modeInfo = [
+ {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
+ {name: "PGP", mimes: ["application/pgp", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["pgp"]},
+ {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
+ {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
+ {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
+ {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h"]},
+ {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
+ {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy"]},
+ {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp"]},
+ {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj"]},
+ {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
+ {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists.txt$/},
+ {name: "CoffeeScript", mime: "text/x-coffeescript", mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
+ {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
+ {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
+ {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
+ {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
+ {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
+ {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
+ {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
+ {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
+ {name: "Django", mime: "text/x-django", mode: "django"},
+ {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
+ {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
+ {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
+ {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
+ {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
+ {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
+ {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
+ {name: "Embedded Javascript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
+ {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
+ {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
+ {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
+ {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
+ {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90"]},
+ {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
+ {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
+ {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
+ {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history).md$/i},
+ {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
+ {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy"]},
+ {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
+ {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
+ {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
+ {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
+ {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
+ {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm"], alias: ["xhtml"]},
+ {name: "HTTP", mime: "message/http", mode: "http"},
+ {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
+ {name: "Jade", mime: "text/x-jade", mode: "jade", ext: ["jade"]},
+ {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
+ {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
+ {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
+ mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
+ {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
+ {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
+ {name: "Jinja2", mime: "null", mode: "jinja2"},
+ {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"]},
+ {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
+ {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
+ {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
+ {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
+ {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
+ {name: "mIRC", mime: "text/mirc", mode: "mirc"},
+ {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
+ {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb"]},
+ {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
+ {name: "MUMPS", mime: "text/x-mumps", mode: "mumps"},
+ {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
+ {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
+ {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
+ {name: "NTriples", mime: "text/n-triples", mode: "ntriples", ext: ["nt"]},
+ {name: "Objective C", mime: "text/x-objectivec", mode: "clike", ext: ["m", "mm"]},
+ {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
+ {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
+ {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
+ {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
+ {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
+ {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
+ {name: "PHP", mime: "application/x-httpd-php", mode: "php", ext: ["php", "php3", "php4", "php5", "phtml"]},
+ {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
+ {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
+ {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
+ {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
+ {name: "Python", mime: "text/x-python", mode: "python", ext: ["py", "pyw"]},
+ {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
+ {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
+ {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r"], alias: ["rscript"]},
+ {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
+ {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
+ {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
+ {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
+ {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
+ {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
+ {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
+ {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
+ {name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
+ {name: "Shell", mime: "text/x-sh", mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"]},
+ {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
+ {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
+ {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
+ {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
+ {name: "Solr", mime: "text/x-solr", mode: "solr"},
+ {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
+ {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
+ {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
+ {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
+ {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
+ {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
+ {name: "MariaDB", mime: "text/x-mariadb", mode: "sql"},
+ {name: "sTeX", mime: "text/x-stex", mode: "stex"},
+ {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx"], alias: ["tex"]},
+ {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v"]},
+ {name: "Tcl", mime: "text/x-tcl", mode: "tcl", ext: ["tcl"]},
+ {name: "Textile", mime: "text/x-textile", mode: "textile", ext: ["textile"]},
+ {name: "TiddlyWiki ", mime: "text/x-tiddlywiki", mode: "tiddlywiki"},
+ {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
+ {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
+ {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
+ {name: "troff", mime: "troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
+ {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
+ {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
+ {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
+ {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
+ {name: "Twig", mime: "text/x-twig", mode: "twig"},
+ {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
+ {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
+ {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
+ {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
+ {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
+ {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd"], alias: ["rss", "wsdl", "xsd"]},
+ {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
+ {name: "YAML", mime: "text/x-yaml", mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
+ {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
+ {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
+ {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
+ {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]}
+ ];
+ // Ensure all modes have a mime property for backwards compatibility
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.mimes) info.mime = info.mimes[0];
+ }
+
+ CodeMirror.findModeByMIME = function(mime) {
+ mime = mime.toLowerCase();
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.mime == mime) return info;
+ if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
+ if (info.mimes[j] == mime) return info;
+ }
+ };
+
+ CodeMirror.findModeByExtension = function(ext) {
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.ext) for (var j = 0; j < info.ext.length; j++)
+ if (info.ext[j] == ext) return info;
+ }
+ };
+
+ CodeMirror.findModeByFileName = function(filename) {
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.file && info.file.test(filename)) return info;
+ }
+ var dot = filename.lastIndexOf(".");
+ var ext = dot > -1 && filename.substring(dot + 1, filename.length);
+ if (ext) return CodeMirror.findModeByExtension(ext);
+ };
+
+ CodeMirror.findModeByName = function(name) {
+ name = name.toLowerCase();
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.name.toLowerCase() == name) return info;
+ if (info.alias) for (var j = 0; j < info.alias.length; j++)
+ if (info.alias[j].toLowerCase() == name) return info;
+ }
+ };
+});
+
+},{"../lib/codemirror":6}],10:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("xml", function(config, parserConfig) {
+ var indentUnit = config.indentUnit;
+ var multilineTagIndentFactor = parserConfig.multilineTagIndentFactor || 1;
+ var multilineTagIndentPastTag = parserConfig.multilineTagIndentPastTag;
+ if (multilineTagIndentPastTag == null) multilineTagIndentPastTag = true;
+
+ var Kludges = parserConfig.htmlMode ? {
+ autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
+ 'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
+ 'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
+ 'track': true, 'wbr': true, 'menuitem': true},
+ implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
+ 'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
+ 'th': true, 'tr': true},
+ contextGrabbers: {
+ 'dd': {'dd': true, 'dt': true},
+ 'dt': {'dd': true, 'dt': true},
+ 'li': {'li': true},
+ 'option': {'option': true, 'optgroup': true},
+ 'optgroup': {'optgroup': true},
+ 'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
+ 'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
+ 'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
+ 'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
+ 'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
+ 'rp': {'rp': true, 'rt': true},
+ 'rt': {'rp': true, 'rt': true},
+ 'tbody': {'tbody': true, 'tfoot': true},
+ 'td': {'td': true, 'th': true},
+ 'tfoot': {'tbody': true},
+ 'th': {'td': true, 'th': true},
+ 'thead': {'tbody': true, 'tfoot': true},
+ 'tr': {'tr': true}
+ },
+ doNotIndent: {"pre": true},
+ allowUnquoted: true,
+ allowMissing: true,
+ caseFold: true
+ } : {
+ autoSelfClosers: {},
+ implicitlyClosed: {},
+ contextGrabbers: {},
+ doNotIndent: {},
+ allowUnquoted: false,
+ allowMissing: false,
+ caseFold: false
+ };
+ var alignCDATA = parserConfig.alignCDATA;
+
+ // Return variables for tokenizers
+ var type, setStyle;
+
+ function inText(stream, state) {
+ function chain(parser) {
+ state.tokenize = parser;
+ return parser(stream, state);
+ }
+
+ var ch = stream.next();
+ if (ch == "<") {
+ if (stream.eat("!")) {
+ if (stream.eat("[")) {
+ if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
+ else return null;
+ } else if (stream.match("--")) {
+ return chain(inBlock("comment", "-->"));
+ } else if (stream.match("DOCTYPE", true, true)) {
+ stream.eatWhile(/[\w\._\-]/);
+ return chain(doctype(1));
+ } else {
+ return null;
+ }
+ } else if (stream.eat("?")) {
+ stream.eatWhile(/[\w\._\-]/);
+ state.tokenize = inBlock("meta", "?>");
+ return "meta";
+ } else {
+ type = stream.eat("/") ? "closeTag" : "openTag";
+ state.tokenize = inTag;
+ return "tag bracket";
+ }
+ } else if (ch == "&") {
+ var ok;
+ if (stream.eat("#")) {
+ if (stream.eat("x")) {
+ ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
+ } else {
+ ok = stream.eatWhile(/[\d]/) && stream.eat(";");
+ }
+ } else {
+ ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
+ }
+ return ok ? "atom" : "error";
+ } else {
+ stream.eatWhile(/[^&<]/);
+ return null;
+ }
+ }
+ inText.isInText = true;
+
+ function inTag(stream, state) {
+ var ch = stream.next();
+ if (ch == ">" || (ch == "/" && stream.eat(">"))) {
+ state.tokenize = inText;
+ type = ch == ">" ? "endTag" : "selfcloseTag";
+ return "tag bracket";
+ } else if (ch == "=") {
+ type = "equals";
+ return null;
+ } else if (ch == "<") {
+ state.tokenize = inText;
+ state.state = baseState;
+ state.tagName = state.tagStart = null;
+ var next = state.tokenize(stream, state);
+ return next ? next + " tag error" : "tag error";
+ } else if (/[\'\"]/.test(ch)) {
+ state.tokenize = inAttribute(ch);
+ state.stringStartCol = stream.column();
+ return state.tokenize(stream, state);
+ } else {
+ stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
+ return "word";
+ }
+ }
+
+ function inAttribute(quote) {
+ var closure = function(stream, state) {
+ while (!stream.eol()) {
+ if (stream.next() == quote) {
+ state.tokenize = inTag;
+ break;
+ }
+ }
+ return "string";
+ };
+ closure.isInAttribute = true;
+ return closure;
+ }
+
+ function inBlock(style, terminator) {
+ return function(stream, state) {
+ while (!stream.eol()) {
+ if (stream.match(terminator)) {
+ state.tokenize = inText;
+ break;
+ }
+ stream.next();
+ }
+ return style;
+ };
+ }
+ function doctype(depth) {
+ return function(stream, state) {
+ var ch;
+ while ((ch = stream.next()) != null) {
+ if (ch == "<") {
+ state.tokenize = doctype(depth + 1);
+ return state.tokenize(stream, state);
+ } else if (ch == ">") {
+ if (depth == 1) {
+ state.tokenize = inText;
+ break;
+ } else {
+ state.tokenize = doctype(depth - 1);
+ return state.tokenize(stream, state);
+ }
+ }
+ }
+ return "meta";
+ };
+ }
+
+ function Context(state, tagName, startOfLine) {
+ this.prev = state.context;
+ this.tagName = tagName;
+ this.indent = state.indented;
+ this.startOfLine = startOfLine;
+ if (Kludges.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
+ this.noIndent = true;
+ }
+ function popContext(state) {
+ if (state.context) state.context = state.context.prev;
+ }
+ function maybePopContext(state, nextTagName) {
+ var parentTagName;
+ while (true) {
+ if (!state.context) {
+ return;
+ }
+ parentTagName = state.context.tagName;
+ if (!Kludges.contextGrabbers.hasOwnProperty(parentTagName) ||
+ !Kludges.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
+ return;
+ }
+ popContext(state);
+ }
+ }
+
+ function baseState(type, stream, state) {
+ if (type == "openTag") {
+ state.tagStart = stream.column();
+ return tagNameState;
+ } else if (type == "closeTag") {
+ return closeTagNameState;
+ } else {
+ return baseState;
+ }
+ }
+ function tagNameState(type, stream, state) {
+ if (type == "word") {
+ state.tagName = stream.current();
+ setStyle = "tag";
+ return attrState;
+ } else {
+ setStyle = "error";
+ return tagNameState;
+ }
+ }
+ function closeTagNameState(type, stream, state) {
+ if (type == "word") {
+ var tagName = stream.current();
+ if (state.context && state.context.tagName != tagName &&
+ Kludges.implicitlyClosed.hasOwnProperty(state.context.tagName))
+ popContext(state);
+ if (state.context && state.context.tagName == tagName) {
+ setStyle = "tag";
+ return closeState;
+ } else {
+ setStyle = "tag error";
+ return closeStateErr;
+ }
+ } else {
+ setStyle = "error";
+ return closeStateErr;
+ }
+ }
+
+ function closeState(type, _stream, state) {
+ if (type != "endTag") {
+ setStyle = "error";
+ return closeState;
+ }
+ popContext(state);
+ return baseState;
+ }
+ function closeStateErr(type, stream, state) {
+ setStyle = "error";
+ return closeState(type, stream, state);
+ }
+
+ function attrState(type, _stream, state) {
+ if (type == "word") {
+ setStyle = "attribute";
+ return attrEqState;
+ } else if (type == "endTag" || type == "selfcloseTag") {
+ var tagName = state.tagName, tagStart = state.tagStart;
+ state.tagName = state.tagStart = null;
+ if (type == "selfcloseTag" ||
+ Kludges.autoSelfClosers.hasOwnProperty(tagName)) {
+ maybePopContext(state, tagName);
+ } else {
+ maybePopContext(state, tagName);
+ state.context = new Context(state, tagName, tagStart == state.indented);
+ }
+ return baseState;
+ }
+ setStyle = "error";
+ return attrState;
+ }
+ function attrEqState(type, stream, state) {
+ if (type == "equals") return attrValueState;
+ if (!Kludges.allowMissing) setStyle = "error";
+ return attrState(type, stream, state);
+ }
+ function attrValueState(type, stream, state) {
+ if (type == "string") return attrContinuedState;
+ if (type == "word" && Kludges.allowUnquoted) {setStyle = "string"; return attrState;}
+ setStyle = "error";
+ return attrState(type, stream, state);
+ }
+ function attrContinuedState(type, stream, state) {
+ if (type == "string") return attrContinuedState;
+ return attrState(type, stream, state);
+ }
+
+ return {
+ startState: function() {
+ return {tokenize: inText,
+ state: baseState,
+ indented: 0,
+ tagName: null, tagStart: null,
+ context: null};
+ },
+
+ token: function(stream, state) {
+ if (!state.tagName && stream.sol())
+ state.indented = stream.indentation();
+
+ if (stream.eatSpace()) return null;
+ type = null;
+ var style = state.tokenize(stream, state);
+ if ((style || type) && style != "comment") {
+ setStyle = null;
+ state.state = state.state(type || style, stream, state);
+ if (setStyle)
+ style = setStyle == "error" ? style + " error" : setStyle;
+ }
+ return style;
+ },
+
+ indent: function(state, textAfter, fullLine) {
+ var context = state.context;
+ // Indent multi-line strings (e.g. css).
+ if (state.tokenize.isInAttribute) {
+ if (state.tagStart == state.indented)
+ return state.stringStartCol + 1;
+ else
+ return state.indented + indentUnit;
+ }
+ if (context && context.noIndent) return CodeMirror.Pass;
+ if (state.tokenize != inTag && state.tokenize != inText)
+ return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
+ // Indent the starts of attribute names.
+ if (state.tagName) {
+ if (multilineTagIndentPastTag)
+ return state.tagStart + state.tagName.length + 2;
+ else
+ return state.tagStart + indentUnit * multilineTagIndentFactor;
+ }
+ if (alignCDATA && /$/,
+ blockCommentStart: "",
+
+ configuration: parserConfig.htmlMode ? "html" : "xml",
+ helperType: parserConfig.htmlMode ? "html" : "xml"
+ };
+});
+
+CodeMirror.defineMIME("text/xml", "xml");
+CodeMirror.defineMIME("application/xml", "xml");
+if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
+ CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
+
+});
+
+},{"../../lib/codemirror":6}],11:[function(require,module,exports){
+(function (global){
+/**
+ * marked - a markdown parser
+ * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/chjj/marked
+ */
+
+;(function() {
+
+/**
+ * Block-Level Grammar
+ */
+
+var block = {
+ newline: /^\n+/,
+ code: /^( {4}[^\n]+\n*)+/,
+ fences: noop,
+ hr: /^( *[-*_]){3,} *(?:\n+|$)/,
+ heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
+ nptable: noop,
+ lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
+ blockquote: /^( *>[^\n]+(\n(?!def)[^\n]+)*\n*)+/,
+ list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+ html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/,
+ def: /^ *\[([^\]]+)\]: *([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
+ table: noop,
+ paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
+ text: /^[^\n]+/
+};
+
+block.bullet = /(?:[*+-]|\d+\.)/;
+block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
+block.item = replace(block.item, 'gm')
+ (/bull/g, block.bullet)
+ ();
+
+block.list = replace(block.list)
+ (/bull/g, block.bullet)
+ ('hr', '\\n+(?=\\1?(?:[-*_] *){3,}(?:\\n+|$))')
+ ('def', '\\n+(?=' + block.def.source + ')')
+ ();
+
+block.blockquote = replace(block.blockquote)
+ ('def', block.def)
+ ();
+
+block._tag = '(?!(?:'
+ + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
+ + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
+ + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|[^\\w\\s@]*@)\\b';
+
+block.html = replace(block.html)
+ ('comment', //)
+ ('closed', /<(tag)[\s\S]+?<\/\1>/)
+ ('closing', /])*?>/)
+ (/tag/g, block._tag)
+ ();
+
+block.paragraph = replace(block.paragraph)
+ ('hr', block.hr)
+ ('heading', block.heading)
+ ('lheading', block.lheading)
+ ('blockquote', block.blockquote)
+ ('tag', '<' + block._tag)
+ ('def', block.def)
+ ();
+
+/**
+ * Normal Block Grammar
+ */
+
+block.normal = merge({}, block);
+
+/**
+ * GFM Block Grammar
+ */
+
+block.gfm = merge({}, block.normal, {
+ fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\s*\1 *(?:\n+|$)/,
+ paragraph: /^/,
+ heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
+});
+
+block.gfm.paragraph = replace(block.paragraph)
+ ('(?!', '(?!'
+ + block.gfm.fences.source.replace('\\1', '\\2') + '|'
+ + block.list.source.replace('\\1', '\\3') + '|')
+ ();
+
+/**
+ * GFM + Tables Block Grammar
+ */
+
+block.tables = merge({}, block.gfm, {
+ nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
+ table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
+});
+
+/**
+ * Block Lexer
+ */
+
+function Lexer(options) {
+ this.tokens = [];
+ this.tokens.links = {};
+ this.options = options || marked.defaults;
+ this.rules = block.normal;
+
+ if (this.options.gfm) {
+ if (this.options.tables) {
+ this.rules = block.tables;
+ } else {
+ this.rules = block.gfm;
+ }
+ }
+}
+
+/**
+ * Expose Block Rules
+ */
+
+Lexer.rules = block;
+
+/**
+ * Static Lex Method
+ */
+
+Lexer.lex = function(src, options) {
+ var lexer = new Lexer(options);
+ return lexer.lex(src);
+};
+
+/**
+ * Preprocessing
+ */
+
+Lexer.prototype.lex = function(src) {
+ src = src
+ .replace(/\r\n|\r/g, '\n')
+ .replace(/\t/g, ' ')
+ .replace(/\u00a0/g, ' ')
+ .replace(/\u2424/g, '\n');
+
+ return this.token(src, true);
+};
+
+/**
+ * Lexing
+ */
+
+Lexer.prototype.token = function(src, top, bq) {
+ var src = src.replace(/^ +$/gm, '')
+ , next
+ , loose
+ , cap
+ , bull
+ , b
+ , item
+ , space
+ , i
+ , l;
+
+ while (src) {
+ // newline
+ if (cap = this.rules.newline.exec(src)) {
+ src = src.substring(cap[0].length);
+ if (cap[0].length > 1) {
+ this.tokens.push({
+ type: 'space'
+ });
+ }
+ }
+
+ // code
+ if (cap = this.rules.code.exec(src)) {
+ src = src.substring(cap[0].length);
+ cap = cap[0].replace(/^ {4}/gm, '');
+ this.tokens.push({
+ type: 'code',
+ text: !this.options.pedantic
+ ? cap.replace(/\n+$/, '')
+ : cap
+ });
+ continue;
+ }
+
+ // fences (gfm)
+ if (cap = this.rules.fences.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'code',
+ lang: cap[2],
+ text: cap[3] || ''
+ });
+ continue;
+ }
+
+ // heading
+ if (cap = this.rules.heading.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'heading',
+ depth: cap[1].length,
+ text: cap[2]
+ });
+ continue;
+ }
+
+ // table no leading pipe (gfm)
+ if (top && (cap = this.rules.nptable.exec(src))) {
+ src = src.substring(cap[0].length);
+
+ item = {
+ type: 'table',
+ header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
+ align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+ cells: cap[3].replace(/\n$/, '').split('\n')
+ };
+
+ for (i = 0; i < item.align.length; i++) {
+ if (/^ *-+: *$/.test(item.align[i])) {
+ item.align[i] = 'right';
+ } else if (/^ *:-+: *$/.test(item.align[i])) {
+ item.align[i] = 'center';
+ } else if (/^ *:-+ *$/.test(item.align[i])) {
+ item.align[i] = 'left';
+ } else {
+ item.align[i] = null;
+ }
+ }
+
+ for (i = 0; i < item.cells.length; i++) {
+ item.cells[i] = item.cells[i].split(/ *\| */);
+ }
+
+ this.tokens.push(item);
+
+ continue;
+ }
+
+ // lheading
+ if (cap = this.rules.lheading.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'heading',
+ depth: cap[2] === '=' ? 1 : 2,
+ text: cap[1]
+ });
+ continue;
+ }
+
+ // hr
+ if (cap = this.rules.hr.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'hr'
+ });
+ continue;
+ }
+
+ // blockquote
+ if (cap = this.rules.blockquote.exec(src)) {
+ src = src.substring(cap[0].length);
+
+ this.tokens.push({
+ type: 'blockquote_start'
+ });
+
+ cap = cap[0].replace(/^ *> ?/gm, '');
+
+ // Pass `top` to keep the current
+ // "toplevel" state. This is exactly
+ // how markdown.pl works.
+ this.token(cap, top, true);
+
+ this.tokens.push({
+ type: 'blockquote_end'
+ });
+
+ continue;
+ }
+
+ // list
+ if (cap = this.rules.list.exec(src)) {
+ src = src.substring(cap[0].length);
+ bull = cap[2];
+
+ this.tokens.push({
+ type: 'list_start',
+ ordered: bull.length > 1
+ });
+
+ // Get each top-level item.
+ cap = cap[0].match(this.rules.item);
+
+ next = false;
+ l = cap.length;
+ i = 0;
+
+ for (; i < l; i++) {
+ item = cap[i];
+
+ // Remove the list item's bullet
+ // so it is seen as the next token.
+ space = item.length;
+ item = item.replace(/^ *([*+-]|\d+\.) +/, '');
+
+ // Outdent whatever the
+ // list item contains. Hacky.
+ if (~item.indexOf('\n ')) {
+ space -= item.length;
+ item = !this.options.pedantic
+ ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
+ : item.replace(/^ {1,4}/gm, '');
+ }
+
+ // Determine whether the next list item belongs here.
+ // Backpedal if it does not belong in this list.
+ if (this.options.smartLists && i !== l - 1) {
+ b = block.bullet.exec(cap[i + 1])[0];
+ if (bull !== b && !(bull.length > 1 && b.length > 1)) {
+ src = cap.slice(i + 1).join('\n') + src;
+ i = l - 1;
+ }
+ }
+
+ // Determine whether item is loose or not.
+ // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
+ // for discount behavior.
+ loose = next || /\n\n(?!\s*$)/.test(item);
+ if (i !== l - 1) {
+ next = item.charAt(item.length - 1) === '\n';
+ if (!loose) loose = next;
+ }
+
+ this.tokens.push({
+ type: loose
+ ? 'loose_item_start'
+ : 'list_item_start'
+ });
+
+ // Recurse.
+ this.token(item, false, bq);
+
+ this.tokens.push({
+ type: 'list_item_end'
+ });
+ }
+
+ this.tokens.push({
+ type: 'list_end'
+ });
+
+ continue;
+ }
+
+ // html
+ if (cap = this.rules.html.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: this.options.sanitize
+ ? 'paragraph'
+ : 'html',
+ pre: !this.options.sanitizer
+ && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
+ text: cap[0]
+ });
+ continue;
+ }
+
+ // def
+ if ((!bq && top) && (cap = this.rules.def.exec(src))) {
+ src = src.substring(cap[0].length);
+ this.tokens.links[cap[1].toLowerCase()] = {
+ href: cap[2],
+ title: cap[3]
+ };
+ continue;
+ }
+
+ // table (gfm)
+ if (top && (cap = this.rules.table.exec(src))) {
+ src = src.substring(cap[0].length);
+
+ item = {
+ type: 'table',
+ header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
+ align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+ cells: cap[3].replace(/(?: *\| *)?\n$/, '').split('\n')
+ };
+
+ for (i = 0; i < item.align.length; i++) {
+ if (/^ *-+: *$/.test(item.align[i])) {
+ item.align[i] = 'right';
+ } else if (/^ *:-+: *$/.test(item.align[i])) {
+ item.align[i] = 'center';
+ } else if (/^ *:-+ *$/.test(item.align[i])) {
+ item.align[i] = 'left';
+ } else {
+ item.align[i] = null;
+ }
+ }
+
+ for (i = 0; i < item.cells.length; i++) {
+ item.cells[i] = item.cells[i]
+ .replace(/^ *\| *| *\| *$/g, '')
+ .split(/ *\| */);
+ }
+
+ this.tokens.push(item);
+
+ continue;
+ }
+
+ // top-level paragraph
+ if (top && (cap = this.rules.paragraph.exec(src))) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'paragraph',
+ text: cap[1].charAt(cap[1].length - 1) === '\n'
+ ? cap[1].slice(0, -1)
+ : cap[1]
+ });
+ continue;
+ }
+
+ // text
+ if (cap = this.rules.text.exec(src)) {
+ // Top-level should never reach here.
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'text',
+ text: cap[0]
+ });
+ continue;
+ }
+
+ if (src) {
+ throw new
+ Error('Infinite loop on byte: ' + src.charCodeAt(0));
+ }
+ }
+
+ return this.tokens;
+};
+
+/**
+ * Inline-Level Grammar
+ */
+
+var inline = {
+ escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
+ autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
+ url: noop,
+ tag: /^|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
+ link: /^!?\[(inside)\]\(href\)/,
+ reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
+ nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
+ strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
+ em: /^\b_((?:[^_]|__)+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
+ code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
+ br: /^ {2,}\n(?!\s*$)/,
+ del: noop,
+ text: /^[\s\S]+?(?=[\\?(?:\s+['"]([\s\S]*?)['"])?\s*/;
+
+inline.link = replace(inline.link)
+ ('inside', inline._inside)
+ ('href', inline._href)
+ ();
+
+inline.reflink = replace(inline.reflink)
+ ('inside', inline._inside)
+ ();
+
+/**
+ * Normal Inline Grammar
+ */
+
+inline.normal = merge({}, inline);
+
+/**
+ * Pedantic Inline Grammar
+ */
+
+inline.pedantic = merge({}, inline.normal, {
+ strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
+ em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
+});
+
+/**
+ * GFM Inline Grammar
+ */
+
+inline.gfm = merge({}, inline.normal, {
+ escape: replace(inline.escape)('])', '~|])')(),
+ url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/,
+ del: /^~~(?=\S)([\s\S]*?\S)~~/,
+ text: replace(inline.text)
+ (']|', '~]|')
+ ('|', '|https?://|')
+ ()
+});
+
+/**
+ * GFM + Line Breaks Inline Grammar
+ */
+
+inline.breaks = merge({}, inline.gfm, {
+ br: replace(inline.br)('{2,}', '*')(),
+ text: replace(inline.gfm.text)('{2,}', '*')()
+});
+
+/**
+ * Inline Lexer & Compiler
+ */
+
+function InlineLexer(links, options) {
+ this.options = options || marked.defaults;
+ this.links = links;
+ this.rules = inline.normal;
+ this.renderer = this.options.renderer || new Renderer;
+ this.renderer.options = this.options;
+
+ if (!this.links) {
+ throw new
+ Error('Tokens array requires a `links` property.');
+ }
+
+ if (this.options.gfm) {
+ if (this.options.breaks) {
+ this.rules = inline.breaks;
+ } else {
+ this.rules = inline.gfm;
+ }
+ } else if (this.options.pedantic) {
+ this.rules = inline.pedantic;
+ }
+}
+
+/**
+ * Expose Inline Rules
+ */
+
+InlineLexer.rules = inline;
+
+/**
+ * Static Lexing/Compiling Method
+ */
+
+InlineLexer.output = function(src, links, options) {
+ var inline = new InlineLexer(links, options);
+ return inline.output(src);
+};
+
+/**
+ * Lexing/Compiling
+ */
+
+InlineLexer.prototype.output = function(src) {
+ var out = ''
+ , link
+ , text
+ , href
+ , cap;
+
+ while (src) {
+ // escape
+ if (cap = this.rules.escape.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += cap[1];
+ continue;
+ }
+
+ // autolink
+ if (cap = this.rules.autolink.exec(src)) {
+ src = src.substring(cap[0].length);
+ if (cap[2] === '@') {
+ text = cap[1].charAt(6) === ':'
+ ? this.mangle(cap[1].substring(7))
+ : this.mangle(cap[1]);
+ href = this.mangle('mailto:') + text;
+ } else {
+ text = escape(cap[1]);
+ href = text;
+ }
+ out += this.renderer.link(href, null, text);
+ continue;
+ }
+
+ // url (gfm)
+ if (!this.inLink && (cap = this.rules.url.exec(src))) {
+ src = src.substring(cap[0].length);
+ text = escape(cap[1]);
+ href = text;
+ out += this.renderer.link(href, null, text);
+ continue;
+ }
+
+ // tag
+ if (cap = this.rules.tag.exec(src)) {
+ if (!this.inLink && /^/i.test(cap[0])) {
+ this.inLink = false;
+ }
+ src = src.substring(cap[0].length);
+ out += this.options.sanitize
+ ? this.options.sanitizer
+ ? this.options.sanitizer(cap[0])
+ : escape(cap[0])
+ : cap[0]
+ continue;
+ }
+
+ // link
+ if (cap = this.rules.link.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.inLink = true;
+ out += this.outputLink(cap, {
+ href: cap[2],
+ title: cap[3]
+ });
+ this.inLink = false;
+ continue;
+ }
+
+ // reflink, nolink
+ if ((cap = this.rules.reflink.exec(src))
+ || (cap = this.rules.nolink.exec(src))) {
+ src = src.substring(cap[0].length);
+ link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
+ link = this.links[link.toLowerCase()];
+ if (!link || !link.href) {
+ out += cap[0].charAt(0);
+ src = cap[0].substring(1) + src;
+ continue;
+ }
+ this.inLink = true;
+ out += this.outputLink(cap, link);
+ this.inLink = false;
+ continue;
+ }
+
+ // strong
+ if (cap = this.rules.strong.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.strong(this.output(cap[2] || cap[1]));
+ continue;
+ }
+
+ // em
+ if (cap = this.rules.em.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.em(this.output(cap[2] || cap[1]));
+ continue;
+ }
+
+ // code
+ if (cap = this.rules.code.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.codespan(escape(cap[2], true));
+ continue;
+ }
+
+ // br
+ if (cap = this.rules.br.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.br();
+ continue;
+ }
+
+ // del (gfm)
+ if (cap = this.rules.del.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.del(this.output(cap[1]));
+ continue;
+ }
+
+ // text
+ if (cap = this.rules.text.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.text(escape(this.smartypants(cap[0])));
+ continue;
+ }
+
+ if (src) {
+ throw new
+ Error('Infinite loop on byte: ' + src.charCodeAt(0));
+ }
+ }
+
+ return out;
+};
+
+/**
+ * Compile Link
+ */
+
+InlineLexer.prototype.outputLink = function(cap, link) {
+ var href = escape(link.href)
+ , title = link.title ? escape(link.title) : null;
+
+ return cap[0].charAt(0) !== '!'
+ ? this.renderer.link(href, title, this.output(cap[1]))
+ : this.renderer.image(href, title, escape(cap[1]));
+};
+
+/**
+ * Smartypants Transformations
+ */
+
+InlineLexer.prototype.smartypants = function(text) {
+ if (!this.options.smartypants) return text;
+ return text
+ // em-dashes
+ .replace(/---/g, '\u2014')
+ // en-dashes
+ .replace(/--/g, '\u2013')
+ // opening singles
+ .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
+ // closing singles & apostrophes
+ .replace(/'/g, '\u2019')
+ // opening doubles
+ .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
+ // closing doubles
+ .replace(/"/g, '\u201d')
+ // ellipses
+ .replace(/\.{3}/g, '\u2026');
+};
+
+/**
+ * Mangle Links
+ */
+
+InlineLexer.prototype.mangle = function(text) {
+ if (!this.options.mangle) return text;
+ var out = ''
+ , l = text.length
+ , i = 0
+ , ch;
+
+ for (; i < l; i++) {
+ ch = text.charCodeAt(i);
+ if (Math.random() > 0.5) {
+ ch = 'x' + ch.toString(16);
+ }
+ out += '' + ch + ';';
+ }
+
+ return out;
+};
+
+/**
+ * Renderer
+ */
+
+function Renderer(options) {
+ this.options = options || {};
+}
+
+Renderer.prototype.code = function(code, lang, escaped) {
+ if (this.options.highlight) {
+ var out = this.options.highlight(code, lang);
+ if (out != null && out !== code) {
+ escaped = true;
+ code = out;
+ }
+ }
+
+ if (!lang) {
+ return ''
+ + (escaped ? code : escape(code, true))
+ + '\n
';
+ }
+
+ return ''
+ + (escaped ? code : escape(code, true))
+ + '\n
\n';
+};
+
+Renderer.prototype.blockquote = function(quote) {
+ return '\n' + quote + '
\n';
+};
+
+Renderer.prototype.html = function(html) {
+ return html;
+};
+
+Renderer.prototype.heading = function(text, level, raw) {
+ return '\n';
+};
+
+Renderer.prototype.hr = function() {
+ return this.options.xhtml ? '
\n' : '
\n';
+};
+
+Renderer.prototype.list = function(body, ordered) {
+ var type = ordered ? 'ol' : 'ul';
+ return '<' + type + '>\n' + body + '' + type + '>\n';
+};
+
+Renderer.prototype.listitem = function(text) {
+ return '' + text + '\n';
+};
+
+Renderer.prototype.paragraph = function(text) {
+ return '' + text + '
\n';
+};
+
+Renderer.prototype.table = function(header, body) {
+ return '\n'
+ + '\n'
+ + header
+ + '\n'
+ + '\n'
+ + body
+ + '\n'
+ + '
\n';
+};
+
+Renderer.prototype.tablerow = function(content) {
+ return '\n' + content + '
\n';
+};
+
+Renderer.prototype.tablecell = function(content, flags) {
+ var type = flags.header ? 'th' : 'td';
+ var tag = flags.align
+ ? '<' + type + ' style="text-align:' + flags.align + '">'
+ : '<' + type + '>';
+ return tag + content + '' + type + '>\n';
+};
+
+// span level renderer
+Renderer.prototype.strong = function(text) {
+ return '' + text + '';
+};
+
+Renderer.prototype.em = function(text) {
+ return '' + text + '';
+};
+
+Renderer.prototype.codespan = function(text) {
+ return '' + text + '
';
+};
+
+Renderer.prototype.br = function() {
+ return this.options.xhtml ? '
' : '
';
+};
+
+Renderer.prototype.del = function(text) {
+ return '' + text + '';
+};
+
+Renderer.prototype.link = function(href, title, text) {
+ if (this.options.sanitize) {
+ try {
+ var prot = decodeURIComponent(unescape(href))
+ .replace(/[^\w:]/g, '')
+ .toLowerCase();
+ } catch (e) {
+ return '';
+ }
+ if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0) {
+ return '';
+ }
+ }
+ var out = '' + text + '';
+ return out;
+};
+
+Renderer.prototype.image = function(href, title, text) {
+ var out = '' : '>';
+ return out;
+};
+
+Renderer.prototype.text = function(text) {
+ return text;
+};
+
+/**
+ * Parsing & Compiling
+ */
+
+function Parser(options) {
+ this.tokens = [];
+ this.token = null;
+ this.options = options || marked.defaults;
+ this.options.renderer = this.options.renderer || new Renderer;
+ this.renderer = this.options.renderer;
+ this.renderer.options = this.options;
+}
+
+/**
+ * Static Parse Method
+ */
+
+Parser.parse = function(src, options, renderer) {
+ var parser = new Parser(options, renderer);
+ return parser.parse(src);
+};
+
+/**
+ * Parse Loop
+ */
+
+Parser.prototype.parse = function(src) {
+ this.inline = new InlineLexer(src.links, this.options, this.renderer);
+ this.tokens = src.reverse();
+
+ var out = '';
+ while (this.next()) {
+ out += this.tok();
+ }
+
+ return out;
+};
+
+/**
+ * Next Token
+ */
+
+Parser.prototype.next = function() {
+ return this.token = this.tokens.pop();
+};
+
+/**
+ * Preview Next Token
+ */
+
+Parser.prototype.peek = function() {
+ return this.tokens[this.tokens.length - 1] || 0;
+};
+
+/**
+ * Parse Text Tokens
+ */
+
+Parser.prototype.parseText = function() {
+ var body = this.token.text;
+
+ while (this.peek().type === 'text') {
+ body += '\n' + this.next().text;
+ }
+
+ return this.inline.output(body);
+};
+
+/**
+ * Parse Current Token
+ */
+
+Parser.prototype.tok = function() {
+ switch (this.token.type) {
+ case 'space': {
+ return '';
+ }
+ case 'hr': {
+ return this.renderer.hr();
+ }
+ case 'heading': {
+ return this.renderer.heading(
+ this.inline.output(this.token.text),
+ this.token.depth,
+ this.token.text);
+ }
+ case 'code': {
+ return this.renderer.code(this.token.text,
+ this.token.lang,
+ this.token.escaped);
+ }
+ case 'table': {
+ var header = ''
+ , body = ''
+ , i
+ , row
+ , cell
+ , flags
+ , j;
+
+ // header
+ cell = '';
+ for (i = 0; i < this.token.header.length; i++) {
+ flags = { header: true, align: this.token.align[i] };
+ cell += this.renderer.tablecell(
+ this.inline.output(this.token.header[i]),
+ { header: true, align: this.token.align[i] }
+ );
+ }
+ header += this.renderer.tablerow(cell);
+
+ for (i = 0; i < this.token.cells.length; i++) {
+ row = this.token.cells[i];
+
+ cell = '';
+ for (j = 0; j < row.length; j++) {
+ cell += this.renderer.tablecell(
+ this.inline.output(row[j]),
+ { header: false, align: this.token.align[j] }
+ );
+ }
+
+ body += this.renderer.tablerow(cell);
+ }
+ return this.renderer.table(header, body);
+ }
+ case 'blockquote_start': {
+ var body = '';
+
+ while (this.next().type !== 'blockquote_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.blockquote(body);
+ }
+ case 'list_start': {
+ var body = ''
+ , ordered = this.token.ordered;
+
+ while (this.next().type !== 'list_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.list(body, ordered);
+ }
+ case 'list_item_start': {
+ var body = '';
+
+ while (this.next().type !== 'list_item_end') {
+ body += this.token.type === 'text'
+ ? this.parseText()
+ : this.tok();
+ }
+
+ return this.renderer.listitem(body);
+ }
+ case 'loose_item_start': {
+ var body = '';
+
+ while (this.next().type !== 'list_item_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.listitem(body);
+ }
+ case 'html': {
+ var html = !this.token.pre && !this.options.pedantic
+ ? this.inline.output(this.token.text)
+ : this.token.text;
+ return this.renderer.html(html);
+ }
+ case 'paragraph': {
+ return this.renderer.paragraph(this.inline.output(this.token.text));
+ }
+ case 'text': {
+ return this.renderer.paragraph(this.parseText());
+ }
+ }
+};
+
+/**
+ * Helpers
+ */
+
+function escape(html, encode) {
+ return html
+ .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&')
+ .replace(//g, '>')
+ .replace(/"/g, '"')
+ .replace(/'/g, ''');
+}
+
+function unescape(html) {
+ return html.replace(/&([#\w]+);/g, function(_, n) {
+ n = n.toLowerCase();
+ if (n === 'colon') return ':';
+ if (n.charAt(0) === '#') {
+ return n.charAt(1) === 'x'
+ ? String.fromCharCode(parseInt(n.substring(2), 16))
+ : String.fromCharCode(+n.substring(1));
+ }
+ return '';
+ });
+}
+
+function replace(regex, opt) {
+ regex = regex.source;
+ opt = opt || '';
+ return function self(name, val) {
+ if (!name) return new RegExp(regex, opt);
+ val = val.source || val;
+ val = val.replace(/(^|[^\[])\^/g, '$1');
+ regex = regex.replace(name, val);
+ return self;
+ };
+}
+
+function noop() {}
+noop.exec = noop;
+
+function merge(obj) {
+ var i = 1
+ , target
+ , key;
+
+ for (; i < arguments.length; i++) {
+ target = arguments[i];
+ for (key in target) {
+ if (Object.prototype.hasOwnProperty.call(target, key)) {
+ obj[key] = target[key];
+ }
+ }
+ }
+
+ return obj;
+}
+
+
+/**
+ * Marked
+ */
+
+function marked(src, opt, callback) {
+ if (callback || typeof opt === 'function') {
+ if (!callback) {
+ callback = opt;
+ opt = null;
+ }
+
+ opt = merge({}, marked.defaults, opt || {});
+
+ var highlight = opt.highlight
+ , tokens
+ , pending
+ , i = 0;
+
+ try {
+ tokens = Lexer.lex(src, opt)
+ } catch (e) {
+ return callback(e);
+ }
+
+ pending = tokens.length;
+
+ var done = function(err) {
+ if (err) {
+ opt.highlight = highlight;
+ return callback(err);
+ }
+
+ var out;
+
+ try {
+ out = Parser.parse(tokens, opt);
+ } catch (e) {
+ err = e;
+ }
+
+ opt.highlight = highlight;
+
+ return err
+ ? callback(err)
+ : callback(null, out);
+ };
+
+ if (!highlight || highlight.length < 3) {
+ return done();
+ }
+
+ delete opt.highlight;
+
+ if (!pending) return done();
+
+ for (; i < tokens.length; i++) {
+ (function(token) {
+ if (token.type !== 'code') {
+ return --pending || done();
+ }
+ return highlight(token.text, token.lang, function(err, code) {
+ if (err) return done(err);
+ if (code == null || code === token.text) {
+ return --pending || done();
+ }
+ token.text = code;
+ token.escaped = true;
+ --pending || done();
+ });
+ })(tokens[i]);
+ }
+
+ return;
+ }
+ try {
+ if (opt) opt = merge({}, marked.defaults, opt);
+ return Parser.parse(Lexer.lex(src, opt), opt);
+ } catch (e) {
+ e.message += '\nPlease report this to https://github.com/chjj/marked.';
+ if ((opt || marked.defaults).silent) {
+ return 'An error occured:
'
+ + escape(e.message + '', true)
+ + '
';
+ }
+ throw e;
+ }
+}
+
+/**
+ * Options
+ */
+
+marked.options =
+marked.setOptions = function(opt) {
+ merge(marked.defaults, opt);
+ return marked;
+};
+
+marked.defaults = {
+ gfm: true,
+ tables: true,
+ breaks: false,
+ pedantic: false,
+ sanitize: false,
+ sanitizer: null,
+ mangle: true,
+ smartLists: false,
+ silent: false,
+ highlight: null,
+ langPrefix: 'lang-',
+ smartypants: false,
+ headerPrefix: '',
+ renderer: new Renderer,
+ xhtml: false
+};
+
+/**
+ * Expose
+ */
+
+marked.Parser = Parser;
+marked.parser = Parser.parse;
+
+marked.Renderer = Renderer;
+
+marked.Lexer = Lexer;
+marked.lexer = Lexer.lex;
+
+marked.InlineLexer = InlineLexer;
+marked.inlineLexer = InlineLexer.output;
+
+marked.parse = marked;
+
+if (typeof module !== 'undefined' && typeof exports === 'object') {
+ module.exports = marked;
+} else if (typeof define === 'function' && define.amd) {
+ define(function() { return marked; });
+} else {
+ this.marked = marked;
+}
+
+}).call(function() {
+ return this || (typeof window !== 'undefined' ? window : global);
+}());
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+
+},{}],12:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+var CodeMirror = require("codemirror");
+
+CodeMirror.commands.tabAndIndentMarkdownList = function (cm) {
+ var ranges = cm.listSelections();
+ var pos = ranges[0].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+
+ if (inList) {
+ cm.execCommand("indentMore");
+ return;
+ }
+
+ if (cm.options.indentWithTabs) {
+ cm.execCommand("insertTab");
+ }
+ else {
+ var spaces = Array(cm.options.tabSize + 1).join(" ");
+ cm.replaceSelection(spaces);
+ }
+};
+
+CodeMirror.commands.shiftTabAndUnindentMarkdownList = function (cm) {
+ var ranges = cm.listSelections();
+ var pos = ranges[0].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+
+ if (inList) {
+ cm.execCommand("indentLess");
+ return;
+ }
+
+ if (cm.options.indentWithTabs) {
+ cm.execCommand("insertTab");
+ }
+ else {
+ var spaces = Array(cm.options.tabSize + 1).join(" ");
+ cm.replaceSelection(spaces);
+ }
+};
+
+},{"codemirror":6}],13:[function(require,module,exports){
+/*global require,module*/
+"use strict";
+var CodeMirror = require("codemirror");
+require("codemirror/addon/edit/continuelist.js");
+require("./codemirror/tablist");
+require("codemirror/addon/display/fullscreen.js");
+require("codemirror/mode/markdown/markdown.js");
+require("codemirror/addon/mode/overlay.js");
+require("codemirror/mode/gfm/gfm.js");
+require("codemirror/mode/xml/xml.js");
+require("spell-checker");
+var marked = require("marked");
+
+
+var isMac = /Mac/.test(navigator.platform);
+
+var shortcuts = {
+ "Cmd-B": toggleBold,
+ "Cmd-I": toggleItalic,
+ "Cmd-K": drawLink,
+ "Cmd-H": toggleHeadingSmaller,
+ "Shift-Cmd-H": toggleHeadingBigger,
+ "Cmd-Alt-I": drawImage,
+ "Cmd-'": toggleBlockquote,
+ "Cmd-Alt-L": toggleOrderedList,
+ "Cmd-L": toggleUnorderedList,
+ "Cmd-Alt-C": toggleCodeBlock,
+ "Cmd-P": togglePreview
+};
+
+
+/**
+ * Fix shortcut. Mac use Command, others use Ctrl.
+ */
+function fixShortcut(name) {
+ if(isMac) {
+ name = name.replace("Ctrl", "Cmd");
+ } else {
+ name = name.replace("Cmd", "Ctrl");
+ }
+ return name;
+}
+
+
+/**
+ * Create icon element for toolbar.
+ */
+function createIcon(options, enableTooltips) {
+ options = options || {};
+ var el = document.createElement("a");
+ enableTooltips = (enableTooltips == undefined) ? true : enableTooltips;
+
+ if(options.title && enableTooltips) {
+ el.title = options.title;
+
+ if(isMac) {
+ el.title = el.title.replace("Ctrl", "⌘");
+ el.title = el.title.replace("Alt", "⌥");
+ }
+ }
+
+ el.className = options.className;
+ return el;
+}
+
+function createSep() {
+ var el = document.createElement("i");
+ el.className = "separator";
+ el.innerHTML = "|";
+ return el;
+}
+
+
+/**
+ * The state of CodeMirror at the given position.
+ */
+function getState(cm, pos) {
+ pos = pos || cm.getCursor("start");
+ var stat = cm.getTokenAt(pos);
+ if(!stat.type) return {};
+
+ var types = stat.type.split(" ");
+
+ var ret = {},
+ data, text;
+ for(var i = 0; i < types.length; i++) {
+ data = types[i];
+ if(data === "strong") {
+ ret.bold = true;
+ } else if(data === "variable-2") {
+ text = cm.getLine(pos.line);
+ if(/^\s*\d+\.\s/.test(text)) {
+ ret["ordered-list"] = true;
+ } else {
+ ret["unordered-list"] = true;
+ }
+ } else if(data === "atom") {
+ ret.quote = true;
+ } else if(data === "em") {
+ ret.italic = true;
+ } else if(data === "quote") {
+ ret.quote = true;
+ } else if(data === "strikethrough") {
+ ret.strikethrough = true;
+ } else if(data === "comment") {
+ ret.code = true;
+ }
+ }
+ return ret;
+}
+
+
+// Saved overflow setting
+var saved_overflow = "";
+
+/**
+ * Toggle full screen of the editor.
+ */
+function toggleFullScreen(editor) {
+ // Set fullscreen
+ var cm = editor.codemirror;
+ cm.setOption("fullScreen", !cm.getOption("fullScreen"));
+
+
+ // Prevent scrolling on body during fullscreen active
+ if(cm.getOption("fullScreen")) {
+ saved_overflow = document.body.style.overflow;
+ document.body.style.overflow = "hidden";
+ } else {
+ document.body.style.overflow = saved_overflow;
+ }
+
+
+ // Update toolbar class
+ var wrap = cm.getWrapperElement();
+
+ if(!/fullscreen/.test(wrap.previousSibling.className)) {
+ wrap.previousSibling.className += " fullscreen";
+ } else {
+ wrap.previousSibling.className = wrap.previousSibling.className.replace(/\s*fullscreen\b/, "");
+ }
+
+
+ // Update toolbar button
+ var toolbarButton = editor.toolbarElements.fullscreen;
+
+ if(!/active/.test(toolbarButton.className)) {
+ toolbarButton.className += " active";
+ } else {
+ toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
+ }
+
+
+ // Hide side by side if needed
+ var sidebyside = cm.getWrapperElement().nextSibling;
+ if(/editor-preview-active-side/.test(sidebyside.className))
+ toggleSideBySide(editor);
+}
+
+
+/**
+ * Action for toggling bold.
+ */
+function toggleBold(editor) {
+ _toggleBlock(editor, "bold", "**");
+}
+
+
+/**
+ * Action for toggling italic.
+ */
+function toggleItalic(editor) {
+ _toggleBlock(editor, "italic", "*");
+}
+
+
+/**
+ * Action for toggling strikethrough.
+ */
+function toggleStrikethrough(editor) {
+ _toggleBlock(editor, "strikethrough", "~~");
+}
+
+/**
+ * Action for toggling code block.
+ */
+function toggleCodeBlock(editor) {
+ _toggleBlock(editor, "code", "```\r\n", "\r\n```");
+}
+
+/**
+ * Action for toggling blockquote.
+ */
+function toggleBlockquote(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "quote");
+}
+
+/**
+ * Action for toggling heading size: normal -> h1 -> h2 -> h3 -> h4 -> h5 -> h6 -> normal
+ */
+function toggleHeadingSmaller(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, "smaller");
+}
+
+/**
+ * Action for toggling heading size: normal -> h6 -> h5 -> h4 -> h3 -> h2 -> h1 -> normal
+ */
+function toggleHeadingBigger(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, "bigger");
+}
+
+/**
+ * Action for toggling heading size 1
+ */
+function toggleHeading1(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 1);
+}
+
+/**
+ * Action for toggling heading size 2
+ */
+function toggleHeading2(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 2);
+}
+
+/**
+ * Action for toggling heading size 3
+ */
+function toggleHeading3(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 3);
+}
+
+
+/**
+ * Action for toggling ul.
+ */
+function toggleUnorderedList(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "unordered-list");
+}
+
+
+/**
+ * Action for toggling ol.
+ */
+function toggleOrderedList(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "ordered-list");
+}
+
+
+/**
+ * Action for drawing a link.
+ */
+function drawLink(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ _replaceSelection(cm, stat.link, "[", "](http://)");
+}
+
+
+/**
+ * Action for drawing an img.
+ */
+function drawImage(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ _replaceSelection(cm, stat.image, "![](http://", ")");
+}
+
+
+/**
+ * Action for drawing a horizontal rule.
+ */
+function drawHorizontalRule(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ _replaceSelection(cm, stat.image, "", "\n\n-----\n\n");
+}
+
+
+/**
+ * Undo action.
+ */
+function undo(editor) {
+ var cm = editor.codemirror;
+ cm.undo();
+ cm.focus();
+}
+
+
+/**
+ * Redo action.
+ */
+function redo(editor) {
+ var cm = editor.codemirror;
+ cm.redo();
+ cm.focus();
+}
+
+
+/**
+ * Toggle side by side preview
+ */
+function toggleSideBySide(editor) {
+ var cm = editor.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+ var toolbarButton = editor.toolbarElements["side-by-side"];
+
+ if(/editor-preview-active-side/.test(preview.className)) {
+ preview.className = preview.className.replace(
+ /\s*editor-preview-active-side\s*/g, ""
+ );
+ toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
+ wrapper.className = wrapper.className.replace(/\s*CodeMirror-sided\s*/g, " ");
+ } else {
+ /* When the preview button is clicked for the first time,
+ * give some time for the transition from editor.css to fire and the view to slide from right to left,
+ * instead of just appearing.
+ */
+ setTimeout(function() {
+ if(!cm.getOption("fullScreen"))
+ toggleFullScreen(editor);
+ preview.className += " editor-preview-active-side";
+ }, 1);
+ toolbarButton.className += " active";
+ wrapper.className += " CodeMirror-sided";
+ }
+
+ // Hide normal preview if active
+ var previewNormal = wrapper.lastChild;
+ if(/editor-preview-active/.test(previewNormal.className)) {
+ previewNormal.className = previewNormal.className.replace(
+ /\s*editor-preview-active\s*/g, ""
+ );
+ var toolbar = editor.toolbarElements.preview;
+ var toolbar_div = wrapper.previousSibling;
+ toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
+ toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
+ }
+
+ // Start preview with the current text
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+
+ // Updates preview
+ cm.on("update", function() {
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+ });
+}
+
+
+/**
+ * Preview action.
+ */
+function togglePreview(editor) {
+ var cm = editor.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var toolbar_div = wrapper.previousSibling;
+ var toolbar = editor.toolbarElements.preview;
+ var preview = wrapper.lastChild;
+ if(!preview || !/editor-preview/.test(preview.className)) {
+ preview = document.createElement("div");
+ preview.className = "editor-preview";
+ wrapper.appendChild(preview);
+ }
+ if(/editor-preview-active/.test(preview.className)) {
+ preview.className = preview.className.replace(
+ /\s*editor-preview-active\s*/g, ""
+ );
+ toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
+ toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
+ } else {
+ /* When the preview button is clicked for the first time,
+ * give some time for the transition from editor.css to fire and the view to slide from right to left,
+ * instead of just appearing.
+ */
+ setTimeout(function() {
+ preview.className += " editor-preview-active";
+ }, 1);
+ toolbar.className += " active";
+ toolbar_div.className += " disabled-for-preview";
+ }
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+
+ // Turn off side by side if needed
+ var sidebyside = cm.getWrapperElement().nextSibling;
+ if(/editor-preview-active-side/.test(sidebyside.className))
+ toggleSideBySide(editor);
+}
+
+function _replaceSelection(cm, active, start, end) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var text;
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ if(active) {
+ text = cm.getLine(startPoint.line);
+ start = text.slice(0, startPoint.ch);
+ end = text.slice(startPoint.ch);
+ cm.replaceRange(start + end, {
+ line: startPoint.line,
+ ch: 0
+ });
+ } else {
+ text = cm.getSelection();
+ cm.replaceSelection(start + text + end);
+
+ startPoint.ch += start.length;
+ if(startPoint !== endPoint) {
+ endPoint.ch += start.length;
+ }
+ }
+ cm.setSelection(startPoint, endPoint);
+ cm.focus();
+}
+
+
+function _toggleHeading(cm, direction, size) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ for(var i = startPoint.line; i <= endPoint.line; i++) {
+ (function(i) {
+ var text = cm.getLine(i);
+ var currHeadingLevel = text.search(/[^#]/);
+
+ if(direction !== undefined) {
+ if(currHeadingLevel <= 0) {
+ if(direction == "bigger") {
+ text = "###### " + text;
+ } else {
+ text = "# " + text;
+ }
+ } else if(currHeadingLevel == 6 && direction == "smaller") {
+ text = text.substr(7);
+ } else if(currHeadingLevel == 1 && direction == "bigger") {
+ text = text.substr(2);
+ } else {
+ if(direction == "bigger") {
+ text = text.substr(1);
+ } else {
+ text = "#" + text;
+ }
+ }
+ } else {
+ if(size == 1) {
+ if(currHeadingLevel <= 0) {
+ text = "# " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "# " + text.substr(currHeadingLevel + 1);
+ }
+ } else if(size == 2) {
+ if(currHeadingLevel <= 0) {
+ text = "## " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "## " + text.substr(currHeadingLevel + 1);
+ }
+ } else {
+ if(currHeadingLevel <= 0) {
+ text = "### " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "### " + text.substr(currHeadingLevel + 1);
+ }
+ }
+ }
+
+ cm.replaceRange(text, {
+ line: i,
+ ch: 0
+ }, {
+ line: i,
+ ch: 99999999999999
+ });
+ })(i);
+ }
+ cm.focus();
+}
+
+
+function _toggleLine(cm, name) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var stat = getState(cm);
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ var repl = {
+ "quote": /^(\s*)\>\s+/,
+ "unordered-list": /^(\s*)(\*|\-|\+)\s+/,
+ "ordered-list": /^(\s*)\d+\.\s+/
+ };
+ var map = {
+ "quote": "> ",
+ "unordered-list": "* ",
+ "ordered-list": "1. "
+ };
+ for(var i = startPoint.line; i <= endPoint.line; i++) {
+ (function(i) {
+ var text = cm.getLine(i);
+ if(stat[name]) {
+ text = text.replace(repl[name], "$1");
+ } else {
+ text = map[name] + text;
+ }
+ cm.replaceRange(text, {
+ line: i,
+ ch: 0
+ }, {
+ line: i,
+ ch: 99999999999999
+ });
+ })(i);
+ }
+ cm.focus();
+}
+
+function _toggleBlock(editor, type, start_chars, end_chars) {
+ if(/editor-preview-active/.test(editor.codemirror.getWrapperElement().lastChild.className))
+ return;
+
+ end_chars = (typeof end_chars === "undefined") ? start_chars : end_chars;
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+
+ var text;
+ var start = start_chars;
+ var end = end_chars;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+
+ if(stat[type]) {
+ text = cm.getLine(startPoint.line);
+ start = text.slice(0, startPoint.ch);
+ end = text.slice(startPoint.ch);
+ if(type == "bold") {
+ start = start.replace(/(\*\*|__)(?![\s\S]*(\*\*|__))/, "");
+ end = end.replace(/(\*\*|__)/, "");
+ } else if(type == "italic") {
+ start = start.replace(/(\*|_)(?![\s\S]*(\*|_))/, "");
+ end = end.replace(/(\*|_)/, "");
+ } else if(type == "strikethrough") {
+ start = start.replace(/(\*\*|~~)(?![\s\S]*(\*\*|~~))/, "");
+ end = end.replace(/(\*\*|~~)/, "");
+ }
+ cm.replaceRange(start + end, {
+ line: startPoint.line,
+ ch: 0
+ }, {
+ line: startPoint.line,
+ ch: 99999999999999
+ });
+
+ if(type == "bold" || type == "strikethrough") {
+ startPoint.ch -= 2;
+ if(startPoint !== endPoint) {
+ endPoint.ch -= 2;
+ }
+ } else if(type == "italic") {
+ startPoint.ch -= 1;
+ if(startPoint !== endPoint) {
+ endPoint.ch -= 1;
+ }
+ }
+ } else {
+ text = cm.getSelection();
+ if(type == "bold") {
+ text = text.split("**").join("");
+ text = text.split("__").join("");
+ } else if(type == "italic") {
+ text = text.split("*").join("");
+ text = text.split("_").join("");
+ } else if(type == "strikethrough") {
+ text = text.split("~~").join("");
+ }
+ cm.replaceSelection(start + text + end);
+
+ startPoint.ch += start_chars.length;
+ endPoint.ch = startPoint.ch + text.length;
+ }
+
+ cm.setSelection(startPoint, endPoint);
+ cm.focus();
+}
+
+
+/* The right word count in respect for CJK. */
+function wordCount(data) {
+ var pattern = /[a-zA-Z0-9_\u0392-\u03c9]+|[\u4E00-\u9FFF\u3400-\u4dbf\uf900-\ufaff\u3040-\u309f\uac00-\ud7af]+/g;
+ var m = data.match(pattern);
+ var count = 0;
+ if(m === null) return count;
+ for(var i = 0; i < m.length; i++) {
+ if(m[i].charCodeAt(0) >= 0x4E00) {
+ count += m[i].length;
+ } else {
+ count += 1;
+ }
+ }
+ return count;
+}
+
+
+var toolbarBuiltInButtons = {
+ "bold": {
+ name: "bold",
+ action: toggleBold,
+ className: "fa fa-bold",
+ title: "Bold (Ctrl+B)"
+ },
+ "italic": {
+ name: "italic",
+ action: toggleItalic,
+ className: "fa fa-italic",
+ title: "Italic (Ctrl+I)"
+ },
+ "strikethrough": {
+ name: "strikethrough",
+ action: toggleStrikethrough,
+ className: "fa fa-strikethrough",
+ title: "Strikethrough"
+ },
+ "heading": {
+ name: "heading",
+ action: toggleHeadingSmaller,
+ className: "fa fa-header",
+ title: "Heading (Ctrl+H)"
+ },
+ "heading-smaller": {
+ name: "heading-smaller",
+ action: toggleHeadingSmaller,
+ className: "fa fa-header fa-header-x fa-header-smaller",
+ title: "Smaller Heading (Ctrl+H)"
+ },
+ "heading-bigger": {
+ name: "heading-bigger",
+ action: toggleHeadingBigger,
+ className: "fa fa-header fa-header-x fa-header-bigger",
+ title: "Bigger Heading (Shift+Ctrl+H)"
+ },
+ "heading-1": {
+ name: "heading-1",
+ action: toggleHeading1,
+ className: "fa fa-header fa-header-x fa-header-1",
+ title: "Big Heading"
+ },
+ "heading-2": {
+ name: "heading-2",
+ action: toggleHeading2,
+ className: "fa fa-header fa-header-x fa-header-2",
+ title: "Medium Heading"
+ },
+ "heading-3": {
+ name: "heading-3",
+ action: toggleHeading3,
+ className: "fa fa-header fa-header-x fa-header-3",
+ title: "Small Heading"
+ },
+ "code": {
+ name: "code",
+ action: toggleCodeBlock,
+ className: "fa fa-code",
+ title: "Code (Ctrl+Alt+C)"
+ },
+ "quote": {
+ name: "quote",
+ action: toggleBlockquote,
+ className: "fa fa-quote-left",
+ title: "Quote (Ctrl+')"
+ },
+ "unordered-list": {
+ name: "unordered-list",
+ action: toggleUnorderedList,
+ className: "fa fa-list-ul",
+ title: "Generic List (Ctrl+L)"
+ },
+ "ordered-list": {
+ name: "ordered-list",
+ action: toggleOrderedList,
+ className: "fa fa-list-ol",
+ title: "Numbered List (Ctrl+Alt+L)"
+ },
+ "link": {
+ name: "link",
+ action: drawLink,
+ className: "fa fa-link",
+ title: "Create Link (Ctrl+K)"
+ },
+ "image": {
+ name: "image",
+ action: drawImage,
+ className: "fa fa-picture-o",
+ title: "Insert Image (Ctrl+Alt+I)"
+ },
+ "horizontal-rule": {
+ name: "horizontal-rule",
+ action: drawHorizontalRule,
+ className: "fa fa-minus",
+ title: "Insert Horizontal Line"
+ },
+ "preview": {
+ name: "preview",
+ action: togglePreview,
+ className: "fa fa-eye no-disable",
+ title: "Toggle Preview (Ctrl+P)"
+ },
+ "side-by-side": {
+ name: "side-by-side",
+ action: toggleSideBySide,
+ className: "fa fa-columns no-disable no-mobile",
+ title: "Toggle Side by Side (F9)"
+ },
+ "fullscreen": {
+ name: "fullscreen",
+ action: toggleFullScreen,
+ className: "fa fa-arrows-alt no-disable no-mobile",
+ title: "Toggle Fullscreen (F11)"
+ },
+ "guide": {
+ name: "guide",
+ action: "http://nextstepwebs.github.io/simplemde-markdown-editor/markdown-guide",
+ className: "fa fa-question-circle",
+ title: "Markdown Guide"
+ }
+};
+
+
+/**
+ * Interface of SimpleMDE.
+ */
+function SimpleMDE(options) {
+ // Handle options parameter
+ options = options || {};
+
+
+ // Used later to refer to it"s parent
+ options.parent = this;
+
+
+ // Check if Font Awesome needs to be auto downloaded
+ var autoDownloadFA = true;
+
+ if(options.autoDownloadFontAwesome === false) {
+ autoDownloadFA = false;
+ }
+
+ if(options.autoDownloadFontAwesome !== true) {
+ var styleSheets = document.styleSheets;
+ for(var i = 0; i < styleSheets.length; i++) {
+ if(!styleSheets[i].href)
+ continue;
+
+ if(styleSheets[i].href.indexOf("//maxcdn.bootstrapcdn.com/font-awesome/") > -1) {
+ autoDownloadFA = false;
+ }
+ }
+ }
+
+ if(autoDownloadFA) {
+ var link = document.createElement("link");
+ link.rel = "stylesheet";
+ link.href = "https://maxcdn.bootstrapcdn.com/font-awesome/latest/css/font-awesome.min.css";
+ document.getElementsByTagName("head")[0].appendChild(link);
+ }
+
+
+ // Find the textarea to use
+ if(options.element) {
+ this.element = options.element;
+ } else if(options.element === null) {
+ // This means that the element option was specified, but no element was found
+ console.log("SimpleMDE: Error. No element was found.");
+ return;
+ }
+
+
+ // Handle toolbar and status bar
+ if(options.toolbar !== false)
+ options.toolbar = options.toolbar || SimpleMDE.toolbar;
+
+ if(!options.hasOwnProperty("status")) {
+ options.status = ["autosave", "lines", "words", "cursor"];
+ }
+
+
+ // Add default preview rendering function
+ if(!options.previewRender) {
+ options.previewRender = function(plainText) {
+ // Note: "this" refers to the options object
+ return this.parent.markdown(plainText);
+ };
+ }
+
+
+ // Set default options for parsing config
+ options.parsingConfig = options.parsingConfig || {};
+
+
+ // Update this options
+ this.options = options;
+
+
+ // Auto render
+ this.render();
+
+
+ // The codemirror component is only available after rendering
+ // so, the setter for the initialValue can only run after
+ // the element has been rendered
+ if(options.initialValue) {
+ this.value(options.initialValue);
+ }
+}
+
+/**
+ * Default toolbar elements.
+ */
+SimpleMDE.toolbar = ["bold", "italic", "heading", "|", "quote", "unordered-list", "ordered-list", "|", "link", "image", "|", "preview", "side-by-side", "fullscreen", "guide"];
+
+/**
+ * Default markdown render.
+ */
+SimpleMDE.prototype.markdown = function(text) {
+ if(marked) {
+ // Initialize
+ var markedOptions = {};
+
+
+ // Update options
+ if(this.options && this.options.renderingConfig && this.options.renderingConfig.singleLineBreaks !== false) {
+ markedOptions.breaks = true;
+ }
+
+ if(this.options && this.options.renderingConfig && this.options.renderingConfig.codeSyntaxHighlighting === true && window.hljs) {
+ markedOptions.highlight = function(code) {
+ return window.hljs.highlightAuto(code).value;
+ };
+ }
+
+
+ // Set options
+ marked.setOptions(markedOptions);
+
+
+ // Return
+ return marked(text);
+ }
+};
+
+/**
+ * Render editor to the given element.
+ */
+SimpleMDE.prototype.render = function(el) {
+ if(!el) {
+ el = this.element || document.getElementsByTagName("textarea")[0];
+ }
+
+ if(this._rendered && this._rendered === el) {
+ // Already rendered.
+ return;
+ }
+
+ this.element = el;
+ var options = this.options;
+
+ var self = this;
+ var keyMaps = {};
+
+ for(var key in shortcuts) {
+ (function(key) {
+ keyMaps[fixShortcut(key)] = function() {
+ shortcuts[key](self);
+ };
+ })(key);
+ }
+
+ keyMaps["Enter"] = "newlineAndIndentContinueMarkdownList";
+ keyMaps["Tab"] = "tabAndIndentMarkdownList";
+ keyMaps["Shift-Tab"] = "shiftTabAndUnindentMarkdownList";
+ keyMaps["F11"] = function() {
+ toggleFullScreen(self);
+ };
+ keyMaps["F9"] = function() {
+ toggleSideBySide(self);
+ };
+ keyMaps["Esc"] = function(cm) {
+ if(cm.getOption("fullScreen")) toggleFullScreen(self);
+ };
+
+ var mode, backdrop;
+ if(options.spellChecker !== false) {
+ mode = "spell-checker";
+ backdrop = options.parsingConfig;
+ backdrop.name = "gfm";
+ backdrop.gitHubSpice = false;
+ } else {
+ mode = options.parsingConfig;
+ mode.name = "gfm";
+ mode.gitHubSpice = false;
+ }
+
+ this.codemirror = CodeMirror.fromTextArea(el, {
+ mode: mode,
+ backdrop: backdrop,
+ theme: "paper",
+ tabSize: (options.tabSize != undefined) ? options.tabSize : 2,
+ indentUnit: (options.tabSize != undefined) ? options.tabSize : 2,
+ indentWithTabs: (options.indentWithTabs === false) ? false : true,
+ lineNumbers: false,
+ autofocus: (options.autofocus === true) ? true : false,
+ extraKeys: keyMaps,
+ lineWrapping: (options.lineWrapping === false) ? false : true,
+ allowDropFileTypes: ["text/plain"]
+ });
+
+ if(options.toolbar !== false) {
+ this.createToolbar();
+ }
+ if(options.status !== false) {
+ this.createStatusbar();
+ }
+ if(options.autosave != undefined && options.autosave.enabled === true) {
+ this.autosave();
+ }
+
+ this.createSideBySide();
+
+ this._rendered = this.element;
+};
+
+SimpleMDE.prototype.autosave = function() {
+ var content = this.value();
+ var simplemde = this;
+
+ if(this.options.autosave.unique_id == undefined || this.options.autosave.unique_id == "") {
+ console.log("SimpleMDE: You must set a unique_id to use the autosave feature");
+ return;
+ }
+
+ if(simplemde.element.form != null && simplemde.element.form != undefined) {
+ simplemde.element.form.addEventListener("submit", function() {
+ localStorage.setItem(simplemde.options.autosave.unique_id, "");
+ });
+ }
+
+ if(this.options.autosave.loaded !== true) {
+ if(localStorage.getItem(this.options.autosave.unique_id) != null)
+ this.codemirror.setValue(localStorage.getItem(this.options.autosave.unique_id));
+
+ this.options.autosave.loaded = true;
+ }
+
+ if(localStorage) {
+ localStorage.setItem(this.options.autosave.unique_id, content);
+ }
+
+ var el = document.getElementById("autosaved");
+ if(el != null && el != undefined && el != "") {
+ var d = new Date();
+ var hh = d.getHours();
+ var m = d.getMinutes();
+ var dd = "am";
+ var h = hh;
+ if(h >= 12) {
+ h = hh - 12;
+ dd = "pm";
+ }
+ if(h == 0) {
+ h = 12;
+ }
+ m = m < 10 ? "0" + m : m;
+
+ el.innerHTML = "Autosaved: " + h + ":" + m + " " + dd;
+ }
+
+ setTimeout(function() {
+ simplemde.autosave();
+ }, this.options.autosave.delay || 10000);
+};
+
+SimpleMDE.prototype.createSideBySide = function() {
+ var cm = this.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+
+ if(!preview || !/editor-preview-side/.test(preview.className)) {
+ preview = document.createElement("div");
+ preview.className = "editor-preview-side";
+ wrapper.parentNode.insertBefore(preview, wrapper.nextSibling);
+ }
+
+ // Syncs scroll editor -> preview
+ var cScroll = false;
+ var pScroll = false;
+ cm.on("scroll", function(v) {
+ if(cScroll) {
+ cScroll = false;
+ return;
+ }
+ pScroll = true;
+ var height = v.getScrollInfo().height - v.getScrollInfo().clientHeight;
+ var ratio = parseFloat(v.getScrollInfo().top) / height;
+ var move = (preview.scrollHeight - preview.clientHeight) * ratio;
+ preview.scrollTop = move;
+ });
+
+ // Syncs scroll preview -> editor
+ preview.onscroll = function() {
+ if(pScroll) {
+ pScroll = false;
+ return;
+ }
+ cScroll = true;
+ var height = preview.scrollHeight - preview.clientHeight;
+ var ratio = parseFloat(preview.scrollTop) / height;
+ var move = (cm.getScrollInfo().height - cm.getScrollInfo().clientHeight) * ratio;
+ cm.scrollTo(0, move);
+ };
+ return true;
+};
+
+SimpleMDE.prototype.createToolbar = function(items) {
+ items = items || this.options.toolbar;
+
+ if(!items || items.length === 0) {
+ return;
+ }
+ var i;
+ for(i = 0; i < items.length; i++) {
+ if(toolbarBuiltInButtons[items[i]] != undefined) {
+ items[i] = toolbarBuiltInButtons[items[i]];
+ }
+ }
+
+ var bar = document.createElement("div");
+ bar.className = "editor-toolbar";
+
+ var self = this;
+
+ var toolbar_data = {};
+ self.toolbar = items;
+
+ for(i = 0; i < items.length; i++) {
+ if(items[i].name == "guide" && self.options.toolbarGuideIcon === false)
+ continue;
+
+ if(self.options.hideIcons && self.options.hideIcons.indexOf(items[i].name) != -1)
+ continue;
+
+ (function(item) {
+ var el;
+ if(item === "|") {
+ el = createSep();
+ } else {
+ el = createIcon(item, self.options.toolbarTips);
+ }
+
+ // bind events, special for info
+ if(item.action) {
+ if(typeof item.action === "function") {
+ el.onclick = function() {
+ item.action(self);
+ };
+ } else if(typeof item.action === "string") {
+ el.href = item.action;
+ el.target = "_blank";
+ }
+ }
+ toolbar_data[item.name || item] = el;
+ bar.appendChild(el);
+ })(items[i]);
+ }
+
+ self.toolbarElements = toolbar_data;
+
+ var cm = this.codemirror;
+ cm.on("cursorActivity", function() {
+ var stat = getState(cm);
+
+ for(var key in toolbar_data) {
+ (function(key) {
+ var el = toolbar_data[key];
+ if(stat[key]) {
+ el.className += " active";
+ } else if(key != "fullscreen" && key != "side-by-side") {
+ el.className = el.className.replace(/\s*active\s*/g, "");
+ }
+ })(key);
+ }
+ });
+
+ var cmWrapper = cm.getWrapperElement();
+ cmWrapper.parentNode.insertBefore(bar, cmWrapper);
+ return bar;
+};
+
+SimpleMDE.prototype.createStatusbar = function(status) {
+ status = status || this.options.status;
+ var options = this.options;
+
+ if(!status || status.length === 0) return;
+
+ var bar = document.createElement("div");
+ bar.className = "editor-statusbar";
+
+ var pos, cm = this.codemirror;
+ for(var i = 0; i < status.length; i++) {
+ (function(name) {
+ var el = document.createElement("span");
+ el.className = name;
+ if(name === "words") {
+ el.innerHTML = "0";
+ cm.on("update", function() {
+ el.innerHTML = wordCount(cm.getValue());
+ });
+ } else if(name === "lines") {
+ el.innerHTML = "0";
+ cm.on("update", function() {
+ el.innerHTML = cm.lineCount();
+ });
+ } else if(name === "cursor") {
+ el.innerHTML = "0:0";
+ cm.on("cursorActivity", function() {
+ pos = cm.getCursor();
+ el.innerHTML = pos.line + ":" + pos.ch;
+ });
+ } else if(name === "autosave") {
+ if(options.autosave != undefined && options.autosave.enabled === true) {
+ el.setAttribute("id", "autosaved");
+ }
+ }
+ bar.appendChild(el);
+ })(status[i]);
+ }
+
+ var cmWrapper = this.codemirror.getWrapperElement();
+ cmWrapper.parentNode.insertBefore(bar, cmWrapper.nextSibling);
+ return bar;
+};
+
+/**
+ * Get or set the text content.
+ */
+SimpleMDE.prototype.value = function(val) {
+ if(val === undefined) {
+ return this.codemirror.getValue();
+ } else {
+ this.codemirror.getDoc().setValue(val);
+ return this;
+ }
+};
+
+
+/**
+ * Bind static methods for exports.
+ */
+SimpleMDE.toggleBold = toggleBold;
+SimpleMDE.toggleItalic = toggleItalic;
+SimpleMDE.toggleStrikethrough = toggleStrikethrough;
+SimpleMDE.toggleBlockquote = toggleBlockquote;
+SimpleMDE.toggleHeadingSmaller = toggleHeadingSmaller;
+SimpleMDE.toggleHeadingBigger = toggleHeadingBigger;
+SimpleMDE.toggleHeading1 = toggleHeading1;
+SimpleMDE.toggleHeading2 = toggleHeading2;
+SimpleMDE.toggleHeading3 = toggleHeading3;
+SimpleMDE.toggleCodeBlock = toggleCodeBlock;
+SimpleMDE.toggleUnorderedList = toggleUnorderedList;
+SimpleMDE.toggleOrderedList = toggleOrderedList;
+SimpleMDE.drawLink = drawLink;
+SimpleMDE.drawImage = drawImage;
+SimpleMDE.drawHorizontalRule = drawHorizontalRule;
+SimpleMDE.undo = undo;
+SimpleMDE.redo = redo;
+SimpleMDE.togglePreview = togglePreview;
+SimpleMDE.toggleSideBySide = toggleSideBySide;
+SimpleMDE.toggleFullScreen = toggleFullScreen;
+
+/**
+ * Bind instance methods for exports.
+ */
+SimpleMDE.prototype.toggleBold = function() {
+ toggleBold(this);
+};
+SimpleMDE.prototype.toggleItalic = function() {
+ toggleItalic(this);
+};
+SimpleMDE.prototype.toggleStrikethrough = function() {
+ toggleStrikethrough(this);
+};
+SimpleMDE.prototype.toggleBlockquote = function() {
+ toggleBlockquote(this);
+};
+SimpleMDE.prototype.toggleHeadingSmaller = function() {
+ toggleHeadingSmaller(this);
+};
+SimpleMDE.prototype.toggleHeadingBigger = function() {
+ toggleHeadingBigger(this);
+};
+SimpleMDE.prototype.toggleHeading1 = function() {
+ toggleHeading1(this);
+};
+SimpleMDE.prototype.toggleHeading2 = function() {
+ toggleHeading2(this);
+};
+SimpleMDE.prototype.toggleHeading3 = function() {
+ toggleHeading3(this);
+};
+SimpleMDE.prototype.toggleCodeBlock = function() {
+ toggleCodeBlock(this);
+};
+SimpleMDE.prototype.toggleUnorderedList = function() {
+ toggleUnorderedList(this);
+};
+SimpleMDE.prototype.toggleOrderedList = function() {
+ toggleOrderedList(this);
+};
+SimpleMDE.prototype.drawLink = function() {
+ drawLink(this);
+};
+SimpleMDE.prototype.drawImage = function() {
+ drawImage(this);
+};
+SimpleMDE.prototype.drawHorizontalRule = function() {
+ drawHorizontalRule(this);
+};
+SimpleMDE.prototype.undo = function() {
+ undo(this);
+};
+SimpleMDE.prototype.redo = function() {
+ redo(this);
+};
+SimpleMDE.prototype.togglePreview = function() {
+ togglePreview(this);
+};
+SimpleMDE.prototype.toggleSideBySide = function() {
+ toggleSideBySide(this);
+};
+SimpleMDE.prototype.toggleFullScreen = function() {
+ toggleFullScreen(this);
+};
+module.exports = SimpleMDE;
+
+},{"./codemirror/tablist":12,"codemirror":6,"codemirror/addon/display/fullscreen.js":3,"codemirror/addon/edit/continuelist.js":4,"codemirror/addon/mode/overlay.js":5,"codemirror/mode/gfm/gfm.js":7,"codemirror/mode/markdown/markdown.js":8,"codemirror/mode/xml/xml.js":10,"marked":11,"spell-checker":1}]},{},[13])(13)
+});
+//# 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e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require==\"function\"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error(\"Cannot find module '\"+o+\"'\");throw f.code=\"MODULE_NOT_FOUND\",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require==\"function\"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})","\n; Typo = global.Typo = require(\"C:\\\\phantomx\\\\projects\\\\simplemde-markdown-editor\\\\node_modules\\\\codemirror-spell-checker\\\\src\\\\js\\\\typo.js\");\nCodeMirror = global.CodeMirror = require(\"codemirror\");\n; var __browserify_shim_require__=require;(function browserifyShim(module, define, require) {\n// Initialize data globally to reduce memory consumption\r\nvar num_loaded = 0;\r\nvar aff_loading = false;\r\nvar dic_loading = false;\r\nvar aff_data = \"\";\r\nvar dic_data = \"\";\r\nvar typo;\r\n\r\n\r\nCodeMirror.defineMode(\"spell-checker\", function(config, parserConfig) {\r\n\t// Load AFF/DIC data\r\n\tif(!aff_loading){\r\n\t\taff_loading = true;\r\n\t\tvar xhr_aff = new XMLHttpRequest();\r\n\t\txhr_aff.open(\"GET\", \"https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.aff\", true);\r\n\t\txhr_aff.onload = function (e) {\r\n\t\t\tif (xhr_aff.readyState === 4 && xhr_aff.status === 200) {\r\n\t\t\t\taff_data = xhr_aff.responseText;\r\n\t\t\t\tnum_loaded++;\r\n\t\t\t\t\r\n\t\t\t\tif(num_loaded == 2){\r\n\t\t\t\t\ttypo = new Typo(\"en_US\", aff_data, dic_data, {\r\n\t\t\t\t\t\tplatform: 'any'\r\n\t\t\t\t\t});\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t};\r\n\t\txhr_aff.send(null);\r\n\t}\r\n\t\r\n\tif(!dic_loading){\r\n\t\tdic_loading = true;\r\n\t\tvar xhr_dic = new XMLHttpRequest();\r\n\t\txhr_dic.open(\"GET\", \"https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.dic\", true);\r\n\t\txhr_dic.onload = function (e) {\r\n\t\t\tif (xhr_dic.readyState === 4 && xhr_dic.status === 200) {\r\n\t\t\t\tdic_data = xhr_dic.responseText;\r\n\t\t\t\tnum_loaded++;\r\n\t\t\t\t\r\n\t\t\t\tif(num_loaded == 2){\r\n\t\t\t\t\ttypo = new Typo(\"en_US\", aff_data, dic_data, {\r\n\t\t\t\t\t\tplatform: 'any'\r\n\t\t\t\t\t});\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t};\r\n\t\txhr_dic.send(null);\r\n\t}\r\n\r\n\t\r\n\t\r\n\t// Define what separates a word\r\n\tvar rx_word = \"!\\\"#$%&()*+,-./:;<=>?@[\\\\]^_`{|}~ \";\r\n\t\r\n\t\r\n\t// Create the overlay and such\r\n\tvar overlay = {\r\n\t\ttoken: function(stream, state) {\r\n\t\t\tvar ch = stream.peek();\r\n\t\t\tvar word = \"\";\r\n\r\n\t\t\tif(rx_word.includes(ch)) {\r\n\t\t\t\tstream.next();\r\n\t\t\t\treturn null;\r\n\t\t\t}\r\n\r\n\t\t\twhile((ch = stream.peek()) != null && !rx_word.includes(ch)) {\r\n\t\t\t\tword += ch;\r\n\t\t\t\tstream.next();\r\n\t\t\t}\r\n\r\n\t\t\tif(typo && !typo.check(word))\r\n\t\t\t\treturn \"spell-error\"; // CSS class: cm-spell-error\r\n\r\n\t\t\treturn null;\r\n\t\t}\r\n\t};\r\n\r\n\tvar mode = CodeMirror.getMode(\r\n\t\tconfig, config.backdrop || \"text/plain\"\r\n\t);\r\n\r\n\treturn CodeMirror.overlayMode(mode, overlay, true);\r\n});\r\n\r\n\r\n// Because some browsers don't support this functionality yet\r\nif(!String.prototype.includes) {\r\n\tString.prototype.includes = function() {'use strict';\r\n\t\treturn String.prototype.indexOf.apply(this, arguments) !== -1;\r\n\t};\r\n}\n}).call(global, module, undefined, undefined);\n","; var __browserify_shim_require__=require;(function browserifyShim(module, exports, require, define, browserify_shim__define__module__export__) {\n'use strict';\r\n\r\n/**\r\n * Typo is a JavaScript implementation of a spellchecker using hunspell-style\r\n * dictionaries.\r\n */\r\n\r\n/**\r\n * Typo constructor.\r\n *\r\n * @param {String} [dictionary] The locale code of the dictionary being used. e.g.,\r\n *                              \"en_US\". This is only used to auto-load dictionaries.\r\n * @param {String} [affData] The data from the dictionary's .aff file. If omitted\r\n *                           and the first argument is supplied, in \"chrome\" platform,\r\n *                           the .aff file will be loaded automatically from\r\n *                           lib/typo/dictionaries/[dictionary]/[dictionary].aff\r\n *                           In other platform, it will be loaded from\r\n *                           [setting.path]/dictionaries/[dictionary]/[dictionary].aff\r\n * @param {String} [wordsData] The data from the dictionary's .dic file. If omitted,\r\n *                           and the first argument is supplied, in \"chrome\" platform,\r\n *                           the .dic file will be loaded automatically from\r\n *                           lib/typo/dictionaries/[dictionary]/[dictionary].dic\r\n *                           In other platform, it will be loaded from\r\n *                           [setting.path]/dictionaries/[dictionary]/[dictionary].dic\r\n * @param {Object} [settings] Constructor settings. Available properties are:\r\n *                            {String} [platform]: \"chrome\" for Chrome Extension or other\r\n *                              value for the usual web.\r\n *                            {String} [dictionaryPath]: path to load dictionary from in non-chrome\r\n *                              environment.\r\n *                            {Object} [flags]: flag information.\r\n *\r\n *\r\n * @returns {Typo} A Typo object.\r\n */\r\n\r\nvar Typo = function (dictionary, affData, wordsData, settings) {\r\n\tsettings = settings || {};\r\n\t\r\n\t/** Determines the method used for auto-loading .aff and .dic files. **/\r\n\tthis.platform = settings.platform || \"chrome\";\r\n\t\r\n\tthis.dictionary = null;\r\n\t\r\n\tthis.rules = {};\r\n\tthis.dictionaryTable = {};\r\n\t\r\n\tthis.compoundRules = [];\r\n\tthis.compoundRuleCodes = {};\r\n\t\r\n\tthis.replacementTable = [];\r\n\t\r\n\tthis.flags = settings.flags || {};\r\n\t\r\n\tif (dictionary) {\r\n\t\tthis.dictionary = dictionary;\r\n\t\t\r\n\t\tif (this.platform == \"chrome\") {\r\n\t\t\tif (!affData) affData = this._readFile(chrome.extension.getURL(\"lib/typo/dictionaries/\" + dictionary + \"/\" + dictionary + \".aff\"));\r\n\t\t\tif (!wordsData) wordsData = this._readFile(chrome.extension.getURL(\"lib/typo/dictionaries/\" + dictionary + \"/\" + dictionary + \".dic\"));\r\n\t\t} else {\r\n\t\t\tvar path = settings.dictionaryPath || '';\r\n\t\t\t\r\n\t\t\tif (!affData) affData = this._readFile(path + \"/\" + dictionary + \"/\" + dictionary + \".aff\");\r\n\t\t\tif (!wordsData) wordsData = this._readFile(path + \"/\" + dictionary + \"/\" + dictionary + \".dic\");\r\n\t\t}\r\n\t\t\r\n\t\tthis.rules = this._parseAFF(affData);\r\n\t\t\r\n\t\t// Save the rule codes that are used in compound rules.\r\n\t\tthis.compoundRuleCodes = {};\r\n\t\t\r\n\t\tfor (var i = 0, _len = this.compoundRules.length; i < _len; i++) {\r\n\t\t\tvar rule = this.compoundRules[i];\r\n\t\t\t\r\n\t\t\tfor (var j = 0, _jlen = rule.length; j < _jlen; j++) {\r\n\t\t\t\tthis.compoundRuleCodes[rule[j]] = [];\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\t// If we add this ONLYINCOMPOUND flag to this.compoundRuleCodes, then _parseDIC\r\n\t\t// will do the work of saving the list of words that are compound-only.\r\n\t\tif (\"ONLYINCOMPOUND\" in this.flags) {\r\n\t\t\tthis.compoundRuleCodes[this.flags.ONLYINCOMPOUND] = [];\r\n\t\t}\r\n\t\t\r\n\t\tthis.dictionaryTable = this._parseDIC(wordsData);\r\n\t\t\r\n\t\t// Get rid of any codes from the compound rule codes that are never used\r\n\t\t// (or that were special regex characters).  Not especially necessary...\r\n\t\tfor (var i in this.compoundRuleCodes) {\r\n\t\t\tif (this.compoundRuleCodes[i].length == 0) {\r\n\t\t\t\tdelete this.compoundRuleCodes[i];\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\t// Build the full regular expressions for each compound rule.\r\n\t\t// I have a feeling (but no confirmation yet) that this method of\r\n\t\t// testing for compound words is probably slow.\r\n\t\tfor (var i = 0, _len = this.compoundRules.length; i < _len; i++) {\r\n\t\t\tvar ruleText = this.compoundRules[i];\r\n\t\t\t\r\n\t\t\tvar expressionText = \"\";\r\n\t\t\t\r\n\t\t\tfor (var j = 0, _jlen = ruleText.length; j < _jlen; j++) {\r\n\t\t\t\tvar character = ruleText[j];\r\n\t\t\t\t\r\n\t\t\t\tif (character in this.compoundRuleCodes) {\r\n\t\t\t\t\texpressionText += \"(\" + this.compoundRuleCodes[character].join(\"|\") + \")\";\r\n\t\t\t\t}\r\n\t\t\t\telse {\r\n\t\t\t\t\texpressionText += character;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tthis.compoundRules[i] = new RegExp(expressionText, \"i\");\r\n\t\t}\r\n\t}\r\n\t\r\n\treturn this;\r\n};\r\n\r\nTypo.prototype = {\r\n\t/**\r\n\t * Loads a Typo instance from a hash of all of the Typo properties.\r\n\t *\r\n\t * @param object obj A hash of Typo properties, probably gotten from a JSON.parse(JSON.stringify(typo_instance)).\r\n\t */\r\n\t\r\n\tload : function (obj) {\r\n\t\tfor (var i in obj) {\r\n\t\t\tthis[i] = obj[i];\r\n\t\t}\r\n\t\t\r\n\t\treturn this;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Read the contents of a file.\r\n\t *\r\n\t * @param {String} path The path (relative) to the file.\r\n\t * @param {String} [charset=\"ISO8859-1\"] The expected charset of the file\r\n\t * @returns string The file data.\r\n\t */\r\n\t\r\n\t_readFile : function (path, charset) {\r\n\t\tif (!charset) charset = \"ISO8859-1\";\r\n\t\t\r\n\t\tvar req = new XMLHttpRequest();\r\n\t\treq.open(\"GET\", path, false);\r\n\t\t\r\n\t\tif (req.overrideMimeType)\r\n\t\t\treq.overrideMimeType(\"text/plain; charset=\" + charset);\r\n\t\t\r\n\t\treq.send(null);\r\n\t\t\r\n\t\treturn req.responseText;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Parse the rules out from a .aff file.\r\n\t *\r\n\t * @param {String} data The contents of the affix file.\r\n\t * @returns object The rules from the file.\r\n\t */\r\n\t\r\n\t_parseAFF : function (data) {\r\n\t\tvar rules = {};\r\n\t\t\r\n\t\t// Remove comment lines\r\n\t\tdata = this._removeAffixComments(data);\r\n\t\t\r\n\t\tvar lines = data.split(\"\\n\");\r\n\t\t\r\n\t\tfor (var i = 0, _len = lines.length; i < _len; i++) {\r\n\t\t\tvar line = lines[i];\r\n\t\t\t\r\n\t\t\tvar definitionParts = line.split(/\\s+/);\r\n\t\t\t\r\n\t\t\tvar ruleType = definitionParts[0];\r\n\t\t\t\r\n\t\t\tif (ruleType == \"PFX\" || ruleType == \"SFX\") {\r\n\t\t\t\tvar ruleCode = definitionParts[1];\r\n\t\t\t\tvar combineable = definitionParts[2];\r\n\t\t\t\tvar numEntries = parseInt(definitionParts[3], 10);\r\n\t\t\t\t\r\n\t\t\t\tvar entries = [];\r\n\t\t\t\t\r\n\t\t\t\tfor (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {\r\n\t\t\t\t\tvar line = lines[j];\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar lineParts = line.split(/\\s+/);\r\n\t\t\t\t\tvar charactersToRemove = lineParts[2];\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar additionParts = lineParts[3].split(\"/\");\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar charactersToAdd = additionParts[0];\r\n\t\t\t\t\tif (charactersToAdd === \"0\") charactersToAdd = \"\";\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar continuationClasses = this.parseRuleCodes(additionParts[1]);\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar regexToMatch = lineParts[4];\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar entry = {};\r\n\t\t\t\t\tentry.add = charactersToAdd;\r\n\t\t\t\t\t\r\n\t\t\t\t\tif (continuationClasses.length > 0) entry.continuationClasses = continuationClasses;\r\n\t\t\t\t\t\r\n\t\t\t\t\tif (regexToMatch !== \".\") {\r\n\t\t\t\t\t\tif (ruleType === \"SFX\") {\r\n\t\t\t\t\t\t\tentry.match = new RegExp(regexToMatch + \"$\");\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t\telse {\r\n\t\t\t\t\t\t\tentry.match = new RegExp(\"^\" + regexToMatch);\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t\t\r\n\t\t\t\t\tif (charactersToRemove != \"0\") {\r\n\t\t\t\t\t\tif (ruleType === \"SFX\") {\r\n\t\t\t\t\t\t\tentry.remove = new RegExp(charactersToRemove  + \"$\");\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t\telse {\r\n\t\t\t\t\t\t\tentry.remove = charactersToRemove;\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t\t\r\n\t\t\t\t\tentries.push(entry);\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t\trules[ruleCode] = { \"type\" : ruleType, \"combineable\" : (combineable == \"Y\"), \"entries\" : entries };\r\n\t\t\t\t\r\n\t\t\t\ti += numEntries;\r\n\t\t\t}\r\n\t\t\telse if (ruleType === \"COMPOUNDRULE\") {\r\n\t\t\t\tvar numEntries = parseInt(definitionParts[1], 10);\r\n\t\t\t\t\r\n\t\t\t\tfor (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {\r\n\t\t\t\t\tvar line = lines[j];\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar lineParts = line.split(/\\s+/);\r\n\t\t\t\t\tthis.compoundRules.push(lineParts[1]);\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t\ti += numEntries;\r\n\t\t\t}\r\n\t\t\telse if (ruleType === \"REP\") {\r\n\t\t\t\tvar lineParts = line.split(/\\s+/);\r\n\t\t\t\t\r\n\t\t\t\tif (lineParts.length === 3) {\r\n\t\t\t\t\tthis.replacementTable.push([ lineParts[1], lineParts[2] ]);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\telse {\r\n\t\t\t\t// ONLYINCOMPOUND\r\n\t\t\t\t// COMPOUNDMIN\r\n\t\t\t\t// FLAG\r\n\t\t\t\t// KEEPCASE\r\n\t\t\t\t// NEEDAFFIX\r\n\t\t\t\t\r\n\t\t\t\tthis.flags[ruleType] = definitionParts[1];\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\treturn rules;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Removes comment lines and then cleans up blank lines and trailing whitespace.\r\n\t *\r\n\t * @param {String} data The data from an affix file.\r\n\t * @return {String} The cleaned-up data.\r\n\t */\r\n\t\r\n\t_removeAffixComments : function (data) {\r\n\t\t// Remove comments\r\n\t\tdata = data.replace(/#.*$/mg, \"\");\r\n\t\t\r\n\t\t// Trim each line\r\n\t\tdata = data.replace(/^\\s\\s*/m, '').replace(/\\s\\s*$/m, '');\r\n\t\t\r\n\t\t// Remove blank lines.\r\n\t\tdata = data.replace(/\\n{2,}/g, \"\\n\");\r\n\t\t\r\n\t\t// Trim the entire string\r\n\t\tdata = data.replace(/^\\s\\s*/, '').replace(/\\s\\s*$/, '');\r\n\t\t\r\n\t\treturn data;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Parses the words out from the .dic file.\r\n\t *\r\n\t * @param {String} data The data from the dictionary file.\r\n\t * @returns object The lookup table containing all of the words and\r\n\t *                 word forms from the dictionary.\r\n\t */\r\n\t\r\n\t_parseDIC : function (data) {\r\n\t\tdata = this._removeDicComments(data);\r\n\t\t\r\n\t\tvar lines = data.split(\"\\n\");\r\n\t\tvar dictionaryTable = {};\r\n\t\t\r\n\t\tfunction addWord(word, rules) {\r\n\t\t\t// Some dictionaries will list the same word multiple times with different rule sets.\r\n\t\t\tif (!(word in dictionaryTable) || typeof dictionaryTable[word] != 'object') {\r\n\t\t\t\tdictionaryTable[word] = [];\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tdictionaryTable[word].push(rules);\r\n\t\t}\r\n\t\t\r\n\t\t// The first line is the number of words in the dictionary.\r\n\t\tfor (var i = 1, _len = lines.length; i < _len; i++) {\r\n\t\t\tvar line = lines[i];\r\n\t\t\t\r\n\t\t\tvar parts = line.split(\"/\", 2);\r\n\t\t\t\r\n\t\t\tvar word = parts[0];\r\n\r\n\t\t\t// Now for each affix rule, generate that form of the word.\r\n\t\t\tif (parts.length > 1) {\r\n\t\t\t\tvar ruleCodesArray = this.parseRuleCodes(parts[1]);\r\n\t\t\t\t\r\n\t\t\t\t// Save the ruleCodes for compound word situations.\r\n\t\t\t\tif (!(\"NEEDAFFIX\" in this.flags) || ruleCodesArray.indexOf(this.flags.NEEDAFFIX) == -1) {\r\n\t\t\t\t\taddWord(word, ruleCodesArray);\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t\tfor (var j = 0, _jlen = ruleCodesArray.length; j < _jlen; j++) {\r\n\t\t\t\t\tvar code = ruleCodesArray[j];\r\n\t\t\t\t\t\r\n\t\t\t\t\tvar rule = this.rules[code];\r\n\t\t\t\t\t\r\n\t\t\t\t\tif (rule) {\r\n\t\t\t\t\t\tvar newWords = this._applyRule(word, rule);\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\tfor (var ii = 0, _iilen = newWords.length; ii < _iilen; ii++) {\r\n\t\t\t\t\t\t\tvar newWord = newWords[ii];\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\taddWord(newWord, []);\r\n\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\tif (rule.combineable) {\r\n\t\t\t\t\t\t\t\tfor (var k = j + 1; k < _jlen; k++) {\r\n\t\t\t\t\t\t\t\t\tvar combineCode = ruleCodesArray[k];\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\tvar combineRule = this.rules[combineCode];\r\n\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\tif (combineRule) {\r\n\t\t\t\t\t\t\t\t\t\tif (combineRule.combineable && (rule.type != combineRule.type)) {\r\n\t\t\t\t\t\t\t\t\t\t\tvar otherNewWords = this._applyRule(newWord, combineRule);\r\n\t\t\t\t\t\t\t\t\t\t\t\r\n\t\t\t\t\t\t\t\t\t\t\tfor (var iii = 0, _iiilen = otherNewWords.length; iii < _iiilen; iii++) {\r\n\t\t\t\t\t\t\t\t\t\t\t\tvar otherNewWord = otherNewWords[iii];\r\n\t\t\t\t\t\t\t\t\t\t\t\taddWord(otherNewWord, []);\r\n\t\t\t\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t\t}\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t\t\r\n\t\t\t\t\tif (code in this.compoundRuleCodes) {\r\n\t\t\t\t\t\tthis.compoundRuleCodes[code].push(word);\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\telse {\r\n\t\t\t\taddWord(word.trim(), []);\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\treturn dictionaryTable;\r\n\t},\r\n\t\r\n\t\r\n\t/**\r\n\t * Removes comment lines and then cleans up blank lines and trailing whitespace.\r\n\t *\r\n\t * @param {String} data The data from a .dic file.\r\n\t * @return {String} The cleaned-up data.\r\n\t */\r\n\t\r\n\t_removeDicComments : function (data) {\r\n\t\t// I can't find any official documentation on it, but at least the de_DE\r\n\t\t// dictionary uses tab-indented lines as comments.\r\n\t\t\r\n\t\t// Remove comments\r\n\t\tdata = data.replace(/^\\t.*$/mg, \"\");\r\n\t\t\r\n\t\treturn data;\r\n\t\t\r\n\t\t// Trim each line\r\n\t\tdata = data.replace(/^\\s\\s*/m, '').replace(/\\s\\s*$/m, '');\r\n\t\t\r\n\t\t// Remove blank lines.\r\n\t\tdata = data.replace(/\\n{2,}/g, \"\\n\");\r\n\t\t\r\n\t\t// Trim the entire string\r\n\t\tdata = data.replace(/^\\s\\s*/, '').replace(/\\s\\s*$/, '');\r\n\t\t\r\n\t\treturn data;\r\n\t},\r\n\t\r\n\tparseRuleCodes : function (textCodes) {\r\n\t\tif (!textCodes) {\r\n\t\t\treturn [];\r\n\t\t}\r\n\t\telse if (!(\"FLAG\" in this.flags)) {\r\n\t\t\treturn textCodes.split(\"\");\r\n\t\t}\r\n\t\telse if (this.flags.FLAG === \"long\") {\r\n\t\t\tvar flags = [];\r\n\t\t\t\r\n\t\t\tfor (var i = 0, _len = textCodes.length; i < _len; i += 2) {\r\n\t\t\t\tflags.push(textCodes.substr(i, 2));\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\treturn flags;\r\n\t\t}\r\n\t\telse if (this.flags.FLAG === \"num\") {\r\n\t\t\treturn textCode.split(\",\");\r\n\t\t}\r\n\t},\r\n\t\r\n\t/**\r\n\t * Applies an affix rule to a word.\r\n\t *\r\n\t * @param {String} word The base word.\r\n\t * @param {Object} rule The affix rule.\r\n\t * @returns {String[]} The new words generated by the rule.\r\n\t */\r\n\t\r\n\t_applyRule : function (word, rule) {\r\n\t\tvar entries = rule.entries;\r\n\t\tvar newWords = [];\r\n\t\t\r\n\t\tfor (var i = 0, _len = entries.length; i < _len; i++) {\r\n\t\t\tvar entry = entries[i];\r\n\t\t\t\r\n\t\t\tif (!entry.match || word.match(entry.match)) {\r\n\t\t\t\tvar newWord = word;\r\n\t\t\t\t\r\n\t\t\t\tif (entry.remove) {\r\n\t\t\t\t\tnewWord = newWord.replace(entry.remove, \"\");\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t\tif (rule.type === \"SFX\") {\r\n\t\t\t\t\tnewWord = newWord + entry.add;\r\n\t\t\t\t}\r\n\t\t\t\telse {\r\n\t\t\t\t\tnewWord = entry.add + newWord;\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t\tnewWords.push(newWord);\r\n\t\t\t\t\r\n\t\t\t\tif (\"continuationClasses\" in entry) {\r\n\t\t\t\t\tfor (var j = 0, _jlen = entry.continuationClasses.length; j < _jlen; j++) {\r\n\t\t\t\t\t\tvar continuationRule = this.rules[entry.continuationClasses[j]];\r\n\t\t\t\t\t\t\r\n\t\t\t\t\t\tif (continuationRule) {\r\n\t\t\t\t\t\t\tnewWords = newWords.concat(this._applyRule(newWord, continuationRule));\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t\t/*\r\n\t\t\t\t\t\telse {\r\n\t\t\t\t\t\t\t// This shouldn't happen, but it does, at least in the de_DE dictionary.\r\n\t\t\t\t\t\t\t// I think the author mistakenly supplied lower-case rule codes instead\r\n\t\t\t\t\t\t\t// of upper-case.\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t\t*/\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\treturn newWords;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Checks whether a word or a capitalization variant exists in the current dictionary.\r\n\t * The word is trimmed and several variations of capitalizations are checked.\r\n\t * If you want to check a word without any changes made to it, call checkExact()\r\n\t *\r\n\t * @see http://blog.stevenlevithan.com/archives/faster-trim-javascript re:trimming function\r\n\t *\r\n\t * @param {String} aWord The word to check.\r\n\t * @returns {Boolean}\r\n\t */\r\n\t\r\n\tcheck : function (aWord) {\r\n\t\t// Remove leading and trailing whitespace\r\n\t\tvar trimmedWord = aWord.replace(/^\\s\\s*/, '').replace(/\\s\\s*$/, '');\r\n\t\t\r\n\t\tif (this.checkExact(trimmedWord)) {\r\n\t\t\treturn true;\r\n\t\t}\r\n\t\t\r\n\t\t// The exact word is not in the dictionary.\r\n\t\tif (trimmedWord.toUpperCase() === trimmedWord) {\r\n\t\t\t// The word was supplied in all uppercase.\r\n\t\t\t// Check for a capitalized form of the word.\r\n\t\t\tvar capitalizedWord = trimmedWord[0] + trimmedWord.substring(1).toLowerCase();\r\n\t\t\t\r\n\t\t\tif (this.hasFlag(capitalizedWord, \"KEEPCASE\")) {\r\n\t\t\t\t// Capitalization variants are not allowed for this word.\r\n\t\t\t\treturn false;\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tif (this.checkExact(capitalizedWord)) {\r\n\t\t\t\treturn true;\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\tvar lowercaseWord = trimmedWord.toLowerCase();\r\n\t\t\r\n\t\tif (lowercaseWord !== trimmedWord) {\r\n\t\t\tif (this.hasFlag(lowercaseWord, \"KEEPCASE\")) {\r\n\t\t\t\t// Capitalization variants are not allowed for this word.\r\n\t\t\t\treturn false;\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\t// Check for a lowercase form\r\n\t\t\tif (this.checkExact(lowercaseWord)) {\r\n\t\t\t\treturn true;\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\treturn false;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Checks whether a word exists in the current dictionary.\r\n\t *\r\n\t * @param {String} word The word to check.\r\n\t * @returns {Boolean}\r\n\t */\r\n\t\r\n\tcheckExact : function (word) {\r\n\t\tvar ruleCodes = this.dictionaryTable[word];\r\n\t\t\r\n\t\tif (typeof ruleCodes === 'undefined') {\r\n\t\t\t// Check if this might be a compound word.\r\n\t\t\tif (\"COMPOUNDMIN\" in this.flags && word.length >= this.flags.COMPOUNDMIN) {\r\n\t\t\t\tfor (var i = 0, _len = this.compoundRules.length; i < _len; i++) {\r\n\t\t\t\t\tif (word.match(this.compoundRules[i])) {\r\n\t\t\t\t\t\treturn true;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\treturn false;\r\n\t\t}\r\n\t\telse {\r\n\t\t\tfor (var i = 0, _len = ruleCodes.length; i < _len; i++) {\r\n\t\t\t\tif (!this.hasFlag(word, \"ONLYINCOMPOUND\", ruleCodes[i])) {\r\n\t\t\t\t\treturn true;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\treturn false;\r\n\t\t}\r\n\t},\r\n\t\r\n\t/**\r\n\t * Looks up whether a given word is flagged with a given flag.\r\n\t *\r\n\t * @param {String} word The word in question.\r\n\t * @param {String} flag The flag in question.\r\n\t * @return {Boolean}\r\n\t */\r\n\t \r\n\thasFlag : function (word, flag, wordFlags) {\r\n\t\tif (flag in this.flags) {\r\n\t\t\tif (typeof wordFlags === 'undefined') {\r\n\t\t\t\tvar wordFlags = Array.prototype.concat.apply([], this.dictionaryTable[word]);\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tif (wordFlags && wordFlags.indexOf(this.flags[flag]) !== -1) {\r\n\t\t\t\treturn true;\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\treturn false;\r\n\t},\r\n\t\r\n\t/**\r\n\t * Returns a list of suggestions for a misspelled word.\r\n\t *\r\n\t * @see http://www.norvig.com/spell-correct.html for the basis of this suggestor.\r\n\t * This suggestor is primitive, but it works.\r\n\t *\r\n\t * @param {String} word The misspelling.\r\n\t * @param {Number} [limit=5] The maximum number of suggestions to return.\r\n\t * @returns {String[]} The array of suggestions.\r\n\t */\r\n\t\r\n\talphabet : \"\",\r\n\t\r\n\tsuggest : function (word, limit) {\r\n\t\tif (!limit) limit = 5;\r\n\t\t\r\n\t\tif (this.check(word)) return [];\r\n\t\t\r\n\t\t// Check the replacement table.\r\n\t\tfor (var i = 0, _len = this.replacementTable.length; i < _len; i++) {\r\n\t\t\tvar replacementEntry = this.replacementTable[i];\r\n\t\t\t\r\n\t\t\tif (word.indexOf(replacementEntry[0]) !== -1) {\r\n\t\t\t\tvar correctedWord = word.replace(replacementEntry[0], replacementEntry[1]);\r\n\t\t\t\t\r\n\t\t\t\tif (this.check(correctedWord)) {\r\n\t\t\t\t\treturn [ correctedWord ];\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t}\r\n\t\t\r\n\t\tvar self = this;\r\n\t\tself.alphabet = \"abcdefghijklmnopqrstuvwxyz\";\r\n\t\t\r\n\t\t/*\r\n\t\tif (!self.alphabet) {\r\n\t\t\t// Use the alphabet as implicitly defined by the words in the dictionary.\r\n\t\t\tvar alphaHash = {};\r\n\t\t\t\r\n\t\t\tfor (var i in self.dictionaryTable) {\r\n\t\t\t\tfor (var j = 0, _len = i.length; j < _len; j++) {\r\n\t\t\t\t\talphaHash[i[j]] = true;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tfor (var i in alphaHash) {\r\n\t\t\t\tself.alphabet += i;\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tvar alphaArray = self.alphabet.split(\"\");\r\n\t\t\talphaArray.sort();\r\n\t\t\tself.alphabet = alphaArray.join(\"\");\r\n\t\t}\r\n\t\t*/\r\n\t\t\r\n\t\tfunction edits1(words) {\r\n\t\t\tvar rv = [];\r\n\t\t\t\r\n\t\t\tfor (var ii = 0, _iilen = words.length; ii < _iilen; ii++) {\r\n\t\t\t\tvar word = words[ii];\r\n\t\t\t\t\r\n\t\t\t\tvar splits = [];\r\n\t\t\t\r\n\t\t\t\tfor (var i = 0, _len = word.length + 1; i < _len; i++) {\r\n\t\t\t\t\tsplits.push([ word.substring(0, i), word.substring(i, word.length) ]);\r\n\t\t\t\t}\r\n\t\t\t\r\n\t\t\t\tvar deletes = [];\r\n\t\t\t\r\n\t\t\t\tfor (var i = 0, _len = splits.length; i < _len; i++) {\r\n\t\t\t\t\tvar s = splits[i];\r\n\t\t\t\t\r\n\t\t\t\t\tif (s[1]) {\r\n\t\t\t\t\t\tdeletes.push(s[0] + s[1].substring(1));\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t\r\n\t\t\t\tvar transposes = [];\r\n\t\t\t\r\n\t\t\t\tfor (var i = 0, _len = splits.length; i < _len; i++) {\r\n\t\t\t\t\tvar s = splits[i];\r\n\t\t\t\t\r\n\t\t\t\t\tif (s[1].length > 1) {\r\n\t\t\t\t\t\ttransposes.push(s[0] + s[1][1] + s[1][0] + s[1].substring(2));\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t\r\n\t\t\t\tvar replaces = [];\r\n\t\t\t\r\n\t\t\t\tfor (var i = 0, _len = splits.length; i < _len; i++) {\r\n\t\t\t\t\tvar s = splits[i];\r\n\t\t\t\t\r\n\t\t\t\t\tif (s[1]) {\r\n\t\t\t\t\t\tfor (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {\r\n\t\t\t\t\t\t\treplaces.push(s[0] + self.alphabet[j] + s[1].substring(1));\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t\r\n\t\t\t\tvar inserts = [];\r\n\t\t\t\r\n\t\t\t\tfor (var i = 0, _len = splits.length; i < _len; i++) {\r\n\t\t\t\t\tvar s = splits[i];\r\n\t\t\t\t\r\n\t\t\t\t\tif (s[1]) {\r\n\t\t\t\t\t\tfor (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {\r\n\t\t\t\t\t\t\treplaces.push(s[0] + self.alphabet[j] + s[1]);\r\n\t\t\t\t\t\t}\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t\r\n\t\t\t\trv = rv.concat(deletes);\r\n\t\t\t\trv = rv.concat(transposes);\r\n\t\t\t\trv = rv.concat(replaces);\r\n\t\t\t\trv = rv.concat(inserts);\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\treturn rv;\r\n\t\t}\r\n\t\t\r\n\t\tfunction known(words) {\r\n\t\t\tvar rv = [];\r\n\t\t\t\r\n\t\t\tfor (var i = 0; i < words.length; i++) {\r\n\t\t\t\tif (self.check(words[i])) {\r\n\t\t\t\t\trv.push(words[i]);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\treturn rv;\r\n\t\t}\r\n\t\t\r\n\t\tfunction correct(word) {\r\n\t\t\t// Get the edit-distance-1 and edit-distance-2 forms of this word.\r\n\t\t\tvar ed1 = edits1([word]);\r\n\t\t\tvar ed2 = edits1(ed1);\r\n\t\t\t\r\n\t\t\tvar corrections = known(ed1).concat(known(ed2));\r\n\t\t\t\r\n\t\t\t// Sort the edits based on how many different ways they were created.\r\n\t\t\tvar weighted_corrections = {};\r\n\t\t\t\r\n\t\t\tfor (var i = 0, _len = corrections.length; i < _len; i++) {\r\n\t\t\t\tif (!(corrections[i] in weighted_corrections)) {\r\n\t\t\t\t\tweighted_corrections[corrections[i]] = 1;\r\n\t\t\t\t}\r\n\t\t\t\telse {\r\n\t\t\t\t\tweighted_corrections[corrections[i]] += 1;\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tvar sorted_corrections = [];\r\n\t\t\t\r\n\t\t\tfor (var i in weighted_corrections) {\r\n\t\t\t\tsorted_corrections.push([ i, weighted_corrections[i] ]);\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tfunction sorter(a, b) {\r\n\t\t\t\tif (a[1] < b[1]) {\r\n\t\t\t\t\treturn -1;\r\n\t\t\t\t}\r\n\t\t\t\t\r\n\t\t\t\treturn 1;\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\tsorted_corrections.sort(sorter).reverse();\r\n\t\t\t\r\n\t\t\tvar rv = [];\r\n\t\t\t\r\n\t\t\tfor (var i = 0, _len = Math.min(limit, sorted_corrections.length); i < _len; i++) {\r\n\t\t\t\tif (!self.hasFlag(sorted_corrections[i][0], \"NOSUGGEST\")) {\r\n\t\t\t\t\trv.push(sorted_corrections[i][0]);\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\t\r\n\t\t\treturn rv;\r\n\t\t}\r\n\t\t\r\n\t\treturn correct(word);\r\n\t}\r\n};\n; browserify_shim__define__module__export__(typeof Typo != \"undefined\" ? Typo : window.Typo);\n\n}).call(global, undefined, undefined, undefined, undefined, function defineExport(ex) { module.exports = ex; });\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../../lib/codemirror\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../../lib/codemirror\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n  \"use strict\";\r\n\r\n  CodeMirror.defineOption(\"fullScreen\", false, function(cm, val, old) {\r\n    if (old == CodeMirror.Init) old = false;\r\n    if (!old == !val) return;\r\n    if (val) setFullscreen(cm);\r\n    else setNormal(cm);\r\n  });\r\n\r\n  function setFullscreen(cm) {\r\n    var wrap = cm.getWrapperElement();\r\n    cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,\r\n                                  width: wrap.style.width, height: wrap.style.height};\r\n    wrap.style.width = \"\";\r\n    wrap.style.height = \"auto\";\r\n    wrap.className += \" CodeMirror-fullscreen\";\r\n    document.documentElement.style.overflow = \"hidden\";\r\n    cm.refresh();\r\n  }\r\n\r\n  function setNormal(cm) {\r\n    var wrap = cm.getWrapperElement();\r\n    wrap.className = wrap.className.replace(/\\s*CodeMirror-fullscreen\\b/, \"\");\r\n    document.documentElement.style.overflow = \"\";\r\n    var info = cm.state.fullScreenRestore;\r\n    wrap.style.width = info.width; wrap.style.height = info.height;\r\n    window.scrollTo(info.scrollLeft, info.scrollTop);\r\n    cm.refresh();\r\n  }\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../../lib/codemirror\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../../lib/codemirror\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n  \"use strict\";\r\n\r\n  var listRE = /^(\\s*)(>[> ]*|[*+-]\\s|(\\d+)([.)]))(\\s*)/,\r\n      emptyListRE = /^(\\s*)(>[> ]*|[*+-]|(\\d+)[.)])(\\s*)$/,\r\n      unorderedListRE = /[*+-]\\s/;\r\n\r\n  CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {\r\n    if (cm.getOption(\"disableInput\")) return CodeMirror.Pass;\r\n    var ranges = cm.listSelections(), replacements = [];\r\n    for (var i = 0; i < ranges.length; i++) {\r\n      var pos = ranges[i].head;\r\n      var eolState = cm.getStateAfter(pos.line);\r\n      var inList = eolState.list !== false;\r\n      var inQuote = eolState.quote !== 0;\r\n\r\n      var line = cm.getLine(pos.line), match = listRE.exec(line);\r\n      if (!ranges[i].empty() || (!inList && !inQuote) || !match) {\r\n        cm.execCommand(\"newlineAndIndent\");\r\n        return;\r\n      }\r\n      if (emptyListRE.test(line)) {\r\n        cm.replaceRange(\"\", {\r\n          line: pos.line, ch: 0\r\n        }, {\r\n          line: pos.line, ch: pos.ch + 1\r\n        });\r\n        replacements[i] = \"\\n\";\r\n      } else {\r\n        var indent = match[1], after = match[5];\r\n        var bullet = unorderedListRE.test(match[2]) || match[2].indexOf(\">\") >= 0\r\n          ? match[2]\r\n          : (parseInt(match[3], 10) + 1) + match[4];\r\n\r\n        replacements[i] = \"\\n\" + indent + bullet + after;\r\n      }\r\n    }\r\n\r\n    cm.replaceSelections(replacements);\r\n  };\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n// Utility function that allows modes to be combined. The mode given\r\n// as the base argument takes care of most of the normal mode\r\n// functionality, but a second (typically simple) mode is used, which\r\n// can override the style of text. Both modes get to parse all of the\r\n// text, but when both assign a non-null style to a piece of code, the\r\n// overlay wins, unless the combine argument was true and not overridden,\r\n// or state.overlay.combineTokens was true, in which case the styles are\r\n// combined.\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../../lib/codemirror\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../../lib/codemirror\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n\"use strict\";\r\n\r\nCodeMirror.overlayMode = function(base, overlay, combine) {\r\n  return {\r\n    startState: function() {\r\n      return {\r\n        base: CodeMirror.startState(base),\r\n        overlay: CodeMirror.startState(overlay),\r\n        basePos: 0, baseCur: null,\r\n        overlayPos: 0, overlayCur: null,\r\n        streamSeen: null\r\n      };\r\n    },\r\n    copyState: function(state) {\r\n      return {\r\n        base: CodeMirror.copyState(base, state.base),\r\n        overlay: CodeMirror.copyState(overlay, state.overlay),\r\n        basePos: state.basePos, baseCur: null,\r\n        overlayPos: state.overlayPos, overlayCur: null\r\n      };\r\n    },\r\n\r\n    token: function(stream, state) {\r\n      if (stream != state.streamSeen ||\r\n          Math.min(state.basePos, state.overlayPos) < stream.start) {\r\n        state.streamSeen = stream;\r\n        state.basePos = state.overlayPos = stream.start;\r\n      }\r\n\r\n      if (stream.start == state.basePos) {\r\n        state.baseCur = base.token(stream, state.base);\r\n        state.basePos = stream.pos;\r\n      }\r\n      if (stream.start == state.overlayPos) {\r\n        stream.pos = stream.start;\r\n        state.overlayCur = overlay.token(stream, state.overlay);\r\n        state.overlayPos = stream.pos;\r\n      }\r\n      stream.pos = Math.min(state.basePos, state.overlayPos);\r\n\r\n      // state.overlay.combineTokens always takes precedence over combine,\r\n      // unless set to null\r\n      if (state.overlayCur == null) return state.baseCur;\r\n      else if (state.baseCur != null &&\r\n               state.overlay.combineTokens ||\r\n               combine && state.overlay.combineTokens == null)\r\n        return state.baseCur + \" \" + state.overlayCur;\r\n      else return state.overlayCur;\r\n    },\r\n\r\n    indent: base.indent && function(state, textAfter) {\r\n      return base.indent(state.base, textAfter);\r\n    },\r\n    electricChars: base.electricChars,\r\n\r\n    innerMode: function(state) { return {state: state.base, mode: base}; },\r\n\r\n    blankLine: function(state) {\r\n      if (base.blankLine) base.blankLine(state.base);\r\n      if (overlay.blankLine) overlay.blankLine(state.overlay);\r\n    }\r\n  };\r\n};\r\n\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n// This is CodeMirror (http://codemirror.net), a code editor\r\n// implemented in JavaScript on top of the browser's DOM.\r\n//\r\n// You can find some technical background for some of the code below\r\n// at http://marijnhaverbeke.nl/blog/#cm-internals .\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    module.exports = mod();\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    return define([], mod);\r\n  else // Plain browser env\r\n    this.CodeMirror = mod();\r\n})(function() {\r\n  \"use strict\";\r\n\r\n  // BROWSER SNIFFING\r\n\r\n  // Kludges for bugs and behavior differences that can't be feature\r\n  // detected are enabled based on userAgent etc sniffing.\r\n  var userAgent = navigator.userAgent;\r\n  var platform = navigator.platform;\r\n\r\n  var gecko = /gecko\\/\\d/i.test(userAgent);\r\n  var ie_upto10 = /MSIE \\d/.test(userAgent);\r\n  var ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(userAgent);\r\n  var ie = ie_upto10 || ie_11up;\r\n  var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);\r\n  var webkit = /WebKit\\//.test(userAgent);\r\n  var qtwebkit = webkit && /Qt\\/\\d+\\.\\d+/.test(userAgent);\r\n  var chrome = /Chrome\\//.test(userAgent);\r\n  var presto = /Opera\\//.test(userAgent);\r\n  var safari = /Apple Computer/.test(navigator.vendor);\r\n  var mac_geMountainLion = /Mac OS X 1\\d\\D([8-9]|\\d\\d)\\D/.test(userAgent);\r\n  var phantom = /PhantomJS/.test(userAgent);\r\n\r\n  var ios = /AppleWebKit/.test(userAgent) && /Mobile\\/\\w+/.test(userAgent);\r\n  // This is woefully incomplete. Suggestions for alternative methods welcome.\r\n  var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);\r\n  var mac = ios || /Mac/.test(platform);\r\n  var windows = /win/i.test(platform);\r\n\r\n  var presto_version = presto && userAgent.match(/Version\\/(\\d*\\.\\d*)/);\r\n  if (presto_version) presto_version = Number(presto_version[1]);\r\n  if (presto_version && presto_version >= 15) { presto = false; webkit = true; }\r\n  // Some browsers use the wrong event properties to signal cmd/ctrl on OS X\r\n  var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));\r\n  var captureRightClick = gecko || (ie && ie_version >= 9);\r\n\r\n  // Optimize some code when these features are not used.\r\n  var sawReadOnlySpans = false, sawCollapsedSpans = false;\r\n\r\n  // EDITOR CONSTRUCTOR\r\n\r\n  // A CodeMirror instance represents an editor. This is the object\r\n  // that user code is usually dealing with.\r\n\r\n  function CodeMirror(place, options) {\r\n    if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);\r\n\r\n    this.options = options = options ? copyObj(options) : {};\r\n    // Determine effective options based on given values and defaults.\r\n    copyObj(defaults, options, false);\r\n    setGuttersForLineNumbers(options);\r\n\r\n    var doc = options.value;\r\n    if (typeof doc == \"string\") doc = new Doc(doc, options.mode, null, options.lineSeparator);\r\n    this.doc = doc;\r\n\r\n    var input = new CodeMirror.inputStyles[options.inputStyle](this);\r\n    var display = this.display = new Display(place, doc, input);\r\n    display.wrapper.CodeMirror = this;\r\n    updateGutters(this);\r\n    themeChanged(this);\r\n    if (options.lineWrapping)\r\n      this.display.wrapper.className += \" CodeMirror-wrap\";\r\n    if (options.autofocus && !mobile) display.input.focus();\r\n    initScrollbars(this);\r\n\r\n    this.state = {\r\n      keyMaps: [],  // stores maps added by addKeyMap\r\n      overlays: [], // highlighting overlays, as added by addOverlay\r\n      modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info\r\n      overwrite: false,\r\n      delayingBlurEvent: false,\r\n      focused: false,\r\n      suppressEdits: false, // used to disable editing during key handlers when in readOnly mode\r\n      pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll\r\n      selectingText: false,\r\n      draggingText: false,\r\n      highlight: new Delayed(), // stores highlight worker timeout\r\n      keySeq: null,  // Unfinished key sequence\r\n      specialChars: null\r\n    };\r\n\r\n    var cm = this;\r\n\r\n    // Override magic textarea content restore that IE sometimes does\r\n    // on our hidden textarea on reload\r\n    if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);\r\n\r\n    registerEventHandlers(this);\r\n    ensureGlobalHandlers();\r\n\r\n    startOperation(this);\r\n    this.curOp.forceUpdate = true;\r\n    attachDoc(this, doc);\r\n\r\n    if ((options.autofocus && !mobile) || cm.hasFocus())\r\n      setTimeout(bind(onFocus, this), 20);\r\n    else\r\n      onBlur(this);\r\n\r\n    for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))\r\n      optionHandlers[opt](this, options[opt], Init);\r\n    maybeUpdateLineNumberWidth(this);\r\n    if (options.finishInit) options.finishInit(this);\r\n    for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);\r\n    endOperation(this);\r\n    // Suppress optimizelegibility in Webkit, since it breaks text\r\n    // measuring on line wrapping boundaries.\r\n    if (webkit && options.lineWrapping &&\r\n        getComputedStyle(display.lineDiv).textRendering == \"optimizelegibility\")\r\n      display.lineDiv.style.textRendering = \"auto\";\r\n  }\r\n\r\n  // DISPLAY CONSTRUCTOR\r\n\r\n  // The display handles the DOM integration, both for input reading\r\n  // and content drawing. It holds references to DOM nodes and\r\n  // display-related state.\r\n\r\n  function Display(place, doc, input) {\r\n    var d = this;\r\n    this.input = input;\r\n\r\n    // Covers bottom-right square when both scrollbars are present.\r\n    d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\");\r\n    d.scrollbarFiller.setAttribute(\"cm-not-content\", \"true\");\r\n    // Covers bottom of gutter when coverGutterNextToScrollbar is on\r\n    // and h scrollbar is present.\r\n    d.gutterFiller = elt(\"div\", null, \"CodeMirror-gutter-filler\");\r\n    d.gutterFiller.setAttribute(\"cm-not-content\", \"true\");\r\n    // Will contain the actual code, positioned to cover the viewport.\r\n    d.lineDiv = elt(\"div\", null, \"CodeMirror-code\");\r\n    // Elements are added to these to represent selection and cursors.\r\n    d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\");\r\n    d.cursorDiv = elt(\"div\", null, \"CodeMirror-cursors\");\r\n    // A visibility: hidden element used to find the size of things.\r\n    d.measure = elt(\"div\", null, \"CodeMirror-measure\");\r\n    // When lines outside of the viewport are measured, they are drawn in this.\r\n    d.lineMeasure = elt(\"div\", null, \"CodeMirror-measure\");\r\n    // Wraps everything that needs to exist inside the vertically-padded coordinate system\r\n    d.lineSpace = elt(\"div\", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],\r\n                      null, \"position: relative; outline: none\");\r\n    // Moved around its parent to cover visible view.\r\n    d.mover = elt(\"div\", [elt(\"div\", [d.lineSpace], \"CodeMirror-lines\")], null, \"position: relative\");\r\n    // Set to the height of the document, allowing scrolling.\r\n    d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\");\r\n    d.sizerWidth = null;\r\n    // Behavior of elts with overflow: auto and padding is\r\n    // inconsistent across browsers. This is used to ensure the\r\n    // scrollable area is big enough.\r\n    d.heightForcer = elt(\"div\", null, null, \"position: absolute; height: \" + scrollerGap + \"px; width: 1px;\");\r\n    // Will contain the gutters, if any.\r\n    d.gutters = elt(\"div\", null, \"CodeMirror-gutters\");\r\n    d.lineGutter = null;\r\n    // Actual scrollable element.\r\n    d.scroller = elt(\"div\", [d.sizer, d.heightForcer, d.gutters], \"CodeMirror-scroll\");\r\n    d.scroller.setAttribute(\"tabIndex\", \"-1\");\r\n    // The element in which the editor lives.\r\n    d.wrapper = elt(\"div\", [d.scrollbarFiller, d.gutterFiller, d.scroller], \"CodeMirror\");\r\n\r\n    // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)\r\n    if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }\r\n    if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;\r\n\r\n    if (place) {\r\n      if (place.appendChild) place.appendChild(d.wrapper);\r\n      else place(d.wrapper);\r\n    }\r\n\r\n    // Current rendered range (may be bigger than the view window).\r\n    d.viewFrom = d.viewTo = doc.first;\r\n    d.reportedViewFrom = d.reportedViewTo = doc.first;\r\n    // Information about the rendered lines.\r\n    d.view = [];\r\n    d.renderedView = null;\r\n    // Holds info about a single rendered line when it was rendered\r\n    // for measurement, while not in view.\r\n    d.externalMeasured = null;\r\n    // Empty space (in pixels) above the view\r\n    d.viewOffset = 0;\r\n    d.lastWrapHeight = d.lastWrapWidth = 0;\r\n    d.updateLineNumbers = null;\r\n\r\n    d.nativeBarWidth = d.barHeight = d.barWidth = 0;\r\n    d.scrollbarsClipped = false;\r\n\r\n    // Used to only resize the line number gutter when necessary (when\r\n    // the amount of lines crosses a boundary that makes its width change)\r\n    d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;\r\n    // Set to true when a non-horizontal-scrolling line widget is\r\n    // added. As an optimization, line widget aligning is skipped when\r\n    // this is false.\r\n    d.alignWidgets = false;\r\n\r\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\r\n\r\n    // Tracks the maximum line length so that the horizontal scrollbar\r\n    // can be kept static when scrolling.\r\n    d.maxLine = null;\r\n    d.maxLineLength = 0;\r\n    d.maxLineChanged = false;\r\n\r\n    // Used for measuring wheel scrolling granularity\r\n    d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;\r\n\r\n    // True when shift is held down.\r\n    d.shift = false;\r\n\r\n    // Used to track whether anything happened since the context menu\r\n    // was opened.\r\n    d.selForContextMenu = null;\r\n\r\n    d.activeTouch = null;\r\n\r\n    input.init(d);\r\n  }\r\n\r\n  // STATE UPDATES\r\n\r\n  // Used to get the editor into a consistent state again when options change.\r\n\r\n  function loadMode(cm) {\r\n    cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);\r\n    resetModeState(cm);\r\n  }\r\n\r\n  function resetModeState(cm) {\r\n    cm.doc.iter(function(line) {\r\n      if (line.stateAfter) line.stateAfter = null;\r\n      if (line.styles) line.styles = null;\r\n    });\r\n    cm.doc.frontier = cm.doc.first;\r\n    startWorker(cm, 100);\r\n    cm.state.modeGen++;\r\n    if (cm.curOp) regChange(cm);\r\n  }\r\n\r\n  function wrappingChanged(cm) {\r\n    if (cm.options.lineWrapping) {\r\n      addClass(cm.display.wrapper, \"CodeMirror-wrap\");\r\n      cm.display.sizer.style.minWidth = \"\";\r\n      cm.display.sizerWidth = null;\r\n    } else {\r\n      rmClass(cm.display.wrapper, \"CodeMirror-wrap\");\r\n      findMaxLine(cm);\r\n    }\r\n    estimateLineHeights(cm);\r\n    regChange(cm);\r\n    clearCaches(cm);\r\n    setTimeout(function(){updateScrollbars(cm);}, 100);\r\n  }\r\n\r\n  // Returns a function that estimates the height of a line, to use as\r\n  // first approximation until the line becomes visible (and is thus\r\n  // properly measurable).\r\n  function estimateHeight(cm) {\r\n    var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;\r\n    var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);\r\n    return function(line) {\r\n      if (lineIsHidden(cm.doc, line)) return 0;\r\n\r\n      var widgetsHeight = 0;\r\n      if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {\r\n        if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;\r\n      }\r\n\r\n      if (wrapping)\r\n        return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;\r\n      else\r\n        return widgetsHeight + th;\r\n    };\r\n  }\r\n\r\n  function estimateLineHeights(cm) {\r\n    var doc = cm.doc, est = estimateHeight(cm);\r\n    doc.iter(function(line) {\r\n      var estHeight = est(line);\r\n      if (estHeight != line.height) updateLineHeight(line, estHeight);\r\n    });\r\n  }\r\n\r\n  function themeChanged(cm) {\r\n    cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\r\n      cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\");\r\n    clearCaches(cm);\r\n  }\r\n\r\n  function guttersChanged(cm) {\r\n    updateGutters(cm);\r\n    regChange(cm);\r\n    setTimeout(function(){alignHorizontally(cm);}, 20);\r\n  }\r\n\r\n  // Rebuild the gutter elements, ensure the margin to the left of the\r\n  // code matches their width.\r\n  function updateGutters(cm) {\r\n    var gutters = cm.display.gutters, specs = cm.options.gutters;\r\n    removeChildren(gutters);\r\n    for (var i = 0; i < specs.length; ++i) {\r\n      var gutterClass = specs[i];\r\n      var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + gutterClass));\r\n      if (gutterClass == \"CodeMirror-linenumbers\") {\r\n        cm.display.lineGutter = gElt;\r\n        gElt.style.width = (cm.display.lineNumWidth || 1) + \"px\";\r\n      }\r\n    }\r\n    gutters.style.display = i ? \"\" : \"none\";\r\n    updateGutterSpace(cm);\r\n  }\r\n\r\n  function updateGutterSpace(cm) {\r\n    var width = cm.display.gutters.offsetWidth;\r\n    cm.display.sizer.style.marginLeft = width + \"px\";\r\n  }\r\n\r\n  // Compute the character length of a line, taking into account\r\n  // collapsed ranges (see markText) that might hide parts, and join\r\n  // other lines onto it.\r\n  function lineLength(line) {\r\n    if (line.height == 0) return 0;\r\n    var len = line.text.length, merged, cur = line;\r\n    while (merged = collapsedSpanAtStart(cur)) {\r\n      var found = merged.find(0, true);\r\n      cur = found.from.line;\r\n      len += found.from.ch - found.to.ch;\r\n    }\r\n    cur = line;\r\n    while (merged = collapsedSpanAtEnd(cur)) {\r\n      var found = merged.find(0, true);\r\n      len -= cur.text.length - found.from.ch;\r\n      cur = found.to.line;\r\n      len += cur.text.length - found.to.ch;\r\n    }\r\n    return len;\r\n  }\r\n\r\n  // Find the longest line in the document.\r\n  function findMaxLine(cm) {\r\n    var d = cm.display, doc = cm.doc;\r\n    d.maxLine = getLine(doc, doc.first);\r\n    d.maxLineLength = lineLength(d.maxLine);\r\n    d.maxLineChanged = true;\r\n    doc.iter(function(line) {\r\n      var len = lineLength(line);\r\n      if (len > d.maxLineLength) {\r\n        d.maxLineLength = len;\r\n        d.maxLine = line;\r\n      }\r\n    });\r\n  }\r\n\r\n  // Make sure the gutters options contains the element\r\n  // \"CodeMirror-linenumbers\" when the lineNumbers option is true.\r\n  function setGuttersForLineNumbers(options) {\r\n    var found = indexOf(options.gutters, \"CodeMirror-linenumbers\");\r\n    if (found == -1 && options.lineNumbers) {\r\n      options.gutters = options.gutters.concat([\"CodeMirror-linenumbers\"]);\r\n    } else if (found > -1 && !options.lineNumbers) {\r\n      options.gutters = options.gutters.slice(0);\r\n      options.gutters.splice(found, 1);\r\n    }\r\n  }\r\n\r\n  // SCROLLBARS\r\n\r\n  // Prepare DOM reads needed to update the scrollbars. Done in one\r\n  // shot to minimize update/measure roundtrips.\r\n  function measureForScrollbars(cm) {\r\n    var d = cm.display, gutterW = d.gutters.offsetWidth;\r\n    var docH = Math.round(cm.doc.height + paddingVert(cm.display));\r\n    return {\r\n      clientHeight: d.scroller.clientHeight,\r\n      viewHeight: d.wrapper.clientHeight,\r\n      scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,\r\n      viewWidth: d.wrapper.clientWidth,\r\n      barLeft: cm.options.fixedGutter ? gutterW : 0,\r\n      docHeight: docH,\r\n      scrollHeight: docH + scrollGap(cm) + d.barHeight,\r\n      nativeBarWidth: d.nativeBarWidth,\r\n      gutterWidth: gutterW\r\n    };\r\n  }\r\n\r\n  function NativeScrollbars(place, scroll, cm) {\r\n    this.cm = cm;\r\n    var vert = this.vert = elt(\"div\", [elt(\"div\", null, null, \"min-width: 1px\")], \"CodeMirror-vscrollbar\");\r\n    var horiz = this.horiz = elt(\"div\", [elt(\"div\", null, null, \"height: 100%; min-height: 1px\")], \"CodeMirror-hscrollbar\");\r\n    place(vert); place(horiz);\r\n\r\n    on(vert, \"scroll\", function() {\r\n      if (vert.clientHeight) scroll(vert.scrollTop, \"vertical\");\r\n    });\r\n    on(horiz, \"scroll\", function() {\r\n      if (horiz.clientWidth) scroll(horiz.scrollLeft, \"horizontal\");\r\n    });\r\n\r\n    this.checkedOverlay = false;\r\n    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\r\n    if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = \"18px\";\r\n  }\r\n\r\n  NativeScrollbars.prototype = copyObj({\r\n    update: function(measure) {\r\n      var needsH = measure.scrollWidth > measure.clientWidth + 1;\r\n      var needsV = measure.scrollHeight > measure.clientHeight + 1;\r\n      var sWidth = measure.nativeBarWidth;\r\n\r\n      if (needsV) {\r\n        this.vert.style.display = \"block\";\r\n        this.vert.style.bottom = needsH ? sWidth + \"px\" : \"0\";\r\n        var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);\r\n        // A bug in IE8 can cause this value to be negative, so guard it.\r\n        this.vert.firstChild.style.height =\r\n          Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + \"px\";\r\n      } else {\r\n        this.vert.style.display = \"\";\r\n        this.vert.firstChild.style.height = \"0\";\r\n      }\r\n\r\n      if (needsH) {\r\n        this.horiz.style.display = \"block\";\r\n        this.horiz.style.right = needsV ? sWidth + \"px\" : \"0\";\r\n        this.horiz.style.left = measure.barLeft + \"px\";\r\n        var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);\r\n        this.horiz.firstChild.style.width =\r\n          (measure.scrollWidth - measure.clientWidth + totalWidth) + \"px\";\r\n      } else {\r\n        this.horiz.style.display = \"\";\r\n        this.horiz.firstChild.style.width = \"0\";\r\n      }\r\n\r\n      if (!this.checkedOverlay && measure.clientHeight > 0) {\r\n        if (sWidth == 0) this.overlayHack();\r\n        this.checkedOverlay = true;\r\n      }\r\n\r\n      return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};\r\n    },\r\n    setScrollLeft: function(pos) {\r\n      if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;\r\n    },\r\n    setScrollTop: function(pos) {\r\n      if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;\r\n    },\r\n    overlayHack: function() {\r\n      var w = mac && !mac_geMountainLion ? \"12px\" : \"18px\";\r\n      this.horiz.style.minHeight = this.vert.style.minWidth = w;\r\n      var self = this;\r\n      var barMouseDown = function(e) {\r\n        if (e_target(e) != self.vert && e_target(e) != self.horiz)\r\n          operation(self.cm, onMouseDown)(e);\r\n      };\r\n      on(this.vert, \"mousedown\", barMouseDown);\r\n      on(this.horiz, \"mousedown\", barMouseDown);\r\n    },\r\n    clear: function() {\r\n      var parent = this.horiz.parentNode;\r\n      parent.removeChild(this.horiz);\r\n      parent.removeChild(this.vert);\r\n    }\r\n  }, NativeScrollbars.prototype);\r\n\r\n  function NullScrollbars() {}\r\n\r\n  NullScrollbars.prototype = copyObj({\r\n    update: function() { return {bottom: 0, right: 0}; },\r\n    setScrollLeft: function() {},\r\n    setScrollTop: function() {},\r\n    clear: function() {}\r\n  }, NullScrollbars.prototype);\r\n\r\n  CodeMirror.scrollbarModel = {\"native\": NativeScrollbars, \"null\": NullScrollbars};\r\n\r\n  function initScrollbars(cm) {\r\n    if (cm.display.scrollbars) {\r\n      cm.display.scrollbars.clear();\r\n      if (cm.display.scrollbars.addClass)\r\n        rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);\r\n    }\r\n\r\n    cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {\r\n      cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);\r\n      // Prevent clicks in the scrollbars from killing focus\r\n      on(node, \"mousedown\", function() {\r\n        if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);\r\n      });\r\n      node.setAttribute(\"cm-not-content\", \"true\");\r\n    }, function(pos, axis) {\r\n      if (axis == \"horizontal\") setScrollLeft(cm, pos);\r\n      else setScrollTop(cm, pos);\r\n    }, cm);\r\n    if (cm.display.scrollbars.addClass)\r\n      addClass(cm.display.wrapper, cm.display.scrollbars.addClass);\r\n  }\r\n\r\n  function updateScrollbars(cm, measure) {\r\n    if (!measure) measure = measureForScrollbars(cm);\r\n    var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;\r\n    updateScrollbarsInner(cm, measure);\r\n    for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {\r\n      if (startWidth != cm.display.barWidth && cm.options.lineWrapping)\r\n        updateHeightsInViewport(cm);\r\n      updateScrollbarsInner(cm, measureForScrollbars(cm));\r\n      startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;\r\n    }\r\n  }\r\n\r\n  // Re-synchronize the fake scrollbars with the actual size of the\r\n  // content.\r\n  function updateScrollbarsInner(cm, measure) {\r\n    var d = cm.display;\r\n    var sizes = d.scrollbars.update(measure);\r\n\r\n    d.sizer.style.paddingRight = (d.barWidth = sizes.right) + \"px\";\r\n    d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + \"px\";\r\n\r\n    if (sizes.right && sizes.bottom) {\r\n      d.scrollbarFiller.style.display = \"block\";\r\n      d.scrollbarFiller.style.height = sizes.bottom + \"px\";\r\n      d.scrollbarFiller.style.width = sizes.right + \"px\";\r\n    } else d.scrollbarFiller.style.display = \"\";\r\n    if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {\r\n      d.gutterFiller.style.display = \"block\";\r\n      d.gutterFiller.style.height = sizes.bottom + \"px\";\r\n      d.gutterFiller.style.width = measure.gutterWidth + \"px\";\r\n    } else d.gutterFiller.style.display = \"\";\r\n  }\r\n\r\n  // Compute the lines that are visible in a given viewport (defaults\r\n  // the the current scroll position). viewport may contain top,\r\n  // height, and ensure (see op.scrollToPos) properties.\r\n  function visibleLines(display, doc, viewport) {\r\n    var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;\r\n    top = Math.floor(top - paddingTop(display));\r\n    var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;\r\n\r\n    var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);\r\n    // Ensure is a {from: {line, ch}, to: {line, ch}} object, and\r\n    // forces those lines into the viewport (if possible).\r\n    if (viewport && viewport.ensure) {\r\n      var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;\r\n      if (ensureFrom < from) {\r\n        from = ensureFrom;\r\n        to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);\r\n      } else if (Math.min(ensureTo, doc.lastLine()) >= to) {\r\n        from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);\r\n        to = ensureTo;\r\n      }\r\n    }\r\n    return {from: from, to: Math.max(to, from + 1)};\r\n  }\r\n\r\n  // LINE NUMBERS\r\n\r\n  // Re-align line numbers and gutter marks to compensate for\r\n  // horizontal scrolling.\r\n  function alignHorizontally(cm) {\r\n    var display = cm.display, view = display.view;\r\n    if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;\r\n    var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;\r\n    var gutterW = display.gutters.offsetWidth, left = comp + \"px\";\r\n    for (var i = 0; i < view.length; i++) if (!view[i].hidden) {\r\n      if (cm.options.fixedGutter && view[i].gutter)\r\n        view[i].gutter.style.left = left;\r\n      var align = view[i].alignable;\r\n      if (align) for (var j = 0; j < align.length; j++)\r\n        align[j].style.left = left;\r\n    }\r\n    if (cm.options.fixedGutter)\r\n      display.gutters.style.left = (comp + gutterW) + \"px\";\r\n  }\r\n\r\n  // Used to ensure that the line number gutter is still the right\r\n  // size for the current document size. Returns true when an update\r\n  // is needed.\r\n  function maybeUpdateLineNumberWidth(cm) {\r\n    if (!cm.options.lineNumbers) return false;\r\n    var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;\r\n    if (last.length != display.lineNumChars) {\r\n      var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\r\n                                                 \"CodeMirror-linenumber CodeMirror-gutter-elt\"));\r\n      var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;\r\n      display.lineGutter.style.width = \"\";\r\n      display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;\r\n      display.lineNumWidth = display.lineNumInnerWidth + padding;\r\n      display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;\r\n      display.lineGutter.style.width = display.lineNumWidth + \"px\";\r\n      updateGutterSpace(cm);\r\n      return true;\r\n    }\r\n    return false;\r\n  }\r\n\r\n  function lineNumberFor(options, i) {\r\n    return String(options.lineNumberFormatter(i + options.firstLineNumber));\r\n  }\r\n\r\n  // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,\r\n  // but using getBoundingClientRect to get a sub-pixel-accurate\r\n  // result.\r\n  function compensateForHScroll(display) {\r\n    return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;\r\n  }\r\n\r\n  // DISPLAY DRAWING\r\n\r\n  function DisplayUpdate(cm, viewport, force) {\r\n    var display = cm.display;\r\n\r\n    this.viewport = viewport;\r\n    // Store some values that we'll need later (but don't want to force a relayout for)\r\n    this.visible = visibleLines(display, cm.doc, viewport);\r\n    this.editorIsHidden = !display.wrapper.offsetWidth;\r\n    this.wrapperHeight = display.wrapper.clientHeight;\r\n    this.wrapperWidth = display.wrapper.clientWidth;\r\n    this.oldDisplayWidth = displayWidth(cm);\r\n    this.force = force;\r\n    this.dims = getDimensions(cm);\r\n    this.events = [];\r\n  }\r\n\r\n  DisplayUpdate.prototype.signal = function(emitter, type) {\r\n    if (hasHandler(emitter, type))\r\n      this.events.push(arguments);\r\n  };\r\n  DisplayUpdate.prototype.finish = function() {\r\n    for (var i = 0; i < this.events.length; i++)\r\n      signal.apply(null, this.events[i]);\r\n  };\r\n\r\n  function maybeClipScrollbars(cm) {\r\n    var display = cm.display;\r\n    if (!display.scrollbarsClipped && display.scroller.offsetWidth) {\r\n      display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;\r\n      display.heightForcer.style.height = scrollGap(cm) + \"px\";\r\n      display.sizer.style.marginBottom = -display.nativeBarWidth + \"px\";\r\n      display.sizer.style.borderRightWidth = scrollGap(cm) + \"px\";\r\n      display.scrollbarsClipped = true;\r\n    }\r\n  }\r\n\r\n  // Does the actual updating of the line display. Bails out\r\n  // (returning false) when there is nothing to be done and forced is\r\n  // false.\r\n  function updateDisplayIfNeeded(cm, update) {\r\n    var display = cm.display, doc = cm.doc;\r\n\r\n    if (update.editorIsHidden) {\r\n      resetView(cm);\r\n      return false;\r\n    }\r\n\r\n    // Bail out if the visible area is already rendered and nothing changed.\r\n    if (!update.force &&\r\n        update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&\r\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&\r\n        display.renderedView == display.view && countDirtyView(cm) == 0)\r\n      return false;\r\n\r\n    if (maybeUpdateLineNumberWidth(cm)) {\r\n      resetView(cm);\r\n      update.dims = getDimensions(cm);\r\n    }\r\n\r\n    // Compute a suitable new viewport (from & to)\r\n    var end = doc.first + doc.size;\r\n    var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);\r\n    var to = Math.min(end, update.visible.to + cm.options.viewportMargin);\r\n    if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);\r\n    if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);\r\n    if (sawCollapsedSpans) {\r\n      from = visualLineNo(cm.doc, from);\r\n      to = visualLineEndNo(cm.doc, to);\r\n    }\r\n\r\n    var different = from != display.viewFrom || to != display.viewTo ||\r\n      display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;\r\n    adjustView(cm, from, to);\r\n\r\n    display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));\r\n    // Position the mover div to align with the current scroll position\r\n    cm.display.mover.style.top = display.viewOffset + \"px\";\r\n\r\n    var toUpdate = countDirtyView(cm);\r\n    if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&\r\n        (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))\r\n      return false;\r\n\r\n    // For big changes, we hide the enclosing element during the\r\n    // update, since that speeds up the operations on most browsers.\r\n    var focused = activeElt();\r\n    if (toUpdate > 4) display.lineDiv.style.display = \"none\";\r\n    patchDisplay(cm, display.updateLineNumbers, update.dims);\r\n    if (toUpdate > 4) display.lineDiv.style.display = \"\";\r\n    display.renderedView = display.view;\r\n    // There might have been a widget with a focused element that got\r\n    // hidden or updated, if so re-focus it.\r\n    if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();\r\n\r\n    // Prevent selection and cursors from interfering with the scroll\r\n    // width and height.\r\n    removeChildren(display.cursorDiv);\r\n    removeChildren(display.selectionDiv);\r\n    display.gutters.style.height = display.sizer.style.minHeight = 0;\r\n\r\n    if (different) {\r\n      display.lastWrapHeight = update.wrapperHeight;\r\n      display.lastWrapWidth = update.wrapperWidth;\r\n      startWorker(cm, 400);\r\n    }\r\n\r\n    display.updateLineNumbers = null;\r\n\r\n    return true;\r\n  }\r\n\r\n  function postUpdateDisplay(cm, update) {\r\n    var viewport = update.viewport;\r\n    for (var first = true;; first = false) {\r\n      if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {\r\n        // Clip forced viewport to actual scrollable area.\r\n        if (viewport && viewport.top != null)\r\n          viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};\r\n        // Updated line heights might result in the drawn area not\r\n        // actually covering the viewport. Keep looping until it does.\r\n        update.visible = visibleLines(cm.display, cm.doc, viewport);\r\n        if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)\r\n          break;\r\n      }\r\n      if (!updateDisplayIfNeeded(cm, update)) break;\r\n      updateHeightsInViewport(cm);\r\n      var barMeasure = measureForScrollbars(cm);\r\n      updateSelection(cm);\r\n      setDocumentHeight(cm, barMeasure);\r\n      updateScrollbars(cm, barMeasure);\r\n    }\r\n\r\n    update.signal(cm, \"update\", cm);\r\n    if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {\r\n      update.signal(cm, \"viewportChange\", cm, cm.display.viewFrom, cm.display.viewTo);\r\n      cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;\r\n    }\r\n  }\r\n\r\n  function updateDisplaySimple(cm, viewport) {\r\n    var update = new DisplayUpdate(cm, viewport);\r\n    if (updateDisplayIfNeeded(cm, update)) {\r\n      updateHeightsInViewport(cm);\r\n      postUpdateDisplay(cm, update);\r\n      var barMeasure = measureForScrollbars(cm);\r\n      updateSelection(cm);\r\n      setDocumentHeight(cm, barMeasure);\r\n      updateScrollbars(cm, barMeasure);\r\n      update.finish();\r\n    }\r\n  }\r\n\r\n  function setDocumentHeight(cm, measure) {\r\n    cm.display.sizer.style.minHeight = measure.docHeight + \"px\";\r\n    var total = measure.docHeight + cm.display.barHeight;\r\n    cm.display.heightForcer.style.top = total + \"px\";\r\n    cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + \"px\";\r\n  }\r\n\r\n  // Read the actual heights of the rendered lines, and update their\r\n  // stored heights to match.\r\n  function updateHeightsInViewport(cm) {\r\n    var display = cm.display;\r\n    var prevBottom = display.lineDiv.offsetTop;\r\n    for (var i = 0; i < display.view.length; i++) {\r\n      var cur = display.view[i], height;\r\n      if (cur.hidden) continue;\r\n      if (ie && ie_version < 8) {\r\n        var bot = cur.node.offsetTop + cur.node.offsetHeight;\r\n        height = bot - prevBottom;\r\n        prevBottom = bot;\r\n      } else {\r\n        var box = cur.node.getBoundingClientRect();\r\n        height = box.bottom - box.top;\r\n      }\r\n      var diff = cur.line.height - height;\r\n      if (height < 2) height = textHeight(display);\r\n      if (diff > .001 || diff < -.001) {\r\n        updateLineHeight(cur.line, height);\r\n        updateWidgetHeight(cur.line);\r\n        if (cur.rest) for (var j = 0; j < cur.rest.length; j++)\r\n          updateWidgetHeight(cur.rest[j]);\r\n      }\r\n    }\r\n  }\r\n\r\n  // Read and store the height of line widgets associated with the\r\n  // given line.\r\n  function updateWidgetHeight(line) {\r\n    if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)\r\n      line.widgets[i].height = line.widgets[i].node.offsetHeight;\r\n  }\r\n\r\n  // Do a bulk-read of the DOM positions and sizes needed to draw the\r\n  // view, so that we don't interleave reading and writing to the DOM.\r\n  function getDimensions(cm) {\r\n    var d = cm.display, left = {}, width = {};\r\n    var gutterLeft = d.gutters.clientLeft;\r\n    for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {\r\n      left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;\r\n      width[cm.options.gutters[i]] = n.clientWidth;\r\n    }\r\n    return {fixedPos: compensateForHScroll(d),\r\n            gutterTotalWidth: d.gutters.offsetWidth,\r\n            gutterLeft: left,\r\n            gutterWidth: width,\r\n            wrapperWidth: d.wrapper.clientWidth};\r\n  }\r\n\r\n  // Sync the actual display DOM structure with display.view, removing\r\n  // nodes for lines that are no longer in view, and creating the ones\r\n  // that are not there yet, and updating the ones that are out of\r\n  // date.\r\n  function patchDisplay(cm, updateNumbersFrom, dims) {\r\n    var display = cm.display, lineNumbers = cm.options.lineNumbers;\r\n    var container = display.lineDiv, cur = container.firstChild;\r\n\r\n    function rm(node) {\r\n      var next = node.nextSibling;\r\n      // Works around a throw-scroll bug in OS X Webkit\r\n      if (webkit && mac && cm.display.currentWheelTarget == node)\r\n        node.style.display = \"none\";\r\n      else\r\n        node.parentNode.removeChild(node);\r\n      return next;\r\n    }\r\n\r\n    var view = display.view, lineN = display.viewFrom;\r\n    // Loop over the elements in the view, syncing cur (the DOM nodes\r\n    // in display.lineDiv) with the view as we go.\r\n    for (var i = 0; i < view.length; i++) {\r\n      var lineView = view[i];\r\n      if (lineView.hidden) {\r\n      } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet\r\n        var node = buildLineElement(cm, lineView, lineN, dims);\r\n        container.insertBefore(node, cur);\r\n      } else { // Already drawn\r\n        while (cur != lineView.node) cur = rm(cur);\r\n        var updateNumber = lineNumbers && updateNumbersFrom != null &&\r\n          updateNumbersFrom <= lineN && lineView.lineNumber;\r\n        if (lineView.changes) {\r\n          if (indexOf(lineView.changes, \"gutter\") > -1) updateNumber = false;\r\n          updateLineForChanges(cm, lineView, lineN, dims);\r\n        }\r\n        if (updateNumber) {\r\n          removeChildren(lineView.lineNumber);\r\n          lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));\r\n        }\r\n        cur = lineView.node.nextSibling;\r\n      }\r\n      lineN += lineView.size;\r\n    }\r\n    while (cur) cur = rm(cur);\r\n  }\r\n\r\n  // When an aspect of a line changes, a string is added to\r\n  // lineView.changes. This updates the relevant part of the line's\r\n  // DOM structure.\r\n  function updateLineForChanges(cm, lineView, lineN, dims) {\r\n    for (var j = 0; j < lineView.changes.length; j++) {\r\n      var type = lineView.changes[j];\r\n      if (type == \"text\") updateLineText(cm, lineView);\r\n      else if (type == \"gutter\") updateLineGutter(cm, lineView, lineN, dims);\r\n      else if (type == \"class\") updateLineClasses(lineView);\r\n      else if (type == \"widget\") updateLineWidgets(cm, lineView, dims);\r\n    }\r\n    lineView.changes = null;\r\n  }\r\n\r\n  // Lines with gutter elements, widgets or a background class need to\r\n  // be wrapped, and have the extra elements added to the wrapper div\r\n  function ensureLineWrapped(lineView) {\r\n    if (lineView.node == lineView.text) {\r\n      lineView.node = elt(\"div\", null, null, \"position: relative\");\r\n      if (lineView.text.parentNode)\r\n        lineView.text.parentNode.replaceChild(lineView.node, lineView.text);\r\n      lineView.node.appendChild(lineView.text);\r\n      if (ie && ie_version < 8) lineView.node.style.zIndex = 2;\r\n    }\r\n    return lineView.node;\r\n  }\r\n\r\n  function updateLineBackground(lineView) {\r\n    var cls = lineView.bgClass ? lineView.bgClass + \" \" + (lineView.line.bgClass || \"\") : lineView.line.bgClass;\r\n    if (cls) cls += \" CodeMirror-linebackground\";\r\n    if (lineView.background) {\r\n      if (cls) lineView.background.className = cls;\r\n      else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }\r\n    } else if (cls) {\r\n      var wrap = ensureLineWrapped(lineView);\r\n      lineView.background = wrap.insertBefore(elt(\"div\", null, cls), wrap.firstChild);\r\n    }\r\n  }\r\n\r\n  // Wrapper around buildLineContent which will reuse the structure\r\n  // in display.externalMeasured when possible.\r\n  function getLineContent(cm, lineView) {\r\n    var ext = cm.display.externalMeasured;\r\n    if (ext && ext.line == lineView.line) {\r\n      cm.display.externalMeasured = null;\r\n      lineView.measure = ext.measure;\r\n      return ext.built;\r\n    }\r\n    return buildLineContent(cm, lineView);\r\n  }\r\n\r\n  // Redraw the line's text. Interacts with the background and text\r\n  // classes because the mode may output tokens that influence these\r\n  // classes.\r\n  function updateLineText(cm, lineView) {\r\n    var cls = lineView.text.className;\r\n    var built = getLineContent(cm, lineView);\r\n    if (lineView.text == lineView.node) lineView.node = built.pre;\r\n    lineView.text.parentNode.replaceChild(built.pre, lineView.text);\r\n    lineView.text = built.pre;\r\n    if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {\r\n      lineView.bgClass = built.bgClass;\r\n      lineView.textClass = built.textClass;\r\n      updateLineClasses(lineView);\r\n    } else if (cls) {\r\n      lineView.text.className = cls;\r\n    }\r\n  }\r\n\r\n  function updateLineClasses(lineView) {\r\n    updateLineBackground(lineView);\r\n    if (lineView.line.wrapClass)\r\n      ensureLineWrapped(lineView).className = lineView.line.wrapClass;\r\n    else if (lineView.node != lineView.text)\r\n      lineView.node.className = \"\";\r\n    var textClass = lineView.textClass ? lineView.textClass + \" \" + (lineView.line.textClass || \"\") : lineView.line.textClass;\r\n    lineView.text.className = textClass || \"\";\r\n  }\r\n\r\n  function updateLineGutter(cm, lineView, lineN, dims) {\r\n    if (lineView.gutter) {\r\n      lineView.node.removeChild(lineView.gutter);\r\n      lineView.gutter = null;\r\n    }\r\n    if (lineView.gutterBackground) {\r\n      lineView.node.removeChild(lineView.gutterBackground);\r\n      lineView.gutterBackground = null;\r\n    }\r\n    if (lineView.line.gutterClass) {\r\n      var wrap = ensureLineWrapped(lineView);\r\n      lineView.gutterBackground = elt(\"div\", null, \"CodeMirror-gutter-background \" + lineView.line.gutterClass,\r\n                                      \"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +\r\n                                      \"px; width: \" + dims.gutterTotalWidth + \"px\");\r\n      wrap.insertBefore(lineView.gutterBackground, lineView.text);\r\n    }\r\n    var markers = lineView.line.gutterMarkers;\r\n    if (cm.options.lineNumbers || markers) {\r\n      var wrap = ensureLineWrapped(lineView);\r\n      var gutterWrap = lineView.gutter = elt(\"div\", null, \"CodeMirror-gutter-wrapper\", \"left: \" +\r\n                                             (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px\");\r\n      cm.display.input.setUneditable(gutterWrap);\r\n      wrap.insertBefore(gutterWrap, lineView.text);\r\n      if (lineView.line.gutterClass)\r\n        gutterWrap.className += \" \" + lineView.line.gutterClass;\r\n      if (cm.options.lineNumbers && (!markers || !markers[\"CodeMirror-linenumbers\"]))\r\n        lineView.lineNumber = gutterWrap.appendChild(\r\n          elt(\"div\", lineNumberFor(cm.options, lineN),\r\n              \"CodeMirror-linenumber CodeMirror-gutter-elt\",\r\n              \"left: \" + dims.gutterLeft[\"CodeMirror-linenumbers\"] + \"px; width: \"\r\n              + cm.display.lineNumInnerWidth + \"px\"));\r\n      if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {\r\n        var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];\r\n        if (found)\r\n          gutterWrap.appendChild(elt(\"div\", [found], \"CodeMirror-gutter-elt\", \"left: \" +\r\n                                     dims.gutterLeft[id] + \"px; width: \" + dims.gutterWidth[id] + \"px\"));\r\n      }\r\n    }\r\n  }\r\n\r\n  function updateLineWidgets(cm, lineView, dims) {\r\n    if (lineView.alignable) lineView.alignable = null;\r\n    for (var node = lineView.node.firstChild, next; node; node = next) {\r\n      var next = node.nextSibling;\r\n      if (node.className == \"CodeMirror-linewidget\")\r\n        lineView.node.removeChild(node);\r\n    }\r\n    insertLineWidgets(cm, lineView, dims);\r\n  }\r\n\r\n  // Build a line's DOM representation from scratch\r\n  function buildLineElement(cm, lineView, lineN, dims) {\r\n    var built = getLineContent(cm, lineView);\r\n    lineView.text = lineView.node = built.pre;\r\n    if (built.bgClass) lineView.bgClass = built.bgClass;\r\n    if (built.textClass) lineView.textClass = built.textClass;\r\n\r\n    updateLineClasses(lineView);\r\n    updateLineGutter(cm, lineView, lineN, dims);\r\n    insertLineWidgets(cm, lineView, dims);\r\n    return lineView.node;\r\n  }\r\n\r\n  // A lineView may contain multiple logical lines (when merged by\r\n  // collapsed spans). The widgets for all of them need to be drawn.\r\n  function insertLineWidgets(cm, lineView, dims) {\r\n    insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);\r\n    if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)\r\n      insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);\r\n  }\r\n\r\n  function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {\r\n    if (!line.widgets) return;\r\n    var wrap = ensureLineWrapped(lineView);\r\n    for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\r\n      var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\");\r\n      if (!widget.handleMouseEvents) node.setAttribute(\"cm-ignore-events\", \"true\");\r\n      positionLineWidget(widget, node, lineView, dims);\r\n      cm.display.input.setUneditable(node);\r\n      if (allowAbove && widget.above)\r\n        wrap.insertBefore(node, lineView.gutter || lineView.text);\r\n      else\r\n        wrap.appendChild(node);\r\n      signalLater(widget, \"redraw\");\r\n    }\r\n  }\r\n\r\n  function positionLineWidget(widget, node, lineView, dims) {\r\n    if (widget.noHScroll) {\r\n      (lineView.alignable || (lineView.alignable = [])).push(node);\r\n      var width = dims.wrapperWidth;\r\n      node.style.left = dims.fixedPos + \"px\";\r\n      if (!widget.coverGutter) {\r\n        width -= dims.gutterTotalWidth;\r\n        node.style.paddingLeft = dims.gutterTotalWidth + \"px\";\r\n      }\r\n      node.style.width = width + \"px\";\r\n    }\r\n    if (widget.coverGutter) {\r\n      node.style.zIndex = 5;\r\n      node.style.position = \"relative\";\r\n      if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + \"px\";\r\n    }\r\n  }\r\n\r\n  // POSITION OBJECT\r\n\r\n  // A Pos instance represents a position within the text.\r\n  var Pos = CodeMirror.Pos = function(line, ch) {\r\n    if (!(this instanceof Pos)) return new Pos(line, ch);\r\n    this.line = line; this.ch = ch;\r\n  };\r\n\r\n  // Compare two positions, return 0 if they are the same, a negative\r\n  // number when a is less, and a positive number otherwise.\r\n  var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };\r\n\r\n  function copyPos(x) {return Pos(x.line, x.ch);}\r\n  function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }\r\n  function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }\r\n\r\n  // INPUT HANDLING\r\n\r\n  function ensureFocus(cm) {\r\n    if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }\r\n  }\r\n\r\n  function isReadOnly(cm) {\r\n    return cm.options.readOnly || cm.doc.cantEdit;\r\n  }\r\n\r\n  // This will be set to an array of strings when copying, so that,\r\n  // when pasting, we know what kind of selections the copied text\r\n  // was made out of.\r\n  var lastCopied = null;\r\n\r\n  function applyTextInput(cm, inserted, deleted, sel, origin) {\r\n    var doc = cm.doc;\r\n    cm.display.shift = false;\r\n    if (!sel) sel = doc.sel;\r\n\r\n    var paste = cm.state.pasteIncoming || origin == \"paste\";\r\n    var textLines = doc.splitLines(inserted), multiPaste = null;\r\n    // When pasing N lines into N selections, insert one line per selection\r\n    if (paste && sel.ranges.length > 1) {\r\n      if (lastCopied && lastCopied.join(\"\\n\") == inserted) {\r\n        if (sel.ranges.length % lastCopied.length == 0) {\r\n          multiPaste = [];\r\n          for (var i = 0; i < lastCopied.length; i++)\r\n            multiPaste.push(doc.splitLines(lastCopied[i]));\r\n        }\r\n      } else if (textLines.length == sel.ranges.length) {\r\n        multiPaste = map(textLines, function(l) { return [l]; });\r\n      }\r\n    }\r\n\r\n    // Normal behavior is to insert the new text into every selection\r\n    for (var i = sel.ranges.length - 1; i >= 0; i--) {\r\n      var range = sel.ranges[i];\r\n      var from = range.from(), to = range.to();\r\n      if (range.empty()) {\r\n        if (deleted && deleted > 0) // Handle deletion\r\n          from = Pos(from.line, from.ch - deleted);\r\n        else if (cm.state.overwrite && !paste) // Handle overwrite\r\n          to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));\r\n      }\r\n      var updateInput = cm.curOp.updateInput;\r\n      var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,\r\n                         origin: origin || (paste ? \"paste\" : cm.state.cutIncoming ? \"cut\" : \"+input\")};\r\n      makeChange(cm.doc, changeEvent);\r\n      signalLater(cm, \"inputRead\", cm, changeEvent);\r\n    }\r\n    if (inserted && !paste)\r\n      triggerElectric(cm, inserted);\r\n\r\n    ensureCursorVisible(cm);\r\n    cm.curOp.updateInput = updateInput;\r\n    cm.curOp.typing = true;\r\n    cm.state.pasteIncoming = cm.state.cutIncoming = false;\r\n  }\r\n\r\n  function handlePaste(e, cm) {\r\n    var pasted = e.clipboardData && e.clipboardData.getData(\"text/plain\");\r\n    if (pasted) {\r\n      e.preventDefault();\r\n      if (!isReadOnly(cm) && !cm.options.disableInput)\r\n        runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, \"paste\"); });\r\n      return true;\r\n    }\r\n  }\r\n\r\n  function triggerElectric(cm, inserted) {\r\n    // When an 'electric' character is inserted, immediately trigger a reindent\r\n    if (!cm.options.electricChars || !cm.options.smartIndent) return;\r\n    var sel = cm.doc.sel;\r\n\r\n    for (var i = sel.ranges.length - 1; i >= 0; i--) {\r\n      var range = sel.ranges[i];\r\n      if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;\r\n      var mode = cm.getModeAt(range.head);\r\n      var indented = false;\r\n      if (mode.electricChars) {\r\n        for (var j = 0; j < mode.electricChars.length; j++)\r\n          if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {\r\n            indented = indentLine(cm, range.head.line, \"smart\");\r\n            break;\r\n          }\r\n      } else if (mode.electricInput) {\r\n        if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))\r\n          indented = indentLine(cm, range.head.line, \"smart\");\r\n      }\r\n      if (indented) signalLater(cm, \"electricInput\", cm, range.head.line);\r\n    }\r\n  }\r\n\r\n  function copyableRanges(cm) {\r\n    var text = [], ranges = [];\r\n    for (var i = 0; i < cm.doc.sel.ranges.length; i++) {\r\n      var line = cm.doc.sel.ranges[i].head.line;\r\n      var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};\r\n      ranges.push(lineRange);\r\n      text.push(cm.getRange(lineRange.anchor, lineRange.head));\r\n    }\r\n    return {text: text, ranges: ranges};\r\n  }\r\n\r\n  function disableBrowserMagic(field) {\r\n    field.setAttribute(\"autocorrect\", \"off\");\r\n    field.setAttribute(\"autocapitalize\", \"off\");\r\n    field.setAttribute(\"spellcheck\", \"false\");\r\n  }\r\n\r\n  // TEXTAREA INPUT STYLE\r\n\r\n  function TextareaInput(cm) {\r\n    this.cm = cm;\r\n    // See input.poll and input.reset\r\n    this.prevInput = \"\";\r\n\r\n    // Flag that indicates whether we expect input to appear real soon\r\n    // now (after some event like 'keypress' or 'input') and are\r\n    // polling intensively.\r\n    this.pollingFast = false;\r\n    // Self-resetting timeout for the poller\r\n    this.polling = new Delayed();\r\n    // Tracks when input.reset has punted to just putting a short\r\n    // string into the textarea instead of the full selection.\r\n    this.inaccurateSelection = false;\r\n    // Used to work around IE issue with selection being forgotten when focus moves away from textarea\r\n    this.hasSelection = false;\r\n    this.composing = null;\r\n  };\r\n\r\n  function hiddenTextarea() {\r\n    var te = elt(\"textarea\", null, null, \"position: absolute; padding: 0; width: 1px; height: 1em; outline: none\");\r\n    var div = elt(\"div\", [te], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\");\r\n    // The textarea is kept positioned near the cursor to prevent the\r\n    // fact that it'll be scrolled into view on input from scrolling\r\n    // our fake cursor out of view. On webkit, when wrap=off, paste is\r\n    // very slow. So make the area wide instead.\r\n    if (webkit) te.style.width = \"1000px\";\r\n    else te.setAttribute(\"wrap\", \"off\");\r\n    // If border: 0; -- iOS fails to open keyboard (issue #1287)\r\n    if (ios) te.style.border = \"1px solid black\";\r\n    disableBrowserMagic(te);\r\n    return div;\r\n  }\r\n\r\n  TextareaInput.prototype = copyObj({\r\n    init: function(display) {\r\n      var input = this, cm = this.cm;\r\n\r\n      // Wraps and hides input textarea\r\n      var div = this.wrapper = hiddenTextarea();\r\n      // The semihidden textarea that is focused when the editor is\r\n      // focused, and receives input.\r\n      var te = this.textarea = div.firstChild;\r\n      display.wrapper.insertBefore(div, display.wrapper.firstChild);\r\n\r\n      // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)\r\n      if (ios) te.style.width = \"0px\";\r\n\r\n      on(te, \"input\", function() {\r\n        if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;\r\n        input.poll();\r\n      });\r\n\r\n      on(te, \"paste\", function(e) {\r\n        if (handlePaste(e, cm)) return true;\r\n\r\n        cm.state.pasteIncoming = true;\r\n        input.fastPoll();\r\n      });\r\n\r\n      function prepareCopyCut(e) {\r\n        if (cm.somethingSelected()) {\r\n          lastCopied = cm.getSelections();\r\n          if (input.inaccurateSelection) {\r\n            input.prevInput = \"\";\r\n            input.inaccurateSelection = false;\r\n            te.value = lastCopied.join(\"\\n\");\r\n            selectInput(te);\r\n          }\r\n        } else if (!cm.options.lineWiseCopyCut) {\r\n          return;\r\n        } else {\r\n          var ranges = copyableRanges(cm);\r\n          lastCopied = ranges.text;\r\n          if (e.type == \"cut\") {\r\n            cm.setSelections(ranges.ranges, null, sel_dontScroll);\r\n          } else {\r\n            input.prevInput = \"\";\r\n            te.value = ranges.text.join(\"\\n\");\r\n            selectInput(te);\r\n          }\r\n        }\r\n        if (e.type == \"cut\") cm.state.cutIncoming = true;\r\n      }\r\n      on(te, \"cut\", prepareCopyCut);\r\n      on(te, \"copy\", prepareCopyCut);\r\n\r\n      on(display.scroller, \"paste\", function(e) {\r\n        if (eventInWidget(display, e)) return;\r\n        cm.state.pasteIncoming = true;\r\n        input.focus();\r\n      });\r\n\r\n      // Prevent normal selection in the editor (we handle our own)\r\n      on(display.lineSpace, \"selectstart\", function(e) {\r\n        if (!eventInWidget(display, e)) e_preventDefault(e);\r\n      });\r\n\r\n      on(te, \"compositionstart\", function() {\r\n        var start = cm.getCursor(\"from\");\r\n        if (input.composing) input.composing.range.clear()\r\n        input.composing = {\r\n          start: start,\r\n          range: cm.markText(start, cm.getCursor(\"to\"), {className: \"CodeMirror-composing\"})\r\n        };\r\n      });\r\n      on(te, \"compositionend\", function() {\r\n        if (input.composing) {\r\n          input.poll();\r\n          input.composing.range.clear();\r\n          input.composing = null;\r\n        }\r\n      });\r\n    },\r\n\r\n    prepareSelection: function() {\r\n      // Redraw the selection and/or cursor\r\n      var cm = this.cm, display = cm.display, doc = cm.doc;\r\n      var result = prepareSelection(cm);\r\n\r\n      // Move the hidden textarea near the cursor to prevent scrolling artifacts\r\n      if (cm.options.moveInputWithCursor) {\r\n        var headPos = cursorCoords(cm, doc.sel.primary().head, \"div\");\r\n        var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();\r\n        result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\r\n                                            headPos.top + lineOff.top - wrapOff.top));\r\n        result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\r\n                                             headPos.left + lineOff.left - wrapOff.left));\r\n      }\r\n\r\n      return result;\r\n    },\r\n\r\n    showSelection: function(drawn) {\r\n      var cm = this.cm, display = cm.display;\r\n      removeChildrenAndAdd(display.cursorDiv, drawn.cursors);\r\n      removeChildrenAndAdd(display.selectionDiv, drawn.selection);\r\n      if (drawn.teTop != null) {\r\n        this.wrapper.style.top = drawn.teTop + \"px\";\r\n        this.wrapper.style.left = drawn.teLeft + \"px\";\r\n      }\r\n    },\r\n\r\n    // Reset the input to correspond to the selection (or to be empty,\r\n    // when not typing and nothing is selected)\r\n    reset: function(typing) {\r\n      if (this.contextMenuPending) return;\r\n      var minimal, selected, cm = this.cm, doc = cm.doc;\r\n      if (cm.somethingSelected()) {\r\n        this.prevInput = \"\";\r\n        var range = doc.sel.primary();\r\n        minimal = hasCopyEvent &&\r\n          (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);\r\n        var content = minimal ? \"-\" : selected || cm.getSelection();\r\n        this.textarea.value = content;\r\n        if (cm.state.focused) selectInput(this.textarea);\r\n        if (ie && ie_version >= 9) this.hasSelection = content;\r\n      } else if (!typing) {\r\n        this.prevInput = this.textarea.value = \"\";\r\n        if (ie && ie_version >= 9) this.hasSelection = null;\r\n      }\r\n      this.inaccurateSelection = minimal;\r\n    },\r\n\r\n    getField: function() { return this.textarea; },\r\n\r\n    supportsTouch: function() { return false; },\r\n\r\n    focus: function() {\r\n      if (this.cm.options.readOnly != \"nocursor\" && (!mobile || activeElt() != this.textarea)) {\r\n        try { this.textarea.focus(); }\r\n        catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM\r\n      }\r\n    },\r\n\r\n    blur: function() { this.textarea.blur(); },\r\n\r\n    resetPosition: function() {\r\n      this.wrapper.style.top = this.wrapper.style.left = 0;\r\n    },\r\n\r\n    receivedFocus: function() { this.slowPoll(); },\r\n\r\n    // Poll for input changes, using the normal rate of polling. This\r\n    // runs as long as the editor is focused.\r\n    slowPoll: function() {\r\n      var input = this;\r\n      if (input.pollingFast) return;\r\n      input.polling.set(this.cm.options.pollInterval, function() {\r\n        input.poll();\r\n        if (input.cm.state.focused) input.slowPoll();\r\n      });\r\n    },\r\n\r\n    // When an event has just come in that is likely to add or change\r\n    // something in the input textarea, we poll faster, to ensure that\r\n    // the change appears on the screen quickly.\r\n    fastPoll: function() {\r\n      var missed = false, input = this;\r\n      input.pollingFast = true;\r\n      function p() {\r\n        var changed = input.poll();\r\n        if (!changed && !missed) {missed = true; input.polling.set(60, p);}\r\n        else {input.pollingFast = false; input.slowPoll();}\r\n      }\r\n      input.polling.set(20, p);\r\n    },\r\n\r\n    // Read input from the textarea, and update the document to match.\r\n    // When something is selected, it is present in the textarea, and\r\n    // selected (unless it is huge, in which case a placeholder is\r\n    // used). When nothing is selected, the cursor sits after previously\r\n    // seen text (can be empty), which is stored in prevInput (we must\r\n    // not reset the textarea when typing, because that breaks IME).\r\n    poll: function() {\r\n      var cm = this.cm, input = this.textarea, prevInput = this.prevInput;\r\n      // Since this is called a *lot*, try to bail out as cheaply as\r\n      // possible when it is clear that nothing happened. hasSelection\r\n      // will be the case when there is a lot of text in the textarea,\r\n      // in which case reading its value would be expensive.\r\n      if (this.contextMenuPending || !cm.state.focused ||\r\n          (hasSelection(input) && !prevInput && !this.composing) ||\r\n          isReadOnly(cm) || cm.options.disableInput || cm.state.keySeq)\r\n        return false;\r\n\r\n      var text = input.value;\r\n      // If nothing changed, bail.\r\n      if (text == prevInput && !cm.somethingSelected()) return false;\r\n      // Work around nonsensical selection resetting in IE9/10, and\r\n      // inexplicable appearance of private area unicode characters on\r\n      // some key combos in Mac (#2689).\r\n      if (ie && ie_version >= 9 && this.hasSelection === text ||\r\n          mac && /[\\uf700-\\uf7ff]/.test(text)) {\r\n        cm.display.input.reset();\r\n        return false;\r\n      }\r\n\r\n      if (cm.doc.sel == cm.display.selForContextMenu) {\r\n        var first = text.charCodeAt(0);\r\n        if (first == 0x200b && !prevInput) prevInput = \"\\u200b\";\r\n        if (first == 0x21da) { this.reset(); return this.cm.execCommand(\"undo\"); }\r\n      }\r\n      // Find the part of the input that is actually new\r\n      var same = 0, l = Math.min(prevInput.length, text.length);\r\n      while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;\r\n\r\n      var self = this;\r\n      runInOp(cm, function() {\r\n        applyTextInput(cm, text.slice(same), prevInput.length - same,\r\n                       null, self.composing ? \"*compose\" : null);\r\n\r\n        // Don't leave long text in the textarea, since it makes further polling slow\r\n        if (text.length > 1000 || text.indexOf(\"\\n\") > -1) input.value = self.prevInput = \"\";\r\n        else self.prevInput = text;\r\n\r\n        if (self.composing) {\r\n          self.composing.range.clear();\r\n          self.composing.range = cm.markText(self.composing.start, cm.getCursor(\"to\"),\r\n                                             {className: \"CodeMirror-composing\"});\r\n        }\r\n      });\r\n      return true;\r\n    },\r\n\r\n    ensurePolled: function() {\r\n      if (this.pollingFast && this.poll()) this.pollingFast = false;\r\n    },\r\n\r\n    onKeyPress: function() {\r\n      if (ie && ie_version >= 9) this.hasSelection = null;\r\n      this.fastPoll();\r\n    },\r\n\r\n    onContextMenu: function(e) {\r\n      var input = this, cm = input.cm, display = cm.display, te = input.textarea;\r\n      var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;\r\n      if (!pos || presto) return; // Opera is difficult.\r\n\r\n      // Reset the current text selection only if the click is done outside of the selection\r\n      // and 'resetSelectionOnContextMenu' option is true.\r\n      var reset = cm.options.resetSelectionOnContextMenu;\r\n      if (reset && cm.doc.sel.contains(pos) == -1)\r\n        operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);\r\n\r\n      var oldCSS = te.style.cssText;\r\n      input.wrapper.style.position = \"absolute\";\r\n      te.style.cssText = \"position: fixed; width: 30px; height: 30px; top: \" + (e.clientY - 5) +\r\n        \"px; left: \" + (e.clientX - 5) + \"px; z-index: 1000; background: \" +\r\n        (ie ? \"rgba(255, 255, 255, .05)\" : \"transparent\") +\r\n        \"; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\";\r\n      if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)\r\n      display.input.focus();\r\n      if (webkit) window.scrollTo(null, oldScrollY);\r\n      display.input.reset();\r\n      // Adds \"Select all\" to context menu in FF\r\n      if (!cm.somethingSelected()) te.value = input.prevInput = \" \";\r\n      input.contextMenuPending = true;\r\n      display.selForContextMenu = cm.doc.sel;\r\n      clearTimeout(display.detectingSelectAll);\r\n\r\n      // Select-all will be greyed out if there's nothing to select, so\r\n      // this adds a zero-width space so that we can later check whether\r\n      // it got selected.\r\n      function prepareSelectAllHack() {\r\n        if (te.selectionStart != null) {\r\n          var selected = cm.somethingSelected();\r\n          var extval = \"\\u200b\" + (selected ? te.value : \"\");\r\n          te.value = \"\\u21da\"; // Used to catch context-menu undo\r\n          te.value = extval;\r\n          input.prevInput = selected ? \"\" : \"\\u200b\";\r\n          te.selectionStart = 1; te.selectionEnd = extval.length;\r\n          // Re-set this, in case some other handler touched the\r\n          // selection in the meantime.\r\n          display.selForContextMenu = cm.doc.sel;\r\n        }\r\n      }\r\n      function rehide() {\r\n        input.contextMenuPending = false;\r\n        input.wrapper.style.position = \"relative\";\r\n        te.style.cssText = oldCSS;\r\n        if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);\r\n\r\n        // Try to detect the user choosing select-all\r\n        if (te.selectionStart != null) {\r\n          if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();\r\n          var i = 0, poll = function() {\r\n            if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&\r\n                te.selectionEnd > 0 && input.prevInput == \"\\u200b\")\r\n              operation(cm, commands.selectAll)(cm);\r\n            else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);\r\n            else display.input.reset();\r\n          };\r\n          display.detectingSelectAll = setTimeout(poll, 200);\r\n        }\r\n      }\r\n\r\n      if (ie && ie_version >= 9) prepareSelectAllHack();\r\n      if (captureRightClick) {\r\n        e_stop(e);\r\n        var mouseup = function() {\r\n          off(window, \"mouseup\", mouseup);\r\n          setTimeout(rehide, 20);\r\n        };\r\n        on(window, \"mouseup\", mouseup);\r\n      } else {\r\n        setTimeout(rehide, 50);\r\n      }\r\n    },\r\n\r\n    readOnlyChanged: function(val) {\r\n      if (!val) this.reset();\r\n    },\r\n\r\n    setUneditable: nothing,\r\n\r\n    needsContentAttribute: false\r\n  }, TextareaInput.prototype);\r\n\r\n  // CONTENTEDITABLE INPUT STYLE\r\n\r\n  function ContentEditableInput(cm) {\r\n    this.cm = cm;\r\n    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;\r\n    this.polling = new Delayed();\r\n    this.gracePeriod = false;\r\n  }\r\n\r\n  ContentEditableInput.prototype = copyObj({\r\n    init: function(display) {\r\n      var input = this, cm = input.cm;\r\n      var div = input.div = display.lineDiv;\r\n      disableBrowserMagic(div);\r\n\r\n      on(div, \"paste\", function(e) { handlePaste(e, cm); })\r\n\r\n      on(div, \"compositionstart\", function(e) {\r\n        var data = e.data;\r\n        input.composing = {sel: cm.doc.sel, data: data, startData: data};\r\n        if (!data) return;\r\n        var prim = cm.doc.sel.primary();\r\n        var line = cm.getLine(prim.head.line);\r\n        var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));\r\n        if (found > -1 && found <= prim.head.ch)\r\n          input.composing.sel = simpleSelection(Pos(prim.head.line, found),\r\n                                                Pos(prim.head.line, found + data.length));\r\n      });\r\n      on(div, \"compositionupdate\", function(e) {\r\n        input.composing.data = e.data;\r\n      });\r\n      on(div, \"compositionend\", function(e) {\r\n        var ours = input.composing;\r\n        if (!ours) return;\r\n        if (e.data != ours.startData && !/\\u200b/.test(e.data))\r\n          ours.data = e.data;\r\n        // Need a small delay to prevent other code (input event,\r\n        // selection polling) from doing damage when fired right after\r\n        // compositionend.\r\n        setTimeout(function() {\r\n          if (!ours.handled)\r\n            input.applyComposition(ours);\r\n          if (input.composing == ours)\r\n            input.composing = null;\r\n        }, 50);\r\n      });\r\n\r\n      on(div, \"touchstart\", function() {\r\n        input.forceCompositionEnd();\r\n      });\r\n\r\n      on(div, \"input\", function() {\r\n        if (input.composing) return;\r\n        if (isReadOnly(cm) || !input.pollContent())\r\n          runInOp(input.cm, function() {regChange(cm);});\r\n      });\r\n\r\n      function onCopyCut(e) {\r\n        if (cm.somethingSelected()) {\r\n          lastCopied = cm.getSelections();\r\n          if (e.type == \"cut\") cm.replaceSelection(\"\", null, \"cut\");\r\n        } else if (!cm.options.lineWiseCopyCut) {\r\n          return;\r\n        } else {\r\n          var ranges = copyableRanges(cm);\r\n          lastCopied = ranges.text;\r\n          if (e.type == \"cut\") {\r\n            cm.operation(function() {\r\n              cm.setSelections(ranges.ranges, 0, sel_dontScroll);\r\n              cm.replaceSelection(\"\", null, \"cut\");\r\n            });\r\n          }\r\n        }\r\n        // iOS exposes the clipboard API, but seems to discard content inserted into it\r\n        if (e.clipboardData && !ios) {\r\n          e.preventDefault();\r\n          e.clipboardData.clearData();\r\n          e.clipboardData.setData(\"text/plain\", lastCopied.join(\"\\n\"));\r\n        } else {\r\n          // Old-fashioned briefly-focus-a-textarea hack\r\n          var kludge = hiddenTextarea(), te = kludge.firstChild;\r\n          cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);\r\n          te.value = lastCopied.join(\"\\n\");\r\n          var hadFocus = document.activeElement;\r\n          selectInput(te);\r\n          setTimeout(function() {\r\n            cm.display.lineSpace.removeChild(kludge);\r\n            hadFocus.focus();\r\n          }, 50);\r\n        }\r\n      }\r\n      on(div, \"copy\", onCopyCut);\r\n      on(div, \"cut\", onCopyCut);\r\n    },\r\n\r\n    prepareSelection: function() {\r\n      var result = prepareSelection(this.cm, false);\r\n      result.focus = this.cm.state.focused;\r\n      return result;\r\n    },\r\n\r\n    showSelection: function(info) {\r\n      if (!info || !this.cm.display.view.length) return;\r\n      if (info.focus) this.showPrimarySelection();\r\n      this.showMultipleSelections(info);\r\n    },\r\n\r\n    showPrimarySelection: function() {\r\n      var sel = window.getSelection(), prim = this.cm.doc.sel.primary();\r\n      var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);\r\n      var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);\r\n      if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&\r\n          cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&\r\n          cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)\r\n        return;\r\n\r\n      var start = posToDOM(this.cm, prim.from());\r\n      var end = posToDOM(this.cm, prim.to());\r\n      if (!start && !end) return;\r\n\r\n      var view = this.cm.display.view;\r\n      var old = sel.rangeCount && sel.getRangeAt(0);\r\n      if (!start) {\r\n        start = {node: view[0].measure.map[2], offset: 0};\r\n      } else if (!end) { // FIXME dangerously hacky\r\n        var measure = view[view.length - 1].measure;\r\n        var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;\r\n        end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};\r\n      }\r\n\r\n      try { var rng = range(start.node, start.offset, end.offset, end.node); }\r\n      catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible\r\n      if (rng) {\r\n        sel.removeAllRanges();\r\n        sel.addRange(rng);\r\n        if (old && sel.anchorNode == null) sel.addRange(old);\r\n        else if (gecko) this.startGracePeriod();\r\n      }\r\n      this.rememberSelection();\r\n    },\r\n\r\n    startGracePeriod: function() {\r\n      var input = this;\r\n      clearTimeout(this.gracePeriod);\r\n      this.gracePeriod = setTimeout(function() {\r\n        input.gracePeriod = false;\r\n        if (input.selectionChanged())\r\n          input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });\r\n      }, 20);\r\n    },\r\n\r\n    showMultipleSelections: function(info) {\r\n      removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);\r\n      removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);\r\n    },\r\n\r\n    rememberSelection: function() {\r\n      var sel = window.getSelection();\r\n      this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;\r\n      this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;\r\n    },\r\n\r\n    selectionInEditor: function() {\r\n      var sel = window.getSelection();\r\n      if (!sel.rangeCount) return false;\r\n      var node = sel.getRangeAt(0).commonAncestorContainer;\r\n      return contains(this.div, node);\r\n    },\r\n\r\n    focus: function() {\r\n      if (this.cm.options.readOnly != \"nocursor\") this.div.focus();\r\n    },\r\n    blur: function() { this.div.blur(); },\r\n    getField: function() { return this.div; },\r\n\r\n    supportsTouch: function() { return true; },\r\n\r\n    receivedFocus: function() {\r\n      var input = this;\r\n      if (this.selectionInEditor())\r\n        this.pollSelection();\r\n      else\r\n        runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });\r\n\r\n      function poll() {\r\n        if (input.cm.state.focused) {\r\n          input.pollSelection();\r\n          input.polling.set(input.cm.options.pollInterval, poll);\r\n        }\r\n      }\r\n      this.polling.set(this.cm.options.pollInterval, poll);\r\n    },\r\n\r\n    selectionChanged: function() {\r\n      var sel = window.getSelection();\r\n      return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||\r\n        sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;\r\n    },\r\n\r\n    pollSelection: function() {\r\n      if (!this.composing && !this.gracePeriod && this.selectionChanged()) {\r\n        var sel = window.getSelection(), cm = this.cm;\r\n        this.rememberSelection();\r\n        var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);\r\n        var head = domToPos(cm, sel.focusNode, sel.focusOffset);\r\n        if (anchor && head) runInOp(cm, function() {\r\n          setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);\r\n          if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;\r\n        });\r\n      }\r\n    },\r\n\r\n    pollContent: function() {\r\n      var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();\r\n      var from = sel.from(), to = sel.to();\r\n      if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;\r\n\r\n      var fromIndex;\r\n      if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {\r\n        var fromLine = lineNo(display.view[0].line);\r\n        var fromNode = display.view[0].node;\r\n      } else {\r\n        var fromLine = lineNo(display.view[fromIndex].line);\r\n        var fromNode = display.view[fromIndex - 1].node.nextSibling;\r\n      }\r\n      var toIndex = findViewIndex(cm, to.line);\r\n      if (toIndex == display.view.length - 1) {\r\n        var toLine = display.viewTo - 1;\r\n        var toNode = display.lineDiv.lastChild;\r\n      } else {\r\n        var toLine = lineNo(display.view[toIndex + 1].line) - 1;\r\n        var toNode = display.view[toIndex + 1].node.previousSibling;\r\n      }\r\n\r\n      var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));\r\n      var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));\r\n      while (newText.length > 1 && oldText.length > 1) {\r\n        if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }\r\n        else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }\r\n        else break;\r\n      }\r\n\r\n      var cutFront = 0, cutEnd = 0;\r\n      var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);\r\n      while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))\r\n        ++cutFront;\r\n      var newBot = lst(newText), oldBot = lst(oldText);\r\n      var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),\r\n                               oldBot.length - (oldText.length == 1 ? cutFront : 0));\r\n      while (cutEnd < maxCutEnd &&\r\n             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))\r\n        ++cutEnd;\r\n\r\n      newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);\r\n      newText[0] = newText[0].slice(cutFront);\r\n\r\n      var chFrom = Pos(fromLine, cutFront);\r\n      var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);\r\n      if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {\r\n        replaceRange(cm.doc, newText, chFrom, chTo, \"+input\");\r\n        return true;\r\n      }\r\n    },\r\n\r\n    ensurePolled: function() {\r\n      this.forceCompositionEnd();\r\n    },\r\n    reset: function() {\r\n      this.forceCompositionEnd();\r\n    },\r\n    forceCompositionEnd: function() {\r\n      if (!this.composing || this.composing.handled) return;\r\n      this.applyComposition(this.composing);\r\n      this.composing.handled = true;\r\n      this.div.blur();\r\n      this.div.focus();\r\n    },\r\n    applyComposition: function(composing) {\r\n      if (isReadOnly(this.cm))\r\n        operation(this.cm, regChange)(this.cm)\r\n      else if (composing.data && composing.data != composing.startData)\r\n        operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);\r\n    },\r\n\r\n    setUneditable: function(node) {\r\n      node.contentEditable = \"false\"\r\n    },\r\n\r\n    onKeyPress: function(e) {\r\n      e.preventDefault();\r\n      if (!isReadOnly(this.cm))\r\n        operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);\r\n    },\r\n\r\n    readOnlyChanged: function(val) {\r\n      this.div.contentEditable = String(val != \"nocursor\")\r\n    },\r\n\r\n    onContextMenu: nothing,\r\n    resetPosition: nothing,\r\n\r\n    needsContentAttribute: true\r\n  }, ContentEditableInput.prototype);\r\n\r\n  function posToDOM(cm, pos) {\r\n    var view = findViewForLine(cm, pos.line);\r\n    if (!view || view.hidden) return null;\r\n    var line = getLine(cm.doc, pos.line);\r\n    var info = mapFromLineView(view, line, pos.line);\r\n\r\n    var order = getOrder(line), side = \"left\";\r\n    if (order) {\r\n      var partPos = getBidiPartAt(order, pos.ch);\r\n      side = partPos % 2 ? \"right\" : \"left\";\r\n    }\r\n    var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);\r\n    result.offset = result.collapse == \"right\" ? result.end : result.start;\r\n    return result;\r\n  }\r\n\r\n  function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }\r\n\r\n  function domToPos(cm, node, offset) {\r\n    var lineNode;\r\n    if (node == cm.display.lineDiv) {\r\n      lineNode = cm.display.lineDiv.childNodes[offset];\r\n      if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);\r\n      node = null; offset = 0;\r\n    } else {\r\n      for (lineNode = node;; lineNode = lineNode.parentNode) {\r\n        if (!lineNode || lineNode == cm.display.lineDiv) return null;\r\n        if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;\r\n      }\r\n    }\r\n    for (var i = 0; i < cm.display.view.length; i++) {\r\n      var lineView = cm.display.view[i];\r\n      if (lineView.node == lineNode)\r\n        return locateNodeInLineView(lineView, node, offset);\r\n    }\r\n  }\r\n\r\n  function locateNodeInLineView(lineView, node, offset) {\r\n    var wrapper = lineView.text.firstChild, bad = false;\r\n    if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);\r\n    if (node == wrapper) {\r\n      bad = true;\r\n      node = wrapper.childNodes[offset];\r\n      offset = 0;\r\n      if (!node) {\r\n        var line = lineView.rest ? lst(lineView.rest) : lineView.line;\r\n        return badPos(Pos(lineNo(line), line.text.length), bad);\r\n      }\r\n    }\r\n\r\n    var textNode = node.nodeType == 3 ? node : null, topNode = node;\r\n    if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {\r\n      textNode = node.firstChild;\r\n      if (offset) offset = textNode.nodeValue.length;\r\n    }\r\n    while (topNode.parentNode != wrapper) topNode = topNode.parentNode;\r\n    var measure = lineView.measure, maps = measure.maps;\r\n\r\n    function find(textNode, topNode, offset) {\r\n      for (var i = -1; i < (maps ? maps.length : 0); i++) {\r\n        var map = i < 0 ? measure.map : maps[i];\r\n        for (var j = 0; j < map.length; j += 3) {\r\n          var curNode = map[j + 2];\r\n          if (curNode == textNode || curNode == topNode) {\r\n            var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);\r\n            var ch = map[j] + offset;\r\n            if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];\r\n            return Pos(line, ch);\r\n          }\r\n        }\r\n      }\r\n    }\r\n    var found = find(textNode, topNode, offset);\r\n    if (found) return badPos(found, bad);\r\n\r\n    // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems\r\n    for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {\r\n      found = find(after, after.firstChild, 0);\r\n      if (found)\r\n        return badPos(Pos(found.line, found.ch - dist), bad);\r\n      else\r\n        dist += after.textContent.length;\r\n    }\r\n    for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {\r\n      found = find(before, before.firstChild, -1);\r\n      if (found)\r\n        return badPos(Pos(found.line, found.ch + dist), bad);\r\n      else\r\n        dist += after.textContent.length;\r\n    }\r\n  }\r\n\r\n  function domTextBetween(cm, from, to, fromLine, toLine) {\r\n    var text = \"\", closing = false, lineSep = cm.doc.lineSeparator();\r\n    function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }\r\n    function walk(node) {\r\n      if (node.nodeType == 1) {\r\n        var cmText = node.getAttribute(\"cm-text\");\r\n        if (cmText != null) {\r\n          if (cmText == \"\") cmText = node.textContent.replace(/\\u200b/g, \"\");\r\n          text += cmText;\r\n          return;\r\n        }\r\n        var markerID = node.getAttribute(\"cm-marker\"), range;\r\n        if (markerID) {\r\n          var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));\r\n          if (found.length && (range = found[0].find()))\r\n            text += getBetween(cm.doc, range.from, range.to).join(lineSep);\r\n          return;\r\n        }\r\n        if (node.getAttribute(\"contenteditable\") == \"false\") return;\r\n        for (var i = 0; i < node.childNodes.length; i++)\r\n          walk(node.childNodes[i]);\r\n        if (/^(pre|div|p)$/i.test(node.nodeName))\r\n          closing = true;\r\n      } else if (node.nodeType == 3) {\r\n        var val = node.nodeValue;\r\n        if (!val) return;\r\n        if (closing) {\r\n          text += lineSep;\r\n          closing = false;\r\n        }\r\n        text += val;\r\n      }\r\n    }\r\n    for (;;) {\r\n      walk(from);\r\n      if (from == to) break;\r\n      from = from.nextSibling;\r\n    }\r\n    return text;\r\n  }\r\n\r\n  CodeMirror.inputStyles = {\"textarea\": TextareaInput, \"contenteditable\": ContentEditableInput};\r\n\r\n  // SELECTION / CURSOR\r\n\r\n  // Selection objects are immutable. A new one is created every time\r\n  // the selection changes. A selection is one or more non-overlapping\r\n  // (and non-touching) ranges, sorted, and an integer that indicates\r\n  // which one is the primary selection (the one that's scrolled into\r\n  // view, that getCursor returns, etc).\r\n  function Selection(ranges, primIndex) {\r\n    this.ranges = ranges;\r\n    this.primIndex = primIndex;\r\n  }\r\n\r\n  Selection.prototype = {\r\n    primary: function() { return this.ranges[this.primIndex]; },\r\n    equals: function(other) {\r\n      if (other == this) return true;\r\n      if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;\r\n      for (var i = 0; i < this.ranges.length; i++) {\r\n        var here = this.ranges[i], there = other.ranges[i];\r\n        if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;\r\n      }\r\n      return true;\r\n    },\r\n    deepCopy: function() {\r\n      for (var out = [], i = 0; i < this.ranges.length; i++)\r\n        out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));\r\n      return new Selection(out, this.primIndex);\r\n    },\r\n    somethingSelected: function() {\r\n      for (var i = 0; i < this.ranges.length; i++)\r\n        if (!this.ranges[i].empty()) return true;\r\n      return false;\r\n    },\r\n    contains: function(pos, end) {\r\n      if (!end) end = pos;\r\n      for (var i = 0; i < this.ranges.length; i++) {\r\n        var range = this.ranges[i];\r\n        if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)\r\n          return i;\r\n      }\r\n      return -1;\r\n    }\r\n  };\r\n\r\n  function Range(anchor, head) {\r\n    this.anchor = anchor; this.head = head;\r\n  }\r\n\r\n  Range.prototype = {\r\n    from: function() { return minPos(this.anchor, this.head); },\r\n    to: function() { return maxPos(this.anchor, this.head); },\r\n    empty: function() {\r\n      return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;\r\n    }\r\n  };\r\n\r\n  // Take an unsorted, potentially overlapping set of ranges, and\r\n  // build a selection out of it. 'Consumes' ranges array (modifying\r\n  // it).\r\n  function normalizeSelection(ranges, primIndex) {\r\n    var prim = ranges[primIndex];\r\n    ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });\r\n    primIndex = indexOf(ranges, prim);\r\n    for (var i = 1; i < ranges.length; i++) {\r\n      var cur = ranges[i], prev = ranges[i - 1];\r\n      if (cmp(prev.to(), cur.from()) >= 0) {\r\n        var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());\r\n        var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;\r\n        if (i <= primIndex) --primIndex;\r\n        ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));\r\n      }\r\n    }\r\n    return new Selection(ranges, primIndex);\r\n  }\r\n\r\n  function simpleSelection(anchor, head) {\r\n    return new Selection([new Range(anchor, head || anchor)], 0);\r\n  }\r\n\r\n  // Most of the external API clips given positions to make sure they\r\n  // actually exist within the document.\r\n  function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}\r\n  function clipPos(doc, pos) {\r\n    if (pos.line < doc.first) return Pos(doc.first, 0);\r\n    var last = doc.first + doc.size - 1;\r\n    if (pos.line > last) return Pos(last, getLine(doc, last).text.length);\r\n    return clipToLen(pos, getLine(doc, pos.line).text.length);\r\n  }\r\n  function clipToLen(pos, linelen) {\r\n    var ch = pos.ch;\r\n    if (ch == null || ch > linelen) return Pos(pos.line, linelen);\r\n    else if (ch < 0) return Pos(pos.line, 0);\r\n    else return pos;\r\n  }\r\n  function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}\r\n  function clipPosArray(doc, array) {\r\n    for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);\r\n    return out;\r\n  }\r\n\r\n  // SELECTION UPDATES\r\n\r\n  // The 'scroll' parameter given to many of these indicated whether\r\n  // the new cursor position should be scrolled into view after\r\n  // modifying the selection.\r\n\r\n  // If shift is held or the extend flag is set, extends a range to\r\n  // include a given position (and optionally a second position).\r\n  // Otherwise, simply returns the range between the given positions.\r\n  // Used for cursor motion and such.\r\n  function extendRange(doc, range, head, other) {\r\n    if (doc.cm && doc.cm.display.shift || doc.extend) {\r\n      var anchor = range.anchor;\r\n      if (other) {\r\n        var posBefore = cmp(head, anchor) < 0;\r\n        if (posBefore != (cmp(other, anchor) < 0)) {\r\n          anchor = head;\r\n          head = other;\r\n        } else if (posBefore != (cmp(head, other) < 0)) {\r\n          head = other;\r\n        }\r\n      }\r\n      return new Range(anchor, head);\r\n    } else {\r\n      return new Range(other || head, head);\r\n    }\r\n  }\r\n\r\n  // Extend the primary selection range, discard the rest.\r\n  function extendSelection(doc, head, other, options) {\r\n    setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);\r\n  }\r\n\r\n  // Extend all selections (pos is an array of selections with length\r\n  // equal the number of selections)\r\n  function extendSelections(doc, heads, options) {\r\n    for (var out = [], i = 0; i < doc.sel.ranges.length; i++)\r\n      out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);\r\n    var newSel = normalizeSelection(out, doc.sel.primIndex);\r\n    setSelection(doc, newSel, options);\r\n  }\r\n\r\n  // Updates a single range in the selection.\r\n  function replaceOneSelection(doc, i, range, options) {\r\n    var ranges = doc.sel.ranges.slice(0);\r\n    ranges[i] = range;\r\n    setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);\r\n  }\r\n\r\n  // Reset the selection to a single range.\r\n  function setSimpleSelection(doc, anchor, head, options) {\r\n    setSelection(doc, simpleSelection(anchor, head), options);\r\n  }\r\n\r\n  // Give beforeSelectionChange handlers a change to influence a\r\n  // selection update.\r\n  function filterSelectionChange(doc, sel) {\r\n    var obj = {\r\n      ranges: sel.ranges,\r\n      update: function(ranges) {\r\n        this.ranges = [];\r\n        for (var i = 0; i < ranges.length; i++)\r\n          this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),\r\n                                     clipPos(doc, ranges[i].head));\r\n      }\r\n    };\r\n    signal(doc, \"beforeSelectionChange\", doc, obj);\r\n    if (doc.cm) signal(doc.cm, \"beforeSelectionChange\", doc.cm, obj);\r\n    if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);\r\n    else return sel;\r\n  }\r\n\r\n  function setSelectionReplaceHistory(doc, sel, options) {\r\n    var done = doc.history.done, last = lst(done);\r\n    if (last && last.ranges) {\r\n      done[done.length - 1] = sel;\r\n      setSelectionNoUndo(doc, sel, options);\r\n    } else {\r\n      setSelection(doc, sel, options);\r\n    }\r\n  }\r\n\r\n  // Set a new selection.\r\n  function setSelection(doc, sel, options) {\r\n    setSelectionNoUndo(doc, sel, options);\r\n    addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);\r\n  }\r\n\r\n  function setSelectionNoUndo(doc, sel, options) {\r\n    if (hasHandler(doc, \"beforeSelectionChange\") || doc.cm && hasHandler(doc.cm, \"beforeSelectionChange\"))\r\n      sel = filterSelectionChange(doc, sel);\r\n\r\n    var bias = options && options.bias ||\r\n      (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);\r\n    setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));\r\n\r\n    if (!(options && options.scroll === false) && doc.cm)\r\n      ensureCursorVisible(doc.cm);\r\n  }\r\n\r\n  function setSelectionInner(doc, sel) {\r\n    if (sel.equals(doc.sel)) return;\r\n\r\n    doc.sel = sel;\r\n\r\n    if (doc.cm) {\r\n      doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;\r\n      signalCursorActivity(doc.cm);\r\n    }\r\n    signalLater(doc, \"cursorActivity\", doc);\r\n  }\r\n\r\n  // Verify that the selection does not partially select any atomic\r\n  // marked ranges.\r\n  function reCheckSelection(doc) {\r\n    setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);\r\n  }\r\n\r\n  // Return a selection that does not partially select any atomic\r\n  // ranges.\r\n  function skipAtomicInSelection(doc, sel, bias, mayClear) {\r\n    var out;\r\n    for (var i = 0; i < sel.ranges.length; i++) {\r\n      var range = sel.ranges[i];\r\n      var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);\r\n      var newHead = skipAtomic(doc, range.head, bias, mayClear);\r\n      if (out || newAnchor != range.anchor || newHead != range.head) {\r\n        if (!out) out = sel.ranges.slice(0, i);\r\n        out[i] = new Range(newAnchor, newHead);\r\n      }\r\n    }\r\n    return out ? normalizeSelection(out, sel.primIndex) : sel;\r\n  }\r\n\r\n  // Ensure a given position is not inside an atomic range.\r\n  function skipAtomic(doc, pos, bias, mayClear) {\r\n    var flipped = false, curPos = pos;\r\n    var dir = bias || 1;\r\n    doc.cantEdit = false;\r\n    search: for (;;) {\r\n      var line = getLine(doc, curPos.line);\r\n      if (line.markedSpans) {\r\n        for (var i = 0; i < line.markedSpans.length; ++i) {\r\n          var sp = line.markedSpans[i], m = sp.marker;\r\n          if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&\r\n              (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {\r\n            if (mayClear) {\r\n              signal(m, \"beforeCursorEnter\");\r\n              if (m.explicitlyCleared) {\r\n                if (!line.markedSpans) break;\r\n                else {--i; continue;}\r\n              }\r\n            }\r\n            if (!m.atomic) continue;\r\n            var newPos = m.find(dir < 0 ? -1 : 1);\r\n            if (cmp(newPos, curPos) == 0) {\r\n              newPos.ch += dir;\r\n              if (newPos.ch < 0) {\r\n                if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));\r\n                else newPos = null;\r\n              } else if (newPos.ch > line.text.length) {\r\n                if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);\r\n                else newPos = null;\r\n              }\r\n              if (!newPos) {\r\n                if (flipped) {\r\n                  // Driven in a corner -- no valid cursor position found at all\r\n                  // -- try again *with* clearing, if we didn't already\r\n                  if (!mayClear) return skipAtomic(doc, pos, bias, true);\r\n                  // Otherwise, turn off editing until further notice, and return the start of the doc\r\n                  doc.cantEdit = true;\r\n                  return Pos(doc.first, 0);\r\n                }\r\n                flipped = true; newPos = pos; dir = -dir;\r\n              }\r\n            }\r\n            curPos = newPos;\r\n            continue search;\r\n          }\r\n        }\r\n      }\r\n      return curPos;\r\n    }\r\n  }\r\n\r\n  // SELECTION DRAWING\r\n\r\n  function updateSelection(cm) {\r\n    cm.display.input.showSelection(cm.display.input.prepareSelection());\r\n  }\r\n\r\n  function prepareSelection(cm, primary) {\r\n    var doc = cm.doc, result = {};\r\n    var curFragment = result.cursors = document.createDocumentFragment();\r\n    var selFragment = result.selection = document.createDocumentFragment();\r\n\r\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\r\n      if (primary === false && i == doc.sel.primIndex) continue;\r\n      var range = doc.sel.ranges[i];\r\n      var collapsed = range.empty();\r\n      if (collapsed || cm.options.showCursorWhenSelecting)\r\n        drawSelectionCursor(cm, range.head, curFragment);\r\n      if (!collapsed)\r\n        drawSelectionRange(cm, range, selFragment);\r\n    }\r\n    return result;\r\n  }\r\n\r\n  // Draws a cursor for the given range\r\n  function drawSelectionCursor(cm, head, output) {\r\n    var pos = cursorCoords(cm, head, \"div\", null, null, !cm.options.singleCursorHeightPerLine);\r\n\r\n    var cursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor\"));\r\n    cursor.style.left = pos.left + \"px\";\r\n    cursor.style.top = pos.top + \"px\";\r\n    cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + \"px\";\r\n\r\n    if (pos.other) {\r\n      // Secondary cursor, shown when on a 'jump' in bi-directional text\r\n      var otherCursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\"));\r\n      otherCursor.style.display = \"\";\r\n      otherCursor.style.left = pos.other.left + \"px\";\r\n      otherCursor.style.top = pos.other.top + \"px\";\r\n      otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\";\r\n    }\r\n  }\r\n\r\n  // Draws the given range as a highlighted selection\r\n  function drawSelectionRange(cm, range, output) {\r\n    var display = cm.display, doc = cm.doc;\r\n    var fragment = document.createDocumentFragment();\r\n    var padding = paddingH(cm.display), leftSide = padding.left;\r\n    var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;\r\n\r\n    function add(left, top, width, bottom) {\r\n      if (top < 0) top = 0;\r\n      top = Math.round(top);\r\n      bottom = Math.round(bottom);\r\n      fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", \"position: absolute; left: \" + left +\r\n                               \"px; top: \" + top + \"px; width: \" + (width == null ? rightSide - left : width) +\r\n                               \"px; height: \" + (bottom - top) + \"px\"));\r\n    }\r\n\r\n    function drawForLine(line, fromArg, toArg) {\r\n      var lineObj = getLine(doc, line);\r\n      var lineLen = lineObj.text.length;\r\n      var start, end;\r\n      function coords(ch, bias) {\r\n        return charCoords(cm, Pos(line, ch), \"div\", lineObj, bias);\r\n      }\r\n\r\n      iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {\r\n        var leftPos = coords(from, \"left\"), rightPos, left, right;\r\n        if (from == to) {\r\n          rightPos = leftPos;\r\n          left = right = leftPos.left;\r\n        } else {\r\n          rightPos = coords(to - 1, \"right\");\r\n          if (dir == \"rtl\") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }\r\n          left = leftPos.left;\r\n          right = rightPos.right;\r\n        }\r\n        if (fromArg == null && from == 0) left = leftSide;\r\n        if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part\r\n          add(left, leftPos.top, null, leftPos.bottom);\r\n          left = leftSide;\r\n          if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);\r\n        }\r\n        if (toArg == null && to == lineLen) right = rightSide;\r\n        if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)\r\n          start = leftPos;\r\n        if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)\r\n          end = rightPos;\r\n        if (left < leftSide + 1) left = leftSide;\r\n        add(left, rightPos.top, right - left, rightPos.bottom);\r\n      });\r\n      return {start: start, end: end};\r\n    }\r\n\r\n    var sFrom = range.from(), sTo = range.to();\r\n    if (sFrom.line == sTo.line) {\r\n      drawForLine(sFrom.line, sFrom.ch, sTo.ch);\r\n    } else {\r\n      var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);\r\n      var singleVLine = visualLine(fromLine) == visualLine(toLine);\r\n      var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;\r\n      var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;\r\n      if (singleVLine) {\r\n        if (leftEnd.top < rightStart.top - 2) {\r\n          add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);\r\n          add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);\r\n        } else {\r\n          add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);\r\n        }\r\n      }\r\n      if (leftEnd.bottom < rightStart.top)\r\n        add(leftSide, leftEnd.bottom, null, rightStart.top);\r\n    }\r\n\r\n    output.appendChild(fragment);\r\n  }\r\n\r\n  // Cursor-blinking\r\n  function restartBlink(cm) {\r\n    if (!cm.state.focused) return;\r\n    var display = cm.display;\r\n    clearInterval(display.blinker);\r\n    var on = true;\r\n    display.cursorDiv.style.visibility = \"\";\r\n    if (cm.options.cursorBlinkRate > 0)\r\n      display.blinker = setInterval(function() {\r\n        display.cursorDiv.style.visibility = (on = !on) ? \"\" : \"hidden\";\r\n      }, cm.options.cursorBlinkRate);\r\n    else if (cm.options.cursorBlinkRate < 0)\r\n      display.cursorDiv.style.visibility = \"hidden\";\r\n  }\r\n\r\n  // HIGHLIGHT WORKER\r\n\r\n  function startWorker(cm, time) {\r\n    if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)\r\n      cm.state.highlight.set(time, bind(highlightWorker, cm));\r\n  }\r\n\r\n  function highlightWorker(cm) {\r\n    var doc = cm.doc;\r\n    if (doc.frontier < doc.first) doc.frontier = doc.first;\r\n    if (doc.frontier >= cm.display.viewTo) return;\r\n    var end = +new Date + cm.options.workTime;\r\n    var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));\r\n    var changedLines = [];\r\n\r\n    doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {\r\n      if (doc.frontier >= cm.display.viewFrom) { // Visible\r\n        var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength;\r\n        var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true);\r\n        line.styles = highlighted.styles;\r\n        var oldCls = line.styleClasses, newCls = highlighted.classes;\r\n        if (newCls) line.styleClasses = newCls;\r\n        else if (oldCls) line.styleClasses = null;\r\n        var ischange = !oldStyles || oldStyles.length != line.styles.length ||\r\n          oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);\r\n        for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];\r\n        if (ischange) changedLines.push(doc.frontier);\r\n        line.stateAfter = tooLong ? state : copyState(doc.mode, state);\r\n      } else {\r\n        if (line.text.length <= cm.options.maxHighlightLength)\r\n          processLine(cm, line.text, state);\r\n        line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;\r\n      }\r\n      ++doc.frontier;\r\n      if (+new Date > end) {\r\n        startWorker(cm, cm.options.workDelay);\r\n        return true;\r\n      }\r\n    });\r\n    if (changedLines.length) runInOp(cm, function() {\r\n      for (var i = 0; i < changedLines.length; i++)\r\n        regLineChange(cm, changedLines[i], \"text\");\r\n    });\r\n  }\r\n\r\n  // Finds the line to start with when starting a parse. Tries to\r\n  // find a line with a stateAfter, so that it can start with a\r\n  // valid state. If that fails, it returns the line with the\r\n  // smallest indentation, which tends to need the least context to\r\n  // parse correctly.\r\n  function findStartLine(cm, n, precise) {\r\n    var minindent, minline, doc = cm.doc;\r\n    var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);\r\n    for (var search = n; search > lim; --search) {\r\n      if (search <= doc.first) return doc.first;\r\n      var line = getLine(doc, search - 1);\r\n      if (line.stateAfter && (!precise || search <= doc.frontier)) return search;\r\n      var indented = countColumn(line.text, null, cm.options.tabSize);\r\n      if (minline == null || minindent > indented) {\r\n        minline = search - 1;\r\n        minindent = indented;\r\n      }\r\n    }\r\n    return minline;\r\n  }\r\n\r\n  function getStateBefore(cm, n, precise) {\r\n    var doc = cm.doc, display = cm.display;\r\n    if (!doc.mode.startState) return true;\r\n    var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;\r\n    if (!state) state = startState(doc.mode);\r\n    else state = copyState(doc.mode, state);\r\n    doc.iter(pos, n, function(line) {\r\n      processLine(cm, line.text, state);\r\n      var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;\r\n      line.stateAfter = save ? copyState(doc.mode, state) : null;\r\n      ++pos;\r\n    });\r\n    if (precise) doc.frontier = pos;\r\n    return state;\r\n  }\r\n\r\n  // POSITION MEASUREMENT\r\n\r\n  function paddingTop(display) {return display.lineSpace.offsetTop;}\r\n  function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}\r\n  function paddingH(display) {\r\n    if (display.cachedPaddingH) return display.cachedPaddingH;\r\n    var e = removeChildrenAndAdd(display.measure, elt(\"pre\", \"x\"));\r\n    var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;\r\n    var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};\r\n    if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;\r\n    return data;\r\n  }\r\n\r\n  function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }\r\n  function displayWidth(cm) {\r\n    return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;\r\n  }\r\n  function displayHeight(cm) {\r\n    return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;\r\n  }\r\n\r\n  // Ensure the lineView.wrapping.heights array is populated. This is\r\n  // an array of bottom offsets for the lines that make up a drawn\r\n  // line. When lineWrapping is on, there might be more than one\r\n  // height.\r\n  function ensureLineHeights(cm, lineView, rect) {\r\n    var wrapping = cm.options.lineWrapping;\r\n    var curWidth = wrapping && displayWidth(cm);\r\n    if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {\r\n      var heights = lineView.measure.heights = [];\r\n      if (wrapping) {\r\n        lineView.measure.width = curWidth;\r\n        var rects = lineView.text.firstChild.getClientRects();\r\n        for (var i = 0; i < rects.length - 1; i++) {\r\n          var cur = rects[i], next = rects[i + 1];\r\n          if (Math.abs(cur.bottom - next.bottom) > 2)\r\n            heights.push((cur.bottom + next.top) / 2 - rect.top);\r\n        }\r\n      }\r\n      heights.push(rect.bottom - rect.top);\r\n    }\r\n  }\r\n\r\n  // Find a line map (mapping character offsets to text nodes) and a\r\n  // measurement cache for the given line number. (A line view might\r\n  // contain multiple lines when collapsed ranges are present.)\r\n  function mapFromLineView(lineView, line, lineN) {\r\n    if (lineView.line == line)\r\n      return {map: lineView.measure.map, cache: lineView.measure.cache};\r\n    for (var i = 0; i < lineView.rest.length; i++)\r\n      if (lineView.rest[i] == line)\r\n        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};\r\n    for (var i = 0; i < lineView.rest.length; i++)\r\n      if (lineNo(lineView.rest[i]) > lineN)\r\n        return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};\r\n  }\r\n\r\n  // Render a line into the hidden node display.externalMeasured. Used\r\n  // when measurement is needed for a line that's not in the viewport.\r\n  function updateExternalMeasurement(cm, line) {\r\n    line = visualLine(line);\r\n    var lineN = lineNo(line);\r\n    var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);\r\n    view.lineN = lineN;\r\n    var built = view.built = buildLineContent(cm, view);\r\n    view.text = built.pre;\r\n    removeChildrenAndAdd(cm.display.lineMeasure, built.pre);\r\n    return view;\r\n  }\r\n\r\n  // Get a {top, bottom, left, right} box (in line-local coordinates)\r\n  // for a given character.\r\n  function measureChar(cm, line, ch, bias) {\r\n    return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);\r\n  }\r\n\r\n  // Find a line view that corresponds to the given line number.\r\n  function findViewForLine(cm, lineN) {\r\n    if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)\r\n      return cm.display.view[findViewIndex(cm, lineN)];\r\n    var ext = cm.display.externalMeasured;\r\n    if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)\r\n      return ext;\r\n  }\r\n\r\n  // Measurement can be split in two steps, the set-up work that\r\n  // applies to the whole line, and the measurement of the actual\r\n  // character. Functions like coordsChar, that need to do a lot of\r\n  // measurements in a row, can thus ensure that the set-up work is\r\n  // only done once.\r\n  function prepareMeasureForLine(cm, line) {\r\n    var lineN = lineNo(line);\r\n    var view = findViewForLine(cm, lineN);\r\n    if (view && !view.text) {\r\n      view = null;\r\n    } else if (view && view.changes) {\r\n      updateLineForChanges(cm, view, lineN, getDimensions(cm));\r\n      cm.curOp.forceUpdate = true;\r\n    }\r\n    if (!view)\r\n      view = updateExternalMeasurement(cm, line);\r\n\r\n    var info = mapFromLineView(view, line, lineN);\r\n    return {\r\n      line: line, view: view, rect: null,\r\n      map: info.map, cache: info.cache, before: info.before,\r\n      hasHeights: false\r\n    };\r\n  }\r\n\r\n  // Given a prepared measurement object, measures the position of an\r\n  // actual character (or fetches it from the cache).\r\n  function measureCharPrepared(cm, prepared, ch, bias, varHeight) {\r\n    if (prepared.before) ch = -1;\r\n    var key = ch + (bias || \"\"), found;\r\n    if (prepared.cache.hasOwnProperty(key)) {\r\n      found = prepared.cache[key];\r\n    } else {\r\n      if (!prepared.rect)\r\n        prepared.rect = prepared.view.text.getBoundingClientRect();\r\n      if (!prepared.hasHeights) {\r\n        ensureLineHeights(cm, prepared.view, prepared.rect);\r\n        prepared.hasHeights = true;\r\n      }\r\n      found = measureCharInner(cm, prepared, ch, bias);\r\n      if (!found.bogus) prepared.cache[key] = found;\r\n    }\r\n    return {left: found.left, right: found.right,\r\n            top: varHeight ? found.rtop : found.top,\r\n            bottom: varHeight ? found.rbottom : found.bottom};\r\n  }\r\n\r\n  var nullRect = {left: 0, right: 0, top: 0, bottom: 0};\r\n\r\n  function nodeAndOffsetInLineMap(map, ch, bias) {\r\n    var node, start, end, collapse;\r\n    // First, search the line map for the text node corresponding to,\r\n    // or closest to, the target character.\r\n    for (var i = 0; i < map.length; i += 3) {\r\n      var mStart = map[i], mEnd = map[i + 1];\r\n      if (ch < mStart) {\r\n        start = 0; end = 1;\r\n        collapse = \"left\";\r\n      } else if (ch < mEnd) {\r\n        start = ch - mStart;\r\n        end = start + 1;\r\n      } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {\r\n        end = mEnd - mStart;\r\n        start = end - 1;\r\n        if (ch >= mEnd) collapse = \"right\";\r\n      }\r\n      if (start != null) {\r\n        node = map[i + 2];\r\n        if (mStart == mEnd && bias == (node.insertLeft ? \"left\" : \"right\"))\r\n          collapse = bias;\r\n        if (bias == \"left\" && start == 0)\r\n          while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {\r\n            node = map[(i -= 3) + 2];\r\n            collapse = \"left\";\r\n          }\r\n        if (bias == \"right\" && start == mEnd - mStart)\r\n          while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {\r\n            node = map[(i += 3) + 2];\r\n            collapse = \"right\";\r\n          }\r\n        break;\r\n      }\r\n    }\r\n    return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};\r\n  }\r\n\r\n  function measureCharInner(cm, prepared, ch, bias) {\r\n    var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);\r\n    var node = place.node, start = place.start, end = place.end, collapse = place.collapse;\r\n\r\n    var rect;\r\n    if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.\r\n      for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned\r\n        while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;\r\n        while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;\r\n        if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {\r\n          rect = node.parentNode.getBoundingClientRect();\r\n        } else if (ie && cm.options.lineWrapping) {\r\n          var rects = range(node, start, end).getClientRects();\r\n          if (rects.length)\r\n            rect = rects[bias == \"right\" ? rects.length - 1 : 0];\r\n          else\r\n            rect = nullRect;\r\n        } else {\r\n          rect = range(node, start, end).getBoundingClientRect() || nullRect;\r\n        }\r\n        if (rect.left || rect.right || start == 0) break;\r\n        end = start;\r\n        start = start - 1;\r\n        collapse = \"right\";\r\n      }\r\n      if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);\r\n    } else { // If it is a widget, simply get the box for the whole widget.\r\n      if (start > 0) collapse = bias = \"right\";\r\n      var rects;\r\n      if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)\r\n        rect = rects[bias == \"right\" ? rects.length - 1 : 0];\r\n      else\r\n        rect = node.getBoundingClientRect();\r\n    }\r\n    if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {\r\n      var rSpan = node.parentNode.getClientRects()[0];\r\n      if (rSpan)\r\n        rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};\r\n      else\r\n        rect = nullRect;\r\n    }\r\n\r\n    var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;\r\n    var mid = (rtop + rbot) / 2;\r\n    var heights = prepared.view.measure.heights;\r\n    for (var i = 0; i < heights.length - 1; i++)\r\n      if (mid < heights[i]) break;\r\n    var top = i ? heights[i - 1] : 0, bot = heights[i];\r\n    var result = {left: (collapse == \"right\" ? rect.right : rect.left) - prepared.rect.left,\r\n                  right: (collapse == \"left\" ? rect.left : rect.right) - prepared.rect.left,\r\n                  top: top, bottom: bot};\r\n    if (!rect.left && !rect.right) result.bogus = true;\r\n    if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }\r\n\r\n    return result;\r\n  }\r\n\r\n  // Work around problem with bounding client rects on ranges being\r\n  // returned incorrectly when zoomed on IE10 and below.\r\n  function maybeUpdateRectForZooming(measure, rect) {\r\n    if (!window.screen || screen.logicalXDPI == null ||\r\n        screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))\r\n      return rect;\r\n    var scaleX = screen.logicalXDPI / screen.deviceXDPI;\r\n    var scaleY = screen.logicalYDPI / screen.deviceYDPI;\r\n    return {left: rect.left * scaleX, right: rect.right * scaleX,\r\n            top: rect.top * scaleY, bottom: rect.bottom * scaleY};\r\n  }\r\n\r\n  function clearLineMeasurementCacheFor(lineView) {\r\n    if (lineView.measure) {\r\n      lineView.measure.cache = {};\r\n      lineView.measure.heights = null;\r\n      if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)\r\n        lineView.measure.caches[i] = {};\r\n    }\r\n  }\r\n\r\n  function clearLineMeasurementCache(cm) {\r\n    cm.display.externalMeasure = null;\r\n    removeChildren(cm.display.lineMeasure);\r\n    for (var i = 0; i < cm.display.view.length; i++)\r\n      clearLineMeasurementCacheFor(cm.display.view[i]);\r\n  }\r\n\r\n  function clearCaches(cm) {\r\n    clearLineMeasurementCache(cm);\r\n    cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;\r\n    if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;\r\n    cm.display.lineNumChars = null;\r\n  }\r\n\r\n  function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }\r\n  function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }\r\n\r\n  // Converts a {top, bottom, left, right} box from line-local\r\n  // coordinates into another coordinate system. Context may be one of\r\n  // \"line\", \"div\" (display.lineDiv), \"local\"/null (editor), \"window\",\r\n  // or \"page\".\r\n  function intoCoordSystem(cm, lineObj, rect, context) {\r\n    if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {\r\n      var size = widgetHeight(lineObj.widgets[i]);\r\n      rect.top += size; rect.bottom += size;\r\n    }\r\n    if (context == \"line\") return rect;\r\n    if (!context) context = \"local\";\r\n    var yOff = heightAtLine(lineObj);\r\n    if (context == \"local\") yOff += paddingTop(cm.display);\r\n    else yOff -= cm.display.viewOffset;\r\n    if (context == \"page\" || context == \"window\") {\r\n      var lOff = cm.display.lineSpace.getBoundingClientRect();\r\n      yOff += lOff.top + (context == \"window\" ? 0 : pageScrollY());\r\n      var xOff = lOff.left + (context == \"window\" ? 0 : pageScrollX());\r\n      rect.left += xOff; rect.right += xOff;\r\n    }\r\n    rect.top += yOff; rect.bottom += yOff;\r\n    return rect;\r\n  }\r\n\r\n  // Coverts a box from \"div\" coords to another coordinate system.\r\n  // Context may be \"window\", \"page\", \"div\", or \"local\"/null.\r\n  function fromCoordSystem(cm, coords, context) {\r\n    if (context == \"div\") return coords;\r\n    var left = coords.left, top = coords.top;\r\n    // First move into \"page\" coordinate system\r\n    if (context == \"page\") {\r\n      left -= pageScrollX();\r\n      top -= pageScrollY();\r\n    } else if (context == \"local\" || !context) {\r\n      var localBox = cm.display.sizer.getBoundingClientRect();\r\n      left += localBox.left;\r\n      top += localBox.top;\r\n    }\r\n\r\n    var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();\r\n    return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};\r\n  }\r\n\r\n  function charCoords(cm, pos, context, lineObj, bias) {\r\n    if (!lineObj) lineObj = getLine(cm.doc, pos.line);\r\n    return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);\r\n  }\r\n\r\n  // Returns a box for a given cursor position, which may have an\r\n  // 'other' property containing the position of the secondary cursor\r\n  // on a bidi boundary.\r\n  function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {\r\n    lineObj = lineObj || getLine(cm.doc, pos.line);\r\n    if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);\r\n    function get(ch, right) {\r\n      var m = measureCharPrepared(cm, preparedMeasure, ch, right ? \"right\" : \"left\", varHeight);\r\n      if (right) m.left = m.right; else m.right = m.left;\r\n      return intoCoordSystem(cm, lineObj, m, context);\r\n    }\r\n    function getBidi(ch, partPos) {\r\n      var part = order[partPos], right = part.level % 2;\r\n      if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {\r\n        part = order[--partPos];\r\n        ch = bidiRight(part) - (part.level % 2 ? 0 : 1);\r\n        right = true;\r\n      } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {\r\n        part = order[++partPos];\r\n        ch = bidiLeft(part) - part.level % 2;\r\n        right = false;\r\n      }\r\n      if (right && ch == part.to && ch > part.from) return get(ch - 1);\r\n      return get(ch, right);\r\n    }\r\n    var order = getOrder(lineObj), ch = pos.ch;\r\n    if (!order) return get(ch);\r\n    var partPos = getBidiPartAt(order, ch);\r\n    var val = getBidi(ch, partPos);\r\n    if (bidiOther != null) val.other = getBidi(ch, bidiOther);\r\n    return val;\r\n  }\r\n\r\n  // Used to cheaply estimate the coordinates for a position. Used for\r\n  // intermediate scroll updates.\r\n  function estimateCoords(cm, pos) {\r\n    var left = 0, pos = clipPos(cm.doc, pos);\r\n    if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;\r\n    var lineObj = getLine(cm.doc, pos.line);\r\n    var top = heightAtLine(lineObj) + paddingTop(cm.display);\r\n    return {left: left, right: left, top: top, bottom: top + lineObj.height};\r\n  }\r\n\r\n  // Positions returned by coordsChar contain some extra information.\r\n  // xRel is the relative x position of the input coordinates compared\r\n  // to the found position (so xRel > 0 means the coordinates are to\r\n  // the right of the character position, for example). When outside\r\n  // is true, that means the coordinates lie outside the line's\r\n  // vertical range.\r\n  function PosWithInfo(line, ch, outside, xRel) {\r\n    var pos = Pos(line, ch);\r\n    pos.xRel = xRel;\r\n    if (outside) pos.outside = true;\r\n    return pos;\r\n  }\r\n\r\n  // Compute the character position closest to the given coordinates.\r\n  // Input must be lineSpace-local (\"div\" coordinate system).\r\n  function coordsChar(cm, x, y) {\r\n    var doc = cm.doc;\r\n    y += cm.display.viewOffset;\r\n    if (y < 0) return PosWithInfo(doc.first, 0, true, -1);\r\n    var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;\r\n    if (lineN > last)\r\n      return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);\r\n    if (x < 0) x = 0;\r\n\r\n    var lineObj = getLine(doc, lineN);\r\n    for (;;) {\r\n      var found = coordsCharInner(cm, lineObj, lineN, x, y);\r\n      var merged = collapsedSpanAtEnd(lineObj);\r\n      var mergedPos = merged && merged.find(0, true);\r\n      if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))\r\n        lineN = lineNo(lineObj = mergedPos.to.line);\r\n      else\r\n        return found;\r\n    }\r\n  }\r\n\r\n  function coordsCharInner(cm, lineObj, lineNo, x, y) {\r\n    var innerOff = y - heightAtLine(lineObj);\r\n    var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;\r\n    var preparedMeasure = prepareMeasureForLine(cm, lineObj);\r\n\r\n    function getX(ch) {\r\n      var sp = cursorCoords(cm, Pos(lineNo, ch), \"line\", lineObj, preparedMeasure);\r\n      wrongLine = true;\r\n      if (innerOff > sp.bottom) return sp.left - adjust;\r\n      else if (innerOff < sp.top) return sp.left + adjust;\r\n      else wrongLine = false;\r\n      return sp.left;\r\n    }\r\n\r\n    var bidi = getOrder(lineObj), dist = lineObj.text.length;\r\n    var from = lineLeft(lineObj), to = lineRight(lineObj);\r\n    var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;\r\n\r\n    if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);\r\n    // Do a binary search between these bounds.\r\n    for (;;) {\r\n      if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {\r\n        var ch = x < fromX || x - fromX <= toX - x ? from : to;\r\n        var xDiff = x - (ch == from ? fromX : toX);\r\n        while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;\r\n        var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,\r\n                              xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);\r\n        return pos;\r\n      }\r\n      var step = Math.ceil(dist / 2), middle = from + step;\r\n      if (bidi) {\r\n        middle = from;\r\n        for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);\r\n      }\r\n      var middleX = getX(middle);\r\n      if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}\r\n      else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}\r\n    }\r\n  }\r\n\r\n  var measureText;\r\n  // Compute the default text height.\r\n  function textHeight(display) {\r\n    if (display.cachedTextHeight != null) return display.cachedTextHeight;\r\n    if (measureText == null) {\r\n      measureText = elt(\"pre\");\r\n      // Measure a bunch of lines, for browsers that compute\r\n      // fractional heights.\r\n      for (var i = 0; i < 49; ++i) {\r\n        measureText.appendChild(document.createTextNode(\"x\"));\r\n        measureText.appendChild(elt(\"br\"));\r\n      }\r\n      measureText.appendChild(document.createTextNode(\"x\"));\r\n    }\r\n    removeChildrenAndAdd(display.measure, measureText);\r\n    var height = measureText.offsetHeight / 50;\r\n    if (height > 3) display.cachedTextHeight = height;\r\n    removeChildren(display.measure);\r\n    return height || 1;\r\n  }\r\n\r\n  // Compute the default character width.\r\n  function charWidth(display) {\r\n    if (display.cachedCharWidth != null) return display.cachedCharWidth;\r\n    var anchor = elt(\"span\", \"xxxxxxxxxx\");\r\n    var pre = elt(\"pre\", [anchor]);\r\n    removeChildrenAndAdd(display.measure, pre);\r\n    var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;\r\n    if (width > 2) display.cachedCharWidth = width;\r\n    return width || 10;\r\n  }\r\n\r\n  // OPERATIONS\r\n\r\n  // Operations are used to wrap a series of changes to the editor\r\n  // state in such a way that each change won't have to update the\r\n  // cursor and display (which would be awkward, slow, and\r\n  // error-prone). Instead, display updates are batched and then all\r\n  // combined and executed at once.\r\n\r\n  var operationGroup = null;\r\n\r\n  var nextOpId = 0;\r\n  // Start a new operation.\r\n  function startOperation(cm) {\r\n    cm.curOp = {\r\n      cm: cm,\r\n      viewChanged: false,      // Flag that indicates that lines might need to be redrawn\r\n      startHeight: cm.doc.height, // Used to detect need to update scrollbar\r\n      forceUpdate: false,      // Used to force a redraw\r\n      updateInput: null,       // Whether to reset the input textarea\r\n      typing: false,           // Whether this reset should be careful to leave existing text (for compositing)\r\n      changeObjs: null,        // Accumulated changes, for firing change events\r\n      cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on\r\n      cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already\r\n      selectionChanged: false, // Whether the selection needs to be redrawn\r\n      updateMaxLine: false,    // Set when the widest line needs to be determined anew\r\n      scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet\r\n      scrollToPos: null,       // Used to scroll to a specific position\r\n      focus: false,\r\n      id: ++nextOpId           // Unique ID\r\n    };\r\n    if (operationGroup) {\r\n      operationGroup.ops.push(cm.curOp);\r\n    } else {\r\n      cm.curOp.ownsGroup = operationGroup = {\r\n        ops: [cm.curOp],\r\n        delayedCallbacks: []\r\n      };\r\n    }\r\n  }\r\n\r\n  function fireCallbacksForOps(group) {\r\n    // Calls delayed callbacks and cursorActivity handlers until no\r\n    // new ones appear\r\n    var callbacks = group.delayedCallbacks, i = 0;\r\n    do {\r\n      for (; i < callbacks.length; i++)\r\n        callbacks[i].call(null);\r\n      for (var j = 0; j < group.ops.length; j++) {\r\n        var op = group.ops[j];\r\n        if (op.cursorActivityHandlers)\r\n          while (op.cursorActivityCalled < op.cursorActivityHandlers.length)\r\n            op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm);\r\n      }\r\n    } while (i < callbacks.length);\r\n  }\r\n\r\n  // Finish an operation, updating the display and signalling delayed events\r\n  function endOperation(cm) {\r\n    var op = cm.curOp, group = op.ownsGroup;\r\n    if (!group) return;\r\n\r\n    try { fireCallbacksForOps(group); }\r\n    finally {\r\n      operationGroup = null;\r\n      for (var i = 0; i < group.ops.length; i++)\r\n        group.ops[i].cm.curOp = null;\r\n      endOperations(group);\r\n    }\r\n  }\r\n\r\n  // The DOM updates done when an operation finishes are batched so\r\n  // that the minimum number of relayouts are required.\r\n  function endOperations(group) {\r\n    var ops = group.ops;\r\n    for (var i = 0; i < ops.length; i++) // Read DOM\r\n      endOperation_R1(ops[i]);\r\n    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)\r\n      endOperation_W1(ops[i]);\r\n    for (var i = 0; i < ops.length; i++) // Read DOM\r\n      endOperation_R2(ops[i]);\r\n    for (var i = 0; i < ops.length; i++) // Write DOM (maybe)\r\n      endOperation_W2(ops[i]);\r\n    for (var i = 0; i < ops.length; i++) // Read DOM\r\n      endOperation_finish(ops[i]);\r\n  }\r\n\r\n  function endOperation_R1(op) {\r\n    var cm = op.cm, display = cm.display;\r\n    maybeClipScrollbars(cm);\r\n    if (op.updateMaxLine) findMaxLine(cm);\r\n\r\n    op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||\r\n      op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||\r\n                         op.scrollToPos.to.line >= display.viewTo) ||\r\n      display.maxLineChanged && cm.options.lineWrapping;\r\n    op.update = op.mustUpdate &&\r\n      new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);\r\n  }\r\n\r\n  function endOperation_W1(op) {\r\n    op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);\r\n  }\r\n\r\n  function endOperation_R2(op) {\r\n    var cm = op.cm, display = cm.display;\r\n    if (op.updatedDisplay) updateHeightsInViewport(cm);\r\n\r\n    op.barMeasure = measureForScrollbars(cm);\r\n\r\n    // If the max line changed since it was last measured, measure it,\r\n    // and ensure the document's width matches it.\r\n    // updateDisplay_W2 will use these properties to do the actual resizing\r\n    if (display.maxLineChanged && !cm.options.lineWrapping) {\r\n      op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;\r\n      cm.display.sizerWidth = op.adjustWidthTo;\r\n      op.barMeasure.scrollWidth =\r\n        Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);\r\n      op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));\r\n    }\r\n\r\n    if (op.updatedDisplay || op.selectionChanged)\r\n      op.preparedSelection = display.input.prepareSelection();\r\n  }\r\n\r\n  function endOperation_W2(op) {\r\n    var cm = op.cm;\r\n\r\n    if (op.adjustWidthTo != null) {\r\n      cm.display.sizer.style.minWidth = op.adjustWidthTo + \"px\";\r\n      if (op.maxScrollLeft < cm.doc.scrollLeft)\r\n        setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);\r\n      cm.display.maxLineChanged = false;\r\n    }\r\n\r\n    if (op.preparedSelection)\r\n      cm.display.input.showSelection(op.preparedSelection);\r\n    if (op.updatedDisplay)\r\n      setDocumentHeight(cm, op.barMeasure);\r\n    if (op.updatedDisplay || op.startHeight != cm.doc.height)\r\n      updateScrollbars(cm, op.barMeasure);\r\n\r\n    if (op.selectionChanged) restartBlink(cm);\r\n\r\n    if (cm.state.focused && op.updateInput)\r\n      cm.display.input.reset(op.typing);\r\n    if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);\r\n  }\r\n\r\n  function endOperation_finish(op) {\r\n    var cm = op.cm, display = cm.display, doc = cm.doc;\r\n\r\n    if (op.updatedDisplay) postUpdateDisplay(cm, op.update);\r\n\r\n    // Abort mouse wheel delta measurement, when scrolling explicitly\r\n    if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))\r\n      display.wheelStartX = display.wheelStartY = null;\r\n\r\n    // Propagate the scroll position to the actual DOM scroller\r\n    if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {\r\n      doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));\r\n      display.scrollbars.setScrollTop(doc.scrollTop);\r\n      display.scroller.scrollTop = doc.scrollTop;\r\n    }\r\n    if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {\r\n      doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft));\r\n      display.scrollbars.setScrollLeft(doc.scrollLeft);\r\n      display.scroller.scrollLeft = doc.scrollLeft;\r\n      alignHorizontally(cm);\r\n    }\r\n    // If we need to scroll a specific position into view, do so.\r\n    if (op.scrollToPos) {\r\n      var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),\r\n                                     clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);\r\n      if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);\r\n    }\r\n\r\n    // Fire events for markers that are hidden/unidden by editing or\r\n    // undoing\r\n    var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;\r\n    if (hidden) for (var i = 0; i < hidden.length; ++i)\r\n      if (!hidden[i].lines.length) signal(hidden[i], \"hide\");\r\n    if (unhidden) for (var i = 0; i < unhidden.length; ++i)\r\n      if (unhidden[i].lines.length) signal(unhidden[i], \"unhide\");\r\n\r\n    if (display.wrapper.offsetHeight)\r\n      doc.scrollTop = cm.display.scroller.scrollTop;\r\n\r\n    // Fire change events, and delayed event handlers\r\n    if (op.changeObjs)\r\n      signal(cm, \"changes\", cm, op.changeObjs);\r\n    if (op.update)\r\n      op.update.finish();\r\n  }\r\n\r\n  // Run the given function in an operation\r\n  function runInOp(cm, f) {\r\n    if (cm.curOp) return f();\r\n    startOperation(cm);\r\n    try { return f(); }\r\n    finally { endOperation(cm); }\r\n  }\r\n  // Wraps a function in an operation. Returns the wrapped function.\r\n  function operation(cm, f) {\r\n    return function() {\r\n      if (cm.curOp) return f.apply(cm, arguments);\r\n      startOperation(cm);\r\n      try { return f.apply(cm, arguments); }\r\n      finally { endOperation(cm); }\r\n    };\r\n  }\r\n  // Used to add methods to editor and doc instances, wrapping them in\r\n  // operations.\r\n  function methodOp(f) {\r\n    return function() {\r\n      if (this.curOp) return f.apply(this, arguments);\r\n      startOperation(this);\r\n      try { return f.apply(this, arguments); }\r\n      finally { endOperation(this); }\r\n    };\r\n  }\r\n  function docMethodOp(f) {\r\n    return function() {\r\n      var cm = this.cm;\r\n      if (!cm || cm.curOp) return f.apply(this, arguments);\r\n      startOperation(cm);\r\n      try { return f.apply(this, arguments); }\r\n      finally { endOperation(cm); }\r\n    };\r\n  }\r\n\r\n  // VIEW TRACKING\r\n\r\n  // These objects are used to represent the visible (currently drawn)\r\n  // part of the document. A LineView may correspond to multiple\r\n  // logical lines, if those are connected by collapsed ranges.\r\n  function LineView(doc, line, lineN) {\r\n    // The starting line\r\n    this.line = line;\r\n    // Continuing lines, if any\r\n    this.rest = visualLineContinued(line);\r\n    // Number of logical lines in this visual line\r\n    this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;\r\n    this.node = this.text = null;\r\n    this.hidden = lineIsHidden(doc, line);\r\n  }\r\n\r\n  // Create a range of LineView objects for the given lines.\r\n  function buildViewArray(cm, from, to) {\r\n    var array = [], nextPos;\r\n    for (var pos = from; pos < to; pos = nextPos) {\r\n      var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);\r\n      nextPos = pos + view.size;\r\n      array.push(view);\r\n    }\r\n    return array;\r\n  }\r\n\r\n  // Updates the display.view data structure for a given change to the\r\n  // document. From and to are in pre-change coordinates. Lendiff is\r\n  // the amount of lines added or subtracted by the change. This is\r\n  // used for changes that span multiple lines, or change the way\r\n  // lines are divided into visual lines. regLineChange (below)\r\n  // registers single-line changes.\r\n  function regChange(cm, from, to, lendiff) {\r\n    if (from == null) from = cm.doc.first;\r\n    if (to == null) to = cm.doc.first + cm.doc.size;\r\n    if (!lendiff) lendiff = 0;\r\n\r\n    var display = cm.display;\r\n    if (lendiff && to < display.viewTo &&\r\n        (display.updateLineNumbers == null || display.updateLineNumbers > from))\r\n      display.updateLineNumbers = from;\r\n\r\n    cm.curOp.viewChanged = true;\r\n\r\n    if (from >= display.viewTo) { // Change after\r\n      if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)\r\n        resetView(cm);\r\n    } else if (to <= display.viewFrom) { // Change before\r\n      if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {\r\n        resetView(cm);\r\n      } else {\r\n        display.viewFrom += lendiff;\r\n        display.viewTo += lendiff;\r\n      }\r\n    } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap\r\n      resetView(cm);\r\n    } else if (from <= display.viewFrom) { // Top overlap\r\n      var cut = viewCuttingPoint(cm, to, to + lendiff, 1);\r\n      if (cut) {\r\n        display.view = display.view.slice(cut.index);\r\n        display.viewFrom = cut.lineN;\r\n        display.viewTo += lendiff;\r\n      } else {\r\n        resetView(cm);\r\n      }\r\n    } else if (to >= display.viewTo) { // Bottom overlap\r\n      var cut = viewCuttingPoint(cm, from, from, -1);\r\n      if (cut) {\r\n        display.view = display.view.slice(0, cut.index);\r\n        display.viewTo = cut.lineN;\r\n      } else {\r\n        resetView(cm);\r\n      }\r\n    } else { // Gap in the middle\r\n      var cutTop = viewCuttingPoint(cm, from, from, -1);\r\n      var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);\r\n      if (cutTop && cutBot) {\r\n        display.view = display.view.slice(0, cutTop.index)\r\n          .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))\r\n          .concat(display.view.slice(cutBot.index));\r\n        display.viewTo += lendiff;\r\n      } else {\r\n        resetView(cm);\r\n      }\r\n    }\r\n\r\n    var ext = display.externalMeasured;\r\n    if (ext) {\r\n      if (to < ext.lineN)\r\n        ext.lineN += lendiff;\r\n      else if (from < ext.lineN + ext.size)\r\n        display.externalMeasured = null;\r\n    }\r\n  }\r\n\r\n  // Register a change to a single line. Type must be one of \"text\",\r\n  // \"gutter\", \"class\", \"widget\"\r\n  function regLineChange(cm, line, type) {\r\n    cm.curOp.viewChanged = true;\r\n    var display = cm.display, ext = cm.display.externalMeasured;\r\n    if (ext && line >= ext.lineN && line < ext.lineN + ext.size)\r\n      display.externalMeasured = null;\r\n\r\n    if (line < display.viewFrom || line >= display.viewTo) return;\r\n    var lineView = display.view[findViewIndex(cm, line)];\r\n    if (lineView.node == null) return;\r\n    var arr = lineView.changes || (lineView.changes = []);\r\n    if (indexOf(arr, type) == -1) arr.push(type);\r\n  }\r\n\r\n  // Clear the view.\r\n  function resetView(cm) {\r\n    cm.display.viewFrom = cm.display.viewTo = cm.doc.first;\r\n    cm.display.view = [];\r\n    cm.display.viewOffset = 0;\r\n  }\r\n\r\n  // Find the view element corresponding to a given line. Return null\r\n  // when the line isn't visible.\r\n  function findViewIndex(cm, n) {\r\n    if (n >= cm.display.viewTo) return null;\r\n    n -= cm.display.viewFrom;\r\n    if (n < 0) return null;\r\n    var view = cm.display.view;\r\n    for (var i = 0; i < view.length; i++) {\r\n      n -= view[i].size;\r\n      if (n < 0) return i;\r\n    }\r\n  }\r\n\r\n  function viewCuttingPoint(cm, oldN, newN, dir) {\r\n    var index = findViewIndex(cm, oldN), diff, view = cm.display.view;\r\n    if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)\r\n      return {index: index, lineN: newN};\r\n    for (var i = 0, n = cm.display.viewFrom; i < index; i++)\r\n      n += view[i].size;\r\n    if (n != oldN) {\r\n      if (dir > 0) {\r\n        if (index == view.length - 1) return null;\r\n        diff = (n + view[index].size) - oldN;\r\n        index++;\r\n      } else {\r\n        diff = n - oldN;\r\n      }\r\n      oldN += diff; newN += diff;\r\n    }\r\n    while (visualLineNo(cm.doc, newN) != newN) {\r\n      if (index == (dir < 0 ? 0 : view.length - 1)) return null;\r\n      newN += dir * view[index - (dir < 0 ? 1 : 0)].size;\r\n      index += dir;\r\n    }\r\n    return {index: index, lineN: newN};\r\n  }\r\n\r\n  // Force the view to cover a given range, adding empty view element\r\n  // or clipping off existing ones as needed.\r\n  function adjustView(cm, from, to) {\r\n    var display = cm.display, view = display.view;\r\n    if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {\r\n      display.view = buildViewArray(cm, from, to);\r\n      display.viewFrom = from;\r\n    } else {\r\n      if (display.viewFrom > from)\r\n        display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);\r\n      else if (display.viewFrom < from)\r\n        display.view = display.view.slice(findViewIndex(cm, from));\r\n      display.viewFrom = from;\r\n      if (display.viewTo < to)\r\n        display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));\r\n      else if (display.viewTo > to)\r\n        display.view = display.view.slice(0, findViewIndex(cm, to));\r\n    }\r\n    display.viewTo = to;\r\n  }\r\n\r\n  // Count the number of lines in the view whose DOM representation is\r\n  // out of date (or nonexistent).\r\n  function countDirtyView(cm) {\r\n    var view = cm.display.view, dirty = 0;\r\n    for (var i = 0; i < view.length; i++) {\r\n      var lineView = view[i];\r\n      if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;\r\n    }\r\n    return dirty;\r\n  }\r\n\r\n  // EVENT HANDLERS\r\n\r\n  // Attach the necessary event handlers when initializing the editor\r\n  function registerEventHandlers(cm) {\r\n    var d = cm.display;\r\n    on(d.scroller, \"mousedown\", operation(cm, onMouseDown));\r\n    // Older IE's will not fire a second mousedown for a double click\r\n    if (ie && ie_version < 11)\r\n      on(d.scroller, \"dblclick\", operation(cm, function(e) {\r\n        if (signalDOMEvent(cm, e)) return;\r\n        var pos = posFromMouse(cm, e);\r\n        if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;\r\n        e_preventDefault(e);\r\n        var word = cm.findWordAt(pos);\r\n        extendSelection(cm.doc, word.anchor, word.head);\r\n      }));\r\n    else\r\n      on(d.scroller, \"dblclick\", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });\r\n    // Some browsers fire contextmenu *after* opening the menu, at\r\n    // which point we can't mess with it anymore. Context menu is\r\n    // handled in onMouseDown for these browsers.\r\n    if (!captureRightClick) on(d.scroller, \"contextmenu\", function(e) {onContextMenu(cm, e);});\r\n\r\n    // Used to suppress mouse event handling when a touch happens\r\n    var touchFinished, prevTouch = {end: 0};\r\n    function finishTouch() {\r\n      if (d.activeTouch) {\r\n        touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);\r\n        prevTouch = d.activeTouch;\r\n        prevTouch.end = +new Date;\r\n      }\r\n    };\r\n    function isMouseLikeTouchEvent(e) {\r\n      if (e.touches.length != 1) return false;\r\n      var touch = e.touches[0];\r\n      return touch.radiusX <= 1 && touch.radiusY <= 1;\r\n    }\r\n    function farAway(touch, other) {\r\n      if (other.left == null) return true;\r\n      var dx = other.left - touch.left, dy = other.top - touch.top;\r\n      return dx * dx + dy * dy > 20 * 20;\r\n    }\r\n    on(d.scroller, \"touchstart\", function(e) {\r\n      if (!isMouseLikeTouchEvent(e)) {\r\n        clearTimeout(touchFinished);\r\n        var now = +new Date;\r\n        d.activeTouch = {start: now, moved: false,\r\n                         prev: now - prevTouch.end <= 300 ? prevTouch : null};\r\n        if (e.touches.length == 1) {\r\n          d.activeTouch.left = e.touches[0].pageX;\r\n          d.activeTouch.top = e.touches[0].pageY;\r\n        }\r\n      }\r\n    });\r\n    on(d.scroller, \"touchmove\", function() {\r\n      if (d.activeTouch) d.activeTouch.moved = true;\r\n    });\r\n    on(d.scroller, \"touchend\", function(e) {\r\n      var touch = d.activeTouch;\r\n      if (touch && !eventInWidget(d, e) && touch.left != null &&\r\n          !touch.moved && new Date - touch.start < 300) {\r\n        var pos = cm.coordsChar(d.activeTouch, \"page\"), range;\r\n        if (!touch.prev || farAway(touch, touch.prev)) // Single tap\r\n          range = new Range(pos, pos);\r\n        else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap\r\n          range = cm.findWordAt(pos);\r\n        else // Triple tap\r\n          range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));\r\n        cm.setSelection(range.anchor, range.head);\r\n        cm.focus();\r\n        e_preventDefault(e);\r\n      }\r\n      finishTouch();\r\n    });\r\n    on(d.scroller, \"touchcancel\", finishTouch);\r\n\r\n    // Sync scrolling between fake scrollbars and real scrollable\r\n    // area, ensure viewport is updated when scrolling.\r\n    on(d.scroller, \"scroll\", function() {\r\n      if (d.scroller.clientHeight) {\r\n        setScrollTop(cm, d.scroller.scrollTop);\r\n        setScrollLeft(cm, d.scroller.scrollLeft, true);\r\n        signal(cm, \"scroll\", cm);\r\n      }\r\n    });\r\n\r\n    // Listen to wheel events in order to try and update the viewport on time.\r\n    on(d.scroller, \"mousewheel\", function(e){onScrollWheel(cm, e);});\r\n    on(d.scroller, \"DOMMouseScroll\", function(e){onScrollWheel(cm, e);});\r\n\r\n    // Prevent wrapper from ever scrolling\r\n    on(d.wrapper, \"scroll\", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });\r\n\r\n    d.dragFunctions = {\r\n      enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},\r\n      over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},\r\n      start: function(e){onDragStart(cm, e);},\r\n      drop: operation(cm, onDrop),\r\n      leave: function() {clearDragCursor(cm);}\r\n    };\r\n\r\n    var inp = d.input.getField();\r\n    on(inp, \"keyup\", function(e) { onKeyUp.call(cm, e); });\r\n    on(inp, \"keydown\", operation(cm, onKeyDown));\r\n    on(inp, \"keypress\", operation(cm, onKeyPress));\r\n    on(inp, \"focus\", bind(onFocus, cm));\r\n    on(inp, \"blur\", bind(onBlur, cm));\r\n  }\r\n\r\n  function dragDropChanged(cm, value, old) {\r\n    var wasOn = old && old != CodeMirror.Init;\r\n    if (!value != !wasOn) {\r\n      var funcs = cm.display.dragFunctions;\r\n      var toggle = value ? on : off;\r\n      toggle(cm.display.scroller, \"dragstart\", funcs.start);\r\n      toggle(cm.display.scroller, \"dragenter\", funcs.enter);\r\n      toggle(cm.display.scroller, \"dragover\", funcs.over);\r\n      toggle(cm.display.scroller, \"dragleave\", funcs.leave);\r\n      toggle(cm.display.scroller, \"drop\", funcs.drop);\r\n    }\r\n  }\r\n\r\n  // Called when the window resizes\r\n  function onResize(cm) {\r\n    var d = cm.display;\r\n    if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)\r\n      return;\r\n    // Might be a text scaling operation, clear size caches.\r\n    d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;\r\n    d.scrollbarsClipped = false;\r\n    cm.setSize();\r\n  }\r\n\r\n  // MOUSE EVENTS\r\n\r\n  // Return true when the given mouse event happened in a widget\r\n  function eventInWidget(display, e) {\r\n    for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {\r\n      if (!n || (n.nodeType == 1 && n.getAttribute(\"cm-ignore-events\") == \"true\") ||\r\n          (n.parentNode == display.sizer && n != display.mover))\r\n        return true;\r\n    }\r\n  }\r\n\r\n  // Given a mouse event, find the corresponding position. If liberal\r\n  // is false, it checks whether a gutter or scrollbar was clicked,\r\n  // and returns null if it was. forRect is used by rectangular\r\n  // selections, and tries to estimate a character position even for\r\n  // coordinates beyond the right of the text.\r\n  function posFromMouse(cm, e, liberal, forRect) {\r\n    var display = cm.display;\r\n    if (!liberal && e_target(e).getAttribute(\"cm-not-content\") == \"true\") return null;\r\n\r\n    var x, y, space = display.lineSpace.getBoundingClientRect();\r\n    // Fails unpredictably on IE[67] when mouse is dragged around quickly.\r\n    try { x = e.clientX - space.left; y = e.clientY - space.top; }\r\n    catch (e) { return null; }\r\n    var coords = coordsChar(cm, x, y), line;\r\n    if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {\r\n      var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;\r\n      coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));\r\n    }\r\n    return coords;\r\n  }\r\n\r\n  // A mouse down can be a single click, double click, triple click,\r\n  // start of selection drag, start of text drag, new cursor\r\n  // (ctrl-click), rectangle drag (alt-drag), or xwin\r\n  // middle-click-paste. Or it might be a click on something we should\r\n  // not interfere with, such as a scrollbar or widget.\r\n  function onMouseDown(e) {\r\n    var cm = this, display = cm.display;\r\n    if (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return;\r\n    display.shift = e.shiftKey;\r\n\r\n    if (eventInWidget(display, e)) {\r\n      if (!webkit) {\r\n        // Briefly turn off draggability, to allow widgets to do\r\n        // normal dragging things.\r\n        display.scroller.draggable = false;\r\n        setTimeout(function(){display.scroller.draggable = true;}, 100);\r\n      }\r\n      return;\r\n    }\r\n    if (clickInGutter(cm, e)) return;\r\n    var start = posFromMouse(cm, e);\r\n    window.focus();\r\n\r\n    switch (e_button(e)) {\r\n    case 1:\r\n      // #3261: make sure, that we're not starting a second selection\r\n      if (cm.state.selectingText)\r\n        cm.state.selectingText(e);\r\n      else if (start)\r\n        leftButtonDown(cm, e, start);\r\n      else if (e_target(e) == display.scroller)\r\n        e_preventDefault(e);\r\n      break;\r\n    case 2:\r\n      if (webkit) cm.state.lastMiddleDown = +new Date;\r\n      if (start) extendSelection(cm.doc, start);\r\n      setTimeout(function() {display.input.focus();}, 20);\r\n      e_preventDefault(e);\r\n      break;\r\n    case 3:\r\n      if (captureRightClick) onContextMenu(cm, e);\r\n      else delayBlurEvent(cm);\r\n      break;\r\n    }\r\n  }\r\n\r\n  var lastClick, lastDoubleClick;\r\n  function leftButtonDown(cm, e, start) {\r\n    if (ie) setTimeout(bind(ensureFocus, cm), 0);\r\n    else cm.curOp.focus = activeElt();\r\n\r\n    var now = +new Date, type;\r\n    if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {\r\n      type = \"triple\";\r\n    } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {\r\n      type = \"double\";\r\n      lastDoubleClick = {time: now, pos: start};\r\n    } else {\r\n      type = \"single\";\r\n      lastClick = {time: now, pos: start};\r\n    }\r\n\r\n    var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;\r\n    if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&\r\n        type == \"single\" && (contained = sel.contains(start)) > -1 &&\r\n        (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&\r\n        (cmp(contained.to(), start) > 0 || start.xRel < 0))\r\n      leftButtonStartDrag(cm, e, start, modifier);\r\n    else\r\n      leftButtonSelect(cm, e, start, type, modifier);\r\n  }\r\n\r\n  // Start a text drag. When it ends, see if any dragging actually\r\n  // happen, and treat as a click if it didn't.\r\n  function leftButtonStartDrag(cm, e, start, modifier) {\r\n    var display = cm.display, startTime = +new Date;\r\n    var dragEnd = operation(cm, function(e2) {\r\n      if (webkit) display.scroller.draggable = false;\r\n      cm.state.draggingText = false;\r\n      off(document, \"mouseup\", dragEnd);\r\n      off(display.scroller, \"drop\", dragEnd);\r\n      if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {\r\n        e_preventDefault(e2);\r\n        if (!modifier && +new Date - 200 < startTime)\r\n          extendSelection(cm.doc, start);\r\n        // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)\r\n        if (webkit || ie && ie_version == 9)\r\n          setTimeout(function() {document.body.focus(); display.input.focus();}, 20);\r\n        else\r\n          display.input.focus();\r\n      }\r\n    });\r\n    // Let the drag handler handle this.\r\n    if (webkit) display.scroller.draggable = true;\r\n    cm.state.draggingText = dragEnd;\r\n    // IE's approach to draggable\r\n    if (display.scroller.dragDrop) display.scroller.dragDrop();\r\n    on(document, \"mouseup\", dragEnd);\r\n    on(display.scroller, \"drop\", dragEnd);\r\n  }\r\n\r\n  // Normal selection, as opposed to text dragging.\r\n  function leftButtonSelect(cm, e, start, type, addNew) {\r\n    var display = cm.display, doc = cm.doc;\r\n    e_preventDefault(e);\r\n\r\n    var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;\r\n    if (addNew && !e.shiftKey) {\r\n      ourIndex = doc.sel.contains(start);\r\n      if (ourIndex > -1)\r\n        ourRange = ranges[ourIndex];\r\n      else\r\n        ourRange = new Range(start, start);\r\n    } else {\r\n      ourRange = doc.sel.primary();\r\n      ourIndex = doc.sel.primIndex;\r\n    }\r\n\r\n    if (e.altKey) {\r\n      type = \"rect\";\r\n      if (!addNew) ourRange = new Range(start, start);\r\n      start = posFromMouse(cm, e, true, true);\r\n      ourIndex = -1;\r\n    } else if (type == \"double\") {\r\n      var word = cm.findWordAt(start);\r\n      if (cm.display.shift || doc.extend)\r\n        ourRange = extendRange(doc, ourRange, word.anchor, word.head);\r\n      else\r\n        ourRange = word;\r\n    } else if (type == \"triple\") {\r\n      var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));\r\n      if (cm.display.shift || doc.extend)\r\n        ourRange = extendRange(doc, ourRange, line.anchor, line.head);\r\n      else\r\n        ourRange = line;\r\n    } else {\r\n      ourRange = extendRange(doc, ourRange, start);\r\n    }\r\n\r\n    if (!addNew) {\r\n      ourIndex = 0;\r\n      setSelection(doc, new Selection([ourRange], 0), sel_mouse);\r\n      startSel = doc.sel;\r\n    } else if (ourIndex == -1) {\r\n      ourIndex = ranges.length;\r\n      setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),\r\n                   {scroll: false, origin: \"*mouse\"});\r\n    } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == \"single\" && !e.shiftKey) {\r\n      setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),\r\n                   {scroll: false, origin: \"*mouse\"});\r\n      startSel = doc.sel;\r\n    } else {\r\n      replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);\r\n    }\r\n\r\n    var lastPos = start;\r\n    function extendTo(pos) {\r\n      if (cmp(lastPos, pos) == 0) return;\r\n      lastPos = pos;\r\n\r\n      if (type == \"rect\") {\r\n        var ranges = [], tabSize = cm.options.tabSize;\r\n        var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);\r\n        var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);\r\n        var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);\r\n        for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));\r\n             line <= end; line++) {\r\n          var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);\r\n          if (left == right)\r\n            ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));\r\n          else if (text.length > leftPos)\r\n            ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));\r\n        }\r\n        if (!ranges.length) ranges.push(new Range(start, start));\r\n        setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),\r\n                     {origin: \"*mouse\", scroll: false});\r\n        cm.scrollIntoView(pos);\r\n      } else {\r\n        var oldRange = ourRange;\r\n        var anchor = oldRange.anchor, head = pos;\r\n        if (type != \"single\") {\r\n          if (type == \"double\")\r\n            var range = cm.findWordAt(pos);\r\n          else\r\n            var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));\r\n          if (cmp(range.anchor, anchor) > 0) {\r\n            head = range.head;\r\n            anchor = minPos(oldRange.from(), range.anchor);\r\n          } else {\r\n            head = range.anchor;\r\n            anchor = maxPos(oldRange.to(), range.head);\r\n          }\r\n        }\r\n        var ranges = startSel.ranges.slice(0);\r\n        ranges[ourIndex] = new Range(clipPos(doc, anchor), head);\r\n        setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);\r\n      }\r\n    }\r\n\r\n    var editorSize = display.wrapper.getBoundingClientRect();\r\n    // Used to ensure timeout re-tries don't fire when another extend\r\n    // happened in the meantime (clearTimeout isn't reliable -- at\r\n    // least on Chrome, the timeouts still happen even when cleared,\r\n    // if the clear happens after their scheduled firing time).\r\n    var counter = 0;\r\n\r\n    function extend(e) {\r\n      var curCount = ++counter;\r\n      var cur = posFromMouse(cm, e, true, type == \"rect\");\r\n      if (!cur) return;\r\n      if (cmp(cur, lastPos) != 0) {\r\n        cm.curOp.focus = activeElt();\r\n        extendTo(cur);\r\n        var visible = visibleLines(display, doc);\r\n        if (cur.line >= visible.to || cur.line < visible.from)\r\n          setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);\r\n      } else {\r\n        var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;\r\n        if (outside) setTimeout(operation(cm, function() {\r\n          if (counter != curCount) return;\r\n          display.scroller.scrollTop += outside;\r\n          extend(e);\r\n        }), 50);\r\n      }\r\n    }\r\n\r\n    function done(e) {\r\n      cm.state.selectingText = false;\r\n      counter = Infinity;\r\n      e_preventDefault(e);\r\n      display.input.focus();\r\n      off(document, \"mousemove\", move);\r\n      off(document, \"mouseup\", up);\r\n      doc.history.lastSelOrigin = null;\r\n    }\r\n\r\n    var move = operation(cm, function(e) {\r\n      if (!e_button(e)) done(e);\r\n      else extend(e);\r\n    });\r\n    var up = operation(cm, done);\r\n    cm.state.selectingText = up;\r\n    on(document, \"mousemove\", move);\r\n    on(document, \"mouseup\", up);\r\n  }\r\n\r\n  // Determines whether an event happened in the gutter, and fires the\r\n  // handlers for the corresponding event.\r\n  function gutterEvent(cm, e, type, prevent, signalfn) {\r\n    try { var mX = e.clientX, mY = e.clientY; }\r\n    catch(e) { return false; }\r\n    if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;\r\n    if (prevent) e_preventDefault(e);\r\n\r\n    var display = cm.display;\r\n    var lineBox = display.lineDiv.getBoundingClientRect();\r\n\r\n    if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);\r\n    mY -= lineBox.top - display.viewOffset;\r\n\r\n    for (var i = 0; i < cm.options.gutters.length; ++i) {\r\n      var g = display.gutters.childNodes[i];\r\n      if (g && g.getBoundingClientRect().right >= mX) {\r\n        var line = lineAtHeight(cm.doc, mY);\r\n        var gutter = cm.options.gutters[i];\r\n        signalfn(cm, type, cm, line, gutter, e);\r\n        return e_defaultPrevented(e);\r\n      }\r\n    }\r\n  }\r\n\r\n  function clickInGutter(cm, e) {\r\n    return gutterEvent(cm, e, \"gutterClick\", true, signalLater);\r\n  }\r\n\r\n  // Kludge to work around strange IE behavior where it'll sometimes\r\n  // re-fire a series of drag-related events right after the drop (#1551)\r\n  var lastDrop = 0;\r\n\r\n  function onDrop(e) {\r\n    var cm = this;\r\n    clearDragCursor(cm);\r\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))\r\n      return;\r\n    e_preventDefault(e);\r\n    if (ie) lastDrop = +new Date;\r\n    var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;\r\n    if (!pos || isReadOnly(cm)) return;\r\n    // Might be a file drop, in which case we simply extract the text\r\n    // and insert it.\r\n    if (files && files.length && window.FileReader && window.File) {\r\n      var n = files.length, text = Array(n), read = 0;\r\n      var loadFile = function(file, i) {\r\n        if (cm.options.allowDropFileTypes &&\r\n            indexOf(cm.options.allowDropFileTypes, file.type) == -1)\r\n          return;\r\n\r\n        var reader = new FileReader;\r\n        reader.onload = operation(cm, function() {\r\n          var content = reader.result;\r\n          if (/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(content)) content = \"\";\r\n          text[i] = content;\r\n          if (++read == n) {\r\n            pos = clipPos(cm.doc, pos);\r\n            var change = {from: pos, to: pos,\r\n                          text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),\r\n                          origin: \"paste\"};\r\n            makeChange(cm.doc, change);\r\n            setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));\r\n          }\r\n        });\r\n        reader.readAsText(file);\r\n      };\r\n      for (var i = 0; i < n; ++i) loadFile(files[i], i);\r\n    } else { // Normal drop\r\n      // Don't do a replace if the drop happened inside of the selected text.\r\n      if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {\r\n        cm.state.draggingText(e);\r\n        // Ensure the editor is re-focused\r\n        setTimeout(function() {cm.display.input.focus();}, 20);\r\n        return;\r\n      }\r\n      try {\r\n        var text = e.dataTransfer.getData(\"Text\");\r\n        if (text) {\r\n          if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))\r\n            var selected = cm.listSelections();\r\n          setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));\r\n          if (selected) for (var i = 0; i < selected.length; ++i)\r\n            replaceRange(cm.doc, \"\", selected[i].anchor, selected[i].head, \"drag\");\r\n          cm.replaceSelection(text, \"around\", \"paste\");\r\n          cm.display.input.focus();\r\n        }\r\n      }\r\n      catch(e){}\r\n    }\r\n  }\r\n\r\n  function onDragStart(cm, e) {\r\n    if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }\r\n    if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;\r\n\r\n    e.dataTransfer.setData(\"Text\", cm.getSelection());\r\n\r\n    // Use dummy image instead of default browsers image.\r\n    // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.\r\n    if (e.dataTransfer.setDragImage && !safari) {\r\n      var img = elt(\"img\", null, null, \"position: fixed; left: 0; top: 0;\");\r\n      img.src = \"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\";\r\n      if (presto) {\r\n        img.width = img.height = 1;\r\n        cm.display.wrapper.appendChild(img);\r\n        // Force a relayout, or Opera won't use our image for some obscure reason\r\n        img._top = img.offsetTop;\r\n      }\r\n      e.dataTransfer.setDragImage(img, 0, 0);\r\n      if (presto) img.parentNode.removeChild(img);\r\n    }\r\n  }\r\n\r\n  function onDragOver(cm, e) {\r\n    var pos = posFromMouse(cm, e);\r\n    if (!pos) return;\r\n    var frag = document.createDocumentFragment();\r\n    drawSelectionCursor(cm, pos, frag);\r\n    if (!cm.display.dragCursor) {\r\n      cm.display.dragCursor = elt(\"div\", null, \"CodeMirror-cursors CodeMirror-dragcursors\");\r\n      cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);\r\n    }\r\n    removeChildrenAndAdd(cm.display.dragCursor, frag);\r\n  }\r\n\r\n  function clearDragCursor(cm) {\r\n    if (cm.display.dragCursor) {\r\n      cm.display.lineSpace.removeChild(cm.display.dragCursor);\r\n      cm.display.dragCursor = null;\r\n    }\r\n  }\r\n\r\n  // SCROLL EVENTS\r\n\r\n  // Sync the scrollable area and scrollbars, ensure the viewport\r\n  // covers the visible area.\r\n  function setScrollTop(cm, val) {\r\n    if (Math.abs(cm.doc.scrollTop - val) < 2) return;\r\n    cm.doc.scrollTop = val;\r\n    if (!gecko) updateDisplaySimple(cm, {top: val});\r\n    if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;\r\n    cm.display.scrollbars.setScrollTop(val);\r\n    if (gecko) updateDisplaySimple(cm);\r\n    startWorker(cm, 100);\r\n  }\r\n  // Sync scroller and scrollbar, ensure the gutter elements are\r\n  // aligned.\r\n  function setScrollLeft(cm, val, isScroller) {\r\n    if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;\r\n    val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);\r\n    cm.doc.scrollLeft = val;\r\n    alignHorizontally(cm);\r\n    if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;\r\n    cm.display.scrollbars.setScrollLeft(val);\r\n  }\r\n\r\n  // Since the delta values reported on mouse wheel events are\r\n  // unstandardized between browsers and even browser versions, and\r\n  // generally horribly unpredictable, this code starts by measuring\r\n  // the scroll effect that the first few mouse wheel events have,\r\n  // and, from that, detects the way it can convert deltas to pixel\r\n  // offsets afterwards.\r\n  //\r\n  // The reason we want to know the amount a wheel event will scroll\r\n  // is that it gives us a chance to update the display before the\r\n  // actual scrolling happens, reducing flickering.\r\n\r\n  var wheelSamples = 0, wheelPixelsPerUnit = null;\r\n  // Fill in a browser-detected starting value on browsers where we\r\n  // know one. These don't have to be accurate -- the result of them\r\n  // being wrong would just be a slight flicker on the first wheel\r\n  // scroll (if it is large enough).\r\n  if (ie) wheelPixelsPerUnit = -.53;\r\n  else if (gecko) wheelPixelsPerUnit = 15;\r\n  else if (chrome) wheelPixelsPerUnit = -.7;\r\n  else if (safari) wheelPixelsPerUnit = -1/3;\r\n\r\n  var wheelEventDelta = function(e) {\r\n    var dx = e.wheelDeltaX, dy = e.wheelDeltaY;\r\n    if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;\r\n    if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;\r\n    else if (dy == null) dy = e.wheelDelta;\r\n    return {x: dx, y: dy};\r\n  };\r\n  CodeMirror.wheelEventPixels = function(e) {\r\n    var delta = wheelEventDelta(e);\r\n    delta.x *= wheelPixelsPerUnit;\r\n    delta.y *= wheelPixelsPerUnit;\r\n    return delta;\r\n  };\r\n\r\n  function onScrollWheel(cm, e) {\r\n    var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;\r\n\r\n    var display = cm.display, scroll = display.scroller;\r\n    // Quit if there's nothing to scroll here\r\n    var canScrollX = scroll.scrollWidth > scroll.clientWidth;\r\n    var canScrollY = scroll.scrollHeight > scroll.clientHeight;\r\n    if (!(dx && canScrollX || dy && canScrollY)) return;\r\n\r\n    // Webkit browsers on OS X abort momentum scrolls when the target\r\n    // of the scroll event is removed from the scrollable element.\r\n    // This hack (see related code in patchDisplay) makes sure the\r\n    // element is kept around.\r\n    if (dy && mac && webkit) {\r\n      outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {\r\n        for (var i = 0; i < view.length; i++) {\r\n          if (view[i].node == cur) {\r\n            cm.display.currentWheelTarget = cur;\r\n            break outer;\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    // On some browsers, horizontal scrolling will cause redraws to\r\n    // happen before the gutter has been realigned, causing it to\r\n    // wriggle around in a most unseemly way. When we have an\r\n    // estimated pixels/delta value, we just handle horizontal\r\n    // scrolling entirely here. It'll be slightly off from native, but\r\n    // better than glitching out.\r\n    if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {\r\n      if (dy && canScrollY)\r\n        setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));\r\n      setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));\r\n      // Only prevent default scrolling if vertical scrolling is\r\n      // actually possible. Otherwise, it causes vertical scroll\r\n      // jitter on OSX trackpads when deltaX is small and deltaY\r\n      // is large (issue #3579)\r\n      if (!dy || (dy && canScrollY))\r\n        e_preventDefault(e);\r\n      display.wheelStartX = null; // Abort measurement, if in progress\r\n      return;\r\n    }\r\n\r\n    // 'Project' the visible viewport to cover the area that is being\r\n    // scrolled into view (if we know enough to estimate it).\r\n    if (dy && wheelPixelsPerUnit != null) {\r\n      var pixels = dy * wheelPixelsPerUnit;\r\n      var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;\r\n      if (pixels < 0) top = Math.max(0, top + pixels - 50);\r\n      else bot = Math.min(cm.doc.height, bot + pixels + 50);\r\n      updateDisplaySimple(cm, {top: top, bottom: bot});\r\n    }\r\n\r\n    if (wheelSamples < 20) {\r\n      if (display.wheelStartX == null) {\r\n        display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;\r\n        display.wheelDX = dx; display.wheelDY = dy;\r\n        setTimeout(function() {\r\n          if (display.wheelStartX == null) return;\r\n          var movedX = scroll.scrollLeft - display.wheelStartX;\r\n          var movedY = scroll.scrollTop - display.wheelStartY;\r\n          var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||\r\n            (movedX && display.wheelDX && movedX / display.wheelDX);\r\n          display.wheelStartX = display.wheelStartY = null;\r\n          if (!sample) return;\r\n          wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);\r\n          ++wheelSamples;\r\n        }, 200);\r\n      } else {\r\n        display.wheelDX += dx; display.wheelDY += dy;\r\n      }\r\n    }\r\n  }\r\n\r\n  // KEY EVENTS\r\n\r\n  // Run a handler that was bound to a key.\r\n  function doHandleBinding(cm, bound, dropShift) {\r\n    if (typeof bound == \"string\") {\r\n      bound = commands[bound];\r\n      if (!bound) return false;\r\n    }\r\n    // Ensure previous input has been read, so that the handler sees a\r\n    // consistent view of the document\r\n    cm.display.input.ensurePolled();\r\n    var prevShift = cm.display.shift, done = false;\r\n    try {\r\n      if (isReadOnly(cm)) cm.state.suppressEdits = true;\r\n      if (dropShift) cm.display.shift = false;\r\n      done = bound(cm) != Pass;\r\n    } finally {\r\n      cm.display.shift = prevShift;\r\n      cm.state.suppressEdits = false;\r\n    }\r\n    return done;\r\n  }\r\n\r\n  function lookupKeyForEditor(cm, name, handle) {\r\n    for (var i = 0; i < cm.state.keyMaps.length; i++) {\r\n      var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);\r\n      if (result) return result;\r\n    }\r\n    return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))\r\n      || lookupKey(name, cm.options.keyMap, handle, cm);\r\n  }\r\n\r\n  var stopSeq = new Delayed;\r\n  function dispatchKey(cm, name, e, handle) {\r\n    var seq = cm.state.keySeq;\r\n    if (seq) {\r\n      if (isModifierKey(name)) return \"handled\";\r\n      stopSeq.set(50, function() {\r\n        if (cm.state.keySeq == seq) {\r\n          cm.state.keySeq = null;\r\n          cm.display.input.reset();\r\n        }\r\n      });\r\n      name = seq + \" \" + name;\r\n    }\r\n    var result = lookupKeyForEditor(cm, name, handle);\r\n\r\n    if (result == \"multi\")\r\n      cm.state.keySeq = name;\r\n    if (result == \"handled\")\r\n      signalLater(cm, \"keyHandled\", cm, name, e);\r\n\r\n    if (result == \"handled\" || result == \"multi\") {\r\n      e_preventDefault(e);\r\n      restartBlink(cm);\r\n    }\r\n\r\n    if (seq && !result && /\\'$/.test(name)) {\r\n      e_preventDefault(e);\r\n      return true;\r\n    }\r\n    return !!result;\r\n  }\r\n\r\n  // Handle a key from the keydown event.\r\n  function handleKeyBinding(cm, e) {\r\n    var name = keyName(e, true);\r\n    if (!name) return false;\r\n\r\n    if (e.shiftKey && !cm.state.keySeq) {\r\n      // First try to resolve full name (including 'Shift-'). Failing\r\n      // that, see if there is a cursor-motion command (starting with\r\n      // 'go') bound to the keyname without 'Shift-'.\r\n      return dispatchKey(cm, \"Shift-\" + name, e, function(b) {return doHandleBinding(cm, b, true);})\r\n          || dispatchKey(cm, name, e, function(b) {\r\n               if (typeof b == \"string\" ? /^go[A-Z]/.test(b) : b.motion)\r\n                 return doHandleBinding(cm, b);\r\n             });\r\n    } else {\r\n      return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });\r\n    }\r\n  }\r\n\r\n  // Handle a key from the keypress event\r\n  function handleCharBinding(cm, e, ch) {\r\n    return dispatchKey(cm, \"'\" + ch + \"'\", e,\r\n                       function(b) { return doHandleBinding(cm, b, true); });\r\n  }\r\n\r\n  var lastStoppedKey = null;\r\n  function onKeyDown(e) {\r\n    var cm = this;\r\n    cm.curOp.focus = activeElt();\r\n    if (signalDOMEvent(cm, e)) return;\r\n    // IE does strange things with escape.\r\n    if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;\r\n    var code = e.keyCode;\r\n    cm.display.shift = code == 16 || e.shiftKey;\r\n    var handled = handleKeyBinding(cm, e);\r\n    if (presto) {\r\n      lastStoppedKey = handled ? code : null;\r\n      // Opera has no cut event... we try to at least catch the key combo\r\n      if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))\r\n        cm.replaceSelection(\"\", null, \"cut\");\r\n    }\r\n\r\n    // Turn mouse into crosshair when Alt is held on Mac.\r\n    if (code == 18 && !/\\bCodeMirror-crosshair\\b/.test(cm.display.lineDiv.className))\r\n      showCrossHair(cm);\r\n  }\r\n\r\n  function showCrossHair(cm) {\r\n    var lineDiv = cm.display.lineDiv;\r\n    addClass(lineDiv, \"CodeMirror-crosshair\");\r\n\r\n    function up(e) {\r\n      if (e.keyCode == 18 || !e.altKey) {\r\n        rmClass(lineDiv, \"CodeMirror-crosshair\");\r\n        off(document, \"keyup\", up);\r\n        off(document, \"mouseover\", up);\r\n      }\r\n    }\r\n    on(document, \"keyup\", up);\r\n    on(document, \"mouseover\", up);\r\n  }\r\n\r\n  function onKeyUp(e) {\r\n    if (e.keyCode == 16) this.doc.sel.shift = false;\r\n    signalDOMEvent(this, e);\r\n  }\r\n\r\n  function onKeyPress(e) {\r\n    var cm = this;\r\n    if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;\r\n    var keyCode = e.keyCode, charCode = e.charCode;\r\n    if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}\r\n    if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;\r\n    var ch = String.fromCharCode(charCode == null ? keyCode : charCode);\r\n    if (handleCharBinding(cm, e, ch)) return;\r\n    cm.display.input.onKeyPress(e);\r\n  }\r\n\r\n  // FOCUS/BLUR EVENTS\r\n\r\n  function delayBlurEvent(cm) {\r\n    cm.state.delayingBlurEvent = true;\r\n    setTimeout(function() {\r\n      if (cm.state.delayingBlurEvent) {\r\n        cm.state.delayingBlurEvent = false;\r\n        onBlur(cm);\r\n      }\r\n    }, 100);\r\n  }\r\n\r\n  function onFocus(cm) {\r\n    if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;\r\n\r\n    if (cm.options.readOnly == \"nocursor\") return;\r\n    if (!cm.state.focused) {\r\n      signal(cm, \"focus\", cm);\r\n      cm.state.focused = true;\r\n      addClass(cm.display.wrapper, \"CodeMirror-focused\");\r\n      // This test prevents this from firing when a context\r\n      // menu is closed (since the input reset would kill the\r\n      // select-all detection hack)\r\n      if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {\r\n        cm.display.input.reset();\r\n        if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730\r\n      }\r\n      cm.display.input.receivedFocus();\r\n    }\r\n    restartBlink(cm);\r\n  }\r\n  function onBlur(cm) {\r\n    if (cm.state.delayingBlurEvent) return;\r\n\r\n    if (cm.state.focused) {\r\n      signal(cm, \"blur\", cm);\r\n      cm.state.focused = false;\r\n      rmClass(cm.display.wrapper, \"CodeMirror-focused\");\r\n    }\r\n    clearInterval(cm.display.blinker);\r\n    setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);\r\n  }\r\n\r\n  // CONTEXT MENU HANDLING\r\n\r\n  // To make the context menu work, we need to briefly unhide the\r\n  // textarea (making it as unobtrusive as possible) to let the\r\n  // right-click take effect on it.\r\n  function onContextMenu(cm, e) {\r\n    if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;\r\n    if (signalDOMEvent(cm, e, \"contextmenu\")) return;\r\n    cm.display.input.onContextMenu(e);\r\n  }\r\n\r\n  function contextMenuInGutter(cm, e) {\r\n    if (!hasHandler(cm, \"gutterContextMenu\")) return false;\r\n    return gutterEvent(cm, e, \"gutterContextMenu\", false, signal);\r\n  }\r\n\r\n  // UPDATING\r\n\r\n  // Compute the position of the end of a change (its 'to' property\r\n  // refers to the pre-change end).\r\n  var changeEnd = CodeMirror.changeEnd = function(change) {\r\n    if (!change.text) return change.to;\r\n    return Pos(change.from.line + change.text.length - 1,\r\n               lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));\r\n  };\r\n\r\n  // Adjust a position to refer to the post-change position of the\r\n  // same text, or the end of the change if the change covers it.\r\n  function adjustForChange(pos, change) {\r\n    if (cmp(pos, change.from) < 0) return pos;\r\n    if (cmp(pos, change.to) <= 0) return changeEnd(change);\r\n\r\n    var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;\r\n    if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;\r\n    return Pos(line, ch);\r\n  }\r\n\r\n  function computeSelAfterChange(doc, change) {\r\n    var out = [];\r\n    for (var i = 0; i < doc.sel.ranges.length; i++) {\r\n      var range = doc.sel.ranges[i];\r\n      out.push(new Range(adjustForChange(range.anchor, change),\r\n                         adjustForChange(range.head, change)));\r\n    }\r\n    return normalizeSelection(out, doc.sel.primIndex);\r\n  }\r\n\r\n  function offsetPos(pos, old, nw) {\r\n    if (pos.line == old.line)\r\n      return Pos(nw.line, pos.ch - old.ch + nw.ch);\r\n    else\r\n      return Pos(nw.line + (pos.line - old.line), pos.ch);\r\n  }\r\n\r\n  // Used by replaceSelections to allow moving the selection to the\r\n  // start or around the replaced test. Hint may be \"start\" or \"around\".\r\n  function computeReplacedSel(doc, changes, hint) {\r\n    var out = [];\r\n    var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;\r\n    for (var i = 0; i < changes.length; i++) {\r\n      var change = changes[i];\r\n      var from = offsetPos(change.from, oldPrev, newPrev);\r\n      var to = offsetPos(changeEnd(change), oldPrev, newPrev);\r\n      oldPrev = change.to;\r\n      newPrev = to;\r\n      if (hint == \"around\") {\r\n        var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;\r\n        out[i] = new Range(inv ? to : from, inv ? from : to);\r\n      } else {\r\n        out[i] = new Range(from, from);\r\n      }\r\n    }\r\n    return new Selection(out, doc.sel.primIndex);\r\n  }\r\n\r\n  // Allow \"beforeChange\" event handlers to influence a change\r\n  function filterChange(doc, change, update) {\r\n    var obj = {\r\n      canceled: false,\r\n      from: change.from,\r\n      to: change.to,\r\n      text: change.text,\r\n      origin: change.origin,\r\n      cancel: function() { this.canceled = true; }\r\n    };\r\n    if (update) obj.update = function(from, to, text, origin) {\r\n      if (from) this.from = clipPos(doc, from);\r\n      if (to) this.to = clipPos(doc, to);\r\n      if (text) this.text = text;\r\n      if (origin !== undefined) this.origin = origin;\r\n    };\r\n    signal(doc, \"beforeChange\", doc, obj);\r\n    if (doc.cm) signal(doc.cm, \"beforeChange\", doc.cm, obj);\r\n\r\n    if (obj.canceled) return null;\r\n    return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};\r\n  }\r\n\r\n  // Apply a change to a document, and add it to the document's\r\n  // history, and propagating it to all linked documents.\r\n  function makeChange(doc, change, ignoreReadOnly) {\r\n    if (doc.cm) {\r\n      if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);\r\n      if (doc.cm.state.suppressEdits) return;\r\n    }\r\n\r\n    if (hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")) {\r\n      change = filterChange(doc, change, true);\r\n      if (!change) return;\r\n    }\r\n\r\n    // Possibly split or suppress the update based on the presence\r\n    // of read-only spans in its range.\r\n    var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);\r\n    if (split) {\r\n      for (var i = split.length - 1; i >= 0; --i)\r\n        makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [\"\"] : change.text});\r\n    } else {\r\n      makeChangeInner(doc, change);\r\n    }\r\n  }\r\n\r\n  function makeChangeInner(doc, change) {\r\n    if (change.text.length == 1 && change.text[0] == \"\" && cmp(change.from, change.to) == 0) return;\r\n    var selAfter = computeSelAfterChange(doc, change);\r\n    addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);\r\n\r\n    makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));\r\n    var rebased = [];\r\n\r\n    linkedDocs(doc, function(doc, sharedHist) {\r\n      if (!sharedHist && indexOf(rebased, doc.history) == -1) {\r\n        rebaseHist(doc.history, change);\r\n        rebased.push(doc.history);\r\n      }\r\n      makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));\r\n    });\r\n  }\r\n\r\n  // Revert a change stored in a document's history.\r\n  function makeChangeFromHistory(doc, type, allowSelectionOnly) {\r\n    if (doc.cm && doc.cm.state.suppressEdits) return;\r\n\r\n    var hist = doc.history, event, selAfter = doc.sel;\r\n    var source = type == \"undo\" ? hist.done : hist.undone, dest = type == \"undo\" ? hist.undone : hist.done;\r\n\r\n    // Verify that there is a useable event (so that ctrl-z won't\r\n    // needlessly clear selection events)\r\n    for (var i = 0; i < source.length; i++) {\r\n      event = source[i];\r\n      if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)\r\n        break;\r\n    }\r\n    if (i == source.length) return;\r\n    hist.lastOrigin = hist.lastSelOrigin = null;\r\n\r\n    for (;;) {\r\n      event = source.pop();\r\n      if (event.ranges) {\r\n        pushSelectionToHistory(event, dest);\r\n        if (allowSelectionOnly && !event.equals(doc.sel)) {\r\n          setSelection(doc, event, {clearRedo: false});\r\n          return;\r\n        }\r\n        selAfter = event;\r\n      }\r\n      else break;\r\n    }\r\n\r\n    // Build up a reverse change object to add to the opposite history\r\n    // stack (redo when undoing, and vice versa).\r\n    var antiChanges = [];\r\n    pushSelectionToHistory(selAfter, dest);\r\n    dest.push({changes: antiChanges, generation: hist.generation});\r\n    hist.generation = event.generation || ++hist.maxGeneration;\r\n\r\n    var filter = hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\");\r\n\r\n    for (var i = event.changes.length - 1; i >= 0; --i) {\r\n      var change = event.changes[i];\r\n      change.origin = type;\r\n      if (filter && !filterChange(doc, change, false)) {\r\n        source.length = 0;\r\n        return;\r\n      }\r\n\r\n      antiChanges.push(historyChangeFromChange(doc, change));\r\n\r\n      var after = i ? computeSelAfterChange(doc, change) : lst(source);\r\n      makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));\r\n      if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});\r\n      var rebased = [];\r\n\r\n      // Propagate to the linked documents\r\n      linkedDocs(doc, function(doc, sharedHist) {\r\n        if (!sharedHist && indexOf(rebased, doc.history) == -1) {\r\n          rebaseHist(doc.history, change);\r\n          rebased.push(doc.history);\r\n        }\r\n        makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));\r\n      });\r\n    }\r\n  }\r\n\r\n  // Sub-views need their line numbers shifted when text is added\r\n  // above or below them in the parent document.\r\n  function shiftDoc(doc, distance) {\r\n    if (distance == 0) return;\r\n    doc.first += distance;\r\n    doc.sel = new Selection(map(doc.sel.ranges, function(range) {\r\n      return new Range(Pos(range.anchor.line + distance, range.anchor.ch),\r\n                       Pos(range.head.line + distance, range.head.ch));\r\n    }), doc.sel.primIndex);\r\n    if (doc.cm) {\r\n      regChange(doc.cm, doc.first, doc.first - distance, distance);\r\n      for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)\r\n        regLineChange(doc.cm, l, \"gutter\");\r\n    }\r\n  }\r\n\r\n  // More lower-level change function, handling only a single document\r\n  // (not linked ones).\r\n  function makeChangeSingleDoc(doc, change, selAfter, spans) {\r\n    if (doc.cm && !doc.cm.curOp)\r\n      return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);\r\n\r\n    if (change.to.line < doc.first) {\r\n      shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));\r\n      return;\r\n    }\r\n    if (change.from.line > doc.lastLine()) return;\r\n\r\n    // Clip the change to the size of this doc\r\n    if (change.from.line < doc.first) {\r\n      var shift = change.text.length - 1 - (doc.first - change.from.line);\r\n      shiftDoc(doc, shift);\r\n      change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),\r\n                text: [lst(change.text)], origin: change.origin};\r\n    }\r\n    var last = doc.lastLine();\r\n    if (change.to.line > last) {\r\n      change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),\r\n                text: [change.text[0]], origin: change.origin};\r\n    }\r\n\r\n    change.removed = getBetween(doc, change.from, change.to);\r\n\r\n    if (!selAfter) selAfter = computeSelAfterChange(doc, change);\r\n    if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);\r\n    else updateDoc(doc, change, spans);\r\n    setSelectionNoUndo(doc, selAfter, sel_dontScroll);\r\n  }\r\n\r\n  // Handle the interaction of a change to a document with the editor\r\n  // that this document is part of.\r\n  function makeChangeSingleDocInEditor(cm, change, spans) {\r\n    var doc = cm.doc, display = cm.display, from = change.from, to = change.to;\r\n\r\n    var recomputeMaxLength = false, checkWidthStart = from.line;\r\n    if (!cm.options.lineWrapping) {\r\n      checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));\r\n      doc.iter(checkWidthStart, to.line + 1, function(line) {\r\n        if (line == display.maxLine) {\r\n          recomputeMaxLength = true;\r\n          return true;\r\n        }\r\n      });\r\n    }\r\n\r\n    if (doc.sel.contains(change.from, change.to) > -1)\r\n      signalCursorActivity(cm);\r\n\r\n    updateDoc(doc, change, spans, estimateHeight(cm));\r\n\r\n    if (!cm.options.lineWrapping) {\r\n      doc.iter(checkWidthStart, from.line + change.text.length, function(line) {\r\n        var len = lineLength(line);\r\n        if (len > display.maxLineLength) {\r\n          display.maxLine = line;\r\n          display.maxLineLength = len;\r\n          display.maxLineChanged = true;\r\n          recomputeMaxLength = false;\r\n        }\r\n      });\r\n      if (recomputeMaxLength) cm.curOp.updateMaxLine = true;\r\n    }\r\n\r\n    // Adjust frontier, schedule worker\r\n    doc.frontier = Math.min(doc.frontier, from.line);\r\n    startWorker(cm, 400);\r\n\r\n    var lendiff = change.text.length - (to.line - from.line) - 1;\r\n    // Remember that these lines changed, for updating the display\r\n    if (change.full)\r\n      regChange(cm);\r\n    else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))\r\n      regLineChange(cm, from.line, \"text\");\r\n    else\r\n      regChange(cm, from.line, to.line + 1, lendiff);\r\n\r\n    var changesHandler = hasHandler(cm, \"changes\"), changeHandler = hasHandler(cm, \"change\");\r\n    if (changeHandler || changesHandler) {\r\n      var obj = {\r\n        from: from, to: to,\r\n        text: change.text,\r\n        removed: change.removed,\r\n        origin: change.origin\r\n      };\r\n      if (changeHandler) signalLater(cm, \"change\", cm, obj);\r\n      if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);\r\n    }\r\n    cm.display.selForContextMenu = null;\r\n  }\r\n\r\n  function replaceRange(doc, code, from, to, origin) {\r\n    if (!to) to = from;\r\n    if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }\r\n    if (typeof code == \"string\") code = doc.splitLines(code);\r\n    makeChange(doc, {from: from, to: to, text: code, origin: origin});\r\n  }\r\n\r\n  // SCROLLING THINGS INTO VIEW\r\n\r\n  // If an editor sits on the top or bottom of the window, partially\r\n  // scrolled out of view, this ensures that the cursor is visible.\r\n  function maybeScrollWindow(cm, coords) {\r\n    if (signalDOMEvent(cm, \"scrollCursorIntoView\")) return;\r\n\r\n    var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;\r\n    if (coords.top + box.top < 0) doScroll = true;\r\n    else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;\r\n    if (doScroll != null && !phantom) {\r\n      var scrollNode = elt(\"div\", \"\\u200b\", null, \"position: absolute; top: \" +\r\n                           (coords.top - display.viewOffset - paddingTop(cm.display)) + \"px; height: \" +\r\n                           (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + \"px; left: \" +\r\n                           coords.left + \"px; width: 2px;\");\r\n      cm.display.lineSpace.appendChild(scrollNode);\r\n      scrollNode.scrollIntoView(doScroll);\r\n      cm.display.lineSpace.removeChild(scrollNode);\r\n    }\r\n  }\r\n\r\n  // Scroll a given position into view (immediately), verifying that\r\n  // it actually became visible (as line heights are accurately\r\n  // measured, the position of something may 'drift' during drawing).\r\n  function scrollPosIntoView(cm, pos, end, margin) {\r\n    if (margin == null) margin = 0;\r\n    for (var limit = 0; limit < 5; limit++) {\r\n      var changed = false, coords = cursorCoords(cm, pos);\r\n      var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);\r\n      var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),\r\n                                         Math.min(coords.top, endCoords.top) - margin,\r\n                                         Math.max(coords.left, endCoords.left),\r\n                                         Math.max(coords.bottom, endCoords.bottom) + margin);\r\n      var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;\r\n      if (scrollPos.scrollTop != null) {\r\n        setScrollTop(cm, scrollPos.scrollTop);\r\n        if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;\r\n      }\r\n      if (scrollPos.scrollLeft != null) {\r\n        setScrollLeft(cm, scrollPos.scrollLeft);\r\n        if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;\r\n      }\r\n      if (!changed) break;\r\n    }\r\n    return coords;\r\n  }\r\n\r\n  // Scroll a given set of coordinates into view (immediately).\r\n  function scrollIntoView(cm, x1, y1, x2, y2) {\r\n    var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);\r\n    if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);\r\n    if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);\r\n  }\r\n\r\n  // Calculate a new scroll position needed to scroll the given\r\n  // rectangle into view. Returns an object with scrollTop and\r\n  // scrollLeft properties. When these are undefined, the\r\n  // vertical/horizontal position does not need to be adjusted.\r\n  function calculateScrollPos(cm, x1, y1, x2, y2) {\r\n    var display = cm.display, snapMargin = textHeight(cm.display);\r\n    if (y1 < 0) y1 = 0;\r\n    var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;\r\n    var screen = displayHeight(cm), result = {};\r\n    if (y2 - y1 > screen) y2 = y1 + screen;\r\n    var docBottom = cm.doc.height + paddingVert(display);\r\n    var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;\r\n    if (y1 < screentop) {\r\n      result.scrollTop = atTop ? 0 : y1;\r\n    } else if (y2 > screentop + screen) {\r\n      var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);\r\n      if (newTop != screentop) result.scrollTop = newTop;\r\n    }\r\n\r\n    var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;\r\n    var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);\r\n    var tooWide = x2 - x1 > screenw;\r\n    if (tooWide) x2 = x1 + screenw;\r\n    if (x1 < 10)\r\n      result.scrollLeft = 0;\r\n    else if (x1 < screenleft)\r\n      result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));\r\n    else if (x2 > screenw + screenleft - 3)\r\n      result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;\r\n    return result;\r\n  }\r\n\r\n  // Store a relative adjustment to the scroll position in the current\r\n  // operation (to be applied when the operation finishes).\r\n  function addToScrollPos(cm, left, top) {\r\n    if (left != null || top != null) resolveScrollToPos(cm);\r\n    if (left != null)\r\n      cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;\r\n    if (top != null)\r\n      cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;\r\n  }\r\n\r\n  // Make sure that at the end of the operation the current cursor is\r\n  // shown.\r\n  function ensureCursorVisible(cm) {\r\n    resolveScrollToPos(cm);\r\n    var cur = cm.getCursor(), from = cur, to = cur;\r\n    if (!cm.options.lineWrapping) {\r\n      from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;\r\n      to = Pos(cur.line, cur.ch + 1);\r\n    }\r\n    cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};\r\n  }\r\n\r\n  // When an operation has its scrollToPos property set, and another\r\n  // scroll action is applied before the end of the operation, this\r\n  // 'simulates' scrolling that position into view in a cheap way, so\r\n  // that the effect of intermediate scroll commands is not ignored.\r\n  function resolveScrollToPos(cm) {\r\n    var range = cm.curOp.scrollToPos;\r\n    if (range) {\r\n      cm.curOp.scrollToPos = null;\r\n      var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);\r\n      var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),\r\n                                    Math.min(from.top, to.top) - range.margin,\r\n                                    Math.max(from.right, to.right),\r\n                                    Math.max(from.bottom, to.bottom) + range.margin);\r\n      cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);\r\n    }\r\n  }\r\n\r\n  // API UTILITIES\r\n\r\n  // Indent the given line. The how parameter can be \"smart\",\r\n  // \"add\"/null, \"subtract\", or \"prev\". When aggressive is false\r\n  // (typically set to true for forced single-line indents), empty\r\n  // lines are not indented, and places where the mode returns Pass\r\n  // are left alone.\r\n  function indentLine(cm, n, how, aggressive) {\r\n    var doc = cm.doc, state;\r\n    if (how == null) how = \"add\";\r\n    if (how == \"smart\") {\r\n      // Fall back to \"prev\" when the mode doesn't have an indentation\r\n      // method.\r\n      if (!doc.mode.indent) how = \"prev\";\r\n      else state = getStateBefore(cm, n);\r\n    }\r\n\r\n    var tabSize = cm.options.tabSize;\r\n    var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);\r\n    if (line.stateAfter) line.stateAfter = null;\r\n    var curSpaceString = line.text.match(/^\\s*/)[0], indentation;\r\n    if (!aggressive && !/\\S/.test(line.text)) {\r\n      indentation = 0;\r\n      how = \"not\";\r\n    } else if (how == \"smart\") {\r\n      indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);\r\n      if (indentation == Pass || indentation > 150) {\r\n        if (!aggressive) return;\r\n        how = \"prev\";\r\n      }\r\n    }\r\n    if (how == \"prev\") {\r\n      if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);\r\n      else indentation = 0;\r\n    } else if (how == \"add\") {\r\n      indentation = curSpace + cm.options.indentUnit;\r\n    } else if (how == \"subtract\") {\r\n      indentation = curSpace - cm.options.indentUnit;\r\n    } else if (typeof how == \"number\") {\r\n      indentation = curSpace + how;\r\n    }\r\n    indentation = Math.max(0, indentation);\r\n\r\n    var indentString = \"\", pos = 0;\r\n    if (cm.options.indentWithTabs)\r\n      for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += \"\\t\";}\r\n    if (pos < indentation) indentString += spaceStr(indentation - pos);\r\n\r\n    if (indentString != curSpaceString) {\r\n      replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), \"+input\");\r\n      line.stateAfter = null;\r\n      return true;\r\n    } else {\r\n      // Ensure that, if the cursor was in the whitespace at the start\r\n      // of the line, it is moved to the end of that space.\r\n      for (var i = 0; i < doc.sel.ranges.length; i++) {\r\n        var range = doc.sel.ranges[i];\r\n        if (range.head.line == n && range.head.ch < curSpaceString.length) {\r\n          var pos = Pos(n, curSpaceString.length);\r\n          replaceOneSelection(doc, i, new Range(pos, pos));\r\n          break;\r\n        }\r\n      }\r\n    }\r\n  }\r\n\r\n  // Utility for applying a change to a line by handle or number,\r\n  // returning the number and optionally registering the line as\r\n  // changed.\r\n  function changeLine(doc, handle, changeType, op) {\r\n    var no = handle, line = handle;\r\n    if (typeof handle == \"number\") line = getLine(doc, clipLine(doc, handle));\r\n    else no = lineNo(handle);\r\n    if (no == null) return null;\r\n    if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);\r\n    return line;\r\n  }\r\n\r\n  // Helper for deleting text near the selection(s), used to implement\r\n  // backspace, delete, and similar functionality.\r\n  function deleteNearSelection(cm, compute) {\r\n    var ranges = cm.doc.sel.ranges, kill = [];\r\n    // Build up a set of ranges to kill first, merging overlapping\r\n    // ranges.\r\n    for (var i = 0; i < ranges.length; i++) {\r\n      var toKill = compute(ranges[i]);\r\n      while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {\r\n        var replaced = kill.pop();\r\n        if (cmp(replaced.from, toKill.from) < 0) {\r\n          toKill.from = replaced.from;\r\n          break;\r\n        }\r\n      }\r\n      kill.push(toKill);\r\n    }\r\n    // Next, remove those actual ranges.\r\n    runInOp(cm, function() {\r\n      for (var i = kill.length - 1; i >= 0; i--)\r\n        replaceRange(cm.doc, \"\", kill[i].from, kill[i].to, \"+delete\");\r\n      ensureCursorVisible(cm);\r\n    });\r\n  }\r\n\r\n  // Used for horizontal relative motion. Dir is -1 or 1 (left or\r\n  // right), unit can be \"char\", \"column\" (like char, but doesn't\r\n  // cross line boundaries), \"word\" (across next word), or \"group\" (to\r\n  // the start of next group of word or non-word-non-whitespace\r\n  // chars). The visually param controls whether, in right-to-left\r\n  // text, direction 1 means to move towards the next index in the\r\n  // string, or towards the character to the right of the current\r\n  // position. The resulting position will have a hitSide=true\r\n  // property if it reached the end of the document.\r\n  function findPosH(doc, pos, dir, unit, visually) {\r\n    var line = pos.line, ch = pos.ch, origDir = dir;\r\n    var lineObj = getLine(doc, line);\r\n    var possible = true;\r\n    function findNextLine() {\r\n      var l = line + dir;\r\n      if (l < doc.first || l >= doc.first + doc.size) return (possible = false);\r\n      line = l;\r\n      return lineObj = getLine(doc, l);\r\n    }\r\n    function moveOnce(boundToLine) {\r\n      var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);\r\n      if (next == null) {\r\n        if (!boundToLine && findNextLine()) {\r\n          if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);\r\n          else ch = dir < 0 ? lineObj.text.length : 0;\r\n        } else return (possible = false);\r\n      } else ch = next;\r\n      return true;\r\n    }\r\n\r\n    if (unit == \"char\") moveOnce();\r\n    else if (unit == \"column\") moveOnce(true);\r\n    else if (unit == \"word\" || unit == \"group\") {\r\n      var sawType = null, group = unit == \"group\";\r\n      var helper = doc.cm && doc.cm.getHelper(pos, \"wordChars\");\r\n      for (var first = true;; first = false) {\r\n        if (dir < 0 && !moveOnce(!first)) break;\r\n        var cur = lineObj.text.charAt(ch) || \"\\n\";\r\n        var type = isWordChar(cur, helper) ? \"w\"\r\n          : group && cur == \"\\n\" ? \"n\"\r\n          : !group || /\\s/.test(cur) ? null\r\n          : \"p\";\r\n        if (group && !first && !type) type = \"s\";\r\n        if (sawType && sawType != type) {\r\n          if (dir < 0) {dir = 1; moveOnce();}\r\n          break;\r\n        }\r\n\r\n        if (type) sawType = type;\r\n        if (dir > 0 && !moveOnce(!first)) break;\r\n      }\r\n    }\r\n    var result = skipAtomic(doc, Pos(line, ch), origDir, true);\r\n    if (!possible) result.hitSide = true;\r\n    return result;\r\n  }\r\n\r\n  // For relative vertical movement. Dir may be -1 or 1. Unit can be\r\n  // \"page\" or \"line\". The resulting position will have a hitSide=true\r\n  // property if it reached the end of the document.\r\n  function findPosV(cm, pos, dir, unit) {\r\n    var doc = cm.doc, x = pos.left, y;\r\n    if (unit == \"page\") {\r\n      var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);\r\n      y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));\r\n    } else if (unit == \"line\") {\r\n      y = dir > 0 ? pos.bottom + 3 : pos.top - 3;\r\n    }\r\n    for (;;) {\r\n      var target = coordsChar(cm, x, y);\r\n      if (!target.outside) break;\r\n      if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }\r\n      y += dir * 5;\r\n    }\r\n    return target;\r\n  }\r\n\r\n  // EDITOR METHODS\r\n\r\n  // The publicly visible API. Note that methodOp(f) means\r\n  // 'wrap f in an operation, performed on its `this` parameter'.\r\n\r\n  // This is not the complete set of editor methods. Most of the\r\n  // methods defined on the Doc type are also injected into\r\n  // CodeMirror.prototype, for backwards compatibility and\r\n  // convenience.\r\n\r\n  CodeMirror.prototype = {\r\n    constructor: CodeMirror,\r\n    focus: function(){window.focus(); this.display.input.focus();},\r\n\r\n    setOption: function(option, value) {\r\n      var options = this.options, old = options[option];\r\n      if (options[option] == value && option != \"mode\") return;\r\n      options[option] = value;\r\n      if (optionHandlers.hasOwnProperty(option))\r\n        operation(this, optionHandlers[option])(this, value, old);\r\n    },\r\n\r\n    getOption: function(option) {return this.options[option];},\r\n    getDoc: function() {return this.doc;},\r\n\r\n    addKeyMap: function(map, bottom) {\r\n      this.state.keyMaps[bottom ? \"push\" : \"unshift\"](getKeyMap(map));\r\n    },\r\n    removeKeyMap: function(map) {\r\n      var maps = this.state.keyMaps;\r\n      for (var i = 0; i < maps.length; ++i)\r\n        if (maps[i] == map || maps[i].name == map) {\r\n          maps.splice(i, 1);\r\n          return true;\r\n        }\r\n    },\r\n\r\n    addOverlay: methodOp(function(spec, options) {\r\n      var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);\r\n      if (mode.startState) throw new Error(\"Overlays may not be stateful.\");\r\n      this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});\r\n      this.state.modeGen++;\r\n      regChange(this);\r\n    }),\r\n    removeOverlay: methodOp(function(spec) {\r\n      var overlays = this.state.overlays;\r\n      for (var i = 0; i < overlays.length; ++i) {\r\n        var cur = overlays[i].modeSpec;\r\n        if (cur == spec || typeof spec == \"string\" && cur.name == spec) {\r\n          overlays.splice(i, 1);\r\n          this.state.modeGen++;\r\n          regChange(this);\r\n          return;\r\n        }\r\n      }\r\n    }),\r\n\r\n    indentLine: methodOp(function(n, dir, aggressive) {\r\n      if (typeof dir != \"string\" && typeof dir != \"number\") {\r\n        if (dir == null) dir = this.options.smartIndent ? \"smart\" : \"prev\";\r\n        else dir = dir ? \"add\" : \"subtract\";\r\n      }\r\n      if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);\r\n    }),\r\n    indentSelection: methodOp(function(how) {\r\n      var ranges = this.doc.sel.ranges, end = -1;\r\n      for (var i = 0; i < ranges.length; i++) {\r\n        var range = ranges[i];\r\n        if (!range.empty()) {\r\n          var from = range.from(), to = range.to();\r\n          var start = Math.max(end, from.line);\r\n          end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;\r\n          for (var j = start; j < end; ++j)\r\n            indentLine(this, j, how);\r\n          var newRanges = this.doc.sel.ranges;\r\n          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)\r\n            replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);\r\n        } else if (range.head.line > end) {\r\n          indentLine(this, range.head.line, how, true);\r\n          end = range.head.line;\r\n          if (i == this.doc.sel.primIndex) ensureCursorVisible(this);\r\n        }\r\n      }\r\n    }),\r\n\r\n    // Fetch the parser token for a given character. Useful for hacks\r\n    // that want to inspect the mode state (say, for completion).\r\n    getTokenAt: function(pos, precise) {\r\n      return takeToken(this, pos, precise);\r\n    },\r\n\r\n    getLineTokens: function(line, precise) {\r\n      return takeToken(this, Pos(line), precise, true);\r\n    },\r\n\r\n    getTokenTypeAt: function(pos) {\r\n      pos = clipPos(this.doc, pos);\r\n      var styles = getLineStyles(this, getLine(this.doc, pos.line));\r\n      var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;\r\n      var type;\r\n      if (ch == 0) type = styles[2];\r\n      else for (;;) {\r\n        var mid = (before + after) >> 1;\r\n        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;\r\n        else if (styles[mid * 2 + 1] < ch) before = mid + 1;\r\n        else { type = styles[mid * 2 + 2]; break; }\r\n      }\r\n      var cut = type ? type.indexOf(\"cm-overlay \") : -1;\r\n      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);\r\n    },\r\n\r\n    getModeAt: function(pos) {\r\n      var mode = this.doc.mode;\r\n      if (!mode.innerMode) return mode;\r\n      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;\r\n    },\r\n\r\n    getHelper: function(pos, type) {\r\n      return this.getHelpers(pos, type)[0];\r\n    },\r\n\r\n    getHelpers: function(pos, type) {\r\n      var found = [];\r\n      if (!helpers.hasOwnProperty(type)) return found;\r\n      var help = helpers[type], mode = this.getModeAt(pos);\r\n      if (typeof mode[type] == \"string\") {\r\n        if (help[mode[type]]) found.push(help[mode[type]]);\r\n      } else if (mode[type]) {\r\n        for (var i = 0; i < mode[type].length; i++) {\r\n          var val = help[mode[type][i]];\r\n          if (val) found.push(val);\r\n        }\r\n      } else if (mode.helperType && help[mode.helperType]) {\r\n        found.push(help[mode.helperType]);\r\n      } else if (help[mode.name]) {\r\n        found.push(help[mode.name]);\r\n      }\r\n      for (var i = 0; i < help._global.length; i++) {\r\n        var cur = help._global[i];\r\n        if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)\r\n          found.push(cur.val);\r\n      }\r\n      return found;\r\n    },\r\n\r\n    getStateAfter: function(line, precise) {\r\n      var doc = this.doc;\r\n      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);\r\n      return getStateBefore(this, line + 1, precise);\r\n    },\r\n\r\n    cursorCoords: function(start, mode) {\r\n      var pos, range = this.doc.sel.primary();\r\n      if (start == null) pos = range.head;\r\n      else if (typeof start == \"object\") pos = clipPos(this.doc, start);\r\n      else pos = start ? range.from() : range.to();\r\n      return cursorCoords(this, pos, mode || \"page\");\r\n    },\r\n\r\n    charCoords: function(pos, mode) {\r\n      return charCoords(this, clipPos(this.doc, pos), mode || \"page\");\r\n    },\r\n\r\n    coordsChar: function(coords, mode) {\r\n      coords = fromCoordSystem(this, coords, mode || \"page\");\r\n      return coordsChar(this, coords.left, coords.top);\r\n    },\r\n\r\n    lineAtHeight: function(height, mode) {\r\n      height = fromCoordSystem(this, {top: height, left: 0}, mode || \"page\").top;\r\n      return lineAtHeight(this.doc, height + this.display.viewOffset);\r\n    },\r\n    heightAtLine: function(line, mode) {\r\n      var end = false, lineObj;\r\n      if (typeof line == \"number\") {\r\n        var last = this.doc.first + this.doc.size - 1;\r\n        if (line < this.doc.first) line = this.doc.first;\r\n        else if (line > last) { line = last; end = true; }\r\n        lineObj = getLine(this.doc, line);\r\n      } else {\r\n        lineObj = line;\r\n      }\r\n      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || \"page\").top +\r\n        (end ? this.doc.height - heightAtLine(lineObj) : 0);\r\n    },\r\n\r\n    defaultTextHeight: function() { return textHeight(this.display); },\r\n    defaultCharWidth: function() { return charWidth(this.display); },\r\n\r\n    setGutterMarker: methodOp(function(line, gutterID, value) {\r\n      return changeLine(this.doc, line, \"gutter\", function(line) {\r\n        var markers = line.gutterMarkers || (line.gutterMarkers = {});\r\n        markers[gutterID] = value;\r\n        if (!value && isEmpty(markers)) line.gutterMarkers = null;\r\n        return true;\r\n      });\r\n    }),\r\n\r\n    clearGutter: methodOp(function(gutterID) {\r\n      var cm = this, doc = cm.doc, i = doc.first;\r\n      doc.iter(function(line) {\r\n        if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\r\n          line.gutterMarkers[gutterID] = null;\r\n          regLineChange(cm, i, \"gutter\");\r\n          if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;\r\n        }\r\n        ++i;\r\n      });\r\n    }),\r\n\r\n    lineInfo: function(line) {\r\n      if (typeof line == \"number\") {\r\n        if (!isLine(this.doc, line)) return null;\r\n        var n = line;\r\n        line = getLine(this.doc, line);\r\n        if (!line) return null;\r\n      } else {\r\n        var n = lineNo(line);\r\n        if (n == null) return null;\r\n      }\r\n      return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\r\n              textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,\r\n              widgets: line.widgets};\r\n    },\r\n\r\n    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},\r\n\r\n    addWidget: function(pos, node, scroll, vert, horiz) {\r\n      var display = this.display;\r\n      pos = cursorCoords(this, clipPos(this.doc, pos));\r\n      var top = pos.bottom, left = pos.left;\r\n      node.style.position = \"absolute\";\r\n      node.setAttribute(\"cm-ignore-events\", \"true\");\r\n      this.display.input.setUneditable(node);\r\n      display.sizer.appendChild(node);\r\n      if (vert == \"over\") {\r\n        top = pos.top;\r\n      } else if (vert == \"above\" || vert == \"near\") {\r\n        var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),\r\n        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);\r\n        // Default to positioning above (if specified and possible); otherwise default to positioning below\r\n        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)\r\n          top = pos.top - node.offsetHeight;\r\n        else if (pos.bottom + node.offsetHeight <= vspace)\r\n          top = pos.bottom;\r\n        if (left + node.offsetWidth > hspace)\r\n          left = hspace - node.offsetWidth;\r\n      }\r\n      node.style.top = top + \"px\";\r\n      node.style.left = node.style.right = \"\";\r\n      if (horiz == \"right\") {\r\n        left = display.sizer.clientWidth - node.offsetWidth;\r\n        node.style.right = \"0px\";\r\n      } else {\r\n        if (horiz == \"left\") left = 0;\r\n        else if (horiz == \"middle\") left = (display.sizer.clientWidth - node.offsetWidth) / 2;\r\n        node.style.left = left + \"px\";\r\n      }\r\n      if (scroll)\r\n        scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);\r\n    },\r\n\r\n    triggerOnKeyDown: methodOp(onKeyDown),\r\n    triggerOnKeyPress: methodOp(onKeyPress),\r\n    triggerOnKeyUp: onKeyUp,\r\n\r\n    execCommand: function(cmd) {\r\n      if (commands.hasOwnProperty(cmd))\r\n        return commands[cmd].call(null, this);\r\n    },\r\n\r\n    triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),\r\n\r\n    findPosH: function(from, amount, unit, visually) {\r\n      var dir = 1;\r\n      if (amount < 0) { dir = -1; amount = -amount; }\r\n      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {\r\n        cur = findPosH(this.doc, cur, dir, unit, visually);\r\n        if (cur.hitSide) break;\r\n      }\r\n      return cur;\r\n    },\r\n\r\n    moveH: methodOp(function(dir, unit) {\r\n      var cm = this;\r\n      cm.extendSelectionsBy(function(range) {\r\n        if (cm.display.shift || cm.doc.extend || range.empty())\r\n          return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);\r\n        else\r\n          return dir < 0 ? range.from() : range.to();\r\n      }, sel_move);\r\n    }),\r\n\r\n    deleteH: methodOp(function(dir, unit) {\r\n      var sel = this.doc.sel, doc = this.doc;\r\n      if (sel.somethingSelected())\r\n        doc.replaceSelection(\"\", null, \"+delete\");\r\n      else\r\n        deleteNearSelection(this, function(range) {\r\n          var other = findPosH(doc, range.head, dir, unit, false);\r\n          return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};\r\n        });\r\n    }),\r\n\r\n    findPosV: function(from, amount, unit, goalColumn) {\r\n      var dir = 1, x = goalColumn;\r\n      if (amount < 0) { dir = -1; amount = -amount; }\r\n      for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {\r\n        var coords = cursorCoords(this, cur, \"div\");\r\n        if (x == null) x = coords.left;\r\n        else coords.left = x;\r\n        cur = findPosV(this, coords, dir, unit);\r\n        if (cur.hitSide) break;\r\n      }\r\n      return cur;\r\n    },\r\n\r\n    moveV: methodOp(function(dir, unit) {\r\n      var cm = this, doc = this.doc, goals = [];\r\n      var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();\r\n      doc.extendSelectionsBy(function(range) {\r\n        if (collapse)\r\n          return dir < 0 ? range.from() : range.to();\r\n        var headPos = cursorCoords(cm, range.head, \"div\");\r\n        if (range.goalColumn != null) headPos.left = range.goalColumn;\r\n        goals.push(headPos.left);\r\n        var pos = findPosV(cm, headPos, dir, unit);\r\n        if (unit == \"page\" && range == doc.sel.primary())\r\n          addToScrollPos(cm, null, charCoords(cm, pos, \"div\").top - headPos.top);\r\n        return pos;\r\n      }, sel_move);\r\n      if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)\r\n        doc.sel.ranges[i].goalColumn = goals[i];\r\n    }),\r\n\r\n    // Find the word at the given position (as returned by coordsChar).\r\n    findWordAt: function(pos) {\r\n      var doc = this.doc, line = getLine(doc, pos.line).text;\r\n      var start = pos.ch, end = pos.ch;\r\n      if (line) {\r\n        var helper = this.getHelper(pos, \"wordChars\");\r\n        if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;\r\n        var startChar = line.charAt(start);\r\n        var check = isWordChar(startChar, helper)\r\n          ? function(ch) { return isWordChar(ch, helper); }\r\n          : /\\s/.test(startChar) ? function(ch) {return /\\s/.test(ch);}\r\n          : function(ch) {return !/\\s/.test(ch) && !isWordChar(ch);};\r\n        while (start > 0 && check(line.charAt(start - 1))) --start;\r\n        while (end < line.length && check(line.charAt(end))) ++end;\r\n      }\r\n      return new Range(Pos(pos.line, start), Pos(pos.line, end));\r\n    },\r\n\r\n    toggleOverwrite: function(value) {\r\n      if (value != null && value == this.state.overwrite) return;\r\n      if (this.state.overwrite = !this.state.overwrite)\r\n        addClass(this.display.cursorDiv, \"CodeMirror-overwrite\");\r\n      else\r\n        rmClass(this.display.cursorDiv, \"CodeMirror-overwrite\");\r\n\r\n      signal(this, \"overwriteToggle\", this, this.state.overwrite);\r\n    },\r\n    hasFocus: function() { return this.display.input.getField() == activeElt(); },\r\n\r\n    scrollTo: methodOp(function(x, y) {\r\n      if (x != null || y != null) resolveScrollToPos(this);\r\n      if (x != null) this.curOp.scrollLeft = x;\r\n      if (y != null) this.curOp.scrollTop = y;\r\n    }),\r\n    getScrollInfo: function() {\r\n      var scroller = this.display.scroller;\r\n      return {left: scroller.scrollLeft, top: scroller.scrollTop,\r\n              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,\r\n              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,\r\n              clientHeight: displayHeight(this), clientWidth: displayWidth(this)};\r\n    },\r\n\r\n    scrollIntoView: methodOp(function(range, margin) {\r\n      if (range == null) {\r\n        range = {from: this.doc.sel.primary().head, to: null};\r\n        if (margin == null) margin = this.options.cursorScrollMargin;\r\n      } else if (typeof range == \"number\") {\r\n        range = {from: Pos(range, 0), to: null};\r\n      } else if (range.from == null) {\r\n        range = {from: range, to: null};\r\n      }\r\n      if (!range.to) range.to = range.from;\r\n      range.margin = margin || 0;\r\n\r\n      if (range.from.line != null) {\r\n        resolveScrollToPos(this);\r\n        this.curOp.scrollToPos = range;\r\n      } else {\r\n        var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),\r\n                                      Math.min(range.from.top, range.to.top) - range.margin,\r\n                                      Math.max(range.from.right, range.to.right),\r\n                                      Math.max(range.from.bottom, range.to.bottom) + range.margin);\r\n        this.scrollTo(sPos.scrollLeft, sPos.scrollTop);\r\n      }\r\n    }),\r\n\r\n    setSize: methodOp(function(width, height) {\r\n      var cm = this;\r\n      function interpret(val) {\r\n        return typeof val == \"number\" || /^\\d+$/.test(String(val)) ? val + \"px\" : val;\r\n      }\r\n      if (width != null) cm.display.wrapper.style.width = interpret(width);\r\n      if (height != null) cm.display.wrapper.style.height = interpret(height);\r\n      if (cm.options.lineWrapping) clearLineMeasurementCache(this);\r\n      var lineNo = cm.display.viewFrom;\r\n      cm.doc.iter(lineNo, cm.display.viewTo, function(line) {\r\n        if (line.widgets) for (var i = 0; i < line.widgets.length; i++)\r\n          if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, \"widget\"); break; }\r\n        ++lineNo;\r\n      });\r\n      cm.curOp.forceUpdate = true;\r\n      signal(cm, \"refresh\", this);\r\n    }),\r\n\r\n    operation: function(f){return runInOp(this, f);},\r\n\r\n    refresh: methodOp(function() {\r\n      var oldHeight = this.display.cachedTextHeight;\r\n      regChange(this);\r\n      this.curOp.forceUpdate = true;\r\n      clearCaches(this);\r\n      this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);\r\n      updateGutterSpace(this);\r\n      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)\r\n        estimateLineHeights(this);\r\n      signal(this, \"refresh\", this);\r\n    }),\r\n\r\n    swapDoc: methodOp(function(doc) {\r\n      var old = this.doc;\r\n      old.cm = null;\r\n      attachDoc(this, doc);\r\n      clearCaches(this);\r\n      this.display.input.reset();\r\n      this.scrollTo(doc.scrollLeft, doc.scrollTop);\r\n      this.curOp.forceScroll = true;\r\n      signalLater(this, \"swapDoc\", this, old);\r\n      return old;\r\n    }),\r\n\r\n    getInputField: function(){return this.display.input.getField();},\r\n    getWrapperElement: function(){return this.display.wrapper;},\r\n    getScrollerElement: function(){return this.display.scroller;},\r\n    getGutterElement: function(){return this.display.gutters;}\r\n  };\r\n  eventMixin(CodeMirror);\r\n\r\n  // OPTION DEFAULTS\r\n\r\n  // The default configuration options.\r\n  var defaults = CodeMirror.defaults = {};\r\n  // Functions to run when options are changed.\r\n  var optionHandlers = CodeMirror.optionHandlers = {};\r\n\r\n  function option(name, deflt, handle, notOnInit) {\r\n    CodeMirror.defaults[name] = deflt;\r\n    if (handle) optionHandlers[name] =\r\n      notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;\r\n  }\r\n\r\n  // Passed to option handlers when there is no old value.\r\n  var Init = CodeMirror.Init = {toString: function(){return \"CodeMirror.Init\";}};\r\n\r\n  // These two are, on init, called from the constructor because they\r\n  // have to be initialized before the editor can start at all.\r\n  option(\"value\", \"\", function(cm, val) {\r\n    cm.setValue(val);\r\n  }, true);\r\n  option(\"mode\", null, function(cm, val) {\r\n    cm.doc.modeOption = val;\r\n    loadMode(cm);\r\n  }, true);\r\n\r\n  option(\"indentUnit\", 2, loadMode, true);\r\n  option(\"indentWithTabs\", false);\r\n  option(\"smartIndent\", true);\r\n  option(\"tabSize\", 4, function(cm) {\r\n    resetModeState(cm);\r\n    clearCaches(cm);\r\n    regChange(cm);\r\n  }, true);\r\n  option(\"lineSeparator\", null, function(cm, val) {\r\n    cm.doc.lineSep = val;\r\n    if (!val) return;\r\n    var newBreaks = [], lineNo = cm.doc.first;\r\n    cm.doc.iter(function(line) {\r\n      for (var pos = 0;;) {\r\n        var found = line.text.indexOf(val, pos);\r\n        if (found == -1) break;\r\n        pos = found + val.length;\r\n        newBreaks.push(Pos(lineNo, found));\r\n      }\r\n      lineNo++;\r\n    });\r\n    for (var i = newBreaks.length - 1; i >= 0; i--)\r\n      replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))\r\n  });\r\n  option(\"specialChars\", /[\\t\\u0000-\\u0019\\u00ad\\u200b-\\u200f\\u2028\\u2029\\ufeff]/g, function(cm, val, old) {\r\n    cm.state.specialChars = new RegExp(val.source + (val.test(\"\\t\") ? \"\" : \"|\\t\"), \"g\");\r\n    if (old != CodeMirror.Init) cm.refresh();\r\n  });\r\n  option(\"specialCharPlaceholder\", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);\r\n  option(\"electricChars\", true);\r\n  option(\"inputStyle\", mobile ? \"contenteditable\" : \"textarea\", function() {\r\n    throw new Error(\"inputStyle can not (yet) be changed in a running editor\"); // FIXME\r\n  }, true);\r\n  option(\"rtlMoveVisually\", !windows);\r\n  option(\"wholeLineUpdateBefore\", true);\r\n\r\n  option(\"theme\", \"default\", function(cm) {\r\n    themeChanged(cm);\r\n    guttersChanged(cm);\r\n  }, true);\r\n  option(\"keyMap\", \"default\", function(cm, val, old) {\r\n    var next = getKeyMap(val);\r\n    var prev = old != CodeMirror.Init && getKeyMap(old);\r\n    if (prev && prev.detach) prev.detach(cm, next);\r\n    if (next.attach) next.attach(cm, prev || null);\r\n  });\r\n  option(\"extraKeys\", null);\r\n\r\n  option(\"lineWrapping\", false, wrappingChanged, true);\r\n  option(\"gutters\", [], function(cm) {\r\n    setGuttersForLineNumbers(cm.options);\r\n    guttersChanged(cm);\r\n  }, true);\r\n  option(\"fixedGutter\", true, function(cm, val) {\r\n    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + \"px\" : \"0\";\r\n    cm.refresh();\r\n  }, true);\r\n  option(\"coverGutterNextToScrollbar\", false, function(cm) {updateScrollbars(cm);}, true);\r\n  option(\"scrollbarStyle\", \"native\", function(cm) {\r\n    initScrollbars(cm);\r\n    updateScrollbars(cm);\r\n    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);\r\n    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);\r\n  }, true);\r\n  option(\"lineNumbers\", false, function(cm) {\r\n    setGuttersForLineNumbers(cm.options);\r\n    guttersChanged(cm);\r\n  }, true);\r\n  option(\"firstLineNumber\", 1, guttersChanged, true);\r\n  option(\"lineNumberFormatter\", function(integer) {return integer;}, guttersChanged, true);\r\n  option(\"showCursorWhenSelecting\", false, updateSelection, true);\r\n\r\n  option(\"resetSelectionOnContextMenu\", true);\r\n  option(\"lineWiseCopyCut\", true);\r\n\r\n  option(\"readOnly\", false, function(cm, val) {\r\n    if (val == \"nocursor\") {\r\n      onBlur(cm);\r\n      cm.display.input.blur();\r\n      cm.display.disabled = true;\r\n    } else {\r\n      cm.display.disabled = false;\r\n    }\r\n    cm.display.input.readOnlyChanged(val)\r\n  });\r\n  option(\"disableInput\", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);\r\n  option(\"dragDrop\", true, dragDropChanged);\r\n  option(\"allowDropFileTypes\", null);\r\n\r\n  option(\"cursorBlinkRate\", 530);\r\n  option(\"cursorScrollMargin\", 0);\r\n  option(\"cursorHeight\", 1, updateSelection, true);\r\n  option(\"singleCursorHeightPerLine\", true, updateSelection, true);\r\n  option(\"workTime\", 100);\r\n  option(\"workDelay\", 100);\r\n  option(\"flattenSpans\", true, resetModeState, true);\r\n  option(\"addModeClass\", false, resetModeState, true);\r\n  option(\"pollInterval\", 100);\r\n  option(\"undoDepth\", 200, function(cm, val){cm.doc.history.undoDepth = val;});\r\n  option(\"historyEventDelay\", 1250);\r\n  option(\"viewportMargin\", 10, function(cm){cm.refresh();}, true);\r\n  option(\"maxHighlightLength\", 10000, resetModeState, true);\r\n  option(\"moveInputWithCursor\", true, function(cm, val) {\r\n    if (!val) cm.display.input.resetPosition();\r\n  });\r\n\r\n  option(\"tabindex\", null, function(cm, val) {\r\n    cm.display.input.getField().tabIndex = val || \"\";\r\n  });\r\n  option(\"autofocus\", null);\r\n\r\n  // MODE DEFINITION AND QUERYING\r\n\r\n  // Known modes, by name and by MIME\r\n  var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};\r\n\r\n  // Extra arguments are stored as the mode's dependencies, which is\r\n  // used by (legacy) mechanisms like loadmode.js to automatically\r\n  // load a mode. (Preferred mechanism is the require/define calls.)\r\n  CodeMirror.defineMode = function(name, mode) {\r\n    if (!CodeMirror.defaults.mode && name != \"null\") CodeMirror.defaults.mode = name;\r\n    if (arguments.length > 2)\r\n      mode.dependencies = Array.prototype.slice.call(arguments, 2);\r\n    modes[name] = mode;\r\n  };\r\n\r\n  CodeMirror.defineMIME = function(mime, spec) {\r\n    mimeModes[mime] = spec;\r\n  };\r\n\r\n  // Given a MIME type, a {name, ...options} config object, or a name\r\n  // string, return a mode config object.\r\n  CodeMirror.resolveMode = function(spec) {\r\n    if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec)) {\r\n      spec = mimeModes[spec];\r\n    } else if (spec && typeof spec.name == \"string\" && mimeModes.hasOwnProperty(spec.name)) {\r\n      var found = mimeModes[spec.name];\r\n      if (typeof found == \"string\") found = {name: found};\r\n      spec = createObj(found, spec);\r\n      spec.name = found.name;\r\n    } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec)) {\r\n      return CodeMirror.resolveMode(\"application/xml\");\r\n    }\r\n    if (typeof spec == \"string\") return {name: spec};\r\n    else return spec || {name: \"null\"};\r\n  };\r\n\r\n  // Given a mode spec (anything that resolveMode accepts), find and\r\n  // initialize an actual mode object.\r\n  CodeMirror.getMode = function(options, spec) {\r\n    var spec = CodeMirror.resolveMode(spec);\r\n    var mfactory = modes[spec.name];\r\n    if (!mfactory) return CodeMirror.getMode(options, \"text/plain\");\r\n    var modeObj = mfactory(options, spec);\r\n    if (modeExtensions.hasOwnProperty(spec.name)) {\r\n      var exts = modeExtensions[spec.name];\r\n      for (var prop in exts) {\r\n        if (!exts.hasOwnProperty(prop)) continue;\r\n        if (modeObj.hasOwnProperty(prop)) modeObj[\"_\" + prop] = modeObj[prop];\r\n        modeObj[prop] = exts[prop];\r\n      }\r\n    }\r\n    modeObj.name = spec.name;\r\n    if (spec.helperType) modeObj.helperType = spec.helperType;\r\n    if (spec.modeProps) for (var prop in spec.modeProps)\r\n      modeObj[prop] = spec.modeProps[prop];\r\n\r\n    return modeObj;\r\n  };\r\n\r\n  // Minimal default mode.\r\n  CodeMirror.defineMode(\"null\", function() {\r\n    return {token: function(stream) {stream.skipToEnd();}};\r\n  });\r\n  CodeMirror.defineMIME(\"text/plain\", \"null\");\r\n\r\n  // This can be used to attach properties to mode objects from\r\n  // outside the actual mode definition.\r\n  var modeExtensions = CodeMirror.modeExtensions = {};\r\n  CodeMirror.extendMode = function(mode, properties) {\r\n    var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});\r\n    copyObj(properties, exts);\r\n  };\r\n\r\n  // EXTENSIONS\r\n\r\n  CodeMirror.defineExtension = function(name, func) {\r\n    CodeMirror.prototype[name] = func;\r\n  };\r\n  CodeMirror.defineDocExtension = function(name, func) {\r\n    Doc.prototype[name] = func;\r\n  };\r\n  CodeMirror.defineOption = option;\r\n\r\n  var initHooks = [];\r\n  CodeMirror.defineInitHook = function(f) {initHooks.push(f);};\r\n\r\n  var helpers = CodeMirror.helpers = {};\r\n  CodeMirror.registerHelper = function(type, name, value) {\r\n    if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};\r\n    helpers[type][name] = value;\r\n  };\r\n  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {\r\n    CodeMirror.registerHelper(type, name, value);\r\n    helpers[type]._global.push({pred: predicate, val: value});\r\n  };\r\n\r\n  // MODE STATE HANDLING\r\n\r\n  // Utility functions for working with state. Exported because nested\r\n  // modes need to do this for their inner modes.\r\n\r\n  var copyState = CodeMirror.copyState = function(mode, state) {\r\n    if (state === true) return state;\r\n    if (mode.copyState) return mode.copyState(state);\r\n    var nstate = {};\r\n    for (var n in state) {\r\n      var val = state[n];\r\n      if (val instanceof Array) val = val.concat([]);\r\n      nstate[n] = val;\r\n    }\r\n    return nstate;\r\n  };\r\n\r\n  var startState = CodeMirror.startState = function(mode, a1, a2) {\r\n    return mode.startState ? mode.startState(a1, a2) : true;\r\n  };\r\n\r\n  // Given a mode and a state (for that mode), find the inner mode and\r\n  // state at the position that the state refers to.\r\n  CodeMirror.innerMode = function(mode, state) {\r\n    while (mode.innerMode) {\r\n      var info = mode.innerMode(state);\r\n      if (!info || info.mode == mode) break;\r\n      state = info.state;\r\n      mode = info.mode;\r\n    }\r\n    return info || {mode: mode, state: state};\r\n  };\r\n\r\n  // STANDARD COMMANDS\r\n\r\n  // Commands are parameter-less actions that can be performed on an\r\n  // editor, mostly used for keybindings.\r\n  var commands = CodeMirror.commands = {\r\n    selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},\r\n    singleSelection: function(cm) {\r\n      cm.setSelection(cm.getCursor(\"anchor\"), cm.getCursor(\"head\"), sel_dontScroll);\r\n    },\r\n    killLine: function(cm) {\r\n      deleteNearSelection(cm, function(range) {\r\n        if (range.empty()) {\r\n          var len = getLine(cm.doc, range.head.line).text.length;\r\n          if (range.head.ch == len && range.head.line < cm.lastLine())\r\n            return {from: range.head, to: Pos(range.head.line + 1, 0)};\r\n          else\r\n            return {from: range.head, to: Pos(range.head.line, len)};\r\n        } else {\r\n          return {from: range.from(), to: range.to()};\r\n        }\r\n      });\r\n    },\r\n    deleteLine: function(cm) {\r\n      deleteNearSelection(cm, function(range) {\r\n        return {from: Pos(range.from().line, 0),\r\n                to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};\r\n      });\r\n    },\r\n    delLineLeft: function(cm) {\r\n      deleteNearSelection(cm, function(range) {\r\n        return {from: Pos(range.from().line, 0), to: range.from()};\r\n      });\r\n    },\r\n    delWrappedLineLeft: function(cm) {\r\n      deleteNearSelection(cm, function(range) {\r\n        var top = cm.charCoords(range.head, \"div\").top + 5;\r\n        var leftPos = cm.coordsChar({left: 0, top: top}, \"div\");\r\n        return {from: leftPos, to: range.from()};\r\n      });\r\n    },\r\n    delWrappedLineRight: function(cm) {\r\n      deleteNearSelection(cm, function(range) {\r\n        var top = cm.charCoords(range.head, \"div\").top + 5;\r\n        var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\");\r\n        return {from: range.from(), to: rightPos };\r\n      });\r\n    },\r\n    undo: function(cm) {cm.undo();},\r\n    redo: function(cm) {cm.redo();},\r\n    undoSelection: function(cm) {cm.undoSelection();},\r\n    redoSelection: function(cm) {cm.redoSelection();},\r\n    goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},\r\n    goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},\r\n    goLineStart: function(cm) {\r\n      cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },\r\n                            {origin: \"+move\", bias: 1});\r\n    },\r\n    goLineStartSmart: function(cm) {\r\n      cm.extendSelectionsBy(function(range) {\r\n        return lineStartSmart(cm, range.head);\r\n      }, {origin: \"+move\", bias: 1});\r\n    },\r\n    goLineEnd: function(cm) {\r\n      cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },\r\n                            {origin: \"+move\", bias: -1});\r\n    },\r\n    goLineRight: function(cm) {\r\n      cm.extendSelectionsBy(function(range) {\r\n        var top = cm.charCoords(range.head, \"div\").top + 5;\r\n        return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\");\r\n      }, sel_move);\r\n    },\r\n    goLineLeft: function(cm) {\r\n      cm.extendSelectionsBy(function(range) {\r\n        var top = cm.charCoords(range.head, \"div\").top + 5;\r\n        return cm.coordsChar({left: 0, top: top}, \"div\");\r\n      }, sel_move);\r\n    },\r\n    goLineLeftSmart: function(cm) {\r\n      cm.extendSelectionsBy(function(range) {\r\n        var top = cm.charCoords(range.head, \"div\").top + 5;\r\n        var pos = cm.coordsChar({left: 0, top: top}, \"div\");\r\n        if (pos.ch < cm.getLine(pos.line).search(/\\S/)) return lineStartSmart(cm, range.head);\r\n        return pos;\r\n      }, sel_move);\r\n    },\r\n    goLineUp: function(cm) {cm.moveV(-1, \"line\");},\r\n    goLineDown: function(cm) {cm.moveV(1, \"line\");},\r\n    goPageUp: function(cm) {cm.moveV(-1, \"page\");},\r\n    goPageDown: function(cm) {cm.moveV(1, \"page\");},\r\n    goCharLeft: function(cm) {cm.moveH(-1, \"char\");},\r\n    goCharRight: function(cm) {cm.moveH(1, \"char\");},\r\n    goColumnLeft: function(cm) {cm.moveH(-1, \"column\");},\r\n    goColumnRight: function(cm) {cm.moveH(1, \"column\");},\r\n    goWordLeft: function(cm) {cm.moveH(-1, \"word\");},\r\n    goGroupRight: function(cm) {cm.moveH(1, \"group\");},\r\n    goGroupLeft: function(cm) {cm.moveH(-1, \"group\");},\r\n    goWordRight: function(cm) {cm.moveH(1, \"word\");},\r\n    delCharBefore: function(cm) {cm.deleteH(-1, \"char\");},\r\n    delCharAfter: function(cm) {cm.deleteH(1, \"char\");},\r\n    delWordBefore: function(cm) {cm.deleteH(-1, \"word\");},\r\n    delWordAfter: function(cm) {cm.deleteH(1, \"word\");},\r\n    delGroupBefore: function(cm) {cm.deleteH(-1, \"group\");},\r\n    delGroupAfter: function(cm) {cm.deleteH(1, \"group\");},\r\n    indentAuto: function(cm) {cm.indentSelection(\"smart\");},\r\n    indentMore: function(cm) {cm.indentSelection(\"add\");},\r\n    indentLess: function(cm) {cm.indentSelection(\"subtract\");},\r\n    insertTab: function(cm) {cm.replaceSelection(\"\\t\");},\r\n    insertSoftTab: function(cm) {\r\n      var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;\r\n      for (var i = 0; i < ranges.length; i++) {\r\n        var pos = ranges[i].from();\r\n        var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);\r\n        spaces.push(new Array(tabSize - col % tabSize + 1).join(\" \"));\r\n      }\r\n      cm.replaceSelections(spaces);\r\n    },\r\n    defaultTab: function(cm) {\r\n      if (cm.somethingSelected()) cm.indentSelection(\"add\");\r\n      else cm.execCommand(\"insertTab\");\r\n    },\r\n    transposeChars: function(cm) {\r\n      runInOp(cm, function() {\r\n        var ranges = cm.listSelections(), newSel = [];\r\n        for (var i = 0; i < ranges.length; i++) {\r\n          var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;\r\n          if (line) {\r\n            if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);\r\n            if (cur.ch > 0) {\r\n              cur = new Pos(cur.line, cur.ch + 1);\r\n              cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),\r\n                              Pos(cur.line, cur.ch - 2), cur, \"+transpose\");\r\n            } else if (cur.line > cm.doc.first) {\r\n              var prev = getLine(cm.doc, cur.line - 1).text;\r\n              if (prev)\r\n                cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +\r\n                                prev.charAt(prev.length - 1),\r\n                                Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), \"+transpose\");\r\n            }\r\n          }\r\n          newSel.push(new Range(cur, cur));\r\n        }\r\n        cm.setSelections(newSel);\r\n      });\r\n    },\r\n    newlineAndIndent: function(cm) {\r\n      runInOp(cm, function() {\r\n        var len = cm.listSelections().length;\r\n        for (var i = 0; i < len; i++) {\r\n          var range = cm.listSelections()[i];\r\n          cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, \"+input\");\r\n          cm.indentLine(range.from().line + 1, null, true);\r\n        }\r\n        ensureCursorVisible(cm);\r\n      });\r\n    },\r\n    toggleOverwrite: function(cm) {cm.toggleOverwrite();}\r\n  };\r\n\r\n\r\n  // STANDARD KEYMAPS\r\n\r\n  var keyMap = CodeMirror.keyMap = {};\r\n\r\n  keyMap.basic = {\r\n    \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\r\n    \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\r\n    \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Shift-Backspace\": \"delCharBefore\",\r\n    \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\r\n    \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\",\r\n    \"Esc\": \"singleSelection\"\r\n  };\r\n  // Note that the save and find-related commands aren't defined by\r\n  // default. User code or addons can define them. Unknown commands\r\n  // are simply ignored.\r\n  keyMap.pcDefault = {\r\n    \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\r\n    \"Ctrl-Home\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Up\": \"goLineUp\", \"Ctrl-Down\": \"goLineDown\",\r\n    \"Ctrl-Left\": \"goGroupLeft\", \"Ctrl-Right\": \"goGroupRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\r\n    \"Ctrl-Backspace\": \"delGroupBefore\", \"Ctrl-Delete\": \"delGroupAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\r\n    \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\r\n    \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\r\n    \"Ctrl-U\": \"undoSelection\", \"Shift-Ctrl-U\": \"redoSelection\", \"Alt-U\": \"redoSelection\",\r\n    fallthrough: \"basic\"\r\n  };\r\n  // Very basic readline/emacs-style bindings, which are standard on Mac.\r\n  keyMap.emacsy = {\r\n    \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\r\n    \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\r\n    \"Ctrl-V\": \"goPageDown\", \"Shift-Ctrl-V\": \"goPageUp\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\r\n    \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\"\r\n  };\r\n  keyMap.macDefault = {\r\n    \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\r\n    \"Cmd-Home\": \"goDocStart\", \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goGroupLeft\",\r\n    \"Alt-Right\": \"goGroupRight\", \"Cmd-Left\": \"goLineLeft\", \"Cmd-Right\": \"goLineRight\", \"Alt-Backspace\": \"delGroupBefore\",\r\n    \"Ctrl-Alt-Backspace\": \"delGroupAfter\", \"Alt-Delete\": \"delGroupAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\r\n    \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\r\n    \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\", \"Cmd-Backspace\": \"delWrappedLineLeft\", \"Cmd-Delete\": \"delWrappedLineRight\",\r\n    \"Cmd-U\": \"undoSelection\", \"Shift-Cmd-U\": \"redoSelection\", \"Ctrl-Up\": \"goDocStart\", \"Ctrl-Down\": \"goDocEnd\",\r\n    fallthrough: [\"basic\", \"emacsy\"]\r\n  };\r\n  keyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault;\r\n\r\n  // KEYMAP DISPATCH\r\n\r\n  function normalizeKeyName(name) {\r\n    var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];\r\n    var alt, ctrl, shift, cmd;\r\n    for (var i = 0; i < parts.length - 1; i++) {\r\n      var mod = parts[i];\r\n      if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;\r\n      else if (/^a(lt)?$/i.test(mod)) alt = true;\r\n      else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;\r\n      else if (/^s(hift)$/i.test(mod)) shift = true;\r\n      else throw new Error(\"Unrecognized modifier name: \" + mod);\r\n    }\r\n    if (alt) name = \"Alt-\" + name;\r\n    if (ctrl) name = \"Ctrl-\" + name;\r\n    if (cmd) name = \"Cmd-\" + name;\r\n    if (shift) name = \"Shift-\" + name;\r\n    return name;\r\n  }\r\n\r\n  // This is a kludge to keep keymaps mostly working as raw objects\r\n  // (backwards compatibility) while at the same time support features\r\n  // like normalization and multi-stroke key bindings. It compiles a\r\n  // new normalized keymap, and then updates the old object to reflect\r\n  // this.\r\n  CodeMirror.normalizeKeyMap = function(keymap) {\r\n    var copy = {};\r\n    for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {\r\n      var value = keymap[keyname];\r\n      if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;\r\n      if (value == \"...\") { delete keymap[keyname]; continue; }\r\n\r\n      var keys = map(keyname.split(\" \"), normalizeKeyName);\r\n      for (var i = 0; i < keys.length; i++) {\r\n        var val, name;\r\n        if (i == keys.length - 1) {\r\n          name = keys.join(\" \");\r\n          val = value;\r\n        } else {\r\n          name = keys.slice(0, i + 1).join(\" \");\r\n          val = \"...\";\r\n        }\r\n        var prev = copy[name];\r\n        if (!prev) copy[name] = val;\r\n        else if (prev != val) throw new Error(\"Inconsistent bindings for \" + name);\r\n      }\r\n      delete keymap[keyname];\r\n    }\r\n    for (var prop in copy) keymap[prop] = copy[prop];\r\n    return keymap;\r\n  };\r\n\r\n  var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {\r\n    map = getKeyMap(map);\r\n    var found = map.call ? map.call(key, context) : map[key];\r\n    if (found === false) return \"nothing\";\r\n    if (found === \"...\") return \"multi\";\r\n    if (found != null && handle(found)) return \"handled\";\r\n\r\n    if (map.fallthrough) {\r\n      if (Object.prototype.toString.call(map.fallthrough) != \"[object Array]\")\r\n        return lookupKey(key, map.fallthrough, handle, context);\r\n      for (var i = 0; i < map.fallthrough.length; i++) {\r\n        var result = lookupKey(key, map.fallthrough[i], handle, context);\r\n        if (result) return result;\r\n      }\r\n    }\r\n  };\r\n\r\n  // Modifier key presses don't count as 'real' key presses for the\r\n  // purpose of keymap fallthrough.\r\n  var isModifierKey = CodeMirror.isModifierKey = function(value) {\r\n    var name = typeof value == \"string\" ? value : keyNames[value.keyCode];\r\n    return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\";\r\n  };\r\n\r\n  // Look up the name of a key as indicated by an event object.\r\n  var keyName = CodeMirror.keyName = function(event, noShift) {\r\n    if (presto && event.keyCode == 34 && event[\"char\"]) return false;\r\n    var base = keyNames[event.keyCode], name = base;\r\n    if (name == null || event.altGraphKey) return false;\r\n    if (event.altKey && base != \"Alt\") name = \"Alt-\" + name;\r\n    if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != \"Ctrl\") name = \"Ctrl-\" + name;\r\n    if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != \"Cmd\") name = \"Cmd-\" + name;\r\n    if (!noShift && event.shiftKey && base != \"Shift\") name = \"Shift-\" + name;\r\n    return name;\r\n  };\r\n\r\n  function getKeyMap(val) {\r\n    return typeof val == \"string\" ? keyMap[val] : val;\r\n  }\r\n\r\n  // FROMTEXTAREA\r\n\r\n  CodeMirror.fromTextArea = function(textarea, options) {\r\n    options = options ? copyObj(options) : {};\r\n    options.value = textarea.value;\r\n    if (!options.tabindex && textarea.tabIndex)\r\n      options.tabindex = textarea.tabIndex;\r\n    if (!options.placeholder && textarea.placeholder)\r\n      options.placeholder = textarea.placeholder;\r\n    // Set autofocus to true if this textarea is focused, or if it has\r\n    // autofocus and no other element is focused.\r\n    if (options.autofocus == null) {\r\n      var hasFocus = activeElt();\r\n      options.autofocus = hasFocus == textarea ||\r\n        textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body;\r\n    }\r\n\r\n    function save() {textarea.value = cm.getValue();}\r\n    if (textarea.form) {\r\n      on(textarea.form, \"submit\", save);\r\n      // Deplorable hack to make the submit method do the right thing.\r\n      if (!options.leaveSubmitMethodAlone) {\r\n        var form = textarea.form, realSubmit = form.submit;\r\n        try {\r\n          var wrappedSubmit = form.submit = function() {\r\n            save();\r\n            form.submit = realSubmit;\r\n            form.submit();\r\n            form.submit = wrappedSubmit;\r\n          };\r\n        } catch(e) {}\r\n      }\r\n    }\r\n\r\n    options.finishInit = function(cm) {\r\n      cm.save = save;\r\n      cm.getTextArea = function() { return textarea; };\r\n      cm.toTextArea = function() {\r\n        cm.toTextArea = isNaN; // Prevent this from being ran twice\r\n        save();\r\n        textarea.parentNode.removeChild(cm.getWrapperElement());\r\n        textarea.style.display = \"\";\r\n        if (textarea.form) {\r\n          off(textarea.form, \"submit\", save);\r\n          if (typeof textarea.form.submit == \"function\")\r\n            textarea.form.submit = realSubmit;\r\n        }\r\n      };\r\n    };\r\n\r\n    textarea.style.display = \"none\";\r\n    var cm = CodeMirror(function(node) {\r\n      textarea.parentNode.insertBefore(node, textarea.nextSibling);\r\n    }, options);\r\n    return cm;\r\n  };\r\n\r\n  // STRING STREAM\r\n\r\n  // Fed to the mode parsers, provides helper functions to make\r\n  // parsers more succinct.\r\n\r\n  var StringStream = CodeMirror.StringStream = function(string, tabSize) {\r\n    this.pos = this.start = 0;\r\n    this.string = string;\r\n    this.tabSize = tabSize || 8;\r\n    this.lastColumnPos = this.lastColumnValue = 0;\r\n    this.lineStart = 0;\r\n  };\r\n\r\n  StringStream.prototype = {\r\n    eol: function() {return this.pos >= this.string.length;},\r\n    sol: function() {return this.pos == this.lineStart;},\r\n    peek: function() {return this.string.charAt(this.pos) || undefined;},\r\n    next: function() {\r\n      if (this.pos < this.string.length)\r\n        return this.string.charAt(this.pos++);\r\n    },\r\n    eat: function(match) {\r\n      var ch = this.string.charAt(this.pos);\r\n      if (typeof match == \"string\") var ok = ch == match;\r\n      else var ok = ch && (match.test ? match.test(ch) : match(ch));\r\n      if (ok) {++this.pos; return ch;}\r\n    },\r\n    eatWhile: function(match) {\r\n      var start = this.pos;\r\n      while (this.eat(match)){}\r\n      return this.pos > start;\r\n    },\r\n    eatSpace: function() {\r\n      var start = this.pos;\r\n      while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;\r\n      return this.pos > start;\r\n    },\r\n    skipToEnd: function() {this.pos = this.string.length;},\r\n    skipTo: function(ch) {\r\n      var found = this.string.indexOf(ch, this.pos);\r\n      if (found > -1) {this.pos = found; return true;}\r\n    },\r\n    backUp: function(n) {this.pos -= n;},\r\n    column: function() {\r\n      if (this.lastColumnPos < this.start) {\r\n        this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);\r\n        this.lastColumnPos = this.start;\r\n      }\r\n      return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);\r\n    },\r\n    indentation: function() {\r\n      return countColumn(this.string, null, this.tabSize) -\r\n        (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);\r\n    },\r\n    match: function(pattern, consume, caseInsensitive) {\r\n      if (typeof pattern == \"string\") {\r\n        var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};\r\n        var substr = this.string.substr(this.pos, pattern.length);\r\n        if (cased(substr) == cased(pattern)) {\r\n          if (consume !== false) this.pos += pattern.length;\r\n          return true;\r\n        }\r\n      } else {\r\n        var match = this.string.slice(this.pos).match(pattern);\r\n        if (match && match.index > 0) return null;\r\n        if (match && consume !== false) this.pos += match[0].length;\r\n        return match;\r\n      }\r\n    },\r\n    current: function(){return this.string.slice(this.start, this.pos);},\r\n    hideFirstChars: function(n, inner) {\r\n      this.lineStart += n;\r\n      try { return inner(); }\r\n      finally { this.lineStart -= n; }\r\n    }\r\n  };\r\n\r\n  // TEXTMARKERS\r\n\r\n  // Created with markText and setBookmark methods. A TextMarker is a\r\n  // handle that can be used to clear or find a marked position in the\r\n  // document. Line objects hold arrays (markedSpans) containing\r\n  // {from, to, marker} object pointing to such marker objects, and\r\n  // indicating that such a marker is present on that line. Multiple\r\n  // lines may point to the same marker when it spans across lines.\r\n  // The spans will have null for their from/to properties when the\r\n  // marker continues beyond the start/end of the line. Markers have\r\n  // links back to the lines they currently touch.\r\n\r\n  var nextMarkerId = 0;\r\n\r\n  var TextMarker = CodeMirror.TextMarker = function(doc, type) {\r\n    this.lines = [];\r\n    this.type = type;\r\n    this.doc = doc;\r\n    this.id = ++nextMarkerId;\r\n  };\r\n  eventMixin(TextMarker);\r\n\r\n  // Clear the marker.\r\n  TextMarker.prototype.clear = function() {\r\n    if (this.explicitlyCleared) return;\r\n    var cm = this.doc.cm, withOp = cm && !cm.curOp;\r\n    if (withOp) startOperation(cm);\r\n    if (hasHandler(this, \"clear\")) {\r\n      var found = this.find();\r\n      if (found) signalLater(this, \"clear\", found.from, found.to);\r\n    }\r\n    var min = null, max = null;\r\n    for (var i = 0; i < this.lines.length; ++i) {\r\n      var line = this.lines[i];\r\n      var span = getMarkedSpanFor(line.markedSpans, this);\r\n      if (cm && !this.collapsed) regLineChange(cm, lineNo(line), \"text\");\r\n      else if (cm) {\r\n        if (span.to != null) max = lineNo(line);\r\n        if (span.from != null) min = lineNo(line);\r\n      }\r\n      line.markedSpans = removeMarkedSpan(line.markedSpans, span);\r\n      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)\r\n        updateLineHeight(line, textHeight(cm.display));\r\n    }\r\n    if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {\r\n      var visual = visualLine(this.lines[i]), len = lineLength(visual);\r\n      if (len > cm.display.maxLineLength) {\r\n        cm.display.maxLine = visual;\r\n        cm.display.maxLineLength = len;\r\n        cm.display.maxLineChanged = true;\r\n      }\r\n    }\r\n\r\n    if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);\r\n    this.lines.length = 0;\r\n    this.explicitlyCleared = true;\r\n    if (this.atomic && this.doc.cantEdit) {\r\n      this.doc.cantEdit = false;\r\n      if (cm) reCheckSelection(cm.doc);\r\n    }\r\n    if (cm) signalLater(cm, \"markerCleared\", cm, this);\r\n    if (withOp) endOperation(cm);\r\n    if (this.parent) this.parent.clear();\r\n  };\r\n\r\n  // Find the position of the marker in the document. Returns a {from,\r\n  // to} object by default. Side can be passed to get a specific side\r\n  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the\r\n  // Pos objects returned contain a line object, rather than a line\r\n  // number (used to prevent looking up the same line twice).\r\n  TextMarker.prototype.find = function(side, lineObj) {\r\n    if (side == null && this.type == \"bookmark\") side = 1;\r\n    var from, to;\r\n    for (var i = 0; i < this.lines.length; ++i) {\r\n      var line = this.lines[i];\r\n      var span = getMarkedSpanFor(line.markedSpans, this);\r\n      if (span.from != null) {\r\n        from = Pos(lineObj ? line : lineNo(line), span.from);\r\n        if (side == -1) return from;\r\n      }\r\n      if (span.to != null) {\r\n        to = Pos(lineObj ? line : lineNo(line), span.to);\r\n        if (side == 1) return to;\r\n      }\r\n    }\r\n    return from && {from: from, to: to};\r\n  };\r\n\r\n  // Signals that the marker's widget changed, and surrounding layout\r\n  // should be recomputed.\r\n  TextMarker.prototype.changed = function() {\r\n    var pos = this.find(-1, true), widget = this, cm = this.doc.cm;\r\n    if (!pos || !cm) return;\r\n    runInOp(cm, function() {\r\n      var line = pos.line, lineN = lineNo(pos.line);\r\n      var view = findViewForLine(cm, lineN);\r\n      if (view) {\r\n        clearLineMeasurementCacheFor(view);\r\n        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;\r\n      }\r\n      cm.curOp.updateMaxLine = true;\r\n      if (!lineIsHidden(widget.doc, line) && widget.height != null) {\r\n        var oldHeight = widget.height;\r\n        widget.height = null;\r\n        var dHeight = widgetHeight(widget) - oldHeight;\r\n        if (dHeight)\r\n          updateLineHeight(line, line.height + dHeight);\r\n      }\r\n    });\r\n  };\r\n\r\n  TextMarker.prototype.attachLine = function(line) {\r\n    if (!this.lines.length && this.doc.cm) {\r\n      var op = this.doc.cm.curOp;\r\n      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)\r\n        (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);\r\n    }\r\n    this.lines.push(line);\r\n  };\r\n  TextMarker.prototype.detachLine = function(line) {\r\n    this.lines.splice(indexOf(this.lines, line), 1);\r\n    if (!this.lines.length && this.doc.cm) {\r\n      var op = this.doc.cm.curOp;\r\n      (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);\r\n    }\r\n  };\r\n\r\n  // Collapsed markers have unique ids, in order to be able to order\r\n  // them, which is needed for uniquely determining an outer marker\r\n  // when they overlap (they may nest, but not partially overlap).\r\n  var nextMarkerId = 0;\r\n\r\n  // Create a marker, wire it up to the right lines, and\r\n  function markText(doc, from, to, options, type) {\r\n    // Shared markers (across linked documents) are handled separately\r\n    // (markTextShared will call out to this again, once per\r\n    // document).\r\n    if (options && options.shared) return markTextShared(doc, from, to, options, type);\r\n    // Ensure we are in an operation.\r\n    if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);\r\n\r\n    var marker = new TextMarker(doc, type), diff = cmp(from, to);\r\n    if (options) copyObj(options, marker, false);\r\n    // Don't connect empty markers unless clearWhenEmpty is false\r\n    if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)\r\n      return marker;\r\n    if (marker.replacedWith) {\r\n      // Showing up as a widget implies collapsed (widget replaces text)\r\n      marker.collapsed = true;\r\n      marker.widgetNode = elt(\"span\", [marker.replacedWith], \"CodeMirror-widget\");\r\n      if (!options.handleMouseEvents) marker.widgetNode.setAttribute(\"cm-ignore-events\", \"true\");\r\n      if (options.insertLeft) marker.widgetNode.insertLeft = true;\r\n    }\r\n    if (marker.collapsed) {\r\n      if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||\r\n          from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))\r\n        throw new Error(\"Inserting collapsed marker partially overlapping an existing one\");\r\n      sawCollapsedSpans = true;\r\n    }\r\n\r\n    if (marker.addToHistory)\r\n      addChangeToHistory(doc, {from: from, to: to, origin: \"markText\"}, doc.sel, NaN);\r\n\r\n    var curLine = from.line, cm = doc.cm, updateMaxLine;\r\n    doc.iter(curLine, to.line + 1, function(line) {\r\n      if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)\r\n        updateMaxLine = true;\r\n      if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);\r\n      addMarkedSpan(line, new MarkedSpan(marker,\r\n                                         curLine == from.line ? from.ch : null,\r\n                                         curLine == to.line ? to.ch : null));\r\n      ++curLine;\r\n    });\r\n    // lineIsHidden depends on the presence of the spans, so needs a second pass\r\n    if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {\r\n      if (lineIsHidden(doc, line)) updateLineHeight(line, 0);\r\n    });\r\n\r\n    if (marker.clearOnEnter) on(marker, \"beforeCursorEnter\", function() { marker.clear(); });\r\n\r\n    if (marker.readOnly) {\r\n      sawReadOnlySpans = true;\r\n      if (doc.history.done.length || doc.history.undone.length)\r\n        doc.clearHistory();\r\n    }\r\n    if (marker.collapsed) {\r\n      marker.id = ++nextMarkerId;\r\n      marker.atomic = true;\r\n    }\r\n    if (cm) {\r\n      // Sync editor state\r\n      if (updateMaxLine) cm.curOp.updateMaxLine = true;\r\n      if (marker.collapsed)\r\n        regChange(cm, from.line, to.line + 1);\r\n      else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)\r\n        for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, \"text\");\r\n      if (marker.atomic) reCheckSelection(cm.doc);\r\n      signalLater(cm, \"markerAdded\", cm, marker);\r\n    }\r\n    return marker;\r\n  }\r\n\r\n  // SHARED TEXTMARKERS\r\n\r\n  // A shared marker spans multiple linked documents. It is\r\n  // implemented as a meta-marker-object controlling multiple normal\r\n  // markers.\r\n  var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {\r\n    this.markers = markers;\r\n    this.primary = primary;\r\n    for (var i = 0; i < markers.length; ++i)\r\n      markers[i].parent = this;\r\n  };\r\n  eventMixin(SharedTextMarker);\r\n\r\n  SharedTextMarker.prototype.clear = function() {\r\n    if (this.explicitlyCleared) return;\r\n    this.explicitlyCleared = true;\r\n    for (var i = 0; i < this.markers.length; ++i)\r\n      this.markers[i].clear();\r\n    signalLater(this, \"clear\");\r\n  };\r\n  SharedTextMarker.prototype.find = function(side, lineObj) {\r\n    return this.primary.find(side, lineObj);\r\n  };\r\n\r\n  function markTextShared(doc, from, to, options, type) {\r\n    options = copyObj(options);\r\n    options.shared = false;\r\n    var markers = [markText(doc, from, to, options, type)], primary = markers[0];\r\n    var widget = options.widgetNode;\r\n    linkedDocs(doc, function(doc) {\r\n      if (widget) options.widgetNode = widget.cloneNode(true);\r\n      markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));\r\n      for (var i = 0; i < doc.linked.length; ++i)\r\n        if (doc.linked[i].isParent) return;\r\n      primary = lst(markers);\r\n    });\r\n    return new SharedTextMarker(markers, primary);\r\n  }\r\n\r\n  function findSharedMarkers(doc) {\r\n    return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),\r\n                         function(m) { return m.parent; });\r\n  }\r\n\r\n  function copySharedMarkers(doc, markers) {\r\n    for (var i = 0; i < markers.length; i++) {\r\n      var marker = markers[i], pos = marker.find();\r\n      var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);\r\n      if (cmp(mFrom, mTo)) {\r\n        var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);\r\n        marker.markers.push(subMark);\r\n        subMark.parent = marker;\r\n      }\r\n    }\r\n  }\r\n\r\n  function detachSharedMarkers(markers) {\r\n    for (var i = 0; i < markers.length; i++) {\r\n      var marker = markers[i], linked = [marker.primary.doc];;\r\n      linkedDocs(marker.primary.doc, function(d) { linked.push(d); });\r\n      for (var j = 0; j < marker.markers.length; j++) {\r\n        var subMarker = marker.markers[j];\r\n        if (indexOf(linked, subMarker.doc) == -1) {\r\n          subMarker.parent = null;\r\n          marker.markers.splice(j--, 1);\r\n        }\r\n      }\r\n    }\r\n  }\r\n\r\n  // TEXTMARKER SPANS\r\n\r\n  function MarkedSpan(marker, from, to) {\r\n    this.marker = marker;\r\n    this.from = from; this.to = to;\r\n  }\r\n\r\n  // Search an array of spans for a span matching the given marker.\r\n  function getMarkedSpanFor(spans, marker) {\r\n    if (spans) for (var i = 0; i < spans.length; ++i) {\r\n      var span = spans[i];\r\n      if (span.marker == marker) return span;\r\n    }\r\n  }\r\n  // Remove a span from an array, returning undefined if no spans are\r\n  // left (we don't store arrays for lines without spans).\r\n  function removeMarkedSpan(spans, span) {\r\n    for (var r, i = 0; i < spans.length; ++i)\r\n      if (spans[i] != span) (r || (r = [])).push(spans[i]);\r\n    return r;\r\n  }\r\n  // Add a span to a line.\r\n  function addMarkedSpan(line, span) {\r\n    line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];\r\n    span.marker.attachLine(line);\r\n  }\r\n\r\n  // Used for the algorithm that adjusts markers for a change in the\r\n  // document. These functions cut an array of spans at a given\r\n  // character position, returning an array of remaining chunks (or\r\n  // undefined if nothing remains).\r\n  function markedSpansBefore(old, startCh, isInsert) {\r\n    if (old) for (var i = 0, nw; i < old.length; ++i) {\r\n      var span = old[i], marker = span.marker;\r\n      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);\r\n      if (startsBefore || span.from == startCh && marker.type == \"bookmark\" && (!isInsert || !span.marker.insertLeft)) {\r\n        var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);\r\n        (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));\r\n      }\r\n    }\r\n    return nw;\r\n  }\r\n  function markedSpansAfter(old, endCh, isInsert) {\r\n    if (old) for (var i = 0, nw; i < old.length; ++i) {\r\n      var span = old[i], marker = span.marker;\r\n      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);\r\n      if (endsAfter || span.from == endCh && marker.type == \"bookmark\" && (!isInsert || span.marker.insertLeft)) {\r\n        var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);\r\n        (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,\r\n                                              span.to == null ? null : span.to - endCh));\r\n      }\r\n    }\r\n    return nw;\r\n  }\r\n\r\n  // Given a change object, compute the new set of marker spans that\r\n  // cover the line in which the change took place. Removes spans\r\n  // entirely within the change, reconnects spans belonging to the\r\n  // same marker that appear on both sides of the change, and cuts off\r\n  // spans partially within the change. Returns an array of span\r\n  // arrays with one element for each line in (after) the change.\r\n  function stretchSpansOverChange(doc, change) {\r\n    if (change.full) return null;\r\n    var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;\r\n    var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;\r\n    if (!oldFirst && !oldLast) return null;\r\n\r\n    var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;\r\n    // Get the spans that 'stick out' on both sides\r\n    var first = markedSpansBefore(oldFirst, startCh, isInsert);\r\n    var last = markedSpansAfter(oldLast, endCh, isInsert);\r\n\r\n    // Next, merge those two ends\r\n    var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);\r\n    if (first) {\r\n      // Fix up .to properties of first\r\n      for (var i = 0; i < first.length; ++i) {\r\n        var span = first[i];\r\n        if (span.to == null) {\r\n          var found = getMarkedSpanFor(last, span.marker);\r\n          if (!found) span.to = startCh;\r\n          else if (sameLine) span.to = found.to == null ? null : found.to + offset;\r\n        }\r\n      }\r\n    }\r\n    if (last) {\r\n      // Fix up .from in last (or move them into first in case of sameLine)\r\n      for (var i = 0; i < last.length; ++i) {\r\n        var span = last[i];\r\n        if (span.to != null) span.to += offset;\r\n        if (span.from == null) {\r\n          var found = getMarkedSpanFor(first, span.marker);\r\n          if (!found) {\r\n            span.from = offset;\r\n            if (sameLine) (first || (first = [])).push(span);\r\n          }\r\n        } else {\r\n          span.from += offset;\r\n          if (sameLine) (first || (first = [])).push(span);\r\n        }\r\n      }\r\n    }\r\n    // Make sure we didn't create any zero-length spans\r\n    if (first) first = clearEmptySpans(first);\r\n    if (last && last != first) last = clearEmptySpans(last);\r\n\r\n    var newMarkers = [first];\r\n    if (!sameLine) {\r\n      // Fill gap with whole-line-spans\r\n      var gap = change.text.length - 2, gapMarkers;\r\n      if (gap > 0 && first)\r\n        for (var i = 0; i < first.length; ++i)\r\n          if (first[i].to == null)\r\n            (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));\r\n      for (var i = 0; i < gap; ++i)\r\n        newMarkers.push(gapMarkers);\r\n      newMarkers.push(last);\r\n    }\r\n    return newMarkers;\r\n  }\r\n\r\n  // Remove spans that are empty and don't have a clearWhenEmpty\r\n  // option of false.\r\n  function clearEmptySpans(spans) {\r\n    for (var i = 0; i < spans.length; ++i) {\r\n      var span = spans[i];\r\n      if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)\r\n        spans.splice(i--, 1);\r\n    }\r\n    if (!spans.length) return null;\r\n    return spans;\r\n  }\r\n\r\n  // Used for un/re-doing changes from the history. Combines the\r\n  // result of computing the existing spans with the set of spans that\r\n  // existed in the history (so that deleting around a span and then\r\n  // undoing brings back the span).\r\n  function mergeOldSpans(doc, change) {\r\n    var old = getOldSpans(doc, change);\r\n    var stretched = stretchSpansOverChange(doc, change);\r\n    if (!old) return stretched;\r\n    if (!stretched) return old;\r\n\r\n    for (var i = 0; i < old.length; ++i) {\r\n      var oldCur = old[i], stretchCur = stretched[i];\r\n      if (oldCur && stretchCur) {\r\n        spans: for (var j = 0; j < stretchCur.length; ++j) {\r\n          var span = stretchCur[j];\r\n          for (var k = 0; k < oldCur.length; ++k)\r\n            if (oldCur[k].marker == span.marker) continue spans;\r\n          oldCur.push(span);\r\n        }\r\n      } else if (stretchCur) {\r\n        old[i] = stretchCur;\r\n      }\r\n    }\r\n    return old;\r\n  }\r\n\r\n  // Used to 'clip' out readOnly ranges when making a change.\r\n  function removeReadOnlyRanges(doc, from, to) {\r\n    var markers = null;\r\n    doc.iter(from.line, to.line + 1, function(line) {\r\n      if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {\r\n        var mark = line.markedSpans[i].marker;\r\n        if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))\r\n          (markers || (markers = [])).push(mark);\r\n      }\r\n    });\r\n    if (!markers) return null;\r\n    var parts = [{from: from, to: to}];\r\n    for (var i = 0; i < markers.length; ++i) {\r\n      var mk = markers[i], m = mk.find(0);\r\n      for (var j = 0; j < parts.length; ++j) {\r\n        var p = parts[j];\r\n        if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;\r\n        var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);\r\n        if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)\r\n          newParts.push({from: p.from, to: m.from});\r\n        if (dto > 0 || !mk.inclusiveRight && !dto)\r\n          newParts.push({from: m.to, to: p.to});\r\n        parts.splice.apply(parts, newParts);\r\n        j += newParts.length - 1;\r\n      }\r\n    }\r\n    return parts;\r\n  }\r\n\r\n  // Connect or disconnect spans from a line.\r\n  function detachMarkedSpans(line) {\r\n    var spans = line.markedSpans;\r\n    if (!spans) return;\r\n    for (var i = 0; i < spans.length; ++i)\r\n      spans[i].marker.detachLine(line);\r\n    line.markedSpans = null;\r\n  }\r\n  function attachMarkedSpans(line, spans) {\r\n    if (!spans) return;\r\n    for (var i = 0; i < spans.length; ++i)\r\n      spans[i].marker.attachLine(line);\r\n    line.markedSpans = spans;\r\n  }\r\n\r\n  // Helpers used when computing which overlapping collapsed span\r\n  // counts as the larger one.\r\n  function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }\r\n  function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }\r\n\r\n  // Returns a number indicating which of two overlapping collapsed\r\n  // spans is larger (and thus includes the other). Falls back to\r\n  // comparing ids when the spans cover exactly the same range.\r\n  function compareCollapsedMarkers(a, b) {\r\n    var lenDiff = a.lines.length - b.lines.length;\r\n    if (lenDiff != 0) return lenDiff;\r\n    var aPos = a.find(), bPos = b.find();\r\n    var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);\r\n    if (fromCmp) return -fromCmp;\r\n    var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);\r\n    if (toCmp) return toCmp;\r\n    return b.id - a.id;\r\n  }\r\n\r\n  // Find out whether a line ends or starts in a collapsed span. If\r\n  // so, return the marker for that span.\r\n  function collapsedSpanAtSide(line, start) {\r\n    var sps = sawCollapsedSpans && line.markedSpans, found;\r\n    if (sps) for (var sp, i = 0; i < sps.length; ++i) {\r\n      sp = sps[i];\r\n      if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&\r\n          (!found || compareCollapsedMarkers(found, sp.marker) < 0))\r\n        found = sp.marker;\r\n    }\r\n    return found;\r\n  }\r\n  function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }\r\n  function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }\r\n\r\n  // Test whether there exists a collapsed span that partially\r\n  // overlaps (covers the start or end, but not both) of a new span.\r\n  // Such overlap is not allowed.\r\n  function conflictingCollapsedRange(doc, lineNo, from, to, marker) {\r\n    var line = getLine(doc, lineNo);\r\n    var sps = sawCollapsedSpans && line.markedSpans;\r\n    if (sps) for (var i = 0; i < sps.length; ++i) {\r\n      var sp = sps[i];\r\n      if (!sp.marker.collapsed) continue;\r\n      var found = sp.marker.find(0);\r\n      var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);\r\n      var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);\r\n      if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;\r\n      if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||\r\n          fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))\r\n        return true;\r\n    }\r\n  }\r\n\r\n  // A visual line is a line as drawn on the screen. Folding, for\r\n  // example, can cause multiple logical lines to appear on the same\r\n  // visual line. This finds the start of the visual line that the\r\n  // given line is part of (usually that is the line itself).\r\n  function visualLine(line) {\r\n    var merged;\r\n    while (merged = collapsedSpanAtStart(line))\r\n      line = merged.find(-1, true).line;\r\n    return line;\r\n  }\r\n\r\n  // Returns an array of logical lines that continue the visual line\r\n  // started by the argument, or undefined if there are no such lines.\r\n  function visualLineContinued(line) {\r\n    var merged, lines;\r\n    while (merged = collapsedSpanAtEnd(line)) {\r\n      line = merged.find(1, true).line;\r\n      (lines || (lines = [])).push(line);\r\n    }\r\n    return lines;\r\n  }\r\n\r\n  // Get the line number of the start of the visual line that the\r\n  // given line number is part of.\r\n  function visualLineNo(doc, lineN) {\r\n    var line = getLine(doc, lineN), vis = visualLine(line);\r\n    if (line == vis) return lineN;\r\n    return lineNo(vis);\r\n  }\r\n  // Get the line number of the start of the next visual line after\r\n  // the given line.\r\n  function visualLineEndNo(doc, lineN) {\r\n    if (lineN > doc.lastLine()) return lineN;\r\n    var line = getLine(doc, lineN), merged;\r\n    if (!lineIsHidden(doc, line)) return lineN;\r\n    while (merged = collapsedSpanAtEnd(line))\r\n      line = merged.find(1, true).line;\r\n    return lineNo(line) + 1;\r\n  }\r\n\r\n  // Compute whether a line is hidden. Lines count as hidden when they\r\n  // are part of a visual line that starts with another line, or when\r\n  // they are entirely covered by collapsed, non-widget span.\r\n  function lineIsHidden(doc, line) {\r\n    var sps = sawCollapsedSpans && line.markedSpans;\r\n    if (sps) for (var sp, i = 0; i < sps.length; ++i) {\r\n      sp = sps[i];\r\n      if (!sp.marker.collapsed) continue;\r\n      if (sp.from == null) return true;\r\n      if (sp.marker.widgetNode) continue;\r\n      if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))\r\n        return true;\r\n    }\r\n  }\r\n  function lineIsHiddenInner(doc, line, span) {\r\n    if (span.to == null) {\r\n      var end = span.marker.find(1, true);\r\n      return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));\r\n    }\r\n    if (span.marker.inclusiveRight && span.to == line.text.length)\r\n      return true;\r\n    for (var sp, i = 0; i < line.markedSpans.length; ++i) {\r\n      sp = line.markedSpans[i];\r\n      if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&\r\n          (sp.to == null || sp.to != span.from) &&\r\n          (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&\r\n          lineIsHiddenInner(doc, line, sp)) return true;\r\n    }\r\n  }\r\n\r\n  // LINE WIDGETS\r\n\r\n  // Line widgets are block elements displayed above or below a line.\r\n\r\n  var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {\r\n    if (options) for (var opt in options) if (options.hasOwnProperty(opt))\r\n      this[opt] = options[opt];\r\n    this.doc = doc;\r\n    this.node = node;\r\n  };\r\n  eventMixin(LineWidget);\r\n\r\n  function adjustScrollWhenAboveVisible(cm, line, diff) {\r\n    if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))\r\n      addToScrollPos(cm, null, diff);\r\n  }\r\n\r\n  LineWidget.prototype.clear = function() {\r\n    var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);\r\n    if (no == null || !ws) return;\r\n    for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);\r\n    if (!ws.length) line.widgets = null;\r\n    var height = widgetHeight(this);\r\n    updateLineHeight(line, Math.max(0, line.height - height));\r\n    if (cm) runInOp(cm, function() {\r\n      adjustScrollWhenAboveVisible(cm, line, -height);\r\n      regLineChange(cm, no, \"widget\");\r\n    });\r\n  };\r\n  LineWidget.prototype.changed = function() {\r\n    var oldH = this.height, cm = this.doc.cm, line = this.line;\r\n    this.height = null;\r\n    var diff = widgetHeight(this) - oldH;\r\n    if (!diff) return;\r\n    updateLineHeight(line, line.height + diff);\r\n    if (cm) runInOp(cm, function() {\r\n      cm.curOp.forceUpdate = true;\r\n      adjustScrollWhenAboveVisible(cm, line, diff);\r\n    });\r\n  };\r\n\r\n  function widgetHeight(widget) {\r\n    if (widget.height != null) return widget.height;\r\n    var cm = widget.doc.cm;\r\n    if (!cm) return 0;\r\n    if (!contains(document.body, widget.node)) {\r\n      var parentStyle = \"position: relative;\";\r\n      if (widget.coverGutter)\r\n        parentStyle += \"margin-left: -\" + cm.display.gutters.offsetWidth + \"px;\";\r\n      if (widget.noHScroll)\r\n        parentStyle += \"width: \" + cm.display.wrapper.clientWidth + \"px;\";\r\n      removeChildrenAndAdd(cm.display.measure, elt(\"div\", [widget.node], null, parentStyle));\r\n    }\r\n    return widget.height = widget.node.offsetHeight;\r\n  }\r\n\r\n  function addLineWidget(doc, handle, node, options) {\r\n    var widget = new LineWidget(doc, node, options);\r\n    var cm = doc.cm;\r\n    if (cm && widget.noHScroll) cm.display.alignWidgets = true;\r\n    changeLine(doc, handle, \"widget\", function(line) {\r\n      var widgets = line.widgets || (line.widgets = []);\r\n      if (widget.insertAt == null) widgets.push(widget);\r\n      else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);\r\n      widget.line = line;\r\n      if (cm && !lineIsHidden(doc, line)) {\r\n        var aboveVisible = heightAtLine(line) < doc.scrollTop;\r\n        updateLineHeight(line, line.height + widgetHeight(widget));\r\n        if (aboveVisible) addToScrollPos(cm, null, widget.height);\r\n        cm.curOp.forceUpdate = true;\r\n      }\r\n      return true;\r\n    });\r\n    return widget;\r\n  }\r\n\r\n  // LINE DATA STRUCTURE\r\n\r\n  // Line objects. These hold state related to a line, including\r\n  // highlighting info (the styles array).\r\n  var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {\r\n    this.text = text;\r\n    attachMarkedSpans(this, markedSpans);\r\n    this.height = estimateHeight ? estimateHeight(this) : 1;\r\n  };\r\n  eventMixin(Line);\r\n  Line.prototype.lineNo = function() { return lineNo(this); };\r\n\r\n  // Change the content (text, markers) of a line. Automatically\r\n  // invalidates cached information and tries to re-estimate the\r\n  // line's height.\r\n  function updateLine(line, text, markedSpans, estimateHeight) {\r\n    line.text = text;\r\n    if (line.stateAfter) line.stateAfter = null;\r\n    if (line.styles) line.styles = null;\r\n    if (line.order != null) line.order = null;\r\n    detachMarkedSpans(line);\r\n    attachMarkedSpans(line, markedSpans);\r\n    var estHeight = estimateHeight ? estimateHeight(line) : 1;\r\n    if (estHeight != line.height) updateLineHeight(line, estHeight);\r\n  }\r\n\r\n  // Detach a line from the document tree and its markers.\r\n  function cleanUpLine(line) {\r\n    line.parent = null;\r\n    detachMarkedSpans(line);\r\n  }\r\n\r\n  function extractLineClasses(type, output) {\r\n    if (type) for (;;) {\r\n      var lineClass = type.match(/(?:^|\\s+)line-(background-)?(\\S+)/);\r\n      if (!lineClass) break;\r\n      type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);\r\n      var prop = lineClass[1] ? \"bgClass\" : \"textClass\";\r\n      if (output[prop] == null)\r\n        output[prop] = lineClass[2];\r\n      else if (!(new RegExp(\"(?:^|\\s)\" + lineClass[2] + \"(?:$|\\s)\")).test(output[prop]))\r\n        output[prop] += \" \" + lineClass[2];\r\n    }\r\n    return type;\r\n  }\r\n\r\n  function callBlankLine(mode, state) {\r\n    if (mode.blankLine) return mode.blankLine(state);\r\n    if (!mode.innerMode) return;\r\n    var inner = CodeMirror.innerMode(mode, state);\r\n    if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);\r\n  }\r\n\r\n  function readToken(mode, stream, state, inner) {\r\n    for (var i = 0; i < 10; i++) {\r\n      if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;\r\n      var style = mode.token(stream, state);\r\n      if (stream.pos > stream.start) return style;\r\n    }\r\n    throw new Error(\"Mode \" + mode.name + \" failed to advance stream.\");\r\n  }\r\n\r\n  // Utility for getTokenAt and getLineTokens\r\n  function takeToken(cm, pos, precise, asArray) {\r\n    function getObj(copy) {\r\n      return {start: stream.start, end: stream.pos,\r\n              string: stream.current(),\r\n              type: style || null,\r\n              state: copy ? copyState(doc.mode, state) : state};\r\n    }\r\n\r\n    var doc = cm.doc, mode = doc.mode, style;\r\n    pos = clipPos(doc, pos);\r\n    var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);\r\n    var stream = new StringStream(line.text, cm.options.tabSize), tokens;\r\n    if (asArray) tokens = [];\r\n    while ((asArray || stream.pos < pos.ch) && !stream.eol()) {\r\n      stream.start = stream.pos;\r\n      style = readToken(mode, stream, state);\r\n      if (asArray) tokens.push(getObj(true));\r\n    }\r\n    return asArray ? tokens : getObj();\r\n  }\r\n\r\n  // Run the given mode's parser over a line, calling f for each token.\r\n  function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {\r\n    var flattenSpans = mode.flattenSpans;\r\n    if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;\r\n    var curStart = 0, curStyle = null;\r\n    var stream = new StringStream(text, cm.options.tabSize), style;\r\n    var inner = cm.options.addModeClass && [null];\r\n    if (text == \"\") extractLineClasses(callBlankLine(mode, state), lineClasses);\r\n    while (!stream.eol()) {\r\n      if (stream.pos > cm.options.maxHighlightLength) {\r\n        flattenSpans = false;\r\n        if (forceToEnd) processLine(cm, text, state, stream.pos);\r\n        stream.pos = text.length;\r\n        style = null;\r\n      } else {\r\n        style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);\r\n      }\r\n      if (inner) {\r\n        var mName = inner[0].name;\r\n        if (mName) style = \"m-\" + (style ? mName + \" \" + style : mName);\r\n      }\r\n      if (!flattenSpans || curStyle != style) {\r\n        while (curStart < stream.start) {\r\n          curStart = Math.min(stream.start, curStart + 50000);\r\n          f(curStart, curStyle);\r\n        }\r\n        curStyle = style;\r\n      }\r\n      stream.start = stream.pos;\r\n    }\r\n    while (curStart < stream.pos) {\r\n      // Webkit seems to refuse to render text nodes longer than 57444 characters\r\n      var pos = Math.min(stream.pos, curStart + 50000);\r\n      f(pos, curStyle);\r\n      curStart = pos;\r\n    }\r\n  }\r\n\r\n  // Compute a style array (an array starting with a mode generation\r\n  // -- for invalidation -- followed by pairs of end positions and\r\n  // style strings), which is used to highlight the tokens on the\r\n  // line.\r\n  function highlightLine(cm, line, state, forceToEnd) {\r\n    // A styles array always starts with a number identifying the\r\n    // mode/overlays that it is based on (for easy invalidation).\r\n    var st = [cm.state.modeGen], lineClasses = {};\r\n    // Compute the base array of styles\r\n    runMode(cm, line.text, cm.doc.mode, state, function(end, style) {\r\n      st.push(end, style);\r\n    }, lineClasses, forceToEnd);\r\n\r\n    // Run overlays, adjust style array.\r\n    for (var o = 0; o < cm.state.overlays.length; ++o) {\r\n      var overlay = cm.state.overlays[o], i = 1, at = 0;\r\n      runMode(cm, line.text, overlay.mode, true, function(end, style) {\r\n        var start = i;\r\n        // Ensure there's a token end at the current position, and that i points at it\r\n        while (at < end) {\r\n          var i_end = st[i];\r\n          if (i_end > end)\r\n            st.splice(i, 1, end, st[i+1], i_end);\r\n          i += 2;\r\n          at = Math.min(end, i_end);\r\n        }\r\n        if (!style) return;\r\n        if (overlay.opaque) {\r\n          st.splice(start, i - start, end, \"cm-overlay \" + style);\r\n          i = start + 2;\r\n        } else {\r\n          for (; start < i; start += 2) {\r\n            var cur = st[start+1];\r\n            st[start+1] = (cur ? cur + \" \" : \"\") + \"cm-overlay \" + style;\r\n          }\r\n        }\r\n      }, lineClasses);\r\n    }\r\n\r\n    return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};\r\n  }\r\n\r\n  function getLineStyles(cm, line, updateFrontier) {\r\n    if (!line.styles || line.styles[0] != cm.state.modeGen) {\r\n      var state = getStateBefore(cm, lineNo(line));\r\n      var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);\r\n      line.stateAfter = state;\r\n      line.styles = result.styles;\r\n      if (result.classes) line.styleClasses = result.classes;\r\n      else if (line.styleClasses) line.styleClasses = null;\r\n      if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;\r\n    }\r\n    return line.styles;\r\n  }\r\n\r\n  // Lightweight form of highlight -- proceed over this line and\r\n  // update state, but don't save a style array. Used for lines that\r\n  // aren't currently visible.\r\n  function processLine(cm, text, state, startAt) {\r\n    var mode = cm.doc.mode;\r\n    var stream = new StringStream(text, cm.options.tabSize);\r\n    stream.start = stream.pos = startAt || 0;\r\n    if (text == \"\") callBlankLine(mode, state);\r\n    while (!stream.eol()) {\r\n      readToken(mode, stream, state);\r\n      stream.start = stream.pos;\r\n    }\r\n  }\r\n\r\n  // Convert a style as returned by a mode (either null, or a string\r\n  // containing one or more styles) to a CSS style. This is cached,\r\n  // and also looks for line-wide styles.\r\n  var styleToClassCache = {}, styleToClassCacheWithMode = {};\r\n  function interpretTokenStyle(style, options) {\r\n    if (!style || /^\\s*$/.test(style)) return null;\r\n    var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;\r\n    return cache[style] ||\r\n      (cache[style] = style.replace(/\\S+/g, \"cm-$&\"));\r\n  }\r\n\r\n  // Render the DOM representation of the text of a line. Also builds\r\n  // up a 'line map', which points at the DOM nodes that represent\r\n  // specific stretches of text, and is used by the measuring code.\r\n  // The returned object contains the DOM node, this map, and\r\n  // information about line-wide styles that were set by the mode.\r\n  function buildLineContent(cm, lineView) {\r\n    // The padding-right forces the element to have a 'border', which\r\n    // is needed on Webkit to be able to get line-level bounding\r\n    // rectangles for it (in measureChar).\r\n    var content = elt(\"span\", null, null, webkit ? \"padding-right: .1px\" : null);\r\n    var builder = {pre: elt(\"pre\", [content], \"CodeMirror-line\"), content: content,\r\n                   col: 0, pos: 0, cm: cm,\r\n                   splitSpaces: (ie || webkit) && cm.getOption(\"lineWrapping\")};\r\n    lineView.measure = {};\r\n\r\n    // Iterate over the logical lines that make up this visual line.\r\n    for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {\r\n      var line = i ? lineView.rest[i - 1] : lineView.line, order;\r\n      builder.pos = 0;\r\n      builder.addToken = buildToken;\r\n      // Optionally wire in some hacks into the token-rendering\r\n      // algorithm, to deal with browser quirks.\r\n      if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))\r\n        builder.addToken = buildTokenBadBidi(builder.addToken, order);\r\n      builder.map = [];\r\n      var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);\r\n      insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));\r\n      if (line.styleClasses) {\r\n        if (line.styleClasses.bgClass)\r\n          builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || \"\");\r\n        if (line.styleClasses.textClass)\r\n          builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || \"\");\r\n      }\r\n\r\n      // Ensure at least a single node is present, for measuring.\r\n      if (builder.map.length == 0)\r\n        builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));\r\n\r\n      // Store the map and a cache object for the current logical line\r\n      if (i == 0) {\r\n        lineView.measure.map = builder.map;\r\n        lineView.measure.cache = {};\r\n      } else {\r\n        (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);\r\n        (lineView.measure.caches || (lineView.measure.caches = [])).push({});\r\n      }\r\n    }\r\n\r\n    // See issue #2901\r\n    if (webkit && /\\bcm-tab\\b/.test(builder.content.lastChild.className))\r\n      builder.content.className = \"cm-tab-wrap-hack\";\r\n\r\n    signal(cm, \"renderLine\", cm, lineView.line, builder.pre);\r\n    if (builder.pre.className)\r\n      builder.textClass = joinClasses(builder.pre.className, builder.textClass || \"\");\r\n\r\n    return builder;\r\n  }\r\n\r\n  function defaultSpecialCharPlaceholder(ch) {\r\n    var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\");\r\n    token.title = \"\\\\u\" + ch.charCodeAt(0).toString(16);\r\n    token.setAttribute(\"aria-label\", token.title);\r\n    return token;\r\n  }\r\n\r\n  // Build up the DOM representation for a single token, and add it to\r\n  // the line map. Takes care to render special characters separately.\r\n  function buildToken(builder, text, style, startStyle, endStyle, title, css) {\r\n    if (!text) return;\r\n    var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;\r\n    var special = builder.cm.state.specialChars, mustWrap = false;\r\n    if (!special.test(text)) {\r\n      builder.col += text.length;\r\n      var content = document.createTextNode(displayText);\r\n      builder.map.push(builder.pos, builder.pos + text.length, content);\r\n      if (ie && ie_version < 9) mustWrap = true;\r\n      builder.pos += text.length;\r\n    } else {\r\n      var content = document.createDocumentFragment(), pos = 0;\r\n      while (true) {\r\n        special.lastIndex = pos;\r\n        var m = special.exec(text);\r\n        var skipped = m ? m.index - pos : text.length - pos;\r\n        if (skipped) {\r\n          var txt = document.createTextNode(displayText.slice(pos, pos + skipped));\r\n          if (ie && ie_version < 9) content.appendChild(elt(\"span\", [txt]));\r\n          else content.appendChild(txt);\r\n          builder.map.push(builder.pos, builder.pos + skipped, txt);\r\n          builder.col += skipped;\r\n          builder.pos += skipped;\r\n        }\r\n        if (!m) break;\r\n        pos += skipped + 1;\r\n        if (m[0] == \"\\t\") {\r\n          var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;\r\n          var txt = content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"));\r\n          txt.setAttribute(\"role\", \"presentation\");\r\n          txt.setAttribute(\"cm-text\", \"\\t\");\r\n          builder.col += tabWidth;\r\n        } else if (m[0] == \"\\r\" || m[0] == \"\\n\") {\r\n          var txt = content.appendChild(elt(\"span\", m[0] == \"\\r\" ? \"\\u240d\" : \"\\u2424\", \"cm-invalidchar\"));\r\n          txt.setAttribute(\"cm-text\", m[0]);\r\n          builder.col += 1;\r\n        } else {\r\n          var txt = builder.cm.options.specialCharPlaceholder(m[0]);\r\n          txt.setAttribute(\"cm-text\", m[0]);\r\n          if (ie && ie_version < 9) content.appendChild(elt(\"span\", [txt]));\r\n          else content.appendChild(txt);\r\n          builder.col += 1;\r\n        }\r\n        builder.map.push(builder.pos, builder.pos + 1, txt);\r\n        builder.pos++;\r\n      }\r\n    }\r\n    if (style || startStyle || endStyle || mustWrap || css) {\r\n      var fullStyle = style || \"\";\r\n      if (startStyle) fullStyle += startStyle;\r\n      if (endStyle) fullStyle += endStyle;\r\n      var token = elt(\"span\", [content], fullStyle, css);\r\n      if (title) token.title = title;\r\n      return builder.content.appendChild(token);\r\n    }\r\n    builder.content.appendChild(content);\r\n  }\r\n\r\n  function splitSpaces(old) {\r\n    var out = \" \";\r\n    for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? \" \" : \"\\u00a0\";\r\n    out += \" \";\r\n    return out;\r\n  }\r\n\r\n  // Work around nonsense dimensions being reported for stretches of\r\n  // right-to-left text.\r\n  function buildTokenBadBidi(inner, order) {\r\n    return function(builder, text, style, startStyle, endStyle, title, css) {\r\n      style = style ? style + \" cm-force-border\" : \"cm-force-border\";\r\n      var start = builder.pos, end = start + text.length;\r\n      for (;;) {\r\n        // Find the part that overlaps with the start of this text\r\n        for (var i = 0; i < order.length; i++) {\r\n          var part = order[i];\r\n          if (part.to > start && part.from <= start) break;\r\n        }\r\n        if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);\r\n        inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);\r\n        startStyle = null;\r\n        text = text.slice(part.to - start);\r\n        start = part.to;\r\n      }\r\n    };\r\n  }\r\n\r\n  function buildCollapsedSpan(builder, size, marker, ignoreWidget) {\r\n    var widget = !ignoreWidget && marker.widgetNode;\r\n    if (widget) builder.map.push(builder.pos, builder.pos + size, widget);\r\n    if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {\r\n      if (!widget)\r\n        widget = builder.content.appendChild(document.createElement(\"span\"));\r\n      widget.setAttribute(\"cm-marker\", marker.id);\r\n    }\r\n    if (widget) {\r\n      builder.cm.display.input.setUneditable(widget);\r\n      builder.content.appendChild(widget);\r\n    }\r\n    builder.pos += size;\r\n  }\r\n\r\n  // Outputs a number of spans to make up a line, taking highlighting\r\n  // and marked text into account.\r\n  function insertLineContent(line, builder, styles) {\r\n    var spans = line.markedSpans, allText = line.text, at = 0;\r\n    if (!spans) {\r\n      for (var i = 1; i < styles.length; i+=2)\r\n        builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));\r\n      return;\r\n    }\r\n\r\n    var len = allText.length, pos = 0, i = 1, text = \"\", style, css;\r\n    var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;\r\n    for (;;) {\r\n      if (nextChange == pos) { // Update current marker set\r\n        spanStyle = spanEndStyle = spanStartStyle = title = css = \"\";\r\n        collapsed = null; nextChange = Infinity;\r\n        var foundBookmarks = [];\r\n        for (var j = 0; j < spans.length; ++j) {\r\n          var sp = spans[j], m = sp.marker;\r\n          if (m.type == \"bookmark\" && sp.from == pos && m.widgetNode) {\r\n            foundBookmarks.push(m);\r\n          } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {\r\n            if (sp.to != null && sp.to != pos && nextChange > sp.to) {\r\n              nextChange = sp.to;\r\n              spanEndStyle = \"\";\r\n            }\r\n            if (m.className) spanStyle += \" \" + m.className;\r\n            if (m.css) css = m.css;\r\n            if (m.startStyle && sp.from == pos) spanStartStyle += \" \" + m.startStyle;\r\n            if (m.endStyle && sp.to == nextChange) spanEndStyle += \" \" + m.endStyle;\r\n            if (m.title && !title) title = m.title;\r\n            if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))\r\n              collapsed = sp;\r\n          } else if (sp.from > pos && nextChange > sp.from) {\r\n            nextChange = sp.from;\r\n          }\r\n        }\r\n        if (collapsed && (collapsed.from || 0) == pos) {\r\n          buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,\r\n                             collapsed.marker, collapsed.from == null);\r\n          if (collapsed.to == null) return;\r\n          if (collapsed.to == pos) collapsed = false;\r\n        }\r\n        if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)\r\n          buildCollapsedSpan(builder, 0, foundBookmarks[j]);\r\n      }\r\n      if (pos >= len) break;\r\n\r\n      var upto = Math.min(len, nextChange);\r\n      while (true) {\r\n        if (text) {\r\n          var end = pos + text.length;\r\n          if (!collapsed) {\r\n            var tokenText = end > upto ? text.slice(0, upto - pos) : text;\r\n            builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,\r\n                             spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : \"\", title, css);\r\n          }\r\n          if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}\r\n          pos = end;\r\n          spanStartStyle = \"\";\r\n        }\r\n        text = allText.slice(at, at = styles[i++]);\r\n        style = interpretTokenStyle(styles[i++], builder.cm.options);\r\n      }\r\n    }\r\n  }\r\n\r\n  // DOCUMENT DATA STRUCTURE\r\n\r\n  // By default, updates that start and end at the beginning of a line\r\n  // are treated specially, in order to make the association of line\r\n  // widgets and marker elements with the text behave more intuitive.\r\n  function isWholeLineUpdate(doc, change) {\r\n    return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == \"\" &&\r\n      (!doc.cm || doc.cm.options.wholeLineUpdateBefore);\r\n  }\r\n\r\n  // Perform a change on the document data structure.\r\n  function updateDoc(doc, change, markedSpans, estimateHeight) {\r\n    function spansFor(n) {return markedSpans ? markedSpans[n] : null;}\r\n    function update(line, text, spans) {\r\n      updateLine(line, text, spans, estimateHeight);\r\n      signalLater(line, \"change\", line, change);\r\n    }\r\n    function linesFor(start, end) {\r\n      for (var i = start, result = []; i < end; ++i)\r\n        result.push(new Line(text[i], spansFor(i), estimateHeight));\r\n      return result;\r\n    }\r\n\r\n    var from = change.from, to = change.to, text = change.text;\r\n    var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);\r\n    var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;\r\n\r\n    // Adjust the line structure\r\n    if (change.full) {\r\n      doc.insert(0, linesFor(0, text.length));\r\n      doc.remove(text.length, doc.size - text.length);\r\n    } else if (isWholeLineUpdate(doc, change)) {\r\n      // This is a whole-line replace. Treated specially to make\r\n      // sure line objects move the way they are supposed to.\r\n      var added = linesFor(0, text.length - 1);\r\n      update(lastLine, lastLine.text, lastSpans);\r\n      if (nlines) doc.remove(from.line, nlines);\r\n      if (added.length) doc.insert(from.line, added);\r\n    } else if (firstLine == lastLine) {\r\n      if (text.length == 1) {\r\n        update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);\r\n      } else {\r\n        var added = linesFor(1, text.length - 1);\r\n        added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));\r\n        update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\r\n        doc.insert(from.line + 1, added);\r\n      }\r\n    } else if (text.length == 1) {\r\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));\r\n      doc.remove(from.line + 1, nlines);\r\n    } else {\r\n      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));\r\n      update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);\r\n      var added = linesFor(1, text.length - 1);\r\n      if (nlines > 1) doc.remove(from.line + 1, nlines - 1);\r\n      doc.insert(from.line + 1, added);\r\n    }\r\n\r\n    signalLater(doc, \"change\", doc, change);\r\n  }\r\n\r\n  // The document is represented as a BTree consisting of leaves, with\r\n  // chunk of lines in them, and branches, with up to ten leaves or\r\n  // other branch nodes below them. The top node is always a branch\r\n  // node, and is the document object itself (meaning it has\r\n  // additional methods and properties).\r\n  //\r\n  // All nodes have parent links. The tree is used both to go from\r\n  // line numbers to line objects, and to go from objects to numbers.\r\n  // It also indexes by height, and is used to convert between height\r\n  // and line object, and to find the total height of the document.\r\n  //\r\n  // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html\r\n\r\n  function LeafChunk(lines) {\r\n    this.lines = lines;\r\n    this.parent = null;\r\n    for (var i = 0, height = 0; i < lines.length; ++i) {\r\n      lines[i].parent = this;\r\n      height += lines[i].height;\r\n    }\r\n    this.height = height;\r\n  }\r\n\r\n  LeafChunk.prototype = {\r\n    chunkSize: function() { return this.lines.length; },\r\n    // Remove the n lines at offset 'at'.\r\n    removeInner: function(at, n) {\r\n      for (var i = at, e = at + n; i < e; ++i) {\r\n        var line = this.lines[i];\r\n        this.height -= line.height;\r\n        cleanUpLine(line);\r\n        signalLater(line, \"delete\");\r\n      }\r\n      this.lines.splice(at, n);\r\n    },\r\n    // Helper used to collapse a small branch into a single leaf.\r\n    collapse: function(lines) {\r\n      lines.push.apply(lines, this.lines);\r\n    },\r\n    // Insert the given array of lines at offset 'at', count them as\r\n    // having the given height.\r\n    insertInner: function(at, lines, height) {\r\n      this.height += height;\r\n      this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));\r\n      for (var i = 0; i < lines.length; ++i) lines[i].parent = this;\r\n    },\r\n    // Used to iterate over a part of the tree.\r\n    iterN: function(at, n, op) {\r\n      for (var e = at + n; at < e; ++at)\r\n        if (op(this.lines[at])) return true;\r\n    }\r\n  };\r\n\r\n  function BranchChunk(children) {\r\n    this.children = children;\r\n    var size = 0, height = 0;\r\n    for (var i = 0; i < children.length; ++i) {\r\n      var ch = children[i];\r\n      size += ch.chunkSize(); height += ch.height;\r\n      ch.parent = this;\r\n    }\r\n    this.size = size;\r\n    this.height = height;\r\n    this.parent = null;\r\n  }\r\n\r\n  BranchChunk.prototype = {\r\n    chunkSize: function() { return this.size; },\r\n    removeInner: function(at, n) {\r\n      this.size -= n;\r\n      for (var i = 0; i < this.children.length; ++i) {\r\n        var child = this.children[i], sz = child.chunkSize();\r\n        if (at < sz) {\r\n          var rm = Math.min(n, sz - at), oldHeight = child.height;\r\n          child.removeInner(at, rm);\r\n          this.height -= oldHeight - child.height;\r\n          if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }\r\n          if ((n -= rm) == 0) break;\r\n          at = 0;\r\n        } else at -= sz;\r\n      }\r\n      // If the result is smaller than 25 lines, ensure that it is a\r\n      // single leaf node.\r\n      if (this.size - n < 25 &&\r\n          (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {\r\n        var lines = [];\r\n        this.collapse(lines);\r\n        this.children = [new LeafChunk(lines)];\r\n        this.children[0].parent = this;\r\n      }\r\n    },\r\n    collapse: function(lines) {\r\n      for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);\r\n    },\r\n    insertInner: function(at, lines, height) {\r\n      this.size += lines.length;\r\n      this.height += height;\r\n      for (var i = 0; i < this.children.length; ++i) {\r\n        var child = this.children[i], sz = child.chunkSize();\r\n        if (at <= sz) {\r\n          child.insertInner(at, lines, height);\r\n          if (child.lines && child.lines.length > 50) {\r\n            while (child.lines.length > 50) {\r\n              var spilled = child.lines.splice(child.lines.length - 25, 25);\r\n              var newleaf = new LeafChunk(spilled);\r\n              child.height -= newleaf.height;\r\n              this.children.splice(i + 1, 0, newleaf);\r\n              newleaf.parent = this;\r\n            }\r\n            this.maybeSpill();\r\n          }\r\n          break;\r\n        }\r\n        at -= sz;\r\n      }\r\n    },\r\n    // When a node has grown, check whether it should be split.\r\n    maybeSpill: function() {\r\n      if (this.children.length <= 10) return;\r\n      var me = this;\r\n      do {\r\n        var spilled = me.children.splice(me.children.length - 5, 5);\r\n        var sibling = new BranchChunk(spilled);\r\n        if (!me.parent) { // Become the parent node\r\n          var copy = new BranchChunk(me.children);\r\n          copy.parent = me;\r\n          me.children = [copy, sibling];\r\n          me = copy;\r\n        } else {\r\n          me.size -= sibling.size;\r\n          me.height -= sibling.height;\r\n          var myIndex = indexOf(me.parent.children, me);\r\n          me.parent.children.splice(myIndex + 1, 0, sibling);\r\n        }\r\n        sibling.parent = me.parent;\r\n      } while (me.children.length > 10);\r\n      me.parent.maybeSpill();\r\n    },\r\n    iterN: function(at, n, op) {\r\n      for (var i = 0; i < this.children.length; ++i) {\r\n        var child = this.children[i], sz = child.chunkSize();\r\n        if (at < sz) {\r\n          var used = Math.min(n, sz - at);\r\n          if (child.iterN(at, used, op)) return true;\r\n          if ((n -= used) == 0) break;\r\n          at = 0;\r\n        } else at -= sz;\r\n      }\r\n    }\r\n  };\r\n\r\n  var nextDocId = 0;\r\n  var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) {\r\n    if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);\r\n    if (firstLine == null) firstLine = 0;\r\n\r\n    BranchChunk.call(this, [new LeafChunk([new Line(\"\", null)])]);\r\n    this.first = firstLine;\r\n    this.scrollTop = this.scrollLeft = 0;\r\n    this.cantEdit = false;\r\n    this.cleanGeneration = 1;\r\n    this.frontier = firstLine;\r\n    var start = Pos(firstLine, 0);\r\n    this.sel = simpleSelection(start);\r\n    this.history = new History(null);\r\n    this.id = ++nextDocId;\r\n    this.modeOption = mode;\r\n    this.lineSep = lineSep;\r\n\r\n    if (typeof text == \"string\") text = this.splitLines(text);\r\n    updateDoc(this, {from: start, to: start, text: text});\r\n    setSelection(this, simpleSelection(start), sel_dontScroll);\r\n  };\r\n\r\n  Doc.prototype = createObj(BranchChunk.prototype, {\r\n    constructor: Doc,\r\n    // Iterate over the document. Supports two forms -- with only one\r\n    // argument, it calls that for each line in the document. With\r\n    // three, it iterates over the range given by the first two (with\r\n    // the second being non-inclusive).\r\n    iter: function(from, to, op) {\r\n      if (op) this.iterN(from - this.first, to - from, op);\r\n      else this.iterN(this.first, this.first + this.size, from);\r\n    },\r\n\r\n    // Non-public interface for adding and removing lines.\r\n    insert: function(at, lines) {\r\n      var height = 0;\r\n      for (var i = 0; i < lines.length; ++i) height += lines[i].height;\r\n      this.insertInner(at - this.first, lines, height);\r\n    },\r\n    remove: function(at, n) { this.removeInner(at - this.first, n); },\r\n\r\n    // From here, the methods are part of the public interface. Most\r\n    // are also available from CodeMirror (editor) instances.\r\n\r\n    getValue: function(lineSep) {\r\n      var lines = getLines(this, this.first, this.first + this.size);\r\n      if (lineSep === false) return lines;\r\n      return lines.join(lineSep || this.lineSeparator());\r\n    },\r\n    setValue: docMethodOp(function(code) {\r\n      var top = Pos(this.first, 0), last = this.first + this.size - 1;\r\n      makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),\r\n                        text: this.splitLines(code), origin: \"setValue\", full: true}, true);\r\n      setSelection(this, simpleSelection(top));\r\n    }),\r\n    replaceRange: function(code, from, to, origin) {\r\n      from = clipPos(this, from);\r\n      to = to ? clipPos(this, to) : from;\r\n      replaceRange(this, code, from, to, origin);\r\n    },\r\n    getRange: function(from, to, lineSep) {\r\n      var lines = getBetween(this, clipPos(this, from), clipPos(this, to));\r\n      if (lineSep === false) return lines;\r\n      return lines.join(lineSep || this.lineSeparator());\r\n    },\r\n\r\n    getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},\r\n\r\n    getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},\r\n    getLineNumber: function(line) {return lineNo(line);},\r\n\r\n    getLineHandleVisualStart: function(line) {\r\n      if (typeof line == \"number\") line = getLine(this, line);\r\n      return visualLine(line);\r\n    },\r\n\r\n    lineCount: function() {return this.size;},\r\n    firstLine: function() {return this.first;},\r\n    lastLine: function() {return this.first + this.size - 1;},\r\n\r\n    clipPos: function(pos) {return clipPos(this, pos);},\r\n\r\n    getCursor: function(start) {\r\n      var range = this.sel.primary(), pos;\r\n      if (start == null || start == \"head\") pos = range.head;\r\n      else if (start == \"anchor\") pos = range.anchor;\r\n      else if (start == \"end\" || start == \"to\" || start === false) pos = range.to();\r\n      else pos = range.from();\r\n      return pos;\r\n    },\r\n    listSelections: function() { return this.sel.ranges; },\r\n    somethingSelected: function() {return this.sel.somethingSelected();},\r\n\r\n    setCursor: docMethodOp(function(line, ch, options) {\r\n      setSimpleSelection(this, clipPos(this, typeof line == \"number\" ? Pos(line, ch || 0) : line), null, options);\r\n    }),\r\n    setSelection: docMethodOp(function(anchor, head, options) {\r\n      setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);\r\n    }),\r\n    extendSelection: docMethodOp(function(head, other, options) {\r\n      extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);\r\n    }),\r\n    extendSelections: docMethodOp(function(heads, options) {\r\n      extendSelections(this, clipPosArray(this, heads, options));\r\n    }),\r\n    extendSelectionsBy: docMethodOp(function(f, options) {\r\n      extendSelections(this, map(this.sel.ranges, f), options);\r\n    }),\r\n    setSelections: docMethodOp(function(ranges, primary, options) {\r\n      if (!ranges.length) return;\r\n      for (var i = 0, out = []; i < ranges.length; i++)\r\n        out[i] = new Range(clipPos(this, ranges[i].anchor),\r\n                           clipPos(this, ranges[i].head));\r\n      if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);\r\n      setSelection(this, normalizeSelection(out, primary), options);\r\n    }),\r\n    addSelection: docMethodOp(function(anchor, head, options) {\r\n      var ranges = this.sel.ranges.slice(0);\r\n      ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));\r\n      setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);\r\n    }),\r\n\r\n    getSelection: function(lineSep) {\r\n      var ranges = this.sel.ranges, lines;\r\n      for (var i = 0; i < ranges.length; i++) {\r\n        var sel = getBetween(this, ranges[i].from(), ranges[i].to());\r\n        lines = lines ? lines.concat(sel) : sel;\r\n      }\r\n      if (lineSep === false) return lines;\r\n      else return lines.join(lineSep || this.lineSeparator());\r\n    },\r\n    getSelections: function(lineSep) {\r\n      var parts = [], ranges = this.sel.ranges;\r\n      for (var i = 0; i < ranges.length; i++) {\r\n        var sel = getBetween(this, ranges[i].from(), ranges[i].to());\r\n        if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());\r\n        parts[i] = sel;\r\n      }\r\n      return parts;\r\n    },\r\n    replaceSelection: function(code, collapse, origin) {\r\n      var dup = [];\r\n      for (var i = 0; i < this.sel.ranges.length; i++)\r\n        dup[i] = code;\r\n      this.replaceSelections(dup, collapse, origin || \"+input\");\r\n    },\r\n    replaceSelections: docMethodOp(function(code, collapse, origin) {\r\n      var changes = [], sel = this.sel;\r\n      for (var i = 0; i < sel.ranges.length; i++) {\r\n        var range = sel.ranges[i];\r\n        changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};\r\n      }\r\n      var newSel = collapse && collapse != \"end\" && computeReplacedSel(this, changes, collapse);\r\n      for (var i = changes.length - 1; i >= 0; i--)\r\n        makeChange(this, changes[i]);\r\n      if (newSel) setSelectionReplaceHistory(this, newSel);\r\n      else if (this.cm) ensureCursorVisible(this.cm);\r\n    }),\r\n    undo: docMethodOp(function() {makeChangeFromHistory(this, \"undo\");}),\r\n    redo: docMethodOp(function() {makeChangeFromHistory(this, \"redo\");}),\r\n    undoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"undo\", true);}),\r\n    redoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"redo\", true);}),\r\n\r\n    setExtending: function(val) {this.extend = val;},\r\n    getExtending: function() {return this.extend;},\r\n\r\n    historySize: function() {\r\n      var hist = this.history, done = 0, undone = 0;\r\n      for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;\r\n      for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;\r\n      return {undo: done, redo: undone};\r\n    },\r\n    clearHistory: function() {this.history = new History(this.history.maxGeneration);},\r\n\r\n    markClean: function() {\r\n      this.cleanGeneration = this.changeGeneration(true);\r\n    },\r\n    changeGeneration: function(forceSplit) {\r\n      if (forceSplit)\r\n        this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;\r\n      return this.history.generation;\r\n    },\r\n    isClean: function (gen) {\r\n      return this.history.generation == (gen || this.cleanGeneration);\r\n    },\r\n\r\n    getHistory: function() {\r\n      return {done: copyHistoryArray(this.history.done),\r\n              undone: copyHistoryArray(this.history.undone)};\r\n    },\r\n    setHistory: function(histData) {\r\n      var hist = this.history = new History(this.history.maxGeneration);\r\n      hist.done = copyHistoryArray(histData.done.slice(0), null, true);\r\n      hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);\r\n    },\r\n\r\n    addLineClass: docMethodOp(function(handle, where, cls) {\r\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function(line) {\r\n        var prop = where == \"text\" ? \"textClass\"\r\n                 : where == \"background\" ? \"bgClass\"\r\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\r\n        if (!line[prop]) line[prop] = cls;\r\n        else if (classTest(cls).test(line[prop])) return false;\r\n        else line[prop] += \" \" + cls;\r\n        return true;\r\n      });\r\n    }),\r\n    removeLineClass: docMethodOp(function(handle, where, cls) {\r\n      return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function(line) {\r\n        var prop = where == \"text\" ? \"textClass\"\r\n                 : where == \"background\" ? \"bgClass\"\r\n                 : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\";\r\n        var cur = line[prop];\r\n        if (!cur) return false;\r\n        else if (cls == null) line[prop] = null;\r\n        else {\r\n          var found = cur.match(classTest(cls));\r\n          if (!found) return false;\r\n          var end = found.index + found[0].length;\r\n          line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? \"\" : \" \") + cur.slice(end) || null;\r\n        }\r\n        return true;\r\n      });\r\n    }),\r\n\r\n    addLineWidget: docMethodOp(function(handle, node, options) {\r\n      return addLineWidget(this, handle, node, options);\r\n    }),\r\n    removeLineWidget: function(widget) { widget.clear(); },\r\n\r\n    markText: function(from, to, options) {\r\n      return markText(this, clipPos(this, from), clipPos(this, to), options, \"range\");\r\n    },\r\n    setBookmark: function(pos, options) {\r\n      var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),\r\n                      insertLeft: options && options.insertLeft,\r\n                      clearWhenEmpty: false, shared: options && options.shared,\r\n                      handleMouseEvents: options && options.handleMouseEvents};\r\n      pos = clipPos(this, pos);\r\n      return markText(this, pos, pos, realOpts, \"bookmark\");\r\n    },\r\n    findMarksAt: function(pos) {\r\n      pos = clipPos(this, pos);\r\n      var markers = [], spans = getLine(this, pos.line).markedSpans;\r\n      if (spans) for (var i = 0; i < spans.length; ++i) {\r\n        var span = spans[i];\r\n        if ((span.from == null || span.from <= pos.ch) &&\r\n            (span.to == null || span.to >= pos.ch))\r\n          markers.push(span.marker.parent || span.marker);\r\n      }\r\n      return markers;\r\n    },\r\n    findMarks: function(from, to, filter) {\r\n      from = clipPos(this, from); to = clipPos(this, to);\r\n      var found = [], lineNo = from.line;\r\n      this.iter(from.line, to.line + 1, function(line) {\r\n        var spans = line.markedSpans;\r\n        if (spans) for (var i = 0; i < spans.length; i++) {\r\n          var span = spans[i];\r\n          if (!(lineNo == from.line && from.ch > span.to ||\r\n                span.from == null && lineNo != from.line||\r\n                lineNo == to.line && span.from > to.ch) &&\r\n              (!filter || filter(span.marker)))\r\n            found.push(span.marker.parent || span.marker);\r\n        }\r\n        ++lineNo;\r\n      });\r\n      return found;\r\n    },\r\n    getAllMarks: function() {\r\n      var markers = [];\r\n      this.iter(function(line) {\r\n        var sps = line.markedSpans;\r\n        if (sps) for (var i = 0; i < sps.length; ++i)\r\n          if (sps[i].from != null) markers.push(sps[i].marker);\r\n      });\r\n      return markers;\r\n    },\r\n\r\n    posFromIndex: function(off) {\r\n      var ch, lineNo = this.first;\r\n      this.iter(function(line) {\r\n        var sz = line.text.length + 1;\r\n        if (sz > off) { ch = off; return true; }\r\n        off -= sz;\r\n        ++lineNo;\r\n      });\r\n      return clipPos(this, Pos(lineNo, ch));\r\n    },\r\n    indexFromPos: function (coords) {\r\n      coords = clipPos(this, coords);\r\n      var index = coords.ch;\r\n      if (coords.line < this.first || coords.ch < 0) return 0;\r\n      this.iter(this.first, coords.line, function (line) {\r\n        index += line.text.length + 1;\r\n      });\r\n      return index;\r\n    },\r\n\r\n    copy: function(copyHistory) {\r\n      var doc = new Doc(getLines(this, this.first, this.first + this.size),\r\n                        this.modeOption, this.first, this.lineSep);\r\n      doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;\r\n      doc.sel = this.sel;\r\n      doc.extend = false;\r\n      if (copyHistory) {\r\n        doc.history.undoDepth = this.history.undoDepth;\r\n        doc.setHistory(this.getHistory());\r\n      }\r\n      return doc;\r\n    },\r\n\r\n    linkedDoc: function(options) {\r\n      if (!options) options = {};\r\n      var from = this.first, to = this.first + this.size;\r\n      if (options.from != null && options.from > from) from = options.from;\r\n      if (options.to != null && options.to < to) to = options.to;\r\n      var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep);\r\n      if (options.sharedHist) copy.history = this.history;\r\n      (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});\r\n      copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];\r\n      copySharedMarkers(copy, findSharedMarkers(this));\r\n      return copy;\r\n    },\r\n    unlinkDoc: function(other) {\r\n      if (other instanceof CodeMirror) other = other.doc;\r\n      if (this.linked) for (var i = 0; i < this.linked.length; ++i) {\r\n        var link = this.linked[i];\r\n        if (link.doc != other) continue;\r\n        this.linked.splice(i, 1);\r\n        other.unlinkDoc(this);\r\n        detachSharedMarkers(findSharedMarkers(this));\r\n        break;\r\n      }\r\n      // If the histories were shared, split them again\r\n      if (other.history == this.history) {\r\n        var splitIds = [other.id];\r\n        linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);\r\n        other.history = new History(null);\r\n        other.history.done = copyHistoryArray(this.history.done, splitIds);\r\n        other.history.undone = copyHistoryArray(this.history.undone, splitIds);\r\n      }\r\n    },\r\n    iterLinkedDocs: function(f) {linkedDocs(this, f);},\r\n\r\n    getMode: function() {return this.mode;},\r\n    getEditor: function() {return this.cm;},\r\n\r\n    splitLines: function(str) {\r\n      if (this.lineSep) return str.split(this.lineSep);\r\n      return splitLinesAuto(str);\r\n    },\r\n    lineSeparator: function() { return this.lineSep || \"\\n\"; }\r\n  });\r\n\r\n  // Public alias.\r\n  Doc.prototype.eachLine = Doc.prototype.iter;\r\n\r\n  // Set up methods on CodeMirror's prototype to redirect to the editor's document.\r\n  var dontDelegate = \"iter insert remove copy getEditor constructor\".split(\" \");\r\n  for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)\r\n    CodeMirror.prototype[prop] = (function(method) {\r\n      return function() {return method.apply(this.doc, arguments);};\r\n    })(Doc.prototype[prop]);\r\n\r\n  eventMixin(Doc);\r\n\r\n  // Call f for all linked documents.\r\n  function linkedDocs(doc, f, sharedHistOnly) {\r\n    function propagate(doc, skip, sharedHist) {\r\n      if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {\r\n        var rel = doc.linked[i];\r\n        if (rel.doc == skip) continue;\r\n        var shared = sharedHist && rel.sharedHist;\r\n        if (sharedHistOnly && !shared) continue;\r\n        f(rel.doc, shared);\r\n        propagate(rel.doc, doc, shared);\r\n      }\r\n    }\r\n    propagate(doc, null, true);\r\n  }\r\n\r\n  // Attach a document to an editor.\r\n  function attachDoc(cm, doc) {\r\n    if (doc.cm) throw new Error(\"This document is already in use.\");\r\n    cm.doc = doc;\r\n    doc.cm = cm;\r\n    estimateLineHeights(cm);\r\n    loadMode(cm);\r\n    if (!cm.options.lineWrapping) findMaxLine(cm);\r\n    cm.options.mode = doc.modeOption;\r\n    regChange(cm);\r\n  }\r\n\r\n  // LINE UTILITIES\r\n\r\n  // Find the line object corresponding to the given line number.\r\n  function getLine(doc, n) {\r\n    n -= doc.first;\r\n    if (n < 0 || n >= doc.size) throw new Error(\"There is no line \" + (n + doc.first) + \" in the document.\");\r\n    for (var chunk = doc; !chunk.lines;) {\r\n      for (var i = 0;; ++i) {\r\n        var child = chunk.children[i], sz = child.chunkSize();\r\n        if (n < sz) { chunk = child; break; }\r\n        n -= sz;\r\n      }\r\n    }\r\n    return chunk.lines[n];\r\n  }\r\n\r\n  // Get the part of a document between two positions, as an array of\r\n  // strings.\r\n  function getBetween(doc, start, end) {\r\n    var out = [], n = start.line;\r\n    doc.iter(start.line, end.line + 1, function(line) {\r\n      var text = line.text;\r\n      if (n == end.line) text = text.slice(0, end.ch);\r\n      if (n == start.line) text = text.slice(start.ch);\r\n      out.push(text);\r\n      ++n;\r\n    });\r\n    return out;\r\n  }\r\n  // Get the lines between from and to, as array of strings.\r\n  function getLines(doc, from, to) {\r\n    var out = [];\r\n    doc.iter(from, to, function(line) { out.push(line.text); });\r\n    return out;\r\n  }\r\n\r\n  // Update the height of a line, propagating the height change\r\n  // upwards to parent nodes.\r\n  function updateLineHeight(line, height) {\r\n    var diff = height - line.height;\r\n    if (diff) for (var n = line; n; n = n.parent) n.height += diff;\r\n  }\r\n\r\n  // Given a line object, find its line number by walking up through\r\n  // its parent links.\r\n  function lineNo(line) {\r\n    if (line.parent == null) return null;\r\n    var cur = line.parent, no = indexOf(cur.lines, line);\r\n    for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\r\n      for (var i = 0;; ++i) {\r\n        if (chunk.children[i] == cur) break;\r\n        no += chunk.children[i].chunkSize();\r\n      }\r\n    }\r\n    return no + cur.first;\r\n  }\r\n\r\n  // Find the line at the given vertical position, using the height\r\n  // information in the document tree.\r\n  function lineAtHeight(chunk, h) {\r\n    var n = chunk.first;\r\n    outer: do {\r\n      for (var i = 0; i < chunk.children.length; ++i) {\r\n        var child = chunk.children[i], ch = child.height;\r\n        if (h < ch) { chunk = child; continue outer; }\r\n        h -= ch;\r\n        n += child.chunkSize();\r\n      }\r\n      return n;\r\n    } while (!chunk.lines);\r\n    for (var i = 0; i < chunk.lines.length; ++i) {\r\n      var line = chunk.lines[i], lh = line.height;\r\n      if (h < lh) break;\r\n      h -= lh;\r\n    }\r\n    return n + i;\r\n  }\r\n\r\n\r\n  // Find the height above the given line.\r\n  function heightAtLine(lineObj) {\r\n    lineObj = visualLine(lineObj);\r\n\r\n    var h = 0, chunk = lineObj.parent;\r\n    for (var i = 0; i < chunk.lines.length; ++i) {\r\n      var line = chunk.lines[i];\r\n      if (line == lineObj) break;\r\n      else h += line.height;\r\n    }\r\n    for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {\r\n      for (var i = 0; i < p.children.length; ++i) {\r\n        var cur = p.children[i];\r\n        if (cur == chunk) break;\r\n        else h += cur.height;\r\n      }\r\n    }\r\n    return h;\r\n  }\r\n\r\n  // Get the bidi ordering for the given line (and cache it). Returns\r\n  // false for lines that are fully left-to-right, and an array of\r\n  // BidiSpan objects otherwise.\r\n  function getOrder(line) {\r\n    var order = line.order;\r\n    if (order == null) order = line.order = bidiOrdering(line.text);\r\n    return order;\r\n  }\r\n\r\n  // HISTORY\r\n\r\n  function History(startGen) {\r\n    // Arrays of change events and selections. Doing something adds an\r\n    // event to done and clears undo. Undoing moves events from done\r\n    // to undone, redoing moves them in the other direction.\r\n    this.done = []; this.undone = [];\r\n    this.undoDepth = Infinity;\r\n    // Used to track when changes can be merged into a single undo\r\n    // event\r\n    this.lastModTime = this.lastSelTime = 0;\r\n    this.lastOp = this.lastSelOp = null;\r\n    this.lastOrigin = this.lastSelOrigin = null;\r\n    // Used by the isClean() method\r\n    this.generation = this.maxGeneration = startGen || 1;\r\n  }\r\n\r\n  // Create a history change event from an updateDoc-style change\r\n  // object.\r\n  function historyChangeFromChange(doc, change) {\r\n    var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};\r\n    attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);\r\n    linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);\r\n    return histChange;\r\n  }\r\n\r\n  // Pop all selection events off the end of a history array. Stop at\r\n  // a change event.\r\n  function clearSelectionEvents(array) {\r\n    while (array.length) {\r\n      var last = lst(array);\r\n      if (last.ranges) array.pop();\r\n      else break;\r\n    }\r\n  }\r\n\r\n  // Find the top change event in the history. Pop off selection\r\n  // events that are in the way.\r\n  function lastChangeEvent(hist, force) {\r\n    if (force) {\r\n      clearSelectionEvents(hist.done);\r\n      return lst(hist.done);\r\n    } else if (hist.done.length && !lst(hist.done).ranges) {\r\n      return lst(hist.done);\r\n    } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {\r\n      hist.done.pop();\r\n      return lst(hist.done);\r\n    }\r\n  }\r\n\r\n  // Register a change in the history. Merges changes that are within\r\n  // a single operation, ore are close together with an origin that\r\n  // allows merging (starting with \"+\") into a single event.\r\n  function addChangeToHistory(doc, change, selAfter, opId) {\r\n    var hist = doc.history;\r\n    hist.undone.length = 0;\r\n    var time = +new Date, cur;\r\n\r\n    if ((hist.lastOp == opId ||\r\n         hist.lastOrigin == change.origin && change.origin &&\r\n         ((change.origin.charAt(0) == \"+\" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||\r\n          change.origin.charAt(0) == \"*\")) &&\r\n        (cur = lastChangeEvent(hist, hist.lastOp == opId))) {\r\n      // Merge this change into the last event\r\n      var last = lst(cur.changes);\r\n      if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {\r\n        // Optimized case for simple insertion -- don't want to add\r\n        // new changesets for every character typed\r\n        last.to = changeEnd(change);\r\n      } else {\r\n        // Add new sub-event\r\n        cur.changes.push(historyChangeFromChange(doc, change));\r\n      }\r\n    } else {\r\n      // Can not be merged, start a new event.\r\n      var before = lst(hist.done);\r\n      if (!before || !before.ranges)\r\n        pushSelectionToHistory(doc.sel, hist.done);\r\n      cur = {changes: [historyChangeFromChange(doc, change)],\r\n             generation: hist.generation};\r\n      hist.done.push(cur);\r\n      while (hist.done.length > hist.undoDepth) {\r\n        hist.done.shift();\r\n        if (!hist.done[0].ranges) hist.done.shift();\r\n      }\r\n    }\r\n    hist.done.push(selAfter);\r\n    hist.generation = ++hist.maxGeneration;\r\n    hist.lastModTime = hist.lastSelTime = time;\r\n    hist.lastOp = hist.lastSelOp = opId;\r\n    hist.lastOrigin = hist.lastSelOrigin = change.origin;\r\n\r\n    if (!last) signal(doc, \"historyAdded\");\r\n  }\r\n\r\n  function selectionEventCanBeMerged(doc, origin, prev, sel) {\r\n    var ch = origin.charAt(0);\r\n    return ch == \"*\" ||\r\n      ch == \"+\" &&\r\n      prev.ranges.length == sel.ranges.length &&\r\n      prev.somethingSelected() == sel.somethingSelected() &&\r\n      new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);\r\n  }\r\n\r\n  // Called whenever the selection changes, sets the new selection as\r\n  // the pending selection in the history, and pushes the old pending\r\n  // selection into the 'done' array when it was significantly\r\n  // different (in number of selected ranges, emptiness, or time).\r\n  function addSelectionToHistory(doc, sel, opId, options) {\r\n    var hist = doc.history, origin = options && options.origin;\r\n\r\n    // A new event is started when the previous origin does not match\r\n    // the current, or the origins don't allow matching. Origins\r\n    // starting with * are always merged, those starting with + are\r\n    // merged when similar and close together in time.\r\n    if (opId == hist.lastSelOp ||\r\n        (origin && hist.lastSelOrigin == origin &&\r\n         (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||\r\n          selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))\r\n      hist.done[hist.done.length - 1] = sel;\r\n    else\r\n      pushSelectionToHistory(sel, hist.done);\r\n\r\n    hist.lastSelTime = +new Date;\r\n    hist.lastSelOrigin = origin;\r\n    hist.lastSelOp = opId;\r\n    if (options && options.clearRedo !== false)\r\n      clearSelectionEvents(hist.undone);\r\n  }\r\n\r\n  function pushSelectionToHistory(sel, dest) {\r\n    var top = lst(dest);\r\n    if (!(top && top.ranges && top.equals(sel)))\r\n      dest.push(sel);\r\n  }\r\n\r\n  // Used to store marked span information in the history.\r\n  function attachLocalSpans(doc, change, from, to) {\r\n    var existing = change[\"spans_\" + doc.id], n = 0;\r\n    doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {\r\n      if (line.markedSpans)\r\n        (existing || (existing = change[\"spans_\" + doc.id] = {}))[n] = line.markedSpans;\r\n      ++n;\r\n    });\r\n  }\r\n\r\n  // When un/re-doing restores text containing marked spans, those\r\n  // that have been explicitly cleared should not be restored.\r\n  function removeClearedSpans(spans) {\r\n    if (!spans) return null;\r\n    for (var i = 0, out; i < spans.length; ++i) {\r\n      if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }\r\n      else if (out) out.push(spans[i]);\r\n    }\r\n    return !out ? spans : out.length ? out : null;\r\n  }\r\n\r\n  // Retrieve and filter the old marked spans stored in a change event.\r\n  function getOldSpans(doc, change) {\r\n    var found = change[\"spans_\" + doc.id];\r\n    if (!found) return null;\r\n    for (var i = 0, nw = []; i < change.text.length; ++i)\r\n      nw.push(removeClearedSpans(found[i]));\r\n    return nw;\r\n  }\r\n\r\n  // Used both to provide a JSON-safe object in .getHistory, and, when\r\n  // detaching a document, to split the history in two\r\n  function copyHistoryArray(events, newGroup, instantiateSel) {\r\n    for (var i = 0, copy = []; i < events.length; ++i) {\r\n      var event = events[i];\r\n      if (event.ranges) {\r\n        copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);\r\n        continue;\r\n      }\r\n      var changes = event.changes, newChanges = [];\r\n      copy.push({changes: newChanges});\r\n      for (var j = 0; j < changes.length; ++j) {\r\n        var change = changes[j], m;\r\n        newChanges.push({from: change.from, to: change.to, text: change.text});\r\n        if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\\d+)$/)) {\r\n          if (indexOf(newGroup, Number(m[1])) > -1) {\r\n            lst(newChanges)[prop] = change[prop];\r\n            delete change[prop];\r\n          }\r\n        }\r\n      }\r\n    }\r\n    return copy;\r\n  }\r\n\r\n  // Rebasing/resetting history to deal with externally-sourced changes\r\n\r\n  function rebaseHistSelSingle(pos, from, to, diff) {\r\n    if (to < pos.line) {\r\n      pos.line += diff;\r\n    } else if (from < pos.line) {\r\n      pos.line = from;\r\n      pos.ch = 0;\r\n    }\r\n  }\r\n\r\n  // Tries to rebase an array of history events given a change in the\r\n  // document. If the change touches the same lines as the event, the\r\n  // event, and everything 'behind' it, is discarded. If the change is\r\n  // before the event, the event's positions are updated. Uses a\r\n  // copy-on-write scheme for the positions, to avoid having to\r\n  // reallocate them all on every rebase, but also avoid problems with\r\n  // shared position objects being unsafely updated.\r\n  function rebaseHistArray(array, from, to, diff) {\r\n    for (var i = 0; i < array.length; ++i) {\r\n      var sub = array[i], ok = true;\r\n      if (sub.ranges) {\r\n        if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }\r\n        for (var j = 0; j < sub.ranges.length; j++) {\r\n          rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);\r\n          rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);\r\n        }\r\n        continue;\r\n      }\r\n      for (var j = 0; j < sub.changes.length; ++j) {\r\n        var cur = sub.changes[j];\r\n        if (to < cur.from.line) {\r\n          cur.from = Pos(cur.from.line + diff, cur.from.ch);\r\n          cur.to = Pos(cur.to.line + diff, cur.to.ch);\r\n        } else if (from <= cur.to.line) {\r\n          ok = false;\r\n          break;\r\n        }\r\n      }\r\n      if (!ok) {\r\n        array.splice(0, i + 1);\r\n        i = 0;\r\n      }\r\n    }\r\n  }\r\n\r\n  function rebaseHist(hist, change) {\r\n    var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;\r\n    rebaseHistArray(hist.done, from, to, diff);\r\n    rebaseHistArray(hist.undone, from, to, diff);\r\n  }\r\n\r\n  // EVENT UTILITIES\r\n\r\n  // Due to the fact that we still support jurassic IE versions, some\r\n  // compatibility wrappers are needed.\r\n\r\n  var e_preventDefault = CodeMirror.e_preventDefault = function(e) {\r\n    if (e.preventDefault) e.preventDefault();\r\n    else e.returnValue = false;\r\n  };\r\n  var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {\r\n    if (e.stopPropagation) e.stopPropagation();\r\n    else e.cancelBubble = true;\r\n  };\r\n  function e_defaultPrevented(e) {\r\n    return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;\r\n  }\r\n  var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};\r\n\r\n  function e_target(e) {return e.target || e.srcElement;}\r\n  function e_button(e) {\r\n    var b = e.which;\r\n    if (b == null) {\r\n      if (e.button & 1) b = 1;\r\n      else if (e.button & 2) b = 3;\r\n      else if (e.button & 4) b = 2;\r\n    }\r\n    if (mac && e.ctrlKey && b == 1) b = 3;\r\n    return b;\r\n  }\r\n\r\n  // EVENT HANDLING\r\n\r\n  // Lightweight event framework. on/off also work on DOM nodes,\r\n  // registering native DOM handlers.\r\n\r\n  var on = CodeMirror.on = function(emitter, type, f) {\r\n    if (emitter.addEventListener)\r\n      emitter.addEventListener(type, f, false);\r\n    else if (emitter.attachEvent)\r\n      emitter.attachEvent(\"on\" + type, f);\r\n    else {\r\n      var map = emitter._handlers || (emitter._handlers = {});\r\n      var arr = map[type] || (map[type] = []);\r\n      arr.push(f);\r\n    }\r\n  };\r\n\r\n  var noHandlers = []\r\n  function getHandlers(emitter, type, copy) {\r\n    var arr = emitter._handlers && emitter._handlers[type]\r\n    if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers\r\n    else return arr || noHandlers\r\n  }\r\n\r\n  var off = CodeMirror.off = function(emitter, type, f) {\r\n    if (emitter.removeEventListener)\r\n      emitter.removeEventListener(type, f, false);\r\n    else if (emitter.detachEvent)\r\n      emitter.detachEvent(\"on\" + type, f);\r\n    else {\r\n      var handlers = getHandlers(emitter, type, false)\r\n      for (var i = 0; i < handlers.length; ++i)\r\n        if (handlers[i] == f) { handlers.splice(i, 1); break; }\r\n    }\r\n  };\r\n\r\n  var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {\r\n    var handlers = getHandlers(emitter, type, true)\r\n    if (!handlers.length) return;\r\n    var args = Array.prototype.slice.call(arguments, 2);\r\n    for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args);\r\n  };\r\n\r\n  var orphanDelayedCallbacks = null;\r\n\r\n  // Often, we want to signal events at a point where we are in the\r\n  // middle of some work, but don't want the handler to start calling\r\n  // other methods on the editor, which might be in an inconsistent\r\n  // state or simply not expect any other events to happen.\r\n  // signalLater looks whether there are any handlers, and schedules\r\n  // them to be executed when the last operation ends, or, if no\r\n  // operation is active, when a timeout fires.\r\n  function signalLater(emitter, type /*, values...*/) {\r\n    var arr = getHandlers(emitter, type, false)\r\n    if (!arr.length) return;\r\n    var args = Array.prototype.slice.call(arguments, 2), list;\r\n    if (operationGroup) {\r\n      list = operationGroup.delayedCallbacks;\r\n    } else if (orphanDelayedCallbacks) {\r\n      list = orphanDelayedCallbacks;\r\n    } else {\r\n      list = orphanDelayedCallbacks = [];\r\n      setTimeout(fireOrphanDelayed, 0);\r\n    }\r\n    function bnd(f) {return function(){f.apply(null, args);};};\r\n    for (var i = 0; i < arr.length; ++i)\r\n      list.push(bnd(arr[i]));\r\n  }\r\n\r\n  function fireOrphanDelayed() {\r\n    var delayed = orphanDelayedCallbacks;\r\n    orphanDelayedCallbacks = null;\r\n    for (var i = 0; i < delayed.length; ++i) delayed[i]();\r\n  }\r\n\r\n  // The DOM events that CodeMirror handles can be overridden by\r\n  // registering a (non-DOM) handler on the editor for the event name,\r\n  // and preventDefault-ing the event in that handler.\r\n  function signalDOMEvent(cm, e, override) {\r\n    if (typeof e == \"string\")\r\n      e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};\r\n    signal(cm, override || e.type, cm, e);\r\n    return e_defaultPrevented(e) || e.codemirrorIgnore;\r\n  }\r\n\r\n  function signalCursorActivity(cm) {\r\n    var arr = cm._handlers && cm._handlers.cursorActivity;\r\n    if (!arr) return;\r\n    var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);\r\n    for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)\r\n      set.push(arr[i]);\r\n  }\r\n\r\n  function hasHandler(emitter, type) {\r\n    return getHandlers(emitter, type).length > 0\r\n  }\r\n\r\n  // Add on and off methods to a constructor's prototype, to make\r\n  // registering events on such objects more convenient.\r\n  function eventMixin(ctor) {\r\n    ctor.prototype.on = function(type, f) {on(this, type, f);};\r\n    ctor.prototype.off = function(type, f) {off(this, type, f);};\r\n  }\r\n\r\n  // MISC UTILITIES\r\n\r\n  // Number of pixels added to scroller and sizer to hide scrollbar\r\n  var scrollerGap = 30;\r\n\r\n  // Returned or thrown by various protocols to signal 'I'm not\r\n  // handling this'.\r\n  var Pass = CodeMirror.Pass = {toString: function(){return \"CodeMirror.Pass\";}};\r\n\r\n  // Reused option objects for setSelection & friends\r\n  var sel_dontScroll = {scroll: false}, sel_mouse = {origin: \"*mouse\"}, sel_move = {origin: \"+move\"};\r\n\r\n  function Delayed() {this.id = null;}\r\n  Delayed.prototype.set = function(ms, f) {\r\n    clearTimeout(this.id);\r\n    this.id = setTimeout(f, ms);\r\n  };\r\n\r\n  // Counts the column offset in a string, taking tabs into account.\r\n  // Used mostly to find indentation.\r\n  var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {\r\n    if (end == null) {\r\n      end = string.search(/[^\\s\\u00a0]/);\r\n      if (end == -1) end = string.length;\r\n    }\r\n    for (var i = startIndex || 0, n = startValue || 0;;) {\r\n      var nextTab = string.indexOf(\"\\t\", i);\r\n      if (nextTab < 0 || nextTab >= end)\r\n        return n + (end - i);\r\n      n += nextTab - i;\r\n      n += tabSize - (n % tabSize);\r\n      i = nextTab + 1;\r\n    }\r\n  };\r\n\r\n  // The inverse of countColumn -- find the offset that corresponds to\r\n  // a particular column.\r\n  var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) {\r\n    for (var pos = 0, col = 0;;) {\r\n      var nextTab = string.indexOf(\"\\t\", pos);\r\n      if (nextTab == -1) nextTab = string.length;\r\n      var skipped = nextTab - pos;\r\n      if (nextTab == string.length || col + skipped >= goal)\r\n        return pos + Math.min(skipped, goal - col);\r\n      col += nextTab - pos;\r\n      col += tabSize - (col % tabSize);\r\n      pos = nextTab + 1;\r\n      if (col >= goal) return pos;\r\n    }\r\n  }\r\n\r\n  var spaceStrs = [\"\"];\r\n  function spaceStr(n) {\r\n    while (spaceStrs.length <= n)\r\n      spaceStrs.push(lst(spaceStrs) + \" \");\r\n    return spaceStrs[n];\r\n  }\r\n\r\n  function lst(arr) { return arr[arr.length-1]; }\r\n\r\n  var selectInput = function(node) { node.select(); };\r\n  if (ios) // Mobile Safari apparently has a bug where select() is broken.\r\n    selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };\r\n  else if (ie) // Suppress mysterious IE10 errors\r\n    selectInput = function(node) { try { node.select(); } catch(_e) {} };\r\n\r\n  function indexOf(array, elt) {\r\n    for (var i = 0; i < array.length; ++i)\r\n      if (array[i] == elt) return i;\r\n    return -1;\r\n  }\r\n  function map(array, f) {\r\n    var out = [];\r\n    for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);\r\n    return out;\r\n  }\r\n\r\n  function nothing() {}\r\n\r\n  function createObj(base, props) {\r\n    var inst;\r\n    if (Object.create) {\r\n      inst = Object.create(base);\r\n    } else {\r\n      nothing.prototype = base;\r\n      inst = new nothing();\r\n    }\r\n    if (props) copyObj(props, inst);\r\n    return inst;\r\n  };\r\n\r\n  function copyObj(obj, target, overwrite) {\r\n    if (!target) target = {};\r\n    for (var prop in obj)\r\n      if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))\r\n        target[prop] = obj[prop];\r\n    return target;\r\n  }\r\n\r\n  function bind(f) {\r\n    var args = Array.prototype.slice.call(arguments, 1);\r\n    return function(){return f.apply(null, args);};\r\n  }\r\n\r\n  var nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/;\r\n  var isWordCharBasic = CodeMirror.isWordChar = function(ch) {\r\n    return /\\w/.test(ch) || ch > \"\\x80\" &&\r\n      (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));\r\n  };\r\n  function isWordChar(ch, helper) {\r\n    if (!helper) return isWordCharBasic(ch);\r\n    if (helper.source.indexOf(\"\\\\w\") > -1 && isWordCharBasic(ch)) return true;\r\n    return helper.test(ch);\r\n  }\r\n\r\n  function isEmpty(obj) {\r\n    for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;\r\n    return true;\r\n  }\r\n\r\n  // Extending unicode characters. A series of a non-extending char +\r\n  // any number of extending chars is treated as a single unit as far\r\n  // as editing and measuring is concerned. This is not fully correct,\r\n  // since some scripts/fonts/browsers also treat other configurations\r\n  // of code points as a group.\r\n  var extendingChars = /[\\u0300-\\u036f\\u0483-\\u0489\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u065e\\u0670\\u06d6-\\u06dc\\u06de-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07eb-\\u07f3\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0900-\\u0902\\u093c\\u0941-\\u0948\\u094d\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09bc\\u09be\\u09c1-\\u09c4\\u09cd\\u09d7\\u09e2\\u09e3\\u0a01\\u0a02\\u0a3c\\u0a41\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a70\\u0a71\\u0a75\\u0a81\\u0a82\\u0abc\\u0ac1-\\u0ac5\\u0ac7\\u0ac8\\u0acd\\u0ae2\\u0ae3\\u0b01\\u0b3c\\u0b3e\\u0b3f\\u0b41-\\u0b44\\u0b4d\\u0b56\\u0b57\\u0b62\\u0b63\\u0b82\\u0bbe\\u0bc0\\u0bcd\\u0bd7\\u0c3e-\\u0c40\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0cbc\\u0cbf\\u0cc2\\u0cc6\\u0ccc\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0d3e\\u0d41-\\u0d44\\u0d4d\\u0d57\\u0d62\\u0d63\\u0dca\\u0dcf\\u0dd2-\\u0dd4\\u0dd6\\u0ddf\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0eb1\\u0eb4-\\u0eb9\\u0ebb\\u0ebc\\u0ec8-\\u0ecd\\u0f18\\u0f19\\u0f35\\u0f37\\u0f39\\u0f71-\\u0f7e\\u0f80-\\u0f84\\u0f86\\u0f87\\u0f90-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102d-\\u1030\\u1032-\\u1037\\u1039\\u103a\\u103d\\u103e\\u1058\\u1059\\u105e-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108d\\u109d\\u135f\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b7-\\u17bd\\u17c6\\u17c9-\\u17d3\\u17dd\\u180b-\\u180d\\u18a9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193b\\u1a17\\u1a18\\u1a56\\u1a58-\\u1a5e\\u1a60\\u1a62\\u1a65-\\u1a6c\\u1a73-\\u1a7c\\u1a7f\\u1b00-\\u1b03\\u1b34\\u1b36-\\u1b3a\\u1b3c\\u1b42\\u1b6b-\\u1b73\\u1b80\\u1b81\\u1ba2-\\u1ba5\\u1ba8\\u1ba9\\u1c2c-\\u1c33\\u1c36\\u1c37\\u1cd0-\\u1cd2\\u1cd4-\\u1ce0\\u1ce2-\\u1ce8\\u1ced\\u1dc0-\\u1de6\\u1dfd-\\u1dff\\u200c\\u200d\\u20d0-\\u20f0\\u2cef-\\u2cf1\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua66f-\\ua672\\ua67c\\ua67d\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua825\\ua826\\ua8c4\\ua8e0-\\ua8f1\\ua926-\\ua92d\\ua947-\\ua951\\ua980-\\ua982\\ua9b3\\ua9b6-\\ua9b9\\ua9bc\\uaa29-\\uaa2e\\uaa31\\uaa32\\uaa35\\uaa36\\uaa43\\uaa4c\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uabe5\\uabe8\\uabed\\udc00-\\udfff\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe26\\uff9e\\uff9f]/;\r\n  function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }\r\n\r\n  // DOM UTILITIES\r\n\r\n  function elt(tag, content, className, style) {\r\n    var e = document.createElement(tag);\r\n    if (className) e.className = className;\r\n    if (style) e.style.cssText = style;\r\n    if (typeof content == \"string\") e.appendChild(document.createTextNode(content));\r\n    else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);\r\n    return e;\r\n  }\r\n\r\n  var range;\r\n  if (document.createRange) range = function(node, start, end, endNode) {\r\n    var r = document.createRange();\r\n    r.setEnd(endNode || node, end);\r\n    r.setStart(node, start);\r\n    return r;\r\n  };\r\n  else range = function(node, start, end) {\r\n    var r = document.body.createTextRange();\r\n    try { r.moveToElementText(node.parentNode); }\r\n    catch(e) { return r; }\r\n    r.collapse(true);\r\n    r.moveEnd(\"character\", end);\r\n    r.moveStart(\"character\", start);\r\n    return r;\r\n  };\r\n\r\n  function removeChildren(e) {\r\n    for (var count = e.childNodes.length; count > 0; --count)\r\n      e.removeChild(e.firstChild);\r\n    return e;\r\n  }\r\n\r\n  function removeChildrenAndAdd(parent, e) {\r\n    return removeChildren(parent).appendChild(e);\r\n  }\r\n\r\n  var contains = CodeMirror.contains = function(parent, child) {\r\n    if (child.nodeType == 3) // Android browser always returns false when child is a textnode\r\n      child = child.parentNode;\r\n    if (parent.contains)\r\n      return parent.contains(child);\r\n    do {\r\n      if (child.nodeType == 11) child = child.host;\r\n      if (child == parent) return true;\r\n    } while (child = child.parentNode);\r\n  };\r\n\r\n  function activeElt() {\r\n    var activeElement = document.activeElement;\r\n    while (activeElement && activeElement.root && activeElement.root.activeElement)\r\n      activeElement = activeElement.root.activeElement;\r\n    return activeElement;\r\n  }\r\n  // Older versions of IE throws unspecified error when touching\r\n  // document.activeElement in some cases (during loading, in iframe)\r\n  if (ie && ie_version < 11) activeElt = function() {\r\n    try { return document.activeElement; }\r\n    catch(e) { return document.body; }\r\n  };\r\n\r\n  function classTest(cls) { return new RegExp(\"(^|\\\\s)\" + cls + \"(?:$|\\\\s)\\\\s*\"); }\r\n  var rmClass = CodeMirror.rmClass = function(node, cls) {\r\n    var current = node.className;\r\n    var match = classTest(cls).exec(current);\r\n    if (match) {\r\n      var after = current.slice(match.index + match[0].length);\r\n      node.className = current.slice(0, match.index) + (after ? match[1] + after : \"\");\r\n    }\r\n  };\r\n  var addClass = CodeMirror.addClass = function(node, cls) {\r\n    var current = node.className;\r\n    if (!classTest(cls).test(current)) node.className += (current ? \" \" : \"\") + cls;\r\n  };\r\n  function joinClasses(a, b) {\r\n    var as = a.split(\" \");\r\n    for (var i = 0; i < as.length; i++)\r\n      if (as[i] && !classTest(as[i]).test(b)) b += \" \" + as[i];\r\n    return b;\r\n  }\r\n\r\n  // WINDOW-WIDE EVENTS\r\n\r\n  // These must be handled carefully, because naively registering a\r\n  // handler for each editor will cause the editors to never be\r\n  // garbage collected.\r\n\r\n  function forEachCodeMirror(f) {\r\n    if (!document.body.getElementsByClassName) return;\r\n    var byClass = document.body.getElementsByClassName(\"CodeMirror\");\r\n    for (var i = 0; i < byClass.length; i++) {\r\n      var cm = byClass[i].CodeMirror;\r\n      if (cm) f(cm);\r\n    }\r\n  }\r\n\r\n  var globalsRegistered = false;\r\n  function ensureGlobalHandlers() {\r\n    if (globalsRegistered) return;\r\n    registerGlobalHandlers();\r\n    globalsRegistered = true;\r\n  }\r\n  function registerGlobalHandlers() {\r\n    // When the window resizes, we need to refresh active editors.\r\n    var resizeTimer;\r\n    on(window, \"resize\", function() {\r\n      if (resizeTimer == null) resizeTimer = setTimeout(function() {\r\n        resizeTimer = null;\r\n        forEachCodeMirror(onResize);\r\n      }, 100);\r\n    });\r\n    // When the window loses focus, we want to show the editor as blurred\r\n    on(window, \"blur\", function() {\r\n      forEachCodeMirror(onBlur);\r\n    });\r\n  }\r\n\r\n  // FEATURE DETECTION\r\n\r\n  // Detect drag-and-drop\r\n  var dragAndDrop = function() {\r\n    // There is *some* kind of drag-and-drop support in IE6-8, but I\r\n    // couldn't get it to work yet.\r\n    if (ie && ie_version < 9) return false;\r\n    var div = elt('div');\r\n    return \"draggable\" in div || \"dragDrop\" in div;\r\n  }();\r\n\r\n  var zwspSupported;\r\n  function zeroWidthElement(measure) {\r\n    if (zwspSupported == null) {\r\n      var test = elt(\"span\", \"\\u200b\");\r\n      removeChildrenAndAdd(measure, elt(\"span\", [test, document.createTextNode(\"x\")]));\r\n      if (measure.firstChild.offsetHeight != 0)\r\n        zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);\r\n    }\r\n    var node = zwspSupported ? elt(\"span\", \"\\u200b\") :\r\n      elt(\"span\", \"\\u00a0\", null, \"display: inline-block; width: 1px; margin-right: -1px\");\r\n    node.setAttribute(\"cm-text\", \"\");\r\n    return node;\r\n  }\r\n\r\n  // Feature-detect IE's crummy client rect reporting for bidi text\r\n  var badBidiRects;\r\n  function hasBadBidiRects(measure) {\r\n    if (badBidiRects != null) return badBidiRects;\r\n    var txt = removeChildrenAndAdd(measure, document.createTextNode(\"A\\u062eA\"));\r\n    var r0 = range(txt, 0, 1).getBoundingClientRect();\r\n    if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)\r\n    var r1 = range(txt, 1, 2).getBoundingClientRect();\r\n    return badBidiRects = (r1.right - r0.right < 3);\r\n  }\r\n\r\n  // See if \"\".split is the broken IE version, if so, provide an\r\n  // alternative way to split lines.\r\n  var splitLinesAuto = CodeMirror.splitLines = \"\\n\\nb\".split(/\\n/).length != 3 ? function(string) {\r\n    var pos = 0, result = [], l = string.length;\r\n    while (pos <= l) {\r\n      var nl = string.indexOf(\"\\n\", pos);\r\n      if (nl == -1) nl = string.length;\r\n      var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl);\r\n      var rt = line.indexOf(\"\\r\");\r\n      if (rt != -1) {\r\n        result.push(line.slice(0, rt));\r\n        pos += rt + 1;\r\n      } else {\r\n        result.push(line);\r\n        pos = nl + 1;\r\n      }\r\n    }\r\n    return result;\r\n  } : function(string){return string.split(/\\r\\n?|\\n/);};\r\n\r\n  var hasSelection = window.getSelection ? function(te) {\r\n    try { return te.selectionStart != te.selectionEnd; }\r\n    catch(e) { return false; }\r\n  } : function(te) {\r\n    try {var range = te.ownerDocument.selection.createRange();}\r\n    catch(e) {}\r\n    if (!range || range.parentElement() != te) return false;\r\n    return range.compareEndPoints(\"StartToEnd\", range) != 0;\r\n  };\r\n\r\n  var hasCopyEvent = (function() {\r\n    var e = elt(\"div\");\r\n    if (\"oncopy\" in e) return true;\r\n    e.setAttribute(\"oncopy\", \"return;\");\r\n    return typeof e.oncopy == \"function\";\r\n  })();\r\n\r\n  var badZoomedRects = null;\r\n  function hasBadZoomedRects(measure) {\r\n    if (badZoomedRects != null) return badZoomedRects;\r\n    var node = removeChildrenAndAdd(measure, elt(\"span\", \"x\"));\r\n    var normal = node.getBoundingClientRect();\r\n    var fromRange = range(node, 0, 1).getBoundingClientRect();\r\n    return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;\r\n  }\r\n\r\n  // KEY NAMES\r\n\r\n  var keyNames = CodeMirror.keyNames = {\r\n    3: \"Enter\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\r\n    19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\r\n    36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\r\n    46: \"Delete\", 59: \";\", 61: \"=\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\",\r\n    106: \"*\", 107: \"=\", 109: \"-\", 110: \".\", 111: \"/\", 127: \"Delete\",\r\n    173: \"-\", 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\r\n    221: \"]\", 222: \"'\", 63232: \"Up\", 63233: \"Down\", 63234: \"Left\", 63235: \"Right\", 63272: \"Delete\",\r\n    63273: \"Home\", 63275: \"End\", 63276: \"PageUp\", 63277: \"PageDown\", 63302: \"Insert\"\r\n  };\r\n  (function() {\r\n    // Number keys\r\n    for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);\r\n    // Alphabetic keys\r\n    for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);\r\n    // Function keys\r\n    for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = \"F\" + i;\r\n  })();\r\n\r\n  // BIDI HELPERS\r\n\r\n  function iterateBidiSections(order, from, to, f) {\r\n    if (!order) return f(from, to, \"ltr\");\r\n    var found = false;\r\n    for (var i = 0; i < order.length; ++i) {\r\n      var part = order[i];\r\n      if (part.from < to && part.to > from || from == to && part.to == from) {\r\n        f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\");\r\n        found = true;\r\n      }\r\n    }\r\n    if (!found) f(from, to, \"ltr\");\r\n  }\r\n\r\n  function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }\r\n  function bidiRight(part) { return part.level % 2 ? part.from : part.to; }\r\n\r\n  function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }\r\n  function lineRight(line) {\r\n    var order = getOrder(line);\r\n    if (!order) return line.text.length;\r\n    return bidiRight(lst(order));\r\n  }\r\n\r\n  function lineStart(cm, lineN) {\r\n    var line = getLine(cm.doc, lineN);\r\n    var visual = visualLine(line);\r\n    if (visual != line) lineN = lineNo(visual);\r\n    var order = getOrder(visual);\r\n    var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);\r\n    return Pos(lineN, ch);\r\n  }\r\n  function lineEnd(cm, lineN) {\r\n    var merged, line = getLine(cm.doc, lineN);\r\n    while (merged = collapsedSpanAtEnd(line)) {\r\n      line = merged.find(1, true).line;\r\n      lineN = null;\r\n    }\r\n    var order = getOrder(line);\r\n    var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);\r\n    return Pos(lineN == null ? lineNo(line) : lineN, ch);\r\n  }\r\n  function lineStartSmart(cm, pos) {\r\n    var start = lineStart(cm, pos.line);\r\n    var line = getLine(cm.doc, start.line);\r\n    var order = getOrder(line);\r\n    if (!order || order[0].level == 0) {\r\n      var firstNonWS = Math.max(0, line.text.search(/\\S/));\r\n      var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;\r\n      return Pos(start.line, inWS ? 0 : firstNonWS);\r\n    }\r\n    return start;\r\n  }\r\n\r\n  function compareBidiLevel(order, a, b) {\r\n    var linedir = order[0].level;\r\n    if (a == linedir) return true;\r\n    if (b == linedir) return false;\r\n    return a < b;\r\n  }\r\n  var bidiOther;\r\n  function getBidiPartAt(order, pos) {\r\n    bidiOther = null;\r\n    for (var i = 0, found; i < order.length; ++i) {\r\n      var cur = order[i];\r\n      if (cur.from < pos && cur.to > pos) return i;\r\n      if ((cur.from == pos || cur.to == pos)) {\r\n        if (found == null) {\r\n          found = i;\r\n        } else if (compareBidiLevel(order, cur.level, order[found].level)) {\r\n          if (cur.from != cur.to) bidiOther = found;\r\n          return i;\r\n        } else {\r\n          if (cur.from != cur.to) bidiOther = i;\r\n          return found;\r\n        }\r\n      }\r\n    }\r\n    return found;\r\n  }\r\n\r\n  function moveInLine(line, pos, dir, byUnit) {\r\n    if (!byUnit) return pos + dir;\r\n    do pos += dir;\r\n    while (pos > 0 && isExtendingChar(line.text.charAt(pos)));\r\n    return pos;\r\n  }\r\n\r\n  // This is needed in order to move 'visually' through bi-directional\r\n  // text -- i.e., pressing left should make the cursor go left, even\r\n  // when in RTL text. The tricky part is the 'jumps', where RTL and\r\n  // LTR text touch each other. This often requires the cursor offset\r\n  // to move more than one unit, in order to visually move one unit.\r\n  function moveVisually(line, start, dir, byUnit) {\r\n    var bidi = getOrder(line);\r\n    if (!bidi) return moveLogically(line, start, dir, byUnit);\r\n    var pos = getBidiPartAt(bidi, start), part = bidi[pos];\r\n    var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);\r\n\r\n    for (;;) {\r\n      if (target > part.from && target < part.to) return target;\r\n      if (target == part.from || target == part.to) {\r\n        if (getBidiPartAt(bidi, target) == pos) return target;\r\n        part = bidi[pos += dir];\r\n        return (dir > 0) == part.level % 2 ? part.to : part.from;\r\n      } else {\r\n        part = bidi[pos += dir];\r\n        if (!part) return null;\r\n        if ((dir > 0) == part.level % 2)\r\n          target = moveInLine(line, part.to, -1, byUnit);\r\n        else\r\n          target = moveInLine(line, part.from, 1, byUnit);\r\n      }\r\n    }\r\n  }\r\n\r\n  function moveLogically(line, start, dir, byUnit) {\r\n    var target = start + dir;\r\n    if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;\r\n    return target < 0 || target > line.text.length ? null : target;\r\n  }\r\n\r\n  // Bidirectional ordering algorithm\r\n  // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\r\n  // that this (partially) implements.\r\n\r\n  // One-char codes used for character types:\r\n  // L (L):   Left-to-Right\r\n  // R (R):   Right-to-Left\r\n  // r (AL):  Right-to-Left Arabic\r\n  // 1 (EN):  European Number\r\n  // + (ES):  European Number Separator\r\n  // % (ET):  European Number Terminator\r\n  // n (AN):  Arabic Number\r\n  // , (CS):  Common Number Separator\r\n  // m (NSM): Non-Spacing Mark\r\n  // b (BN):  Boundary Neutral\r\n  // s (B):   Paragraph Separator\r\n  // t (S):   Segment Separator\r\n  // w (WS):  Whitespace\r\n  // N (ON):  Other Neutrals\r\n\r\n  // Returns null if characters are ordered as they appear\r\n  // (left-to-right), or an array of sections ({from, to, level}\r\n  // objects) in the order in which they occur visually.\r\n  var bidiOrdering = (function() {\r\n    // Character types for codepoints 0 to 0xff\r\n    var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN\";\r\n    // Character types for codepoints 0x600 to 0x6ff\r\n    var arabicTypes = \"rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm\";\r\n    function charType(code) {\r\n      if (code <= 0xf7) return lowTypes.charAt(code);\r\n      else if (0x590 <= code && code <= 0x5f4) return \"R\";\r\n      else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);\r\n      else if (0x6ee <= code && code <= 0x8ac) return \"r\";\r\n      else if (0x2000 <= code && code <= 0x200b) return \"w\";\r\n      else if (code == 0x200c) return \"b\";\r\n      else return \"L\";\r\n    }\r\n\r\n    var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/;\r\n    var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;\r\n    // Browsers seem to always treat the boundaries of block elements as being L.\r\n    var outerType = \"L\";\r\n\r\n    function BidiSpan(level, from, to) {\r\n      this.level = level;\r\n      this.from = from; this.to = to;\r\n    }\r\n\r\n    return function(str) {\r\n      if (!bidiRE.test(str)) return false;\r\n      var len = str.length, types = [];\r\n      for (var i = 0, type; i < len; ++i)\r\n        types.push(type = charType(str.charCodeAt(i)));\r\n\r\n      // W1. Examine each non-spacing mark (NSM) in the level run, and\r\n      // change the type of the NSM to the type of the previous\r\n      // character. If the NSM is at the start of the level run, it will\r\n      // get the type of sor.\r\n      for (var i = 0, prev = outerType; i < len; ++i) {\r\n        var type = types[i];\r\n        if (type == \"m\") types[i] = prev;\r\n        else prev = type;\r\n      }\r\n\r\n      // W2. Search backwards from each instance of a European number\r\n      // until the first strong type (R, L, AL, or sor) is found. If an\r\n      // AL is found, change the type of the European number to Arabic\r\n      // number.\r\n      // W3. Change all ALs to R.\r\n      for (var i = 0, cur = outerType; i < len; ++i) {\r\n        var type = types[i];\r\n        if (type == \"1\" && cur == \"r\") types[i] = \"n\";\r\n        else if (isStrong.test(type)) { cur = type; if (type == \"r\") types[i] = \"R\"; }\r\n      }\r\n\r\n      // W4. A single European separator between two European numbers\r\n      // changes to a European number. A single common separator between\r\n      // two numbers of the same type changes to that type.\r\n      for (var i = 1, prev = types[0]; i < len - 1; ++i) {\r\n        var type = types[i];\r\n        if (type == \"+\" && prev == \"1\" && types[i+1] == \"1\") types[i] = \"1\";\r\n        else if (type == \",\" && prev == types[i+1] &&\r\n                 (prev == \"1\" || prev == \"n\")) types[i] = prev;\r\n        prev = type;\r\n      }\r\n\r\n      // W5. A sequence of European terminators adjacent to European\r\n      // numbers changes to all European numbers.\r\n      // W6. Otherwise, separators and terminators change to Other\r\n      // Neutral.\r\n      for (var i = 0; i < len; ++i) {\r\n        var type = types[i];\r\n        if (type == \",\") types[i] = \"N\";\r\n        else if (type == \"%\") {\r\n          for (var end = i + 1; end < len && types[end] == \"%\"; ++end) {}\r\n          var replace = (i && types[i-1] == \"!\") || (end < len && types[end] == \"1\") ? \"1\" : \"N\";\r\n          for (var j = i; j < end; ++j) types[j] = replace;\r\n          i = end - 1;\r\n        }\r\n      }\r\n\r\n      // W7. Search backwards from each instance of a European number\r\n      // until the first strong type (R, L, or sor) is found. If an L is\r\n      // found, then change the type of the European number to L.\r\n      for (var i = 0, cur = outerType; i < len; ++i) {\r\n        var type = types[i];\r\n        if (cur == \"L\" && type == \"1\") types[i] = \"L\";\r\n        else if (isStrong.test(type)) cur = type;\r\n      }\r\n\r\n      // N1. A sequence of neutrals takes the direction of the\r\n      // surrounding strong text if the text on both sides has the same\r\n      // direction. European and Arabic numbers act as if they were R in\r\n      // terms of their influence on neutrals. Start-of-level-run (sor)\r\n      // and end-of-level-run (eor) are used at level run boundaries.\r\n      // N2. Any remaining neutrals take the embedding direction.\r\n      for (var i = 0; i < len; ++i) {\r\n        if (isNeutral.test(types[i])) {\r\n          for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}\r\n          var before = (i ? types[i-1] : outerType) == \"L\";\r\n          var after = (end < len ? types[end] : outerType) == \"L\";\r\n          var replace = before || after ? \"L\" : \"R\";\r\n          for (var j = i; j < end; ++j) types[j] = replace;\r\n          i = end - 1;\r\n        }\r\n      }\r\n\r\n      // Here we depart from the documented algorithm, in order to avoid\r\n      // building up an actual levels array. Since there are only three\r\n      // levels (0, 1, 2) in an implementation that doesn't take\r\n      // explicit embedding into account, we can build up the order on\r\n      // the fly, without following the level-based algorithm.\r\n      var order = [], m;\r\n      for (var i = 0; i < len;) {\r\n        if (countsAsLeft.test(types[i])) {\r\n          var start = i;\r\n          for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}\r\n          order.push(new BidiSpan(0, start, i));\r\n        } else {\r\n          var pos = i, at = order.length;\r\n          for (++i; i < len && types[i] != \"L\"; ++i) {}\r\n          for (var j = pos; j < i;) {\r\n            if (countsAsNum.test(types[j])) {\r\n              if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));\r\n              var nstart = j;\r\n              for (++j; j < i && countsAsNum.test(types[j]); ++j) {}\r\n              order.splice(at, 0, new BidiSpan(2, nstart, j));\r\n              pos = j;\r\n            } else ++j;\r\n          }\r\n          if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));\r\n        }\r\n      }\r\n      if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\r\n        order[0].from = m[0].length;\r\n        order.unshift(new BidiSpan(0, 0, m[0].length));\r\n      }\r\n      if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\r\n        lst(order).to -= m[0].length;\r\n        order.push(new BidiSpan(0, len - m[0].length, len));\r\n      }\r\n      if (order[0].level == 2)\r\n        order.unshift(new BidiSpan(1, order[0].to, order[0].to));\r\n      if (order[0].level != lst(order).level)\r\n        order.push(new BidiSpan(order[0].level, len, len));\r\n\r\n      return order;\r\n    };\r\n  })();\r\n\r\n  // THE END\r\n\r\n  CodeMirror.version = \"5.7.1\";\r\n\r\n  return CodeMirror;\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../../lib/codemirror\"), require(\"../markdown/markdown\"), require(\"../../addon/mode/overlay\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../../lib/codemirror\", \"../markdown/markdown\", \"../../addon/mode/overlay\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n\"use strict\";\r\n\r\nvar urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\\.beep|\\.lwz|\\.xpc|\\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\\.beeps?|xmpp|xri|ymsgr|z39\\.50[rs]?):(?:\\/{1,3}|[a-z0-9%])|www\\d{0,3}[.]|[a-z0-9.\\-]+[.][a-z]{2,4}\\/)(?:[^\\s()<>]|\\([^\\s()<>]*\\))+(?:\\([^\\s()<>]*\\)|[^\\s`*!()\\[\\]{};:'\".,<>?«»“”‘’]))/i\r\n\r\nCodeMirror.defineMode(\"gfm\", function(config, modeConfig) {\r\n  var codeDepth = 0;\r\n  function blankLine(state) {\r\n    state.code = false;\r\n    return null;\r\n  }\r\n  var gfmOverlay = {\r\n    startState: function() {\r\n      return {\r\n        code: false,\r\n        codeBlock: false,\r\n        ateSpace: false\r\n      };\r\n    },\r\n    copyState: function(s) {\r\n      return {\r\n        code: s.code,\r\n        codeBlock: s.codeBlock,\r\n        ateSpace: s.ateSpace\r\n      };\r\n    },\r\n    token: function(stream, state) {\r\n      state.combineTokens = null;\r\n\r\n      // Hack to prevent formatting override inside code blocks (block and inline)\r\n      if (state.codeBlock) {\r\n        if (stream.match(/^```+/)) {\r\n          state.codeBlock = false;\r\n          return null;\r\n        }\r\n        stream.skipToEnd();\r\n        return null;\r\n      }\r\n      if (stream.sol()) {\r\n        state.code = false;\r\n      }\r\n      if (stream.sol() && stream.match(/^```+/)) {\r\n        stream.skipToEnd();\r\n        state.codeBlock = true;\r\n        return null;\r\n      }\r\n      // If this block is changed, it may need to be updated in Markdown mode\r\n      if (stream.peek() === '`') {\r\n        stream.next();\r\n        var before = stream.pos;\r\n        stream.eatWhile('`');\r\n        var difference = 1 + stream.pos - before;\r\n        if (!state.code) {\r\n          codeDepth = difference;\r\n          state.code = true;\r\n        } else {\r\n          if (difference === codeDepth) { // Must be exact\r\n            state.code = false;\r\n          }\r\n        }\r\n        return null;\r\n      } else if (state.code) {\r\n        stream.next();\r\n        return null;\r\n      }\r\n      // Check if space. If so, links can be formatted later on\r\n      if (stream.eatSpace()) {\r\n        state.ateSpace = true;\r\n        return null;\r\n      }\r\n      if (stream.sol() || state.ateSpace) {\r\n        state.ateSpace = false;\r\n        if (modeConfig.gitHubSpice !== false) {\r\n          if(stream.match(/^(?:[a-zA-Z0-9\\-_]+\\/)?(?:[a-zA-Z0-9\\-_]+@)?(?:[a-f0-9]{7,40}\\b)/)) {\r\n            // User/Project@SHA\r\n            // User@SHA\r\n            // SHA\r\n            state.combineTokens = true;\r\n            return \"link\";\r\n          } else if (stream.match(/^(?:[a-zA-Z0-9\\-_]+\\/)?(?:[a-zA-Z0-9\\-_]+)?#[0-9]+\\b/)) {\r\n            // User/Project#Num\r\n            // User#Num\r\n            // #Num\r\n            state.combineTokens = true;\r\n            return \"link\";\r\n          }\r\n        }\r\n      }\r\n      if (stream.match(urlRE) &&\r\n          stream.string.slice(stream.start - 2, stream.start) != \"](\" &&\r\n          (stream.start == 0 || /\\W/.test(stream.string.charAt(stream.start - 1)))) {\r\n        // URLs\r\n        // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls\r\n        // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine\r\n        // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL\r\n        state.combineTokens = true;\r\n        return \"link\";\r\n      }\r\n      stream.next();\r\n      return null;\r\n    },\r\n    blankLine: blankLine\r\n  };\r\n\r\n  var markdownConfig = {\r\n    underscoresBreakWords: false,\r\n    taskLists: true,\r\n    fencedCodeBlocks: '```',\r\n    strikethrough: true\r\n  };\r\n  for (var attr in modeConfig) {\r\n    markdownConfig[attr] = modeConfig[attr];\r\n  }\r\n  markdownConfig.name = \"markdown\";\r\n  return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);\r\n\r\n}, \"markdown\");\r\n\r\n  CodeMirror.defineMIME(\"text/x-gfm\", \"gfm\");\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../../lib/codemirror\"), require(\"../xml/xml\"), require(\"../meta\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../../lib/codemirror\", \"../xml/xml\", \"../meta\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n\"use strict\";\r\n\r\nCodeMirror.defineMode(\"markdown\", function(cmCfg, modeCfg) {\r\n\r\n  var htmlFound = CodeMirror.modes.hasOwnProperty(\"xml\");\r\n  var htmlMode = CodeMirror.getMode(cmCfg, htmlFound ? {name: \"xml\", htmlMode: true} : \"text/plain\");\r\n\r\n  function getMode(name) {\r\n    if (CodeMirror.findModeByName) {\r\n      var found = CodeMirror.findModeByName(name);\r\n      if (found) name = found.mime || found.mimes[0];\r\n    }\r\n    var mode = CodeMirror.getMode(cmCfg, name);\r\n    return mode.name == \"null\" ? null : mode;\r\n  }\r\n\r\n  // Should characters that affect highlighting be highlighted separate?\r\n  // Does not include characters that will be output (such as `1.` and `-` for lists)\r\n  if (modeCfg.highlightFormatting === undefined)\r\n    modeCfg.highlightFormatting = false;\r\n\r\n  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.\r\n  // Excess `>` will emit `error` token.\r\n  if (modeCfg.maxBlockquoteDepth === undefined)\r\n    modeCfg.maxBlockquoteDepth = 0;\r\n\r\n  // Should underscores in words open/close em/strong?\r\n  if (modeCfg.underscoresBreakWords === undefined)\r\n    modeCfg.underscoresBreakWords = true;\r\n\r\n  // Use `fencedCodeBlocks` to configure fenced code blocks. false to\r\n  // disable, string to specify a precise regexp that the fence should\r\n  // match, and true to allow three or more backticks or tildes (as\r\n  // per CommonMark).\r\n\r\n  // Turn on task lists? (\"- [ ] \" and \"- [x] \")\r\n  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;\r\n\r\n  // Turn on strikethrough syntax\r\n  if (modeCfg.strikethrough === undefined)\r\n    modeCfg.strikethrough = false;\r\n\r\n  var codeDepth = 0;\r\n\r\n  var header   = 'header'\r\n  ,   code     = 'comment'\r\n  ,   quote    = 'quote'\r\n  ,   list1    = 'variable-2'\r\n  ,   list2    = 'variable-3'\r\n  ,   list3    = 'keyword'\r\n  ,   hr       = 'hr'\r\n  ,   image    = 'tag'\r\n  ,   formatting = 'formatting'\r\n  ,   linkinline = 'link'\r\n  ,   linkemail = 'link'\r\n  ,   linktext = 'link'\r\n  ,   linkhref = 'string'\r\n  ,   em       = 'em'\r\n  ,   strong   = 'strong'\r\n  ,   strikethrough = 'strikethrough';\r\n\r\n  var hrRE = /^([*\\-_])(?:\\s*\\1){2,}\\s*$/\r\n  ,   ulRE = /^[*\\-+]\\s+/\r\n  ,   olRE = /^[0-9]+([.)])\\s+/\r\n  ,   taskListRE = /^\\[(x| )\\](?=\\s)/ // Must follow ulRE or olRE\r\n  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/\r\n  ,   setextHeaderRE = /^ *(?:\\={1,}|-{1,})\\s*$/\r\n  ,   textRE = /^[^#!\\[\\]*_\\\\<>` \"'(~]+/\r\n  ,   fencedCodeRE = new RegExp(\"^(\" + (modeCfg.fencedCodeBlocks === true ? \"~~~+|```+\" : modeCfg.fencedCodeBlocks) +\r\n                                \")[ \\\\t]*([\\\\w+#]*)\");\r\n\r\n  function switchInline(stream, state, f) {\r\n    state.f = state.inline = f;\r\n    return f(stream, state);\r\n  }\r\n\r\n  function switchBlock(stream, state, f) {\r\n    state.f = state.block = f;\r\n    return f(stream, state);\r\n  }\r\n\r\n  function lineIsEmpty(line) {\r\n    return !line || !/\\S/.test(line.string)\r\n  }\r\n\r\n  // Blocks\r\n\r\n  function blankLine(state) {\r\n    // Reset linkTitle state\r\n    state.linkTitle = false;\r\n    // Reset EM state\r\n    state.em = false;\r\n    // Reset STRONG state\r\n    state.strong = false;\r\n    // Reset strikethrough state\r\n    state.strikethrough = false;\r\n    // Reset state.quote\r\n    state.quote = 0;\r\n    // Reset state.indentedCode\r\n    state.indentedCode = false;\r\n    if (!htmlFound && state.f == htmlBlock) {\r\n      state.f = inlineNormal;\r\n      state.block = blockNormal;\r\n    }\r\n    // Reset state.trailingSpace\r\n    state.trailingSpace = 0;\r\n    state.trailingSpaceNewLine = false;\r\n    // Mark this line as blank\r\n    state.prevLine = state.thisLine\r\n    state.thisLine = null\r\n    return null;\r\n  }\r\n\r\n  function blockNormal(stream, state) {\r\n\r\n    var sol = stream.sol();\r\n\r\n    var prevLineIsList = state.list !== false,\r\n        prevLineIsIndentedCode = state.indentedCode;\r\n\r\n    state.indentedCode = false;\r\n\r\n    if (prevLineIsList) {\r\n      if (state.indentationDiff >= 0) { // Continued list\r\n        if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block\r\n          state.indentation -= state.indentationDiff;\r\n        }\r\n        state.list = null;\r\n      } else if (state.indentation > 0) {\r\n        state.list = null;\r\n        state.listDepth = Math.floor(state.indentation / 4);\r\n      } else { // No longer a list\r\n        state.list = false;\r\n        state.listDepth = 0;\r\n      }\r\n    }\r\n\r\n    var match = null;\r\n    if (state.indentationDiff >= 4) {\r\n      stream.skipToEnd();\r\n      if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {\r\n        state.indentation -= 4;\r\n        state.indentedCode = true;\r\n        return code;\r\n      } else {\r\n        return null;\r\n      }\r\n    } else if (stream.eatSpace()) {\r\n      return null;\r\n    } else if ((match = stream.match(atxHeaderRE)) && match[1].length <= 6) {\r\n      state.header = match[1].length;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\r\n      state.f = state.inline;\r\n      return getType(state);\r\n    } else if (!lineIsEmpty(state.prevLine) && !state.quote && !prevLineIsList &&\r\n               !prevLineIsIndentedCode && (match = stream.match(setextHeaderRE))) {\r\n      state.header = match[0].charAt(0) == '=' ? 1 : 2;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\r\n      state.f = state.inline;\r\n      return getType(state);\r\n    } else if (stream.eat('>')) {\r\n      state.quote = sol ? 1 : state.quote + 1;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"quote\";\r\n      stream.eatSpace();\r\n      return getType(state);\r\n    } else if (stream.peek() === '[') {\r\n      return switchInline(stream, state, footnoteLink);\r\n    } else if (stream.match(hrRE, true)) {\r\n      state.hr = true;\r\n      return hr;\r\n    } else if ((lineIsEmpty(state.prevLine) || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) {\r\n      var listType = null;\r\n      if (stream.match(ulRE, true)) {\r\n        listType = 'ul';\r\n      } else {\r\n        stream.match(olRE, true);\r\n        listType = 'ol';\r\n      }\r\n      state.indentation = stream.column() + stream.current().length;\r\n      state.list = true;\r\n      state.listDepth++;\r\n      if (modeCfg.taskLists && stream.match(taskListRE, false)) {\r\n        state.taskList = true;\r\n      }\r\n      state.f = state.inline;\r\n      if (modeCfg.highlightFormatting) state.formatting = [\"list\", \"list-\" + listType];\r\n      return getType(state);\r\n    } else if (modeCfg.fencedCodeBlocks && (match = stream.match(fencedCodeRE, true))) {\r\n      state.fencedChars = match[1]\r\n      // try switching mode\r\n      state.localMode = getMode(match[2]);\r\n      if (state.localMode) state.localState = state.localMode.startState();\r\n      state.f = state.block = local;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\r\n      state.code = true;\r\n      return getType(state);\r\n    }\r\n\r\n    return switchInline(stream, state, state.inline);\r\n  }\r\n\r\n  function htmlBlock(stream, state) {\r\n    var style = htmlMode.token(stream, state.htmlState);\r\n    if ((htmlFound && state.htmlState.tagStart === null &&\r\n         (!state.htmlState.context && state.htmlState.tokenize.isInText)) ||\r\n        (state.md_inside && stream.current().indexOf(\">\") > -1)) {\r\n      state.f = inlineNormal;\r\n      state.block = blockNormal;\r\n      state.htmlState = null;\r\n    }\r\n    return style;\r\n  }\r\n\r\n  function local(stream, state) {\r\n    if (stream.sol() && state.fencedChars && stream.match(state.fencedChars, false)) {\r\n      state.localMode = state.localState = null;\r\n      state.f = state.block = leavingLocal;\r\n      return null;\r\n    } else if (state.localMode) {\r\n      return state.localMode.token(stream, state.localState);\r\n    } else {\r\n      stream.skipToEnd();\r\n      return code;\r\n    }\r\n  }\r\n\r\n  function leavingLocal(stream, state) {\r\n    stream.match(state.fencedChars);\r\n    state.block = blockNormal;\r\n    state.f = inlineNormal;\r\n    state.fencedChars = null;\r\n    if (modeCfg.highlightFormatting) state.formatting = \"code-block\";\r\n    state.code = true;\r\n    var returnType = getType(state);\r\n    state.code = false;\r\n    return returnType;\r\n  }\r\n\r\n  // Inline\r\n  function getType(state) {\r\n    var styles = [];\r\n\r\n    if (state.formatting) {\r\n      styles.push(formatting);\r\n\r\n      if (typeof state.formatting === \"string\") state.formatting = [state.formatting];\r\n\r\n      for (var i = 0; i < state.formatting.length; i++) {\r\n        styles.push(formatting + \"-\" + state.formatting[i]);\r\n\r\n        if (state.formatting[i] === \"header\") {\r\n          styles.push(formatting + \"-\" + state.formatting[i] + \"-\" + state.header);\r\n        }\r\n\r\n        // Add `formatting-quote` and `formatting-quote-#` for blockquotes\r\n        // Add `error` instead if the maximum blockquote nesting depth is passed\r\n        if (state.formatting[i] === \"quote\") {\r\n          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\r\n            styles.push(formatting + \"-\" + state.formatting[i] + \"-\" + state.quote);\r\n          } else {\r\n            styles.push(\"error\");\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    if (state.taskOpen) {\r\n      styles.push(\"meta\");\r\n      return styles.length ? styles.join(' ') : null;\r\n    }\r\n    if (state.taskClosed) {\r\n      styles.push(\"property\");\r\n      return styles.length ? styles.join(' ') : null;\r\n    }\r\n\r\n    if (state.linkHref) {\r\n      styles.push(linkhref, \"url\");\r\n    } else { // Only apply inline styles to non-url text\r\n      if (state.strong) { styles.push(strong); }\r\n      if (state.em) { styles.push(em); }\r\n      if (state.strikethrough) { styles.push(strikethrough); }\r\n\r\n      if (state.linkText) { styles.push(linktext); }\r\n\r\n      if (state.code) { styles.push(code); }\r\n    }\r\n\r\n    if (state.header) { styles.push(header); styles.push(header + \"-\" + state.header); }\r\n\r\n    if (state.quote) {\r\n      styles.push(quote);\r\n\r\n      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth\r\n      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {\r\n        styles.push(quote + \"-\" + state.quote);\r\n      } else {\r\n        styles.push(quote + \"-\" + modeCfg.maxBlockquoteDepth);\r\n      }\r\n    }\r\n\r\n    if (state.list !== false) {\r\n      var listMod = (state.listDepth - 1) % 3;\r\n      if (!listMod) {\r\n        styles.push(list1);\r\n      } else if (listMod === 1) {\r\n        styles.push(list2);\r\n      } else {\r\n        styles.push(list3);\r\n      }\r\n    }\r\n\r\n    if (state.trailingSpaceNewLine) {\r\n      styles.push(\"trailing-space-new-line\");\r\n    } else if (state.trailingSpace) {\r\n      styles.push(\"trailing-space-\" + (state.trailingSpace % 2 ? \"a\" : \"b\"));\r\n    }\r\n\r\n    return styles.length ? styles.join(' ') : null;\r\n  }\r\n\r\n  function handleText(stream, state) {\r\n    if (stream.match(textRE, true)) {\r\n      return getType(state);\r\n    }\r\n    return undefined;\r\n  }\r\n\r\n  function inlineNormal(stream, state) {\r\n    var style = state.text(stream, state);\r\n    if (typeof style !== 'undefined')\r\n      return style;\r\n\r\n    if (state.list) { // List marker (*, +, -, 1., etc)\r\n      state.list = null;\r\n      return getType(state);\r\n    }\r\n\r\n    if (state.taskList) {\r\n      var taskOpen = stream.match(taskListRE, true)[1] !== \"x\";\r\n      if (taskOpen) state.taskOpen = true;\r\n      else state.taskClosed = true;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"task\";\r\n      state.taskList = false;\r\n      return getType(state);\r\n    }\r\n\r\n    state.taskOpen = false;\r\n    state.taskClosed = false;\r\n\r\n    if (state.header && stream.match(/^#+$/, true)) {\r\n      if (modeCfg.highlightFormatting) state.formatting = \"header\";\r\n      return getType(state);\r\n    }\r\n\r\n    // Get sol() value now, before character is consumed\r\n    var sol = stream.sol();\r\n\r\n    var ch = stream.next();\r\n\r\n    if (ch === '\\\\') {\r\n      stream.next();\r\n      if (modeCfg.highlightFormatting) {\r\n        var type = getType(state);\r\n        return type ? type + \" formatting-escape\" : \"formatting-escape\";\r\n      }\r\n    }\r\n\r\n    // Matches link titles present on next line\r\n    if (state.linkTitle) {\r\n      state.linkTitle = false;\r\n      var matchCh = ch;\r\n      if (ch === '(') {\r\n        matchCh = ')';\r\n      }\r\n      matchCh = (matchCh+'').replace(/([.?*+^$[\\]\\\\(){}|-])/g, \"\\\\$1\");\r\n      var regex = '^\\\\s*(?:[^' + matchCh + '\\\\\\\\]+|\\\\\\\\\\\\\\\\|\\\\\\\\.)' + matchCh;\r\n      if (stream.match(new RegExp(regex), true)) {\r\n        return linkhref;\r\n      }\r\n    }\r\n\r\n    // If this block is changed, it may need to be updated in GFM mode\r\n    if (ch === '`') {\r\n      var previousFormatting = state.formatting;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"code\";\r\n      var t = getType(state);\r\n      var before = stream.pos;\r\n      stream.eatWhile('`');\r\n      var difference = 1 + stream.pos - before;\r\n      if (!state.code) {\r\n        codeDepth = difference;\r\n        state.code = true;\r\n        return getType(state);\r\n      } else {\r\n        if (difference === codeDepth) { // Must be exact\r\n          state.code = false;\r\n          return t;\r\n        }\r\n        state.formatting = previousFormatting;\r\n        return getType(state);\r\n      }\r\n    } else if (state.code) {\r\n      return getType(state);\r\n    }\r\n\r\n    if (ch === '!' && stream.match(/\\[[^\\]]*\\] ?(?:\\(|\\[)/, false)) {\r\n      stream.match(/\\[[^\\]]*\\]/);\r\n      state.inline = state.f = linkHref;\r\n      return image;\r\n    }\r\n\r\n    if (ch === '[' && stream.match(/.*\\](\\(.*\\)| ?\\[.*\\])/, false)) {\r\n      state.linkText = true;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      return getType(state);\r\n    }\r\n\r\n    if (ch === ']' && state.linkText && stream.match(/\\(.*\\)| ?\\[.*\\]/, false)) {\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      var type = getType(state);\r\n      state.linkText = false;\r\n      state.inline = state.f = linkHref;\r\n      return type;\r\n    }\r\n\r\n    if (ch === '<' && stream.match(/^(https?|ftps?):\\/\\/(?:[^\\\\>]|\\\\.)+>/, false)) {\r\n      state.f = state.inline = linkInline;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      var type = getType(state);\r\n      if (type){\r\n        type += \" \";\r\n      } else {\r\n        type = \"\";\r\n      }\r\n      return type + linkinline;\r\n    }\r\n\r\n    if (ch === '<' && stream.match(/^[^> \\\\]+@(?:[^\\\\>]|\\\\.)+>/, false)) {\r\n      state.f = state.inline = linkInline;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      var type = getType(state);\r\n      if (type){\r\n        type += \" \";\r\n      } else {\r\n        type = \"\";\r\n      }\r\n      return type + linkemail;\r\n    }\r\n\r\n    if (ch === '<' && stream.match(/^(!--|\\w)/, false)) {\r\n      var end = stream.string.indexOf(\">\", stream.pos);\r\n      if (end != -1) {\r\n        var atts = stream.string.substring(stream.start, end);\r\n        if (/markdown\\s*=\\s*('|\"){0,1}1('|\"){0,1}/.test(atts)) state.md_inside = true;\r\n      }\r\n      stream.backUp(1);\r\n      state.htmlState = CodeMirror.startState(htmlMode);\r\n      return switchBlock(stream, state, htmlBlock);\r\n    }\r\n\r\n    if (ch === '<' && stream.match(/^\\/\\w*?>/)) {\r\n      state.md_inside = false;\r\n      return \"tag\";\r\n    }\r\n\r\n    var ignoreUnderscore = false;\r\n    if (!modeCfg.underscoresBreakWords) {\r\n      if (ch === '_' && stream.peek() !== '_' && stream.match(/(\\w)/, false)) {\r\n        var prevPos = stream.pos - 2;\r\n        if (prevPos >= 0) {\r\n          var prevCh = stream.string.charAt(prevPos);\r\n          if (prevCh !== '_' && prevCh.match(/(\\w)/, false)) {\r\n            ignoreUnderscore = true;\r\n          }\r\n        }\r\n      }\r\n    }\r\n    if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {\r\n      if (sol && stream.peek() === ' ') {\r\n        // Do nothing, surrounded by newline and space\r\n      } else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG\r\n        if (modeCfg.highlightFormatting) state.formatting = \"strong\";\r\n        var t = getType(state);\r\n        state.strong = false;\r\n        return t;\r\n      } else if (!state.strong && stream.eat(ch)) { // Add STRONG\r\n        state.strong = ch;\r\n        if (modeCfg.highlightFormatting) state.formatting = \"strong\";\r\n        return getType(state);\r\n      } else if (state.em === ch) { // Remove EM\r\n        if (modeCfg.highlightFormatting) state.formatting = \"em\";\r\n        var t = getType(state);\r\n        state.em = false;\r\n        return t;\r\n      } else if (!state.em) { // Add EM\r\n        state.em = ch;\r\n        if (modeCfg.highlightFormatting) state.formatting = \"em\";\r\n        return getType(state);\r\n      }\r\n    } else if (ch === ' ') {\r\n      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces\r\n        if (stream.peek() === ' ') { // Surrounded by spaces, ignore\r\n          return getType(state);\r\n        } else { // Not surrounded by spaces, back up pointer\r\n          stream.backUp(1);\r\n        }\r\n      }\r\n    }\r\n\r\n    if (modeCfg.strikethrough) {\r\n      if (ch === '~' && stream.eatWhile(ch)) {\r\n        if (state.strikethrough) {// Remove strikethrough\r\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\r\n          var t = getType(state);\r\n          state.strikethrough = false;\r\n          return t;\r\n        } else if (stream.match(/^[^\\s]/, false)) {// Add strikethrough\r\n          state.strikethrough = true;\r\n          if (modeCfg.highlightFormatting) state.formatting = \"strikethrough\";\r\n          return getType(state);\r\n        }\r\n      } else if (ch === ' ') {\r\n        if (stream.match(/^~~/, true)) { // Probably surrounded by space\r\n          if (stream.peek() === ' ') { // Surrounded by spaces, ignore\r\n            return getType(state);\r\n          } else { // Not surrounded by spaces, back up pointer\r\n            stream.backUp(2);\r\n          }\r\n        }\r\n      }\r\n    }\r\n\r\n    if (ch === ' ') {\r\n      if (stream.match(/ +$/, false)) {\r\n        state.trailingSpace++;\r\n      } else if (state.trailingSpace) {\r\n        state.trailingSpaceNewLine = true;\r\n      }\r\n    }\r\n\r\n    return getType(state);\r\n  }\r\n\r\n  function linkInline(stream, state) {\r\n    var ch = stream.next();\r\n\r\n    if (ch === \">\") {\r\n      state.f = state.inline = inlineNormal;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      var type = getType(state);\r\n      if (type){\r\n        type += \" \";\r\n      } else {\r\n        type = \"\";\r\n      }\r\n      return type + linkinline;\r\n    }\r\n\r\n    stream.match(/^[^>]+/, true);\r\n\r\n    return linkinline;\r\n  }\r\n\r\n  function linkHref(stream, state) {\r\n    // Check if space, and return NULL if so (to avoid marking the space)\r\n    if(stream.eatSpace()){\r\n      return null;\r\n    }\r\n    var ch = stream.next();\r\n    if (ch === '(' || ch === '[') {\r\n      state.f = state.inline = getLinkHrefInside(ch === \"(\" ? \")\" : \"]\");\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\r\n      state.linkHref = true;\r\n      return getType(state);\r\n    }\r\n    return 'error';\r\n  }\r\n\r\n  function getLinkHrefInside(endChar) {\r\n    return function(stream, state) {\r\n      var ch = stream.next();\r\n\r\n      if (ch === endChar) {\r\n        state.f = state.inline = inlineNormal;\r\n        if (modeCfg.highlightFormatting) state.formatting = \"link-string\";\r\n        var returnState = getType(state);\r\n        state.linkHref = false;\r\n        return returnState;\r\n      }\r\n\r\n      if (stream.match(inlineRE(endChar), true)) {\r\n        stream.backUp(1);\r\n      }\r\n\r\n      state.linkHref = true;\r\n      return getType(state);\r\n    };\r\n  }\r\n\r\n  function footnoteLink(stream, state) {\r\n    if (stream.match(/^[^\\]]*\\]:/, false)) {\r\n      state.f = footnoteLinkInside;\r\n      stream.next(); // Consume [\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      state.linkText = true;\r\n      return getType(state);\r\n    }\r\n    return switchInline(stream, state, inlineNormal);\r\n  }\r\n\r\n  function footnoteLinkInside(stream, state) {\r\n    if (stream.match(/^\\]:/, true)) {\r\n      state.f = state.inline = footnoteUrl;\r\n      if (modeCfg.highlightFormatting) state.formatting = \"link\";\r\n      var returnType = getType(state);\r\n      state.linkText = false;\r\n      return returnType;\r\n    }\r\n\r\n    stream.match(/^[^\\]]+/, true);\r\n\r\n    return linktext;\r\n  }\r\n\r\n  function footnoteUrl(stream, state) {\r\n    // Check if space, and return NULL if so (to avoid marking the space)\r\n    if(stream.eatSpace()){\r\n      return null;\r\n    }\r\n    // Match URL\r\n    stream.match(/^[^\\s]+/, true);\r\n    // Check for link title\r\n    if (stream.peek() === undefined) { // End of line, set flag to check next line\r\n      state.linkTitle = true;\r\n    } else { // More content on line, check if link title\r\n      stream.match(/^(?:\\s+(?:\"(?:[^\"\\\\]|\\\\\\\\|\\\\.)+\"|'(?:[^'\\\\]|\\\\\\\\|\\\\.)+'|\\((?:[^)\\\\]|\\\\\\\\|\\\\.)+\\)))?/, true);\r\n    }\r\n    state.f = state.inline = inlineNormal;\r\n    return linkhref + \" url\";\r\n  }\r\n\r\n  var savedInlineRE = [];\r\n  function inlineRE(endChar) {\r\n    if (!savedInlineRE[endChar]) {\r\n      // Escape endChar for RegExp (taken from http://stackoverflow.com/a/494122/526741)\r\n      endChar = (endChar+'').replace(/([.?*+^$[\\]\\\\(){}|-])/g, \"\\\\$1\");\r\n      // Match any non-endChar, escaped character, as well as the closing\r\n      // endChar.\r\n      savedInlineRE[endChar] = new RegExp('^(?:[^\\\\\\\\]|\\\\\\\\.)*?(' + endChar + ')');\r\n    }\r\n    return savedInlineRE[endChar];\r\n  }\r\n\r\n  var mode = {\r\n    startState: function() {\r\n      return {\r\n        f: blockNormal,\r\n\r\n        prevLine: null,\r\n        thisLine: null,\r\n\r\n        block: blockNormal,\r\n        htmlState: null,\r\n        indentation: 0,\r\n\r\n        inline: inlineNormal,\r\n        text: handleText,\r\n\r\n        formatting: false,\r\n        linkText: false,\r\n        linkHref: false,\r\n        linkTitle: false,\r\n        em: false,\r\n        strong: false,\r\n        header: 0,\r\n        hr: false,\r\n        taskList: false,\r\n        list: false,\r\n        listDepth: 0,\r\n        quote: 0,\r\n        trailingSpace: 0,\r\n        trailingSpaceNewLine: false,\r\n        strikethrough: false,\r\n        fencedChars: null\r\n      };\r\n    },\r\n\r\n    copyState: function(s) {\r\n      return {\r\n        f: s.f,\r\n\r\n        prevLine: s.prevLine,\r\n        thisLine: s.this,\r\n\r\n        block: s.block,\r\n        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),\r\n        indentation: s.indentation,\r\n\r\n        localMode: s.localMode,\r\n        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,\r\n\r\n        inline: s.inline,\r\n        text: s.text,\r\n        formatting: false,\r\n        linkTitle: s.linkTitle,\r\n        code: s.code,\r\n        em: s.em,\r\n        strong: s.strong,\r\n        strikethrough: s.strikethrough,\r\n        header: s.header,\r\n        hr: s.hr,\r\n        taskList: s.taskList,\r\n        list: s.list,\r\n        listDepth: s.listDepth,\r\n        quote: s.quote,\r\n        indentedCode: s.indentedCode,\r\n        trailingSpace: s.trailingSpace,\r\n        trailingSpaceNewLine: s.trailingSpaceNewLine,\r\n        md_inside: s.md_inside,\r\n        fencedChars: s.fencedChars\r\n      };\r\n    },\r\n\r\n    token: function(stream, state) {\r\n\r\n      // Reset state.formatting\r\n      state.formatting = false;\r\n\r\n      if (stream != state.thisLine) {\r\n        var forceBlankLine = state.header || state.hr;\r\n\r\n        // Reset state.header and state.hr\r\n        state.header = 0;\r\n        state.hr = false;\r\n\r\n        if (stream.match(/^\\s*$/, true) || forceBlankLine) {\r\n          blankLine(state);\r\n          if (!forceBlankLine) return null\r\n          state.prevLine = null\r\n        }\r\n\r\n        state.prevLine = state.thisLine\r\n        state.thisLine = stream\r\n\r\n        // Reset state.taskList\r\n        state.taskList = false;\r\n\r\n        // Reset state.trailingSpace\r\n        state.trailingSpace = 0;\r\n        state.trailingSpaceNewLine = false;\r\n\r\n        state.f = state.block;\r\n        var indentation = stream.match(/^\\s*/, true)[0].replace(/\\t/g, '    ').length;\r\n        var difference = Math.floor((indentation - state.indentation) / 4) * 4;\r\n        if (difference > 4) difference = 4;\r\n        var adjustedIndentation = state.indentation + difference;\r\n        state.indentationDiff = adjustedIndentation - state.indentation;\r\n        state.indentation = adjustedIndentation;\r\n        if (indentation > 0) return null;\r\n      }\r\n      return state.f(stream, state);\r\n    },\r\n\r\n    innerMode: function(state) {\r\n      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};\r\n      if (state.localState) return {state: state.localState, mode: state.localMode};\r\n      return {state: state, mode: mode};\r\n    },\r\n\r\n    blankLine: blankLine,\r\n\r\n    getType: getType,\r\n\r\n    fold: \"markdown\"\r\n  };\r\n  return mode;\r\n}, \"xml\");\r\n\r\nCodeMirror.defineMIME(\"text/x-markdown\", \"markdown\");\r\n\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../lib/codemirror\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../lib/codemirror\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n  \"use strict\";\r\n\r\n  CodeMirror.modeInfo = [\r\n    {name: \"APL\", mime: \"text/apl\", mode: \"apl\", ext: [\"dyalog\", \"apl\"]},\r\n    {name: \"PGP\", mimes: [\"application/pgp\", \"application/pgp-keys\", \"application/pgp-signature\"], mode: \"asciiarmor\", ext: [\"pgp\"]},\r\n    {name: \"ASN.1\", mime: \"text/x-ttcn-asn\", mode: \"asn.1\", ext: [\"asn\", \"asn1\"]},\r\n    {name: \"Asterisk\", mime: \"text/x-asterisk\", mode: \"asterisk\", file: /^extensions\\.conf$/i},\r\n    {name: \"Brainfuck\", mime: \"text/x-brainfuck\", mode: \"brainfuck\", ext: [\"b\", \"bf\"]},\r\n    {name: \"C\", mime: \"text/x-csrc\", mode: \"clike\", ext: [\"c\", \"h\"]},\r\n    {name: \"C++\", mime: \"text/x-c++src\", mode: \"clike\", ext: [\"cpp\", \"c++\", \"cc\", \"cxx\", \"hpp\", \"h++\", \"hh\", \"hxx\"], alias: [\"cpp\"]},\r\n    {name: \"Cobol\", mime: \"text/x-cobol\", mode: \"cobol\", ext: [\"cob\", \"cpy\"]},\r\n    {name: \"C#\", mime: \"text/x-csharp\", mode: \"clike\", ext: [\"cs\"], alias: [\"csharp\"]},\r\n    {name: \"Clojure\", mime: \"text/x-clojure\", mode: \"clojure\", ext: [\"clj\"]},\r\n    {name: \"Closure Stylesheets (GSS)\", mime: \"text/x-gss\", mode: \"css\", ext: [\"gss\"]},\r\n    {name: \"CMake\", mime: \"text/x-cmake\", mode: \"cmake\", ext: [\"cmake\", \"cmake.in\"], file: /^CMakeLists.txt$/},\r\n    {name: \"CoffeeScript\", mime: \"text/x-coffeescript\", mode: \"coffeescript\", ext: [\"coffee\"], alias: [\"coffee\", \"coffee-script\"]},\r\n    {name: \"Common Lisp\", mime: \"text/x-common-lisp\", mode: \"commonlisp\", ext: [\"cl\", \"lisp\", \"el\"], alias: [\"lisp\"]},\r\n    {name: \"Cypher\", mime: \"application/x-cypher-query\", mode: \"cypher\", ext: [\"cyp\", \"cypher\"]},\r\n    {name: \"Cython\", mime: \"text/x-cython\", mode: \"python\", ext: [\"pyx\", \"pxd\", \"pxi\"]},\r\n    {name: \"CSS\", mime: \"text/css\", mode: \"css\", ext: [\"css\"]},\r\n    {name: \"CQL\", mime: \"text/x-cassandra\", mode: \"sql\", ext: [\"cql\"]},\r\n    {name: \"D\", mime: \"text/x-d\", mode: \"d\", ext: [\"d\"]},\r\n    {name: \"Dart\", mimes: [\"application/dart\", \"text/x-dart\"], mode: \"dart\", ext: [\"dart\"]},\r\n    {name: \"diff\", mime: \"text/x-diff\", mode: \"diff\", ext: [\"diff\", \"patch\"]},\r\n    {name: \"Django\", mime: \"text/x-django\", mode: \"django\"},\r\n    {name: \"Dockerfile\", mime: \"text/x-dockerfile\", mode: \"dockerfile\", file: /^Dockerfile$/},\r\n    {name: \"DTD\", mime: \"application/xml-dtd\", mode: \"dtd\", ext: [\"dtd\"]},\r\n    {name: \"Dylan\", mime: \"text/x-dylan\", mode: \"dylan\", ext: [\"dylan\", \"dyl\", \"intr\"]},\r\n    {name: \"EBNF\", mime: \"text/x-ebnf\", mode: \"ebnf\"},\r\n    {name: \"ECL\", mime: \"text/x-ecl\", mode: \"ecl\", ext: [\"ecl\"]},\r\n    {name: \"Eiffel\", mime: \"text/x-eiffel\", mode: \"eiffel\", ext: [\"e\"]},\r\n    {name: \"Elm\", mime: \"text/x-elm\", mode: \"elm\", ext: [\"elm\"]},\r\n    {name: \"Embedded Javascript\", mime: \"application/x-ejs\", mode: \"htmlembedded\", ext: [\"ejs\"]},\r\n    {name: \"Embedded Ruby\", mime: \"application/x-erb\", mode: \"htmlembedded\", ext: [\"erb\"]},\r\n    {name: \"Erlang\", mime: \"text/x-erlang\", mode: \"erlang\", ext: [\"erl\"]},\r\n    {name: \"Factor\", mime: \"text/x-factor\", mode: \"factor\", ext: [\"factor\"]},\r\n    {name: \"Forth\", mime: \"text/x-forth\", mode: \"forth\", ext: [\"forth\", \"fth\", \"4th\"]},\r\n    {name: \"Fortran\", mime: \"text/x-fortran\", mode: \"fortran\", ext: [\"f\", \"for\", \"f77\", \"f90\"]},\r\n    {name: \"F#\", mime: \"text/x-fsharp\", mode: \"mllike\", ext: [\"fs\"], alias: [\"fsharp\"]},\r\n    {name: \"Gas\", mime: \"text/x-gas\", mode: \"gas\", ext: [\"s\"]},\r\n    {name: \"Gherkin\", mime: \"text/x-feature\", mode: \"gherkin\", ext: [\"feature\"]},\r\n    {name: \"GitHub Flavored Markdown\", mime: \"text/x-gfm\", mode: \"gfm\", file: /^(readme|contributing|history).md$/i},\r\n    {name: \"Go\", mime: \"text/x-go\", mode: \"go\", ext: [\"go\"]},\r\n    {name: \"Groovy\", mime: \"text/x-groovy\", mode: \"groovy\", ext: [\"groovy\"]},\r\n    {name: \"HAML\", mime: \"text/x-haml\", mode: \"haml\", ext: [\"haml\"]},\r\n    {name: \"Haskell\", mime: \"text/x-haskell\", mode: \"haskell\", ext: [\"hs\"]},\r\n    {name: \"Haxe\", mime: \"text/x-haxe\", mode: \"haxe\", ext: [\"hx\"]},\r\n    {name: \"HXML\", mime: \"text/x-hxml\", mode: \"haxe\", ext: [\"hxml\"]},\r\n    {name: \"ASP.NET\", mime: \"application/x-aspx\", mode: \"htmlembedded\", ext: [\"aspx\"], alias: [\"asp\", \"aspx\"]},\r\n    {name: \"HTML\", mime: \"text/html\", mode: \"htmlmixed\", ext: [\"html\", \"htm\"], alias: [\"xhtml\"]},\r\n    {name: \"HTTP\", mime: \"message/http\", mode: \"http\"},\r\n    {name: \"IDL\", mime: \"text/x-idl\", mode: \"idl\", ext: [\"pro\"]},\r\n    {name: \"Jade\", mime: \"text/x-jade\", mode: \"jade\", ext: [\"jade\"]},\r\n    {name: \"Java\", mime: \"text/x-java\", mode: \"clike\", ext: [\"java\"]},\r\n    {name: \"Java Server Pages\", mime: \"application/x-jsp\", mode: \"htmlembedded\", ext: [\"jsp\"], alias: [\"jsp\"]},\r\n    {name: \"JavaScript\", mimes: [\"text/javascript\", \"text/ecmascript\", \"application/javascript\", \"application/x-javascript\", \"application/ecmascript\"],\r\n     mode: \"javascript\", ext: [\"js\"], alias: [\"ecmascript\", \"js\", \"node\"]},\r\n    {name: \"JSON\", mimes: [\"application/json\", \"application/x-json\"], mode: \"javascript\", ext: [\"json\", \"map\"], alias: [\"json5\"]},\r\n    {name: \"JSON-LD\", mime: \"application/ld+json\", mode: \"javascript\", ext: [\"jsonld\"], alias: [\"jsonld\"]},\r\n    {name: \"Jinja2\", mime: \"null\", mode: \"jinja2\"},\r\n    {name: \"Julia\", mime: \"text/x-julia\", mode: \"julia\", ext: [\"jl\"]},\r\n    {name: \"Kotlin\", mime: \"text/x-kotlin\", mode: \"clike\", ext: [\"kt\"]},\r\n    {name: \"LESS\", mime: \"text/x-less\", mode: \"css\", ext: [\"less\"]},\r\n    {name: \"LiveScript\", mime: \"text/x-livescript\", mode: \"livescript\", ext: [\"ls\"], alias: [\"ls\"]},\r\n    {name: \"Lua\", mime: \"text/x-lua\", mode: \"lua\", ext: [\"lua\"]},\r\n    {name: \"Markdown\", mime: \"text/x-markdown\", mode: \"markdown\", ext: [\"markdown\", \"md\", \"mkd\"]},\r\n    {name: \"mIRC\", mime: \"text/mirc\", mode: \"mirc\"},\r\n    {name: \"MariaDB SQL\", mime: \"text/x-mariadb\", mode: \"sql\"},\r\n    {name: \"Mathematica\", mime: \"text/x-mathematica\", mode: \"mathematica\", ext: [\"m\", \"nb\"]},\r\n    {name: \"Modelica\", mime: \"text/x-modelica\", mode: \"modelica\", ext: [\"mo\"]},\r\n    {name: \"MUMPS\", mime: \"text/x-mumps\", mode: \"mumps\"},\r\n    {name: \"MS SQL\", mime: \"text/x-mssql\", mode: \"sql\"},\r\n    {name: \"MySQL\", mime: \"text/x-mysql\", mode: \"sql\"},\r\n    {name: \"Nginx\", mime: \"text/x-nginx-conf\", mode: \"nginx\", file: /nginx.*\\.conf$/i},\r\n    {name: \"NTriples\", mime: \"text/n-triples\", mode: \"ntriples\", ext: [\"nt\"]},\r\n    {name: \"Objective C\", mime: \"text/x-objectivec\", mode: \"clike\", ext: [\"m\", \"mm\"]},\r\n    {name: \"OCaml\", mime: \"text/x-ocaml\", mode: \"mllike\", ext: [\"ml\", \"mli\", \"mll\", \"mly\"]},\r\n    {name: \"Octave\", mime: \"text/x-octave\", mode: \"octave\", ext: [\"m\"]},\r\n    {name: \"Oz\", mime: \"text/x-oz\", mode: \"oz\", ext: [\"oz\"]},\r\n    {name: \"Pascal\", mime: \"text/x-pascal\", mode: \"pascal\", ext: [\"p\", \"pas\"]},\r\n    {name: \"PEG.js\", mime: \"null\", mode: \"pegjs\", ext: [\"jsonld\"]},\r\n    {name: \"Perl\", mime: \"text/x-perl\", mode: \"perl\", ext: [\"pl\", \"pm\"]},\r\n    {name: \"PHP\", mime: \"application/x-httpd-php\", mode: \"php\", ext: [\"php\", \"php3\", \"php4\", \"php5\", \"phtml\"]},\r\n    {name: \"Pig\", mime: \"text/x-pig\", mode: \"pig\", ext: [\"pig\"]},\r\n    {name: \"Plain Text\", mime: \"text/plain\", mode: \"null\", ext: [\"txt\", \"text\", \"conf\", \"def\", \"list\", \"log\"]},\r\n    {name: \"PLSQL\", mime: \"text/x-plsql\", mode: \"sql\", ext: [\"pls\"]},\r\n    {name: \"Properties files\", mime: \"text/x-properties\", mode: \"properties\", ext: [\"properties\", \"ini\", \"in\"], alias: [\"ini\", \"properties\"]},\r\n    {name: \"Python\", mime: \"text/x-python\", mode: \"python\", ext: [\"py\", \"pyw\"]},\r\n    {name: \"Puppet\", mime: \"text/x-puppet\", mode: \"puppet\", ext: [\"pp\"]},\r\n    {name: \"Q\", mime: \"text/x-q\", mode: \"q\", ext: [\"q\"]},\r\n    {name: \"R\", mime: \"text/x-rsrc\", mode: \"r\", ext: [\"r\"], alias: [\"rscript\"]},\r\n    {name: \"reStructuredText\", mime: \"text/x-rst\", mode: \"rst\", ext: [\"rst\"], alias: [\"rst\"]},\r\n    {name: \"RPM Changes\", mime: \"text/x-rpm-changes\", mode: \"rpm\"},\r\n    {name: \"RPM Spec\", mime: \"text/x-rpm-spec\", mode: \"rpm\", ext: [\"spec\"]},\r\n    {name: \"Ruby\", mime: \"text/x-ruby\", mode: \"ruby\", ext: [\"rb\"], alias: [\"jruby\", \"macruby\", \"rake\", \"rb\", \"rbx\"]},\r\n    {name: \"Rust\", mime: \"text/x-rustsrc\", mode: \"rust\", ext: [\"rs\"]},\r\n    {name: \"Sass\", mime: \"text/x-sass\", mode: \"sass\", ext: [\"sass\"]},\r\n    {name: \"Scala\", mime: \"text/x-scala\", mode: \"clike\", ext: [\"scala\"]},\r\n    {name: \"Scheme\", mime: \"text/x-scheme\", mode: \"scheme\", ext: [\"scm\", \"ss\"]},\r\n    {name: \"SCSS\", mime: \"text/x-scss\", mode: \"css\", ext: [\"scss\"]},\r\n    {name: \"Shell\", mime: \"text/x-sh\", mode: \"shell\", ext: [\"sh\", \"ksh\", \"bash\"], alias: [\"bash\", \"sh\", \"zsh\"]},\r\n    {name: \"Sieve\", mime: \"application/sieve\", mode: \"sieve\", ext: [\"siv\", \"sieve\"]},\r\n    {name: \"Slim\", mimes: [\"text/x-slim\", \"application/x-slim\"], mode: \"slim\", ext: [\"slim\"]},\r\n    {name: \"Smalltalk\", mime: \"text/x-stsrc\", mode: \"smalltalk\", ext: [\"st\"]},\r\n    {name: \"Smarty\", mime: \"text/x-smarty\", mode: \"smarty\", ext: [\"tpl\"]},\r\n    {name: \"Solr\", mime: \"text/x-solr\", mode: \"solr\"},\r\n    {name: \"Soy\", mime: \"text/x-soy\", mode: \"soy\", ext: [\"soy\"], alias: [\"closure template\"]},\r\n    {name: \"SPARQL\", mime: \"application/sparql-query\", mode: \"sparql\", ext: [\"rq\", \"sparql\"], alias: [\"sparul\"]},\r\n    {name: \"Spreadsheet\", mime: \"text/x-spreadsheet\", mode: \"spreadsheet\", alias: [\"excel\", \"formula\"]},\r\n    {name: \"SQL\", mime: \"text/x-sql\", mode: \"sql\", ext: [\"sql\"]},\r\n    {name: \"Squirrel\", mime: \"text/x-squirrel\", mode: \"clike\", ext: [\"nut\"]},\r\n    {name: \"Swift\", mime: \"text/x-swift\", mode: \"swift\", ext: [\"swift\"]},\r\n    {name: \"MariaDB\", mime: \"text/x-mariadb\", mode: \"sql\"},\r\n    {name: \"sTeX\", mime: \"text/x-stex\", mode: \"stex\"},\r\n    {name: \"LaTeX\", mime: \"text/x-latex\", mode: \"stex\", ext: [\"text\", \"ltx\"], alias: [\"tex\"]},\r\n    {name: \"SystemVerilog\", mime: \"text/x-systemverilog\", mode: \"verilog\", ext: [\"v\"]},\r\n    {name: \"Tcl\", mime: \"text/x-tcl\", mode: \"tcl\", ext: [\"tcl\"]},\r\n    {name: \"Textile\", mime: \"text/x-textile\", mode: \"textile\", ext: [\"textile\"]},\r\n    {name: \"TiddlyWiki \", mime: \"text/x-tiddlywiki\", mode: \"tiddlywiki\"},\r\n    {name: \"Tiki wiki\", mime: \"text/tiki\", mode: \"tiki\"},\r\n    {name: \"TOML\", mime: \"text/x-toml\", mode: \"toml\", ext: [\"toml\"]},\r\n    {name: \"Tornado\", mime: \"text/x-tornado\", mode: \"tornado\"},\r\n    {name: \"troff\", mime: \"troff\", mode: \"troff\", ext: [\"1\", \"2\", \"3\", \"4\", \"5\", \"6\", \"7\", \"8\", \"9\"]},\r\n    {name: \"TTCN\", mime: \"text/x-ttcn\", mode: \"ttcn\", ext: [\"ttcn\", \"ttcn3\", \"ttcnpp\"]},\r\n    {name: \"TTCN_CFG\", mime: \"text/x-ttcn-cfg\", mode: \"ttcn-cfg\", ext: [\"cfg\"]},\r\n    {name: \"Turtle\", mime: \"text/turtle\", mode: \"turtle\", ext: [\"ttl\"]},\r\n    {name: \"TypeScript\", mime: \"application/typescript\", mode: \"javascript\", ext: [\"ts\"], alias: [\"ts\"]},\r\n    {name: \"Twig\", mime: \"text/x-twig\", mode: \"twig\"},\r\n    {name: \"VB.NET\", mime: \"text/x-vb\", mode: \"vb\", ext: [\"vb\"]},\r\n    {name: \"VBScript\", mime: \"text/vbscript\", mode: \"vbscript\", ext: [\"vbs\"]},\r\n    {name: \"Velocity\", mime: \"text/velocity\", mode: \"velocity\", ext: [\"vtl\"]},\r\n    {name: \"Verilog\", mime: \"text/x-verilog\", mode: \"verilog\", ext: [\"v\"]},\r\n    {name: \"VHDL\", mime: \"text/x-vhdl\", mode: \"vhdl\", ext: [\"vhd\", \"vhdl\"]},\r\n    {name: \"XML\", mimes: [\"application/xml\", \"text/xml\"], mode: \"xml\", ext: [\"xml\", \"xsl\", \"xsd\"], alias: [\"rss\", \"wsdl\", \"xsd\"]},\r\n    {name: \"XQuery\", mime: \"application/xquery\", mode: \"xquery\", ext: [\"xy\", \"xquery\"]},\r\n    {name: \"YAML\", mime: \"text/x-yaml\", mode: \"yaml\", ext: [\"yaml\", \"yml\"], alias: [\"yml\"]},\r\n    {name: \"Z80\", mime: \"text/x-z80\", mode: \"z80\", ext: [\"z80\"]},\r\n    {name: \"mscgen\", mime: \"text/x-mscgen\", mode: \"mscgen\", ext: [\"mscgen\", \"mscin\", \"msc\"]},\r\n    {name: \"xu\", mime: \"text/x-xu\", mode: \"mscgen\", ext: [\"xu\"]},\r\n    {name: \"msgenny\", mime: \"text/x-msgenny\", mode: \"mscgen\", ext: [\"msgenny\"]}\r\n  ];\r\n  // Ensure all modes have a mime property for backwards compatibility\r\n  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\r\n    var info = CodeMirror.modeInfo[i];\r\n    if (info.mimes) info.mime = info.mimes[0];\r\n  }\r\n\r\n  CodeMirror.findModeByMIME = function(mime) {\r\n    mime = mime.toLowerCase();\r\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\r\n      var info = CodeMirror.modeInfo[i];\r\n      if (info.mime == mime) return info;\r\n      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)\r\n        if (info.mimes[j] == mime) return info;\r\n    }\r\n  };\r\n\r\n  CodeMirror.findModeByExtension = function(ext) {\r\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\r\n      var info = CodeMirror.modeInfo[i];\r\n      if (info.ext) for (var j = 0; j < info.ext.length; j++)\r\n        if (info.ext[j] == ext) return info;\r\n    }\r\n  };\r\n\r\n  CodeMirror.findModeByFileName = function(filename) {\r\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\r\n      var info = CodeMirror.modeInfo[i];\r\n      if (info.file && info.file.test(filename)) return info;\r\n    }\r\n    var dot = filename.lastIndexOf(\".\");\r\n    var ext = dot > -1 && filename.substring(dot + 1, filename.length);\r\n    if (ext) return CodeMirror.findModeByExtension(ext);\r\n  };\r\n\r\n  CodeMirror.findModeByName = function(name) {\r\n    name = name.toLowerCase();\r\n    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {\r\n      var info = CodeMirror.modeInfo[i];\r\n      if (info.name.toLowerCase() == name) return info;\r\n      if (info.alias) for (var j = 0; j < info.alias.length; j++)\r\n        if (info.alias[j].toLowerCase() == name) return info;\r\n    }\r\n  };\r\n});\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\r\n// Distributed under an MIT license: http://codemirror.net/LICENSE\r\n\r\n(function(mod) {\r\n  if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\r\n    mod(require(\"../../lib/codemirror\"));\r\n  else if (typeof define == \"function\" && define.amd) // AMD\r\n    define([\"../../lib/codemirror\"], mod);\r\n  else // Plain browser env\r\n    mod(CodeMirror);\r\n})(function(CodeMirror) {\r\n\"use strict\";\r\n\r\nCodeMirror.defineMode(\"xml\", function(config, parserConfig) {\r\n  var indentUnit = config.indentUnit;\r\n  var multilineTagIndentFactor = parserConfig.multilineTagIndentFactor || 1;\r\n  var multilineTagIndentPastTag = parserConfig.multilineTagIndentPastTag;\r\n  if (multilineTagIndentPastTag == null) multilineTagIndentPastTag = true;\r\n\r\n  var Kludges = parserConfig.htmlMode ? {\r\n    autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,\r\n                      'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,\r\n                      'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,\r\n                      'track': true, 'wbr': true, 'menuitem': true},\r\n    implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,\r\n                       'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,\r\n                       'th': true, 'tr': true},\r\n    contextGrabbers: {\r\n      'dd': {'dd': true, 'dt': true},\r\n      'dt': {'dd': true, 'dt': true},\r\n      'li': {'li': true},\r\n      'option': {'option': true, 'optgroup': true},\r\n      'optgroup': {'optgroup': true},\r\n      'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,\r\n            'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,\r\n            'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,\r\n            'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,\r\n            'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},\r\n      'rp': {'rp': true, 'rt': true},\r\n      'rt': {'rp': true, 'rt': true},\r\n      'tbody': {'tbody': true, 'tfoot': true},\r\n      'td': {'td': true, 'th': true},\r\n      'tfoot': {'tbody': true},\r\n      'th': {'td': true, 'th': true},\r\n      'thead': {'tbody': true, 'tfoot': true},\r\n      'tr': {'tr': true}\r\n    },\r\n    doNotIndent: {\"pre\": true},\r\n    allowUnquoted: true,\r\n    allowMissing: true,\r\n    caseFold: true\r\n  } : {\r\n    autoSelfClosers: {},\r\n    implicitlyClosed: {},\r\n    contextGrabbers: {},\r\n    doNotIndent: {},\r\n    allowUnquoted: false,\r\n    allowMissing: false,\r\n    caseFold: false\r\n  };\r\n  var alignCDATA = parserConfig.alignCDATA;\r\n\r\n  // Return variables for tokenizers\r\n  var type, setStyle;\r\n\r\n  function inText(stream, state) {\r\n    function chain(parser) {\r\n      state.tokenize = parser;\r\n      return parser(stream, state);\r\n    }\r\n\r\n    var ch = stream.next();\r\n    if (ch == \"<\") {\r\n      if (stream.eat(\"!\")) {\r\n        if (stream.eat(\"[\")) {\r\n          if (stream.match(\"CDATA[\")) return chain(inBlock(\"atom\", \"]]>\"));\r\n          else return null;\r\n        } else if (stream.match(\"--\")) {\r\n          return chain(inBlock(\"comment\", \"-->\"));\r\n        } else if (stream.match(\"DOCTYPE\", true, true)) {\r\n          stream.eatWhile(/[\\w\\._\\-]/);\r\n          return chain(doctype(1));\r\n        } else {\r\n          return null;\r\n        }\r\n      } else if (stream.eat(\"?\")) {\r\n        stream.eatWhile(/[\\w\\._\\-]/);\r\n        state.tokenize = inBlock(\"meta\", \"?>\");\r\n        return \"meta\";\r\n      } else {\r\n        type = stream.eat(\"/\") ? \"closeTag\" : \"openTag\";\r\n        state.tokenize = inTag;\r\n        return \"tag bracket\";\r\n      }\r\n    } else if (ch == \"&\") {\r\n      var ok;\r\n      if (stream.eat(\"#\")) {\r\n        if (stream.eat(\"x\")) {\r\n          ok = stream.eatWhile(/[a-fA-F\\d]/) && stream.eat(\";\");\r\n        } else {\r\n          ok = stream.eatWhile(/[\\d]/) && stream.eat(\";\");\r\n        }\r\n      } else {\r\n        ok = stream.eatWhile(/[\\w\\.\\-:]/) && stream.eat(\";\");\r\n      }\r\n      return ok ? \"atom\" : \"error\";\r\n    } else {\r\n      stream.eatWhile(/[^&<]/);\r\n      return null;\r\n    }\r\n  }\r\n  inText.isInText = true;\r\n\r\n  function inTag(stream, state) {\r\n    var ch = stream.next();\r\n    if (ch == \">\" || (ch == \"/\" && stream.eat(\">\"))) {\r\n      state.tokenize = inText;\r\n      type = ch == \">\" ? \"endTag\" : \"selfcloseTag\";\r\n      return \"tag bracket\";\r\n    } else if (ch == \"=\") {\r\n      type = \"equals\";\r\n      return null;\r\n    } else if (ch == \"<\") {\r\n      state.tokenize = inText;\r\n      state.state = baseState;\r\n      state.tagName = state.tagStart = null;\r\n      var next = state.tokenize(stream, state);\r\n      return next ? next + \" tag error\" : \"tag error\";\r\n    } else if (/[\\'\\\"]/.test(ch)) {\r\n      state.tokenize = inAttribute(ch);\r\n      state.stringStartCol = stream.column();\r\n      return state.tokenize(stream, state);\r\n    } else {\r\n      stream.match(/^[^\\s\\u00a0=<>\\\"\\']*[^\\s\\u00a0=<>\\\"\\'\\/]/);\r\n      return \"word\";\r\n    }\r\n  }\r\n\r\n  function inAttribute(quote) {\r\n    var closure = function(stream, state) {\r\n      while (!stream.eol()) {\r\n        if (stream.next() == quote) {\r\n          state.tokenize = inTag;\r\n          break;\r\n        }\r\n      }\r\n      return \"string\";\r\n    };\r\n    closure.isInAttribute = true;\r\n    return closure;\r\n  }\r\n\r\n  function inBlock(style, terminator) {\r\n    return function(stream, state) {\r\n      while (!stream.eol()) {\r\n        if (stream.match(terminator)) {\r\n          state.tokenize = inText;\r\n          break;\r\n        }\r\n        stream.next();\r\n      }\r\n      return style;\r\n    };\r\n  }\r\n  function doctype(depth) {\r\n    return function(stream, state) {\r\n      var ch;\r\n      while ((ch = stream.next()) != null) {\r\n        if (ch == \"<\") {\r\n          state.tokenize = doctype(depth + 1);\r\n          return state.tokenize(stream, state);\r\n        } else if (ch == \">\") {\r\n          if (depth == 1) {\r\n            state.tokenize = inText;\r\n            break;\r\n          } else {\r\n            state.tokenize = doctype(depth - 1);\r\n            return state.tokenize(stream, state);\r\n          }\r\n        }\r\n      }\r\n      return \"meta\";\r\n    };\r\n  }\r\n\r\n  function Context(state, tagName, startOfLine) {\r\n    this.prev = state.context;\r\n    this.tagName = tagName;\r\n    this.indent = state.indented;\r\n    this.startOfLine = startOfLine;\r\n    if (Kludges.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))\r\n      this.noIndent = true;\r\n  }\r\n  function popContext(state) {\r\n    if (state.context) state.context = state.context.prev;\r\n  }\r\n  function maybePopContext(state, nextTagName) {\r\n    var parentTagName;\r\n    while (true) {\r\n      if (!state.context) {\r\n        return;\r\n      }\r\n      parentTagName = state.context.tagName;\r\n      if (!Kludges.contextGrabbers.hasOwnProperty(parentTagName) ||\r\n          !Kludges.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {\r\n        return;\r\n      }\r\n      popContext(state);\r\n    }\r\n  }\r\n\r\n  function baseState(type, stream, state) {\r\n    if (type == \"openTag\") {\r\n      state.tagStart = stream.column();\r\n      return tagNameState;\r\n    } else if (type == \"closeTag\") {\r\n      return closeTagNameState;\r\n    } else {\r\n      return baseState;\r\n    }\r\n  }\r\n  function tagNameState(type, stream, state) {\r\n    if (type == \"word\") {\r\n      state.tagName = stream.current();\r\n      setStyle = \"tag\";\r\n      return attrState;\r\n    } else {\r\n      setStyle = \"error\";\r\n      return tagNameState;\r\n    }\r\n  }\r\n  function closeTagNameState(type, stream, state) {\r\n    if (type == \"word\") {\r\n      var tagName = stream.current();\r\n      if (state.context && state.context.tagName != tagName &&\r\n          Kludges.implicitlyClosed.hasOwnProperty(state.context.tagName))\r\n        popContext(state);\r\n      if (state.context && state.context.tagName == tagName) {\r\n        setStyle = \"tag\";\r\n        return closeState;\r\n      } else {\r\n        setStyle = \"tag error\";\r\n        return closeStateErr;\r\n      }\r\n    } else {\r\n      setStyle = \"error\";\r\n      return closeStateErr;\r\n    }\r\n  }\r\n\r\n  function closeState(type, _stream, state) {\r\n    if (type != \"endTag\") {\r\n      setStyle = \"error\";\r\n      return closeState;\r\n    }\r\n    popContext(state);\r\n    return baseState;\r\n  }\r\n  function closeStateErr(type, stream, state) {\r\n    setStyle = \"error\";\r\n    return closeState(type, stream, state);\r\n  }\r\n\r\n  function attrState(type, _stream, state) {\r\n    if (type == \"word\") {\r\n      setStyle = \"attribute\";\r\n      return attrEqState;\r\n    } else if (type == \"endTag\" || type == \"selfcloseTag\") {\r\n      var tagName = state.tagName, tagStart = state.tagStart;\r\n      state.tagName = state.tagStart = null;\r\n      if (type == \"selfcloseTag\" ||\r\n          Kludges.autoSelfClosers.hasOwnProperty(tagName)) {\r\n        maybePopContext(state, tagName);\r\n      } else {\r\n        maybePopContext(state, tagName);\r\n        state.context = new Context(state, tagName, tagStart == state.indented);\r\n      }\r\n      return baseState;\r\n    }\r\n    setStyle = \"error\";\r\n    return attrState;\r\n  }\r\n  function attrEqState(type, stream, state) {\r\n    if (type == \"equals\") return attrValueState;\r\n    if (!Kludges.allowMissing) setStyle = \"error\";\r\n    return attrState(type, stream, state);\r\n  }\r\n  function attrValueState(type, stream, state) {\r\n    if (type == \"string\") return attrContinuedState;\r\n    if (type == \"word\" && Kludges.allowUnquoted) {setStyle = \"string\"; return attrState;}\r\n    setStyle = \"error\";\r\n    return attrState(type, stream, state);\r\n  }\r\n  function attrContinuedState(type, stream, state) {\r\n    if (type == \"string\") return attrContinuedState;\r\n    return attrState(type, stream, state);\r\n  }\r\n\r\n  return {\r\n    startState: function() {\r\n      return {tokenize: inText,\r\n              state: baseState,\r\n              indented: 0,\r\n              tagName: null, tagStart: null,\r\n              context: null};\r\n    },\r\n\r\n    token: function(stream, state) {\r\n      if (!state.tagName && stream.sol())\r\n        state.indented = stream.indentation();\r\n\r\n      if (stream.eatSpace()) return null;\r\n      type = null;\r\n      var style = state.tokenize(stream, state);\r\n      if ((style || type) && style != \"comment\") {\r\n        setStyle = null;\r\n        state.state = state.state(type || style, stream, state);\r\n        if (setStyle)\r\n          style = setStyle == \"error\" ? style + \" error\" : setStyle;\r\n      }\r\n      return style;\r\n    },\r\n\r\n    indent: function(state, textAfter, fullLine) {\r\n      var context = state.context;\r\n      // Indent multi-line strings (e.g. css).\r\n      if (state.tokenize.isInAttribute) {\r\n        if (state.tagStart == state.indented)\r\n          return state.stringStartCol + 1;\r\n        else\r\n          return state.indented + indentUnit;\r\n      }\r\n      if (context && context.noIndent) return CodeMirror.Pass;\r\n      if (state.tokenize != inTag && state.tokenize != inText)\r\n        return fullLine ? fullLine.match(/^(\\s*)/)[0].length : 0;\r\n      // Indent the starts of attribute names.\r\n      if (state.tagName) {\r\n        if (multilineTagIndentPastTag)\r\n          return state.tagStart + state.tagName.length + 2;\r\n        else\r\n          return state.tagStart + indentUnit * multilineTagIndentFactor;\r\n      }\r\n      if (alignCDATA && /<!\\[CDATA\\[/.test(textAfter)) return 0;\r\n      var tagAfter = textAfter && /^<(\\/)?([\\w_:\\.-]*)/.exec(textAfter);\r\n      if (tagAfter && tagAfter[1]) { // Closing tag spotted\r\n        while (context) {\r\n          if (context.tagName == tagAfter[2]) {\r\n            context = context.prev;\r\n            break;\r\n          } else if (Kludges.implicitlyClosed.hasOwnProperty(context.tagName)) {\r\n            context = context.prev;\r\n          } else {\r\n            break;\r\n          }\r\n        }\r\n      } else if (tagAfter) { // Opening tag spotted\r\n        while (context) {\r\n          var grabbers = Kludges.contextGrabbers[context.tagName];\r\n          if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))\r\n            context = context.prev;\r\n          else\r\n            break;\r\n        }\r\n      }\r\n      while (context && !context.startOfLine)\r\n        context = context.prev;\r\n      if (context) return context.indent + indentUnit;\r\n      else return 0;\r\n    },\r\n\r\n    electricInput: /<\\/[\\s\\w:]+>$/,\r\n    blockCommentStart: \"<!--\",\r\n    blockCommentEnd: \"-->\",\r\n\r\n    configuration: parserConfig.htmlMode ? \"html\" : \"xml\",\r\n    helperType: parserConfig.htmlMode ? \"html\" : \"xml\"\r\n  };\r\n});\r\n\r\nCodeMirror.defineMIME(\"text/xml\", \"xml\");\r\nCodeMirror.defineMIME(\"application/xml\", \"xml\");\r\nif (!CodeMirror.mimeModes.hasOwnProperty(\"text/html\"))\r\n  CodeMirror.defineMIME(\"text/html\", {name: \"xml\", htmlMode: true});\r\n\r\n});\r\n","/**\r\n * marked - a markdown parser\r\n * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)\r\n * https://github.com/chjj/marked\r\n */\r\n\r\n;(function() {\r\n\r\n/**\r\n * Block-Level Grammar\r\n */\r\n\r\nvar block = {\r\n  newline: /^\\n+/,\r\n  code: /^( {4}[^\\n]+\\n*)+/,\r\n  fences: noop,\r\n  hr: /^( *[-*_]){3,} *(?:\\n+|$)/,\r\n  heading: /^ *(#{1,6}) *([^\\n]+?) *#* *(?:\\n+|$)/,\r\n  nptable: noop,\r\n  lheading: /^([^\\n]+)\\n *(=|-){2,} *(?:\\n+|$)/,\r\n  blockquote: /^( *>[^\\n]+(\\n(?!def)[^\\n]+)*\\n*)+/,\r\n  list: /^( *)(bull) [\\s\\S]+?(?:hr|def|\\n{2,}(?! )(?!\\1bull )\\n*|\\s*$)/,\r\n  html: /^ *(?:comment *(?:\\n|\\s*$)|closed *(?:\\n{2,}|\\s*$)|closing *(?:\\n{2,}|\\s*$))/,\r\n  def: /^ *\\[([^\\]]+)\\]: *<?([^\\s>]+)>?(?: +[\"(]([^\\n]+)[\")])? *(?:\\n+|$)/,\r\n  table: noop,\r\n  paragraph: /^((?:[^\\n]+\\n?(?!hr|heading|lheading|blockquote|tag|def))+)\\n*/,\r\n  text: /^[^\\n]+/\r\n};\r\n\r\nblock.bullet = /(?:[*+-]|\\d+\\.)/;\r\nblock.item = /^( *)(bull) [^\\n]*(?:\\n(?!\\1bull )[^\\n]*)*/;\r\nblock.item = replace(block.item, 'gm')\r\n  (/bull/g, block.bullet)\r\n  ();\r\n\r\nblock.list = replace(block.list)\r\n  (/bull/g, block.bullet)\r\n  ('hr', '\\\\n+(?=\\\\1?(?:[-*_] *){3,}(?:\\\\n+|$))')\r\n  ('def', '\\\\n+(?=' + block.def.source + ')')\r\n  ();\r\n\r\nblock.blockquote = replace(block.blockquote)\r\n  ('def', block.def)\r\n  ();\r\n\r\nblock._tag = '(?!(?:'\r\n  + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'\r\n  + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'\r\n  + '|span|br|wbr|ins|del|img)\\\\b)\\\\w+(?!:/|[^\\\\w\\\\s@]*@)\\\\b';\r\n\r\nblock.html = replace(block.html)\r\n  ('comment', /<!--[\\s\\S]*?-->/)\r\n  ('closed', /<(tag)[\\s\\S]+?<\\/\\1>/)\r\n  ('closing', /<tag(?:\"[^\"]*\"|'[^']*'|[^'\">])*?>/)\r\n  (/tag/g, block._tag)\r\n  ();\r\n\r\nblock.paragraph = replace(block.paragraph)\r\n  ('hr', block.hr)\r\n  ('heading', block.heading)\r\n  ('lheading', block.lheading)\r\n  ('blockquote', block.blockquote)\r\n  ('tag', '<' + block._tag)\r\n  ('def', block.def)\r\n  ();\r\n\r\n/**\r\n * Normal Block Grammar\r\n */\r\n\r\nblock.normal = merge({}, block);\r\n\r\n/**\r\n * GFM Block Grammar\r\n */\r\n\r\nblock.gfm = merge({}, block.normal, {\r\n  fences: /^ *(`{3,}|~{3,})[ \\.]*(\\S+)? *\\n([\\s\\S]*?)\\s*\\1 *(?:\\n+|$)/,\r\n  paragraph: /^/,\r\n  heading: /^ *(#{1,6}) +([^\\n]+?) *#* *(?:\\n+|$)/\r\n});\r\n\r\nblock.gfm.paragraph = replace(block.paragraph)\r\n  ('(?!', '(?!'\r\n    + block.gfm.fences.source.replace('\\\\1', '\\\\2') + '|'\r\n    + block.list.source.replace('\\\\1', '\\\\3') + '|')\r\n  ();\r\n\r\n/**\r\n * GFM + Tables Block Grammar\r\n */\r\n\r\nblock.tables = merge({}, block.gfm, {\r\n  nptable: /^ *(\\S.*\\|.*)\\n *([-:]+ *\\|[-| :]*)\\n((?:.*\\|.*(?:\\n|$))*)\\n*/,\r\n  table: /^ *\\|(.+)\\n *\\|( *[-:]+[-| :]*)\\n((?: *\\|.*(?:\\n|$))*)\\n*/\r\n});\r\n\r\n/**\r\n * Block Lexer\r\n */\r\n\r\nfunction Lexer(options) {\r\n  this.tokens = [];\r\n  this.tokens.links = {};\r\n  this.options = options || marked.defaults;\r\n  this.rules = block.normal;\r\n\r\n  if (this.options.gfm) {\r\n    if (this.options.tables) {\r\n      this.rules = block.tables;\r\n    } else {\r\n      this.rules = block.gfm;\r\n    }\r\n  }\r\n}\r\n\r\n/**\r\n * Expose Block Rules\r\n */\r\n\r\nLexer.rules = block;\r\n\r\n/**\r\n * Static Lex Method\r\n */\r\n\r\nLexer.lex = function(src, options) {\r\n  var lexer = new Lexer(options);\r\n  return lexer.lex(src);\r\n};\r\n\r\n/**\r\n * Preprocessing\r\n */\r\n\r\nLexer.prototype.lex = function(src) {\r\n  src = src\r\n    .replace(/\\r\\n|\\r/g, '\\n')\r\n    .replace(/\\t/g, '    ')\r\n    .replace(/\\u00a0/g, ' ')\r\n    .replace(/\\u2424/g, '\\n');\r\n\r\n  return this.token(src, true);\r\n};\r\n\r\n/**\r\n * Lexing\r\n */\r\n\r\nLexer.prototype.token = function(src, top, bq) {\r\n  var src = src.replace(/^ +$/gm, '')\r\n    , next\r\n    , loose\r\n    , cap\r\n    , bull\r\n    , b\r\n    , item\r\n    , space\r\n    , i\r\n    , l;\r\n\r\n  while (src) {\r\n    // newline\r\n    if (cap = this.rules.newline.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      if (cap[0].length > 1) {\r\n        this.tokens.push({\r\n          type: 'space'\r\n        });\r\n      }\r\n    }\r\n\r\n    // code\r\n    if (cap = this.rules.code.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      cap = cap[0].replace(/^ {4}/gm, '');\r\n      this.tokens.push({\r\n        type: 'code',\r\n        text: !this.options.pedantic\r\n          ? cap.replace(/\\n+$/, '')\r\n          : cap\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // fences (gfm)\r\n    if (cap = this.rules.fences.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: 'code',\r\n        lang: cap[2],\r\n        text: cap[3] || ''\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // heading\r\n    if (cap = this.rules.heading.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: 'heading',\r\n        depth: cap[1].length,\r\n        text: cap[2]\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // table no leading pipe (gfm)\r\n    if (top && (cap = this.rules.nptable.exec(src))) {\r\n      src = src.substring(cap[0].length);\r\n\r\n      item = {\r\n        type: 'table',\r\n        header: cap[1].replace(/^ *| *\\| *$/g, '').split(/ *\\| */),\r\n        align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\r\n        cells: cap[3].replace(/\\n$/, '').split('\\n')\r\n      };\r\n\r\n      for (i = 0; i < item.align.length; i++) {\r\n        if (/^ *-+: *$/.test(item.align[i])) {\r\n          item.align[i] = 'right';\r\n        } else if (/^ *:-+: *$/.test(item.align[i])) {\r\n          item.align[i] = 'center';\r\n        } else if (/^ *:-+ *$/.test(item.align[i])) {\r\n          item.align[i] = 'left';\r\n        } else {\r\n          item.align[i] = null;\r\n        }\r\n      }\r\n\r\n      for (i = 0; i < item.cells.length; i++) {\r\n        item.cells[i] = item.cells[i].split(/ *\\| */);\r\n      }\r\n\r\n      this.tokens.push(item);\r\n\r\n      continue;\r\n    }\r\n\r\n    // lheading\r\n    if (cap = this.rules.lheading.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: 'heading',\r\n        depth: cap[2] === '=' ? 1 : 2,\r\n        text: cap[1]\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // hr\r\n    if (cap = this.rules.hr.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: 'hr'\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // blockquote\r\n    if (cap = this.rules.blockquote.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n\r\n      this.tokens.push({\r\n        type: 'blockquote_start'\r\n      });\r\n\r\n      cap = cap[0].replace(/^ *> ?/gm, '');\r\n\r\n      // Pass `top` to keep the current\r\n      // \"toplevel\" state. This is exactly\r\n      // how markdown.pl works.\r\n      this.token(cap, top, true);\r\n\r\n      this.tokens.push({\r\n        type: 'blockquote_end'\r\n      });\r\n\r\n      continue;\r\n    }\r\n\r\n    // list\r\n    if (cap = this.rules.list.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      bull = cap[2];\r\n\r\n      this.tokens.push({\r\n        type: 'list_start',\r\n        ordered: bull.length > 1\r\n      });\r\n\r\n      // Get each top-level item.\r\n      cap = cap[0].match(this.rules.item);\r\n\r\n      next = false;\r\n      l = cap.length;\r\n      i = 0;\r\n\r\n      for (; i < l; i++) {\r\n        item = cap[i];\r\n\r\n        // Remove the list item's bullet\r\n        // so it is seen as the next token.\r\n        space = item.length;\r\n        item = item.replace(/^ *([*+-]|\\d+\\.) +/, '');\r\n\r\n        // Outdent whatever the\r\n        // list item contains. Hacky.\r\n        if (~item.indexOf('\\n ')) {\r\n          space -= item.length;\r\n          item = !this.options.pedantic\r\n            ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')\r\n            : item.replace(/^ {1,4}/gm, '');\r\n        }\r\n\r\n        // Determine whether the next list item belongs here.\r\n        // Backpedal if it does not belong in this list.\r\n        if (this.options.smartLists && i !== l - 1) {\r\n          b = block.bullet.exec(cap[i + 1])[0];\r\n          if (bull !== b && !(bull.length > 1 && b.length > 1)) {\r\n            src = cap.slice(i + 1).join('\\n') + src;\r\n            i = l - 1;\r\n          }\r\n        }\r\n\r\n        // Determine whether item is loose or not.\r\n        // Use: /(^|\\n)(?! )[^\\n]+\\n\\n(?!\\s*$)/\r\n        // for discount behavior.\r\n        loose = next || /\\n\\n(?!\\s*$)/.test(item);\r\n        if (i !== l - 1) {\r\n          next = item.charAt(item.length - 1) === '\\n';\r\n          if (!loose) loose = next;\r\n        }\r\n\r\n        this.tokens.push({\r\n          type: loose\r\n            ? 'loose_item_start'\r\n            : 'list_item_start'\r\n        });\r\n\r\n        // Recurse.\r\n        this.token(item, false, bq);\r\n\r\n        this.tokens.push({\r\n          type: 'list_item_end'\r\n        });\r\n      }\r\n\r\n      this.tokens.push({\r\n        type: 'list_end'\r\n      });\r\n\r\n      continue;\r\n    }\r\n\r\n    // html\r\n    if (cap = this.rules.html.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: this.options.sanitize\r\n          ? 'paragraph'\r\n          : 'html',\r\n        pre: !this.options.sanitizer\r\n          && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),\r\n        text: cap[0]\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // def\r\n    if ((!bq && top) && (cap = this.rules.def.exec(src))) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.links[cap[1].toLowerCase()] = {\r\n        href: cap[2],\r\n        title: cap[3]\r\n      };\r\n      continue;\r\n    }\r\n\r\n    // table (gfm)\r\n    if (top && (cap = this.rules.table.exec(src))) {\r\n      src = src.substring(cap[0].length);\r\n\r\n      item = {\r\n        type: 'table',\r\n        header: cap[1].replace(/^ *| *\\| *$/g, '').split(/ *\\| */),\r\n        align: cap[2].replace(/^ *|\\| *$/g, '').split(/ *\\| */),\r\n        cells: cap[3].replace(/(?: *\\| *)?\\n$/, '').split('\\n')\r\n      };\r\n\r\n      for (i = 0; i < item.align.length; i++) {\r\n        if (/^ *-+: *$/.test(item.align[i])) {\r\n          item.align[i] = 'right';\r\n        } else if (/^ *:-+: *$/.test(item.align[i])) {\r\n          item.align[i] = 'center';\r\n        } else if (/^ *:-+ *$/.test(item.align[i])) {\r\n          item.align[i] = 'left';\r\n        } else {\r\n          item.align[i] = null;\r\n        }\r\n      }\r\n\r\n      for (i = 0; i < item.cells.length; i++) {\r\n        item.cells[i] = item.cells[i]\r\n          .replace(/^ *\\| *| *\\| *$/g, '')\r\n          .split(/ *\\| */);\r\n      }\r\n\r\n      this.tokens.push(item);\r\n\r\n      continue;\r\n    }\r\n\r\n    // top-level paragraph\r\n    if (top && (cap = this.rules.paragraph.exec(src))) {\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: 'paragraph',\r\n        text: cap[1].charAt(cap[1].length - 1) === '\\n'\r\n          ? cap[1].slice(0, -1)\r\n          : cap[1]\r\n      });\r\n      continue;\r\n    }\r\n\r\n    // text\r\n    if (cap = this.rules.text.exec(src)) {\r\n      // Top-level should never reach here.\r\n      src = src.substring(cap[0].length);\r\n      this.tokens.push({\r\n        type: 'text',\r\n        text: cap[0]\r\n      });\r\n      continue;\r\n    }\r\n\r\n    if (src) {\r\n      throw new\r\n        Error('Infinite loop on byte: ' + src.charCodeAt(0));\r\n    }\r\n  }\r\n\r\n  return this.tokens;\r\n};\r\n\r\n/**\r\n * Inline-Level Grammar\r\n */\r\n\r\nvar inline = {\r\n  escape: /^\\\\([\\\\`*{}\\[\\]()#+\\-.!_>])/,\r\n  autolink: /^<([^ >]+(@|:\\/)[^ >]+)>/,\r\n  url: noop,\r\n  tag: /^<!--[\\s\\S]*?-->|^<\\/?\\w+(?:\"[^\"]*\"|'[^']*'|[^'\">])*?>/,\r\n  link: /^!?\\[(inside)\\]\\(href\\)/,\r\n  reflink: /^!?\\[(inside)\\]\\s*\\[([^\\]]*)\\]/,\r\n  nolink: /^!?\\[((?:\\[[^\\]]*\\]|[^\\[\\]])*)\\]/,\r\n  strong: /^__([\\s\\S]+?)__(?!_)|^\\*\\*([\\s\\S]+?)\\*\\*(?!\\*)/,\r\n  em: /^\\b_((?:[^_]|__)+?)_\\b|^\\*((?:\\*\\*|[\\s\\S])+?)\\*(?!\\*)/,\r\n  code: /^(`+)\\s*([\\s\\S]*?[^`])\\s*\\1(?!`)/,\r\n  br: /^ {2,}\\n(?!\\s*$)/,\r\n  del: noop,\r\n  text: /^[\\s\\S]+?(?=[\\\\<!\\[_*`]| {2,}\\n|$)/\r\n};\r\n\r\ninline._inside = /(?:\\[[^\\]]*\\]|[^\\[\\]]|\\](?=[^\\[]*\\]))*/;\r\ninline._href = /\\s*<?([\\s\\S]*?)>?(?:\\s+['\"]([\\s\\S]*?)['\"])?\\s*/;\r\n\r\ninline.link = replace(inline.link)\r\n  ('inside', inline._inside)\r\n  ('href', inline._href)\r\n  ();\r\n\r\ninline.reflink = replace(inline.reflink)\r\n  ('inside', inline._inside)\r\n  ();\r\n\r\n/**\r\n * Normal Inline Grammar\r\n */\r\n\r\ninline.normal = merge({}, inline);\r\n\r\n/**\r\n * Pedantic Inline Grammar\r\n */\r\n\r\ninline.pedantic = merge({}, inline.normal, {\r\n  strong: /^__(?=\\S)([\\s\\S]*?\\S)__(?!_)|^\\*\\*(?=\\S)([\\s\\S]*?\\S)\\*\\*(?!\\*)/,\r\n  em: /^_(?=\\S)([\\s\\S]*?\\S)_(?!_)|^\\*(?=\\S)([\\s\\S]*?\\S)\\*(?!\\*)/\r\n});\r\n\r\n/**\r\n * GFM Inline Grammar\r\n */\r\n\r\ninline.gfm = merge({}, inline.normal, {\r\n  escape: replace(inline.escape)('])', '~|])')(),\r\n  url: /^(https?:\\/\\/[^\\s<]+[^<.,:;\"')\\]\\s])/,\r\n  del: /^~~(?=\\S)([\\s\\S]*?\\S)~~/,\r\n  text: replace(inline.text)\r\n    (']|', '~]|')\r\n    ('|', '|https?://|')\r\n    ()\r\n});\r\n\r\n/**\r\n * GFM + Line Breaks Inline Grammar\r\n */\r\n\r\ninline.breaks = merge({}, inline.gfm, {\r\n  br: replace(inline.br)('{2,}', '*')(),\r\n  text: replace(inline.gfm.text)('{2,}', '*')()\r\n});\r\n\r\n/**\r\n * Inline Lexer & Compiler\r\n */\r\n\r\nfunction InlineLexer(links, options) {\r\n  this.options = options || marked.defaults;\r\n  this.links = links;\r\n  this.rules = inline.normal;\r\n  this.renderer = this.options.renderer || new Renderer;\r\n  this.renderer.options = this.options;\r\n\r\n  if (!this.links) {\r\n    throw new\r\n      Error('Tokens array requires a `links` property.');\r\n  }\r\n\r\n  if (this.options.gfm) {\r\n    if (this.options.breaks) {\r\n      this.rules = inline.breaks;\r\n    } else {\r\n      this.rules = inline.gfm;\r\n    }\r\n  } else if (this.options.pedantic) {\r\n    this.rules = inline.pedantic;\r\n  }\r\n}\r\n\r\n/**\r\n * Expose Inline Rules\r\n */\r\n\r\nInlineLexer.rules = inline;\r\n\r\n/**\r\n * Static Lexing/Compiling Method\r\n */\r\n\r\nInlineLexer.output = function(src, links, options) {\r\n  var inline = new InlineLexer(links, options);\r\n  return inline.output(src);\r\n};\r\n\r\n/**\r\n * Lexing/Compiling\r\n */\r\n\r\nInlineLexer.prototype.output = function(src) {\r\n  var out = ''\r\n    , link\r\n    , text\r\n    , href\r\n    , cap;\r\n\r\n  while (src) {\r\n    // escape\r\n    if (cap = this.rules.escape.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += cap[1];\r\n      continue;\r\n    }\r\n\r\n    // autolink\r\n    if (cap = this.rules.autolink.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      if (cap[2] === '@') {\r\n        text = cap[1].charAt(6) === ':'\r\n          ? this.mangle(cap[1].substring(7))\r\n          : this.mangle(cap[1]);\r\n        href = this.mangle('mailto:') + text;\r\n      } else {\r\n        text = escape(cap[1]);\r\n        href = text;\r\n      }\r\n      out += this.renderer.link(href, null, text);\r\n      continue;\r\n    }\r\n\r\n    // url (gfm)\r\n    if (!this.inLink && (cap = this.rules.url.exec(src))) {\r\n      src = src.substring(cap[0].length);\r\n      text = escape(cap[1]);\r\n      href = text;\r\n      out += this.renderer.link(href, null, text);\r\n      continue;\r\n    }\r\n\r\n    // tag\r\n    if (cap = this.rules.tag.exec(src)) {\r\n      if (!this.inLink && /^<a /i.test(cap[0])) {\r\n        this.inLink = true;\r\n      } else if (this.inLink && /^<\\/a>/i.test(cap[0])) {\r\n        this.inLink = false;\r\n      }\r\n      src = src.substring(cap[0].length);\r\n      out += this.options.sanitize\r\n        ? this.options.sanitizer\r\n          ? this.options.sanitizer(cap[0])\r\n          : escape(cap[0])\r\n        : cap[0]\r\n      continue;\r\n    }\r\n\r\n    // link\r\n    if (cap = this.rules.link.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      this.inLink = true;\r\n      out += this.outputLink(cap, {\r\n        href: cap[2],\r\n        title: cap[3]\r\n      });\r\n      this.inLink = false;\r\n      continue;\r\n    }\r\n\r\n    // reflink, nolink\r\n    if ((cap = this.rules.reflink.exec(src))\r\n        || (cap = this.rules.nolink.exec(src))) {\r\n      src = src.substring(cap[0].length);\r\n      link = (cap[2] || cap[1]).replace(/\\s+/g, ' ');\r\n      link = this.links[link.toLowerCase()];\r\n      if (!link || !link.href) {\r\n        out += cap[0].charAt(0);\r\n        src = cap[0].substring(1) + src;\r\n        continue;\r\n      }\r\n      this.inLink = true;\r\n      out += this.outputLink(cap, link);\r\n      this.inLink = false;\r\n      continue;\r\n    }\r\n\r\n    // strong\r\n    if (cap = this.rules.strong.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += this.renderer.strong(this.output(cap[2] || cap[1]));\r\n      continue;\r\n    }\r\n\r\n    // em\r\n    if (cap = this.rules.em.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += this.renderer.em(this.output(cap[2] || cap[1]));\r\n      continue;\r\n    }\r\n\r\n    // code\r\n    if (cap = this.rules.code.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += this.renderer.codespan(escape(cap[2], true));\r\n      continue;\r\n    }\r\n\r\n    // br\r\n    if (cap = this.rules.br.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += this.renderer.br();\r\n      continue;\r\n    }\r\n\r\n    // del (gfm)\r\n    if (cap = this.rules.del.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += this.renderer.del(this.output(cap[1]));\r\n      continue;\r\n    }\r\n\r\n    // text\r\n    if (cap = this.rules.text.exec(src)) {\r\n      src = src.substring(cap[0].length);\r\n      out += this.renderer.text(escape(this.smartypants(cap[0])));\r\n      continue;\r\n    }\r\n\r\n    if (src) {\r\n      throw new\r\n        Error('Infinite loop on byte: ' + src.charCodeAt(0));\r\n    }\r\n  }\r\n\r\n  return out;\r\n};\r\n\r\n/**\r\n * Compile Link\r\n */\r\n\r\nInlineLexer.prototype.outputLink = function(cap, link) {\r\n  var href = escape(link.href)\r\n    , title = link.title ? escape(link.title) : null;\r\n\r\n  return cap[0].charAt(0) !== '!'\r\n    ? this.renderer.link(href, title, this.output(cap[1]))\r\n    : this.renderer.image(href, title, escape(cap[1]));\r\n};\r\n\r\n/**\r\n * Smartypants Transformations\r\n */\r\n\r\nInlineLexer.prototype.smartypants = function(text) {\r\n  if (!this.options.smartypants) return text;\r\n  return text\r\n    // em-dashes\r\n    .replace(/---/g, '\\u2014')\r\n    // en-dashes\r\n    .replace(/--/g, '\\u2013')\r\n    // opening singles\r\n    .replace(/(^|[-\\u2014/(\\[{\"\\s])'/g, '$1\\u2018')\r\n    // closing singles & apostrophes\r\n    .replace(/'/g, '\\u2019')\r\n    // opening doubles\r\n    .replace(/(^|[-\\u2014/(\\[{\\u2018\\s])\"/g, '$1\\u201c')\r\n    // closing doubles\r\n    .replace(/\"/g, '\\u201d')\r\n    // ellipses\r\n    .replace(/\\.{3}/g, '\\u2026');\r\n};\r\n\r\n/**\r\n * Mangle Links\r\n */\r\n\r\nInlineLexer.prototype.mangle = function(text) {\r\n  if (!this.options.mangle) return text;\r\n  var out = ''\r\n    , l = text.length\r\n    , i = 0\r\n    , ch;\r\n\r\n  for (; i < l; i++) {\r\n    ch = text.charCodeAt(i);\r\n    if (Math.random() > 0.5) {\r\n      ch = 'x' + ch.toString(16);\r\n    }\r\n    out += '&#' + ch + ';';\r\n  }\r\n\r\n  return out;\r\n};\r\n\r\n/**\r\n * Renderer\r\n */\r\n\r\nfunction Renderer(options) {\r\n  this.options = options || {};\r\n}\r\n\r\nRenderer.prototype.code = function(code, lang, escaped) {\r\n  if (this.options.highlight) {\r\n    var out = this.options.highlight(code, lang);\r\n    if (out != null && out !== code) {\r\n      escaped = true;\r\n      code = out;\r\n    }\r\n  }\r\n\r\n  if (!lang) {\r\n    return '<pre><code>'\r\n      + (escaped ? code : escape(code, true))\r\n      + '\\n</code></pre>';\r\n  }\r\n\r\n  return '<pre><code class=\"'\r\n    + this.options.langPrefix\r\n    + escape(lang, true)\r\n    + '\">'\r\n    + (escaped ? code : escape(code, true))\r\n    + '\\n</code></pre>\\n';\r\n};\r\n\r\nRenderer.prototype.blockquote = function(quote) {\r\n  return '<blockquote>\\n' + quote + '</blockquote>\\n';\r\n};\r\n\r\nRenderer.prototype.html = function(html) {\r\n  return html;\r\n};\r\n\r\nRenderer.prototype.heading = function(text, level, raw) {\r\n  return '<h'\r\n    + level\r\n    + ' id=\"'\r\n    + this.options.headerPrefix\r\n    + raw.toLowerCase().replace(/[^\\w]+/g, '-')\r\n    + '\">'\r\n    + text\r\n    + '</h'\r\n    + level\r\n    + '>\\n';\r\n};\r\n\r\nRenderer.prototype.hr = function() {\r\n  return this.options.xhtml ? '<hr/>\\n' : '<hr>\\n';\r\n};\r\n\r\nRenderer.prototype.list = function(body, ordered) {\r\n  var type = ordered ? 'ol' : 'ul';\r\n  return '<' + type + '>\\n' + body + '</' + type + '>\\n';\r\n};\r\n\r\nRenderer.prototype.listitem = function(text) {\r\n  return '<li>' + text + '</li>\\n';\r\n};\r\n\r\nRenderer.prototype.paragraph = function(text) {\r\n  return '<p>' + text + '</p>\\n';\r\n};\r\n\r\nRenderer.prototype.table = function(header, body) {\r\n  return '<table>\\n'\r\n    + '<thead>\\n'\r\n    + header\r\n    + '</thead>\\n'\r\n    + '<tbody>\\n'\r\n    + body\r\n    + '</tbody>\\n'\r\n    + '</table>\\n';\r\n};\r\n\r\nRenderer.prototype.tablerow = function(content) {\r\n  return '<tr>\\n' + content + '</tr>\\n';\r\n};\r\n\r\nRenderer.prototype.tablecell = function(content, flags) {\r\n  var type = flags.header ? 'th' : 'td';\r\n  var tag = flags.align\r\n    ? '<' + type + ' style=\"text-align:' + flags.align + '\">'\r\n    : '<' + type + '>';\r\n  return tag + content + '</' + type + '>\\n';\r\n};\r\n\r\n// span level renderer\r\nRenderer.prototype.strong = function(text) {\r\n  return '<strong>' + text + '</strong>';\r\n};\r\n\r\nRenderer.prototype.em = function(text) {\r\n  return '<em>' + text + '</em>';\r\n};\r\n\r\nRenderer.prototype.codespan = function(text) {\r\n  return '<code>' + text + '</code>';\r\n};\r\n\r\nRenderer.prototype.br = function() {\r\n  return this.options.xhtml ? '<br/>' : '<br>';\r\n};\r\n\r\nRenderer.prototype.del = function(text) {\r\n  return '<del>' + text + '</del>';\r\n};\r\n\r\nRenderer.prototype.link = function(href, title, text) {\r\n  if (this.options.sanitize) {\r\n    try {\r\n      var prot = decodeURIComponent(unescape(href))\r\n        .replace(/[^\\w:]/g, '')\r\n        .toLowerCase();\r\n    } catch (e) {\r\n      return '';\r\n    }\r\n    if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0) {\r\n      return '';\r\n    }\r\n  }\r\n  var out = '<a href=\"' + href + '\"';\r\n  if (title) {\r\n    out += ' title=\"' + title + '\"';\r\n  }\r\n  out += '>' + text + '</a>';\r\n  return out;\r\n};\r\n\r\nRenderer.prototype.image = function(href, title, text) {\r\n  var out = '<img src=\"' + href + '\" alt=\"' + text + '\"';\r\n  if (title) {\r\n    out += ' title=\"' + title + '\"';\r\n  }\r\n  out += this.options.xhtml ? '/>' : '>';\r\n  return out;\r\n};\r\n\r\nRenderer.prototype.text = function(text) {\r\n  return text;\r\n};\r\n\r\n/**\r\n * Parsing & Compiling\r\n */\r\n\r\nfunction Parser(options) {\r\n  this.tokens = [];\r\n  this.token = null;\r\n  this.options = options || marked.defaults;\r\n  this.options.renderer = this.options.renderer || new Renderer;\r\n  this.renderer = this.options.renderer;\r\n  this.renderer.options = this.options;\r\n}\r\n\r\n/**\r\n * Static Parse Method\r\n */\r\n\r\nParser.parse = function(src, options, renderer) {\r\n  var parser = new Parser(options, renderer);\r\n  return parser.parse(src);\r\n};\r\n\r\n/**\r\n * Parse Loop\r\n */\r\n\r\nParser.prototype.parse = function(src) {\r\n  this.inline = new InlineLexer(src.links, this.options, this.renderer);\r\n  this.tokens = src.reverse();\r\n\r\n  var out = '';\r\n  while (this.next()) {\r\n    out += this.tok();\r\n  }\r\n\r\n  return out;\r\n};\r\n\r\n/**\r\n * Next Token\r\n */\r\n\r\nParser.prototype.next = function() {\r\n  return this.token = this.tokens.pop();\r\n};\r\n\r\n/**\r\n * Preview Next Token\r\n */\r\n\r\nParser.prototype.peek = function() {\r\n  return this.tokens[this.tokens.length - 1] || 0;\r\n};\r\n\r\n/**\r\n * Parse Text Tokens\r\n */\r\n\r\nParser.prototype.parseText = function() {\r\n  var body = this.token.text;\r\n\r\n  while (this.peek().type === 'text') {\r\n    body += '\\n' + this.next().text;\r\n  }\r\n\r\n  return this.inline.output(body);\r\n};\r\n\r\n/**\r\n * Parse Current Token\r\n */\r\n\r\nParser.prototype.tok = function() {\r\n  switch (this.token.type) {\r\n    case 'space': {\r\n      return '';\r\n    }\r\n    case 'hr': {\r\n      return this.renderer.hr();\r\n    }\r\n    case 'heading': {\r\n      return this.renderer.heading(\r\n        this.inline.output(this.token.text),\r\n        this.token.depth,\r\n        this.token.text);\r\n    }\r\n    case 'code': {\r\n      return this.renderer.code(this.token.text,\r\n        this.token.lang,\r\n        this.token.escaped);\r\n    }\r\n    case 'table': {\r\n      var header = ''\r\n        , body = ''\r\n        , i\r\n        , row\r\n        , cell\r\n        , flags\r\n        , j;\r\n\r\n      // header\r\n      cell = '';\r\n      for (i = 0; i < this.token.header.length; i++) {\r\n        flags = { header: true, align: this.token.align[i] };\r\n        cell += this.renderer.tablecell(\r\n          this.inline.output(this.token.header[i]),\r\n          { header: true, align: this.token.align[i] }\r\n        );\r\n      }\r\n      header += this.renderer.tablerow(cell);\r\n\r\n      for (i = 0; i < this.token.cells.length; i++) {\r\n        row = this.token.cells[i];\r\n\r\n        cell = '';\r\n        for (j = 0; j < row.length; j++) {\r\n          cell += this.renderer.tablecell(\r\n            this.inline.output(row[j]),\r\n            { header: false, align: this.token.align[j] }\r\n          );\r\n        }\r\n\r\n        body += this.renderer.tablerow(cell);\r\n      }\r\n      return this.renderer.table(header, body);\r\n    }\r\n    case 'blockquote_start': {\r\n      var body = '';\r\n\r\n      while (this.next().type !== 'blockquote_end') {\r\n        body += this.tok();\r\n      }\r\n\r\n      return this.renderer.blockquote(body);\r\n    }\r\n    case 'list_start': {\r\n      var body = ''\r\n        , ordered = this.token.ordered;\r\n\r\n      while (this.next().type !== 'list_end') {\r\n        body += this.tok();\r\n      }\r\n\r\n      return this.renderer.list(body, ordered);\r\n    }\r\n    case 'list_item_start': {\r\n      var body = '';\r\n\r\n      while (this.next().type !== 'list_item_end') {\r\n        body += this.token.type === 'text'\r\n          ? this.parseText()\r\n          : this.tok();\r\n      }\r\n\r\n      return this.renderer.listitem(body);\r\n    }\r\n    case 'loose_item_start': {\r\n      var body = '';\r\n\r\n      while (this.next().type !== 'list_item_end') {\r\n        body += this.tok();\r\n      }\r\n\r\n      return this.renderer.listitem(body);\r\n    }\r\n    case 'html': {\r\n      var html = !this.token.pre && !this.options.pedantic\r\n        ? this.inline.output(this.token.text)\r\n        : this.token.text;\r\n      return this.renderer.html(html);\r\n    }\r\n    case 'paragraph': {\r\n      return this.renderer.paragraph(this.inline.output(this.token.text));\r\n    }\r\n    case 'text': {\r\n      return this.renderer.paragraph(this.parseText());\r\n    }\r\n  }\r\n};\r\n\r\n/**\r\n * Helpers\r\n */\r\n\r\nfunction escape(html, encode) {\r\n  return html\r\n    .replace(!encode ? /&(?!#?\\w+;)/g : /&/g, '&amp;')\r\n    .replace(/</g, '&lt;')\r\n    .replace(/>/g, '&gt;')\r\n    .replace(/\"/g, '&quot;')\r\n    .replace(/'/g, '&#39;');\r\n}\r\n\r\nfunction unescape(html) {\r\n  return html.replace(/&([#\\w]+);/g, function(_, n) {\r\n    n = n.toLowerCase();\r\n    if (n === 'colon') return ':';\r\n    if (n.charAt(0) === '#') {\r\n      return n.charAt(1) === 'x'\r\n        ? String.fromCharCode(parseInt(n.substring(2), 16))\r\n        : String.fromCharCode(+n.substring(1));\r\n    }\r\n    return '';\r\n  });\r\n}\r\n\r\nfunction replace(regex, opt) {\r\n  regex = regex.source;\r\n  opt = opt || '';\r\n  return function self(name, val) {\r\n    if (!name) return new RegExp(regex, opt);\r\n    val = val.source || val;\r\n    val = val.replace(/(^|[^\\[])\\^/g, '$1');\r\n    regex = regex.replace(name, val);\r\n    return self;\r\n  };\r\n}\r\n\r\nfunction noop() {}\r\nnoop.exec = noop;\r\n\r\nfunction merge(obj) {\r\n  var i = 1\r\n    , target\r\n    , key;\r\n\r\n  for (; i < arguments.length; i++) {\r\n    target = arguments[i];\r\n    for (key in target) {\r\n      if (Object.prototype.hasOwnProperty.call(target, key)) {\r\n        obj[key] = target[key];\r\n      }\r\n    }\r\n  }\r\n\r\n  return obj;\r\n}\r\n\r\n\r\n/**\r\n * Marked\r\n */\r\n\r\nfunction marked(src, opt, callback) {\r\n  if (callback || typeof opt === 'function') {\r\n    if (!callback) {\r\n      callback = opt;\r\n      opt = null;\r\n    }\r\n\r\n    opt = merge({}, marked.defaults, opt || {});\r\n\r\n    var highlight = opt.highlight\r\n      , tokens\r\n      , pending\r\n      , i = 0;\r\n\r\n    try {\r\n      tokens = Lexer.lex(src, opt)\r\n    } catch (e) {\r\n      return callback(e);\r\n    }\r\n\r\n    pending = tokens.length;\r\n\r\n    var done = function(err) {\r\n      if (err) {\r\n        opt.highlight = highlight;\r\n        return callback(err);\r\n      }\r\n\r\n      var out;\r\n\r\n      try {\r\n        out = Parser.parse(tokens, opt);\r\n      } catch (e) {\r\n        err = e;\r\n      }\r\n\r\n      opt.highlight = highlight;\r\n\r\n      return err\r\n        ? callback(err)\r\n        : callback(null, out);\r\n    };\r\n\r\n    if (!highlight || highlight.length < 3) {\r\n      return done();\r\n    }\r\n\r\n    delete opt.highlight;\r\n\r\n    if (!pending) return done();\r\n\r\n    for (; i < tokens.length; i++) {\r\n      (function(token) {\r\n        if (token.type !== 'code') {\r\n          return --pending || done();\r\n        }\r\n        return highlight(token.text, token.lang, function(err, code) {\r\n          if (err) return done(err);\r\n          if (code == null || code === token.text) {\r\n            return --pending || done();\r\n          }\r\n          token.text = code;\r\n          token.escaped = true;\r\n          --pending || done();\r\n        });\r\n      })(tokens[i]);\r\n    }\r\n\r\n    return;\r\n  }\r\n  try {\r\n    if (opt) opt = merge({}, marked.defaults, opt);\r\n    return Parser.parse(Lexer.lex(src, opt), opt);\r\n  } catch (e) {\r\n    e.message += '\\nPlease report this to https://github.com/chjj/marked.';\r\n    if ((opt || marked.defaults).silent) {\r\n      return '<p>An error occured:</p><pre>'\r\n        + escape(e.message + '', true)\r\n        + '</pre>';\r\n    }\r\n    throw e;\r\n  }\r\n}\r\n\r\n/**\r\n * Options\r\n */\r\n\r\nmarked.options =\r\nmarked.setOptions = function(opt) {\r\n  merge(marked.defaults, opt);\r\n  return marked;\r\n};\r\n\r\nmarked.defaults = {\r\n  gfm: true,\r\n  tables: true,\r\n  breaks: false,\r\n  pedantic: false,\r\n  sanitize: false,\r\n  sanitizer: null,\r\n  mangle: true,\r\n  smartLists: false,\r\n  silent: false,\r\n  highlight: null,\r\n  langPrefix: 'lang-',\r\n  smartypants: false,\r\n  headerPrefix: '',\r\n  renderer: new Renderer,\r\n  xhtml: false\r\n};\r\n\r\n/**\r\n * Expose\r\n */\r\n\r\nmarked.Parser = Parser;\r\nmarked.parser = Parser.parse;\r\n\r\nmarked.Renderer = Renderer;\r\n\r\nmarked.Lexer = Lexer;\r\nmarked.lexer = Lexer.lex;\r\n\r\nmarked.InlineLexer = InlineLexer;\r\nmarked.inlineLexer = InlineLexer.output;\r\n\r\nmarked.parse = marked;\r\n\r\nif (typeof module !== 'undefined' && typeof exports === 'object') {\r\n  module.exports = marked;\r\n} else if (typeof define === 'function' && define.amd) {\r\n  define(function() { return marked; });\r\n} else {\r\n  this.marked = marked;\r\n}\r\n\r\n}).call(function() {\r\n  return this || (typeof window !== 'undefined' ? window : global);\r\n}());\r\n","// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: http://codemirror.net/LICENSE\n\nvar CodeMirror = require(\"codemirror\");\n\nCodeMirror.commands.tabAndIndentMarkdownList = function (cm) {\n\tvar ranges = cm.listSelections();\n\tvar pos = ranges[0].head;\n\tvar eolState = cm.getStateAfter(pos.line);\n\tvar inList = eolState.list !== false;\n\n\tif (inList) {\n\t\tcm.execCommand(\"indentMore\");\n\t\treturn;\n\t}\n\n\tif (cm.options.indentWithTabs) {\n\t\tcm.execCommand(\"insertTab\");\n\t}\n\telse {\n\t\tvar spaces = Array(cm.options.tabSize + 1).join(\" \");\n\t\tcm.replaceSelection(spaces);\n\t}\n};\n\nCodeMirror.commands.shiftTabAndUnindentMarkdownList = function (cm) {\n\tvar ranges = cm.listSelections();\n\tvar pos = ranges[0].head;\n\tvar eolState = cm.getStateAfter(pos.line);\n\tvar inList = eolState.list !== false;\n\n\tif (inList) {\n\t\tcm.execCommand(\"indentLess\");\n\t\treturn;\n\t}\n\n\tif (cm.options.indentWithTabs) {\n\t\tcm.execCommand(\"insertTab\");\n\t}\n\telse {\n\t\tvar spaces = Array(cm.options.tabSize + 1).join(\" \");\n\t\tcm.replaceSelection(spaces);\n\t}\n};\n","/*global require,module*/\r\n\"use strict\";\r\nvar CodeMirror = require(\"codemirror\");\r\nrequire(\"codemirror/addon/edit/continuelist.js\");\r\nrequire(\"./codemirror/tablist\");\r\nrequire(\"codemirror/addon/display/fullscreen.js\");\r\nrequire(\"codemirror/mode/markdown/markdown.js\");\r\nrequire(\"codemirror/addon/mode/overlay.js\");\r\nrequire(\"codemirror/mode/gfm/gfm.js\");\r\nrequire(\"codemirror/mode/xml/xml.js\");\r\nrequire(\"spell-checker\");\r\nvar marked = require(\"marked\");\r\n\r\n\r\nvar isMac = /Mac/.test(navigator.platform);\r\n\r\nvar shortcuts = {\r\n\t\"Cmd-B\": toggleBold,\r\n\t\"Cmd-I\": toggleItalic,\r\n\t\"Cmd-K\": drawLink,\r\n\t\"Cmd-H\": toggleHeadingSmaller,\r\n\t\"Shift-Cmd-H\": toggleHeadingBigger,\r\n\t\"Cmd-Alt-I\": drawImage,\r\n\t\"Cmd-'\": toggleBlockquote,\r\n\t\"Cmd-Alt-L\": toggleOrderedList,\r\n\t\"Cmd-L\": toggleUnorderedList,\r\n\t\"Cmd-Alt-C\": toggleCodeBlock,\r\n\t\"Cmd-P\": togglePreview\r\n};\r\n\r\n\r\n/**\r\n * Fix shortcut. Mac use Command, others use Ctrl.\r\n */\r\nfunction fixShortcut(name) {\r\n\tif(isMac) {\r\n\t\tname = name.replace(\"Ctrl\", \"Cmd\");\r\n\t} else {\r\n\t\tname = name.replace(\"Cmd\", \"Ctrl\");\r\n\t}\r\n\treturn name;\r\n}\r\n\r\n\r\n/**\r\n * Create icon element for toolbar.\r\n */\r\nfunction createIcon(options, enableTooltips) {\r\n\toptions = options || {};\r\n\tvar el = document.createElement(\"a\");\r\n\tenableTooltips = (enableTooltips == undefined) ? true : enableTooltips;\r\n\r\n\tif(options.title && enableTooltips) {\r\n\t\tel.title = options.title;\r\n\r\n\t\tif(isMac) {\r\n\t\t\tel.title = el.title.replace(\"Ctrl\", \"⌘\");\r\n\t\t\tel.title = el.title.replace(\"Alt\", \"⌥\");\r\n\t\t}\r\n\t}\r\n\r\n\tel.className = options.className;\r\n\treturn el;\r\n}\r\n\r\nfunction createSep() {\r\n\tvar el = document.createElement(\"i\");\r\n\tel.className = \"separator\";\r\n\tel.innerHTML = \"|\";\r\n\treturn el;\r\n}\r\n\r\n\r\n/**\r\n * The state of CodeMirror at the given position.\r\n */\r\nfunction getState(cm, pos) {\r\n\tpos = pos || cm.getCursor(\"start\");\r\n\tvar stat = cm.getTokenAt(pos);\r\n\tif(!stat.type) return {};\r\n\r\n\tvar types = stat.type.split(\" \");\r\n\r\n\tvar ret = {},\r\n\t\tdata, text;\r\n\tfor(var i = 0; i < types.length; i++) {\r\n\t\tdata = types[i];\r\n\t\tif(data === \"strong\") {\r\n\t\t\tret.bold = true;\r\n\t\t} else if(data === \"variable-2\") {\r\n\t\t\ttext = cm.getLine(pos.line);\r\n\t\t\tif(/^\\s*\\d+\\.\\s/.test(text)) {\r\n\t\t\t\tret[\"ordered-list\"] = true;\r\n\t\t\t} else {\r\n\t\t\t\tret[\"unordered-list\"] = true;\r\n\t\t\t}\r\n\t\t} else if(data === \"atom\") {\r\n\t\t\tret.quote = true;\r\n\t\t} else if(data === \"em\") {\r\n\t\t\tret.italic = true;\r\n\t\t} else if(data === \"quote\") {\r\n\t\t\tret.quote = true;\r\n\t\t} else if(data === \"strikethrough\") {\r\n\t\t\tret.strikethrough = true;\r\n\t\t} else if(data === \"comment\") {\r\n\t\t\tret.code = true;\r\n\t\t}\r\n\t}\r\n\treturn ret;\r\n}\r\n\r\n\r\n// Saved overflow setting\r\nvar saved_overflow = \"\";\r\n\r\n/**\r\n * Toggle full screen of the editor.\r\n */\r\nfunction toggleFullScreen(editor) {\r\n\t// Set fullscreen\r\n\tvar cm = editor.codemirror;\r\n\tcm.setOption(\"fullScreen\", !cm.getOption(\"fullScreen\"));\r\n\r\n\r\n\t// Prevent scrolling on body during fullscreen active\r\n\tif(cm.getOption(\"fullScreen\")) {\r\n\t\tsaved_overflow = document.body.style.overflow;\r\n\t\tdocument.body.style.overflow = \"hidden\";\r\n\t} else {\r\n\t\tdocument.body.style.overflow = saved_overflow;\r\n\t}\r\n\r\n\r\n\t// Update toolbar class\r\n\tvar wrap = cm.getWrapperElement();\r\n\r\n\tif(!/fullscreen/.test(wrap.previousSibling.className)) {\r\n\t\twrap.previousSibling.className += \" fullscreen\";\r\n\t} else {\r\n\t\twrap.previousSibling.className = wrap.previousSibling.className.replace(/\\s*fullscreen\\b/, \"\");\r\n\t}\r\n\r\n\r\n\t// Update toolbar button\r\n\tvar toolbarButton = editor.toolbarElements.fullscreen;\r\n\r\n\tif(!/active/.test(toolbarButton.className)) {\r\n\t\ttoolbarButton.className += \" active\";\r\n\t} else {\r\n\t\ttoolbarButton.className = toolbarButton.className.replace(/\\s*active\\s*/g, \"\");\r\n\t}\r\n\r\n\r\n\t// Hide side by side if needed\r\n\tvar sidebyside = cm.getWrapperElement().nextSibling;\r\n\tif(/editor-preview-active-side/.test(sidebyside.className))\r\n\t\ttoggleSideBySide(editor);\r\n}\r\n\r\n\r\n/**\r\n * Action for toggling bold.\r\n */\r\nfunction toggleBold(editor) {\r\n\t_toggleBlock(editor, \"bold\", \"**\");\r\n}\r\n\r\n\r\n/**\r\n * Action for toggling italic.\r\n */\r\nfunction toggleItalic(editor) {\r\n\t_toggleBlock(editor, \"italic\", \"*\");\r\n}\r\n\r\n\r\n/**\r\n * Action for toggling strikethrough.\r\n */\r\nfunction toggleStrikethrough(editor) {\r\n\t_toggleBlock(editor, \"strikethrough\", \"~~\");\r\n}\r\n\r\n/**\r\n * Action for toggling code block.\r\n */\r\nfunction toggleCodeBlock(editor) {\r\n\t_toggleBlock(editor, \"code\", \"```\\r\\n\", \"\\r\\n```\");\r\n}\r\n\r\n/**\r\n * Action for toggling blockquote.\r\n */\r\nfunction toggleBlockquote(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleLine(cm, \"quote\");\r\n}\r\n\r\n/**\r\n * Action for toggling heading size: normal -> h1 -> h2 -> h3 -> h4 -> h5 -> h6 -> normal\r\n */\r\nfunction toggleHeadingSmaller(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleHeading(cm, \"smaller\");\r\n}\r\n\r\n/**\r\n * Action for toggling heading size: normal -> h6 -> h5 -> h4 -> h3 -> h2 -> h1 -> normal\r\n */\r\nfunction toggleHeadingBigger(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleHeading(cm, \"bigger\");\r\n}\r\n\r\n/**\r\n * Action for toggling heading size 1\r\n */\r\nfunction toggleHeading1(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleHeading(cm, undefined, 1);\r\n}\r\n\r\n/**\r\n * Action for toggling heading size 2\r\n */\r\nfunction toggleHeading2(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleHeading(cm, undefined, 2);\r\n}\r\n\r\n/**\r\n * Action for toggling heading size 3\r\n */\r\nfunction toggleHeading3(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleHeading(cm, undefined, 3);\r\n}\r\n\r\n\r\n/**\r\n * Action for toggling ul.\r\n */\r\nfunction toggleUnorderedList(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleLine(cm, \"unordered-list\");\r\n}\r\n\r\n\r\n/**\r\n * Action for toggling ol.\r\n */\r\nfunction toggleOrderedList(editor) {\r\n\tvar cm = editor.codemirror;\r\n\t_toggleLine(cm, \"ordered-list\");\r\n}\r\n\r\n\r\n/**\r\n * Action for drawing a link.\r\n */\r\nfunction drawLink(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tvar stat = getState(cm);\r\n\t_replaceSelection(cm, stat.link, \"[\", \"](http://)\");\r\n}\r\n\r\n\r\n/**\r\n * Action for drawing an img.\r\n */\r\nfunction drawImage(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tvar stat = getState(cm);\r\n\t_replaceSelection(cm, stat.image, \"![](http://\", \")\");\r\n}\r\n\r\n\r\n/**\r\n * Action for drawing a horizontal rule.\r\n */\r\nfunction drawHorizontalRule(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tvar stat = getState(cm);\r\n\t_replaceSelection(cm, stat.image, \"\", \"\\n\\n-----\\n\\n\");\r\n}\r\n\r\n\r\n/**\r\n * Undo action.\r\n */\r\nfunction undo(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tcm.undo();\r\n\tcm.focus();\r\n}\r\n\r\n\r\n/**\r\n * Redo action.\r\n */\r\nfunction redo(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tcm.redo();\r\n\tcm.focus();\r\n}\r\n\r\n\r\n/**\r\n * Toggle side by side preview\r\n */\r\nfunction toggleSideBySide(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tvar wrapper = cm.getWrapperElement();\r\n\tvar preview = wrapper.nextSibling;\r\n\tvar toolbarButton = editor.toolbarElements[\"side-by-side\"];\r\n\r\n\tif(/editor-preview-active-side/.test(preview.className)) {\r\n\t\tpreview.className = preview.className.replace(\r\n\t\t\t/\\s*editor-preview-active-side\\s*/g, \"\"\r\n\t\t);\r\n\t\ttoolbarButton.className = toolbarButton.className.replace(/\\s*active\\s*/g, \"\");\r\n\t\twrapper.className = wrapper.className.replace(/\\s*CodeMirror-sided\\s*/g, \" \");\r\n\t} else {\r\n\t\t/* When the preview button is clicked for the first time,\r\n\t\t * give some time for the transition from editor.css to fire and the view to slide from right to left,\r\n\t\t * instead of just appearing.\r\n\t\t */\r\n\t\tsetTimeout(function() {\r\n\t\t\tif(!cm.getOption(\"fullScreen\"))\r\n\t\t\t\ttoggleFullScreen(editor);\r\n\t\t\tpreview.className += \" editor-preview-active-side\";\r\n\t\t}, 1);\r\n\t\ttoolbarButton.className += \" active\";\r\n\t\twrapper.className += \" CodeMirror-sided\";\r\n\t}\r\n\r\n\t// Hide normal preview if active\r\n\tvar previewNormal = wrapper.lastChild;\r\n\tif(/editor-preview-active/.test(previewNormal.className)) {\r\n\t\tpreviewNormal.className = previewNormal.className.replace(\r\n\t\t\t/\\s*editor-preview-active\\s*/g, \"\"\r\n\t\t);\r\n\t\tvar toolbar = editor.toolbarElements.preview;\r\n\t\tvar toolbar_div = wrapper.previousSibling;\r\n\t\ttoolbar.className = toolbar.className.replace(/\\s*active\\s*/g, \"\");\r\n\t\ttoolbar_div.className = toolbar_div.className.replace(/\\s*disabled-for-preview*/g, \"\");\r\n\t}\r\n\r\n\t// Start preview with the current text\r\n\tpreview.innerHTML = editor.options.previewRender(editor.value(), preview);\r\n\r\n\t// Updates preview\r\n\tcm.on(\"update\", function() {\r\n\t\tpreview.innerHTML = editor.options.previewRender(editor.value(), preview);\r\n\t});\r\n}\r\n\r\n\r\n/**\r\n * Preview action.\r\n */\r\nfunction togglePreview(editor) {\r\n\tvar cm = editor.codemirror;\r\n\tvar wrapper = cm.getWrapperElement();\r\n\tvar toolbar_div = wrapper.previousSibling;\r\n\tvar toolbar = editor.toolbarElements.preview;\r\n\tvar preview = wrapper.lastChild;\r\n\tif(!preview || !/editor-preview/.test(preview.className)) {\r\n\t\tpreview = document.createElement(\"div\");\r\n\t\tpreview.className = \"editor-preview\";\r\n\t\twrapper.appendChild(preview);\r\n\t}\r\n\tif(/editor-preview-active/.test(preview.className)) {\r\n\t\tpreview.className = preview.className.replace(\r\n\t\t\t/\\s*editor-preview-active\\s*/g, \"\"\r\n\t\t);\r\n\t\ttoolbar.className = toolbar.className.replace(/\\s*active\\s*/g, \"\");\r\n\t\ttoolbar_div.className = toolbar_div.className.replace(/\\s*disabled-for-preview*/g, \"\");\r\n\t} else {\r\n\t\t/* When the preview button is clicked for the first time,\r\n\t\t * give some time for the transition from editor.css to fire and the view to slide from right to left,\r\n\t\t * instead of just appearing.\r\n\t\t */\r\n\t\tsetTimeout(function() {\r\n\t\t\tpreview.className += \" editor-preview-active\";\r\n\t\t}, 1);\r\n\t\ttoolbar.className += \" active\";\r\n\t\ttoolbar_div.className += \" disabled-for-preview\";\r\n\t}\r\n\tpreview.innerHTML = editor.options.previewRender(editor.value(), preview);\r\n\r\n\t// Turn off side by side if needed\r\n\tvar sidebyside = cm.getWrapperElement().nextSibling;\r\n\tif(/editor-preview-active-side/.test(sidebyside.className))\r\n\t\ttoggleSideBySide(editor);\r\n}\r\n\r\nfunction _replaceSelection(cm, active, start, end) {\r\n\tif(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))\r\n\t\treturn;\r\n\r\n\tvar text;\r\n\tvar startPoint = cm.getCursor(\"start\");\r\n\tvar endPoint = cm.getCursor(\"end\");\r\n\tif(active) {\r\n\t\ttext = cm.getLine(startPoint.line);\r\n\t\tstart = text.slice(0, startPoint.ch);\r\n\t\tend = text.slice(startPoint.ch);\r\n\t\tcm.replaceRange(start + end, {\r\n\t\t\tline: startPoint.line,\r\n\t\t\tch: 0\r\n\t\t});\r\n\t} else {\r\n\t\ttext = cm.getSelection();\r\n\t\tcm.replaceSelection(start + text + end);\r\n\r\n\t\tstartPoint.ch += start.length;\r\n\t\tif(startPoint !== endPoint) {\r\n\t\t\tendPoint.ch += start.length;\r\n\t\t}\r\n\t}\r\n\tcm.setSelection(startPoint, endPoint);\r\n\tcm.focus();\r\n}\r\n\r\n\r\nfunction _toggleHeading(cm, direction, size) {\r\n\tif(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))\r\n\t\treturn;\r\n\r\n\tvar startPoint = cm.getCursor(\"start\");\r\n\tvar endPoint = cm.getCursor(\"end\");\r\n\tfor(var i = startPoint.line; i <= endPoint.line; i++) {\r\n\t\t(function(i) {\r\n\t\t\tvar text = cm.getLine(i);\r\n\t\t\tvar currHeadingLevel = text.search(/[^#]/);\r\n\r\n\t\t\tif(direction !== undefined) {\r\n\t\t\t\tif(currHeadingLevel <= 0) {\r\n\t\t\t\t\tif(direction == \"bigger\") {\r\n\t\t\t\t\t\ttext = \"###### \" + text;\r\n\t\t\t\t\t} else {\r\n\t\t\t\t\t\ttext = \"# \" + text;\r\n\t\t\t\t\t}\r\n\t\t\t\t} else if(currHeadingLevel == 6 && direction == \"smaller\") {\r\n\t\t\t\t\ttext = text.substr(7);\r\n\t\t\t\t} else if(currHeadingLevel == 1 && direction == \"bigger\") {\r\n\t\t\t\t\ttext = text.substr(2);\r\n\t\t\t\t} else {\r\n\t\t\t\t\tif(direction == \"bigger\") {\r\n\t\t\t\t\t\ttext = text.substr(1);\r\n\t\t\t\t\t} else {\r\n\t\t\t\t\t\ttext = \"#\" + text;\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t} else {\r\n\t\t\t\tif(size == 1) {\r\n\t\t\t\t\tif(currHeadingLevel <= 0) {\r\n\t\t\t\t\t\ttext = \"# \" + text;\r\n\t\t\t\t\t} else if(currHeadingLevel == size) {\r\n\t\t\t\t\t\ttext = text.substr(currHeadingLevel + 1);\r\n\t\t\t\t\t} else {\r\n\t\t\t\t\t\ttext = \"# \" + text.substr(currHeadingLevel + 1);\r\n\t\t\t\t\t}\r\n\t\t\t\t} else if(size == 2) {\r\n\t\t\t\t\tif(currHeadingLevel <= 0) {\r\n\t\t\t\t\t\ttext = \"## \" + text;\r\n\t\t\t\t\t} else if(currHeadingLevel == size) {\r\n\t\t\t\t\t\ttext = text.substr(currHeadingLevel + 1);\r\n\t\t\t\t\t} else {\r\n\t\t\t\t\t\ttext = \"## \" + text.substr(currHeadingLevel + 1);\r\n\t\t\t\t\t}\r\n\t\t\t\t} else {\r\n\t\t\t\t\tif(currHeadingLevel <= 0) {\r\n\t\t\t\t\t\ttext = \"### \" + text;\r\n\t\t\t\t\t} else if(currHeadingLevel == size) {\r\n\t\t\t\t\t\ttext = text.substr(currHeadingLevel + 1);\r\n\t\t\t\t\t} else {\r\n\t\t\t\t\t\ttext = \"### \" + text.substr(currHeadingLevel + 1);\r\n\t\t\t\t\t}\r\n\t\t\t\t}\r\n\t\t\t}\r\n\r\n\t\t\tcm.replaceRange(text, {\r\n\t\t\t\tline: i,\r\n\t\t\t\tch: 0\r\n\t\t\t}, {\r\n\t\t\t\tline: i,\r\n\t\t\t\tch: 99999999999999\r\n\t\t\t});\r\n\t\t})(i);\r\n\t}\r\n\tcm.focus();\r\n}\r\n\r\n\r\nfunction _toggleLine(cm, name) {\r\n\tif(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))\r\n\t\treturn;\r\n\r\n\tvar stat = getState(cm);\r\n\tvar startPoint = cm.getCursor(\"start\");\r\n\tvar endPoint = cm.getCursor(\"end\");\r\n\tvar repl = {\r\n\t\t\"quote\": /^(\\s*)\\>\\s+/,\r\n\t\t\"unordered-list\": /^(\\s*)(\\*|\\-|\\+)\\s+/,\r\n\t\t\"ordered-list\": /^(\\s*)\\d+\\.\\s+/\r\n\t};\r\n\tvar map = {\r\n\t\t\"quote\": \"> \",\r\n\t\t\"unordered-list\": \"* \",\r\n\t\t\"ordered-list\": \"1. \"\r\n\t};\r\n\tfor(var i = startPoint.line; i <= endPoint.line; i++) {\r\n\t\t(function(i) {\r\n\t\t\tvar text = cm.getLine(i);\r\n\t\t\tif(stat[name]) {\r\n\t\t\t\ttext = text.replace(repl[name], \"$1\");\r\n\t\t\t} else {\r\n\t\t\t\ttext = map[name] + text;\r\n\t\t\t}\r\n\t\t\tcm.replaceRange(text, {\r\n\t\t\t\tline: i,\r\n\t\t\t\tch: 0\r\n\t\t\t}, {\r\n\t\t\t\tline: i,\r\n\t\t\t\tch: 99999999999999\r\n\t\t\t});\r\n\t\t})(i);\r\n\t}\r\n\tcm.focus();\r\n}\r\n\r\nfunction _toggleBlock(editor, type, start_chars, end_chars) {\r\n\tif(/editor-preview-active/.test(editor.codemirror.getWrapperElement().lastChild.className))\r\n\t\treturn;\r\n\r\n\tend_chars = (typeof end_chars === \"undefined\") ? start_chars : end_chars;\r\n\tvar cm = editor.codemirror;\r\n\tvar stat = getState(cm);\r\n\r\n\tvar text;\r\n\tvar start = start_chars;\r\n\tvar end = end_chars;\r\n\r\n\tvar startPoint = cm.getCursor(\"start\");\r\n\tvar endPoint = cm.getCursor(\"end\");\r\n\r\n\tif(stat[type]) {\r\n\t\ttext = cm.getLine(startPoint.line);\r\n\t\tstart = text.slice(0, startPoint.ch);\r\n\t\tend = text.slice(startPoint.ch);\r\n\t\tif(type == \"bold\") {\r\n\t\t\tstart = start.replace(/(\\*\\*|__)(?![\\s\\S]*(\\*\\*|__))/, \"\");\r\n\t\t\tend = end.replace(/(\\*\\*|__)/, \"\");\r\n\t\t} else if(type == \"italic\") {\r\n\t\t\tstart = start.replace(/(\\*|_)(?![\\s\\S]*(\\*|_))/, \"\");\r\n\t\t\tend = end.replace(/(\\*|_)/, \"\");\r\n\t\t} else if(type == \"strikethrough\") {\r\n\t\t\tstart = start.replace(/(\\*\\*|~~)(?![\\s\\S]*(\\*\\*|~~))/, \"\");\r\n\t\t\tend = end.replace(/(\\*\\*|~~)/, \"\");\r\n\t\t}\r\n\t\tcm.replaceRange(start + end, {\r\n\t\t\tline: startPoint.line,\r\n\t\t\tch: 0\r\n\t\t}, {\r\n\t\t\tline: startPoint.line,\r\n\t\t\tch: 99999999999999\r\n\t\t});\r\n\r\n\t\tif(type == \"bold\" || type == \"strikethrough\") {\r\n\t\t\tstartPoint.ch -= 2;\r\n\t\t\tif(startPoint !== endPoint) {\r\n\t\t\t\tendPoint.ch -= 2;\r\n\t\t\t}\r\n\t\t} else if(type == \"italic\") {\r\n\t\t\tstartPoint.ch -= 1;\r\n\t\t\tif(startPoint !== endPoint) {\r\n\t\t\t\tendPoint.ch -= 1;\r\n\t\t\t}\r\n\t\t}\r\n\t} else {\r\n\t\ttext = cm.getSelection();\r\n\t\tif(type == \"bold\") {\r\n\t\t\ttext = text.split(\"**\").join(\"\");\r\n\t\t\ttext = text.split(\"__\").join(\"\");\r\n\t\t} else if(type == \"italic\") {\r\n\t\t\ttext = text.split(\"*\").join(\"\");\r\n\t\t\ttext = text.split(\"_\").join(\"\");\r\n\t\t} else if(type == \"strikethrough\") {\r\n\t\t\ttext = text.split(\"~~\").join(\"\");\r\n\t\t}\r\n\t\tcm.replaceSelection(start + text + end);\r\n\r\n\t\tstartPoint.ch += start_chars.length;\r\n\t\tendPoint.ch = startPoint.ch + text.length;\r\n\t}\r\n\r\n\tcm.setSelection(startPoint, endPoint);\r\n\tcm.focus();\r\n}\r\n\r\n\r\n/* The right word count in respect for CJK. */\r\nfunction wordCount(data) {\r\n\tvar pattern = /[a-zA-Z0-9_\\u0392-\\u03c9]+|[\\u4E00-\\u9FFF\\u3400-\\u4dbf\\uf900-\\ufaff\\u3040-\\u309f\\uac00-\\ud7af]+/g;\r\n\tvar m = data.match(pattern);\r\n\tvar count = 0;\r\n\tif(m === null) return count;\r\n\tfor(var i = 0; i < m.length; i++) {\r\n\t\tif(m[i].charCodeAt(0) >= 0x4E00) {\r\n\t\t\tcount += m[i].length;\r\n\t\t} else {\r\n\t\t\tcount += 1;\r\n\t\t}\r\n\t}\r\n\treturn count;\r\n}\r\n\r\n\r\nvar toolbarBuiltInButtons = {\r\n\t\"bold\": {\r\n\t\tname: \"bold\",\r\n\t\taction: toggleBold,\r\n\t\tclassName: \"fa fa-bold\",\r\n\t\ttitle: \"Bold (Ctrl+B)\"\r\n\t},\r\n\t\"italic\": {\r\n\t\tname: \"italic\",\r\n\t\taction: toggleItalic,\r\n\t\tclassName: \"fa fa-italic\",\r\n\t\ttitle: \"Italic (Ctrl+I)\"\r\n\t},\r\n\t\"strikethrough\": {\r\n\t\tname: \"strikethrough\",\r\n\t\taction: toggleStrikethrough,\r\n\t\tclassName: \"fa fa-strikethrough\",\r\n\t\ttitle: \"Strikethrough\"\r\n\t},\r\n\t\"heading\": {\r\n\t\tname: \"heading\",\r\n\t\taction: toggleHeadingSmaller,\r\n\t\tclassName: \"fa fa-header\",\r\n\t\ttitle: \"Heading (Ctrl+H)\"\r\n\t},\r\n\t\"heading-smaller\": {\r\n\t\tname: \"heading-smaller\",\r\n\t\taction: toggleHeadingSmaller,\r\n\t\tclassName: \"fa fa-header fa-header-x fa-header-smaller\",\r\n\t\ttitle: \"Smaller Heading (Ctrl+H)\"\r\n\t},\r\n\t\"heading-bigger\": {\r\n\t\tname: \"heading-bigger\",\r\n\t\taction: toggleHeadingBigger,\r\n\t\tclassName: \"fa fa-header fa-header-x fa-header-bigger\",\r\n\t\ttitle: \"Bigger Heading (Shift+Ctrl+H)\"\r\n\t},\r\n\t\"heading-1\": {\r\n\t\tname: \"heading-1\",\r\n\t\taction: toggleHeading1,\r\n\t\tclassName: \"fa fa-header fa-header-x fa-header-1\",\r\n\t\ttitle: \"Big Heading\"\r\n\t},\r\n\t\"heading-2\": {\r\n\t\tname: \"heading-2\",\r\n\t\taction: toggleHeading2,\r\n\t\tclassName: \"fa fa-header fa-header-x fa-header-2\",\r\n\t\ttitle: \"Medium Heading\"\r\n\t},\r\n\t\"heading-3\": {\r\n\t\tname: \"heading-3\",\r\n\t\taction: toggleHeading3,\r\n\t\tclassName: \"fa fa-header fa-header-x fa-header-3\",\r\n\t\ttitle: \"Small Heading\"\r\n\t},\r\n\t\"code\": {\r\n\t\tname: \"code\",\r\n\t\taction: toggleCodeBlock,\r\n\t\tclassName: \"fa fa-code\",\r\n\t\ttitle: \"Code (Ctrl+Alt+C)\"\r\n\t},\r\n\t\"quote\": {\r\n\t\tname: \"quote\",\r\n\t\taction: toggleBlockquote,\r\n\t\tclassName: \"fa fa-quote-left\",\r\n\t\ttitle: \"Quote (Ctrl+')\"\r\n\t},\r\n\t\"unordered-list\": {\r\n\t\tname: \"unordered-list\",\r\n\t\taction: toggleUnorderedList,\r\n\t\tclassName: \"fa fa-list-ul\",\r\n\t\ttitle: \"Generic List (Ctrl+L)\"\r\n\t},\r\n\t\"ordered-list\": {\r\n\t\tname: \"ordered-list\",\r\n\t\taction: toggleOrderedList,\r\n\t\tclassName: \"fa fa-list-ol\",\r\n\t\ttitle: \"Numbered List (Ctrl+Alt+L)\"\r\n\t},\r\n\t\"link\": {\r\n\t\tname: \"link\",\r\n\t\taction: drawLink,\r\n\t\tclassName: \"fa fa-link\",\r\n\t\ttitle: \"Create Link (Ctrl+K)\"\r\n\t},\r\n\t\"image\": {\r\n\t\tname: \"image\",\r\n\t\taction: drawImage,\r\n\t\tclassName: \"fa fa-picture-o\",\r\n\t\ttitle: \"Insert Image (Ctrl+Alt+I)\"\r\n\t},\r\n\t\"horizontal-rule\": {\r\n\t\tname: \"horizontal-rule\",\r\n\t\taction: drawHorizontalRule,\r\n\t\tclassName: \"fa fa-minus\",\r\n\t\ttitle: \"Insert Horizontal Line\"\r\n\t},\r\n\t\"preview\": {\r\n\t\tname: \"preview\",\r\n\t\taction: togglePreview,\r\n\t\tclassName: \"fa fa-eye no-disable\",\r\n\t\ttitle: \"Toggle Preview (Ctrl+P)\"\r\n\t},\r\n\t\"side-by-side\": {\r\n\t\tname: \"side-by-side\",\r\n\t\taction: toggleSideBySide,\r\n\t\tclassName: \"fa fa-columns no-disable no-mobile\",\r\n\t\ttitle: \"Toggle Side by Side (F9)\"\r\n\t},\r\n\t\"fullscreen\": {\r\n\t\tname: \"fullscreen\",\r\n\t\taction: toggleFullScreen,\r\n\t\tclassName: \"fa fa-arrows-alt no-disable no-mobile\",\r\n\t\ttitle: \"Toggle Fullscreen (F11)\"\r\n\t},\r\n\t\"guide\": {\r\n\t\tname: \"guide\",\r\n\t\taction: \"http://nextstepwebs.github.io/simplemde-markdown-editor/markdown-guide\",\r\n\t\tclassName: \"fa fa-question-circle\",\r\n\t\ttitle: \"Markdown Guide\"\r\n\t}\r\n};\r\n\r\n\r\n/**\r\n * Interface of SimpleMDE.\r\n */\r\nfunction SimpleMDE(options) {\r\n\t// Handle options parameter\r\n\toptions = options || {};\r\n\r\n\r\n\t// Used later to refer to it\"s parent\r\n\toptions.parent = this;\r\n\r\n\r\n\t// Check if Font Awesome needs to be auto downloaded\r\n\tvar autoDownloadFA = true;\r\n\r\n\tif(options.autoDownloadFontAwesome === false) {\r\n\t\tautoDownloadFA = false;\r\n\t}\r\n\r\n\tif(options.autoDownloadFontAwesome !== true) {\r\n\t\tvar styleSheets = document.styleSheets;\r\n\t\tfor(var i = 0; i < styleSheets.length; i++) {\r\n\t\t\tif(!styleSheets[i].href)\r\n\t\t\t\tcontinue;\r\n\r\n\t\t\tif(styleSheets[i].href.indexOf(\"//maxcdn.bootstrapcdn.com/font-awesome/\") > -1) {\r\n\t\t\t\tautoDownloadFA = false;\r\n\t\t\t}\r\n\t\t}\r\n\t}\r\n\r\n\tif(autoDownloadFA) {\r\n\t\tvar link = document.createElement(\"link\");\r\n\t\tlink.rel = \"stylesheet\";\r\n\t\tlink.href = \"https://maxcdn.bootstrapcdn.com/font-awesome/latest/css/font-awesome.min.css\";\r\n\t\tdocument.getElementsByTagName(\"head\")[0].appendChild(link);\r\n\t}\r\n\r\n\r\n\t// Find the textarea to use\r\n\tif(options.element) {\r\n\t\tthis.element = options.element;\r\n\t} else if(options.element === null) {\r\n\t\t// This means that the element option was specified, but no element was found\r\n\t\tconsole.log(\"SimpleMDE: Error. No element was found.\");\r\n\t\treturn;\r\n\t}\r\n\r\n\r\n\t// Handle toolbar and status bar\r\n\tif(options.toolbar !== false)\r\n\t\toptions.toolbar = options.toolbar || SimpleMDE.toolbar;\r\n\r\n\tif(!options.hasOwnProperty(\"status\")) {\r\n\t\toptions.status = [\"autosave\", \"lines\", \"words\", \"cursor\"];\r\n\t}\r\n\r\n\r\n\t// Add default preview rendering function\r\n\tif(!options.previewRender) {\r\n\t\toptions.previewRender = function(plainText) {\r\n\t\t\t// Note: \"this\" refers to the options object\r\n\t\t\treturn this.parent.markdown(plainText);\r\n\t\t};\r\n\t}\r\n\r\n\r\n\t// Set default options for parsing config\r\n\toptions.parsingConfig = options.parsingConfig || {};\r\n\r\n\r\n\t// Update this options\r\n\tthis.options = options;\r\n\r\n\r\n\t// Auto render\r\n\tthis.render();\r\n\r\n\r\n\t// The codemirror component is only available after rendering\r\n\t// so, the setter for the initialValue can only run after\r\n\t// the element has been rendered\r\n\tif(options.initialValue) {\r\n\t\tthis.value(options.initialValue);\r\n\t}\r\n}\r\n\r\n/**\r\n * Default toolbar elements.\r\n */\r\nSimpleMDE.toolbar = [\"bold\", \"italic\", \"heading\", \"|\", \"quote\", \"unordered-list\", \"ordered-list\", \"|\", \"link\", \"image\", \"|\", \"preview\", \"side-by-side\", \"fullscreen\", \"guide\"];\r\n\r\n/**\r\n * Default markdown render.\r\n */\r\nSimpleMDE.prototype.markdown = function(text) {\r\n\tif(marked) {\r\n\t\t// Initialize\r\n\t\tvar markedOptions = {};\r\n\r\n\r\n\t\t// Update options\r\n\t\tif(this.options && this.options.renderingConfig && this.options.renderingConfig.singleLineBreaks !== false) {\r\n\t\t\tmarkedOptions.breaks = true;\r\n\t\t}\r\n\r\n\t\tif(this.options && this.options.renderingConfig && this.options.renderingConfig.codeSyntaxHighlighting === true && window.hljs) {\r\n\t\t\tmarkedOptions.highlight = function(code) {\r\n\t\t\t\treturn window.hljs.highlightAuto(code).value;\r\n\t\t\t};\r\n\t\t}\r\n\r\n\r\n\t\t// Set options\r\n\t\tmarked.setOptions(markedOptions);\r\n\r\n\r\n\t\t// Return\r\n\t\treturn marked(text);\r\n\t}\r\n};\r\n\r\n/**\r\n * Render editor to the given element.\r\n */\r\nSimpleMDE.prototype.render = function(el) {\r\n\tif(!el) {\r\n\t\tel = this.element || document.getElementsByTagName(\"textarea\")[0];\r\n\t}\r\n\r\n\tif(this._rendered && this._rendered === el) {\r\n\t\t// Already rendered.\r\n\t\treturn;\r\n\t}\r\n\r\n\tthis.element = el;\r\n\tvar options = this.options;\r\n\r\n\tvar self = this;\r\n\tvar keyMaps = {};\r\n\r\n\tfor(var key in shortcuts) {\r\n\t\t(function(key) {\r\n\t\t\tkeyMaps[fixShortcut(key)] = function() {\r\n\t\t\t\tshortcuts[key](self);\r\n\t\t\t};\r\n\t\t})(key);\r\n\t}\r\n\r\n\tkeyMaps[\"Enter\"] = \"newlineAndIndentContinueMarkdownList\";\r\n\tkeyMaps[\"Tab\"] = \"tabAndIndentMarkdownList\";\r\n\tkeyMaps[\"Shift-Tab\"] = \"shiftTabAndUnindentMarkdownList\";\r\n\tkeyMaps[\"F11\"] = function() {\r\n\t\ttoggleFullScreen(self);\r\n\t};\r\n\tkeyMaps[\"F9\"] = function() {\r\n\t\ttoggleSideBySide(self);\r\n\t};\r\n\tkeyMaps[\"Esc\"] = function(cm) {\r\n\t\tif(cm.getOption(\"fullScreen\")) toggleFullScreen(self);\r\n\t};\r\n\r\n\tvar mode, backdrop;\r\n\tif(options.spellChecker !== false) {\r\n\t\tmode = \"spell-checker\";\r\n\t\tbackdrop = options.parsingConfig;\r\n\t\tbackdrop.name = \"gfm\";\r\n\t\tbackdrop.gitHubSpice = false;\r\n\t} else {\r\n\t\tmode = options.parsingConfig;\r\n\t\tmode.name = \"gfm\";\r\n\t\tmode.gitHubSpice = false;\r\n\t}\r\n\r\n\tthis.codemirror = CodeMirror.fromTextArea(el, {\r\n\t\tmode: mode,\r\n\t\tbackdrop: backdrop,\r\n\t\ttheme: \"paper\",\r\n\t\ttabSize: (options.tabSize != undefined) ? options.tabSize : 2,\r\n\t\tindentUnit: (options.tabSize != undefined) ? options.tabSize : 2,\r\n\t\tindentWithTabs: (options.indentWithTabs === false) ? false : true,\r\n\t\tlineNumbers: false,\r\n\t\tautofocus: (options.autofocus === true) ? true : false,\r\n\t\textraKeys: keyMaps,\r\n\t\tlineWrapping: (options.lineWrapping === false) ? false : true,\r\n\t\tallowDropFileTypes: [\"text/plain\"]\r\n\t});\r\n\r\n\tif(options.toolbar !== false) {\r\n\t\tthis.createToolbar();\r\n\t}\r\n\tif(options.status !== false) {\r\n\t\tthis.createStatusbar();\r\n\t}\r\n\tif(options.autosave != undefined && options.autosave.enabled === true) {\r\n\t\tthis.autosave();\r\n\t}\r\n\r\n\tthis.createSideBySide();\r\n\r\n\tthis._rendered = this.element;\r\n};\r\n\r\nSimpleMDE.prototype.autosave = function() {\r\n\tvar content = this.value();\r\n\tvar simplemde = this;\r\n\r\n\tif(this.options.autosave.unique_id == undefined || this.options.autosave.unique_id == \"\") {\r\n\t\tconsole.log(\"SimpleMDE: You must set a unique_id to use the autosave feature\");\r\n\t\treturn;\r\n\t}\r\n\r\n\tif(simplemde.element.form != null && simplemde.element.form != undefined) {\r\n\t\tsimplemde.element.form.addEventListener(\"submit\", function() {\r\n\t\t\tlocalStorage.setItem(simplemde.options.autosave.unique_id, \"\");\r\n\t\t});\r\n\t}\r\n\r\n\tif(this.options.autosave.loaded !== true) {\r\n\t\tif(localStorage.getItem(this.options.autosave.unique_id) != null)\r\n\t\t\tthis.codemirror.setValue(localStorage.getItem(this.options.autosave.unique_id));\r\n\r\n\t\tthis.options.autosave.loaded = true;\r\n\t}\r\n\r\n\tif(localStorage) {\r\n\t\tlocalStorage.setItem(this.options.autosave.unique_id, content);\r\n\t}\r\n\r\n\tvar el = document.getElementById(\"autosaved\");\r\n\tif(el != null && el != undefined && el != \"\") {\r\n\t\tvar d = new Date();\r\n\t\tvar hh = d.getHours();\r\n\t\tvar m = d.getMinutes();\r\n\t\tvar dd = \"am\";\r\n\t\tvar h = hh;\r\n\t\tif(h >= 12) {\r\n\t\t\th = hh - 12;\r\n\t\t\tdd = \"pm\";\r\n\t\t}\r\n\t\tif(h == 0) {\r\n\t\t\th = 12;\r\n\t\t}\r\n\t\tm = m < 10 ? \"0\" + m : m;\r\n\r\n\t\tel.innerHTML = \"Autosaved: \" + h + \":\" + m + \" \" + dd;\r\n\t}\r\n\r\n\tsetTimeout(function() {\r\n\t\tsimplemde.autosave();\r\n\t}, this.options.autosave.delay || 10000);\r\n};\r\n\r\nSimpleMDE.prototype.createSideBySide = function() {\r\n\tvar cm = this.codemirror;\r\n\tvar wrapper = cm.getWrapperElement();\r\n\tvar preview = wrapper.nextSibling;\r\n\r\n\tif(!preview || !/editor-preview-side/.test(preview.className)) {\r\n\t\tpreview = document.createElement(\"div\");\r\n\t\tpreview.className = \"editor-preview-side\";\r\n\t\twrapper.parentNode.insertBefore(preview, wrapper.nextSibling);\r\n\t}\r\n\r\n\t// Syncs scroll  editor -> preview\r\n\tvar cScroll = false;\r\n\tvar pScroll = false;\r\n\tcm.on(\"scroll\", function(v) {\r\n\t\tif(cScroll) {\r\n\t\t\tcScroll = false;\r\n\t\t\treturn;\r\n\t\t}\r\n\t\tpScroll = true;\r\n\t\tvar height = v.getScrollInfo().height - v.getScrollInfo().clientHeight;\r\n\t\tvar ratio = parseFloat(v.getScrollInfo().top) / height;\r\n\t\tvar move = (preview.scrollHeight - preview.clientHeight) * ratio;\r\n\t\tpreview.scrollTop = move;\r\n\t});\r\n\r\n\t// Syncs scroll  preview -> editor\r\n\tpreview.onscroll = function() {\r\n\t\tif(pScroll) {\r\n\t\t\tpScroll = false;\r\n\t\t\treturn;\r\n\t\t}\r\n\t\tcScroll = true;\r\n\t\tvar height = preview.scrollHeight - preview.clientHeight;\r\n\t\tvar ratio = parseFloat(preview.scrollTop) / height;\r\n\t\tvar move = (cm.getScrollInfo().height - cm.getScrollInfo().clientHeight) * ratio;\r\n\t\tcm.scrollTo(0, move);\r\n\t};\r\n\treturn true;\r\n};\r\n\r\nSimpleMDE.prototype.createToolbar = function(items) {\r\n\titems = items || this.options.toolbar;\r\n\r\n\tif(!items || items.length === 0) {\r\n\t\treturn;\r\n\t}\r\n\tvar i;\r\n\tfor(i = 0; i < items.length; i++) {\r\n\t\tif(toolbarBuiltInButtons[items[i]] != undefined) {\r\n\t\t\titems[i] = toolbarBuiltInButtons[items[i]];\r\n\t\t}\r\n\t}\r\n\r\n\tvar bar = document.createElement(\"div\");\r\n\tbar.className = \"editor-toolbar\";\r\n\r\n\tvar self = this;\r\n\r\n\tvar toolbar_data = {};\r\n\tself.toolbar = items;\r\n\r\n\tfor(i = 0; i < items.length; i++) {\r\n\t\tif(items[i].name == \"guide\" && self.options.toolbarGuideIcon === false)\r\n\t\t\tcontinue;\r\n\r\n\t\tif(self.options.hideIcons && self.options.hideIcons.indexOf(items[i].name) != -1)\r\n\t\t\tcontinue;\r\n\r\n\t\t(function(item) {\r\n\t\t\tvar el;\r\n\t\t\tif(item === \"|\") {\r\n\t\t\t\tel = createSep();\r\n\t\t\t} else {\r\n\t\t\t\tel = createIcon(item, self.options.toolbarTips);\r\n\t\t\t}\r\n\r\n\t\t\t// bind events, special for info\r\n\t\t\tif(item.action) {\r\n\t\t\t\tif(typeof item.action === \"function\") {\r\n\t\t\t\t\tel.onclick = function() {\r\n\t\t\t\t\t\titem.action(self);\r\n\t\t\t\t\t};\r\n\t\t\t\t} else if(typeof item.action === \"string\") {\r\n\t\t\t\t\tel.href = item.action;\r\n\t\t\t\t\tel.target = \"_blank\";\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\ttoolbar_data[item.name || item] = el;\r\n\t\t\tbar.appendChild(el);\r\n\t\t})(items[i]);\r\n\t}\r\n\r\n\tself.toolbarElements = toolbar_data;\r\n\r\n\tvar cm = this.codemirror;\r\n\tcm.on(\"cursorActivity\", function() {\r\n\t\tvar stat = getState(cm);\r\n\r\n\t\tfor(var key in toolbar_data) {\r\n\t\t\t(function(key) {\r\n\t\t\t\tvar el = toolbar_data[key];\r\n\t\t\t\tif(stat[key]) {\r\n\t\t\t\t\tel.className += \" active\";\r\n\t\t\t\t} else if(key != \"fullscreen\" && key != \"side-by-side\") {\r\n\t\t\t\t\tel.className = el.className.replace(/\\s*active\\s*/g, \"\");\r\n\t\t\t\t}\r\n\t\t\t})(key);\r\n\t\t}\r\n\t});\r\n\r\n\tvar cmWrapper = cm.getWrapperElement();\r\n\tcmWrapper.parentNode.insertBefore(bar, cmWrapper);\r\n\treturn bar;\r\n};\r\n\r\nSimpleMDE.prototype.createStatusbar = function(status) {\r\n\tstatus = status || this.options.status;\r\n\tvar options = this.options;\r\n\r\n\tif(!status || status.length === 0) return;\r\n\r\n\tvar bar = document.createElement(\"div\");\r\n\tbar.className = \"editor-statusbar\";\r\n\r\n\tvar pos, cm = this.codemirror;\r\n\tfor(var i = 0; i < status.length; i++) {\r\n\t\t(function(name) {\r\n\t\t\tvar el = document.createElement(\"span\");\r\n\t\t\tel.className = name;\r\n\t\t\tif(name === \"words\") {\r\n\t\t\t\tel.innerHTML = \"0\";\r\n\t\t\t\tcm.on(\"update\", function() {\r\n\t\t\t\t\tel.innerHTML = wordCount(cm.getValue());\r\n\t\t\t\t});\r\n\t\t\t} else if(name === \"lines\") {\r\n\t\t\t\tel.innerHTML = \"0\";\r\n\t\t\t\tcm.on(\"update\", function() {\r\n\t\t\t\t\tel.innerHTML = cm.lineCount();\r\n\t\t\t\t});\r\n\t\t\t} else if(name === \"cursor\") {\r\n\t\t\t\tel.innerHTML = \"0:0\";\r\n\t\t\t\tcm.on(\"cursorActivity\", function() {\r\n\t\t\t\t\tpos = cm.getCursor();\r\n\t\t\t\t\tel.innerHTML = pos.line + \":\" + pos.ch;\r\n\t\t\t\t});\r\n\t\t\t} else if(name === \"autosave\") {\r\n\t\t\t\tif(options.autosave != undefined && options.autosave.enabled === true) {\r\n\t\t\t\t\tel.setAttribute(\"id\", \"autosaved\");\r\n\t\t\t\t}\r\n\t\t\t}\r\n\t\t\tbar.appendChild(el);\r\n\t\t})(status[i]);\r\n\t}\r\n\r\n\tvar cmWrapper = this.codemirror.getWrapperElement();\r\n\tcmWrapper.parentNode.insertBefore(bar, cmWrapper.nextSibling);\r\n\treturn bar;\r\n};\r\n\r\n/**\r\n * Get or set the text content.\r\n */\r\nSimpleMDE.prototype.value = function(val) {\r\n\tif(val === undefined) {\r\n\t\treturn this.codemirror.getValue();\r\n\t} else {\r\n\t\tthis.codemirror.getDoc().setValue(val);\r\n\t\treturn this;\r\n\t}\r\n};\r\n\r\n\r\n/**\r\n * Bind static methods for exports.\r\n */\r\nSimpleMDE.toggleBold = toggleBold;\r\nSimpleMDE.toggleItalic = toggleItalic;\r\nSimpleMDE.toggleStrikethrough = toggleStrikethrough;\r\nSimpleMDE.toggleBlockquote = toggleBlockquote;\r\nSimpleMDE.toggleHeadingSmaller = toggleHeadingSmaller;\r\nSimpleMDE.toggleHeadingBigger = toggleHeadingBigger;\r\nSimpleMDE.toggleHeading1 = toggleHeading1;\r\nSimpleMDE.toggleHeading2 = toggleHeading2;\r\nSimpleMDE.toggleHeading3 = toggleHeading3;\r\nSimpleMDE.toggleCodeBlock = toggleCodeBlock;\r\nSimpleMDE.toggleUnorderedList = toggleUnorderedList;\r\nSimpleMDE.toggleOrderedList = toggleOrderedList;\r\nSimpleMDE.drawLink = drawLink;\r\nSimpleMDE.drawImage = drawImage;\r\nSimpleMDE.drawHorizontalRule = drawHorizontalRule;\r\nSimpleMDE.undo = undo;\r\nSimpleMDE.redo = redo;\r\nSimpleMDE.togglePreview = togglePreview;\r\nSimpleMDE.toggleSideBySide = toggleSideBySide;\r\nSimpleMDE.toggleFullScreen = toggleFullScreen;\r\n\r\n/**\r\n * Bind instance methods for exports.\r\n */\r\nSimpleMDE.prototype.toggleBold = function() {\r\n\ttoggleBold(this);\r\n};\r\nSimpleMDE.prototype.toggleItalic = function() {\r\n\ttoggleItalic(this);\r\n};\r\nSimpleMDE.prototype.toggleStrikethrough = function() {\r\n\ttoggleStrikethrough(this);\r\n};\r\nSimpleMDE.prototype.toggleBlockquote = function() {\r\n\ttoggleBlockquote(this);\r\n};\r\nSimpleMDE.prototype.toggleHeadingSmaller = function() {\r\n\ttoggleHeadingSmaller(this);\r\n};\r\nSimpleMDE.prototype.toggleHeadingBigger = function() {\r\n\ttoggleHeadingBigger(this);\r\n};\r\nSimpleMDE.prototype.toggleHeading1 = function() {\r\n\ttoggleHeading1(this);\r\n};\r\nSimpleMDE.prototype.toggleHeading2 = function() {\r\n\ttoggleHeading2(this);\r\n};\r\nSimpleMDE.prototype.toggleHeading3 = function() {\r\n\ttoggleHeading3(this);\r\n};\r\nSimpleMDE.prototype.toggleCodeBlock = function() {\r\n\ttoggleCodeBlock(this);\r\n};\r\nSimpleMDE.prototype.toggleUnorderedList = function() {\r\n\ttoggleUnorderedList(this);\r\n};\r\nSimpleMDE.prototype.toggleOrderedList = function() {\r\n\ttoggleOrderedList(this);\r\n};\r\nSimpleMDE.prototype.drawLink = function() {\r\n\tdrawLink(this);\r\n};\r\nSimpleMDE.prototype.drawImage = function() {\r\n\tdrawImage(this);\r\n};\r\nSimpleMDE.prototype.drawHorizontalRule = function() {\r\n\tdrawHorizontalRule(this);\r\n};\r\nSimpleMDE.prototype.undo = function() {\r\n\tundo(this);\r\n};\r\nSimpleMDE.prototype.redo = function() {\r\n\tredo(this);\r\n};\r\nSimpleMDE.prototype.togglePreview = function() {\r\n\ttogglePreview(this);\r\n};\r\nSimpleMDE.prototype.toggleSideBySide = function() {\r\n\ttoggleSideBySide(this);\r\n};\r\nSimpleMDE.prototype.toggleFullScreen = function() {\r\n\ttoggleFullScreen(this);\r\n};\r\nmodule.exports = SimpleMDE;\r\n"]}
diff --git a/debug/simplemde.js b/debug/simplemde.js
new file mode 100644
index 0000000..77dd455
--- /dev/null
+++ b/debug/simplemde.js
@@ -0,0 +1,14024 @@
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.SimpleMDE = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o?@[\\]^_`{|}~ ";
+
+
+ // Create the overlay and such
+ var overlay = {
+ token: function(stream, state) {
+ var ch = stream.peek();
+ var word = "";
+
+ if(rx_word.includes(ch)) {
+ stream.next();
+ return null;
+ }
+
+ while((ch = stream.peek()) != null && !rx_word.includes(ch)) {
+ word += ch;
+ stream.next();
+ }
+
+ if(typo && !typo.check(word))
+ return "spell-error"; // CSS class: cm-spell-error
+
+ return null;
+ }
+ };
+
+ var mode = CodeMirror.getMode(
+ config, config.backdrop || "text/plain"
+ );
+
+ return CodeMirror.overlayMode(mode, overlay, true);
+});
+
+
+// Because some browsers don't support this functionality yet
+if(!String.prototype.includes) {
+ String.prototype.includes = function() {'use strict';
+ return String.prototype.indexOf.apply(this, arguments) !== -1;
+ };
+}
+}).call(global, module, undefined, undefined);
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{"C:\\phantomx\\projects\\simplemde-markdown-editor\\node_modules\\codemirror-spell-checker\\src\\js\\typo.js":2,"codemirror":6}],2:[function(require,module,exports){
+(function (global){
+; var __browserify_shim_require__=require;(function browserifyShim(module, exports, require, define, browserify_shim__define__module__export__) {
+'use strict';
+
+/**
+ * Typo is a JavaScript implementation of a spellchecker using hunspell-style
+ * dictionaries.
+ */
+
+/**
+ * Typo constructor.
+ *
+ * @param {String} [dictionary] The locale code of the dictionary being used. e.g.,
+ * "en_US". This is only used to auto-load dictionaries.
+ * @param {String} [affData] The data from the dictionary's .aff file. If omitted
+ * and the first argument is supplied, in "chrome" platform,
+ * the .aff file will be loaded automatically from
+ * lib/typo/dictionaries/[dictionary]/[dictionary].aff
+ * In other platform, it will be loaded from
+ * [setting.path]/dictionaries/[dictionary]/[dictionary].aff
+ * @param {String} [wordsData] The data from the dictionary's .dic file. If omitted,
+ * and the first argument is supplied, in "chrome" platform,
+ * the .dic file will be loaded automatically from
+ * lib/typo/dictionaries/[dictionary]/[dictionary].dic
+ * In other platform, it will be loaded from
+ * [setting.path]/dictionaries/[dictionary]/[dictionary].dic
+ * @param {Object} [settings] Constructor settings. Available properties are:
+ * {String} [platform]: "chrome" for Chrome Extension or other
+ * value for the usual web.
+ * {String} [dictionaryPath]: path to load dictionary from in non-chrome
+ * environment.
+ * {Object} [flags]: flag information.
+ *
+ *
+ * @returns {Typo} A Typo object.
+ */
+
+var Typo = function (dictionary, affData, wordsData, settings) {
+ settings = settings || {};
+
+ /** Determines the method used for auto-loading .aff and .dic files. **/
+ this.platform = settings.platform || "chrome";
+
+ this.dictionary = null;
+
+ this.rules = {};
+ this.dictionaryTable = {};
+
+ this.compoundRules = [];
+ this.compoundRuleCodes = {};
+
+ this.replacementTable = [];
+
+ this.flags = settings.flags || {};
+
+ if (dictionary) {
+ this.dictionary = dictionary;
+
+ if (this.platform == "chrome") {
+ if (!affData) affData = this._readFile(chrome.extension.getURL("lib/typo/dictionaries/" + dictionary + "/" + dictionary + ".aff"));
+ if (!wordsData) wordsData = this._readFile(chrome.extension.getURL("lib/typo/dictionaries/" + dictionary + "/" + dictionary + ".dic"));
+ } else {
+ var path = settings.dictionaryPath || '';
+
+ if (!affData) affData = this._readFile(path + "/" + dictionary + "/" + dictionary + ".aff");
+ if (!wordsData) wordsData = this._readFile(path + "/" + dictionary + "/" + dictionary + ".dic");
+ }
+
+ this.rules = this._parseAFF(affData);
+
+ // Save the rule codes that are used in compound rules.
+ this.compoundRuleCodes = {};
+
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ var rule = this.compoundRules[i];
+
+ for (var j = 0, _jlen = rule.length; j < _jlen; j++) {
+ this.compoundRuleCodes[rule[j]] = [];
+ }
+ }
+
+ // If we add this ONLYINCOMPOUND flag to this.compoundRuleCodes, then _parseDIC
+ // will do the work of saving the list of words that are compound-only.
+ if ("ONLYINCOMPOUND" in this.flags) {
+ this.compoundRuleCodes[this.flags.ONLYINCOMPOUND] = [];
+ }
+
+ this.dictionaryTable = this._parseDIC(wordsData);
+
+ // Get rid of any codes from the compound rule codes that are never used
+ // (or that were special regex characters). Not especially necessary...
+ for (var i in this.compoundRuleCodes) {
+ if (this.compoundRuleCodes[i].length == 0) {
+ delete this.compoundRuleCodes[i];
+ }
+ }
+
+ // Build the full regular expressions for each compound rule.
+ // I have a feeling (but no confirmation yet) that this method of
+ // testing for compound words is probably slow.
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ var ruleText = this.compoundRules[i];
+
+ var expressionText = "";
+
+ for (var j = 0, _jlen = ruleText.length; j < _jlen; j++) {
+ var character = ruleText[j];
+
+ if (character in this.compoundRuleCodes) {
+ expressionText += "(" + this.compoundRuleCodes[character].join("|") + ")";
+ }
+ else {
+ expressionText += character;
+ }
+ }
+
+ this.compoundRules[i] = new RegExp(expressionText, "i");
+ }
+ }
+
+ return this;
+};
+
+Typo.prototype = {
+ /**
+ * Loads a Typo instance from a hash of all of the Typo properties.
+ *
+ * @param object obj A hash of Typo properties, probably gotten from a JSON.parse(JSON.stringify(typo_instance)).
+ */
+
+ load : function (obj) {
+ for (var i in obj) {
+ this[i] = obj[i];
+ }
+
+ return this;
+ },
+
+ /**
+ * Read the contents of a file.
+ *
+ * @param {String} path The path (relative) to the file.
+ * @param {String} [charset="ISO8859-1"] The expected charset of the file
+ * @returns string The file data.
+ */
+
+ _readFile : function (path, charset) {
+ if (!charset) charset = "ISO8859-1";
+
+ var req = new XMLHttpRequest();
+ req.open("GET", path, false);
+
+ if (req.overrideMimeType)
+ req.overrideMimeType("text/plain; charset=" + charset);
+
+ req.send(null);
+
+ return req.responseText;
+ },
+
+ /**
+ * Parse the rules out from a .aff file.
+ *
+ * @param {String} data The contents of the affix file.
+ * @returns object The rules from the file.
+ */
+
+ _parseAFF : function (data) {
+ var rules = {};
+
+ // Remove comment lines
+ data = this._removeAffixComments(data);
+
+ var lines = data.split("\n");
+
+ for (var i = 0, _len = lines.length; i < _len; i++) {
+ var line = lines[i];
+
+ var definitionParts = line.split(/\s+/);
+
+ var ruleType = definitionParts[0];
+
+ if (ruleType == "PFX" || ruleType == "SFX") {
+ var ruleCode = definitionParts[1];
+ var combineable = definitionParts[2];
+ var numEntries = parseInt(definitionParts[3], 10);
+
+ var entries = [];
+
+ for (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {
+ var line = lines[j];
+
+ var lineParts = line.split(/\s+/);
+ var charactersToRemove = lineParts[2];
+
+ var additionParts = lineParts[3].split("/");
+
+ var charactersToAdd = additionParts[0];
+ if (charactersToAdd === "0") charactersToAdd = "";
+
+ var continuationClasses = this.parseRuleCodes(additionParts[1]);
+
+ var regexToMatch = lineParts[4];
+
+ var entry = {};
+ entry.add = charactersToAdd;
+
+ if (continuationClasses.length > 0) entry.continuationClasses = continuationClasses;
+
+ if (regexToMatch !== ".") {
+ if (ruleType === "SFX") {
+ entry.match = new RegExp(regexToMatch + "$");
+ }
+ else {
+ entry.match = new RegExp("^" + regexToMatch);
+ }
+ }
+
+ if (charactersToRemove != "0") {
+ if (ruleType === "SFX") {
+ entry.remove = new RegExp(charactersToRemove + "$");
+ }
+ else {
+ entry.remove = charactersToRemove;
+ }
+ }
+
+ entries.push(entry);
+ }
+
+ rules[ruleCode] = { "type" : ruleType, "combineable" : (combineable == "Y"), "entries" : entries };
+
+ i += numEntries;
+ }
+ else if (ruleType === "COMPOUNDRULE") {
+ var numEntries = parseInt(definitionParts[1], 10);
+
+ for (var j = i + 1, _jlen = i + 1 + numEntries; j < _jlen; j++) {
+ var line = lines[j];
+
+ var lineParts = line.split(/\s+/);
+ this.compoundRules.push(lineParts[1]);
+ }
+
+ i += numEntries;
+ }
+ else if (ruleType === "REP") {
+ var lineParts = line.split(/\s+/);
+
+ if (lineParts.length === 3) {
+ this.replacementTable.push([ lineParts[1], lineParts[2] ]);
+ }
+ }
+ else {
+ // ONLYINCOMPOUND
+ // COMPOUNDMIN
+ // FLAG
+ // KEEPCASE
+ // NEEDAFFIX
+
+ this.flags[ruleType] = definitionParts[1];
+ }
+ }
+
+ return rules;
+ },
+
+ /**
+ * Removes comment lines and then cleans up blank lines and trailing whitespace.
+ *
+ * @param {String} data The data from an affix file.
+ * @return {String} The cleaned-up data.
+ */
+
+ _removeAffixComments : function (data) {
+ // Remove comments
+ data = data.replace(/#.*$/mg, "");
+
+ // Trim each line
+ data = data.replace(/^\s\s*/m, '').replace(/\s\s*$/m, '');
+
+ // Remove blank lines.
+ data = data.replace(/\n{2,}/g, "\n");
+
+ // Trim the entire string
+ data = data.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ return data;
+ },
+
+ /**
+ * Parses the words out from the .dic file.
+ *
+ * @param {String} data The data from the dictionary file.
+ * @returns object The lookup table containing all of the words and
+ * word forms from the dictionary.
+ */
+
+ _parseDIC : function (data) {
+ data = this._removeDicComments(data);
+
+ var lines = data.split("\n");
+ var dictionaryTable = {};
+
+ function addWord(word, rules) {
+ // Some dictionaries will list the same word multiple times with different rule sets.
+ if (!(word in dictionaryTable) || typeof dictionaryTable[word] != 'object') {
+ dictionaryTable[word] = [];
+ }
+
+ dictionaryTable[word].push(rules);
+ }
+
+ // The first line is the number of words in the dictionary.
+ for (var i = 1, _len = lines.length; i < _len; i++) {
+ var line = lines[i];
+
+ var parts = line.split("/", 2);
+
+ var word = parts[0];
+
+ // Now for each affix rule, generate that form of the word.
+ if (parts.length > 1) {
+ var ruleCodesArray = this.parseRuleCodes(parts[1]);
+
+ // Save the ruleCodes for compound word situations.
+ if (!("NEEDAFFIX" in this.flags) || ruleCodesArray.indexOf(this.flags.NEEDAFFIX) == -1) {
+ addWord(word, ruleCodesArray);
+ }
+
+ for (var j = 0, _jlen = ruleCodesArray.length; j < _jlen; j++) {
+ var code = ruleCodesArray[j];
+
+ var rule = this.rules[code];
+
+ if (rule) {
+ var newWords = this._applyRule(word, rule);
+
+ for (var ii = 0, _iilen = newWords.length; ii < _iilen; ii++) {
+ var newWord = newWords[ii];
+
+ addWord(newWord, []);
+
+ if (rule.combineable) {
+ for (var k = j + 1; k < _jlen; k++) {
+ var combineCode = ruleCodesArray[k];
+
+ var combineRule = this.rules[combineCode];
+
+ if (combineRule) {
+ if (combineRule.combineable && (rule.type != combineRule.type)) {
+ var otherNewWords = this._applyRule(newWord, combineRule);
+
+ for (var iii = 0, _iiilen = otherNewWords.length; iii < _iiilen; iii++) {
+ var otherNewWord = otherNewWords[iii];
+ addWord(otherNewWord, []);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (code in this.compoundRuleCodes) {
+ this.compoundRuleCodes[code].push(word);
+ }
+ }
+ }
+ else {
+ addWord(word.trim(), []);
+ }
+ }
+
+ return dictionaryTable;
+ },
+
+
+ /**
+ * Removes comment lines and then cleans up blank lines and trailing whitespace.
+ *
+ * @param {String} data The data from a .dic file.
+ * @return {String} The cleaned-up data.
+ */
+
+ _removeDicComments : function (data) {
+ // I can't find any official documentation on it, but at least the de_DE
+ // dictionary uses tab-indented lines as comments.
+
+ // Remove comments
+ data = data.replace(/^\t.*$/mg, "");
+
+ return data;
+
+ // Trim each line
+ data = data.replace(/^\s\s*/m, '').replace(/\s\s*$/m, '');
+
+ // Remove blank lines.
+ data = data.replace(/\n{2,}/g, "\n");
+
+ // Trim the entire string
+ data = data.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ return data;
+ },
+
+ parseRuleCodes : function (textCodes) {
+ if (!textCodes) {
+ return [];
+ }
+ else if (!("FLAG" in this.flags)) {
+ return textCodes.split("");
+ }
+ else if (this.flags.FLAG === "long") {
+ var flags = [];
+
+ for (var i = 0, _len = textCodes.length; i < _len; i += 2) {
+ flags.push(textCodes.substr(i, 2));
+ }
+
+ return flags;
+ }
+ else if (this.flags.FLAG === "num") {
+ return textCode.split(",");
+ }
+ },
+
+ /**
+ * Applies an affix rule to a word.
+ *
+ * @param {String} word The base word.
+ * @param {Object} rule The affix rule.
+ * @returns {String[]} The new words generated by the rule.
+ */
+
+ _applyRule : function (word, rule) {
+ var entries = rule.entries;
+ var newWords = [];
+
+ for (var i = 0, _len = entries.length; i < _len; i++) {
+ var entry = entries[i];
+
+ if (!entry.match || word.match(entry.match)) {
+ var newWord = word;
+
+ if (entry.remove) {
+ newWord = newWord.replace(entry.remove, "");
+ }
+
+ if (rule.type === "SFX") {
+ newWord = newWord + entry.add;
+ }
+ else {
+ newWord = entry.add + newWord;
+ }
+
+ newWords.push(newWord);
+
+ if ("continuationClasses" in entry) {
+ for (var j = 0, _jlen = entry.continuationClasses.length; j < _jlen; j++) {
+ var continuationRule = this.rules[entry.continuationClasses[j]];
+
+ if (continuationRule) {
+ newWords = newWords.concat(this._applyRule(newWord, continuationRule));
+ }
+ /*
+ else {
+ // This shouldn't happen, but it does, at least in the de_DE dictionary.
+ // I think the author mistakenly supplied lower-case rule codes instead
+ // of upper-case.
+ }
+ */
+ }
+ }
+ }
+ }
+
+ return newWords;
+ },
+
+ /**
+ * Checks whether a word or a capitalization variant exists in the current dictionary.
+ * The word is trimmed and several variations of capitalizations are checked.
+ * If you want to check a word without any changes made to it, call checkExact()
+ *
+ * @see http://blog.stevenlevithan.com/archives/faster-trim-javascript re:trimming function
+ *
+ * @param {String} aWord The word to check.
+ * @returns {Boolean}
+ */
+
+ check : function (aWord) {
+ // Remove leading and trailing whitespace
+ var trimmedWord = aWord.replace(/^\s\s*/, '').replace(/\s\s*$/, '');
+
+ if (this.checkExact(trimmedWord)) {
+ return true;
+ }
+
+ // The exact word is not in the dictionary.
+ if (trimmedWord.toUpperCase() === trimmedWord) {
+ // The word was supplied in all uppercase.
+ // Check for a capitalized form of the word.
+ var capitalizedWord = trimmedWord[0] + trimmedWord.substring(1).toLowerCase();
+
+ if (this.hasFlag(capitalizedWord, "KEEPCASE")) {
+ // Capitalization variants are not allowed for this word.
+ return false;
+ }
+
+ if (this.checkExact(capitalizedWord)) {
+ return true;
+ }
+ }
+
+ var lowercaseWord = trimmedWord.toLowerCase();
+
+ if (lowercaseWord !== trimmedWord) {
+ if (this.hasFlag(lowercaseWord, "KEEPCASE")) {
+ // Capitalization variants are not allowed for this word.
+ return false;
+ }
+
+ // Check for a lowercase form
+ if (this.checkExact(lowercaseWord)) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ /**
+ * Checks whether a word exists in the current dictionary.
+ *
+ * @param {String} word The word to check.
+ * @returns {Boolean}
+ */
+
+ checkExact : function (word) {
+ var ruleCodes = this.dictionaryTable[word];
+
+ if (typeof ruleCodes === 'undefined') {
+ // Check if this might be a compound word.
+ if ("COMPOUNDMIN" in this.flags && word.length >= this.flags.COMPOUNDMIN) {
+ for (var i = 0, _len = this.compoundRules.length; i < _len; i++) {
+ if (word.match(this.compoundRules[i])) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+ else {
+ for (var i = 0, _len = ruleCodes.length; i < _len; i++) {
+ if (!this.hasFlag(word, "ONLYINCOMPOUND", ruleCodes[i])) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+ },
+
+ /**
+ * Looks up whether a given word is flagged with a given flag.
+ *
+ * @param {String} word The word in question.
+ * @param {String} flag The flag in question.
+ * @return {Boolean}
+ */
+
+ hasFlag : function (word, flag, wordFlags) {
+ if (flag in this.flags) {
+ if (typeof wordFlags === 'undefined') {
+ var wordFlags = Array.prototype.concat.apply([], this.dictionaryTable[word]);
+ }
+
+ if (wordFlags && wordFlags.indexOf(this.flags[flag]) !== -1) {
+ return true;
+ }
+ }
+
+ return false;
+ },
+
+ /**
+ * Returns a list of suggestions for a misspelled word.
+ *
+ * @see http://www.norvig.com/spell-correct.html for the basis of this suggestor.
+ * This suggestor is primitive, but it works.
+ *
+ * @param {String} word The misspelling.
+ * @param {Number} [limit=5] The maximum number of suggestions to return.
+ * @returns {String[]} The array of suggestions.
+ */
+
+ alphabet : "",
+
+ suggest : function (word, limit) {
+ if (!limit) limit = 5;
+
+ if (this.check(word)) return [];
+
+ // Check the replacement table.
+ for (var i = 0, _len = this.replacementTable.length; i < _len; i++) {
+ var replacementEntry = this.replacementTable[i];
+
+ if (word.indexOf(replacementEntry[0]) !== -1) {
+ var correctedWord = word.replace(replacementEntry[0], replacementEntry[1]);
+
+ if (this.check(correctedWord)) {
+ return [ correctedWord ];
+ }
+ }
+ }
+
+ var self = this;
+ self.alphabet = "abcdefghijklmnopqrstuvwxyz";
+
+ /*
+ if (!self.alphabet) {
+ // Use the alphabet as implicitly defined by the words in the dictionary.
+ var alphaHash = {};
+
+ for (var i in self.dictionaryTable) {
+ for (var j = 0, _len = i.length; j < _len; j++) {
+ alphaHash[i[j]] = true;
+ }
+ }
+
+ for (var i in alphaHash) {
+ self.alphabet += i;
+ }
+
+ var alphaArray = self.alphabet.split("");
+ alphaArray.sort();
+ self.alphabet = alphaArray.join("");
+ }
+ */
+
+ function edits1(words) {
+ var rv = [];
+
+ for (var ii = 0, _iilen = words.length; ii < _iilen; ii++) {
+ var word = words[ii];
+
+ var splits = [];
+
+ for (var i = 0, _len = word.length + 1; i < _len; i++) {
+ splits.push([ word.substring(0, i), word.substring(i, word.length) ]);
+ }
+
+ var deletes = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ deletes.push(s[0] + s[1].substring(1));
+ }
+ }
+
+ var transposes = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1].length > 1) {
+ transposes.push(s[0] + s[1][1] + s[1][0] + s[1].substring(2));
+ }
+ }
+
+ var replaces = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ for (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {
+ replaces.push(s[0] + self.alphabet[j] + s[1].substring(1));
+ }
+ }
+ }
+
+ var inserts = [];
+
+ for (var i = 0, _len = splits.length; i < _len; i++) {
+ var s = splits[i];
+
+ if (s[1]) {
+ for (var j = 0, _jlen = self.alphabet.length; j < _jlen; j++) {
+ replaces.push(s[0] + self.alphabet[j] + s[1]);
+ }
+ }
+ }
+
+ rv = rv.concat(deletes);
+ rv = rv.concat(transposes);
+ rv = rv.concat(replaces);
+ rv = rv.concat(inserts);
+ }
+
+ return rv;
+ }
+
+ function known(words) {
+ var rv = [];
+
+ for (var i = 0; i < words.length; i++) {
+ if (self.check(words[i])) {
+ rv.push(words[i]);
+ }
+ }
+
+ return rv;
+ }
+
+ function correct(word) {
+ // Get the edit-distance-1 and edit-distance-2 forms of this word.
+ var ed1 = edits1([word]);
+ var ed2 = edits1(ed1);
+
+ var corrections = known(ed1).concat(known(ed2));
+
+ // Sort the edits based on how many different ways they were created.
+ var weighted_corrections = {};
+
+ for (var i = 0, _len = corrections.length; i < _len; i++) {
+ if (!(corrections[i] in weighted_corrections)) {
+ weighted_corrections[corrections[i]] = 1;
+ }
+ else {
+ weighted_corrections[corrections[i]] += 1;
+ }
+ }
+
+ var sorted_corrections = [];
+
+ for (var i in weighted_corrections) {
+ sorted_corrections.push([ i, weighted_corrections[i] ]);
+ }
+
+ function sorter(a, b) {
+ if (a[1] < b[1]) {
+ return -1;
+ }
+
+ return 1;
+ }
+
+ sorted_corrections.sort(sorter).reverse();
+
+ var rv = [];
+
+ for (var i = 0, _len = Math.min(limit, sorted_corrections.length); i < _len; i++) {
+ if (!self.hasFlag(sorted_corrections[i][0], "NOSUGGEST")) {
+ rv.push(sorted_corrections[i][0]);
+ }
+ }
+
+ return rv;
+ }
+
+ return correct(word);
+ }
+};
+; browserify_shim__define__module__export__(typeof Typo != "undefined" ? Typo : window.Typo);
+
+}).call(global, undefined, undefined, undefined, undefined, function defineExport(ex) { module.exports = ex; });
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],3:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.defineOption("fullScreen", false, function(cm, val, old) {
+ if (old == CodeMirror.Init) old = false;
+ if (!old == !val) return;
+ if (val) setFullscreen(cm);
+ else setNormal(cm);
+ });
+
+ function setFullscreen(cm) {
+ var wrap = cm.getWrapperElement();
+ cm.state.fullScreenRestore = {scrollTop: window.pageYOffset, scrollLeft: window.pageXOffset,
+ width: wrap.style.width, height: wrap.style.height};
+ wrap.style.width = "";
+ wrap.style.height = "auto";
+ wrap.className += " CodeMirror-fullscreen";
+ document.documentElement.style.overflow = "hidden";
+ cm.refresh();
+ }
+
+ function setNormal(cm) {
+ var wrap = cm.getWrapperElement();
+ wrap.className = wrap.className.replace(/\s*CodeMirror-fullscreen\b/, "");
+ document.documentElement.style.overflow = "";
+ var info = cm.state.fullScreenRestore;
+ wrap.style.width = info.width; wrap.style.height = info.height;
+ window.scrollTo(info.scrollLeft, info.scrollTop);
+ cm.refresh();
+ }
+});
+
+},{"../../lib/codemirror":6}],4:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ var listRE = /^(\s*)(>[> ]*|[*+-]\s|(\d+)([.)]))(\s*)/,
+ emptyListRE = /^(\s*)(>[> ]*|[*+-]|(\d+)[.)])(\s*)$/,
+ unorderedListRE = /[*+-]\s/;
+
+ CodeMirror.commands.newlineAndIndentContinueMarkdownList = function(cm) {
+ if (cm.getOption("disableInput")) return CodeMirror.Pass;
+ var ranges = cm.listSelections(), replacements = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+ var inQuote = eolState.quote !== 0;
+
+ var line = cm.getLine(pos.line), match = listRE.exec(line);
+ if (!ranges[i].empty() || (!inList && !inQuote) || !match) {
+ cm.execCommand("newlineAndIndent");
+ return;
+ }
+ if (emptyListRE.test(line)) {
+ cm.replaceRange("", {
+ line: pos.line, ch: 0
+ }, {
+ line: pos.line, ch: pos.ch + 1
+ });
+ replacements[i] = "\n";
+ } else {
+ var indent = match[1], after = match[5];
+ var bullet = unorderedListRE.test(match[2]) || match[2].indexOf(">") >= 0
+ ? match[2]
+ : (parseInt(match[3], 10) + 1) + match[4];
+
+ replacements[i] = "\n" + indent + bullet + after;
+ }
+ }
+
+ cm.replaceSelections(replacements);
+ };
+});
+
+},{"../../lib/codemirror":6}],5:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Utility function that allows modes to be combined. The mode given
+// as the base argument takes care of most of the normal mode
+// functionality, but a second (typically simple) mode is used, which
+// can override the style of text. Both modes get to parse all of the
+// text, but when both assign a non-null style to a piece of code, the
+// overlay wins, unless the combine argument was true and not overridden,
+// or state.overlay.combineTokens was true, in which case the styles are
+// combined.
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.overlayMode = function(base, overlay, combine) {
+ return {
+ startState: function() {
+ return {
+ base: CodeMirror.startState(base),
+ overlay: CodeMirror.startState(overlay),
+ basePos: 0, baseCur: null,
+ overlayPos: 0, overlayCur: null,
+ streamSeen: null
+ };
+ },
+ copyState: function(state) {
+ return {
+ base: CodeMirror.copyState(base, state.base),
+ overlay: CodeMirror.copyState(overlay, state.overlay),
+ basePos: state.basePos, baseCur: null,
+ overlayPos: state.overlayPos, overlayCur: null
+ };
+ },
+
+ token: function(stream, state) {
+ if (stream != state.streamSeen ||
+ Math.min(state.basePos, state.overlayPos) < stream.start) {
+ state.streamSeen = stream;
+ state.basePos = state.overlayPos = stream.start;
+ }
+
+ if (stream.start == state.basePos) {
+ state.baseCur = base.token(stream, state.base);
+ state.basePos = stream.pos;
+ }
+ if (stream.start == state.overlayPos) {
+ stream.pos = stream.start;
+ state.overlayCur = overlay.token(stream, state.overlay);
+ state.overlayPos = stream.pos;
+ }
+ stream.pos = Math.min(state.basePos, state.overlayPos);
+
+ // state.overlay.combineTokens always takes precedence over combine,
+ // unless set to null
+ if (state.overlayCur == null) return state.baseCur;
+ else if (state.baseCur != null &&
+ state.overlay.combineTokens ||
+ combine && state.overlay.combineTokens == null)
+ return state.baseCur + " " + state.overlayCur;
+ else return state.overlayCur;
+ },
+
+ indent: base.indent && function(state, textAfter) {
+ return base.indent(state.base, textAfter);
+ },
+ electricChars: base.electricChars,
+
+ innerMode: function(state) { return {state: state.base, mode: base}; },
+
+ blankLine: function(state) {
+ if (base.blankLine) base.blankLine(state.base);
+ if (overlay.blankLine) overlay.blankLine(state.overlay);
+ }
+ };
+};
+
+});
+
+},{"../../lib/codemirror":6}],6:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ module.exports = mod();
+ else if (typeof define == "function" && define.amd) // AMD
+ return define([], mod);
+ else // Plain browser env
+ this.CodeMirror = mod();
+})(function() {
+ "use strict";
+
+ // BROWSER SNIFFING
+
+ // Kludges for bugs and behavior differences that can't be feature
+ // detected are enabled based on userAgent etc sniffing.
+ var userAgent = navigator.userAgent;
+ var platform = navigator.platform;
+
+ var gecko = /gecko\/\d/i.test(userAgent);
+ var ie_upto10 = /MSIE \d/.test(userAgent);
+ var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent);
+ var ie = ie_upto10 || ie_11up;
+ var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : ie_11up[1]);
+ var webkit = /WebKit\//.test(userAgent);
+ var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent);
+ var chrome = /Chrome\//.test(userAgent);
+ var presto = /Opera\//.test(userAgent);
+ var safari = /Apple Computer/.test(navigator.vendor);
+ var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent);
+ var phantom = /PhantomJS/.test(userAgent);
+
+ var ios = /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent);
+ // This is woefully incomplete. Suggestions for alternative methods welcome.
+ var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent);
+ var mac = ios || /Mac/.test(platform);
+ var windows = /win/i.test(platform);
+
+ var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/);
+ if (presto_version) presto_version = Number(presto_version[1]);
+ if (presto_version && presto_version >= 15) { presto = false; webkit = true; }
+ // Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+ var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11));
+ var captureRightClick = gecko || (ie && ie_version >= 9);
+
+ // Optimize some code when these features are not used.
+ var sawReadOnlySpans = false, sawCollapsedSpans = false;
+
+ // EDITOR CONSTRUCTOR
+
+ // A CodeMirror instance represents an editor. This is the object
+ // that user code is usually dealing with.
+
+ function CodeMirror(place, options) {
+ if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
+
+ this.options = options = options ? copyObj(options) : {};
+ // Determine effective options based on given values and defaults.
+ copyObj(defaults, options, false);
+ setGuttersForLineNumbers(options);
+
+ var doc = options.value;
+ if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator);
+ this.doc = doc;
+
+ var input = new CodeMirror.inputStyles[options.inputStyle](this);
+ var display = this.display = new Display(place, doc, input);
+ display.wrapper.CodeMirror = this;
+ updateGutters(this);
+ themeChanged(this);
+ if (options.lineWrapping)
+ this.display.wrapper.className += " CodeMirror-wrap";
+ if (options.autofocus && !mobile) display.input.focus();
+ initScrollbars(this);
+
+ this.state = {
+ keyMaps: [], // stores maps added by addKeyMap
+ overlays: [], // highlighting overlays, as added by addOverlay
+ modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info
+ overwrite: false,
+ delayingBlurEvent: false,
+ focused: false,
+ suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+ pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+ selectingText: false,
+ draggingText: false,
+ highlight: new Delayed(), // stores highlight worker timeout
+ keySeq: null, // Unfinished key sequence
+ specialChars: null
+ };
+
+ var cm = this;
+
+ // Override magic textarea content restore that IE sometimes does
+ // on our hidden textarea on reload
+ if (ie && ie_version < 11) setTimeout(function() { cm.display.input.reset(true); }, 20);
+
+ registerEventHandlers(this);
+ ensureGlobalHandlers();
+
+ startOperation(this);
+ this.curOp.forceUpdate = true;
+ attachDoc(this, doc);
+
+ if ((options.autofocus && !mobile) || cm.hasFocus())
+ setTimeout(bind(onFocus, this), 20);
+ else
+ onBlur(this);
+
+ for (var opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
+ optionHandlers[opt](this, options[opt], Init);
+ maybeUpdateLineNumberWidth(this);
+ if (options.finishInit) options.finishInit(this);
+ for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
+ endOperation(this);
+ // Suppress optimizelegibility in Webkit, since it breaks text
+ // measuring on line wrapping boundaries.
+ if (webkit && options.lineWrapping &&
+ getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+ display.lineDiv.style.textRendering = "auto";
+ }
+
+ // DISPLAY CONSTRUCTOR
+
+ // The display handles the DOM integration, both for input reading
+ // and content drawing. It holds references to DOM nodes and
+ // display-related state.
+
+ function Display(place, doc, input) {
+ var d = this;
+ this.input = input;
+
+ // Covers bottom-right square when both scrollbars are present.
+ d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
+ d.scrollbarFiller.setAttribute("cm-not-content", "true");
+ // Covers bottom of gutter when coverGutterNextToScrollbar is on
+ // and h scrollbar is present.
+ d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
+ d.gutterFiller.setAttribute("cm-not-content", "true");
+ // Will contain the actual code, positioned to cover the viewport.
+ d.lineDiv = elt("div", null, "CodeMirror-code");
+ // Elements are added to these to represent selection and cursors.
+ d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
+ d.cursorDiv = elt("div", null, "CodeMirror-cursors");
+ // A visibility: hidden element used to find the size of things.
+ d.measure = elt("div", null, "CodeMirror-measure");
+ // When lines outside of the viewport are measured, they are drawn in this.
+ d.lineMeasure = elt("div", null, "CodeMirror-measure");
+ // Wraps everything that needs to exist inside the vertically-padded coordinate system
+ d.lineSpace = elt("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+ null, "position: relative; outline: none");
+ // Moved around its parent to cover visible view.
+ d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
+ // Set to the height of the document, allowing scrolling.
+ d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
+ d.sizerWidth = null;
+ // Behavior of elts with overflow: auto and padding is
+ // inconsistent across browsers. This is used to ensure the
+ // scrollable area is big enough.
+ d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;");
+ // Will contain the gutters, if any.
+ d.gutters = elt("div", null, "CodeMirror-gutters");
+ d.lineGutter = null;
+ // Actual scrollable element.
+ d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
+ d.scroller.setAttribute("tabIndex", "-1");
+ // The element in which the editor lives.
+ d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
+
+ // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+ if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
+ if (!webkit && !(gecko && mobile)) d.scroller.draggable = true;
+
+ if (place) {
+ if (place.appendChild) place.appendChild(d.wrapper);
+ else place(d.wrapper);
+ }
+
+ // Current rendered range (may be bigger than the view window).
+ d.viewFrom = d.viewTo = doc.first;
+ d.reportedViewFrom = d.reportedViewTo = doc.first;
+ // Information about the rendered lines.
+ d.view = [];
+ d.renderedView = null;
+ // Holds info about a single rendered line when it was rendered
+ // for measurement, while not in view.
+ d.externalMeasured = null;
+ // Empty space (in pixels) above the view
+ d.viewOffset = 0;
+ d.lastWrapHeight = d.lastWrapWidth = 0;
+ d.updateLineNumbers = null;
+
+ d.nativeBarWidth = d.barHeight = d.barWidth = 0;
+ d.scrollbarsClipped = false;
+
+ // Used to only resize the line number gutter when necessary (when
+ // the amount of lines crosses a boundary that makes its width change)
+ d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
+ // Set to true when a non-horizontal-scrolling line widget is
+ // added. As an optimization, line widget aligning is skipped when
+ // this is false.
+ d.alignWidgets = false;
+
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+
+ // Tracks the maximum line length so that the horizontal scrollbar
+ // can be kept static when scrolling.
+ d.maxLine = null;
+ d.maxLineLength = 0;
+ d.maxLineChanged = false;
+
+ // Used for measuring wheel scrolling granularity
+ d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
+
+ // True when shift is held down.
+ d.shift = false;
+
+ // Used to track whether anything happened since the context menu
+ // was opened.
+ d.selForContextMenu = null;
+
+ d.activeTouch = null;
+
+ input.init(d);
+ }
+
+ // STATE UPDATES
+
+ // Used to get the editor into a consistent state again when options change.
+
+ function loadMode(cm) {
+ cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
+ resetModeState(cm);
+ }
+
+ function resetModeState(cm) {
+ cm.doc.iter(function(line) {
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ });
+ cm.doc.frontier = cm.doc.first;
+ startWorker(cm, 100);
+ cm.state.modeGen++;
+ if (cm.curOp) regChange(cm);
+ }
+
+ function wrappingChanged(cm) {
+ if (cm.options.lineWrapping) {
+ addClass(cm.display.wrapper, "CodeMirror-wrap");
+ cm.display.sizer.style.minWidth = "";
+ cm.display.sizerWidth = null;
+ } else {
+ rmClass(cm.display.wrapper, "CodeMirror-wrap");
+ findMaxLine(cm);
+ }
+ estimateLineHeights(cm);
+ regChange(cm);
+ clearCaches(cm);
+ setTimeout(function(){updateScrollbars(cm);}, 100);
+ }
+
+ // Returns a function that estimates the height of a line, to use as
+ // first approximation until the line becomes visible (and is thus
+ // properly measurable).
+ function estimateHeight(cm) {
+ var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
+ var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
+ return function(line) {
+ if (lineIsHidden(cm.doc, line)) return 0;
+
+ var widgetsHeight = 0;
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++) {
+ if (line.widgets[i].height) widgetsHeight += line.widgets[i].height;
+ }
+
+ if (wrapping)
+ return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th;
+ else
+ return widgetsHeight + th;
+ };
+ }
+
+ function estimateLineHeights(cm) {
+ var doc = cm.doc, est = estimateHeight(cm);
+ doc.iter(function(line) {
+ var estHeight = est(line);
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ });
+ }
+
+ function themeChanged(cm) {
+ cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+ cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
+ clearCaches(cm);
+ }
+
+ function guttersChanged(cm) {
+ updateGutters(cm);
+ regChange(cm);
+ setTimeout(function(){alignHorizontally(cm);}, 20);
+ }
+
+ // Rebuild the gutter elements, ensure the margin to the left of the
+ // code matches their width.
+ function updateGutters(cm) {
+ var gutters = cm.display.gutters, specs = cm.options.gutters;
+ removeChildren(gutters);
+ for (var i = 0; i < specs.length; ++i) {
+ var gutterClass = specs[i];
+ var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
+ if (gutterClass == "CodeMirror-linenumbers") {
+ cm.display.lineGutter = gElt;
+ gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
+ }
+ }
+ gutters.style.display = i ? "" : "none";
+ updateGutterSpace(cm);
+ }
+
+ function updateGutterSpace(cm) {
+ var width = cm.display.gutters.offsetWidth;
+ cm.display.sizer.style.marginLeft = width + "px";
+ }
+
+ // Compute the character length of a line, taking into account
+ // collapsed ranges (see markText) that might hide parts, and join
+ // other lines onto it.
+ function lineLength(line) {
+ if (line.height == 0) return 0;
+ var len = line.text.length, merged, cur = line;
+ while (merged = collapsedSpanAtStart(cur)) {
+ var found = merged.find(0, true);
+ cur = found.from.line;
+ len += found.from.ch - found.to.ch;
+ }
+ cur = line;
+ while (merged = collapsedSpanAtEnd(cur)) {
+ var found = merged.find(0, true);
+ len -= cur.text.length - found.from.ch;
+ cur = found.to.line;
+ len += cur.text.length - found.to.ch;
+ }
+ return len;
+ }
+
+ // Find the longest line in the document.
+ function findMaxLine(cm) {
+ var d = cm.display, doc = cm.doc;
+ d.maxLine = getLine(doc, doc.first);
+ d.maxLineLength = lineLength(d.maxLine);
+ d.maxLineChanged = true;
+ doc.iter(function(line) {
+ var len = lineLength(line);
+ if (len > d.maxLineLength) {
+ d.maxLineLength = len;
+ d.maxLine = line;
+ }
+ });
+ }
+
+ // Make sure the gutters options contains the element
+ // "CodeMirror-linenumbers" when the lineNumbers option is true.
+ function setGuttersForLineNumbers(options) {
+ var found = indexOf(options.gutters, "CodeMirror-linenumbers");
+ if (found == -1 && options.lineNumbers) {
+ options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]);
+ } else if (found > -1 && !options.lineNumbers) {
+ options.gutters = options.gutters.slice(0);
+ options.gutters.splice(found, 1);
+ }
+ }
+
+ // SCROLLBARS
+
+ // Prepare DOM reads needed to update the scrollbars. Done in one
+ // shot to minimize update/measure roundtrips.
+ function measureForScrollbars(cm) {
+ var d = cm.display, gutterW = d.gutters.offsetWidth;
+ var docH = Math.round(cm.doc.height + paddingVert(cm.display));
+ return {
+ clientHeight: d.scroller.clientHeight,
+ viewHeight: d.wrapper.clientHeight,
+ scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+ viewWidth: d.wrapper.clientWidth,
+ barLeft: cm.options.fixedGutter ? gutterW : 0,
+ docHeight: docH,
+ scrollHeight: docH + scrollGap(cm) + d.barHeight,
+ nativeBarWidth: d.nativeBarWidth,
+ gutterWidth: gutterW
+ };
+ }
+
+ function NativeScrollbars(place, scroll, cm) {
+ this.cm = cm;
+ var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar");
+ var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar");
+ place(vert); place(horiz);
+
+ on(vert, "scroll", function() {
+ if (vert.clientHeight) scroll(vert.scrollTop, "vertical");
+ });
+ on(horiz, "scroll", function() {
+ if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal");
+ });
+
+ this.checkedOverlay = false;
+ // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+ if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px";
+ }
+
+ NativeScrollbars.prototype = copyObj({
+ update: function(measure) {
+ var needsH = measure.scrollWidth > measure.clientWidth + 1;
+ var needsV = measure.scrollHeight > measure.clientHeight + 1;
+ var sWidth = measure.nativeBarWidth;
+
+ if (needsV) {
+ this.vert.style.display = "block";
+ this.vert.style.bottom = needsH ? sWidth + "px" : "0";
+ var totalHeight = measure.viewHeight - (needsH ? sWidth : 0);
+ // A bug in IE8 can cause this value to be negative, so guard it.
+ this.vert.firstChild.style.height =
+ Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px";
+ } else {
+ this.vert.style.display = "";
+ this.vert.firstChild.style.height = "0";
+ }
+
+ if (needsH) {
+ this.horiz.style.display = "block";
+ this.horiz.style.right = needsV ? sWidth + "px" : "0";
+ this.horiz.style.left = measure.barLeft + "px";
+ var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0);
+ this.horiz.firstChild.style.width =
+ (measure.scrollWidth - measure.clientWidth + totalWidth) + "px";
+ } else {
+ this.horiz.style.display = "";
+ this.horiz.firstChild.style.width = "0";
+ }
+
+ if (!this.checkedOverlay && measure.clientHeight > 0) {
+ if (sWidth == 0) this.overlayHack();
+ this.checkedOverlay = true;
+ }
+
+ return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
+ },
+ setScrollLeft: function(pos) {
+ if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
+ },
+ setScrollTop: function(pos) {
+ if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
+ },
+ overlayHack: function() {
+ var w = mac && !mac_geMountainLion ? "12px" : "18px";
+ this.horiz.style.minHeight = this.vert.style.minWidth = w;
+ var self = this;
+ var barMouseDown = function(e) {
+ if (e_target(e) != self.vert && e_target(e) != self.horiz)
+ operation(self.cm, onMouseDown)(e);
+ };
+ on(this.vert, "mousedown", barMouseDown);
+ on(this.horiz, "mousedown", barMouseDown);
+ },
+ clear: function() {
+ var parent = this.horiz.parentNode;
+ parent.removeChild(this.horiz);
+ parent.removeChild(this.vert);
+ }
+ }, NativeScrollbars.prototype);
+
+ function NullScrollbars() {}
+
+ NullScrollbars.prototype = copyObj({
+ update: function() { return {bottom: 0, right: 0}; },
+ setScrollLeft: function() {},
+ setScrollTop: function() {},
+ clear: function() {}
+ }, NullScrollbars.prototype);
+
+ CodeMirror.scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars};
+
+ function initScrollbars(cm) {
+ if (cm.display.scrollbars) {
+ cm.display.scrollbars.clear();
+ if (cm.display.scrollbars.addClass)
+ rmClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ cm.display.scrollbars = new CodeMirror.scrollbarModel[cm.options.scrollbarStyle](function(node) {
+ cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller);
+ // Prevent clicks in the scrollbars from killing focus
+ on(node, "mousedown", function() {
+ if (cm.state.focused) setTimeout(function() { cm.display.input.focus(); }, 0);
+ });
+ node.setAttribute("cm-not-content", "true");
+ }, function(pos, axis) {
+ if (axis == "horizontal") setScrollLeft(cm, pos);
+ else setScrollTop(cm, pos);
+ }, cm);
+ if (cm.display.scrollbars.addClass)
+ addClass(cm.display.wrapper, cm.display.scrollbars.addClass);
+ }
+
+ function updateScrollbars(cm, measure) {
+ if (!measure) measure = measureForScrollbars(cm);
+ var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight;
+ updateScrollbarsInner(cm, measure);
+ for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+ if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+ updateHeightsInViewport(cm);
+ updateScrollbarsInner(cm, measureForScrollbars(cm));
+ startWidth = cm.display.barWidth; startHeight = cm.display.barHeight;
+ }
+ }
+
+ // Re-synchronize the fake scrollbars with the actual size of the
+ // content.
+ function updateScrollbarsInner(cm, measure) {
+ var d = cm.display;
+ var sizes = d.scrollbars.update(measure);
+
+ d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px";
+ d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px";
+
+ if (sizes.right && sizes.bottom) {
+ d.scrollbarFiller.style.display = "block";
+ d.scrollbarFiller.style.height = sizes.bottom + "px";
+ d.scrollbarFiller.style.width = sizes.right + "px";
+ } else d.scrollbarFiller.style.display = "";
+ if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+ d.gutterFiller.style.display = "block";
+ d.gutterFiller.style.height = sizes.bottom + "px";
+ d.gutterFiller.style.width = measure.gutterWidth + "px";
+ } else d.gutterFiller.style.display = "";
+ }
+
+ // Compute the lines that are visible in a given viewport (defaults
+ // the the current scroll position). viewport may contain top,
+ // height, and ensure (see op.scrollToPos) properties.
+ function visibleLines(display, doc, viewport) {
+ var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop;
+ top = Math.floor(top - paddingTop(display));
+ var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight;
+
+ var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom);
+ // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+ // forces those lines into the viewport (if possible).
+ if (viewport && viewport.ensure) {
+ var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line;
+ if (ensureFrom < from) {
+ from = ensureFrom;
+ to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight);
+ } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+ from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight);
+ to = ensureTo;
+ }
+ }
+ return {from: from, to: Math.max(to, from + 1)};
+ }
+
+ // LINE NUMBERS
+
+ // Re-align line numbers and gutter marks to compensate for
+ // horizontal scrolling.
+ function alignHorizontally(cm) {
+ var display = cm.display, view = display.view;
+ if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
+ var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
+ var gutterW = display.gutters.offsetWidth, left = comp + "px";
+ for (var i = 0; i < view.length; i++) if (!view[i].hidden) {
+ if (cm.options.fixedGutter && view[i].gutter)
+ view[i].gutter.style.left = left;
+ var align = view[i].alignable;
+ if (align) for (var j = 0; j < align.length; j++)
+ align[j].style.left = left;
+ }
+ if (cm.options.fixedGutter)
+ display.gutters.style.left = (comp + gutterW) + "px";
+ }
+
+ // Used to ensure that the line number gutter is still the right
+ // size for the current document size. Returns true when an update
+ // is needed.
+ function maybeUpdateLineNumberWidth(cm) {
+ if (!cm.options.lineNumbers) return false;
+ var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
+ if (last.length != display.lineNumChars) {
+ var test = display.measure.appendChild(elt("div", [elt("div", last)],
+ "CodeMirror-linenumber CodeMirror-gutter-elt"));
+ var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
+ display.lineGutter.style.width = "";
+ display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1;
+ display.lineNumWidth = display.lineNumInnerWidth + padding;
+ display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
+ display.lineGutter.style.width = display.lineNumWidth + "px";
+ updateGutterSpace(cm);
+ return true;
+ }
+ return false;
+ }
+
+ function lineNumberFor(options, i) {
+ return String(options.lineNumberFormatter(i + options.firstLineNumber));
+ }
+
+ // Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+ // but using getBoundingClientRect to get a sub-pixel-accurate
+ // result.
+ function compensateForHScroll(display) {
+ return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left;
+ }
+
+ // DISPLAY DRAWING
+
+ function DisplayUpdate(cm, viewport, force) {
+ var display = cm.display;
+
+ this.viewport = viewport;
+ // Store some values that we'll need later (but don't want to force a relayout for)
+ this.visible = visibleLines(display, cm.doc, viewport);
+ this.editorIsHidden = !display.wrapper.offsetWidth;
+ this.wrapperHeight = display.wrapper.clientHeight;
+ this.wrapperWidth = display.wrapper.clientWidth;
+ this.oldDisplayWidth = displayWidth(cm);
+ this.force = force;
+ this.dims = getDimensions(cm);
+ this.events = [];
+ }
+
+ DisplayUpdate.prototype.signal = function(emitter, type) {
+ if (hasHandler(emitter, type))
+ this.events.push(arguments);
+ };
+ DisplayUpdate.prototype.finish = function() {
+ for (var i = 0; i < this.events.length; i++)
+ signal.apply(null, this.events[i]);
+ };
+
+ function maybeClipScrollbars(cm) {
+ var display = cm.display;
+ if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+ display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth;
+ display.heightForcer.style.height = scrollGap(cm) + "px";
+ display.sizer.style.marginBottom = -display.nativeBarWidth + "px";
+ display.sizer.style.borderRightWidth = scrollGap(cm) + "px";
+ display.scrollbarsClipped = true;
+ }
+ }
+
+ // Does the actual updating of the line display. Bails out
+ // (returning false) when there is nothing to be done and forced is
+ // false.
+ function updateDisplayIfNeeded(cm, update) {
+ var display = cm.display, doc = cm.doc;
+
+ if (update.editorIsHidden) {
+ resetView(cm);
+ return false;
+ }
+
+ // Bail out if the visible area is already rendered and nothing changed.
+ if (!update.force &&
+ update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+ display.renderedView == display.view && countDirtyView(cm) == 0)
+ return false;
+
+ if (maybeUpdateLineNumberWidth(cm)) {
+ resetView(cm);
+ update.dims = getDimensions(cm);
+ }
+
+ // Compute a suitable new viewport (from & to)
+ var end = doc.first + doc.size;
+ var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first);
+ var to = Math.min(end, update.visible.to + cm.options.viewportMargin);
+ if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom);
+ if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo);
+ if (sawCollapsedSpans) {
+ from = visualLineNo(cm.doc, from);
+ to = visualLineEndNo(cm.doc, to);
+ }
+
+ var different = from != display.viewFrom || to != display.viewTo ||
+ display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth;
+ adjustView(cm, from, to);
+
+ display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom));
+ // Position the mover div to align with the current scroll position
+ cm.display.mover.style.top = display.viewOffset + "px";
+
+ var toUpdate = countDirtyView(cm);
+ if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+ (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+ return false;
+
+ // For big changes, we hide the enclosing element during the
+ // update, since that speeds up the operations on most browsers.
+ var focused = activeElt();
+ if (toUpdate > 4) display.lineDiv.style.display = "none";
+ patchDisplay(cm, display.updateLineNumbers, update.dims);
+ if (toUpdate > 4) display.lineDiv.style.display = "";
+ display.renderedView = display.view;
+ // There might have been a widget with a focused element that got
+ // hidden or updated, if so re-focus it.
+ if (focused && activeElt() != focused && focused.offsetHeight) focused.focus();
+
+ // Prevent selection and cursors from interfering with the scroll
+ // width and height.
+ removeChildren(display.cursorDiv);
+ removeChildren(display.selectionDiv);
+ display.gutters.style.height = display.sizer.style.minHeight = 0;
+
+ if (different) {
+ display.lastWrapHeight = update.wrapperHeight;
+ display.lastWrapWidth = update.wrapperWidth;
+ startWorker(cm, 400);
+ }
+
+ display.updateLineNumbers = null;
+
+ return true;
+ }
+
+ function postUpdateDisplay(cm, update) {
+ var viewport = update.viewport;
+ for (var first = true;; first = false) {
+ if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+ // Clip forced viewport to actual scrollable area.
+ if (viewport && viewport.top != null)
+ viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)};
+ // Updated line heights might result in the drawn area not
+ // actually covering the viewport. Keep looping until it does.
+ update.visible = visibleLines(cm.display, cm.doc, viewport);
+ if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+ break;
+ }
+ if (!updateDisplayIfNeeded(cm, update)) break;
+ updateHeightsInViewport(cm);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ setDocumentHeight(cm, barMeasure);
+ updateScrollbars(cm, barMeasure);
+ }
+
+ update.signal(cm, "update", cm);
+ if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+ update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo);
+ cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo;
+ }
+ }
+
+ function updateDisplaySimple(cm, viewport) {
+ var update = new DisplayUpdate(cm, viewport);
+ if (updateDisplayIfNeeded(cm, update)) {
+ updateHeightsInViewport(cm);
+ postUpdateDisplay(cm, update);
+ var barMeasure = measureForScrollbars(cm);
+ updateSelection(cm);
+ setDocumentHeight(cm, barMeasure);
+ updateScrollbars(cm, barMeasure);
+ update.finish();
+ }
+ }
+
+ function setDocumentHeight(cm, measure) {
+ cm.display.sizer.style.minHeight = measure.docHeight + "px";
+ var total = measure.docHeight + cm.display.barHeight;
+ cm.display.heightForcer.style.top = total + "px";
+ cm.display.gutters.style.height = Math.max(total + scrollGap(cm), measure.clientHeight) + "px";
+ }
+
+ // Read the actual heights of the rendered lines, and update their
+ // stored heights to match.
+ function updateHeightsInViewport(cm) {
+ var display = cm.display;
+ var prevBottom = display.lineDiv.offsetTop;
+ for (var i = 0; i < display.view.length; i++) {
+ var cur = display.view[i], height;
+ if (cur.hidden) continue;
+ if (ie && ie_version < 8) {
+ var bot = cur.node.offsetTop + cur.node.offsetHeight;
+ height = bot - prevBottom;
+ prevBottom = bot;
+ } else {
+ var box = cur.node.getBoundingClientRect();
+ height = box.bottom - box.top;
+ }
+ var diff = cur.line.height - height;
+ if (height < 2) height = textHeight(display);
+ if (diff > .001 || diff < -.001) {
+ updateLineHeight(cur.line, height);
+ updateWidgetHeight(cur.line);
+ if (cur.rest) for (var j = 0; j < cur.rest.length; j++)
+ updateWidgetHeight(cur.rest[j]);
+ }
+ }
+ }
+
+ // Read and store the height of line widgets associated with the
+ // given line.
+ function updateWidgetHeight(line) {
+ if (line.widgets) for (var i = 0; i < line.widgets.length; ++i)
+ line.widgets[i].height = line.widgets[i].node.offsetHeight;
+ }
+
+ // Do a bulk-read of the DOM positions and sizes needed to draw the
+ // view, so that we don't interleave reading and writing to the DOM.
+ function getDimensions(cm) {
+ var d = cm.display, left = {}, width = {};
+ var gutterLeft = d.gutters.clientLeft;
+ for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+ left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft;
+ width[cm.options.gutters[i]] = n.clientWidth;
+ }
+ return {fixedPos: compensateForHScroll(d),
+ gutterTotalWidth: d.gutters.offsetWidth,
+ gutterLeft: left,
+ gutterWidth: width,
+ wrapperWidth: d.wrapper.clientWidth};
+ }
+
+ // Sync the actual display DOM structure with display.view, removing
+ // nodes for lines that are no longer in view, and creating the ones
+ // that are not there yet, and updating the ones that are out of
+ // date.
+ function patchDisplay(cm, updateNumbersFrom, dims) {
+ var display = cm.display, lineNumbers = cm.options.lineNumbers;
+ var container = display.lineDiv, cur = container.firstChild;
+
+ function rm(node) {
+ var next = node.nextSibling;
+ // Works around a throw-scroll bug in OS X Webkit
+ if (webkit && mac && cm.display.currentWheelTarget == node)
+ node.style.display = "none";
+ else
+ node.parentNode.removeChild(node);
+ return next;
+ }
+
+ var view = display.view, lineN = display.viewFrom;
+ // Loop over the elements in the view, syncing cur (the DOM nodes
+ // in display.lineDiv) with the view as we go.
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (lineView.hidden) {
+ } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+ var node = buildLineElement(cm, lineView, lineN, dims);
+ container.insertBefore(node, cur);
+ } else { // Already drawn
+ while (cur != lineView.node) cur = rm(cur);
+ var updateNumber = lineNumbers && updateNumbersFrom != null &&
+ updateNumbersFrom <= lineN && lineView.lineNumber;
+ if (lineView.changes) {
+ if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false;
+ updateLineForChanges(cm, lineView, lineN, dims);
+ }
+ if (updateNumber) {
+ removeChildren(lineView.lineNumber);
+ lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)));
+ }
+ cur = lineView.node.nextSibling;
+ }
+ lineN += lineView.size;
+ }
+ while (cur) cur = rm(cur);
+ }
+
+ // When an aspect of a line changes, a string is added to
+ // lineView.changes. This updates the relevant part of the line's
+ // DOM structure.
+ function updateLineForChanges(cm, lineView, lineN, dims) {
+ for (var j = 0; j < lineView.changes.length; j++) {
+ var type = lineView.changes[j];
+ if (type == "text") updateLineText(cm, lineView);
+ else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims);
+ else if (type == "class") updateLineClasses(lineView);
+ else if (type == "widget") updateLineWidgets(cm, lineView, dims);
+ }
+ lineView.changes = null;
+ }
+
+ // Lines with gutter elements, widgets or a background class need to
+ // be wrapped, and have the extra elements added to the wrapper div
+ function ensureLineWrapped(lineView) {
+ if (lineView.node == lineView.text) {
+ lineView.node = elt("div", null, null, "position: relative");
+ if (lineView.text.parentNode)
+ lineView.text.parentNode.replaceChild(lineView.node, lineView.text);
+ lineView.node.appendChild(lineView.text);
+ if (ie && ie_version < 8) lineView.node.style.zIndex = 2;
+ }
+ return lineView.node;
+ }
+
+ function updateLineBackground(lineView) {
+ var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass;
+ if (cls) cls += " CodeMirror-linebackground";
+ if (lineView.background) {
+ if (cls) lineView.background.className = cls;
+ else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; }
+ } else if (cls) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild);
+ }
+ }
+
+ // Wrapper around buildLineContent which will reuse the structure
+ // in display.externalMeasured when possible.
+ function getLineContent(cm, lineView) {
+ var ext = cm.display.externalMeasured;
+ if (ext && ext.line == lineView.line) {
+ cm.display.externalMeasured = null;
+ lineView.measure = ext.measure;
+ return ext.built;
+ }
+ return buildLineContent(cm, lineView);
+ }
+
+ // Redraw the line's text. Interacts with the background and text
+ // classes because the mode may output tokens that influence these
+ // classes.
+ function updateLineText(cm, lineView) {
+ var cls = lineView.text.className;
+ var built = getLineContent(cm, lineView);
+ if (lineView.text == lineView.node) lineView.node = built.pre;
+ lineView.text.parentNode.replaceChild(built.pre, lineView.text);
+ lineView.text = built.pre;
+ if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+ lineView.bgClass = built.bgClass;
+ lineView.textClass = built.textClass;
+ updateLineClasses(lineView);
+ } else if (cls) {
+ lineView.text.className = cls;
+ }
+ }
+
+ function updateLineClasses(lineView) {
+ updateLineBackground(lineView);
+ if (lineView.line.wrapClass)
+ ensureLineWrapped(lineView).className = lineView.line.wrapClass;
+ else if (lineView.node != lineView.text)
+ lineView.node.className = "";
+ var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass;
+ lineView.text.className = textClass || "";
+ }
+
+ function updateLineGutter(cm, lineView, lineN, dims) {
+ if (lineView.gutter) {
+ lineView.node.removeChild(lineView.gutter);
+ lineView.gutter = null;
+ }
+ if (lineView.gutterBackground) {
+ lineView.node.removeChild(lineView.gutterBackground);
+ lineView.gutterBackground = null;
+ }
+ if (lineView.line.gutterClass) {
+ var wrap = ensureLineWrapped(lineView);
+ lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+ "left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) +
+ "px; width: " + dims.gutterTotalWidth + "px");
+ wrap.insertBefore(lineView.gutterBackground, lineView.text);
+ }
+ var markers = lineView.line.gutterMarkers;
+ if (cm.options.lineNumbers || markers) {
+ var wrap = ensureLineWrapped(lineView);
+ var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", "left: " +
+ (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px");
+ cm.display.input.setUneditable(gutterWrap);
+ wrap.insertBefore(gutterWrap, lineView.text);
+ if (lineView.line.gutterClass)
+ gutterWrap.className += " " + lineView.line.gutterClass;
+ if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+ lineView.lineNumber = gutterWrap.appendChild(
+ elt("div", lineNumberFor(cm.options, lineN),
+ "CodeMirror-linenumber CodeMirror-gutter-elt",
+ "left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+ + cm.display.lineNumInnerWidth + "px"));
+ if (markers) for (var k = 0; k < cm.options.gutters.length; ++k) {
+ var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
+ if (found)
+ gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
+ dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
+ }
+ }
+ }
+
+ function updateLineWidgets(cm, lineView, dims) {
+ if (lineView.alignable) lineView.alignable = null;
+ for (var node = lineView.node.firstChild, next; node; node = next) {
+ var next = node.nextSibling;
+ if (node.className == "CodeMirror-linewidget")
+ lineView.node.removeChild(node);
+ }
+ insertLineWidgets(cm, lineView, dims);
+ }
+
+ // Build a line's DOM representation from scratch
+ function buildLineElement(cm, lineView, lineN, dims) {
+ var built = getLineContent(cm, lineView);
+ lineView.text = lineView.node = built.pre;
+ if (built.bgClass) lineView.bgClass = built.bgClass;
+ if (built.textClass) lineView.textClass = built.textClass;
+
+ updateLineClasses(lineView);
+ updateLineGutter(cm, lineView, lineN, dims);
+ insertLineWidgets(cm, lineView, dims);
+ return lineView.node;
+ }
+
+ // A lineView may contain multiple logical lines (when merged by
+ // collapsed spans). The widgets for all of them need to be drawn.
+ function insertLineWidgets(cm, lineView, dims) {
+ insertLineWidgetsFor(cm, lineView.line, lineView, dims, true);
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+ insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false);
+ }
+
+ function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+ if (!line.widgets) return;
+ var wrap = ensureLineWrapped(lineView);
+ for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+ var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
+ if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true");
+ positionLineWidget(widget, node, lineView, dims);
+ cm.display.input.setUneditable(node);
+ if (allowAbove && widget.above)
+ wrap.insertBefore(node, lineView.gutter || lineView.text);
+ else
+ wrap.appendChild(node);
+ signalLater(widget, "redraw");
+ }
+ }
+
+ function positionLineWidget(widget, node, lineView, dims) {
+ if (widget.noHScroll) {
+ (lineView.alignable || (lineView.alignable = [])).push(node);
+ var width = dims.wrapperWidth;
+ node.style.left = dims.fixedPos + "px";
+ if (!widget.coverGutter) {
+ width -= dims.gutterTotalWidth;
+ node.style.paddingLeft = dims.gutterTotalWidth + "px";
+ }
+ node.style.width = width + "px";
+ }
+ if (widget.coverGutter) {
+ node.style.zIndex = 5;
+ node.style.position = "relative";
+ if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
+ }
+ }
+
+ // POSITION OBJECT
+
+ // A Pos instance represents a position within the text.
+ var Pos = CodeMirror.Pos = function(line, ch) {
+ if (!(this instanceof Pos)) return new Pos(line, ch);
+ this.line = line; this.ch = ch;
+ };
+
+ // Compare two positions, return 0 if they are the same, a negative
+ // number when a is less, and a positive number otherwise.
+ var cmp = CodeMirror.cmpPos = function(a, b) { return a.line - b.line || a.ch - b.ch; };
+
+ function copyPos(x) {return Pos(x.line, x.ch);}
+ function maxPos(a, b) { return cmp(a, b) < 0 ? b : a; }
+ function minPos(a, b) { return cmp(a, b) < 0 ? a : b; }
+
+ // INPUT HANDLING
+
+ function ensureFocus(cm) {
+ if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); }
+ }
+
+ function isReadOnly(cm) {
+ return cm.options.readOnly || cm.doc.cantEdit;
+ }
+
+ // This will be set to an array of strings when copying, so that,
+ // when pasting, we know what kind of selections the copied text
+ // was made out of.
+ var lastCopied = null;
+
+ function applyTextInput(cm, inserted, deleted, sel, origin) {
+ var doc = cm.doc;
+ cm.display.shift = false;
+ if (!sel) sel = doc.sel;
+
+ var paste = cm.state.pasteIncoming || origin == "paste";
+ var textLines = doc.splitLines(inserted), multiPaste = null;
+ // When pasing N lines into N selections, insert one line per selection
+ if (paste && sel.ranges.length > 1) {
+ if (lastCopied && lastCopied.join("\n") == inserted) {
+ if (sel.ranges.length % lastCopied.length == 0) {
+ multiPaste = [];
+ for (var i = 0; i < lastCopied.length; i++)
+ multiPaste.push(doc.splitLines(lastCopied[i]));
+ }
+ } else if (textLines.length == sel.ranges.length) {
+ multiPaste = map(textLines, function(l) { return [l]; });
+ }
+ }
+
+ // Normal behavior is to insert the new text into every selection
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ var from = range.from(), to = range.to();
+ if (range.empty()) {
+ if (deleted && deleted > 0) // Handle deletion
+ from = Pos(from.line, from.ch - deleted);
+ else if (cm.state.overwrite && !paste) // Handle overwrite
+ to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length));
+ }
+ var updateInput = cm.curOp.updateInput;
+ var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
+ origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")};
+ makeChange(cm.doc, changeEvent);
+ signalLater(cm, "inputRead", cm, changeEvent);
+ }
+ if (inserted && !paste)
+ triggerElectric(cm, inserted);
+
+ ensureCursorVisible(cm);
+ cm.curOp.updateInput = updateInput;
+ cm.curOp.typing = true;
+ cm.state.pasteIncoming = cm.state.cutIncoming = false;
+ }
+
+ function handlePaste(e, cm) {
+ var pasted = e.clipboardData && e.clipboardData.getData("text/plain");
+ if (pasted) {
+ e.preventDefault();
+ if (!isReadOnly(cm) && !cm.options.disableInput)
+ runInOp(cm, function() { applyTextInput(cm, pasted, 0, null, "paste"); });
+ return true;
+ }
+ }
+
+ function triggerElectric(cm, inserted) {
+ // When an 'electric' character is inserted, immediately trigger a reindent
+ if (!cm.options.electricChars || !cm.options.smartIndent) return;
+ var sel = cm.doc.sel;
+
+ for (var i = sel.ranges.length - 1; i >= 0; i--) {
+ var range = sel.ranges[i];
+ if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue;
+ var mode = cm.getModeAt(range.head);
+ var indented = false;
+ if (mode.electricChars) {
+ for (var j = 0; j < mode.electricChars.length; j++)
+ if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+ indented = indentLine(cm, range.head.line, "smart");
+ break;
+ }
+ } else if (mode.electricInput) {
+ if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+ indented = indentLine(cm, range.head.line, "smart");
+ }
+ if (indented) signalLater(cm, "electricInput", cm, range.head.line);
+ }
+ }
+
+ function copyableRanges(cm) {
+ var text = [], ranges = [];
+ for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+ var line = cm.doc.sel.ranges[i].head.line;
+ var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)};
+ ranges.push(lineRange);
+ text.push(cm.getRange(lineRange.anchor, lineRange.head));
+ }
+ return {text: text, ranges: ranges};
+ }
+
+ function disableBrowserMagic(field) {
+ field.setAttribute("autocorrect", "off");
+ field.setAttribute("autocapitalize", "off");
+ field.setAttribute("spellcheck", "false");
+ }
+
+ // TEXTAREA INPUT STYLE
+
+ function TextareaInput(cm) {
+ this.cm = cm;
+ // See input.poll and input.reset
+ this.prevInput = "";
+
+ // Flag that indicates whether we expect input to appear real soon
+ // now (after some event like 'keypress' or 'input') and are
+ // polling intensively.
+ this.pollingFast = false;
+ // Self-resetting timeout for the poller
+ this.polling = new Delayed();
+ // Tracks when input.reset has punted to just putting a short
+ // string into the textarea instead of the full selection.
+ this.inaccurateSelection = false;
+ // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+ this.hasSelection = false;
+ this.composing = null;
+ };
+
+ function hiddenTextarea() {
+ var te = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none");
+ var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
+ // The textarea is kept positioned near the cursor to prevent the
+ // fact that it'll be scrolled into view on input from scrolling
+ // our fake cursor out of view. On webkit, when wrap=off, paste is
+ // very slow. So make the area wide instead.
+ if (webkit) te.style.width = "1000px";
+ else te.setAttribute("wrap", "off");
+ // If border: 0; -- iOS fails to open keyboard (issue #1287)
+ if (ios) te.style.border = "1px solid black";
+ disableBrowserMagic(te);
+ return div;
+ }
+
+ TextareaInput.prototype = copyObj({
+ init: function(display) {
+ var input = this, cm = this.cm;
+
+ // Wraps and hides input textarea
+ var div = this.wrapper = hiddenTextarea();
+ // The semihidden textarea that is focused when the editor is
+ // focused, and receives input.
+ var te = this.textarea = div.firstChild;
+ display.wrapper.insertBefore(div, display.wrapper.firstChild);
+
+ // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+ if (ios) te.style.width = "0px";
+
+ on(te, "input", function() {
+ if (ie && ie_version >= 9 && input.hasSelection) input.hasSelection = null;
+ input.poll();
+ });
+
+ on(te, "paste", function(e) {
+ if (handlePaste(e, cm)) return true;
+
+ cm.state.pasteIncoming = true;
+ input.fastPoll();
+ });
+
+ function prepareCopyCut(e) {
+ if (cm.somethingSelected()) {
+ lastCopied = cm.getSelections();
+ if (input.inaccurateSelection) {
+ input.prevInput = "";
+ input.inaccurateSelection = false;
+ te.value = lastCopied.join("\n");
+ selectInput(te);
+ }
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = ranges.text;
+ if (e.type == "cut") {
+ cm.setSelections(ranges.ranges, null, sel_dontScroll);
+ } else {
+ input.prevInput = "";
+ te.value = ranges.text.join("\n");
+ selectInput(te);
+ }
+ }
+ if (e.type == "cut") cm.state.cutIncoming = true;
+ }
+ on(te, "cut", prepareCopyCut);
+ on(te, "copy", prepareCopyCut);
+
+ on(display.scroller, "paste", function(e) {
+ if (eventInWidget(display, e)) return;
+ cm.state.pasteIncoming = true;
+ input.focus();
+ });
+
+ // Prevent normal selection in the editor (we handle our own)
+ on(display.lineSpace, "selectstart", function(e) {
+ if (!eventInWidget(display, e)) e_preventDefault(e);
+ });
+
+ on(te, "compositionstart", function() {
+ var start = cm.getCursor("from");
+ if (input.composing) input.composing.range.clear()
+ input.composing = {
+ start: start,
+ range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+ };
+ });
+ on(te, "compositionend", function() {
+ if (input.composing) {
+ input.poll();
+ input.composing.range.clear();
+ input.composing = null;
+ }
+ });
+ },
+
+ prepareSelection: function() {
+ // Redraw the selection and/or cursor
+ var cm = this.cm, display = cm.display, doc = cm.doc;
+ var result = prepareSelection(cm);
+
+ // Move the hidden textarea near the cursor to prevent scrolling artifacts
+ if (cm.options.moveInputWithCursor) {
+ var headPos = cursorCoords(cm, doc.sel.primary().head, "div");
+ var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect();
+ result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+ headPos.top + lineOff.top - wrapOff.top));
+ result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+ headPos.left + lineOff.left - wrapOff.left));
+ }
+
+ return result;
+ },
+
+ showSelection: function(drawn) {
+ var cm = this.cm, display = cm.display;
+ removeChildrenAndAdd(display.cursorDiv, drawn.cursors);
+ removeChildrenAndAdd(display.selectionDiv, drawn.selection);
+ if (drawn.teTop != null) {
+ this.wrapper.style.top = drawn.teTop + "px";
+ this.wrapper.style.left = drawn.teLeft + "px";
+ }
+ },
+
+ // Reset the input to correspond to the selection (or to be empty,
+ // when not typing and nothing is selected)
+ reset: function(typing) {
+ if (this.contextMenuPending) return;
+ var minimal, selected, cm = this.cm, doc = cm.doc;
+ if (cm.somethingSelected()) {
+ this.prevInput = "";
+ var range = doc.sel.primary();
+ minimal = hasCopyEvent &&
+ (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000);
+ var content = minimal ? "-" : selected || cm.getSelection();
+ this.textarea.value = content;
+ if (cm.state.focused) selectInput(this.textarea);
+ if (ie && ie_version >= 9) this.hasSelection = content;
+ } else if (!typing) {
+ this.prevInput = this.textarea.value = "";
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ }
+ this.inaccurateSelection = minimal;
+ },
+
+ getField: function() { return this.textarea; },
+
+ supportsTouch: function() { return false; },
+
+ focus: function() {
+ if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+ try { this.textarea.focus(); }
+ catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+ }
+ },
+
+ blur: function() { this.textarea.blur(); },
+
+ resetPosition: function() {
+ this.wrapper.style.top = this.wrapper.style.left = 0;
+ },
+
+ receivedFocus: function() { this.slowPoll(); },
+
+ // Poll for input changes, using the normal rate of polling. This
+ // runs as long as the editor is focused.
+ slowPoll: function() {
+ var input = this;
+ if (input.pollingFast) return;
+ input.polling.set(this.cm.options.pollInterval, function() {
+ input.poll();
+ if (input.cm.state.focused) input.slowPoll();
+ });
+ },
+
+ // When an event has just come in that is likely to add or change
+ // something in the input textarea, we poll faster, to ensure that
+ // the change appears on the screen quickly.
+ fastPoll: function() {
+ var missed = false, input = this;
+ input.pollingFast = true;
+ function p() {
+ var changed = input.poll();
+ if (!changed && !missed) {missed = true; input.polling.set(60, p);}
+ else {input.pollingFast = false; input.slowPoll();}
+ }
+ input.polling.set(20, p);
+ },
+
+ // Read input from the textarea, and update the document to match.
+ // When something is selected, it is present in the textarea, and
+ // selected (unless it is huge, in which case a placeholder is
+ // used). When nothing is selected, the cursor sits after previously
+ // seen text (can be empty), which is stored in prevInput (we must
+ // not reset the textarea when typing, because that breaks IME).
+ poll: function() {
+ var cm = this.cm, input = this.textarea, prevInput = this.prevInput;
+ // Since this is called a *lot*, try to bail out as cheaply as
+ // possible when it is clear that nothing happened. hasSelection
+ // will be the case when there is a lot of text in the textarea,
+ // in which case reading its value would be expensive.
+ if (this.contextMenuPending || !cm.state.focused ||
+ (hasSelection(input) && !prevInput && !this.composing) ||
+ isReadOnly(cm) || cm.options.disableInput || cm.state.keySeq)
+ return false;
+
+ var text = input.value;
+ // If nothing changed, bail.
+ if (text == prevInput && !cm.somethingSelected()) return false;
+ // Work around nonsensical selection resetting in IE9/10, and
+ // inexplicable appearance of private area unicode characters on
+ // some key combos in Mac (#2689).
+ if (ie && ie_version >= 9 && this.hasSelection === text ||
+ mac && /[\uf700-\uf7ff]/.test(text)) {
+ cm.display.input.reset();
+ return false;
+ }
+
+ if (cm.doc.sel == cm.display.selForContextMenu) {
+ var first = text.charCodeAt(0);
+ if (first == 0x200b && !prevInput) prevInput = "\u200b";
+ if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo"); }
+ }
+ // Find the part of the input that is actually new
+ var same = 0, l = Math.min(prevInput.length, text.length);
+ while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
+
+ var self = this;
+ runInOp(cm, function() {
+ applyTextInput(cm, text.slice(same), prevInput.length - same,
+ null, self.composing ? "*compose" : null);
+
+ // Don't leave long text in the textarea, since it makes further polling slow
+ if (text.length > 1000 || text.indexOf("\n") > -1) input.value = self.prevInput = "";
+ else self.prevInput = text;
+
+ if (self.composing) {
+ self.composing.range.clear();
+ self.composing.range = cm.markText(self.composing.start, cm.getCursor("to"),
+ {className: "CodeMirror-composing"});
+ }
+ });
+ return true;
+ },
+
+ ensurePolled: function() {
+ if (this.pollingFast && this.poll()) this.pollingFast = false;
+ },
+
+ onKeyPress: function() {
+ if (ie && ie_version >= 9) this.hasSelection = null;
+ this.fastPoll();
+ },
+
+ onContextMenu: function(e) {
+ var input = this, cm = input.cm, display = cm.display, te = input.textarea;
+ var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
+ if (!pos || presto) return; // Opera is difficult.
+
+ // Reset the current text selection only if the click is done outside of the selection
+ // and 'resetSelectionOnContextMenu' option is true.
+ var reset = cm.options.resetSelectionOnContextMenu;
+ if (reset && cm.doc.sel.contains(pos) == -1)
+ operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll);
+
+ var oldCSS = te.style.cssText;
+ input.wrapper.style.position = "absolute";
+ te.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
+ "px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: " +
+ (ie ? "rgba(255, 255, 255, .05)" : "transparent") +
+ "; outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);";
+ if (webkit) var oldScrollY = window.scrollY; // Work around Chrome issue (#2712)
+ display.input.focus();
+ if (webkit) window.scrollTo(null, oldScrollY);
+ display.input.reset();
+ // Adds "Select all" to context menu in FF
+ if (!cm.somethingSelected()) te.value = input.prevInput = " ";
+ input.contextMenuPending = true;
+ display.selForContextMenu = cm.doc.sel;
+ clearTimeout(display.detectingSelectAll);
+
+ // Select-all will be greyed out if there's nothing to select, so
+ // this adds a zero-width space so that we can later check whether
+ // it got selected.
+ function prepareSelectAllHack() {
+ if (te.selectionStart != null) {
+ var selected = cm.somethingSelected();
+ var extval = "\u200b" + (selected ? te.value : "");
+ te.value = "\u21da"; // Used to catch context-menu undo
+ te.value = extval;
+ input.prevInput = selected ? "" : "\u200b";
+ te.selectionStart = 1; te.selectionEnd = extval.length;
+ // Re-set this, in case some other handler touched the
+ // selection in the meantime.
+ display.selForContextMenu = cm.doc.sel;
+ }
+ }
+ function rehide() {
+ input.contextMenuPending = false;
+ input.wrapper.style.position = "relative";
+ te.style.cssText = oldCSS;
+ if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos);
+
+ // Try to detect the user choosing select-all
+ if (te.selectionStart != null) {
+ if (!ie || (ie && ie_version < 9)) prepareSelectAllHack();
+ var i = 0, poll = function() {
+ if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+ te.selectionEnd > 0 && input.prevInput == "\u200b")
+ operation(cm, commands.selectAll)(cm);
+ else if (i++ < 10) display.detectingSelectAll = setTimeout(poll, 500);
+ else display.input.reset();
+ };
+ display.detectingSelectAll = setTimeout(poll, 200);
+ }
+ }
+
+ if (ie && ie_version >= 9) prepareSelectAllHack();
+ if (captureRightClick) {
+ e_stop(e);
+ var mouseup = function() {
+ off(window, "mouseup", mouseup);
+ setTimeout(rehide, 20);
+ };
+ on(window, "mouseup", mouseup);
+ } else {
+ setTimeout(rehide, 50);
+ }
+ },
+
+ readOnlyChanged: function(val) {
+ if (!val) this.reset();
+ },
+
+ setUneditable: nothing,
+
+ needsContentAttribute: false
+ }, TextareaInput.prototype);
+
+ // CONTENTEDITABLE INPUT STYLE
+
+ function ContentEditableInput(cm) {
+ this.cm = cm;
+ this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null;
+ this.polling = new Delayed();
+ this.gracePeriod = false;
+ }
+
+ ContentEditableInput.prototype = copyObj({
+ init: function(display) {
+ var input = this, cm = input.cm;
+ var div = input.div = display.lineDiv;
+ disableBrowserMagic(div);
+
+ on(div, "paste", function(e) { handlePaste(e, cm); })
+
+ on(div, "compositionstart", function(e) {
+ var data = e.data;
+ input.composing = {sel: cm.doc.sel, data: data, startData: data};
+ if (!data) return;
+ var prim = cm.doc.sel.primary();
+ var line = cm.getLine(prim.head.line);
+ var found = line.indexOf(data, Math.max(0, prim.head.ch - data.length));
+ if (found > -1 && found <= prim.head.ch)
+ input.composing.sel = simpleSelection(Pos(prim.head.line, found),
+ Pos(prim.head.line, found + data.length));
+ });
+ on(div, "compositionupdate", function(e) {
+ input.composing.data = e.data;
+ });
+ on(div, "compositionend", function(e) {
+ var ours = input.composing;
+ if (!ours) return;
+ if (e.data != ours.startData && !/\u200b/.test(e.data))
+ ours.data = e.data;
+ // Need a small delay to prevent other code (input event,
+ // selection polling) from doing damage when fired right after
+ // compositionend.
+ setTimeout(function() {
+ if (!ours.handled)
+ input.applyComposition(ours);
+ if (input.composing == ours)
+ input.composing = null;
+ }, 50);
+ });
+
+ on(div, "touchstart", function() {
+ input.forceCompositionEnd();
+ });
+
+ on(div, "input", function() {
+ if (input.composing) return;
+ if (isReadOnly(cm) || !input.pollContent())
+ runInOp(input.cm, function() {regChange(cm);});
+ });
+
+ function onCopyCut(e) {
+ if (cm.somethingSelected()) {
+ lastCopied = cm.getSelections();
+ if (e.type == "cut") cm.replaceSelection("", null, "cut");
+ } else if (!cm.options.lineWiseCopyCut) {
+ return;
+ } else {
+ var ranges = copyableRanges(cm);
+ lastCopied = ranges.text;
+ if (e.type == "cut") {
+ cm.operation(function() {
+ cm.setSelections(ranges.ranges, 0, sel_dontScroll);
+ cm.replaceSelection("", null, "cut");
+ });
+ }
+ }
+ // iOS exposes the clipboard API, but seems to discard content inserted into it
+ if (e.clipboardData && !ios) {
+ e.preventDefault();
+ e.clipboardData.clearData();
+ e.clipboardData.setData("text/plain", lastCopied.join("\n"));
+ } else {
+ // Old-fashioned briefly-focus-a-textarea hack
+ var kludge = hiddenTextarea(), te = kludge.firstChild;
+ cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild);
+ te.value = lastCopied.join("\n");
+ var hadFocus = document.activeElement;
+ selectInput(te);
+ setTimeout(function() {
+ cm.display.lineSpace.removeChild(kludge);
+ hadFocus.focus();
+ }, 50);
+ }
+ }
+ on(div, "copy", onCopyCut);
+ on(div, "cut", onCopyCut);
+ },
+
+ prepareSelection: function() {
+ var result = prepareSelection(this.cm, false);
+ result.focus = this.cm.state.focused;
+ return result;
+ },
+
+ showSelection: function(info) {
+ if (!info || !this.cm.display.view.length) return;
+ if (info.focus) this.showPrimarySelection();
+ this.showMultipleSelections(info);
+ },
+
+ showPrimarySelection: function() {
+ var sel = window.getSelection(), prim = this.cm.doc.sel.primary();
+ var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset);
+ var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset);
+ if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+ cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+ cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
+ return;
+
+ var start = posToDOM(this.cm, prim.from());
+ var end = posToDOM(this.cm, prim.to());
+ if (!start && !end) return;
+
+ var view = this.cm.display.view;
+ var old = sel.rangeCount && sel.getRangeAt(0);
+ if (!start) {
+ start = {node: view[0].measure.map[2], offset: 0};
+ } else if (!end) { // FIXME dangerously hacky
+ var measure = view[view.length - 1].measure;
+ var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map;
+ end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]};
+ }
+
+ try { var rng = range(start.node, start.offset, end.offset, end.node); }
+ catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+ if (rng) {
+ sel.removeAllRanges();
+ sel.addRange(rng);
+ if (old && sel.anchorNode == null) sel.addRange(old);
+ else if (gecko) this.startGracePeriod();
+ }
+ this.rememberSelection();
+ },
+
+ startGracePeriod: function() {
+ var input = this;
+ clearTimeout(this.gracePeriod);
+ this.gracePeriod = setTimeout(function() {
+ input.gracePeriod = false;
+ if (input.selectionChanged())
+ input.cm.operation(function() { input.cm.curOp.selectionChanged = true; });
+ }, 20);
+ },
+
+ showMultipleSelections: function(info) {
+ removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors);
+ removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection);
+ },
+
+ rememberSelection: function() {
+ var sel = window.getSelection();
+ this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset;
+ this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset;
+ },
+
+ selectionInEditor: function() {
+ var sel = window.getSelection();
+ if (!sel.rangeCount) return false;
+ var node = sel.getRangeAt(0).commonAncestorContainer;
+ return contains(this.div, node);
+ },
+
+ focus: function() {
+ if (this.cm.options.readOnly != "nocursor") this.div.focus();
+ },
+ blur: function() { this.div.blur(); },
+ getField: function() { return this.div; },
+
+ supportsTouch: function() { return true; },
+
+ receivedFocus: function() {
+ var input = this;
+ if (this.selectionInEditor())
+ this.pollSelection();
+ else
+ runInOp(this.cm, function() { input.cm.curOp.selectionChanged = true; });
+
+ function poll() {
+ if (input.cm.state.focused) {
+ input.pollSelection();
+ input.polling.set(input.cm.options.pollInterval, poll);
+ }
+ }
+ this.polling.set(this.cm.options.pollInterval, poll);
+ },
+
+ selectionChanged: function() {
+ var sel = window.getSelection();
+ return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+ sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset;
+ },
+
+ pollSelection: function() {
+ if (!this.composing && !this.gracePeriod && this.selectionChanged()) {
+ var sel = window.getSelection(), cm = this.cm;
+ this.rememberSelection();
+ var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset);
+ var head = domToPos(cm, sel.focusNode, sel.focusOffset);
+ if (anchor && head) runInOp(cm, function() {
+ setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll);
+ if (anchor.bad || head.bad) cm.curOp.selectionChanged = true;
+ });
+ }
+ },
+
+ pollContent: function() {
+ var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary();
+ var from = sel.from(), to = sel.to();
+ if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false;
+
+ var fromIndex;
+ if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+ var fromLine = lineNo(display.view[0].line);
+ var fromNode = display.view[0].node;
+ } else {
+ var fromLine = lineNo(display.view[fromIndex].line);
+ var fromNode = display.view[fromIndex - 1].node.nextSibling;
+ }
+ var toIndex = findViewIndex(cm, to.line);
+ if (toIndex == display.view.length - 1) {
+ var toLine = display.viewTo - 1;
+ var toNode = display.lineDiv.lastChild;
+ } else {
+ var toLine = lineNo(display.view[toIndex + 1].line) - 1;
+ var toNode = display.view[toIndex + 1].node.previousSibling;
+ }
+
+ var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine));
+ var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length));
+ while (newText.length > 1 && oldText.length > 1) {
+ if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; }
+ else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; }
+ else break;
+ }
+
+ var cutFront = 0, cutEnd = 0;
+ var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length);
+ while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+ ++cutFront;
+ var newBot = lst(newText), oldBot = lst(oldText);
+ var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+ oldBot.length - (oldText.length == 1 ? cutFront : 0));
+ while (cutEnd < maxCutEnd &&
+ newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+ ++cutEnd;
+
+ newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd);
+ newText[0] = newText[0].slice(cutFront);
+
+ var chFrom = Pos(fromLine, cutFront);
+ var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0);
+ if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+ replaceRange(cm.doc, newText, chFrom, chTo, "+input");
+ return true;
+ }
+ },
+
+ ensurePolled: function() {
+ this.forceCompositionEnd();
+ },
+ reset: function() {
+ this.forceCompositionEnd();
+ },
+ forceCompositionEnd: function() {
+ if (!this.composing || this.composing.handled) return;
+ this.applyComposition(this.composing);
+ this.composing.handled = true;
+ this.div.blur();
+ this.div.focus();
+ },
+ applyComposition: function(composing) {
+ if (isReadOnly(this.cm))
+ operation(this.cm, regChange)(this.cm)
+ else if (composing.data && composing.data != composing.startData)
+ operation(this.cm, applyTextInput)(this.cm, composing.data, 0, composing.sel);
+ },
+
+ setUneditable: function(node) {
+ node.contentEditable = "false"
+ },
+
+ onKeyPress: function(e) {
+ e.preventDefault();
+ if (!isReadOnly(this.cm))
+ operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0);
+ },
+
+ readOnlyChanged: function(val) {
+ this.div.contentEditable = String(val != "nocursor")
+ },
+
+ onContextMenu: nothing,
+ resetPosition: nothing,
+
+ needsContentAttribute: true
+ }, ContentEditableInput.prototype);
+
+ function posToDOM(cm, pos) {
+ var view = findViewForLine(cm, pos.line);
+ if (!view || view.hidden) return null;
+ var line = getLine(cm.doc, pos.line);
+ var info = mapFromLineView(view, line, pos.line);
+
+ var order = getOrder(line), side = "left";
+ if (order) {
+ var partPos = getBidiPartAt(order, pos.ch);
+ side = partPos % 2 ? "right" : "left";
+ }
+ var result = nodeAndOffsetInLineMap(info.map, pos.ch, side);
+ result.offset = result.collapse == "right" ? result.end : result.start;
+ return result;
+ }
+
+ function badPos(pos, bad) { if (bad) pos.bad = true; return pos; }
+
+ function domToPos(cm, node, offset) {
+ var lineNode;
+ if (node == cm.display.lineDiv) {
+ lineNode = cm.display.lineDiv.childNodes[offset];
+ if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true);
+ node = null; offset = 0;
+ } else {
+ for (lineNode = node;; lineNode = lineNode.parentNode) {
+ if (!lineNode || lineNode == cm.display.lineDiv) return null;
+ if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break;
+ }
+ }
+ for (var i = 0; i < cm.display.view.length; i++) {
+ var lineView = cm.display.view[i];
+ if (lineView.node == lineNode)
+ return locateNodeInLineView(lineView, node, offset);
+ }
+ }
+
+ function locateNodeInLineView(lineView, node, offset) {
+ var wrapper = lineView.text.firstChild, bad = false;
+ if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true);
+ if (node == wrapper) {
+ bad = true;
+ node = wrapper.childNodes[offset];
+ offset = 0;
+ if (!node) {
+ var line = lineView.rest ? lst(lineView.rest) : lineView.line;
+ return badPos(Pos(lineNo(line), line.text.length), bad);
+ }
+ }
+
+ var textNode = node.nodeType == 3 ? node : null, topNode = node;
+ if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+ textNode = node.firstChild;
+ if (offset) offset = textNode.nodeValue.length;
+ }
+ while (topNode.parentNode != wrapper) topNode = topNode.parentNode;
+ var measure = lineView.measure, maps = measure.maps;
+
+ function find(textNode, topNode, offset) {
+ for (var i = -1; i < (maps ? maps.length : 0); i++) {
+ var map = i < 0 ? measure.map : maps[i];
+ for (var j = 0; j < map.length; j += 3) {
+ var curNode = map[j + 2];
+ if (curNode == textNode || curNode == topNode) {
+ var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]);
+ var ch = map[j] + offset;
+ if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)];
+ return Pos(line, ch);
+ }
+ }
+ }
+ }
+ var found = find(textNode, topNode, offset);
+ if (found) return badPos(found, bad);
+
+ // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+ for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+ found = find(after, after.firstChild, 0);
+ if (found)
+ return badPos(Pos(found.line, found.ch - dist), bad);
+ else
+ dist += after.textContent.length;
+ }
+ for (var before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
+ found = find(before, before.firstChild, -1);
+ if (found)
+ return badPos(Pos(found.line, found.ch + dist), bad);
+ else
+ dist += after.textContent.length;
+ }
+ }
+
+ function domTextBetween(cm, from, to, fromLine, toLine) {
+ var text = "", closing = false, lineSep = cm.doc.lineSeparator();
+ function recognizeMarker(id) { return function(marker) { return marker.id == id; }; }
+ function walk(node) {
+ if (node.nodeType == 1) {
+ var cmText = node.getAttribute("cm-text");
+ if (cmText != null) {
+ if (cmText == "") cmText = node.textContent.replace(/\u200b/g, "");
+ text += cmText;
+ return;
+ }
+ var markerID = node.getAttribute("cm-marker"), range;
+ if (markerID) {
+ var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID));
+ if (found.length && (range = found[0].find()))
+ text += getBetween(cm.doc, range.from, range.to).join(lineSep);
+ return;
+ }
+ if (node.getAttribute("contenteditable") == "false") return;
+ for (var i = 0; i < node.childNodes.length; i++)
+ walk(node.childNodes[i]);
+ if (/^(pre|div|p)$/i.test(node.nodeName))
+ closing = true;
+ } else if (node.nodeType == 3) {
+ var val = node.nodeValue;
+ if (!val) return;
+ if (closing) {
+ text += lineSep;
+ closing = false;
+ }
+ text += val;
+ }
+ }
+ for (;;) {
+ walk(from);
+ if (from == to) break;
+ from = from.nextSibling;
+ }
+ return text;
+ }
+
+ CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput};
+
+ // SELECTION / CURSOR
+
+ // Selection objects are immutable. A new one is created every time
+ // the selection changes. A selection is one or more non-overlapping
+ // (and non-touching) ranges, sorted, and an integer that indicates
+ // which one is the primary selection (the one that's scrolled into
+ // view, that getCursor returns, etc).
+ function Selection(ranges, primIndex) {
+ this.ranges = ranges;
+ this.primIndex = primIndex;
+ }
+
+ Selection.prototype = {
+ primary: function() { return this.ranges[this.primIndex]; },
+ equals: function(other) {
+ if (other == this) return true;
+ if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var here = this.ranges[i], there = other.ranges[i];
+ if (cmp(here.anchor, there.anchor) != 0 || cmp(here.head, there.head) != 0) return false;
+ }
+ return true;
+ },
+ deepCopy: function() {
+ for (var out = [], i = 0; i < this.ranges.length; i++)
+ out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head));
+ return new Selection(out, this.primIndex);
+ },
+ somethingSelected: function() {
+ for (var i = 0; i < this.ranges.length; i++)
+ if (!this.ranges[i].empty()) return true;
+ return false;
+ },
+ contains: function(pos, end) {
+ if (!end) end = pos;
+ for (var i = 0; i < this.ranges.length; i++) {
+ var range = this.ranges[i];
+ if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+ return i;
+ }
+ return -1;
+ }
+ };
+
+ function Range(anchor, head) {
+ this.anchor = anchor; this.head = head;
+ }
+
+ Range.prototype = {
+ from: function() { return minPos(this.anchor, this.head); },
+ to: function() { return maxPos(this.anchor, this.head); },
+ empty: function() {
+ return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch;
+ }
+ };
+
+ // Take an unsorted, potentially overlapping set of ranges, and
+ // build a selection out of it. 'Consumes' ranges array (modifying
+ // it).
+ function normalizeSelection(ranges, primIndex) {
+ var prim = ranges[primIndex];
+ ranges.sort(function(a, b) { return cmp(a.from(), b.from()); });
+ primIndex = indexOf(ranges, prim);
+ for (var i = 1; i < ranges.length; i++) {
+ var cur = ranges[i], prev = ranges[i - 1];
+ if (cmp(prev.to(), cur.from()) >= 0) {
+ var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to());
+ var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head;
+ if (i <= primIndex) --primIndex;
+ ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to));
+ }
+ }
+ return new Selection(ranges, primIndex);
+ }
+
+ function simpleSelection(anchor, head) {
+ return new Selection([new Range(anchor, head || anchor)], 0);
+ }
+
+ // Most of the external API clips given positions to make sure they
+ // actually exist within the document.
+ function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
+ function clipPos(doc, pos) {
+ if (pos.line < doc.first) return Pos(doc.first, 0);
+ var last = doc.first + doc.size - 1;
+ if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
+ return clipToLen(pos, getLine(doc, pos.line).text.length);
+ }
+ function clipToLen(pos, linelen) {
+ var ch = pos.ch;
+ if (ch == null || ch > linelen) return Pos(pos.line, linelen);
+ else if (ch < 0) return Pos(pos.line, 0);
+ else return pos;
+ }
+ function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
+ function clipPosArray(doc, array) {
+ for (var out = [], i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i]);
+ return out;
+ }
+
+ // SELECTION UPDATES
+
+ // The 'scroll' parameter given to many of these indicated whether
+ // the new cursor position should be scrolled into view after
+ // modifying the selection.
+
+ // If shift is held or the extend flag is set, extends a range to
+ // include a given position (and optionally a second position).
+ // Otherwise, simply returns the range between the given positions.
+ // Used for cursor motion and such.
+ function extendRange(doc, range, head, other) {
+ if (doc.cm && doc.cm.display.shift || doc.extend) {
+ var anchor = range.anchor;
+ if (other) {
+ var posBefore = cmp(head, anchor) < 0;
+ if (posBefore != (cmp(other, anchor) < 0)) {
+ anchor = head;
+ head = other;
+ } else if (posBefore != (cmp(head, other) < 0)) {
+ head = other;
+ }
+ }
+ return new Range(anchor, head);
+ } else {
+ return new Range(other || head, head);
+ }
+ }
+
+ // Extend the primary selection range, discard the rest.
+ function extendSelection(doc, head, other, options) {
+ setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options);
+ }
+
+ // Extend all selections (pos is an array of selections with length
+ // equal the number of selections)
+ function extendSelections(doc, heads, options) {
+ for (var out = [], i = 0; i < doc.sel.ranges.length; i++)
+ out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null);
+ var newSel = normalizeSelection(out, doc.sel.primIndex);
+ setSelection(doc, newSel, options);
+ }
+
+ // Updates a single range in the selection.
+ function replaceOneSelection(doc, i, range, options) {
+ var ranges = doc.sel.ranges.slice(0);
+ ranges[i] = range;
+ setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options);
+ }
+
+ // Reset the selection to a single range.
+ function setSimpleSelection(doc, anchor, head, options) {
+ setSelection(doc, simpleSelection(anchor, head), options);
+ }
+
+ // Give beforeSelectionChange handlers a change to influence a
+ // selection update.
+ function filterSelectionChange(doc, sel) {
+ var obj = {
+ ranges: sel.ranges,
+ update: function(ranges) {
+ this.ranges = [];
+ for (var i = 0; i < ranges.length; i++)
+ this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+ clipPos(doc, ranges[i].head));
+ }
+ };
+ signal(doc, "beforeSelectionChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
+ if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1);
+ else return sel;
+ }
+
+ function setSelectionReplaceHistory(doc, sel, options) {
+ var done = doc.history.done, last = lst(done);
+ if (last && last.ranges) {
+ done[done.length - 1] = sel;
+ setSelectionNoUndo(doc, sel, options);
+ } else {
+ setSelection(doc, sel, options);
+ }
+ }
+
+ // Set a new selection.
+ function setSelection(doc, sel, options) {
+ setSelectionNoUndo(doc, sel, options);
+ addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options);
+ }
+
+ function setSelectionNoUndo(doc, sel, options) {
+ if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+ sel = filterSelectionChange(doc, sel);
+
+ var bias = options && options.bias ||
+ (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1);
+ setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true));
+
+ if (!(options && options.scroll === false) && doc.cm)
+ ensureCursorVisible(doc.cm);
+ }
+
+ function setSelectionInner(doc, sel) {
+ if (sel.equals(doc.sel)) return;
+
+ doc.sel = sel;
+
+ if (doc.cm) {
+ doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true;
+ signalCursorActivity(doc.cm);
+ }
+ signalLater(doc, "cursorActivity", doc);
+ }
+
+ // Verify that the selection does not partially select any atomic
+ // marked ranges.
+ function reCheckSelection(doc) {
+ setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll);
+ }
+
+ // Return a selection that does not partially select any atomic
+ // ranges.
+ function skipAtomicInSelection(doc, sel, bias, mayClear) {
+ var out;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ var newAnchor = skipAtomic(doc, range.anchor, bias, mayClear);
+ var newHead = skipAtomic(doc, range.head, bias, mayClear);
+ if (out || newAnchor != range.anchor || newHead != range.head) {
+ if (!out) out = sel.ranges.slice(0, i);
+ out[i] = new Range(newAnchor, newHead);
+ }
+ }
+ return out ? normalizeSelection(out, sel.primIndex) : sel;
+ }
+
+ // Ensure a given position is not inside an atomic range.
+ function skipAtomic(doc, pos, bias, mayClear) {
+ var flipped = false, curPos = pos;
+ var dir = bias || 1;
+ doc.cantEdit = false;
+ search: for (;;) {
+ var line = getLine(doc, curPos.line);
+ if (line.markedSpans) {
+ for (var i = 0; i < line.markedSpans.length; ++i) {
+ var sp = line.markedSpans[i], m = sp.marker;
+ if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
+ (sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
+ if (mayClear) {
+ signal(m, "beforeCursorEnter");
+ if (m.explicitlyCleared) {
+ if (!line.markedSpans) break;
+ else {--i; continue;}
+ }
+ }
+ if (!m.atomic) continue;
+ var newPos = m.find(dir < 0 ? -1 : 1);
+ if (cmp(newPos, curPos) == 0) {
+ newPos.ch += dir;
+ if (newPos.ch < 0) {
+ if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
+ else newPos = null;
+ } else if (newPos.ch > line.text.length) {
+ if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
+ else newPos = null;
+ }
+ if (!newPos) {
+ if (flipped) {
+ // Driven in a corner -- no valid cursor position found at all
+ // -- try again *with* clearing, if we didn't already
+ if (!mayClear) return skipAtomic(doc, pos, bias, true);
+ // Otherwise, turn off editing until further notice, and return the start of the doc
+ doc.cantEdit = true;
+ return Pos(doc.first, 0);
+ }
+ flipped = true; newPos = pos; dir = -dir;
+ }
+ }
+ curPos = newPos;
+ continue search;
+ }
+ }
+ }
+ return curPos;
+ }
+ }
+
+ // SELECTION DRAWING
+
+ function updateSelection(cm) {
+ cm.display.input.showSelection(cm.display.input.prepareSelection());
+ }
+
+ function prepareSelection(cm, primary) {
+ var doc = cm.doc, result = {};
+ var curFragment = result.cursors = document.createDocumentFragment();
+ var selFragment = result.selection = document.createDocumentFragment();
+
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ if (primary === false && i == doc.sel.primIndex) continue;
+ var range = doc.sel.ranges[i];
+ var collapsed = range.empty();
+ if (collapsed || cm.options.showCursorWhenSelecting)
+ drawSelectionCursor(cm, range.head, curFragment);
+ if (!collapsed)
+ drawSelectionRange(cm, range, selFragment);
+ }
+ return result;
+ }
+
+ // Draws a cursor for the given range
+ function drawSelectionCursor(cm, head, output) {
+ var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine);
+
+ var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"));
+ cursor.style.left = pos.left + "px";
+ cursor.style.top = pos.top + "px";
+ cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
+
+ if (pos.other) {
+ // Secondary cursor, shown when on a 'jump' in bi-directional text
+ var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"));
+ otherCursor.style.display = "";
+ otherCursor.style.left = pos.other.left + "px";
+ otherCursor.style.top = pos.other.top + "px";
+ otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
+ }
+ }
+
+ // Draws the given range as a highlighted selection
+ function drawSelectionRange(cm, range, output) {
+ var display = cm.display, doc = cm.doc;
+ var fragment = document.createDocumentFragment();
+ var padding = paddingH(cm.display), leftSide = padding.left;
+ var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right;
+
+ function add(left, top, width, bottom) {
+ if (top < 0) top = 0;
+ top = Math.round(top);
+ bottom = Math.round(bottom);
+ fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
+ "px; top: " + top + "px; width: " + (width == null ? rightSide - left : width) +
+ "px; height: " + (bottom - top) + "px"));
+ }
+
+ function drawForLine(line, fromArg, toArg) {
+ var lineObj = getLine(doc, line);
+ var lineLen = lineObj.text.length;
+ var start, end;
+ function coords(ch, bias) {
+ return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
+ }
+
+ iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
+ var leftPos = coords(from, "left"), rightPos, left, right;
+ if (from == to) {
+ rightPos = leftPos;
+ left = right = leftPos.left;
+ } else {
+ rightPos = coords(to - 1, "right");
+ if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
+ left = leftPos.left;
+ right = rightPos.right;
+ }
+ if (fromArg == null && from == 0) left = leftSide;
+ if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
+ add(left, leftPos.top, null, leftPos.bottom);
+ left = leftSide;
+ if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
+ }
+ if (toArg == null && to == lineLen) right = rightSide;
+ if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
+ start = leftPos;
+ if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
+ end = rightPos;
+ if (left < leftSide + 1) left = leftSide;
+ add(left, rightPos.top, right - left, rightPos.bottom);
+ });
+ return {start: start, end: end};
+ }
+
+ var sFrom = range.from(), sTo = range.to();
+ if (sFrom.line == sTo.line) {
+ drawForLine(sFrom.line, sFrom.ch, sTo.ch);
+ } else {
+ var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line);
+ var singleVLine = visualLine(fromLine) == visualLine(toLine);
+ var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end;
+ var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start;
+ if (singleVLine) {
+ if (leftEnd.top < rightStart.top - 2) {
+ add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
+ add(leftSide, rightStart.top, rightStart.left, rightStart.bottom);
+ } else {
+ add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
+ }
+ }
+ if (leftEnd.bottom < rightStart.top)
+ add(leftSide, leftEnd.bottom, null, rightStart.top);
+ }
+
+ output.appendChild(fragment);
+ }
+
+ // Cursor-blinking
+ function restartBlink(cm) {
+ if (!cm.state.focused) return;
+ var display = cm.display;
+ clearInterval(display.blinker);
+ var on = true;
+ display.cursorDiv.style.visibility = "";
+ if (cm.options.cursorBlinkRate > 0)
+ display.blinker = setInterval(function() {
+ display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden";
+ }, cm.options.cursorBlinkRate);
+ else if (cm.options.cursorBlinkRate < 0)
+ display.cursorDiv.style.visibility = "hidden";
+ }
+
+ // HIGHLIGHT WORKER
+
+ function startWorker(cm, time) {
+ if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+ cm.state.highlight.set(time, bind(highlightWorker, cm));
+ }
+
+ function highlightWorker(cm) {
+ var doc = cm.doc;
+ if (doc.frontier < doc.first) doc.frontier = doc.first;
+ if (doc.frontier >= cm.display.viewTo) return;
+ var end = +new Date + cm.options.workTime;
+ var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
+ var changedLines = [];
+
+ doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function(line) {
+ if (doc.frontier >= cm.display.viewFrom) { // Visible
+ var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength;
+ var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true);
+ line.styles = highlighted.styles;
+ var oldCls = line.styleClasses, newCls = highlighted.classes;
+ if (newCls) line.styleClasses = newCls;
+ else if (oldCls) line.styleClasses = null;
+ var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+ oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass);
+ for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
+ if (ischange) changedLines.push(doc.frontier);
+ line.stateAfter = tooLong ? state : copyState(doc.mode, state);
+ } else {
+ if (line.text.length <= cm.options.maxHighlightLength)
+ processLine(cm, line.text, state);
+ line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
+ }
+ ++doc.frontier;
+ if (+new Date > end) {
+ startWorker(cm, cm.options.workDelay);
+ return true;
+ }
+ });
+ if (changedLines.length) runInOp(cm, function() {
+ for (var i = 0; i < changedLines.length; i++)
+ regLineChange(cm, changedLines[i], "text");
+ });
+ }
+
+ // Finds the line to start with when starting a parse. Tries to
+ // find a line with a stateAfter, so that it can start with a
+ // valid state. If that fails, it returns the line with the
+ // smallest indentation, which tends to need the least context to
+ // parse correctly.
+ function findStartLine(cm, n, precise) {
+ var minindent, minline, doc = cm.doc;
+ var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100);
+ for (var search = n; search > lim; --search) {
+ if (search <= doc.first) return doc.first;
+ var line = getLine(doc, search - 1);
+ if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
+ var indented = countColumn(line.text, null, cm.options.tabSize);
+ if (minline == null || minindent > indented) {
+ minline = search - 1;
+ minindent = indented;
+ }
+ }
+ return minline;
+ }
+
+ function getStateBefore(cm, n, precise) {
+ var doc = cm.doc, display = cm.display;
+ if (!doc.mode.startState) return true;
+ var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
+ if (!state) state = startState(doc.mode);
+ else state = copyState(doc.mode, state);
+ doc.iter(pos, n, function(line) {
+ processLine(cm, line.text, state);
+ var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo;
+ line.stateAfter = save ? copyState(doc.mode, state) : null;
+ ++pos;
+ });
+ if (precise) doc.frontier = pos;
+ return state;
+ }
+
+ // POSITION MEASUREMENT
+
+ function paddingTop(display) {return display.lineSpace.offsetTop;}
+ function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
+ function paddingH(display) {
+ if (display.cachedPaddingH) return display.cachedPaddingH;
+ var e = removeChildrenAndAdd(display.measure, elt("pre", "x"));
+ var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle;
+ var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)};
+ if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data;
+ return data;
+ }
+
+ function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth; }
+ function displayWidth(cm) {
+ return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth;
+ }
+ function displayHeight(cm) {
+ return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight;
+ }
+
+ // Ensure the lineView.wrapping.heights array is populated. This is
+ // an array of bottom offsets for the lines that make up a drawn
+ // line. When lineWrapping is on, there might be more than one
+ // height.
+ function ensureLineHeights(cm, lineView, rect) {
+ var wrapping = cm.options.lineWrapping;
+ var curWidth = wrapping && displayWidth(cm);
+ if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+ var heights = lineView.measure.heights = [];
+ if (wrapping) {
+ lineView.measure.width = curWidth;
+ var rects = lineView.text.firstChild.getClientRects();
+ for (var i = 0; i < rects.length - 1; i++) {
+ var cur = rects[i], next = rects[i + 1];
+ if (Math.abs(cur.bottom - next.bottom) > 2)
+ heights.push((cur.bottom + next.top) / 2 - rect.top);
+ }
+ }
+ heights.push(rect.bottom - rect.top);
+ }
+ }
+
+ // Find a line map (mapping character offsets to text nodes) and a
+ // measurement cache for the given line number. (A line view might
+ // contain multiple lines when collapsed ranges are present.)
+ function mapFromLineView(lineView, line, lineN) {
+ if (lineView.line == line)
+ return {map: lineView.measure.map, cache: lineView.measure.cache};
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineView.rest[i] == line)
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]};
+ for (var i = 0; i < lineView.rest.length; i++)
+ if (lineNo(lineView.rest[i]) > lineN)
+ return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true};
+ }
+
+ // Render a line into the hidden node display.externalMeasured. Used
+ // when measurement is needed for a line that's not in the viewport.
+ function updateExternalMeasurement(cm, line) {
+ line = visualLine(line);
+ var lineN = lineNo(line);
+ var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN);
+ view.lineN = lineN;
+ var built = view.built = buildLineContent(cm, view);
+ view.text = built.pre;
+ removeChildrenAndAdd(cm.display.lineMeasure, built.pre);
+ return view;
+ }
+
+ // Get a {top, bottom, left, right} box (in line-local coordinates)
+ // for a given character.
+ function measureChar(cm, line, ch, bias) {
+ return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias);
+ }
+
+ // Find a line view that corresponds to the given line number.
+ function findViewForLine(cm, lineN) {
+ if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+ return cm.display.view[findViewIndex(cm, lineN)];
+ var ext = cm.display.externalMeasured;
+ if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+ return ext;
+ }
+
+ // Measurement can be split in two steps, the set-up work that
+ // applies to the whole line, and the measurement of the actual
+ // character. Functions like coordsChar, that need to do a lot of
+ // measurements in a row, can thus ensure that the set-up work is
+ // only done once.
+ function prepareMeasureForLine(cm, line) {
+ var lineN = lineNo(line);
+ var view = findViewForLine(cm, lineN);
+ if (view && !view.text) {
+ view = null;
+ } else if (view && view.changes) {
+ updateLineForChanges(cm, view, lineN, getDimensions(cm));
+ cm.curOp.forceUpdate = true;
+ }
+ if (!view)
+ view = updateExternalMeasurement(cm, line);
+
+ var info = mapFromLineView(view, line, lineN);
+ return {
+ line: line, view: view, rect: null,
+ map: info.map, cache: info.cache, before: info.before,
+ hasHeights: false
+ };
+ }
+
+ // Given a prepared measurement object, measures the position of an
+ // actual character (or fetches it from the cache).
+ function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+ if (prepared.before) ch = -1;
+ var key = ch + (bias || ""), found;
+ if (prepared.cache.hasOwnProperty(key)) {
+ found = prepared.cache[key];
+ } else {
+ if (!prepared.rect)
+ prepared.rect = prepared.view.text.getBoundingClientRect();
+ if (!prepared.hasHeights) {
+ ensureLineHeights(cm, prepared.view, prepared.rect);
+ prepared.hasHeights = true;
+ }
+ found = measureCharInner(cm, prepared, ch, bias);
+ if (!found.bogus) prepared.cache[key] = found;
+ }
+ return {left: found.left, right: found.right,
+ top: varHeight ? found.rtop : found.top,
+ bottom: varHeight ? found.rbottom : found.bottom};
+ }
+
+ var nullRect = {left: 0, right: 0, top: 0, bottom: 0};
+
+ function nodeAndOffsetInLineMap(map, ch, bias) {
+ var node, start, end, collapse;
+ // First, search the line map for the text node corresponding to,
+ // or closest to, the target character.
+ for (var i = 0; i < map.length; i += 3) {
+ var mStart = map[i], mEnd = map[i + 1];
+ if (ch < mStart) {
+ start = 0; end = 1;
+ collapse = "left";
+ } else if (ch < mEnd) {
+ start = ch - mStart;
+ end = start + 1;
+ } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+ end = mEnd - mStart;
+ start = end - 1;
+ if (ch >= mEnd) collapse = "right";
+ }
+ if (start != null) {
+ node = map[i + 2];
+ if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+ collapse = bias;
+ if (bias == "left" && start == 0)
+ while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+ node = map[(i -= 3) + 2];
+ collapse = "left";
+ }
+ if (bias == "right" && start == mEnd - mStart)
+ while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+ node = map[(i += 3) + 2];
+ collapse = "right";
+ }
+ break;
+ }
+ }
+ return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd};
+ }
+
+ function measureCharInner(cm, prepared, ch, bias) {
+ var place = nodeAndOffsetInLineMap(prepared.map, ch, bias);
+ var node = place.node, start = place.start, end = place.end, collapse = place.collapse;
+
+ var rect;
+ if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+ for (var i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+ while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start;
+ while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end;
+ if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) {
+ rect = node.parentNode.getBoundingClientRect();
+ } else if (ie && cm.options.lineWrapping) {
+ var rects = range(node, start, end).getClientRects();
+ if (rects.length)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else
+ rect = nullRect;
+ } else {
+ rect = range(node, start, end).getBoundingClientRect() || nullRect;
+ }
+ if (rect.left || rect.right || start == 0) break;
+ end = start;
+ start = start - 1;
+ collapse = "right";
+ }
+ if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect);
+ } else { // If it is a widget, simply get the box for the whole widget.
+ if (start > 0) collapse = bias = "right";
+ var rects;
+ if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+ rect = rects[bias == "right" ? rects.length - 1 : 0];
+ else
+ rect = node.getBoundingClientRect();
+ }
+ if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+ var rSpan = node.parentNode.getClientRects()[0];
+ if (rSpan)
+ rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom};
+ else
+ rect = nullRect;
+ }
+
+ var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top;
+ var mid = (rtop + rbot) / 2;
+ var heights = prepared.view.measure.heights;
+ for (var i = 0; i < heights.length - 1; i++)
+ if (mid < heights[i]) break;
+ var top = i ? heights[i - 1] : 0, bot = heights[i];
+ var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+ right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+ top: top, bottom: bot};
+ if (!rect.left && !rect.right) result.bogus = true;
+ if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; }
+
+ return result;
+ }
+
+ // Work around problem with bounding client rects on ranges being
+ // returned incorrectly when zoomed on IE10 and below.
+ function maybeUpdateRectForZooming(measure, rect) {
+ if (!window.screen || screen.logicalXDPI == null ||
+ screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+ return rect;
+ var scaleX = screen.logicalXDPI / screen.deviceXDPI;
+ var scaleY = screen.logicalYDPI / screen.deviceYDPI;
+ return {left: rect.left * scaleX, right: rect.right * scaleX,
+ top: rect.top * scaleY, bottom: rect.bottom * scaleY};
+ }
+
+ function clearLineMeasurementCacheFor(lineView) {
+ if (lineView.measure) {
+ lineView.measure.cache = {};
+ lineView.measure.heights = null;
+ if (lineView.rest) for (var i = 0; i < lineView.rest.length; i++)
+ lineView.measure.caches[i] = {};
+ }
+ }
+
+ function clearLineMeasurementCache(cm) {
+ cm.display.externalMeasure = null;
+ removeChildren(cm.display.lineMeasure);
+ for (var i = 0; i < cm.display.view.length; i++)
+ clearLineMeasurementCacheFor(cm.display.view[i]);
+ }
+
+ function clearCaches(cm) {
+ clearLineMeasurementCache(cm);
+ cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null;
+ if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
+ cm.display.lineNumChars = null;
+ }
+
+ function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
+ function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
+
+ // Converts a {top, bottom, left, right} box from line-local
+ // coordinates into another coordinate system. Context may be one of
+ // "line", "div" (display.lineDiv), "local"/null (editor), "window",
+ // or "page".
+ function intoCoordSystem(cm, lineObj, rect, context) {
+ if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
+ var size = widgetHeight(lineObj.widgets[i]);
+ rect.top += size; rect.bottom += size;
+ }
+ if (context == "line") return rect;
+ if (!context) context = "local";
+ var yOff = heightAtLine(lineObj);
+ if (context == "local") yOff += paddingTop(cm.display);
+ else yOff -= cm.display.viewOffset;
+ if (context == "page" || context == "window") {
+ var lOff = cm.display.lineSpace.getBoundingClientRect();
+ yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
+ var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
+ rect.left += xOff; rect.right += xOff;
+ }
+ rect.top += yOff; rect.bottom += yOff;
+ return rect;
+ }
+
+ // Coverts a box from "div" coords to another coordinate system.
+ // Context may be "window", "page", "div", or "local"/null.
+ function fromCoordSystem(cm, coords, context) {
+ if (context == "div") return coords;
+ var left = coords.left, top = coords.top;
+ // First move into "page" coordinate system
+ if (context == "page") {
+ left -= pageScrollX();
+ top -= pageScrollY();
+ } else if (context == "local" || !context) {
+ var localBox = cm.display.sizer.getBoundingClientRect();
+ left += localBox.left;
+ top += localBox.top;
+ }
+
+ var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect();
+ return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
+ }
+
+ function charCoords(cm, pos, context, lineObj, bias) {
+ if (!lineObj) lineObj = getLine(cm.doc, pos.line);
+ return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context);
+ }
+
+ // Returns a box for a given cursor position, which may have an
+ // 'other' property containing the position of the secondary cursor
+ // on a bidi boundary.
+ function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+ lineObj = lineObj || getLine(cm.doc, pos.line);
+ if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj);
+ function get(ch, right) {
+ var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight);
+ if (right) m.left = m.right; else m.right = m.left;
+ return intoCoordSystem(cm, lineObj, m, context);
+ }
+ function getBidi(ch, partPos) {
+ var part = order[partPos], right = part.level % 2;
+ if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
+ part = order[--partPos];
+ ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
+ right = true;
+ } else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
+ part = order[++partPos];
+ ch = bidiLeft(part) - part.level % 2;
+ right = false;
+ }
+ if (right && ch == part.to && ch > part.from) return get(ch - 1);
+ return get(ch, right);
+ }
+ var order = getOrder(lineObj), ch = pos.ch;
+ if (!order) return get(ch);
+ var partPos = getBidiPartAt(order, ch);
+ var val = getBidi(ch, partPos);
+ if (bidiOther != null) val.other = getBidi(ch, bidiOther);
+ return val;
+ }
+
+ // Used to cheaply estimate the coordinates for a position. Used for
+ // intermediate scroll updates.
+ function estimateCoords(cm, pos) {
+ var left = 0, pos = clipPos(cm.doc, pos);
+ if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch;
+ var lineObj = getLine(cm.doc, pos.line);
+ var top = heightAtLine(lineObj) + paddingTop(cm.display);
+ return {left: left, right: left, top: top, bottom: top + lineObj.height};
+ }
+
+ // Positions returned by coordsChar contain some extra information.
+ // xRel is the relative x position of the input coordinates compared
+ // to the found position (so xRel > 0 means the coordinates are to
+ // the right of the character position, for example). When outside
+ // is true, that means the coordinates lie outside the line's
+ // vertical range.
+ function PosWithInfo(line, ch, outside, xRel) {
+ var pos = Pos(line, ch);
+ pos.xRel = xRel;
+ if (outside) pos.outside = true;
+ return pos;
+ }
+
+ // Compute the character position closest to the given coordinates.
+ // Input must be lineSpace-local ("div" coordinate system).
+ function coordsChar(cm, x, y) {
+ var doc = cm.doc;
+ y += cm.display.viewOffset;
+ if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
+ var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
+ if (lineN > last)
+ return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
+ if (x < 0) x = 0;
+
+ var lineObj = getLine(doc, lineN);
+ for (;;) {
+ var found = coordsCharInner(cm, lineObj, lineN, x, y);
+ var merged = collapsedSpanAtEnd(lineObj);
+ var mergedPos = merged && merged.find(0, true);
+ if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+ lineN = lineNo(lineObj = mergedPos.to.line);
+ else
+ return found;
+ }
+ }
+
+ function coordsCharInner(cm, lineObj, lineNo, x, y) {
+ var innerOff = y - heightAtLine(lineObj);
+ var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
+ var preparedMeasure = prepareMeasureForLine(cm, lineObj);
+
+ function getX(ch) {
+ var sp = cursorCoords(cm, Pos(lineNo, ch), "line", lineObj, preparedMeasure);
+ wrongLine = true;
+ if (innerOff > sp.bottom) return sp.left - adjust;
+ else if (innerOff < sp.top) return sp.left + adjust;
+ else wrongLine = false;
+ return sp.left;
+ }
+
+ var bidi = getOrder(lineObj), dist = lineObj.text.length;
+ var from = lineLeft(lineObj), to = lineRight(lineObj);
+ var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
+
+ if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
+ // Do a binary search between these bounds.
+ for (;;) {
+ if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
+ var ch = x < fromX || x - fromX <= toX - x ? from : to;
+ var xDiff = x - (ch == from ? fromX : toX);
+ while (isExtendingChar(lineObj.text.charAt(ch))) ++ch;
+ var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
+ xDiff < -1 ? -1 : xDiff > 1 ? 1 : 0);
+ return pos;
+ }
+ var step = Math.ceil(dist / 2), middle = from + step;
+ if (bidi) {
+ middle = from;
+ for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
+ }
+ var middleX = getX(middle);
+ if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
+ else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
+ }
+ }
+
+ var measureText;
+ // Compute the default text height.
+ function textHeight(display) {
+ if (display.cachedTextHeight != null) return display.cachedTextHeight;
+ if (measureText == null) {
+ measureText = elt("pre");
+ // Measure a bunch of lines, for browsers that compute
+ // fractional heights.
+ for (var i = 0; i < 49; ++i) {
+ measureText.appendChild(document.createTextNode("x"));
+ measureText.appendChild(elt("br"));
+ }
+ measureText.appendChild(document.createTextNode("x"));
+ }
+ removeChildrenAndAdd(display.measure, measureText);
+ var height = measureText.offsetHeight / 50;
+ if (height > 3) display.cachedTextHeight = height;
+ removeChildren(display.measure);
+ return height || 1;
+ }
+
+ // Compute the default character width.
+ function charWidth(display) {
+ if (display.cachedCharWidth != null) return display.cachedCharWidth;
+ var anchor = elt("span", "xxxxxxxxxx");
+ var pre = elt("pre", [anchor]);
+ removeChildrenAndAdd(display.measure, pre);
+ var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10;
+ if (width > 2) display.cachedCharWidth = width;
+ return width || 10;
+ }
+
+ // OPERATIONS
+
+ // Operations are used to wrap a series of changes to the editor
+ // state in such a way that each change won't have to update the
+ // cursor and display (which would be awkward, slow, and
+ // error-prone). Instead, display updates are batched and then all
+ // combined and executed at once.
+
+ var operationGroup = null;
+
+ var nextOpId = 0;
+ // Start a new operation.
+ function startOperation(cm) {
+ cm.curOp = {
+ cm: cm,
+ viewChanged: false, // Flag that indicates that lines might need to be redrawn
+ startHeight: cm.doc.height, // Used to detect need to update scrollbar
+ forceUpdate: false, // Used to force a redraw
+ updateInput: null, // Whether to reset the input textarea
+ typing: false, // Whether this reset should be careful to leave existing text (for compositing)
+ changeObjs: null, // Accumulated changes, for firing change events
+ cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+ cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+ selectionChanged: false, // Whether the selection needs to be redrawn
+ updateMaxLine: false, // Set when the widest line needs to be determined anew
+ scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+ scrollToPos: null, // Used to scroll to a specific position
+ focus: false,
+ id: ++nextOpId // Unique ID
+ };
+ if (operationGroup) {
+ operationGroup.ops.push(cm.curOp);
+ } else {
+ cm.curOp.ownsGroup = operationGroup = {
+ ops: [cm.curOp],
+ delayedCallbacks: []
+ };
+ }
+ }
+
+ function fireCallbacksForOps(group) {
+ // Calls delayed callbacks and cursorActivity handlers until no
+ // new ones appear
+ var callbacks = group.delayedCallbacks, i = 0;
+ do {
+ for (; i < callbacks.length; i++)
+ callbacks[i].call(null);
+ for (var j = 0; j < group.ops.length; j++) {
+ var op = group.ops[j];
+ if (op.cursorActivityHandlers)
+ while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+ op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm);
+ }
+ } while (i < callbacks.length);
+ }
+
+ // Finish an operation, updating the display and signalling delayed events
+ function endOperation(cm) {
+ var op = cm.curOp, group = op.ownsGroup;
+ if (!group) return;
+
+ try { fireCallbacksForOps(group); }
+ finally {
+ operationGroup = null;
+ for (var i = 0; i < group.ops.length; i++)
+ group.ops[i].cm.curOp = null;
+ endOperations(group);
+ }
+ }
+
+ // The DOM updates done when an operation finishes are batched so
+ // that the minimum number of relayouts are required.
+ function endOperations(group) {
+ var ops = group.ops;
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_R1(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+ endOperation_W1(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_R2(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Write DOM (maybe)
+ endOperation_W2(ops[i]);
+ for (var i = 0; i < ops.length; i++) // Read DOM
+ endOperation_finish(ops[i]);
+ }
+
+ function endOperation_R1(op) {
+ var cm = op.cm, display = cm.display;
+ maybeClipScrollbars(cm);
+ if (op.updateMaxLine) findMaxLine(cm);
+
+ op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+ op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+ op.scrollToPos.to.line >= display.viewTo) ||
+ display.maxLineChanged && cm.options.lineWrapping;
+ op.update = op.mustUpdate &&
+ new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate);
+ }
+
+ function endOperation_W1(op) {
+ op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update);
+ }
+
+ function endOperation_R2(op) {
+ var cm = op.cm, display = cm.display;
+ if (op.updatedDisplay) updateHeightsInViewport(cm);
+
+ op.barMeasure = measureForScrollbars(cm);
+
+ // If the max line changed since it was last measured, measure it,
+ // and ensure the document's width matches it.
+ // updateDisplay_W2 will use these properties to do the actual resizing
+ if (display.maxLineChanged && !cm.options.lineWrapping) {
+ op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3;
+ cm.display.sizerWidth = op.adjustWidthTo;
+ op.barMeasure.scrollWidth =
+ Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth);
+ op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm));
+ }
+
+ if (op.updatedDisplay || op.selectionChanged)
+ op.preparedSelection = display.input.prepareSelection();
+ }
+
+ function endOperation_W2(op) {
+ var cm = op.cm;
+
+ if (op.adjustWidthTo != null) {
+ cm.display.sizer.style.minWidth = op.adjustWidthTo + "px";
+ if (op.maxScrollLeft < cm.doc.scrollLeft)
+ setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true);
+ cm.display.maxLineChanged = false;
+ }
+
+ if (op.preparedSelection)
+ cm.display.input.showSelection(op.preparedSelection);
+ if (op.updatedDisplay)
+ setDocumentHeight(cm, op.barMeasure);
+ if (op.updatedDisplay || op.startHeight != cm.doc.height)
+ updateScrollbars(cm, op.barMeasure);
+
+ if (op.selectionChanged) restartBlink(cm);
+
+ if (cm.state.focused && op.updateInput)
+ cm.display.input.reset(op.typing);
+ if (op.focus && op.focus == activeElt()) ensureFocus(op.cm);
+ }
+
+ function endOperation_finish(op) {
+ var cm = op.cm, display = cm.display, doc = cm.doc;
+
+ if (op.updatedDisplay) postUpdateDisplay(cm, op.update);
+
+ // Abort mouse wheel delta measurement, when scrolling explicitly
+ if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+ display.wheelStartX = display.wheelStartY = null;
+
+ // Propagate the scroll position to the actual DOM scroller
+ if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
+ doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop));
+ display.scrollbars.setScrollTop(doc.scrollTop);
+ display.scroller.scrollTop = doc.scrollTop;
+ }
+ if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
+ doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - displayWidth(cm), op.scrollLeft));
+ display.scrollbars.setScrollLeft(doc.scrollLeft);
+ display.scroller.scrollLeft = doc.scrollLeft;
+ alignHorizontally(cm);
+ }
+ // If we need to scroll a specific position into view, do so.
+ if (op.scrollToPos) {
+ var coords = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+ clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin);
+ if (op.scrollToPos.isCursor && cm.state.focused) maybeScrollWindow(cm, coords);
+ }
+
+ // Fire events for markers that are hidden/unidden by editing or
+ // undoing
+ var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
+ if (hidden) for (var i = 0; i < hidden.length; ++i)
+ if (!hidden[i].lines.length) signal(hidden[i], "hide");
+ if (unhidden) for (var i = 0; i < unhidden.length; ++i)
+ if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
+
+ if (display.wrapper.offsetHeight)
+ doc.scrollTop = cm.display.scroller.scrollTop;
+
+ // Fire change events, and delayed event handlers
+ if (op.changeObjs)
+ signal(cm, "changes", cm, op.changeObjs);
+ if (op.update)
+ op.update.finish();
+ }
+
+ // Run the given function in an operation
+ function runInOp(cm, f) {
+ if (cm.curOp) return f();
+ startOperation(cm);
+ try { return f(); }
+ finally { endOperation(cm); }
+ }
+ // Wraps a function in an operation. Returns the wrapped function.
+ function operation(cm, f) {
+ return function() {
+ if (cm.curOp) return f.apply(cm, arguments);
+ startOperation(cm);
+ try { return f.apply(cm, arguments); }
+ finally { endOperation(cm); }
+ };
+ }
+ // Used to add methods to editor and doc instances, wrapping them in
+ // operations.
+ function methodOp(f) {
+ return function() {
+ if (this.curOp) return f.apply(this, arguments);
+ startOperation(this);
+ try { return f.apply(this, arguments); }
+ finally { endOperation(this); }
+ };
+ }
+ function docMethodOp(f) {
+ return function() {
+ var cm = this.cm;
+ if (!cm || cm.curOp) return f.apply(this, arguments);
+ startOperation(cm);
+ try { return f.apply(this, arguments); }
+ finally { endOperation(cm); }
+ };
+ }
+
+ // VIEW TRACKING
+
+ // These objects are used to represent the visible (currently drawn)
+ // part of the document. A LineView may correspond to multiple
+ // logical lines, if those are connected by collapsed ranges.
+ function LineView(doc, line, lineN) {
+ // The starting line
+ this.line = line;
+ // Continuing lines, if any
+ this.rest = visualLineContinued(line);
+ // Number of logical lines in this visual line
+ this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1;
+ this.node = this.text = null;
+ this.hidden = lineIsHidden(doc, line);
+ }
+
+ // Create a range of LineView objects for the given lines.
+ function buildViewArray(cm, from, to) {
+ var array = [], nextPos;
+ for (var pos = from; pos < to; pos = nextPos) {
+ var view = new LineView(cm.doc, getLine(cm.doc, pos), pos);
+ nextPos = pos + view.size;
+ array.push(view);
+ }
+ return array;
+ }
+
+ // Updates the display.view data structure for a given change to the
+ // document. From and to are in pre-change coordinates. Lendiff is
+ // the amount of lines added or subtracted by the change. This is
+ // used for changes that span multiple lines, or change the way
+ // lines are divided into visual lines. regLineChange (below)
+ // registers single-line changes.
+ function regChange(cm, from, to, lendiff) {
+ if (from == null) from = cm.doc.first;
+ if (to == null) to = cm.doc.first + cm.doc.size;
+ if (!lendiff) lendiff = 0;
+
+ var display = cm.display;
+ if (lendiff && to < display.viewTo &&
+ (display.updateLineNumbers == null || display.updateLineNumbers > from))
+ display.updateLineNumbers = from;
+
+ cm.curOp.viewChanged = true;
+
+ if (from >= display.viewTo) { // Change after
+ if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+ resetView(cm);
+ } else if (to <= display.viewFrom) { // Change before
+ if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+ resetView(cm);
+ } else {
+ display.viewFrom += lendiff;
+ display.viewTo += lendiff;
+ }
+ } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+ resetView(cm);
+ } else if (from <= display.viewFrom) { // Top overlap
+ var cut = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cut) {
+ display.view = display.view.slice(cut.index);
+ display.viewFrom = cut.lineN;
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ } else if (to >= display.viewTo) { // Bottom overlap
+ var cut = viewCuttingPoint(cm, from, from, -1);
+ if (cut) {
+ display.view = display.view.slice(0, cut.index);
+ display.viewTo = cut.lineN;
+ } else {
+ resetView(cm);
+ }
+ } else { // Gap in the middle
+ var cutTop = viewCuttingPoint(cm, from, from, -1);
+ var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1);
+ if (cutTop && cutBot) {
+ display.view = display.view.slice(0, cutTop.index)
+ .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+ .concat(display.view.slice(cutBot.index));
+ display.viewTo += lendiff;
+ } else {
+ resetView(cm);
+ }
+ }
+
+ var ext = display.externalMeasured;
+ if (ext) {
+ if (to < ext.lineN)
+ ext.lineN += lendiff;
+ else if (from < ext.lineN + ext.size)
+ display.externalMeasured = null;
+ }
+ }
+
+ // Register a change to a single line. Type must be one of "text",
+ // "gutter", "class", "widget"
+ function regLineChange(cm, line, type) {
+ cm.curOp.viewChanged = true;
+ var display = cm.display, ext = cm.display.externalMeasured;
+ if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+ display.externalMeasured = null;
+
+ if (line < display.viewFrom || line >= display.viewTo) return;
+ var lineView = display.view[findViewIndex(cm, line)];
+ if (lineView.node == null) return;
+ var arr = lineView.changes || (lineView.changes = []);
+ if (indexOf(arr, type) == -1) arr.push(type);
+ }
+
+ // Clear the view.
+ function resetView(cm) {
+ cm.display.viewFrom = cm.display.viewTo = cm.doc.first;
+ cm.display.view = [];
+ cm.display.viewOffset = 0;
+ }
+
+ // Find the view element corresponding to a given line. Return null
+ // when the line isn't visible.
+ function findViewIndex(cm, n) {
+ if (n >= cm.display.viewTo) return null;
+ n -= cm.display.viewFrom;
+ if (n < 0) return null;
+ var view = cm.display.view;
+ for (var i = 0; i < view.length; i++) {
+ n -= view[i].size;
+ if (n < 0) return i;
+ }
+ }
+
+ function viewCuttingPoint(cm, oldN, newN, dir) {
+ var index = findViewIndex(cm, oldN), diff, view = cm.display.view;
+ if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+ return {index: index, lineN: newN};
+ for (var i = 0, n = cm.display.viewFrom; i < index; i++)
+ n += view[i].size;
+ if (n != oldN) {
+ if (dir > 0) {
+ if (index == view.length - 1) return null;
+ diff = (n + view[index].size) - oldN;
+ index++;
+ } else {
+ diff = n - oldN;
+ }
+ oldN += diff; newN += diff;
+ }
+ while (visualLineNo(cm.doc, newN) != newN) {
+ if (index == (dir < 0 ? 0 : view.length - 1)) return null;
+ newN += dir * view[index - (dir < 0 ? 1 : 0)].size;
+ index += dir;
+ }
+ return {index: index, lineN: newN};
+ }
+
+ // Force the view to cover a given range, adding empty view element
+ // or clipping off existing ones as needed.
+ function adjustView(cm, from, to) {
+ var display = cm.display, view = display.view;
+ if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+ display.view = buildViewArray(cm, from, to);
+ display.viewFrom = from;
+ } else {
+ if (display.viewFrom > from)
+ display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view);
+ else if (display.viewFrom < from)
+ display.view = display.view.slice(findViewIndex(cm, from));
+ display.viewFrom = from;
+ if (display.viewTo < to)
+ display.view = display.view.concat(buildViewArray(cm, display.viewTo, to));
+ else if (display.viewTo > to)
+ display.view = display.view.slice(0, findViewIndex(cm, to));
+ }
+ display.viewTo = to;
+ }
+
+ // Count the number of lines in the view whose DOM representation is
+ // out of date (or nonexistent).
+ function countDirtyView(cm) {
+ var view = cm.display.view, dirty = 0;
+ for (var i = 0; i < view.length; i++) {
+ var lineView = view[i];
+ if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty;
+ }
+ return dirty;
+ }
+
+ // EVENT HANDLERS
+
+ // Attach the necessary event handlers when initializing the editor
+ function registerEventHandlers(cm) {
+ var d = cm.display;
+ on(d.scroller, "mousedown", operation(cm, onMouseDown));
+ // Older IE's will not fire a second mousedown for a double click
+ if (ie && ie_version < 11)
+ on(d.scroller, "dblclick", operation(cm, function(e) {
+ if (signalDOMEvent(cm, e)) return;
+ var pos = posFromMouse(cm, e);
+ if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
+ e_preventDefault(e);
+ var word = cm.findWordAt(pos);
+ extendSelection(cm.doc, word.anchor, word.head);
+ }));
+ else
+ on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
+ // Some browsers fire contextmenu *after* opening the menu, at
+ // which point we can't mess with it anymore. Context menu is
+ // handled in onMouseDown for these browsers.
+ if (!captureRightClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
+
+ // Used to suppress mouse event handling when a touch happens
+ var touchFinished, prevTouch = {end: 0};
+ function finishTouch() {
+ if (d.activeTouch) {
+ touchFinished = setTimeout(function() {d.activeTouch = null;}, 1000);
+ prevTouch = d.activeTouch;
+ prevTouch.end = +new Date;
+ }
+ };
+ function isMouseLikeTouchEvent(e) {
+ if (e.touches.length != 1) return false;
+ var touch = e.touches[0];
+ return touch.radiusX <= 1 && touch.radiusY <= 1;
+ }
+ function farAway(touch, other) {
+ if (other.left == null) return true;
+ var dx = other.left - touch.left, dy = other.top - touch.top;
+ return dx * dx + dy * dy > 20 * 20;
+ }
+ on(d.scroller, "touchstart", function(e) {
+ if (!isMouseLikeTouchEvent(e)) {
+ clearTimeout(touchFinished);
+ var now = +new Date;
+ d.activeTouch = {start: now, moved: false,
+ prev: now - prevTouch.end <= 300 ? prevTouch : null};
+ if (e.touches.length == 1) {
+ d.activeTouch.left = e.touches[0].pageX;
+ d.activeTouch.top = e.touches[0].pageY;
+ }
+ }
+ });
+ on(d.scroller, "touchmove", function() {
+ if (d.activeTouch) d.activeTouch.moved = true;
+ });
+ on(d.scroller, "touchend", function(e) {
+ var touch = d.activeTouch;
+ if (touch && !eventInWidget(d, e) && touch.left != null &&
+ !touch.moved && new Date - touch.start < 300) {
+ var pos = cm.coordsChar(d.activeTouch, "page"), range;
+ if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+ range = new Range(pos, pos);
+ else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+ range = cm.findWordAt(pos);
+ else // Triple tap
+ range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)));
+ cm.setSelection(range.anchor, range.head);
+ cm.focus();
+ e_preventDefault(e);
+ }
+ finishTouch();
+ });
+ on(d.scroller, "touchcancel", finishTouch);
+
+ // Sync scrolling between fake scrollbars and real scrollable
+ // area, ensure viewport is updated when scrolling.
+ on(d.scroller, "scroll", function() {
+ if (d.scroller.clientHeight) {
+ setScrollTop(cm, d.scroller.scrollTop);
+ setScrollLeft(cm, d.scroller.scrollLeft, true);
+ signal(cm, "scroll", cm);
+ }
+ });
+
+ // Listen to wheel events in order to try and update the viewport on time.
+ on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
+ on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
+
+ // Prevent wrapper from ever scrolling
+ on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
+
+ d.dragFunctions = {
+ enter: function(e) {if (!signalDOMEvent(cm, e)) e_stop(e);},
+ over: function(e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }},
+ start: function(e){onDragStart(cm, e);},
+ drop: operation(cm, onDrop),
+ leave: function() {clearDragCursor(cm);}
+ };
+
+ var inp = d.input.getField();
+ on(inp, "keyup", function(e) { onKeyUp.call(cm, e); });
+ on(inp, "keydown", operation(cm, onKeyDown));
+ on(inp, "keypress", operation(cm, onKeyPress));
+ on(inp, "focus", bind(onFocus, cm));
+ on(inp, "blur", bind(onBlur, cm));
+ }
+
+ function dragDropChanged(cm, value, old) {
+ var wasOn = old && old != CodeMirror.Init;
+ if (!value != !wasOn) {
+ var funcs = cm.display.dragFunctions;
+ var toggle = value ? on : off;
+ toggle(cm.display.scroller, "dragstart", funcs.start);
+ toggle(cm.display.scroller, "dragenter", funcs.enter);
+ toggle(cm.display.scroller, "dragover", funcs.over);
+ toggle(cm.display.scroller, "dragleave", funcs.leave);
+ toggle(cm.display.scroller, "drop", funcs.drop);
+ }
+ }
+
+ // Called when the window resizes
+ function onResize(cm) {
+ var d = cm.display;
+ if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+ return;
+ // Might be a text scaling operation, clear size caches.
+ d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null;
+ d.scrollbarsClipped = false;
+ cm.setSize();
+ }
+
+ // MOUSE EVENTS
+
+ // Return true when the given mouse event happened in a widget
+ function eventInWidget(display, e) {
+ for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+ if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+ (n.parentNode == display.sizer && n != display.mover))
+ return true;
+ }
+ }
+
+ // Given a mouse event, find the corresponding position. If liberal
+ // is false, it checks whether a gutter or scrollbar was clicked,
+ // and returns null if it was. forRect is used by rectangular
+ // selections, and tries to estimate a character position even for
+ // coordinates beyond the right of the text.
+ function posFromMouse(cm, e, liberal, forRect) {
+ var display = cm.display;
+ if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null;
+
+ var x, y, space = display.lineSpace.getBoundingClientRect();
+ // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+ try { x = e.clientX - space.left; y = e.clientY - space.top; }
+ catch (e) { return null; }
+ var coords = coordsChar(cm, x, y), line;
+ if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+ var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length;
+ coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff));
+ }
+ return coords;
+ }
+
+ // A mouse down can be a single click, double click, triple click,
+ // start of selection drag, start of text drag, new cursor
+ // (ctrl-click), rectangle drag (alt-drag), or xwin
+ // middle-click-paste. Or it might be a click on something we should
+ // not interfere with, such as a scrollbar or widget.
+ function onMouseDown(e) {
+ var cm = this, display = cm.display;
+ if (display.activeTouch && display.input.supportsTouch() || signalDOMEvent(cm, e)) return;
+ display.shift = e.shiftKey;
+
+ if (eventInWidget(display, e)) {
+ if (!webkit) {
+ // Briefly turn off draggability, to allow widgets to do
+ // normal dragging things.
+ display.scroller.draggable = false;
+ setTimeout(function(){display.scroller.draggable = true;}, 100);
+ }
+ return;
+ }
+ if (clickInGutter(cm, e)) return;
+ var start = posFromMouse(cm, e);
+ window.focus();
+
+ switch (e_button(e)) {
+ case 1:
+ // #3261: make sure, that we're not starting a second selection
+ if (cm.state.selectingText)
+ cm.state.selectingText(e);
+ else if (start)
+ leftButtonDown(cm, e, start);
+ else if (e_target(e) == display.scroller)
+ e_preventDefault(e);
+ break;
+ case 2:
+ if (webkit) cm.state.lastMiddleDown = +new Date;
+ if (start) extendSelection(cm.doc, start);
+ setTimeout(function() {display.input.focus();}, 20);
+ e_preventDefault(e);
+ break;
+ case 3:
+ if (captureRightClick) onContextMenu(cm, e);
+ else delayBlurEvent(cm);
+ break;
+ }
+ }
+
+ var lastClick, lastDoubleClick;
+ function leftButtonDown(cm, e, start) {
+ if (ie) setTimeout(bind(ensureFocus, cm), 0);
+ else cm.curOp.focus = activeElt();
+
+ var now = +new Date, type;
+ if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
+ type = "triple";
+ } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
+ type = "double";
+ lastDoubleClick = {time: now, pos: start};
+ } else {
+ type = "single";
+ lastClick = {time: now, pos: start};
+ }
+
+ var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained;
+ if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) &&
+ type == "single" && (contained = sel.contains(start)) > -1 &&
+ (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
+ (cmp(contained.to(), start) > 0 || start.xRel < 0))
+ leftButtonStartDrag(cm, e, start, modifier);
+ else
+ leftButtonSelect(cm, e, start, type, modifier);
+ }
+
+ // Start a text drag. When it ends, see if any dragging actually
+ // happen, and treat as a click if it didn't.
+ function leftButtonStartDrag(cm, e, start, modifier) {
+ var display = cm.display, startTime = +new Date;
+ var dragEnd = operation(cm, function(e2) {
+ if (webkit) display.scroller.draggable = false;
+ cm.state.draggingText = false;
+ off(document, "mouseup", dragEnd);
+ off(display.scroller, "drop", dragEnd);
+ if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+ e_preventDefault(e2);
+ if (!modifier && +new Date - 200 < startTime)
+ extendSelection(cm.doc, start);
+ // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+ if (webkit || ie && ie_version == 9)
+ setTimeout(function() {document.body.focus(); display.input.focus();}, 20);
+ else
+ display.input.focus();
+ }
+ });
+ // Let the drag handler handle this.
+ if (webkit) display.scroller.draggable = true;
+ cm.state.draggingText = dragEnd;
+ // IE's approach to draggable
+ if (display.scroller.dragDrop) display.scroller.dragDrop();
+ on(document, "mouseup", dragEnd);
+ on(display.scroller, "drop", dragEnd);
+ }
+
+ // Normal selection, as opposed to text dragging.
+ function leftButtonSelect(cm, e, start, type, addNew) {
+ var display = cm.display, doc = cm.doc;
+ e_preventDefault(e);
+
+ var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges;
+ if (addNew && !e.shiftKey) {
+ ourIndex = doc.sel.contains(start);
+ if (ourIndex > -1)
+ ourRange = ranges[ourIndex];
+ else
+ ourRange = new Range(start, start);
+ } else {
+ ourRange = doc.sel.primary();
+ ourIndex = doc.sel.primIndex;
+ }
+
+ if (e.altKey) {
+ type = "rect";
+ if (!addNew) ourRange = new Range(start, start);
+ start = posFromMouse(cm, e, true, true);
+ ourIndex = -1;
+ } else if (type == "double") {
+ var word = cm.findWordAt(start);
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, word.anchor, word.head);
+ else
+ ourRange = word;
+ } else if (type == "triple") {
+ var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)));
+ if (cm.display.shift || doc.extend)
+ ourRange = extendRange(doc, ourRange, line.anchor, line.head);
+ else
+ ourRange = line;
+ } else {
+ ourRange = extendRange(doc, ourRange, start);
+ }
+
+ if (!addNew) {
+ ourIndex = 0;
+ setSelection(doc, new Selection([ourRange], 0), sel_mouse);
+ startSel = doc.sel;
+ } else if (ourIndex == -1) {
+ ourIndex = ranges.length;
+ setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+ {scroll: false, origin: "*mouse"});
+ } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
+ setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+ {scroll: false, origin: "*mouse"});
+ startSel = doc.sel;
+ } else {
+ replaceOneSelection(doc, ourIndex, ourRange, sel_mouse);
+ }
+
+ var lastPos = start;
+ function extendTo(pos) {
+ if (cmp(lastPos, pos) == 0) return;
+ lastPos = pos;
+
+ if (type == "rect") {
+ var ranges = [], tabSize = cm.options.tabSize;
+ var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize);
+ var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize);
+ var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol);
+ for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+ line <= end; line++) {
+ var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize);
+ if (left == right)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)));
+ else if (text.length > leftPos)
+ ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))));
+ }
+ if (!ranges.length) ranges.push(new Range(start, start));
+ setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+ {origin: "*mouse", scroll: false});
+ cm.scrollIntoView(pos);
+ } else {
+ var oldRange = ourRange;
+ var anchor = oldRange.anchor, head = pos;
+ if (type != "single") {
+ if (type == "double")
+ var range = cm.findWordAt(pos);
+ else
+ var range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)));
+ if (cmp(range.anchor, anchor) > 0) {
+ head = range.head;
+ anchor = minPos(oldRange.from(), range.anchor);
+ } else {
+ head = range.anchor;
+ anchor = maxPos(oldRange.to(), range.head);
+ }
+ }
+ var ranges = startSel.ranges.slice(0);
+ ranges[ourIndex] = new Range(clipPos(doc, anchor), head);
+ setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse);
+ }
+ }
+
+ var editorSize = display.wrapper.getBoundingClientRect();
+ // Used to ensure timeout re-tries don't fire when another extend
+ // happened in the meantime (clearTimeout isn't reliable -- at
+ // least on Chrome, the timeouts still happen even when cleared,
+ // if the clear happens after their scheduled firing time).
+ var counter = 0;
+
+ function extend(e) {
+ var curCount = ++counter;
+ var cur = posFromMouse(cm, e, true, type == "rect");
+ if (!cur) return;
+ if (cmp(cur, lastPos) != 0) {
+ cm.curOp.focus = activeElt();
+ extendTo(cur);
+ var visible = visibleLines(display, doc);
+ if (cur.line >= visible.to || cur.line < visible.from)
+ setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
+ } else {
+ var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
+ if (outside) setTimeout(operation(cm, function() {
+ if (counter != curCount) return;
+ display.scroller.scrollTop += outside;
+ extend(e);
+ }), 50);
+ }
+ }
+
+ function done(e) {
+ cm.state.selectingText = false;
+ counter = Infinity;
+ e_preventDefault(e);
+ display.input.focus();
+ off(document, "mousemove", move);
+ off(document, "mouseup", up);
+ doc.history.lastSelOrigin = null;
+ }
+
+ var move = operation(cm, function(e) {
+ if (!e_button(e)) done(e);
+ else extend(e);
+ });
+ var up = operation(cm, done);
+ cm.state.selectingText = up;
+ on(document, "mousemove", move);
+ on(document, "mouseup", up);
+ }
+
+ // Determines whether an event happened in the gutter, and fires the
+ // handlers for the corresponding event.
+ function gutterEvent(cm, e, type, prevent, signalfn) {
+ try { var mX = e.clientX, mY = e.clientY; }
+ catch(e) { return false; }
+ if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false;
+ if (prevent) e_preventDefault(e);
+
+ var display = cm.display;
+ var lineBox = display.lineDiv.getBoundingClientRect();
+
+ if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e);
+ mY -= lineBox.top - display.viewOffset;
+
+ for (var i = 0; i < cm.options.gutters.length; ++i) {
+ var g = display.gutters.childNodes[i];
+ if (g && g.getBoundingClientRect().right >= mX) {
+ var line = lineAtHeight(cm.doc, mY);
+ var gutter = cm.options.gutters[i];
+ signalfn(cm, type, cm, line, gutter, e);
+ return e_defaultPrevented(e);
+ }
+ }
+ }
+
+ function clickInGutter(cm, e) {
+ return gutterEvent(cm, e, "gutterClick", true, signalLater);
+ }
+
+ // Kludge to work around strange IE behavior where it'll sometimes
+ // re-fire a series of drag-related events right after the drop (#1551)
+ var lastDrop = 0;
+
+ function onDrop(e) {
+ var cm = this;
+ clearDragCursor(cm);
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+ return;
+ e_preventDefault(e);
+ if (ie) lastDrop = +new Date;
+ var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
+ if (!pos || isReadOnly(cm)) return;
+ // Might be a file drop, in which case we simply extract the text
+ // and insert it.
+ if (files && files.length && window.FileReader && window.File) {
+ var n = files.length, text = Array(n), read = 0;
+ var loadFile = function(file, i) {
+ if (cm.options.allowDropFileTypes &&
+ indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+ return;
+
+ var reader = new FileReader;
+ reader.onload = operation(cm, function() {
+ var content = reader.result;
+ if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = "";
+ text[i] = content;
+ if (++read == n) {
+ pos = clipPos(cm.doc, pos);
+ var change = {from: pos, to: pos,
+ text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+ origin: "paste"};
+ makeChange(cm.doc, change);
+ setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)));
+ }
+ });
+ reader.readAsText(file);
+ };
+ for (var i = 0; i < n; ++i) loadFile(files[i], i);
+ } else { // Normal drop
+ // Don't do a replace if the drop happened inside of the selected text.
+ if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+ cm.state.draggingText(e);
+ // Ensure the editor is re-focused
+ setTimeout(function() {cm.display.input.focus();}, 20);
+ return;
+ }
+ try {
+ var text = e.dataTransfer.getData("Text");
+ if (text) {
+ if (cm.state.draggingText && !(mac ? e.altKey : e.ctrlKey))
+ var selected = cm.listSelections();
+ setSelectionNoUndo(cm.doc, simpleSelection(pos, pos));
+ if (selected) for (var i = 0; i < selected.length; ++i)
+ replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag");
+ cm.replaceSelection(text, "around", "paste");
+ cm.display.input.focus();
+ }
+ }
+ catch(e){}
+ }
+ }
+
+ function onDragStart(cm, e) {
+ if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
+ if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
+
+ e.dataTransfer.setData("Text", cm.getSelection());
+
+ // Use dummy image instead of default browsers image.
+ // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+ if (e.dataTransfer.setDragImage && !safari) {
+ var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
+ img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==";
+ if (presto) {
+ img.width = img.height = 1;
+ cm.display.wrapper.appendChild(img);
+ // Force a relayout, or Opera won't use our image for some obscure reason
+ img._top = img.offsetTop;
+ }
+ e.dataTransfer.setDragImage(img, 0, 0);
+ if (presto) img.parentNode.removeChild(img);
+ }
+ }
+
+ function onDragOver(cm, e) {
+ var pos = posFromMouse(cm, e);
+ if (!pos) return;
+ var frag = document.createDocumentFragment();
+ drawSelectionCursor(cm, pos, frag);
+ if (!cm.display.dragCursor) {
+ cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors");
+ cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv);
+ }
+ removeChildrenAndAdd(cm.display.dragCursor, frag);
+ }
+
+ function clearDragCursor(cm) {
+ if (cm.display.dragCursor) {
+ cm.display.lineSpace.removeChild(cm.display.dragCursor);
+ cm.display.dragCursor = null;
+ }
+ }
+
+ // SCROLL EVENTS
+
+ // Sync the scrollable area and scrollbars, ensure the viewport
+ // covers the visible area.
+ function setScrollTop(cm, val) {
+ if (Math.abs(cm.doc.scrollTop - val) < 2) return;
+ cm.doc.scrollTop = val;
+ if (!gecko) updateDisplaySimple(cm, {top: val});
+ if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
+ cm.display.scrollbars.setScrollTop(val);
+ if (gecko) updateDisplaySimple(cm);
+ startWorker(cm, 100);
+ }
+ // Sync scroller and scrollbar, ensure the gutter elements are
+ // aligned.
+ function setScrollLeft(cm, val, isScroller) {
+ if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
+ val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
+ cm.doc.scrollLeft = val;
+ alignHorizontally(cm);
+ if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
+ cm.display.scrollbars.setScrollLeft(val);
+ }
+
+ // Since the delta values reported on mouse wheel events are
+ // unstandardized between browsers and even browser versions, and
+ // generally horribly unpredictable, this code starts by measuring
+ // the scroll effect that the first few mouse wheel events have,
+ // and, from that, detects the way it can convert deltas to pixel
+ // offsets afterwards.
+ //
+ // The reason we want to know the amount a wheel event will scroll
+ // is that it gives us a chance to update the display before the
+ // actual scrolling happens, reducing flickering.
+
+ var wheelSamples = 0, wheelPixelsPerUnit = null;
+ // Fill in a browser-detected starting value on browsers where we
+ // know one. These don't have to be accurate -- the result of them
+ // being wrong would just be a slight flicker on the first wheel
+ // scroll (if it is large enough).
+ if (ie) wheelPixelsPerUnit = -.53;
+ else if (gecko) wheelPixelsPerUnit = 15;
+ else if (chrome) wheelPixelsPerUnit = -.7;
+ else if (safari) wheelPixelsPerUnit = -1/3;
+
+ var wheelEventDelta = function(e) {
+ var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
+ if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
+ if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
+ else if (dy == null) dy = e.wheelDelta;
+ return {x: dx, y: dy};
+ };
+ CodeMirror.wheelEventPixels = function(e) {
+ var delta = wheelEventDelta(e);
+ delta.x *= wheelPixelsPerUnit;
+ delta.y *= wheelPixelsPerUnit;
+ return delta;
+ };
+
+ function onScrollWheel(cm, e) {
+ var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y;
+
+ var display = cm.display, scroll = display.scroller;
+ // Quit if there's nothing to scroll here
+ var canScrollX = scroll.scrollWidth > scroll.clientWidth;
+ var canScrollY = scroll.scrollHeight > scroll.clientHeight;
+ if (!(dx && canScrollX || dy && canScrollY)) return;
+
+ // Webkit browsers on OS X abort momentum scrolls when the target
+ // of the scroll event is removed from the scrollable element.
+ // This hack (see related code in patchDisplay) makes sure the
+ // element is kept around.
+ if (dy && mac && webkit) {
+ outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+ for (var i = 0; i < view.length; i++) {
+ if (view[i].node == cur) {
+ cm.display.currentWheelTarget = cur;
+ break outer;
+ }
+ }
+ }
+ }
+
+ // On some browsers, horizontal scrolling will cause redraws to
+ // happen before the gutter has been realigned, causing it to
+ // wriggle around in a most unseemly way. When we have an
+ // estimated pixels/delta value, we just handle horizontal
+ // scrolling entirely here. It'll be slightly off from native, but
+ // better than glitching out.
+ if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+ if (dy && canScrollY)
+ setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
+ setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
+ // Only prevent default scrolling if vertical scrolling is
+ // actually possible. Otherwise, it causes vertical scroll
+ // jitter on OSX trackpads when deltaX is small and deltaY
+ // is large (issue #3579)
+ if (!dy || (dy && canScrollY))
+ e_preventDefault(e);
+ display.wheelStartX = null; // Abort measurement, if in progress
+ return;
+ }
+
+ // 'Project' the visible viewport to cover the area that is being
+ // scrolled into view (if we know enough to estimate it).
+ if (dy && wheelPixelsPerUnit != null) {
+ var pixels = dy * wheelPixelsPerUnit;
+ var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
+ if (pixels < 0) top = Math.max(0, top + pixels - 50);
+ else bot = Math.min(cm.doc.height, bot + pixels + 50);
+ updateDisplaySimple(cm, {top: top, bottom: bot});
+ }
+
+ if (wheelSamples < 20) {
+ if (display.wheelStartX == null) {
+ display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
+ display.wheelDX = dx; display.wheelDY = dy;
+ setTimeout(function() {
+ if (display.wheelStartX == null) return;
+ var movedX = scroll.scrollLeft - display.wheelStartX;
+ var movedY = scroll.scrollTop - display.wheelStartY;
+ var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+ (movedX && display.wheelDX && movedX / display.wheelDX);
+ display.wheelStartX = display.wheelStartY = null;
+ if (!sample) return;
+ wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
+ ++wheelSamples;
+ }, 200);
+ } else {
+ display.wheelDX += dx; display.wheelDY += dy;
+ }
+ }
+ }
+
+ // KEY EVENTS
+
+ // Run a handler that was bound to a key.
+ function doHandleBinding(cm, bound, dropShift) {
+ if (typeof bound == "string") {
+ bound = commands[bound];
+ if (!bound) return false;
+ }
+ // Ensure previous input has been read, so that the handler sees a
+ // consistent view of the document
+ cm.display.input.ensurePolled();
+ var prevShift = cm.display.shift, done = false;
+ try {
+ if (isReadOnly(cm)) cm.state.suppressEdits = true;
+ if (dropShift) cm.display.shift = false;
+ done = bound(cm) != Pass;
+ } finally {
+ cm.display.shift = prevShift;
+ cm.state.suppressEdits = false;
+ }
+ return done;
+ }
+
+ function lookupKeyForEditor(cm, name, handle) {
+ for (var i = 0; i < cm.state.keyMaps.length; i++) {
+ var result = lookupKey(name, cm.state.keyMaps[i], handle, cm);
+ if (result) return result;
+ }
+ return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+ || lookupKey(name, cm.options.keyMap, handle, cm);
+ }
+
+ var stopSeq = new Delayed;
+ function dispatchKey(cm, name, e, handle) {
+ var seq = cm.state.keySeq;
+ if (seq) {
+ if (isModifierKey(name)) return "handled";
+ stopSeq.set(50, function() {
+ if (cm.state.keySeq == seq) {
+ cm.state.keySeq = null;
+ cm.display.input.reset();
+ }
+ });
+ name = seq + " " + name;
+ }
+ var result = lookupKeyForEditor(cm, name, handle);
+
+ if (result == "multi")
+ cm.state.keySeq = name;
+ if (result == "handled")
+ signalLater(cm, "keyHandled", cm, name, e);
+
+ if (result == "handled" || result == "multi") {
+ e_preventDefault(e);
+ restartBlink(cm);
+ }
+
+ if (seq && !result && /\'$/.test(name)) {
+ e_preventDefault(e);
+ return true;
+ }
+ return !!result;
+ }
+
+ // Handle a key from the keydown event.
+ function handleKeyBinding(cm, e) {
+ var name = keyName(e, true);
+ if (!name) return false;
+
+ if (e.shiftKey && !cm.state.keySeq) {
+ // First try to resolve full name (including 'Shift-'). Failing
+ // that, see if there is a cursor-motion command (starting with
+ // 'go') bound to the keyname without 'Shift-'.
+ return dispatchKey(cm, "Shift-" + name, e, function(b) {return doHandleBinding(cm, b, true);})
+ || dispatchKey(cm, name, e, function(b) {
+ if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+ return doHandleBinding(cm, b);
+ });
+ } else {
+ return dispatchKey(cm, name, e, function(b) { return doHandleBinding(cm, b); });
+ }
+ }
+
+ // Handle a key from the keypress event
+ function handleCharBinding(cm, e, ch) {
+ return dispatchKey(cm, "'" + ch + "'", e,
+ function(b) { return doHandleBinding(cm, b, true); });
+ }
+
+ var lastStoppedKey = null;
+ function onKeyDown(e) {
+ var cm = this;
+ cm.curOp.focus = activeElt();
+ if (signalDOMEvent(cm, e)) return;
+ // IE does strange things with escape.
+ if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false;
+ var code = e.keyCode;
+ cm.display.shift = code == 16 || e.shiftKey;
+ var handled = handleKeyBinding(cm, e);
+ if (presto) {
+ lastStoppedKey = handled ? code : null;
+ // Opera has no cut event... we try to at least catch the key combo
+ if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+ cm.replaceSelection("", null, "cut");
+ }
+
+ // Turn mouse into crosshair when Alt is held on Mac.
+ if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+ showCrossHair(cm);
+ }
+
+ function showCrossHair(cm) {
+ var lineDiv = cm.display.lineDiv;
+ addClass(lineDiv, "CodeMirror-crosshair");
+
+ function up(e) {
+ if (e.keyCode == 18 || !e.altKey) {
+ rmClass(lineDiv, "CodeMirror-crosshair");
+ off(document, "keyup", up);
+ off(document, "mouseover", up);
+ }
+ }
+ on(document, "keyup", up);
+ on(document, "mouseover", up);
+ }
+
+ function onKeyUp(e) {
+ if (e.keyCode == 16) this.doc.sel.shift = false;
+ signalDOMEvent(this, e);
+ }
+
+ function onKeyPress(e) {
+ var cm = this;
+ if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return;
+ var keyCode = e.keyCode, charCode = e.charCode;
+ if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
+ if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return;
+ var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
+ if (handleCharBinding(cm, e, ch)) return;
+ cm.display.input.onKeyPress(e);
+ }
+
+ // FOCUS/BLUR EVENTS
+
+ function delayBlurEvent(cm) {
+ cm.state.delayingBlurEvent = true;
+ setTimeout(function() {
+ if (cm.state.delayingBlurEvent) {
+ cm.state.delayingBlurEvent = false;
+ onBlur(cm);
+ }
+ }, 100);
+ }
+
+ function onFocus(cm) {
+ if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false;
+
+ if (cm.options.readOnly == "nocursor") return;
+ if (!cm.state.focused) {
+ signal(cm, "focus", cm);
+ cm.state.focused = true;
+ addClass(cm.display.wrapper, "CodeMirror-focused");
+ // This test prevents this from firing when a context
+ // menu is closed (since the input reset would kill the
+ // select-all detection hack)
+ if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+ cm.display.input.reset();
+ if (webkit) setTimeout(function() { cm.display.input.reset(true); }, 20); // Issue #1730
+ }
+ cm.display.input.receivedFocus();
+ }
+ restartBlink(cm);
+ }
+ function onBlur(cm) {
+ if (cm.state.delayingBlurEvent) return;
+
+ if (cm.state.focused) {
+ signal(cm, "blur", cm);
+ cm.state.focused = false;
+ rmClass(cm.display.wrapper, "CodeMirror-focused");
+ }
+ clearInterval(cm.display.blinker);
+ setTimeout(function() {if (!cm.state.focused) cm.display.shift = false;}, 150);
+ }
+
+ // CONTEXT MENU HANDLING
+
+ // To make the context menu work, we need to briefly unhide the
+ // textarea (making it as unobtrusive as possible) to let the
+ // right-click take effect on it.
+ function onContextMenu(cm, e) {
+ if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return;
+ if (signalDOMEvent(cm, e, "contextmenu")) return;
+ cm.display.input.onContextMenu(e);
+ }
+
+ function contextMenuInGutter(cm, e) {
+ if (!hasHandler(cm, "gutterContextMenu")) return false;
+ return gutterEvent(cm, e, "gutterContextMenu", false, signal);
+ }
+
+ // UPDATING
+
+ // Compute the position of the end of a change (its 'to' property
+ // refers to the pre-change end).
+ var changeEnd = CodeMirror.changeEnd = function(change) {
+ if (!change.text) return change.to;
+ return Pos(change.from.line + change.text.length - 1,
+ lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
+ };
+
+ // Adjust a position to refer to the post-change position of the
+ // same text, or the end of the change if the change covers it.
+ function adjustForChange(pos, change) {
+ if (cmp(pos, change.from) < 0) return pos;
+ if (cmp(pos, change.to) <= 0) return changeEnd(change);
+
+ var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
+ if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch;
+ return Pos(line, ch);
+ }
+
+ function computeSelAfterChange(doc, change) {
+ var out = [];
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ out.push(new Range(adjustForChange(range.anchor, change),
+ adjustForChange(range.head, change)));
+ }
+ return normalizeSelection(out, doc.sel.primIndex);
+ }
+
+ function offsetPos(pos, old, nw) {
+ if (pos.line == old.line)
+ return Pos(nw.line, pos.ch - old.ch + nw.ch);
+ else
+ return Pos(nw.line + (pos.line - old.line), pos.ch);
+ }
+
+ // Used by replaceSelections to allow moving the selection to the
+ // start or around the replaced test. Hint may be "start" or "around".
+ function computeReplacedSel(doc, changes, hint) {
+ var out = [];
+ var oldPrev = Pos(doc.first, 0), newPrev = oldPrev;
+ for (var i = 0; i < changes.length; i++) {
+ var change = changes[i];
+ var from = offsetPos(change.from, oldPrev, newPrev);
+ var to = offsetPos(changeEnd(change), oldPrev, newPrev);
+ oldPrev = change.to;
+ newPrev = to;
+ if (hint == "around") {
+ var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0;
+ out[i] = new Range(inv ? to : from, inv ? from : to);
+ } else {
+ out[i] = new Range(from, from);
+ }
+ }
+ return new Selection(out, doc.sel.primIndex);
+ }
+
+ // Allow "beforeChange" event handlers to influence a change
+ function filterChange(doc, change, update) {
+ var obj = {
+ canceled: false,
+ from: change.from,
+ to: change.to,
+ text: change.text,
+ origin: change.origin,
+ cancel: function() { this.canceled = true; }
+ };
+ if (update) obj.update = function(from, to, text, origin) {
+ if (from) this.from = clipPos(doc, from);
+ if (to) this.to = clipPos(doc, to);
+ if (text) this.text = text;
+ if (origin !== undefined) this.origin = origin;
+ };
+ signal(doc, "beforeChange", doc, obj);
+ if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
+
+ if (obj.canceled) return null;
+ return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
+ }
+
+ // Apply a change to a document, and add it to the document's
+ // history, and propagating it to all linked documents.
+ function makeChange(doc, change, ignoreReadOnly) {
+ if (doc.cm) {
+ if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly);
+ if (doc.cm.state.suppressEdits) return;
+ }
+
+ if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+ change = filterChange(doc, change, true);
+ if (!change) return;
+ }
+
+ // Possibly split or suppress the update based on the presence
+ // of read-only spans in its range.
+ var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
+ if (split) {
+ for (var i = split.length - 1; i >= 0; --i)
+ makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text});
+ } else {
+ makeChangeInner(doc, change);
+ }
+ }
+
+ function makeChangeInner(doc, change) {
+ if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return;
+ var selAfter = computeSelAfterChange(doc, change);
+ addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
+
+ makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
+ var rebased = [];
+
+ linkedDocs(doc, function(doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
+ });
+ }
+
+ // Revert a change stored in a document's history.
+ function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+ if (doc.cm && doc.cm.state.suppressEdits) return;
+
+ var hist = doc.history, event, selAfter = doc.sel;
+ var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done;
+
+ // Verify that there is a useable event (so that ctrl-z won't
+ // needlessly clear selection events)
+ for (var i = 0; i < source.length; i++) {
+ event = source[i];
+ if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+ break;
+ }
+ if (i == source.length) return;
+ hist.lastOrigin = hist.lastSelOrigin = null;
+
+ for (;;) {
+ event = source.pop();
+ if (event.ranges) {
+ pushSelectionToHistory(event, dest);
+ if (allowSelectionOnly && !event.equals(doc.sel)) {
+ setSelection(doc, event, {clearRedo: false});
+ return;
+ }
+ selAfter = event;
+ }
+ else break;
+ }
+
+ // Build up a reverse change object to add to the opposite history
+ // stack (redo when undoing, and vice versa).
+ var antiChanges = [];
+ pushSelectionToHistory(selAfter, dest);
+ dest.push({changes: antiChanges, generation: hist.generation});
+ hist.generation = event.generation || ++hist.maxGeneration;
+
+ var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
+
+ for (var i = event.changes.length - 1; i >= 0; --i) {
+ var change = event.changes[i];
+ change.origin = type;
+ if (filter && !filterChange(doc, change, false)) {
+ source.length = 0;
+ return;
+ }
+
+ antiChanges.push(historyChangeFromChange(doc, change));
+
+ var after = i ? computeSelAfterChange(doc, change) : lst(source);
+ makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
+ if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)});
+ var rebased = [];
+
+ // Propagate to the linked documents
+ linkedDocs(doc, function(doc, sharedHist) {
+ if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+ rebaseHist(doc.history, change);
+ rebased.push(doc.history);
+ }
+ makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
+ });
+ }
+ }
+
+ // Sub-views need their line numbers shifted when text is added
+ // above or below them in the parent document.
+ function shiftDoc(doc, distance) {
+ if (distance == 0) return;
+ doc.first += distance;
+ doc.sel = new Selection(map(doc.sel.ranges, function(range) {
+ return new Range(Pos(range.anchor.line + distance, range.anchor.ch),
+ Pos(range.head.line + distance, range.head.ch));
+ }), doc.sel.primIndex);
+ if (doc.cm) {
+ regChange(doc.cm, doc.first, doc.first - distance, distance);
+ for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+ regLineChange(doc.cm, l, "gutter");
+ }
+ }
+
+ // More lower-level change function, handling only a single document
+ // (not linked ones).
+ function makeChangeSingleDoc(doc, change, selAfter, spans) {
+ if (doc.cm && !doc.cm.curOp)
+ return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
+
+ if (change.to.line < doc.first) {
+ shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
+ return;
+ }
+ if (change.from.line > doc.lastLine()) return;
+
+ // Clip the change to the size of this doc
+ if (change.from.line < doc.first) {
+ var shift = change.text.length - 1 - (doc.first - change.from.line);
+ shiftDoc(doc, shift);
+ change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+ text: [lst(change.text)], origin: change.origin};
+ }
+ var last = doc.lastLine();
+ if (change.to.line > last) {
+ change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+ text: [change.text[0]], origin: change.origin};
+ }
+
+ change.removed = getBetween(doc, change.from, change.to);
+
+ if (!selAfter) selAfter = computeSelAfterChange(doc, change);
+ if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans);
+ else updateDoc(doc, change, spans);
+ setSelectionNoUndo(doc, selAfter, sel_dontScroll);
+ }
+
+ // Handle the interaction of a change to a document with the editor
+ // that this document is part of.
+ function makeChangeSingleDocInEditor(cm, change, spans) {
+ var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
+
+ var recomputeMaxLength = false, checkWidthStart = from.line;
+ if (!cm.options.lineWrapping) {
+ checkWidthStart = lineNo(visualLine(getLine(doc, from.line)));
+ doc.iter(checkWidthStart, to.line + 1, function(line) {
+ if (line == display.maxLine) {
+ recomputeMaxLength = true;
+ return true;
+ }
+ });
+ }
+
+ if (doc.sel.contains(change.from, change.to) > -1)
+ signalCursorActivity(cm);
+
+ updateDoc(doc, change, spans, estimateHeight(cm));
+
+ if (!cm.options.lineWrapping) {
+ doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
+ var len = lineLength(line);
+ if (len > display.maxLineLength) {
+ display.maxLine = line;
+ display.maxLineLength = len;
+ display.maxLineChanged = true;
+ recomputeMaxLength = false;
+ }
+ });
+ if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
+ }
+
+ // Adjust frontier, schedule worker
+ doc.frontier = Math.min(doc.frontier, from.line);
+ startWorker(cm, 400);
+
+ var lendiff = change.text.length - (to.line - from.line) - 1;
+ // Remember that these lines changed, for updating the display
+ if (change.full)
+ regChange(cm);
+ else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+ regLineChange(cm, from.line, "text");
+ else
+ regChange(cm, from.line, to.line + 1, lendiff);
+
+ var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change");
+ if (changeHandler || changesHandler) {
+ var obj = {
+ from: from, to: to,
+ text: change.text,
+ removed: change.removed,
+ origin: change.origin
+ };
+ if (changeHandler) signalLater(cm, "change", cm, obj);
+ if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj);
+ }
+ cm.display.selForContextMenu = null;
+ }
+
+ function replaceRange(doc, code, from, to, origin) {
+ if (!to) to = from;
+ if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp; }
+ if (typeof code == "string") code = doc.splitLines(code);
+ makeChange(doc, {from: from, to: to, text: code, origin: origin});
+ }
+
+ // SCROLLING THINGS INTO VIEW
+
+ // If an editor sits on the top or bottom of the window, partially
+ // scrolled out of view, this ensures that the cursor is visible.
+ function maybeScrollWindow(cm, coords) {
+ if (signalDOMEvent(cm, "scrollCursorIntoView")) return;
+
+ var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null;
+ if (coords.top + box.top < 0) doScroll = true;
+ else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
+ if (doScroll != null && !phantom) {
+ var scrollNode = elt("div", "\u200b", null, "position: absolute; top: " +
+ (coords.top - display.viewOffset - paddingTop(cm.display)) + "px; height: " +
+ (coords.bottom - coords.top + scrollGap(cm) + display.barHeight) + "px; left: " +
+ coords.left + "px; width: 2px;");
+ cm.display.lineSpace.appendChild(scrollNode);
+ scrollNode.scrollIntoView(doScroll);
+ cm.display.lineSpace.removeChild(scrollNode);
+ }
+ }
+
+ // Scroll a given position into view (immediately), verifying that
+ // it actually became visible (as line heights are accurately
+ // measured, the position of something may 'drift' during drawing).
+ function scrollPosIntoView(cm, pos, end, margin) {
+ if (margin == null) margin = 0;
+ for (var limit = 0; limit < 5; limit++) {
+ var changed = false, coords = cursorCoords(cm, pos);
+ var endCoords = !end || end == pos ? coords : cursorCoords(cm, end);
+ var scrollPos = calculateScrollPos(cm, Math.min(coords.left, endCoords.left),
+ Math.min(coords.top, endCoords.top) - margin,
+ Math.max(coords.left, endCoords.left),
+ Math.max(coords.bottom, endCoords.bottom) + margin);
+ var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
+ if (scrollPos.scrollTop != null) {
+ setScrollTop(cm, scrollPos.scrollTop);
+ if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
+ }
+ if (scrollPos.scrollLeft != null) {
+ setScrollLeft(cm, scrollPos.scrollLeft);
+ if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
+ }
+ if (!changed) break;
+ }
+ return coords;
+ }
+
+ // Scroll a given set of coordinates into view (immediately).
+ function scrollIntoView(cm, x1, y1, x2, y2) {
+ var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
+ if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
+ if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
+ }
+
+ // Calculate a new scroll position needed to scroll the given
+ // rectangle into view. Returns an object with scrollTop and
+ // scrollLeft properties. When these are undefined, the
+ // vertical/horizontal position does not need to be adjusted.
+ function calculateScrollPos(cm, x1, y1, x2, y2) {
+ var display = cm.display, snapMargin = textHeight(cm.display);
+ if (y1 < 0) y1 = 0;
+ var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop;
+ var screen = displayHeight(cm), result = {};
+ if (y2 - y1 > screen) y2 = y1 + screen;
+ var docBottom = cm.doc.height + paddingVert(display);
+ var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
+ if (y1 < screentop) {
+ result.scrollTop = atTop ? 0 : y1;
+ } else if (y2 > screentop + screen) {
+ var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
+ if (newTop != screentop) result.scrollTop = newTop;
+ }
+
+ var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft;
+ var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0);
+ var tooWide = x2 - x1 > screenw;
+ if (tooWide) x2 = x1 + screenw;
+ if (x1 < 10)
+ result.scrollLeft = 0;
+ else if (x1 < screenleft)
+ result.scrollLeft = Math.max(0, x1 - (tooWide ? 0 : 10));
+ else if (x2 > screenw + screenleft - 3)
+ result.scrollLeft = x2 + (tooWide ? 0 : 10) - screenw;
+ return result;
+ }
+
+ // Store a relative adjustment to the scroll position in the current
+ // operation (to be applied when the operation finishes).
+ function addToScrollPos(cm, left, top) {
+ if (left != null || top != null) resolveScrollToPos(cm);
+ if (left != null)
+ cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left;
+ if (top != null)
+ cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top;
+ }
+
+ // Make sure that at the end of the operation the current cursor is
+ // shown.
+ function ensureCursorVisible(cm) {
+ resolveScrollToPos(cm);
+ var cur = cm.getCursor(), from = cur, to = cur;
+ if (!cm.options.lineWrapping) {
+ from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur;
+ to = Pos(cur.line, cur.ch + 1);
+ }
+ cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin, isCursor: true};
+ }
+
+ // When an operation has its scrollToPos property set, and another
+ // scroll action is applied before the end of the operation, this
+ // 'simulates' scrolling that position into view in a cheap way, so
+ // that the effect of intermediate scroll commands is not ignored.
+ function resolveScrollToPos(cm) {
+ var range = cm.curOp.scrollToPos;
+ if (range) {
+ cm.curOp.scrollToPos = null;
+ var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to);
+ var sPos = calculateScrollPos(cm, Math.min(from.left, to.left),
+ Math.min(from.top, to.top) - range.margin,
+ Math.max(from.right, to.right),
+ Math.max(from.bottom, to.bottom) + range.margin);
+ cm.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }
+
+ // API UTILITIES
+
+ // Indent the given line. The how parameter can be "smart",
+ // "add"/null, "subtract", or "prev". When aggressive is false
+ // (typically set to true for forced single-line indents), empty
+ // lines are not indented, and places where the mode returns Pass
+ // are left alone.
+ function indentLine(cm, n, how, aggressive) {
+ var doc = cm.doc, state;
+ if (how == null) how = "add";
+ if (how == "smart") {
+ // Fall back to "prev" when the mode doesn't have an indentation
+ // method.
+ if (!doc.mode.indent) how = "prev";
+ else state = getStateBefore(cm, n);
+ }
+
+ var tabSize = cm.options.tabSize;
+ var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
+ if (line.stateAfter) line.stateAfter = null;
+ var curSpaceString = line.text.match(/^\s*/)[0], indentation;
+ if (!aggressive && !/\S/.test(line.text)) {
+ indentation = 0;
+ how = "not";
+ } else if (how == "smart") {
+ indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
+ if (indentation == Pass || indentation > 150) {
+ if (!aggressive) return;
+ how = "prev";
+ }
+ }
+ if (how == "prev") {
+ if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
+ else indentation = 0;
+ } else if (how == "add") {
+ indentation = curSpace + cm.options.indentUnit;
+ } else if (how == "subtract") {
+ indentation = curSpace - cm.options.indentUnit;
+ } else if (typeof how == "number") {
+ indentation = curSpace + how;
+ }
+ indentation = Math.max(0, indentation);
+
+ var indentString = "", pos = 0;
+ if (cm.options.indentWithTabs)
+ for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
+ if (pos < indentation) indentString += spaceStr(indentation - pos);
+
+ if (indentString != curSpaceString) {
+ replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
+ line.stateAfter = null;
+ return true;
+ } else {
+ // Ensure that, if the cursor was in the whitespace at the start
+ // of the line, it is moved to the end of that space.
+ for (var i = 0; i < doc.sel.ranges.length; i++) {
+ var range = doc.sel.ranges[i];
+ if (range.head.line == n && range.head.ch < curSpaceString.length) {
+ var pos = Pos(n, curSpaceString.length);
+ replaceOneSelection(doc, i, new Range(pos, pos));
+ break;
+ }
+ }
+ }
+ }
+
+ // Utility for applying a change to a line by handle or number,
+ // returning the number and optionally registering the line as
+ // changed.
+ function changeLine(doc, handle, changeType, op) {
+ var no = handle, line = handle;
+ if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
+ else no = lineNo(handle);
+ if (no == null) return null;
+ if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType);
+ return line;
+ }
+
+ // Helper for deleting text near the selection(s), used to implement
+ // backspace, delete, and similar functionality.
+ function deleteNearSelection(cm, compute) {
+ var ranges = cm.doc.sel.ranges, kill = [];
+ // Build up a set of ranges to kill first, merging overlapping
+ // ranges.
+ for (var i = 0; i < ranges.length; i++) {
+ var toKill = compute(ranges[i]);
+ while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+ var replaced = kill.pop();
+ if (cmp(replaced.from, toKill.from) < 0) {
+ toKill.from = replaced.from;
+ break;
+ }
+ }
+ kill.push(toKill);
+ }
+ // Next, remove those actual ranges.
+ runInOp(cm, function() {
+ for (var i = kill.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete");
+ ensureCursorVisible(cm);
+ });
+ }
+
+ // Used for horizontal relative motion. Dir is -1 or 1 (left or
+ // right), unit can be "char", "column" (like char, but doesn't
+ // cross line boundaries), "word" (across next word), or "group" (to
+ // the start of next group of word or non-word-non-whitespace
+ // chars). The visually param controls whether, in right-to-left
+ // text, direction 1 means to move towards the next index in the
+ // string, or towards the character to the right of the current
+ // position. The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosH(doc, pos, dir, unit, visually) {
+ var line = pos.line, ch = pos.ch, origDir = dir;
+ var lineObj = getLine(doc, line);
+ var possible = true;
+ function findNextLine() {
+ var l = line + dir;
+ if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
+ line = l;
+ return lineObj = getLine(doc, l);
+ }
+ function moveOnce(boundToLine) {
+ var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
+ if (next == null) {
+ if (!boundToLine && findNextLine()) {
+ if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
+ else ch = dir < 0 ? lineObj.text.length : 0;
+ } else return (possible = false);
+ } else ch = next;
+ return true;
+ }
+
+ if (unit == "char") moveOnce();
+ else if (unit == "column") moveOnce(true);
+ else if (unit == "word" || unit == "group") {
+ var sawType = null, group = unit == "group";
+ var helper = doc.cm && doc.cm.getHelper(pos, "wordChars");
+ for (var first = true;; first = false) {
+ if (dir < 0 && !moveOnce(!first)) break;
+ var cur = lineObj.text.charAt(ch) || "\n";
+ var type = isWordChar(cur, helper) ? "w"
+ : group && cur == "\n" ? "n"
+ : !group || /\s/.test(cur) ? null
+ : "p";
+ if (group && !first && !type) type = "s";
+ if (sawType && sawType != type) {
+ if (dir < 0) {dir = 1; moveOnce();}
+ break;
+ }
+
+ if (type) sawType = type;
+ if (dir > 0 && !moveOnce(!first)) break;
+ }
+ }
+ var result = skipAtomic(doc, Pos(line, ch), origDir, true);
+ if (!possible) result.hitSide = true;
+ return result;
+ }
+
+ // For relative vertical movement. Dir may be -1 or 1. Unit can be
+ // "page" or "line". The resulting position will have a hitSide=true
+ // property if it reached the end of the document.
+ function findPosV(cm, pos, dir, unit) {
+ var doc = cm.doc, x = pos.left, y;
+ if (unit == "page") {
+ var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
+ y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
+ } else if (unit == "line") {
+ y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
+ }
+ for (;;) {
+ var target = coordsChar(cm, x, y);
+ if (!target.outside) break;
+ if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
+ y += dir * 5;
+ }
+ return target;
+ }
+
+ // EDITOR METHODS
+
+ // The publicly visible API. Note that methodOp(f) means
+ // 'wrap f in an operation, performed on its `this` parameter'.
+
+ // This is not the complete set of editor methods. Most of the
+ // methods defined on the Doc type are also injected into
+ // CodeMirror.prototype, for backwards compatibility and
+ // convenience.
+
+ CodeMirror.prototype = {
+ constructor: CodeMirror,
+ focus: function(){window.focus(); this.display.input.focus();},
+
+ setOption: function(option, value) {
+ var options = this.options, old = options[option];
+ if (options[option] == value && option != "mode") return;
+ options[option] = value;
+ if (optionHandlers.hasOwnProperty(option))
+ operation(this, optionHandlers[option])(this, value, old);
+ },
+
+ getOption: function(option) {return this.options[option];},
+ getDoc: function() {return this.doc;},
+
+ addKeyMap: function(map, bottom) {
+ this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map));
+ },
+ removeKeyMap: function(map) {
+ var maps = this.state.keyMaps;
+ for (var i = 0; i < maps.length; ++i)
+ if (maps[i] == map || maps[i].name == map) {
+ maps.splice(i, 1);
+ return true;
+ }
+ },
+
+ addOverlay: methodOp(function(spec, options) {
+ var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
+ if (mode.startState) throw new Error("Overlays may not be stateful.");
+ this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
+ this.state.modeGen++;
+ regChange(this);
+ }),
+ removeOverlay: methodOp(function(spec) {
+ var overlays = this.state.overlays;
+ for (var i = 0; i < overlays.length; ++i) {
+ var cur = overlays[i].modeSpec;
+ if (cur == spec || typeof spec == "string" && cur.name == spec) {
+ overlays.splice(i, 1);
+ this.state.modeGen++;
+ regChange(this);
+ return;
+ }
+ }
+ }),
+
+ indentLine: methodOp(function(n, dir, aggressive) {
+ if (typeof dir != "string" && typeof dir != "number") {
+ if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
+ else dir = dir ? "add" : "subtract";
+ }
+ if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
+ }),
+ indentSelection: methodOp(function(how) {
+ var ranges = this.doc.sel.ranges, end = -1;
+ for (var i = 0; i < ranges.length; i++) {
+ var range = ranges[i];
+ if (!range.empty()) {
+ var from = range.from(), to = range.to();
+ var start = Math.max(end, from.line);
+ end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1;
+ for (var j = start; j < end; ++j)
+ indentLine(this, j, how);
+ var newRanges = this.doc.sel.ranges;
+ if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+ replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll);
+ } else if (range.head.line > end) {
+ indentLine(this, range.head.line, how, true);
+ end = range.head.line;
+ if (i == this.doc.sel.primIndex) ensureCursorVisible(this);
+ }
+ }
+ }),
+
+ // Fetch the parser token for a given character. Useful for hacks
+ // that want to inspect the mode state (say, for completion).
+ getTokenAt: function(pos, precise) {
+ return takeToken(this, pos, precise);
+ },
+
+ getLineTokens: function(line, precise) {
+ return takeToken(this, Pos(line), precise, true);
+ },
+
+ getTokenTypeAt: function(pos) {
+ pos = clipPos(this.doc, pos);
+ var styles = getLineStyles(this, getLine(this.doc, pos.line));
+ var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
+ var type;
+ if (ch == 0) type = styles[2];
+ else for (;;) {
+ var mid = (before + after) >> 1;
+ if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
+ else if (styles[mid * 2 + 1] < ch) before = mid + 1;
+ else { type = styles[mid * 2 + 2]; break; }
+ }
+ var cut = type ? type.indexOf("cm-overlay ") : -1;
+ return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1);
+ },
+
+ getModeAt: function(pos) {
+ var mode = this.doc.mode;
+ if (!mode.innerMode) return mode;
+ return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode;
+ },
+
+ getHelper: function(pos, type) {
+ return this.getHelpers(pos, type)[0];
+ },
+
+ getHelpers: function(pos, type) {
+ var found = [];
+ if (!helpers.hasOwnProperty(type)) return found;
+ var help = helpers[type], mode = this.getModeAt(pos);
+ if (typeof mode[type] == "string") {
+ if (help[mode[type]]) found.push(help[mode[type]]);
+ } else if (mode[type]) {
+ for (var i = 0; i < mode[type].length; i++) {
+ var val = help[mode[type][i]];
+ if (val) found.push(val);
+ }
+ } else if (mode.helperType && help[mode.helperType]) {
+ found.push(help[mode.helperType]);
+ } else if (help[mode.name]) {
+ found.push(help[mode.name]);
+ }
+ for (var i = 0; i < help._global.length; i++) {
+ var cur = help._global[i];
+ if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+ found.push(cur.val);
+ }
+ return found;
+ },
+
+ getStateAfter: function(line, precise) {
+ var doc = this.doc;
+ line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
+ return getStateBefore(this, line + 1, precise);
+ },
+
+ cursorCoords: function(start, mode) {
+ var pos, range = this.doc.sel.primary();
+ if (start == null) pos = range.head;
+ else if (typeof start == "object") pos = clipPos(this.doc, start);
+ else pos = start ? range.from() : range.to();
+ return cursorCoords(this, pos, mode || "page");
+ },
+
+ charCoords: function(pos, mode) {
+ return charCoords(this, clipPos(this.doc, pos), mode || "page");
+ },
+
+ coordsChar: function(coords, mode) {
+ coords = fromCoordSystem(this, coords, mode || "page");
+ return coordsChar(this, coords.left, coords.top);
+ },
+
+ lineAtHeight: function(height, mode) {
+ height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
+ return lineAtHeight(this.doc, height + this.display.viewOffset);
+ },
+ heightAtLine: function(line, mode) {
+ var end = false, lineObj;
+ if (typeof line == "number") {
+ var last = this.doc.first + this.doc.size - 1;
+ if (line < this.doc.first) line = this.doc.first;
+ else if (line > last) { line = last; end = true; }
+ lineObj = getLine(this.doc, line);
+ } else {
+ lineObj = line;
+ }
+ return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page").top +
+ (end ? this.doc.height - heightAtLine(lineObj) : 0);
+ },
+
+ defaultTextHeight: function() { return textHeight(this.display); },
+ defaultCharWidth: function() { return charWidth(this.display); },
+
+ setGutterMarker: methodOp(function(line, gutterID, value) {
+ return changeLine(this.doc, line, "gutter", function(line) {
+ var markers = line.gutterMarkers || (line.gutterMarkers = {});
+ markers[gutterID] = value;
+ if (!value && isEmpty(markers)) line.gutterMarkers = null;
+ return true;
+ });
+ }),
+
+ clearGutter: methodOp(function(gutterID) {
+ var cm = this, doc = cm.doc, i = doc.first;
+ doc.iter(function(line) {
+ if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+ line.gutterMarkers[gutterID] = null;
+ regLineChange(cm, i, "gutter");
+ if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
+ }
+ ++i;
+ });
+ }),
+
+ lineInfo: function(line) {
+ if (typeof line == "number") {
+ if (!isLine(this.doc, line)) return null;
+ var n = line;
+ line = getLine(this.doc, line);
+ if (!line) return null;
+ } else {
+ var n = lineNo(line);
+ if (n == null) return null;
+ }
+ return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+ textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+ widgets: line.widgets};
+ },
+
+ getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo};},
+
+ addWidget: function(pos, node, scroll, vert, horiz) {
+ var display = this.display;
+ pos = cursorCoords(this, clipPos(this.doc, pos));
+ var top = pos.bottom, left = pos.left;
+ node.style.position = "absolute";
+ node.setAttribute("cm-ignore-events", "true");
+ this.display.input.setUneditable(node);
+ display.sizer.appendChild(node);
+ if (vert == "over") {
+ top = pos.top;
+ } else if (vert == "above" || vert == "near") {
+ var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+ hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
+ // Default to positioning above (if specified and possible); otherwise default to positioning below
+ if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+ top = pos.top - node.offsetHeight;
+ else if (pos.bottom + node.offsetHeight <= vspace)
+ top = pos.bottom;
+ if (left + node.offsetWidth > hspace)
+ left = hspace - node.offsetWidth;
+ }
+ node.style.top = top + "px";
+ node.style.left = node.style.right = "";
+ if (horiz == "right") {
+ left = display.sizer.clientWidth - node.offsetWidth;
+ node.style.right = "0px";
+ } else {
+ if (horiz == "left") left = 0;
+ else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
+ node.style.left = left + "px";
+ }
+ if (scroll)
+ scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
+ },
+
+ triggerOnKeyDown: methodOp(onKeyDown),
+ triggerOnKeyPress: methodOp(onKeyPress),
+ triggerOnKeyUp: onKeyUp,
+
+ execCommand: function(cmd) {
+ if (commands.hasOwnProperty(cmd))
+ return commands[cmd].call(null, this);
+ },
+
+ triggerElectric: methodOp(function(text) { triggerElectric(this, text); }),
+
+ findPosH: function(from, amount, unit, visually) {
+ var dir = 1;
+ if (amount < 0) { dir = -1; amount = -amount; }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ cur = findPosH(this.doc, cur, dir, unit, visually);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveH: methodOp(function(dir, unit) {
+ var cm = this;
+ cm.extendSelectionsBy(function(range) {
+ if (cm.display.shift || cm.doc.extend || range.empty())
+ return findPosH(cm.doc, range.head, dir, unit, cm.options.rtlMoveVisually);
+ else
+ return dir < 0 ? range.from() : range.to();
+ }, sel_move);
+ }),
+
+ deleteH: methodOp(function(dir, unit) {
+ var sel = this.doc.sel, doc = this.doc;
+ if (sel.somethingSelected())
+ doc.replaceSelection("", null, "+delete");
+ else
+ deleteNearSelection(this, function(range) {
+ var other = findPosH(doc, range.head, dir, unit, false);
+ return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other};
+ });
+ }),
+
+ findPosV: function(from, amount, unit, goalColumn) {
+ var dir = 1, x = goalColumn;
+ if (amount < 0) { dir = -1; amount = -amount; }
+ for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
+ var coords = cursorCoords(this, cur, "div");
+ if (x == null) x = coords.left;
+ else coords.left = x;
+ cur = findPosV(this, coords, dir, unit);
+ if (cur.hitSide) break;
+ }
+ return cur;
+ },
+
+ moveV: methodOp(function(dir, unit) {
+ var cm = this, doc = this.doc, goals = [];
+ var collapse = !cm.display.shift && !doc.extend && doc.sel.somethingSelected();
+ doc.extendSelectionsBy(function(range) {
+ if (collapse)
+ return dir < 0 ? range.from() : range.to();
+ var headPos = cursorCoords(cm, range.head, "div");
+ if (range.goalColumn != null) headPos.left = range.goalColumn;
+ goals.push(headPos.left);
+ var pos = findPosV(cm, headPos, dir, unit);
+ if (unit == "page" && range == doc.sel.primary())
+ addToScrollPos(cm, null, charCoords(cm, pos, "div").top - headPos.top);
+ return pos;
+ }, sel_move);
+ if (goals.length) for (var i = 0; i < doc.sel.ranges.length; i++)
+ doc.sel.ranges[i].goalColumn = goals[i];
+ }),
+
+ // Find the word at the given position (as returned by coordsChar).
+ findWordAt: function(pos) {
+ var doc = this.doc, line = getLine(doc, pos.line).text;
+ var start = pos.ch, end = pos.ch;
+ if (line) {
+ var helper = this.getHelper(pos, "wordChars");
+ if ((pos.xRel < 0 || end == line.length) && start) --start; else ++end;
+ var startChar = line.charAt(start);
+ var check = isWordChar(startChar, helper)
+ ? function(ch) { return isWordChar(ch, helper); }
+ : /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
+ : function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
+ while (start > 0 && check(line.charAt(start - 1))) --start;
+ while (end < line.length && check(line.charAt(end))) ++end;
+ }
+ return new Range(Pos(pos.line, start), Pos(pos.line, end));
+ },
+
+ toggleOverwrite: function(value) {
+ if (value != null && value == this.state.overwrite) return;
+ if (this.state.overwrite = !this.state.overwrite)
+ addClass(this.display.cursorDiv, "CodeMirror-overwrite");
+ else
+ rmClass(this.display.cursorDiv, "CodeMirror-overwrite");
+
+ signal(this, "overwriteToggle", this, this.state.overwrite);
+ },
+ hasFocus: function() { return this.display.input.getField() == activeElt(); },
+
+ scrollTo: methodOp(function(x, y) {
+ if (x != null || y != null) resolveScrollToPos(this);
+ if (x != null) this.curOp.scrollLeft = x;
+ if (y != null) this.curOp.scrollTop = y;
+ }),
+ getScrollInfo: function() {
+ var scroller = this.display.scroller;
+ return {left: scroller.scrollLeft, top: scroller.scrollTop,
+ height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+ width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+ clientHeight: displayHeight(this), clientWidth: displayWidth(this)};
+ },
+
+ scrollIntoView: methodOp(function(range, margin) {
+ if (range == null) {
+ range = {from: this.doc.sel.primary().head, to: null};
+ if (margin == null) margin = this.options.cursorScrollMargin;
+ } else if (typeof range == "number") {
+ range = {from: Pos(range, 0), to: null};
+ } else if (range.from == null) {
+ range = {from: range, to: null};
+ }
+ if (!range.to) range.to = range.from;
+ range.margin = margin || 0;
+
+ if (range.from.line != null) {
+ resolveScrollToPos(this);
+ this.curOp.scrollToPos = range;
+ } else {
+ var sPos = calculateScrollPos(this, Math.min(range.from.left, range.to.left),
+ Math.min(range.from.top, range.to.top) - range.margin,
+ Math.max(range.from.right, range.to.right),
+ Math.max(range.from.bottom, range.to.bottom) + range.margin);
+ this.scrollTo(sPos.scrollLeft, sPos.scrollTop);
+ }
+ }),
+
+ setSize: methodOp(function(width, height) {
+ var cm = this;
+ function interpret(val) {
+ return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
+ }
+ if (width != null) cm.display.wrapper.style.width = interpret(width);
+ if (height != null) cm.display.wrapper.style.height = interpret(height);
+ if (cm.options.lineWrapping) clearLineMeasurementCache(this);
+ var lineNo = cm.display.viewFrom;
+ cm.doc.iter(lineNo, cm.display.viewTo, function(line) {
+ if (line.widgets) for (var i = 0; i < line.widgets.length; i++)
+ if (line.widgets[i].noHScroll) { regLineChange(cm, lineNo, "widget"); break; }
+ ++lineNo;
+ });
+ cm.curOp.forceUpdate = true;
+ signal(cm, "refresh", this);
+ }),
+
+ operation: function(f){return runInOp(this, f);},
+
+ refresh: methodOp(function() {
+ var oldHeight = this.display.cachedTextHeight;
+ regChange(this);
+ this.curOp.forceUpdate = true;
+ clearCaches(this);
+ this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop);
+ updateGutterSpace(this);
+ if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+ estimateLineHeights(this);
+ signal(this, "refresh", this);
+ }),
+
+ swapDoc: methodOp(function(doc) {
+ var old = this.doc;
+ old.cm = null;
+ attachDoc(this, doc);
+ clearCaches(this);
+ this.display.input.reset();
+ this.scrollTo(doc.scrollLeft, doc.scrollTop);
+ this.curOp.forceScroll = true;
+ signalLater(this, "swapDoc", this, old);
+ return old;
+ }),
+
+ getInputField: function(){return this.display.input.getField();},
+ getWrapperElement: function(){return this.display.wrapper;},
+ getScrollerElement: function(){return this.display.scroller;},
+ getGutterElement: function(){return this.display.gutters;}
+ };
+ eventMixin(CodeMirror);
+
+ // OPTION DEFAULTS
+
+ // The default configuration options.
+ var defaults = CodeMirror.defaults = {};
+ // Functions to run when options are changed.
+ var optionHandlers = CodeMirror.optionHandlers = {};
+
+ function option(name, deflt, handle, notOnInit) {
+ CodeMirror.defaults[name] = deflt;
+ if (handle) optionHandlers[name] =
+ notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
+ }
+
+ // Passed to option handlers when there is no old value.
+ var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
+
+ // These two are, on init, called from the constructor because they
+ // have to be initialized before the editor can start at all.
+ option("value", "", function(cm, val) {
+ cm.setValue(val);
+ }, true);
+ option("mode", null, function(cm, val) {
+ cm.doc.modeOption = val;
+ loadMode(cm);
+ }, true);
+
+ option("indentUnit", 2, loadMode, true);
+ option("indentWithTabs", false);
+ option("smartIndent", true);
+ option("tabSize", 4, function(cm) {
+ resetModeState(cm);
+ clearCaches(cm);
+ regChange(cm);
+ }, true);
+ option("lineSeparator", null, function(cm, val) {
+ cm.doc.lineSep = val;
+ if (!val) return;
+ var newBreaks = [], lineNo = cm.doc.first;
+ cm.doc.iter(function(line) {
+ for (var pos = 0;;) {
+ var found = line.text.indexOf(val, pos);
+ if (found == -1) break;
+ pos = found + val.length;
+ newBreaks.push(Pos(lineNo, found));
+ }
+ lineNo++;
+ });
+ for (var i = newBreaks.length - 1; i >= 0; i--)
+ replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
+ });
+ option("specialChars", /[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g, function(cm, val, old) {
+ cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g");
+ if (old != CodeMirror.Init) cm.refresh();
+ });
+ option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function(cm) {cm.refresh();}, true);
+ option("electricChars", true);
+ option("inputStyle", mobile ? "contenteditable" : "textarea", function() {
+ throw new Error("inputStyle can not (yet) be changed in a running editor"); // FIXME
+ }, true);
+ option("rtlMoveVisually", !windows);
+ option("wholeLineUpdateBefore", true);
+
+ option("theme", "default", function(cm) {
+ themeChanged(cm);
+ guttersChanged(cm);
+ }, true);
+ option("keyMap", "default", function(cm, val, old) {
+ var next = getKeyMap(val);
+ var prev = old != CodeMirror.Init && getKeyMap(old);
+ if (prev && prev.detach) prev.detach(cm, next);
+ if (next.attach) next.attach(cm, prev || null);
+ });
+ option("extraKeys", null);
+
+ option("lineWrapping", false, wrappingChanged, true);
+ option("gutters", [], function(cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ }, true);
+ option("fixedGutter", true, function(cm, val) {
+ cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
+ cm.refresh();
+ }, true);
+ option("coverGutterNextToScrollbar", false, function(cm) {updateScrollbars(cm);}, true);
+ option("scrollbarStyle", "native", function(cm) {
+ initScrollbars(cm);
+ updateScrollbars(cm);
+ cm.display.scrollbars.setScrollTop(cm.doc.scrollTop);
+ cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft);
+ }, true);
+ option("lineNumbers", false, function(cm) {
+ setGuttersForLineNumbers(cm.options);
+ guttersChanged(cm);
+ }, true);
+ option("firstLineNumber", 1, guttersChanged, true);
+ option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
+ option("showCursorWhenSelecting", false, updateSelection, true);
+
+ option("resetSelectionOnContextMenu", true);
+ option("lineWiseCopyCut", true);
+
+ option("readOnly", false, function(cm, val) {
+ if (val == "nocursor") {
+ onBlur(cm);
+ cm.display.input.blur();
+ cm.display.disabled = true;
+ } else {
+ cm.display.disabled = false;
+ }
+ cm.display.input.readOnlyChanged(val)
+ });
+ option("disableInput", false, function(cm, val) {if (!val) cm.display.input.reset();}, true);
+ option("dragDrop", true, dragDropChanged);
+ option("allowDropFileTypes", null);
+
+ option("cursorBlinkRate", 530);
+ option("cursorScrollMargin", 0);
+ option("cursorHeight", 1, updateSelection, true);
+ option("singleCursorHeightPerLine", true, updateSelection, true);
+ option("workTime", 100);
+ option("workDelay", 100);
+ option("flattenSpans", true, resetModeState, true);
+ option("addModeClass", false, resetModeState, true);
+ option("pollInterval", 100);
+ option("undoDepth", 200, function(cm, val){cm.doc.history.undoDepth = val;});
+ option("historyEventDelay", 1250);
+ option("viewportMargin", 10, function(cm){cm.refresh();}, true);
+ option("maxHighlightLength", 10000, resetModeState, true);
+ option("moveInputWithCursor", true, function(cm, val) {
+ if (!val) cm.display.input.resetPosition();
+ });
+
+ option("tabindex", null, function(cm, val) {
+ cm.display.input.getField().tabIndex = val || "";
+ });
+ option("autofocus", null);
+
+ // MODE DEFINITION AND QUERYING
+
+ // Known modes, by name and by MIME
+ var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
+
+ // Extra arguments are stored as the mode's dependencies, which is
+ // used by (legacy) mechanisms like loadmode.js to automatically
+ // load a mode. (Preferred mechanism is the require/define calls.)
+ CodeMirror.defineMode = function(name, mode) {
+ if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
+ if (arguments.length > 2)
+ mode.dependencies = Array.prototype.slice.call(arguments, 2);
+ modes[name] = mode;
+ };
+
+ CodeMirror.defineMIME = function(mime, spec) {
+ mimeModes[mime] = spec;
+ };
+
+ // Given a MIME type, a {name, ...options} config object, or a name
+ // string, return a mode config object.
+ CodeMirror.resolveMode = function(spec) {
+ if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+ spec = mimeModes[spec];
+ } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+ var found = mimeModes[spec.name];
+ if (typeof found == "string") found = {name: found};
+ spec = createObj(found, spec);
+ spec.name = found.name;
+ } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+ return CodeMirror.resolveMode("application/xml");
+ }
+ if (typeof spec == "string") return {name: spec};
+ else return spec || {name: "null"};
+ };
+
+ // Given a mode spec (anything that resolveMode accepts), find and
+ // initialize an actual mode object.
+ CodeMirror.getMode = function(options, spec) {
+ var spec = CodeMirror.resolveMode(spec);
+ var mfactory = modes[spec.name];
+ if (!mfactory) return CodeMirror.getMode(options, "text/plain");
+ var modeObj = mfactory(options, spec);
+ if (modeExtensions.hasOwnProperty(spec.name)) {
+ var exts = modeExtensions[spec.name];
+ for (var prop in exts) {
+ if (!exts.hasOwnProperty(prop)) continue;
+ if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
+ modeObj[prop] = exts[prop];
+ }
+ }
+ modeObj.name = spec.name;
+ if (spec.helperType) modeObj.helperType = spec.helperType;
+ if (spec.modeProps) for (var prop in spec.modeProps)
+ modeObj[prop] = spec.modeProps[prop];
+
+ return modeObj;
+ };
+
+ // Minimal default mode.
+ CodeMirror.defineMode("null", function() {
+ return {token: function(stream) {stream.skipToEnd();}};
+ });
+ CodeMirror.defineMIME("text/plain", "null");
+
+ // This can be used to attach properties to mode objects from
+ // outside the actual mode definition.
+ var modeExtensions = CodeMirror.modeExtensions = {};
+ CodeMirror.extendMode = function(mode, properties) {
+ var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
+ copyObj(properties, exts);
+ };
+
+ // EXTENSIONS
+
+ CodeMirror.defineExtension = function(name, func) {
+ CodeMirror.prototype[name] = func;
+ };
+ CodeMirror.defineDocExtension = function(name, func) {
+ Doc.prototype[name] = func;
+ };
+ CodeMirror.defineOption = option;
+
+ var initHooks = [];
+ CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
+
+ var helpers = CodeMirror.helpers = {};
+ CodeMirror.registerHelper = function(type, name, value) {
+ if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []};
+ helpers[type][name] = value;
+ };
+ CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+ CodeMirror.registerHelper(type, name, value);
+ helpers[type]._global.push({pred: predicate, val: value});
+ };
+
+ // MODE STATE HANDLING
+
+ // Utility functions for working with state. Exported because nested
+ // modes need to do this for their inner modes.
+
+ var copyState = CodeMirror.copyState = function(mode, state) {
+ if (state === true) return state;
+ if (mode.copyState) return mode.copyState(state);
+ var nstate = {};
+ for (var n in state) {
+ var val = state[n];
+ if (val instanceof Array) val = val.concat([]);
+ nstate[n] = val;
+ }
+ return nstate;
+ };
+
+ var startState = CodeMirror.startState = function(mode, a1, a2) {
+ return mode.startState ? mode.startState(a1, a2) : true;
+ };
+
+ // Given a mode and a state (for that mode), find the inner mode and
+ // state at the position that the state refers to.
+ CodeMirror.innerMode = function(mode, state) {
+ while (mode.innerMode) {
+ var info = mode.innerMode(state);
+ if (!info || info.mode == mode) break;
+ state = info.state;
+ mode = info.mode;
+ }
+ return info || {mode: mode, state: state};
+ };
+
+ // STANDARD COMMANDS
+
+ // Commands are parameter-less actions that can be performed on an
+ // editor, mostly used for keybindings.
+ var commands = CodeMirror.commands = {
+ selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll);},
+ singleSelection: function(cm) {
+ cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll);
+ },
+ killLine: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ if (range.empty()) {
+ var len = getLine(cm.doc, range.head.line).text.length;
+ if (range.head.ch == len && range.head.line < cm.lastLine())
+ return {from: range.head, to: Pos(range.head.line + 1, 0)};
+ else
+ return {from: range.head, to: Pos(range.head.line, len)};
+ } else {
+ return {from: range.from(), to: range.to()};
+ }
+ });
+ },
+ deleteLine: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ return {from: Pos(range.from().line, 0),
+ to: clipPos(cm.doc, Pos(range.to().line + 1, 0))};
+ });
+ },
+ delLineLeft: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ return {from: Pos(range.from().line, 0), to: range.from()};
+ });
+ },
+ delWrappedLineLeft: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var leftPos = cm.coordsChar({left: 0, top: top}, "div");
+ return {from: leftPos, to: range.from()};
+ });
+ },
+ delWrappedLineRight: function(cm) {
+ deleteNearSelection(cm, function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+ return {from: range.from(), to: rightPos };
+ });
+ },
+ undo: function(cm) {cm.undo();},
+ redo: function(cm) {cm.redo();},
+ undoSelection: function(cm) {cm.undoSelection();},
+ redoSelection: function(cm) {cm.redoSelection();},
+ goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
+ goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
+ goLineStart: function(cm) {
+ cm.extendSelectionsBy(function(range) { return lineStart(cm, range.head.line); },
+ {origin: "+move", bias: 1});
+ },
+ goLineStartSmart: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ return lineStartSmart(cm, range.head);
+ }, {origin: "+move", bias: 1});
+ },
+ goLineEnd: function(cm) {
+ cm.extendSelectionsBy(function(range) { return lineEnd(cm, range.head.line); },
+ {origin: "+move", bias: -1});
+ },
+ goLineRight: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div");
+ }, sel_move);
+ },
+ goLineLeft: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ return cm.coordsChar({left: 0, top: top}, "div");
+ }, sel_move);
+ },
+ goLineLeftSmart: function(cm) {
+ cm.extendSelectionsBy(function(range) {
+ var top = cm.charCoords(range.head, "div").top + 5;
+ var pos = cm.coordsChar({left: 0, top: top}, "div");
+ if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head);
+ return pos;
+ }, sel_move);
+ },
+ goLineUp: function(cm) {cm.moveV(-1, "line");},
+ goLineDown: function(cm) {cm.moveV(1, "line");},
+ goPageUp: function(cm) {cm.moveV(-1, "page");},
+ goPageDown: function(cm) {cm.moveV(1, "page");},
+ goCharLeft: function(cm) {cm.moveH(-1, "char");},
+ goCharRight: function(cm) {cm.moveH(1, "char");},
+ goColumnLeft: function(cm) {cm.moveH(-1, "column");},
+ goColumnRight: function(cm) {cm.moveH(1, "column");},
+ goWordLeft: function(cm) {cm.moveH(-1, "word");},
+ goGroupRight: function(cm) {cm.moveH(1, "group");},
+ goGroupLeft: function(cm) {cm.moveH(-1, "group");},
+ goWordRight: function(cm) {cm.moveH(1, "word");},
+ delCharBefore: function(cm) {cm.deleteH(-1, "char");},
+ delCharAfter: function(cm) {cm.deleteH(1, "char");},
+ delWordBefore: function(cm) {cm.deleteH(-1, "word");},
+ delWordAfter: function(cm) {cm.deleteH(1, "word");},
+ delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
+ delGroupAfter: function(cm) {cm.deleteH(1, "group");},
+ indentAuto: function(cm) {cm.indentSelection("smart");},
+ indentMore: function(cm) {cm.indentSelection("add");},
+ indentLess: function(cm) {cm.indentSelection("subtract");},
+ insertTab: function(cm) {cm.replaceSelection("\t");},
+ insertSoftTab: function(cm) {
+ var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize;
+ for (var i = 0; i < ranges.length; i++) {
+ var pos = ranges[i].from();
+ var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize);
+ spaces.push(new Array(tabSize - col % tabSize + 1).join(" "));
+ }
+ cm.replaceSelections(spaces);
+ },
+ defaultTab: function(cm) {
+ if (cm.somethingSelected()) cm.indentSelection("add");
+ else cm.execCommand("insertTab");
+ },
+ transposeChars: function(cm) {
+ runInOp(cm, function() {
+ var ranges = cm.listSelections(), newSel = [];
+ for (var i = 0; i < ranges.length; i++) {
+ var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text;
+ if (line) {
+ if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1);
+ if (cur.ch > 0) {
+ cur = new Pos(cur.line, cur.ch + 1);
+ cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+ Pos(cur.line, cur.ch - 2), cur, "+transpose");
+ } else if (cur.line > cm.doc.first) {
+ var prev = getLine(cm.doc, cur.line - 1).text;
+ if (prev)
+ cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+ prev.charAt(prev.length - 1),
+ Pos(cur.line - 1, prev.length - 1), Pos(cur.line, 1), "+transpose");
+ }
+ }
+ newSel.push(new Range(cur, cur));
+ }
+ cm.setSelections(newSel);
+ });
+ },
+ newlineAndIndent: function(cm) {
+ runInOp(cm, function() {
+ var len = cm.listSelections().length;
+ for (var i = 0; i < len; i++) {
+ var range = cm.listSelections()[i];
+ cm.replaceRange(cm.doc.lineSeparator(), range.anchor, range.head, "+input");
+ cm.indentLine(range.from().line + 1, null, true);
+ }
+ ensureCursorVisible(cm);
+ });
+ },
+ toggleOverwrite: function(cm) {cm.toggleOverwrite();}
+ };
+
+
+ // STANDARD KEYMAPS
+
+ var keyMap = CodeMirror.keyMap = {};
+
+ keyMap.basic = {
+ "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+ "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+ "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+ "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+ "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+ "Esc": "singleSelection"
+ };
+ // Note that the save and find-related commands aren't defined by
+ // default. User code or addons can define them. Unknown commands
+ // are simply ignored.
+ keyMap.pcDefault = {
+ "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+ "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+ "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+ "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+ "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+ "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+ "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+ fallthrough: "basic"
+ };
+ // Very basic readline/emacs-style bindings, which are standard on Mac.
+ keyMap.emacsy = {
+ "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+ "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+ "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+ "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
+ };
+ keyMap.macDefault = {
+ "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+ "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+ "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+ "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+ "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+ "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+ "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+ fallthrough: ["basic", "emacsy"]
+ };
+ keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
+
+ // KEYMAP DISPATCH
+
+ function normalizeKeyName(name) {
+ var parts = name.split(/-(?!$)/), name = parts[parts.length - 1];
+ var alt, ctrl, shift, cmd;
+ for (var i = 0; i < parts.length - 1; i++) {
+ var mod = parts[i];
+ if (/^(cmd|meta|m)$/i.test(mod)) cmd = true;
+ else if (/^a(lt)?$/i.test(mod)) alt = true;
+ else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true;
+ else if (/^s(hift)$/i.test(mod)) shift = true;
+ else throw new Error("Unrecognized modifier name: " + mod);
+ }
+ if (alt) name = "Alt-" + name;
+ if (ctrl) name = "Ctrl-" + name;
+ if (cmd) name = "Cmd-" + name;
+ if (shift) name = "Shift-" + name;
+ return name;
+ }
+
+ // This is a kludge to keep keymaps mostly working as raw objects
+ // (backwards compatibility) while at the same time support features
+ // like normalization and multi-stroke key bindings. It compiles a
+ // new normalized keymap, and then updates the old object to reflect
+ // this.
+ CodeMirror.normalizeKeyMap = function(keymap) {
+ var copy = {};
+ for (var keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
+ var value = keymap[keyname];
+ if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue;
+ if (value == "...") { delete keymap[keyname]; continue; }
+
+ var keys = map(keyname.split(" "), normalizeKeyName);
+ for (var i = 0; i < keys.length; i++) {
+ var val, name;
+ if (i == keys.length - 1) {
+ name = keys.join(" ");
+ val = value;
+ } else {
+ name = keys.slice(0, i + 1).join(" ");
+ val = "...";
+ }
+ var prev = copy[name];
+ if (!prev) copy[name] = val;
+ else if (prev != val) throw new Error("Inconsistent bindings for " + name);
+ }
+ delete keymap[keyname];
+ }
+ for (var prop in copy) keymap[prop] = copy[prop];
+ return keymap;
+ };
+
+ var lookupKey = CodeMirror.lookupKey = function(key, map, handle, context) {
+ map = getKeyMap(map);
+ var found = map.call ? map.call(key, context) : map[key];
+ if (found === false) return "nothing";
+ if (found === "...") return "multi";
+ if (found != null && handle(found)) return "handled";
+
+ if (map.fallthrough) {
+ if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+ return lookupKey(key, map.fallthrough, handle, context);
+ for (var i = 0; i < map.fallthrough.length; i++) {
+ var result = lookupKey(key, map.fallthrough[i], handle, context);
+ if (result) return result;
+ }
+ }
+ };
+
+ // Modifier key presses don't count as 'real' key presses for the
+ // purpose of keymap fallthrough.
+ var isModifierKey = CodeMirror.isModifierKey = function(value) {
+ var name = typeof value == "string" ? value : keyNames[value.keyCode];
+ return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
+ };
+
+ // Look up the name of a key as indicated by an event object.
+ var keyName = CodeMirror.keyName = function(event, noShift) {
+ if (presto && event.keyCode == 34 && event["char"]) return false;
+ var base = keyNames[event.keyCode], name = base;
+ if (name == null || event.altGraphKey) return false;
+ if (event.altKey && base != "Alt") name = "Alt-" + name;
+ if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name;
+ if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name;
+ if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name;
+ return name;
+ };
+
+ function getKeyMap(val) {
+ return typeof val == "string" ? keyMap[val] : val;
+ }
+
+ // FROMTEXTAREA
+
+ CodeMirror.fromTextArea = function(textarea, options) {
+ options = options ? copyObj(options) : {};
+ options.value = textarea.value;
+ if (!options.tabindex && textarea.tabIndex)
+ options.tabindex = textarea.tabIndex;
+ if (!options.placeholder && textarea.placeholder)
+ options.placeholder = textarea.placeholder;
+ // Set autofocus to true if this textarea is focused, or if it has
+ // autofocus and no other element is focused.
+ if (options.autofocus == null) {
+ var hasFocus = activeElt();
+ options.autofocus = hasFocus == textarea ||
+ textarea.getAttribute("autofocus") != null && hasFocus == document.body;
+ }
+
+ function save() {textarea.value = cm.getValue();}
+ if (textarea.form) {
+ on(textarea.form, "submit", save);
+ // Deplorable hack to make the submit method do the right thing.
+ if (!options.leaveSubmitMethodAlone) {
+ var form = textarea.form, realSubmit = form.submit;
+ try {
+ var wrappedSubmit = form.submit = function() {
+ save();
+ form.submit = realSubmit;
+ form.submit();
+ form.submit = wrappedSubmit;
+ };
+ } catch(e) {}
+ }
+ }
+
+ options.finishInit = function(cm) {
+ cm.save = save;
+ cm.getTextArea = function() { return textarea; };
+ cm.toTextArea = function() {
+ cm.toTextArea = isNaN; // Prevent this from being ran twice
+ save();
+ textarea.parentNode.removeChild(cm.getWrapperElement());
+ textarea.style.display = "";
+ if (textarea.form) {
+ off(textarea.form, "submit", save);
+ if (typeof textarea.form.submit == "function")
+ textarea.form.submit = realSubmit;
+ }
+ };
+ };
+
+ textarea.style.display = "none";
+ var cm = CodeMirror(function(node) {
+ textarea.parentNode.insertBefore(node, textarea.nextSibling);
+ }, options);
+ return cm;
+ };
+
+ // STRING STREAM
+
+ // Fed to the mode parsers, provides helper functions to make
+ // parsers more succinct.
+
+ var StringStream = CodeMirror.StringStream = function(string, tabSize) {
+ this.pos = this.start = 0;
+ this.string = string;
+ this.tabSize = tabSize || 8;
+ this.lastColumnPos = this.lastColumnValue = 0;
+ this.lineStart = 0;
+ };
+
+ StringStream.prototype = {
+ eol: function() {return this.pos >= this.string.length;},
+ sol: function() {return this.pos == this.lineStart;},
+ peek: function() {return this.string.charAt(this.pos) || undefined;},
+ next: function() {
+ if (this.pos < this.string.length)
+ return this.string.charAt(this.pos++);
+ },
+ eat: function(match) {
+ var ch = this.string.charAt(this.pos);
+ if (typeof match == "string") var ok = ch == match;
+ else var ok = ch && (match.test ? match.test(ch) : match(ch));
+ if (ok) {++this.pos; return ch;}
+ },
+ eatWhile: function(match) {
+ var start = this.pos;
+ while (this.eat(match)){}
+ return this.pos > start;
+ },
+ eatSpace: function() {
+ var start = this.pos;
+ while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
+ return this.pos > start;
+ },
+ skipToEnd: function() {this.pos = this.string.length;},
+ skipTo: function(ch) {
+ var found = this.string.indexOf(ch, this.pos);
+ if (found > -1) {this.pos = found; return true;}
+ },
+ backUp: function(n) {this.pos -= n;},
+ column: function() {
+ if (this.lastColumnPos < this.start) {
+ this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
+ this.lastColumnPos = this.start;
+ }
+ return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+ },
+ indentation: function() {
+ return countColumn(this.string, null, this.tabSize) -
+ (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0);
+ },
+ match: function(pattern, consume, caseInsensitive) {
+ if (typeof pattern == "string") {
+ var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
+ var substr = this.string.substr(this.pos, pattern.length);
+ if (cased(substr) == cased(pattern)) {
+ if (consume !== false) this.pos += pattern.length;
+ return true;
+ }
+ } else {
+ var match = this.string.slice(this.pos).match(pattern);
+ if (match && match.index > 0) return null;
+ if (match && consume !== false) this.pos += match[0].length;
+ return match;
+ }
+ },
+ current: function(){return this.string.slice(this.start, this.pos);},
+ hideFirstChars: function(n, inner) {
+ this.lineStart += n;
+ try { return inner(); }
+ finally { this.lineStart -= n; }
+ }
+ };
+
+ // TEXTMARKERS
+
+ // Created with markText and setBookmark methods. A TextMarker is a
+ // handle that can be used to clear or find a marked position in the
+ // document. Line objects hold arrays (markedSpans) containing
+ // {from, to, marker} object pointing to such marker objects, and
+ // indicating that such a marker is present on that line. Multiple
+ // lines may point to the same marker when it spans across lines.
+ // The spans will have null for their from/to properties when the
+ // marker continues beyond the start/end of the line. Markers have
+ // links back to the lines they currently touch.
+
+ var nextMarkerId = 0;
+
+ var TextMarker = CodeMirror.TextMarker = function(doc, type) {
+ this.lines = [];
+ this.type = type;
+ this.doc = doc;
+ this.id = ++nextMarkerId;
+ };
+ eventMixin(TextMarker);
+
+ // Clear the marker.
+ TextMarker.prototype.clear = function() {
+ if (this.explicitlyCleared) return;
+ var cm = this.doc.cm, withOp = cm && !cm.curOp;
+ if (withOp) startOperation(cm);
+ if (hasHandler(this, "clear")) {
+ var found = this.find();
+ if (found) signalLater(this, "clear", found.from, found.to);
+ }
+ var min = null, max = null;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text");
+ else if (cm) {
+ if (span.to != null) max = lineNo(line);
+ if (span.from != null) min = lineNo(line);
+ }
+ line.markedSpans = removeMarkedSpan(line.markedSpans, span);
+ if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+ updateLineHeight(line, textHeight(cm.display));
+ }
+ if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
+ var visual = visualLine(this.lines[i]), len = lineLength(visual);
+ if (len > cm.display.maxLineLength) {
+ cm.display.maxLine = visual;
+ cm.display.maxLineLength = len;
+ cm.display.maxLineChanged = true;
+ }
+ }
+
+ if (min != null && cm && this.collapsed) regChange(cm, min, max + 1);
+ this.lines.length = 0;
+ this.explicitlyCleared = true;
+ if (this.atomic && this.doc.cantEdit) {
+ this.doc.cantEdit = false;
+ if (cm) reCheckSelection(cm.doc);
+ }
+ if (cm) signalLater(cm, "markerCleared", cm, this);
+ if (withOp) endOperation(cm);
+ if (this.parent) this.parent.clear();
+ };
+
+ // Find the position of the marker in the document. Returns a {from,
+ // to} object by default. Side can be passed to get a specific side
+ // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+ // Pos objects returned contain a line object, rather than a line
+ // number (used to prevent looking up the same line twice).
+ TextMarker.prototype.find = function(side, lineObj) {
+ if (side == null && this.type == "bookmark") side = 1;
+ var from, to;
+ for (var i = 0; i < this.lines.length; ++i) {
+ var line = this.lines[i];
+ var span = getMarkedSpanFor(line.markedSpans, this);
+ if (span.from != null) {
+ from = Pos(lineObj ? line : lineNo(line), span.from);
+ if (side == -1) return from;
+ }
+ if (span.to != null) {
+ to = Pos(lineObj ? line : lineNo(line), span.to);
+ if (side == 1) return to;
+ }
+ }
+ return from && {from: from, to: to};
+ };
+
+ // Signals that the marker's widget changed, and surrounding layout
+ // should be recomputed.
+ TextMarker.prototype.changed = function() {
+ var pos = this.find(-1, true), widget = this, cm = this.doc.cm;
+ if (!pos || !cm) return;
+ runInOp(cm, function() {
+ var line = pos.line, lineN = lineNo(pos.line);
+ var view = findViewForLine(cm, lineN);
+ if (view) {
+ clearLineMeasurementCacheFor(view);
+ cm.curOp.selectionChanged = cm.curOp.forceUpdate = true;
+ }
+ cm.curOp.updateMaxLine = true;
+ if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+ var oldHeight = widget.height;
+ widget.height = null;
+ var dHeight = widgetHeight(widget) - oldHeight;
+ if (dHeight)
+ updateLineHeight(line, line.height + dHeight);
+ }
+ });
+ };
+
+ TextMarker.prototype.attachLine = function(line) {
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+ (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
+ }
+ this.lines.push(line);
+ };
+ TextMarker.prototype.detachLine = function(line) {
+ this.lines.splice(indexOf(this.lines, line), 1);
+ if (!this.lines.length && this.doc.cm) {
+ var op = this.doc.cm.curOp;
+ (op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
+ }
+ };
+
+ // Collapsed markers have unique ids, in order to be able to order
+ // them, which is needed for uniquely determining an outer marker
+ // when they overlap (they may nest, but not partially overlap).
+ var nextMarkerId = 0;
+
+ // Create a marker, wire it up to the right lines, and
+ function markText(doc, from, to, options, type) {
+ // Shared markers (across linked documents) are handled separately
+ // (markTextShared will call out to this again, once per
+ // document).
+ if (options && options.shared) return markTextShared(doc, from, to, options, type);
+ // Ensure we are in an operation.
+ if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
+
+ var marker = new TextMarker(doc, type), diff = cmp(from, to);
+ if (options) copyObj(options, marker, false);
+ // Don't connect empty markers unless clearWhenEmpty is false
+ if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+ return marker;
+ if (marker.replacedWith) {
+ // Showing up as a widget implies collapsed (widget replaces text)
+ marker.collapsed = true;
+ marker.widgetNode = elt("span", [marker.replacedWith], "CodeMirror-widget");
+ if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true");
+ if (options.insertLeft) marker.widgetNode.insertLeft = true;
+ }
+ if (marker.collapsed) {
+ if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+ from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+ throw new Error("Inserting collapsed marker partially overlapping an existing one");
+ sawCollapsedSpans = true;
+ }
+
+ if (marker.addToHistory)
+ addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN);
+
+ var curLine = from.line, cm = doc.cm, updateMaxLine;
+ doc.iter(curLine, to.line + 1, function(line) {
+ if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+ updateMaxLine = true;
+ if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0);
+ addMarkedSpan(line, new MarkedSpan(marker,
+ curLine == from.line ? from.ch : null,
+ curLine == to.line ? to.ch : null));
+ ++curLine;
+ });
+ // lineIsHidden depends on the presence of the spans, so needs a second pass
+ if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
+ if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
+ });
+
+ if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
+
+ if (marker.readOnly) {
+ sawReadOnlySpans = true;
+ if (doc.history.done.length || doc.history.undone.length)
+ doc.clearHistory();
+ }
+ if (marker.collapsed) {
+ marker.id = ++nextMarkerId;
+ marker.atomic = true;
+ }
+ if (cm) {
+ // Sync editor state
+ if (updateMaxLine) cm.curOp.updateMaxLine = true;
+ if (marker.collapsed)
+ regChange(cm, from.line, to.line + 1);
+ else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+ for (var i = from.line; i <= to.line; i++) regLineChange(cm, i, "text");
+ if (marker.atomic) reCheckSelection(cm.doc);
+ signalLater(cm, "markerAdded", cm, marker);
+ }
+ return marker;
+ }
+
+ // SHARED TEXTMARKERS
+
+ // A shared marker spans multiple linked documents. It is
+ // implemented as a meta-marker-object controlling multiple normal
+ // markers.
+ var SharedTextMarker = CodeMirror.SharedTextMarker = function(markers, primary) {
+ this.markers = markers;
+ this.primary = primary;
+ for (var i = 0; i < markers.length; ++i)
+ markers[i].parent = this;
+ };
+ eventMixin(SharedTextMarker);
+
+ SharedTextMarker.prototype.clear = function() {
+ if (this.explicitlyCleared) return;
+ this.explicitlyCleared = true;
+ for (var i = 0; i < this.markers.length; ++i)
+ this.markers[i].clear();
+ signalLater(this, "clear");
+ };
+ SharedTextMarker.prototype.find = function(side, lineObj) {
+ return this.primary.find(side, lineObj);
+ };
+
+ function markTextShared(doc, from, to, options, type) {
+ options = copyObj(options);
+ options.shared = false;
+ var markers = [markText(doc, from, to, options, type)], primary = markers[0];
+ var widget = options.widgetNode;
+ linkedDocs(doc, function(doc) {
+ if (widget) options.widgetNode = widget.cloneNode(true);
+ markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
+ for (var i = 0; i < doc.linked.length; ++i)
+ if (doc.linked[i].isParent) return;
+ primary = lst(markers);
+ });
+ return new SharedTextMarker(markers, primary);
+ }
+
+ function findSharedMarkers(doc) {
+ return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())),
+ function(m) { return m.parent; });
+ }
+
+ function copySharedMarkers(doc, markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], pos = marker.find();
+ var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to);
+ if (cmp(mFrom, mTo)) {
+ var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type);
+ marker.markers.push(subMark);
+ subMark.parent = marker;
+ }
+ }
+ }
+
+ function detachSharedMarkers(markers) {
+ for (var i = 0; i < markers.length; i++) {
+ var marker = markers[i], linked = [marker.primary.doc];;
+ linkedDocs(marker.primary.doc, function(d) { linked.push(d); });
+ for (var j = 0; j < marker.markers.length; j++) {
+ var subMarker = marker.markers[j];
+ if (indexOf(linked, subMarker.doc) == -1) {
+ subMarker.parent = null;
+ marker.markers.splice(j--, 1);
+ }
+ }
+ }
+ }
+
+ // TEXTMARKER SPANS
+
+ function MarkedSpan(marker, from, to) {
+ this.marker = marker;
+ this.from = from; this.to = to;
+ }
+
+ // Search an array of spans for a span matching the given marker.
+ function getMarkedSpanFor(spans, marker) {
+ if (spans) for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.marker == marker) return span;
+ }
+ }
+ // Remove a span from an array, returning undefined if no spans are
+ // left (we don't store arrays for lines without spans).
+ function removeMarkedSpan(spans, span) {
+ for (var r, i = 0; i < spans.length; ++i)
+ if (spans[i] != span) (r || (r = [])).push(spans[i]);
+ return r;
+ }
+ // Add a span to a line.
+ function addMarkedSpan(line, span) {
+ line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
+ span.marker.attachLine(line);
+ }
+
+ // Used for the algorithm that adjusts markers for a change in the
+ // document. These functions cut an array of spans at a given
+ // character position, returning an array of remaining chunks (or
+ // undefined if nothing remains).
+ function markedSpansBefore(old, startCh, isInsert) {
+ if (old) for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i], marker = span.marker;
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
+ if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
+ (nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to));
+ }
+ }
+ return nw;
+ }
+ function markedSpansAfter(old, endCh, isInsert) {
+ if (old) for (var i = 0, nw; i < old.length; ++i) {
+ var span = old[i], marker = span.marker;
+ var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
+ if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+ var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
+ (nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+ span.to == null ? null : span.to - endCh));
+ }
+ }
+ return nw;
+ }
+
+ // Given a change object, compute the new set of marker spans that
+ // cover the line in which the change took place. Removes spans
+ // entirely within the change, reconnects spans belonging to the
+ // same marker that appear on both sides of the change, and cuts off
+ // spans partially within the change. Returns an array of span
+ // arrays with one element for each line in (after) the change.
+ function stretchSpansOverChange(doc, change) {
+ if (change.full) return null;
+ var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
+ var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
+ if (!oldFirst && !oldLast) return null;
+
+ var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0;
+ // Get the spans that 'stick out' on both sides
+ var first = markedSpansBefore(oldFirst, startCh, isInsert);
+ var last = markedSpansAfter(oldLast, endCh, isInsert);
+
+ // Next, merge those two ends
+ var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
+ if (first) {
+ // Fix up .to properties of first
+ for (var i = 0; i < first.length; ++i) {
+ var span = first[i];
+ if (span.to == null) {
+ var found = getMarkedSpanFor(last, span.marker);
+ if (!found) span.to = startCh;
+ else if (sameLine) span.to = found.to == null ? null : found.to + offset;
+ }
+ }
+ }
+ if (last) {
+ // Fix up .from in last (or move them into first in case of sameLine)
+ for (var i = 0; i < last.length; ++i) {
+ var span = last[i];
+ if (span.to != null) span.to += offset;
+ if (span.from == null) {
+ var found = getMarkedSpanFor(first, span.marker);
+ if (!found) {
+ span.from = offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ } else {
+ span.from += offset;
+ if (sameLine) (first || (first = [])).push(span);
+ }
+ }
+ }
+ // Make sure we didn't create any zero-length spans
+ if (first) first = clearEmptySpans(first);
+ if (last && last != first) last = clearEmptySpans(last);
+
+ var newMarkers = [first];
+ if (!sameLine) {
+ // Fill gap with whole-line-spans
+ var gap = change.text.length - 2, gapMarkers;
+ if (gap > 0 && first)
+ for (var i = 0; i < first.length; ++i)
+ if (first[i].to == null)
+ (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null));
+ for (var i = 0; i < gap; ++i)
+ newMarkers.push(gapMarkers);
+ newMarkers.push(last);
+ }
+ return newMarkers;
+ }
+
+ // Remove spans that are empty and don't have a clearWhenEmpty
+ // option of false.
+ function clearEmptySpans(spans) {
+ for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+ spans.splice(i--, 1);
+ }
+ if (!spans.length) return null;
+ return spans;
+ }
+
+ // Used for un/re-doing changes from the history. Combines the
+ // result of computing the existing spans with the set of spans that
+ // existed in the history (so that deleting around a span and then
+ // undoing brings back the span).
+ function mergeOldSpans(doc, change) {
+ var old = getOldSpans(doc, change);
+ var stretched = stretchSpansOverChange(doc, change);
+ if (!old) return stretched;
+ if (!stretched) return old;
+
+ for (var i = 0; i < old.length; ++i) {
+ var oldCur = old[i], stretchCur = stretched[i];
+ if (oldCur && stretchCur) {
+ spans: for (var j = 0; j < stretchCur.length; ++j) {
+ var span = stretchCur[j];
+ for (var k = 0; k < oldCur.length; ++k)
+ if (oldCur[k].marker == span.marker) continue spans;
+ oldCur.push(span);
+ }
+ } else if (stretchCur) {
+ old[i] = stretchCur;
+ }
+ }
+ return old;
+ }
+
+ // Used to 'clip' out readOnly ranges when making a change.
+ function removeReadOnlyRanges(doc, from, to) {
+ var markers = null;
+ doc.iter(from.line, to.line + 1, function(line) {
+ if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
+ var mark = line.markedSpans[i].marker;
+ if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+ (markers || (markers = [])).push(mark);
+ }
+ });
+ if (!markers) return null;
+ var parts = [{from: from, to: to}];
+ for (var i = 0; i < markers.length; ++i) {
+ var mk = markers[i], m = mk.find(0);
+ for (var j = 0; j < parts.length; ++j) {
+ var p = parts[j];
+ if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue;
+ var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to);
+ if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+ newParts.push({from: p.from, to: m.from});
+ if (dto > 0 || !mk.inclusiveRight && !dto)
+ newParts.push({from: m.to, to: p.to});
+ parts.splice.apply(parts, newParts);
+ j += newParts.length - 1;
+ }
+ }
+ return parts;
+ }
+
+ // Connect or disconnect spans from a line.
+ function detachMarkedSpans(line) {
+ var spans = line.markedSpans;
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i)
+ spans[i].marker.detachLine(line);
+ line.markedSpans = null;
+ }
+ function attachMarkedSpans(line, spans) {
+ if (!spans) return;
+ for (var i = 0; i < spans.length; ++i)
+ spans[i].marker.attachLine(line);
+ line.markedSpans = spans;
+ }
+
+ // Helpers used when computing which overlapping collapsed span
+ // counts as the larger one.
+ function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0; }
+ function extraRight(marker) { return marker.inclusiveRight ? 1 : 0; }
+
+ // Returns a number indicating which of two overlapping collapsed
+ // spans is larger (and thus includes the other). Falls back to
+ // comparing ids when the spans cover exactly the same range.
+ function compareCollapsedMarkers(a, b) {
+ var lenDiff = a.lines.length - b.lines.length;
+ if (lenDiff != 0) return lenDiff;
+ var aPos = a.find(), bPos = b.find();
+ var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b);
+ if (fromCmp) return -fromCmp;
+ var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b);
+ if (toCmp) return toCmp;
+ return b.id - a.id;
+ }
+
+ // Find out whether a line ends or starts in a collapsed span. If
+ // so, return the marker for that span.
+ function collapsedSpanAtSide(line, start) {
+ var sps = sawCollapsedSpans && line.markedSpans, found;
+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+ (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+ found = sp.marker;
+ }
+ return found;
+ }
+ function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true); }
+ function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false); }
+
+ // Test whether there exists a collapsed span that partially
+ // overlaps (covers the start or end, but not both) of a new span.
+ // Such overlap is not allowed.
+ function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+ var line = getLine(doc, lineNo);
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps) for (var i = 0; i < sps.length; ++i) {
+ var sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ var found = sp.marker.find(0);
+ var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker);
+ var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker);
+ if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue;
+ if (fromCmp <= 0 && (cmp(found.to, from) > 0 || (sp.marker.inclusiveRight && marker.inclusiveLeft)) ||
+ fromCmp >= 0 && (cmp(found.from, to) < 0 || (sp.marker.inclusiveLeft && marker.inclusiveRight)))
+ return true;
+ }
+ }
+
+ // A visual line is a line as drawn on the screen. Folding, for
+ // example, can cause multiple logical lines to appear on the same
+ // visual line. This finds the start of the visual line that the
+ // given line is part of (usually that is the line itself).
+ function visualLine(line) {
+ var merged;
+ while (merged = collapsedSpanAtStart(line))
+ line = merged.find(-1, true).line;
+ return line;
+ }
+
+ // Returns an array of logical lines that continue the visual line
+ // started by the argument, or undefined if there are no such lines.
+ function visualLineContinued(line) {
+ var merged, lines;
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line;
+ (lines || (lines = [])).push(line);
+ }
+ return lines;
+ }
+
+ // Get the line number of the start of the visual line that the
+ // given line number is part of.
+ function visualLineNo(doc, lineN) {
+ var line = getLine(doc, lineN), vis = visualLine(line);
+ if (line == vis) return lineN;
+ return lineNo(vis);
+ }
+ // Get the line number of the start of the next visual line after
+ // the given line.
+ function visualLineEndNo(doc, lineN) {
+ if (lineN > doc.lastLine()) return lineN;
+ var line = getLine(doc, lineN), merged;
+ if (!lineIsHidden(doc, line)) return lineN;
+ while (merged = collapsedSpanAtEnd(line))
+ line = merged.find(1, true).line;
+ return lineNo(line) + 1;
+ }
+
+ // Compute whether a line is hidden. Lines count as hidden when they
+ // are part of a visual line that starts with another line, or when
+ // they are entirely covered by collapsed, non-widget span.
+ function lineIsHidden(doc, line) {
+ var sps = sawCollapsedSpans && line.markedSpans;
+ if (sps) for (var sp, i = 0; i < sps.length; ++i) {
+ sp = sps[i];
+ if (!sp.marker.collapsed) continue;
+ if (sp.from == null) return true;
+ if (sp.marker.widgetNode) continue;
+ if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+ return true;
+ }
+ }
+ function lineIsHiddenInner(doc, line, span) {
+ if (span.to == null) {
+ var end = span.marker.find(1, true);
+ return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker));
+ }
+ if (span.marker.inclusiveRight && span.to == line.text.length)
+ return true;
+ for (var sp, i = 0; i < line.markedSpans.length; ++i) {
+ sp = line.markedSpans[i];
+ if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+ (sp.to == null || sp.to != span.from) &&
+ (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+ lineIsHiddenInner(doc, line, sp)) return true;
+ }
+ }
+
+ // LINE WIDGETS
+
+ // Line widgets are block elements displayed above or below a line.
+
+ var LineWidget = CodeMirror.LineWidget = function(doc, node, options) {
+ if (options) for (var opt in options) if (options.hasOwnProperty(opt))
+ this[opt] = options[opt];
+ this.doc = doc;
+ this.node = node;
+ };
+ eventMixin(LineWidget);
+
+ function adjustScrollWhenAboveVisible(cm, line, diff) {
+ if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+ addToScrollPos(cm, null, diff);
+ }
+
+ LineWidget.prototype.clear = function() {
+ var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line);
+ if (no == null || !ws) return;
+ for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
+ if (!ws.length) line.widgets = null;
+ var height = widgetHeight(this);
+ updateLineHeight(line, Math.max(0, line.height - height));
+ if (cm) runInOp(cm, function() {
+ adjustScrollWhenAboveVisible(cm, line, -height);
+ regLineChange(cm, no, "widget");
+ });
+ };
+ LineWidget.prototype.changed = function() {
+ var oldH = this.height, cm = this.doc.cm, line = this.line;
+ this.height = null;
+ var diff = widgetHeight(this) - oldH;
+ if (!diff) return;
+ updateLineHeight(line, line.height + diff);
+ if (cm) runInOp(cm, function() {
+ cm.curOp.forceUpdate = true;
+ adjustScrollWhenAboveVisible(cm, line, diff);
+ });
+ };
+
+ function widgetHeight(widget) {
+ if (widget.height != null) return widget.height;
+ var cm = widget.doc.cm;
+ if (!cm) return 0;
+ if (!contains(document.body, widget.node)) {
+ var parentStyle = "position: relative;";
+ if (widget.coverGutter)
+ parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;";
+ if (widget.noHScroll)
+ parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;";
+ removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle));
+ }
+ return widget.height = widget.node.offsetHeight;
+ }
+
+ function addLineWidget(doc, handle, node, options) {
+ var widget = new LineWidget(doc, node, options);
+ var cm = doc.cm;
+ if (cm && widget.noHScroll) cm.display.alignWidgets = true;
+ changeLine(doc, handle, "widget", function(line) {
+ var widgets = line.widgets || (line.widgets = []);
+ if (widget.insertAt == null) widgets.push(widget);
+ else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget);
+ widget.line = line;
+ if (cm && !lineIsHidden(doc, line)) {
+ var aboveVisible = heightAtLine(line) < doc.scrollTop;
+ updateLineHeight(line, line.height + widgetHeight(widget));
+ if (aboveVisible) addToScrollPos(cm, null, widget.height);
+ cm.curOp.forceUpdate = true;
+ }
+ return true;
+ });
+ return widget;
+ }
+
+ // LINE DATA STRUCTURE
+
+ // Line objects. These hold state related to a line, including
+ // highlighting info (the styles array).
+ var Line = CodeMirror.Line = function(text, markedSpans, estimateHeight) {
+ this.text = text;
+ attachMarkedSpans(this, markedSpans);
+ this.height = estimateHeight ? estimateHeight(this) : 1;
+ };
+ eventMixin(Line);
+ Line.prototype.lineNo = function() { return lineNo(this); };
+
+ // Change the content (text, markers) of a line. Automatically
+ // invalidates cached information and tries to re-estimate the
+ // line's height.
+ function updateLine(line, text, markedSpans, estimateHeight) {
+ line.text = text;
+ if (line.stateAfter) line.stateAfter = null;
+ if (line.styles) line.styles = null;
+ if (line.order != null) line.order = null;
+ detachMarkedSpans(line);
+ attachMarkedSpans(line, markedSpans);
+ var estHeight = estimateHeight ? estimateHeight(line) : 1;
+ if (estHeight != line.height) updateLineHeight(line, estHeight);
+ }
+
+ // Detach a line from the document tree and its markers.
+ function cleanUpLine(line) {
+ line.parent = null;
+ detachMarkedSpans(line);
+ }
+
+ function extractLineClasses(type, output) {
+ if (type) for (;;) {
+ var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/);
+ if (!lineClass) break;
+ type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length);
+ var prop = lineClass[1] ? "bgClass" : "textClass";
+ if (output[prop] == null)
+ output[prop] = lineClass[2];
+ else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+ output[prop] += " " + lineClass[2];
+ }
+ return type;
+ }
+
+ function callBlankLine(mode, state) {
+ if (mode.blankLine) return mode.blankLine(state);
+ if (!mode.innerMode) return;
+ var inner = CodeMirror.innerMode(mode, state);
+ if (inner.mode.blankLine) return inner.mode.blankLine(inner.state);
+ }
+
+ function readToken(mode, stream, state, inner) {
+ for (var i = 0; i < 10; i++) {
+ if (inner) inner[0] = CodeMirror.innerMode(mode, state).mode;
+ var style = mode.token(stream, state);
+ if (stream.pos > stream.start) return style;
+ }
+ throw new Error("Mode " + mode.name + " failed to advance stream.");
+ }
+
+ // Utility for getTokenAt and getLineTokens
+ function takeToken(cm, pos, precise, asArray) {
+ function getObj(copy) {
+ return {start: stream.start, end: stream.pos,
+ string: stream.current(),
+ type: style || null,
+ state: copy ? copyState(doc.mode, state) : state};
+ }
+
+ var doc = cm.doc, mode = doc.mode, style;
+ pos = clipPos(doc, pos);
+ var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise);
+ var stream = new StringStream(line.text, cm.options.tabSize), tokens;
+ if (asArray) tokens = [];
+ while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+ stream.start = stream.pos;
+ style = readToken(mode, stream, state);
+ if (asArray) tokens.push(getObj(true));
+ }
+ return asArray ? tokens : getObj();
+ }
+
+ // Run the given mode's parser over a line, calling f for each token.
+ function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+ var flattenSpans = mode.flattenSpans;
+ if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
+ var curStart = 0, curStyle = null;
+ var stream = new StringStream(text, cm.options.tabSize), style;
+ var inner = cm.options.addModeClass && [null];
+ if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses);
+ while (!stream.eol()) {
+ if (stream.pos > cm.options.maxHighlightLength) {
+ flattenSpans = false;
+ if (forceToEnd) processLine(cm, text, state, stream.pos);
+ stream.pos = text.length;
+ style = null;
+ } else {
+ style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses);
+ }
+ if (inner) {
+ var mName = inner[0].name;
+ if (mName) style = "m-" + (style ? mName + " " + style : mName);
+ }
+ if (!flattenSpans || curStyle != style) {
+ while (curStart < stream.start) {
+ curStart = Math.min(stream.start, curStart + 50000);
+ f(curStart, curStyle);
+ }
+ curStyle = style;
+ }
+ stream.start = stream.pos;
+ }
+ while (curStart < stream.pos) {
+ // Webkit seems to refuse to render text nodes longer than 57444 characters
+ var pos = Math.min(stream.pos, curStart + 50000);
+ f(pos, curStyle);
+ curStart = pos;
+ }
+ }
+
+ // Compute a style array (an array starting with a mode generation
+ // -- for invalidation -- followed by pairs of end positions and
+ // style strings), which is used to highlight the tokens on the
+ // line.
+ function highlightLine(cm, line, state, forceToEnd) {
+ // A styles array always starts with a number identifying the
+ // mode/overlays that it is based on (for easy invalidation).
+ var st = [cm.state.modeGen], lineClasses = {};
+ // Compute the base array of styles
+ runMode(cm, line.text, cm.doc.mode, state, function(end, style) {
+ st.push(end, style);
+ }, lineClasses, forceToEnd);
+
+ // Run overlays, adjust style array.
+ for (var o = 0; o < cm.state.overlays.length; ++o) {
+ var overlay = cm.state.overlays[o], i = 1, at = 0;
+ runMode(cm, line.text, overlay.mode, true, function(end, style) {
+ var start = i;
+ // Ensure there's a token end at the current position, and that i points at it
+ while (at < end) {
+ var i_end = st[i];
+ if (i_end > end)
+ st.splice(i, 1, end, st[i+1], i_end);
+ i += 2;
+ at = Math.min(end, i_end);
+ }
+ if (!style) return;
+ if (overlay.opaque) {
+ st.splice(start, i - start, end, "cm-overlay " + style);
+ i = start + 2;
+ } else {
+ for (; start < i; start += 2) {
+ var cur = st[start+1];
+ st[start+1] = (cur ? cur + " " : "") + "cm-overlay " + style;
+ }
+ }
+ }, lineClasses);
+ }
+
+ return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null};
+ }
+
+ function getLineStyles(cm, line, updateFrontier) {
+ if (!line.styles || line.styles[0] != cm.state.modeGen) {
+ var state = getStateBefore(cm, lineNo(line));
+ var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state);
+ line.stateAfter = state;
+ line.styles = result.styles;
+ if (result.classes) line.styleClasses = result.classes;
+ else if (line.styleClasses) line.styleClasses = null;
+ if (updateFrontier === cm.doc.frontier) cm.doc.frontier++;
+ }
+ return line.styles;
+ }
+
+ // Lightweight form of highlight -- proceed over this line and
+ // update state, but don't save a style array. Used for lines that
+ // aren't currently visible.
+ function processLine(cm, text, state, startAt) {
+ var mode = cm.doc.mode;
+ var stream = new StringStream(text, cm.options.tabSize);
+ stream.start = stream.pos = startAt || 0;
+ if (text == "") callBlankLine(mode, state);
+ while (!stream.eol()) {
+ readToken(mode, stream, state);
+ stream.start = stream.pos;
+ }
+ }
+
+ // Convert a style as returned by a mode (either null, or a string
+ // containing one or more styles) to a CSS style. This is cached,
+ // and also looks for line-wide styles.
+ var styleToClassCache = {}, styleToClassCacheWithMode = {};
+ function interpretTokenStyle(style, options) {
+ if (!style || /^\s*$/.test(style)) return null;
+ var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache;
+ return cache[style] ||
+ (cache[style] = style.replace(/\S+/g, "cm-$&"));
+ }
+
+ // Render the DOM representation of the text of a line. Also builds
+ // up a 'line map', which points at the DOM nodes that represent
+ // specific stretches of text, and is used by the measuring code.
+ // The returned object contains the DOM node, this map, and
+ // information about line-wide styles that were set by the mode.
+ function buildLineContent(cm, lineView) {
+ // The padding-right forces the element to have a 'border', which
+ // is needed on Webkit to be able to get line-level bounding
+ // rectangles for it (in measureChar).
+ var content = elt("span", null, null, webkit ? "padding-right: .1px" : null);
+ var builder = {pre: elt("pre", [content], "CodeMirror-line"), content: content,
+ col: 0, pos: 0, cm: cm,
+ splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")};
+ lineView.measure = {};
+
+ // Iterate over the logical lines that make up this visual line.
+ for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+ var line = i ? lineView.rest[i - 1] : lineView.line, order;
+ builder.pos = 0;
+ builder.addToken = buildToken;
+ // Optionally wire in some hacks into the token-rendering
+ // algorithm, to deal with browser quirks.
+ if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line)))
+ builder.addToken = buildTokenBadBidi(builder.addToken, order);
+ builder.map = [];
+ var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line);
+ insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate));
+ if (line.styleClasses) {
+ if (line.styleClasses.bgClass)
+ builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "");
+ if (line.styleClasses.textClass)
+ builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "");
+ }
+
+ // Ensure at least a single node is present, for measuring.
+ if (builder.map.length == 0)
+ builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)));
+
+ // Store the map and a cache object for the current logical line
+ if (i == 0) {
+ lineView.measure.map = builder.map;
+ lineView.measure.cache = {};
+ } else {
+ (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map);
+ (lineView.measure.caches || (lineView.measure.caches = [])).push({});
+ }
+ }
+
+ // See issue #2901
+ if (webkit && /\bcm-tab\b/.test(builder.content.lastChild.className))
+ builder.content.className = "cm-tab-wrap-hack";
+
+ signal(cm, "renderLine", cm, lineView.line, builder.pre);
+ if (builder.pre.className)
+ builder.textClass = joinClasses(builder.pre.className, builder.textClass || "");
+
+ return builder;
+ }
+
+ function defaultSpecialCharPlaceholder(ch) {
+ var token = elt("span", "\u2022", "cm-invalidchar");
+ token.title = "\\u" + ch.charCodeAt(0).toString(16);
+ token.setAttribute("aria-label", token.title);
+ return token;
+ }
+
+ // Build up the DOM representation for a single token, and add it to
+ // the line map. Takes care to render special characters separately.
+ function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+ if (!text) return;
+ var displayText = builder.splitSpaces ? text.replace(/ {3,}/g, splitSpaces) : text;
+ var special = builder.cm.state.specialChars, mustWrap = false;
+ if (!special.test(text)) {
+ builder.col += text.length;
+ var content = document.createTextNode(displayText);
+ builder.map.push(builder.pos, builder.pos + text.length, content);
+ if (ie && ie_version < 9) mustWrap = true;
+ builder.pos += text.length;
+ } else {
+ var content = document.createDocumentFragment(), pos = 0;
+ while (true) {
+ special.lastIndex = pos;
+ var m = special.exec(text);
+ var skipped = m ? m.index - pos : text.length - pos;
+ if (skipped) {
+ var txt = document.createTextNode(displayText.slice(pos, pos + skipped));
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.map.push(builder.pos, builder.pos + skipped, txt);
+ builder.col += skipped;
+ builder.pos += skipped;
+ }
+ if (!m) break;
+ pos += skipped + 1;
+ if (m[0] == "\t") {
+ var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
+ var txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
+ txt.setAttribute("role", "presentation");
+ txt.setAttribute("cm-text", "\t");
+ builder.col += tabWidth;
+ } else if (m[0] == "\r" || m[0] == "\n") {
+ var txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"));
+ txt.setAttribute("cm-text", m[0]);
+ builder.col += 1;
+ } else {
+ var txt = builder.cm.options.specialCharPlaceholder(m[0]);
+ txt.setAttribute("cm-text", m[0]);
+ if (ie && ie_version < 9) content.appendChild(elt("span", [txt]));
+ else content.appendChild(txt);
+ builder.col += 1;
+ }
+ builder.map.push(builder.pos, builder.pos + 1, txt);
+ builder.pos++;
+ }
+ }
+ if (style || startStyle || endStyle || mustWrap || css) {
+ var fullStyle = style || "";
+ if (startStyle) fullStyle += startStyle;
+ if (endStyle) fullStyle += endStyle;
+ var token = elt("span", [content], fullStyle, css);
+ if (title) token.title = title;
+ return builder.content.appendChild(token);
+ }
+ builder.content.appendChild(content);
+ }
+
+ function splitSpaces(old) {
+ var out = " ";
+ for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
+ out += " ";
+ return out;
+ }
+
+ // Work around nonsense dimensions being reported for stretches of
+ // right-to-left text.
+ function buildTokenBadBidi(inner, order) {
+ return function(builder, text, style, startStyle, endStyle, title, css) {
+ style = style ? style + " cm-force-border" : "cm-force-border";
+ var start = builder.pos, end = start + text.length;
+ for (;;) {
+ // Find the part that overlaps with the start of this text
+ for (var i = 0; i < order.length; i++) {
+ var part = order[i];
+ if (part.to > start && part.from <= start) break;
+ }
+ if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css);
+ inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css);
+ startStyle = null;
+ text = text.slice(part.to - start);
+ start = part.to;
+ }
+ };
+ }
+
+ function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+ var widget = !ignoreWidget && marker.widgetNode;
+ if (widget) builder.map.push(builder.pos, builder.pos + size, widget);
+ if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+ if (!widget)
+ widget = builder.content.appendChild(document.createElement("span"));
+ widget.setAttribute("cm-marker", marker.id);
+ }
+ if (widget) {
+ builder.cm.display.input.setUneditable(widget);
+ builder.content.appendChild(widget);
+ }
+ builder.pos += size;
+ }
+
+ // Outputs a number of spans to make up a line, taking highlighting
+ // and marked text into account.
+ function insertLineContent(line, builder, styles) {
+ var spans = line.markedSpans, allText = line.text, at = 0;
+ if (!spans) {
+ for (var i = 1; i < styles.length; i+=2)
+ builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options));
+ return;
+ }
+
+ var len = allText.length, pos = 0, i = 1, text = "", style, css;
+ var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed;
+ for (;;) {
+ if (nextChange == pos) { // Update current marker set
+ spanStyle = spanEndStyle = spanStartStyle = title = css = "";
+ collapsed = null; nextChange = Infinity;
+ var foundBookmarks = [];
+ for (var j = 0; j < spans.length; ++j) {
+ var sp = spans[j], m = sp.marker;
+ if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+ foundBookmarks.push(m);
+ } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+ if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+ nextChange = sp.to;
+ spanEndStyle = "";
+ }
+ if (m.className) spanStyle += " " + m.className;
+ if (m.css) css = m.css;
+ if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
+ if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
+ if (m.title && !title) title = m.title;
+ if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+ collapsed = sp;
+ } else if (sp.from > pos && nextChange > sp.from) {
+ nextChange = sp.from;
+ }
+ }
+ if (collapsed && (collapsed.from || 0) == pos) {
+ buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+ collapsed.marker, collapsed.from == null);
+ if (collapsed.to == null) return;
+ if (collapsed.to == pos) collapsed = false;
+ }
+ if (!collapsed && foundBookmarks.length) for (var j = 0; j < foundBookmarks.length; ++j)
+ buildCollapsedSpan(builder, 0, foundBookmarks[j]);
+ }
+ if (pos >= len) break;
+
+ var upto = Math.min(len, nextChange);
+ while (true) {
+ if (text) {
+ var end = pos + text.length;
+ if (!collapsed) {
+ var tokenText = end > upto ? text.slice(0, upto - pos) : text;
+ builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+ spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css);
+ }
+ if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
+ pos = end;
+ spanStartStyle = "";
+ }
+ text = allText.slice(at, at = styles[i++]);
+ style = interpretTokenStyle(styles[i++], builder.cm.options);
+ }
+ }
+ }
+
+ // DOCUMENT DATA STRUCTURE
+
+ // By default, updates that start and end at the beginning of a line
+ // are treated specially, in order to make the association of line
+ // widgets and marker elements with the text behave more intuitive.
+ function isWholeLineUpdate(doc, change) {
+ return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+ (!doc.cm || doc.cm.options.wholeLineUpdateBefore);
+ }
+
+ // Perform a change on the document data structure.
+ function updateDoc(doc, change, markedSpans, estimateHeight) {
+ function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
+ function update(line, text, spans) {
+ updateLine(line, text, spans, estimateHeight);
+ signalLater(line, "change", line, change);
+ }
+ function linesFor(start, end) {
+ for (var i = start, result = []; i < end; ++i)
+ result.push(new Line(text[i], spansFor(i), estimateHeight));
+ return result;
+ }
+
+ var from = change.from, to = change.to, text = change.text;
+ var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
+ var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
+
+ // Adjust the line structure
+ if (change.full) {
+ doc.insert(0, linesFor(0, text.length));
+ doc.remove(text.length, doc.size - text.length);
+ } else if (isWholeLineUpdate(doc, change)) {
+ // This is a whole-line replace. Treated specially to make
+ // sure line objects move the way they are supposed to.
+ var added = linesFor(0, text.length - 1);
+ update(lastLine, lastLine.text, lastSpans);
+ if (nlines) doc.remove(from.line, nlines);
+ if (added.length) doc.insert(from.line, added);
+ } else if (firstLine == lastLine) {
+ if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
+ } else {
+ var added = linesFor(1, text.length - 1);
+ added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+ doc.insert(from.line + 1, added);
+ }
+ } else if (text.length == 1) {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
+ doc.remove(from.line + 1, nlines);
+ } else {
+ update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
+ update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
+ var added = linesFor(1, text.length - 1);
+ if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
+ doc.insert(from.line + 1, added);
+ }
+
+ signalLater(doc, "change", doc, change);
+ }
+
+ // The document is represented as a BTree consisting of leaves, with
+ // chunk of lines in them, and branches, with up to ten leaves or
+ // other branch nodes below them. The top node is always a branch
+ // node, and is the document object itself (meaning it has
+ // additional methods and properties).
+ //
+ // All nodes have parent links. The tree is used both to go from
+ // line numbers to line objects, and to go from objects to numbers.
+ // It also indexes by height, and is used to convert between height
+ // and line object, and to find the total height of the document.
+ //
+ // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+ function LeafChunk(lines) {
+ this.lines = lines;
+ this.parent = null;
+ for (var i = 0, height = 0; i < lines.length; ++i) {
+ lines[i].parent = this;
+ height += lines[i].height;
+ }
+ this.height = height;
+ }
+
+ LeafChunk.prototype = {
+ chunkSize: function() { return this.lines.length; },
+ // Remove the n lines at offset 'at'.
+ removeInner: function(at, n) {
+ for (var i = at, e = at + n; i < e; ++i) {
+ var line = this.lines[i];
+ this.height -= line.height;
+ cleanUpLine(line);
+ signalLater(line, "delete");
+ }
+ this.lines.splice(at, n);
+ },
+ // Helper used to collapse a small branch into a single leaf.
+ collapse: function(lines) {
+ lines.push.apply(lines, this.lines);
+ },
+ // Insert the given array of lines at offset 'at', count them as
+ // having the given height.
+ insertInner: function(at, lines, height) {
+ this.height += height;
+ this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
+ for (var i = 0; i < lines.length; ++i) lines[i].parent = this;
+ },
+ // Used to iterate over a part of the tree.
+ iterN: function(at, n, op) {
+ for (var e = at + n; at < e; ++at)
+ if (op(this.lines[at])) return true;
+ }
+ };
+
+ function BranchChunk(children) {
+ this.children = children;
+ var size = 0, height = 0;
+ for (var i = 0; i < children.length; ++i) {
+ var ch = children[i];
+ size += ch.chunkSize(); height += ch.height;
+ ch.parent = this;
+ }
+ this.size = size;
+ this.height = height;
+ this.parent = null;
+ }
+
+ BranchChunk.prototype = {
+ chunkSize: function() { return this.size; },
+ removeInner: function(at, n) {
+ this.size -= n;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var rm = Math.min(n, sz - at), oldHeight = child.height;
+ child.removeInner(at, rm);
+ this.height -= oldHeight - child.height;
+ if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
+ if ((n -= rm) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ // If the result is smaller than 25 lines, ensure that it is a
+ // single leaf node.
+ if (this.size - n < 25 &&
+ (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+ var lines = [];
+ this.collapse(lines);
+ this.children = [new LeafChunk(lines)];
+ this.children[0].parent = this;
+ }
+ },
+ collapse: function(lines) {
+ for (var i = 0; i < this.children.length; ++i) this.children[i].collapse(lines);
+ },
+ insertInner: function(at, lines, height) {
+ this.size += lines.length;
+ this.height += height;
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at <= sz) {
+ child.insertInner(at, lines, height);
+ if (child.lines && child.lines.length > 50) {
+ while (child.lines.length > 50) {
+ var spilled = child.lines.splice(child.lines.length - 25, 25);
+ var newleaf = new LeafChunk(spilled);
+ child.height -= newleaf.height;
+ this.children.splice(i + 1, 0, newleaf);
+ newleaf.parent = this;
+ }
+ this.maybeSpill();
+ }
+ break;
+ }
+ at -= sz;
+ }
+ },
+ // When a node has grown, check whether it should be split.
+ maybeSpill: function() {
+ if (this.children.length <= 10) return;
+ var me = this;
+ do {
+ var spilled = me.children.splice(me.children.length - 5, 5);
+ var sibling = new BranchChunk(spilled);
+ if (!me.parent) { // Become the parent node
+ var copy = new BranchChunk(me.children);
+ copy.parent = me;
+ me.children = [copy, sibling];
+ me = copy;
+ } else {
+ me.size -= sibling.size;
+ me.height -= sibling.height;
+ var myIndex = indexOf(me.parent.children, me);
+ me.parent.children.splice(myIndex + 1, 0, sibling);
+ }
+ sibling.parent = me.parent;
+ } while (me.children.length > 10);
+ me.parent.maybeSpill();
+ },
+ iterN: function(at, n, op) {
+ for (var i = 0; i < this.children.length; ++i) {
+ var child = this.children[i], sz = child.chunkSize();
+ if (at < sz) {
+ var used = Math.min(n, sz - at);
+ if (child.iterN(at, used, op)) return true;
+ if ((n -= used) == 0) break;
+ at = 0;
+ } else at -= sz;
+ }
+ }
+ };
+
+ var nextDocId = 0;
+ var Doc = CodeMirror.Doc = function(text, mode, firstLine, lineSep) {
+ if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep);
+ if (firstLine == null) firstLine = 0;
+
+ BranchChunk.call(this, [new LeafChunk([new Line("", null)])]);
+ this.first = firstLine;
+ this.scrollTop = this.scrollLeft = 0;
+ this.cantEdit = false;
+ this.cleanGeneration = 1;
+ this.frontier = firstLine;
+ var start = Pos(firstLine, 0);
+ this.sel = simpleSelection(start);
+ this.history = new History(null);
+ this.id = ++nextDocId;
+ this.modeOption = mode;
+ this.lineSep = lineSep;
+
+ if (typeof text == "string") text = this.splitLines(text);
+ updateDoc(this, {from: start, to: start, text: text});
+ setSelection(this, simpleSelection(start), sel_dontScroll);
+ };
+
+ Doc.prototype = createObj(BranchChunk.prototype, {
+ constructor: Doc,
+ // Iterate over the document. Supports two forms -- with only one
+ // argument, it calls that for each line in the document. With
+ // three, it iterates over the range given by the first two (with
+ // the second being non-inclusive).
+ iter: function(from, to, op) {
+ if (op) this.iterN(from - this.first, to - from, op);
+ else this.iterN(this.first, this.first + this.size, from);
+ },
+
+ // Non-public interface for adding and removing lines.
+ insert: function(at, lines) {
+ var height = 0;
+ for (var i = 0; i < lines.length; ++i) height += lines[i].height;
+ this.insertInner(at - this.first, lines, height);
+ },
+ remove: function(at, n) { this.removeInner(at - this.first, n); },
+
+ // From here, the methods are part of the public interface. Most
+ // are also available from CodeMirror (editor) instances.
+
+ getValue: function(lineSep) {
+ var lines = getLines(this, this.first, this.first + this.size);
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+ setValue: docMethodOp(function(code) {
+ var top = Pos(this.first, 0), last = this.first + this.size - 1;
+ makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+ text: this.splitLines(code), origin: "setValue", full: true}, true);
+ setSelection(this, simpleSelection(top));
+ }),
+ replaceRange: function(code, from, to, origin) {
+ from = clipPos(this, from);
+ to = to ? clipPos(this, to) : from;
+ replaceRange(this, code, from, to, origin);
+ },
+ getRange: function(from, to, lineSep) {
+ var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
+ if (lineSep === false) return lines;
+ return lines.join(lineSep || this.lineSeparator());
+ },
+
+ getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
+
+ getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
+ getLineNumber: function(line) {return lineNo(line);},
+
+ getLineHandleVisualStart: function(line) {
+ if (typeof line == "number") line = getLine(this, line);
+ return visualLine(line);
+ },
+
+ lineCount: function() {return this.size;},
+ firstLine: function() {return this.first;},
+ lastLine: function() {return this.first + this.size - 1;},
+
+ clipPos: function(pos) {return clipPos(this, pos);},
+
+ getCursor: function(start) {
+ var range = this.sel.primary(), pos;
+ if (start == null || start == "head") pos = range.head;
+ else if (start == "anchor") pos = range.anchor;
+ else if (start == "end" || start == "to" || start === false) pos = range.to();
+ else pos = range.from();
+ return pos;
+ },
+ listSelections: function() { return this.sel.ranges; },
+ somethingSelected: function() {return this.sel.somethingSelected();},
+
+ setCursor: docMethodOp(function(line, ch, options) {
+ setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options);
+ }),
+ setSelection: docMethodOp(function(anchor, head, options) {
+ setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options);
+ }),
+ extendSelection: docMethodOp(function(head, other, options) {
+ extendSelection(this, clipPos(this, head), other && clipPos(this, other), options);
+ }),
+ extendSelections: docMethodOp(function(heads, options) {
+ extendSelections(this, clipPosArray(this, heads, options));
+ }),
+ extendSelectionsBy: docMethodOp(function(f, options) {
+ extendSelections(this, map(this.sel.ranges, f), options);
+ }),
+ setSelections: docMethodOp(function(ranges, primary, options) {
+ if (!ranges.length) return;
+ for (var i = 0, out = []; i < ranges.length; i++)
+ out[i] = new Range(clipPos(this, ranges[i].anchor),
+ clipPos(this, ranges[i].head));
+ if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex);
+ setSelection(this, normalizeSelection(out, primary), options);
+ }),
+ addSelection: docMethodOp(function(anchor, head, options) {
+ var ranges = this.sel.ranges.slice(0);
+ ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)));
+ setSelection(this, normalizeSelection(ranges, ranges.length - 1), options);
+ }),
+
+ getSelection: function(lineSep) {
+ var ranges = this.sel.ranges, lines;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ lines = lines ? lines.concat(sel) : sel;
+ }
+ if (lineSep === false) return lines;
+ else return lines.join(lineSep || this.lineSeparator());
+ },
+ getSelections: function(lineSep) {
+ var parts = [], ranges = this.sel.ranges;
+ for (var i = 0; i < ranges.length; i++) {
+ var sel = getBetween(this, ranges[i].from(), ranges[i].to());
+ if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator());
+ parts[i] = sel;
+ }
+ return parts;
+ },
+ replaceSelection: function(code, collapse, origin) {
+ var dup = [];
+ for (var i = 0; i < this.sel.ranges.length; i++)
+ dup[i] = code;
+ this.replaceSelections(dup, collapse, origin || "+input");
+ },
+ replaceSelections: docMethodOp(function(code, collapse, origin) {
+ var changes = [], sel = this.sel;
+ for (var i = 0; i < sel.ranges.length; i++) {
+ var range = sel.ranges[i];
+ changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin};
+ }
+ var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse);
+ for (var i = changes.length - 1; i >= 0; i--)
+ makeChange(this, changes[i]);
+ if (newSel) setSelectionReplaceHistory(this, newSel);
+ else if (this.cm) ensureCursorVisible(this.cm);
+ }),
+ undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}),
+ redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}),
+ undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}),
+ redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}),
+
+ setExtending: function(val) {this.extend = val;},
+ getExtending: function() {return this.extend;},
+
+ historySize: function() {
+ var hist = this.history, done = 0, undone = 0;
+ for (var i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done;
+ for (var i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone;
+ return {undo: done, redo: undone};
+ },
+ clearHistory: function() {this.history = new History(this.history.maxGeneration);},
+
+ markClean: function() {
+ this.cleanGeneration = this.changeGeneration(true);
+ },
+ changeGeneration: function(forceSplit) {
+ if (forceSplit)
+ this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null;
+ return this.history.generation;
+ },
+ isClean: function (gen) {
+ return this.history.generation == (gen || this.cleanGeneration);
+ },
+
+ getHistory: function() {
+ return {done: copyHistoryArray(this.history.done),
+ undone: copyHistoryArray(this.history.undone)};
+ },
+ setHistory: function(histData) {
+ var hist = this.history = new History(this.history.maxGeneration);
+ hist.done = copyHistoryArray(histData.done.slice(0), null, true);
+ hist.undone = copyHistoryArray(histData.undone.slice(0), null, true);
+ },
+
+ addLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass";
+ if (!line[prop]) line[prop] = cls;
+ else if (classTest(cls).test(line[prop])) return false;
+ else line[prop] += " " + cls;
+ return true;
+ });
+ }),
+ removeLineClass: docMethodOp(function(handle, where, cls) {
+ return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function(line) {
+ var prop = where == "text" ? "textClass"
+ : where == "background" ? "bgClass"
+ : where == "gutter" ? "gutterClass" : "wrapClass";
+ var cur = line[prop];
+ if (!cur) return false;
+ else if (cls == null) line[prop] = null;
+ else {
+ var found = cur.match(classTest(cls));
+ if (!found) return false;
+ var end = found.index + found[0].length;
+ line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
+ }
+ return true;
+ });
+ }),
+
+ addLineWidget: docMethodOp(function(handle, node, options) {
+ return addLineWidget(this, handle, node, options);
+ }),
+ removeLineWidget: function(widget) { widget.clear(); },
+
+ markText: function(from, to, options) {
+ return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
+ },
+ setBookmark: function(pos, options) {
+ var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+ insertLeft: options && options.insertLeft,
+ clearWhenEmpty: false, shared: options && options.shared,
+ handleMouseEvents: options && options.handleMouseEvents};
+ pos = clipPos(this, pos);
+ return markText(this, pos, pos, realOpts, "bookmark");
+ },
+ findMarksAt: function(pos) {
+ pos = clipPos(this, pos);
+ var markers = [], spans = getLine(this, pos.line).markedSpans;
+ if (spans) for (var i = 0; i < spans.length; ++i) {
+ var span = spans[i];
+ if ((span.from == null || span.from <= pos.ch) &&
+ (span.to == null || span.to >= pos.ch))
+ markers.push(span.marker.parent || span.marker);
+ }
+ return markers;
+ },
+ findMarks: function(from, to, filter) {
+ from = clipPos(this, from); to = clipPos(this, to);
+ var found = [], lineNo = from.line;
+ this.iter(from.line, to.line + 1, function(line) {
+ var spans = line.markedSpans;
+ if (spans) for (var i = 0; i < spans.length; i++) {
+ var span = spans[i];
+ if (!(lineNo == from.line && from.ch > span.to ||
+ span.from == null && lineNo != from.line||
+ lineNo == to.line && span.from > to.ch) &&
+ (!filter || filter(span.marker)))
+ found.push(span.marker.parent || span.marker);
+ }
+ ++lineNo;
+ });
+ return found;
+ },
+ getAllMarks: function() {
+ var markers = [];
+ this.iter(function(line) {
+ var sps = line.markedSpans;
+ if (sps) for (var i = 0; i < sps.length; ++i)
+ if (sps[i].from != null) markers.push(sps[i].marker);
+ });
+ return markers;
+ },
+
+ posFromIndex: function(off) {
+ var ch, lineNo = this.first;
+ this.iter(function(line) {
+ var sz = line.text.length + 1;
+ if (sz > off) { ch = off; return true; }
+ off -= sz;
+ ++lineNo;
+ });
+ return clipPos(this, Pos(lineNo, ch));
+ },
+ indexFromPos: function (coords) {
+ coords = clipPos(this, coords);
+ var index = coords.ch;
+ if (coords.line < this.first || coords.ch < 0) return 0;
+ this.iter(this.first, coords.line, function (line) {
+ index += line.text.length + 1;
+ });
+ return index;
+ },
+
+ copy: function(copyHistory) {
+ var doc = new Doc(getLines(this, this.first, this.first + this.size),
+ this.modeOption, this.first, this.lineSep);
+ doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
+ doc.sel = this.sel;
+ doc.extend = false;
+ if (copyHistory) {
+ doc.history.undoDepth = this.history.undoDepth;
+ doc.setHistory(this.getHistory());
+ }
+ return doc;
+ },
+
+ linkedDoc: function(options) {
+ if (!options) options = {};
+ var from = this.first, to = this.first + this.size;
+ if (options.from != null && options.from > from) from = options.from;
+ if (options.to != null && options.to < to) to = options.to;
+ var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep);
+ if (options.sharedHist) copy.history = this.history;
+ (this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
+ copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
+ copySharedMarkers(copy, findSharedMarkers(this));
+ return copy;
+ },
+ unlinkDoc: function(other) {
+ if (other instanceof CodeMirror) other = other.doc;
+ if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
+ var link = this.linked[i];
+ if (link.doc != other) continue;
+ this.linked.splice(i, 1);
+ other.unlinkDoc(this);
+ detachSharedMarkers(findSharedMarkers(this));
+ break;
+ }
+ // If the histories were shared, split them again
+ if (other.history == this.history) {
+ var splitIds = [other.id];
+ linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
+ other.history = new History(null);
+ other.history.done = copyHistoryArray(this.history.done, splitIds);
+ other.history.undone = copyHistoryArray(this.history.undone, splitIds);
+ }
+ },
+ iterLinkedDocs: function(f) {linkedDocs(this, f);},
+
+ getMode: function() {return this.mode;},
+ getEditor: function() {return this.cm;},
+
+ splitLines: function(str) {
+ if (this.lineSep) return str.split(this.lineSep);
+ return splitLinesAuto(str);
+ },
+ lineSeparator: function() { return this.lineSep || "\n"; }
+ });
+
+ // Public alias.
+ Doc.prototype.eachLine = Doc.prototype.iter;
+
+ // Set up methods on CodeMirror's prototype to redirect to the editor's document.
+ var dontDelegate = "iter insert remove copy getEditor constructor".split(" ");
+ for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+ CodeMirror.prototype[prop] = (function(method) {
+ return function() {return method.apply(this.doc, arguments);};
+ })(Doc.prototype[prop]);
+
+ eventMixin(Doc);
+
+ // Call f for all linked documents.
+ function linkedDocs(doc, f, sharedHistOnly) {
+ function propagate(doc, skip, sharedHist) {
+ if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
+ var rel = doc.linked[i];
+ if (rel.doc == skip) continue;
+ var shared = sharedHist && rel.sharedHist;
+ if (sharedHistOnly && !shared) continue;
+ f(rel.doc, shared);
+ propagate(rel.doc, doc, shared);
+ }
+ }
+ propagate(doc, null, true);
+ }
+
+ // Attach a document to an editor.
+ function attachDoc(cm, doc) {
+ if (doc.cm) throw new Error("This document is already in use.");
+ cm.doc = doc;
+ doc.cm = cm;
+ estimateLineHeights(cm);
+ loadMode(cm);
+ if (!cm.options.lineWrapping) findMaxLine(cm);
+ cm.options.mode = doc.modeOption;
+ regChange(cm);
+ }
+
+ // LINE UTILITIES
+
+ // Find the line object corresponding to the given line number.
+ function getLine(doc, n) {
+ n -= doc.first;
+ if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.");
+ for (var chunk = doc; !chunk.lines;) {
+ for (var i = 0;; ++i) {
+ var child = chunk.children[i], sz = child.chunkSize();
+ if (n < sz) { chunk = child; break; }
+ n -= sz;
+ }
+ }
+ return chunk.lines[n];
+ }
+
+ // Get the part of a document between two positions, as an array of
+ // strings.
+ function getBetween(doc, start, end) {
+ var out = [], n = start.line;
+ doc.iter(start.line, end.line + 1, function(line) {
+ var text = line.text;
+ if (n == end.line) text = text.slice(0, end.ch);
+ if (n == start.line) text = text.slice(start.ch);
+ out.push(text);
+ ++n;
+ });
+ return out;
+ }
+ // Get the lines between from and to, as array of strings.
+ function getLines(doc, from, to) {
+ var out = [];
+ doc.iter(from, to, function(line) { out.push(line.text); });
+ return out;
+ }
+
+ // Update the height of a line, propagating the height change
+ // upwards to parent nodes.
+ function updateLineHeight(line, height) {
+ var diff = height - line.height;
+ if (diff) for (var n = line; n; n = n.parent) n.height += diff;
+ }
+
+ // Given a line object, find its line number by walking up through
+ // its parent links.
+ function lineNo(line) {
+ if (line.parent == null) return null;
+ var cur = line.parent, no = indexOf(cur.lines, line);
+ for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+ for (var i = 0;; ++i) {
+ if (chunk.children[i] == cur) break;
+ no += chunk.children[i].chunkSize();
+ }
+ }
+ return no + cur.first;
+ }
+
+ // Find the line at the given vertical position, using the height
+ // information in the document tree.
+ function lineAtHeight(chunk, h) {
+ var n = chunk.first;
+ outer: do {
+ for (var i = 0; i < chunk.children.length; ++i) {
+ var child = chunk.children[i], ch = child.height;
+ if (h < ch) { chunk = child; continue outer; }
+ h -= ch;
+ n += child.chunkSize();
+ }
+ return n;
+ } while (!chunk.lines);
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i], lh = line.height;
+ if (h < lh) break;
+ h -= lh;
+ }
+ return n + i;
+ }
+
+
+ // Find the height above the given line.
+ function heightAtLine(lineObj) {
+ lineObj = visualLine(lineObj);
+
+ var h = 0, chunk = lineObj.parent;
+ for (var i = 0; i < chunk.lines.length; ++i) {
+ var line = chunk.lines[i];
+ if (line == lineObj) break;
+ else h += line.height;
+ }
+ for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+ for (var i = 0; i < p.children.length; ++i) {
+ var cur = p.children[i];
+ if (cur == chunk) break;
+ else h += cur.height;
+ }
+ }
+ return h;
+ }
+
+ // Get the bidi ordering for the given line (and cache it). Returns
+ // false for lines that are fully left-to-right, and an array of
+ // BidiSpan objects otherwise.
+ function getOrder(line) {
+ var order = line.order;
+ if (order == null) order = line.order = bidiOrdering(line.text);
+ return order;
+ }
+
+ // HISTORY
+
+ function History(startGen) {
+ // Arrays of change events and selections. Doing something adds an
+ // event to done and clears undo. Undoing moves events from done
+ // to undone, redoing moves them in the other direction.
+ this.done = []; this.undone = [];
+ this.undoDepth = Infinity;
+ // Used to track when changes can be merged into a single undo
+ // event
+ this.lastModTime = this.lastSelTime = 0;
+ this.lastOp = this.lastSelOp = null;
+ this.lastOrigin = this.lastSelOrigin = null;
+ // Used by the isClean() method
+ this.generation = this.maxGeneration = startGen || 1;
+ }
+
+ // Create a history change event from an updateDoc-style change
+ // object.
+ function historyChangeFromChange(doc, change) {
+ var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
+ attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
+ linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
+ return histChange;
+ }
+
+ // Pop all selection events off the end of a history array. Stop at
+ // a change event.
+ function clearSelectionEvents(array) {
+ while (array.length) {
+ var last = lst(array);
+ if (last.ranges) array.pop();
+ else break;
+ }
+ }
+
+ // Find the top change event in the history. Pop off selection
+ // events that are in the way.
+ function lastChangeEvent(hist, force) {
+ if (force) {
+ clearSelectionEvents(hist.done);
+ return lst(hist.done);
+ } else if (hist.done.length && !lst(hist.done).ranges) {
+ return lst(hist.done);
+ } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+ hist.done.pop();
+ return lst(hist.done);
+ }
+ }
+
+ // Register a change in the history. Merges changes that are within
+ // a single operation, ore are close together with an origin that
+ // allows merging (starting with "+") into a single event.
+ function addChangeToHistory(doc, change, selAfter, opId) {
+ var hist = doc.history;
+ hist.undone.length = 0;
+ var time = +new Date, cur;
+
+ if ((hist.lastOp == opId ||
+ hist.lastOrigin == change.origin && change.origin &&
+ ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+ change.origin.charAt(0) == "*")) &&
+ (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+ // Merge this change into the last event
+ var last = lst(cur.changes);
+ if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+ // Optimized case for simple insertion -- don't want to add
+ // new changesets for every character typed
+ last.to = changeEnd(change);
+ } else {
+ // Add new sub-event
+ cur.changes.push(historyChangeFromChange(doc, change));
+ }
+ } else {
+ // Can not be merged, start a new event.
+ var before = lst(hist.done);
+ if (!before || !before.ranges)
+ pushSelectionToHistory(doc.sel, hist.done);
+ cur = {changes: [historyChangeFromChange(doc, change)],
+ generation: hist.generation};
+ hist.done.push(cur);
+ while (hist.done.length > hist.undoDepth) {
+ hist.done.shift();
+ if (!hist.done[0].ranges) hist.done.shift();
+ }
+ }
+ hist.done.push(selAfter);
+ hist.generation = ++hist.maxGeneration;
+ hist.lastModTime = hist.lastSelTime = time;
+ hist.lastOp = hist.lastSelOp = opId;
+ hist.lastOrigin = hist.lastSelOrigin = change.origin;
+
+ if (!last) signal(doc, "historyAdded");
+ }
+
+ function selectionEventCanBeMerged(doc, origin, prev, sel) {
+ var ch = origin.charAt(0);
+ return ch == "*" ||
+ ch == "+" &&
+ prev.ranges.length == sel.ranges.length &&
+ prev.somethingSelected() == sel.somethingSelected() &&
+ new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500);
+ }
+
+ // Called whenever the selection changes, sets the new selection as
+ // the pending selection in the history, and pushes the old pending
+ // selection into the 'done' array when it was significantly
+ // different (in number of selected ranges, emptiness, or time).
+ function addSelectionToHistory(doc, sel, opId, options) {
+ var hist = doc.history, origin = options && options.origin;
+
+ // A new event is started when the previous origin does not match
+ // the current, or the origins don't allow matching. Origins
+ // starting with * are always merged, those starting with + are
+ // merged when similar and close together in time.
+ if (opId == hist.lastSelOp ||
+ (origin && hist.lastSelOrigin == origin &&
+ (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+ selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+ hist.done[hist.done.length - 1] = sel;
+ else
+ pushSelectionToHistory(sel, hist.done);
+
+ hist.lastSelTime = +new Date;
+ hist.lastSelOrigin = origin;
+ hist.lastSelOp = opId;
+ if (options && options.clearRedo !== false)
+ clearSelectionEvents(hist.undone);
+ }
+
+ function pushSelectionToHistory(sel, dest) {
+ var top = lst(dest);
+ if (!(top && top.ranges && top.equals(sel)))
+ dest.push(sel);
+ }
+
+ // Used to store marked span information in the history.
+ function attachLocalSpans(doc, change, from, to) {
+ var existing = change["spans_" + doc.id], n = 0;
+ doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
+ if (line.markedSpans)
+ (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
+ ++n;
+ });
+ }
+
+ // When un/re-doing restores text containing marked spans, those
+ // that have been explicitly cleared should not be restored.
+ function removeClearedSpans(spans) {
+ if (!spans) return null;
+ for (var i = 0, out; i < spans.length; ++i) {
+ if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
+ else if (out) out.push(spans[i]);
+ }
+ return !out ? spans : out.length ? out : null;
+ }
+
+ // Retrieve and filter the old marked spans stored in a change event.
+ function getOldSpans(doc, change) {
+ var found = change["spans_" + doc.id];
+ if (!found) return null;
+ for (var i = 0, nw = []; i < change.text.length; ++i)
+ nw.push(removeClearedSpans(found[i]));
+ return nw;
+ }
+
+ // Used both to provide a JSON-safe object in .getHistory, and, when
+ // detaching a document, to split the history in two
+ function copyHistoryArray(events, newGroup, instantiateSel) {
+ for (var i = 0, copy = []; i < events.length; ++i) {
+ var event = events[i];
+ if (event.ranges) {
+ copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event);
+ continue;
+ }
+ var changes = event.changes, newChanges = [];
+ copy.push({changes: newChanges});
+ for (var j = 0; j < changes.length; ++j) {
+ var change = changes[j], m;
+ newChanges.push({from: change.from, to: change.to, text: change.text});
+ if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
+ if (indexOf(newGroup, Number(m[1])) > -1) {
+ lst(newChanges)[prop] = change[prop];
+ delete change[prop];
+ }
+ }
+ }
+ }
+ return copy;
+ }
+
+ // Rebasing/resetting history to deal with externally-sourced changes
+
+ function rebaseHistSelSingle(pos, from, to, diff) {
+ if (to < pos.line) {
+ pos.line += diff;
+ } else if (from < pos.line) {
+ pos.line = from;
+ pos.ch = 0;
+ }
+ }
+
+ // Tries to rebase an array of history events given a change in the
+ // document. If the change touches the same lines as the event, the
+ // event, and everything 'behind' it, is discarded. If the change is
+ // before the event, the event's positions are updated. Uses a
+ // copy-on-write scheme for the positions, to avoid having to
+ // reallocate them all on every rebase, but also avoid problems with
+ // shared position objects being unsafely updated.
+ function rebaseHistArray(array, from, to, diff) {
+ for (var i = 0; i < array.length; ++i) {
+ var sub = array[i], ok = true;
+ if (sub.ranges) {
+ if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; }
+ for (var j = 0; j < sub.ranges.length; j++) {
+ rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff);
+ rebaseHistSelSingle(sub.ranges[j].head, from, to, diff);
+ }
+ continue;
+ }
+ for (var j = 0; j < sub.changes.length; ++j) {
+ var cur = sub.changes[j];
+ if (to < cur.from.line) {
+ cur.from = Pos(cur.from.line + diff, cur.from.ch);
+ cur.to = Pos(cur.to.line + diff, cur.to.ch);
+ } else if (from <= cur.to.line) {
+ ok = false;
+ break;
+ }
+ }
+ if (!ok) {
+ array.splice(0, i + 1);
+ i = 0;
+ }
+ }
+ }
+
+ function rebaseHist(hist, change) {
+ var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
+ rebaseHistArray(hist.done, from, to, diff);
+ rebaseHistArray(hist.undone, from, to, diff);
+ }
+
+ // EVENT UTILITIES
+
+ // Due to the fact that we still support jurassic IE versions, some
+ // compatibility wrappers are needed.
+
+ var e_preventDefault = CodeMirror.e_preventDefault = function(e) {
+ if (e.preventDefault) e.preventDefault();
+ else e.returnValue = false;
+ };
+ var e_stopPropagation = CodeMirror.e_stopPropagation = function(e) {
+ if (e.stopPropagation) e.stopPropagation();
+ else e.cancelBubble = true;
+ };
+ function e_defaultPrevented(e) {
+ return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
+ }
+ var e_stop = CodeMirror.e_stop = function(e) {e_preventDefault(e); e_stopPropagation(e);};
+
+ function e_target(e) {return e.target || e.srcElement;}
+ function e_button(e) {
+ var b = e.which;
+ if (b == null) {
+ if (e.button & 1) b = 1;
+ else if (e.button & 2) b = 3;
+ else if (e.button & 4) b = 2;
+ }
+ if (mac && e.ctrlKey && b == 1) b = 3;
+ return b;
+ }
+
+ // EVENT HANDLING
+
+ // Lightweight event framework. on/off also work on DOM nodes,
+ // registering native DOM handlers.
+
+ var on = CodeMirror.on = function(emitter, type, f) {
+ if (emitter.addEventListener)
+ emitter.addEventListener(type, f, false);
+ else if (emitter.attachEvent)
+ emitter.attachEvent("on" + type, f);
+ else {
+ var map = emitter._handlers || (emitter._handlers = {});
+ var arr = map[type] || (map[type] = []);
+ arr.push(f);
+ }
+ };
+
+ var noHandlers = []
+ function getHandlers(emitter, type, copy) {
+ var arr = emitter._handlers && emitter._handlers[type]
+ if (copy) return arr && arr.length > 0 ? arr.slice() : noHandlers
+ else return arr || noHandlers
+ }
+
+ var off = CodeMirror.off = function(emitter, type, f) {
+ if (emitter.removeEventListener)
+ emitter.removeEventListener(type, f, false);
+ else if (emitter.detachEvent)
+ emitter.detachEvent("on" + type, f);
+ else {
+ var handlers = getHandlers(emitter, type, false)
+ for (var i = 0; i < handlers.length; ++i)
+ if (handlers[i] == f) { handlers.splice(i, 1); break; }
+ }
+ };
+
+ var signal = CodeMirror.signal = function(emitter, type /*, values...*/) {
+ var handlers = getHandlers(emitter, type, true)
+ if (!handlers.length) return;
+ var args = Array.prototype.slice.call(arguments, 2);
+ for (var i = 0; i < handlers.length; ++i) handlers[i].apply(null, args);
+ };
+
+ var orphanDelayedCallbacks = null;
+
+ // Often, we want to signal events at a point where we are in the
+ // middle of some work, but don't want the handler to start calling
+ // other methods on the editor, which might be in an inconsistent
+ // state or simply not expect any other events to happen.
+ // signalLater looks whether there are any handlers, and schedules
+ // them to be executed when the last operation ends, or, if no
+ // operation is active, when a timeout fires.
+ function signalLater(emitter, type /*, values...*/) {
+ var arr = getHandlers(emitter, type, false)
+ if (!arr.length) return;
+ var args = Array.prototype.slice.call(arguments, 2), list;
+ if (operationGroup) {
+ list = operationGroup.delayedCallbacks;
+ } else if (orphanDelayedCallbacks) {
+ list = orphanDelayedCallbacks;
+ } else {
+ list = orphanDelayedCallbacks = [];
+ setTimeout(fireOrphanDelayed, 0);
+ }
+ function bnd(f) {return function(){f.apply(null, args);};};
+ for (var i = 0; i < arr.length; ++i)
+ list.push(bnd(arr[i]));
+ }
+
+ function fireOrphanDelayed() {
+ var delayed = orphanDelayedCallbacks;
+ orphanDelayedCallbacks = null;
+ for (var i = 0; i < delayed.length; ++i) delayed[i]();
+ }
+
+ // The DOM events that CodeMirror handles can be overridden by
+ // registering a (non-DOM) handler on the editor for the event name,
+ // and preventDefault-ing the event in that handler.
+ function signalDOMEvent(cm, e, override) {
+ if (typeof e == "string")
+ e = {type: e, preventDefault: function() { this.defaultPrevented = true; }};
+ signal(cm, override || e.type, cm, e);
+ return e_defaultPrevented(e) || e.codemirrorIgnore;
+ }
+
+ function signalCursorActivity(cm) {
+ var arr = cm._handlers && cm._handlers.cursorActivity;
+ if (!arr) return;
+ var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []);
+ for (var i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
+ set.push(arr[i]);
+ }
+
+ function hasHandler(emitter, type) {
+ return getHandlers(emitter, type).length > 0
+ }
+
+ // Add on and off methods to a constructor's prototype, to make
+ // registering events on such objects more convenient.
+ function eventMixin(ctor) {
+ ctor.prototype.on = function(type, f) {on(this, type, f);};
+ ctor.prototype.off = function(type, f) {off(this, type, f);};
+ }
+
+ // MISC UTILITIES
+
+ // Number of pixels added to scroller and sizer to hide scrollbar
+ var scrollerGap = 30;
+
+ // Returned or thrown by various protocols to signal 'I'm not
+ // handling this'.
+ var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
+
+ // Reused option objects for setSelection & friends
+ var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"};
+
+ function Delayed() {this.id = null;}
+ Delayed.prototype.set = function(ms, f) {
+ clearTimeout(this.id);
+ this.id = setTimeout(f, ms);
+ };
+
+ // Counts the column offset in a string, taking tabs into account.
+ // Used mostly to find indentation.
+ var countColumn = CodeMirror.countColumn = function(string, end, tabSize, startIndex, startValue) {
+ if (end == null) {
+ end = string.search(/[^\s\u00a0]/);
+ if (end == -1) end = string.length;
+ }
+ for (var i = startIndex || 0, n = startValue || 0;;) {
+ var nextTab = string.indexOf("\t", i);
+ if (nextTab < 0 || nextTab >= end)
+ return n + (end - i);
+ n += nextTab - i;
+ n += tabSize - (n % tabSize);
+ i = nextTab + 1;
+ }
+ };
+
+ // The inverse of countColumn -- find the offset that corresponds to
+ // a particular column.
+ var findColumn = CodeMirror.findColumn = function(string, goal, tabSize) {
+ for (var pos = 0, col = 0;;) {
+ var nextTab = string.indexOf("\t", pos);
+ if (nextTab == -1) nextTab = string.length;
+ var skipped = nextTab - pos;
+ if (nextTab == string.length || col + skipped >= goal)
+ return pos + Math.min(skipped, goal - col);
+ col += nextTab - pos;
+ col += tabSize - (col % tabSize);
+ pos = nextTab + 1;
+ if (col >= goal) return pos;
+ }
+ }
+
+ var spaceStrs = [""];
+ function spaceStr(n) {
+ while (spaceStrs.length <= n)
+ spaceStrs.push(lst(spaceStrs) + " ");
+ return spaceStrs[n];
+ }
+
+ function lst(arr) { return arr[arr.length-1]; }
+
+ var selectInput = function(node) { node.select(); };
+ if (ios) // Mobile Safari apparently has a bug where select() is broken.
+ selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; };
+ else if (ie) // Suppress mysterious IE10 errors
+ selectInput = function(node) { try { node.select(); } catch(_e) {} };
+
+ function indexOf(array, elt) {
+ for (var i = 0; i < array.length; ++i)
+ if (array[i] == elt) return i;
+ return -1;
+ }
+ function map(array, f) {
+ var out = [];
+ for (var i = 0; i < array.length; i++) out[i] = f(array[i], i);
+ return out;
+ }
+
+ function nothing() {}
+
+ function createObj(base, props) {
+ var inst;
+ if (Object.create) {
+ inst = Object.create(base);
+ } else {
+ nothing.prototype = base;
+ inst = new nothing();
+ }
+ if (props) copyObj(props, inst);
+ return inst;
+ };
+
+ function copyObj(obj, target, overwrite) {
+ if (!target) target = {};
+ for (var prop in obj)
+ if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+ target[prop] = obj[prop];
+ return target;
+ }
+
+ function bind(f) {
+ var args = Array.prototype.slice.call(arguments, 1);
+ return function(){return f.apply(null, args);};
+ }
+
+ var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
+ var isWordCharBasic = CodeMirror.isWordChar = function(ch) {
+ return /\w/.test(ch) || ch > "\x80" &&
+ (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
+ };
+ function isWordChar(ch, helper) {
+ if (!helper) return isWordCharBasic(ch);
+ if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true;
+ return helper.test(ch);
+ }
+
+ function isEmpty(obj) {
+ for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
+ return true;
+ }
+
+ // Extending unicode characters. A series of a non-extending char +
+ // any number of extending chars is treated as a single unit as far
+ // as editing and measuring is concerned. This is not fully correct,
+ // since some scripts/fonts/browsers also treat other configurations
+ // of code points as a group.
+ var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/;
+ function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch); }
+
+ // DOM UTILITIES
+
+ function elt(tag, content, className, style) {
+ var e = document.createElement(tag);
+ if (className) e.className = className;
+ if (style) e.style.cssText = style;
+ if (typeof content == "string") e.appendChild(document.createTextNode(content));
+ else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
+ return e;
+ }
+
+ var range;
+ if (document.createRange) range = function(node, start, end, endNode) {
+ var r = document.createRange();
+ r.setEnd(endNode || node, end);
+ r.setStart(node, start);
+ return r;
+ };
+ else range = function(node, start, end) {
+ var r = document.body.createTextRange();
+ try { r.moveToElementText(node.parentNode); }
+ catch(e) { return r; }
+ r.collapse(true);
+ r.moveEnd("character", end);
+ r.moveStart("character", start);
+ return r;
+ };
+
+ function removeChildren(e) {
+ for (var count = e.childNodes.length; count > 0; --count)
+ e.removeChild(e.firstChild);
+ return e;
+ }
+
+ function removeChildrenAndAdd(parent, e) {
+ return removeChildren(parent).appendChild(e);
+ }
+
+ var contains = CodeMirror.contains = function(parent, child) {
+ if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+ child = child.parentNode;
+ if (parent.contains)
+ return parent.contains(child);
+ do {
+ if (child.nodeType == 11) child = child.host;
+ if (child == parent) return true;
+ } while (child = child.parentNode);
+ };
+
+ function activeElt() {
+ var activeElement = document.activeElement;
+ while (activeElement && activeElement.root && activeElement.root.activeElement)
+ activeElement = activeElement.root.activeElement;
+ return activeElement;
+ }
+ // Older versions of IE throws unspecified error when touching
+ // document.activeElement in some cases (during loading, in iframe)
+ if (ie && ie_version < 11) activeElt = function() {
+ try { return document.activeElement; }
+ catch(e) { return document.body; }
+ };
+
+ function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*"); }
+ var rmClass = CodeMirror.rmClass = function(node, cls) {
+ var current = node.className;
+ var match = classTest(cls).exec(current);
+ if (match) {
+ var after = current.slice(match.index + match[0].length);
+ node.className = current.slice(0, match.index) + (after ? match[1] + after : "");
+ }
+ };
+ var addClass = CodeMirror.addClass = function(node, cls) {
+ var current = node.className;
+ if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls;
+ };
+ function joinClasses(a, b) {
+ var as = a.split(" ");
+ for (var i = 0; i < as.length; i++)
+ if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i];
+ return b;
+ }
+
+ // WINDOW-WIDE EVENTS
+
+ // These must be handled carefully, because naively registering a
+ // handler for each editor will cause the editors to never be
+ // garbage collected.
+
+ function forEachCodeMirror(f) {
+ if (!document.body.getElementsByClassName) return;
+ var byClass = document.body.getElementsByClassName("CodeMirror");
+ for (var i = 0; i < byClass.length; i++) {
+ var cm = byClass[i].CodeMirror;
+ if (cm) f(cm);
+ }
+ }
+
+ var globalsRegistered = false;
+ function ensureGlobalHandlers() {
+ if (globalsRegistered) return;
+ registerGlobalHandlers();
+ globalsRegistered = true;
+ }
+ function registerGlobalHandlers() {
+ // When the window resizes, we need to refresh active editors.
+ var resizeTimer;
+ on(window, "resize", function() {
+ if (resizeTimer == null) resizeTimer = setTimeout(function() {
+ resizeTimer = null;
+ forEachCodeMirror(onResize);
+ }, 100);
+ });
+ // When the window loses focus, we want to show the editor as blurred
+ on(window, "blur", function() {
+ forEachCodeMirror(onBlur);
+ });
+ }
+
+ // FEATURE DETECTION
+
+ // Detect drag-and-drop
+ var dragAndDrop = function() {
+ // There is *some* kind of drag-and-drop support in IE6-8, but I
+ // couldn't get it to work yet.
+ if (ie && ie_version < 9) return false;
+ var div = elt('div');
+ return "draggable" in div || "dragDrop" in div;
+ }();
+
+ var zwspSupported;
+ function zeroWidthElement(measure) {
+ if (zwspSupported == null) {
+ var test = elt("span", "\u200b");
+ removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
+ if (measure.firstChild.offsetHeight != 0)
+ zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8);
+ }
+ var node = zwspSupported ? elt("span", "\u200b") :
+ elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
+ node.setAttribute("cm-text", "");
+ return node;
+ }
+
+ // Feature-detect IE's crummy client rect reporting for bidi text
+ var badBidiRects;
+ function hasBadBidiRects(measure) {
+ if (badBidiRects != null) return badBidiRects;
+ var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"));
+ var r0 = range(txt, 0, 1).getBoundingClientRect();
+ if (!r0 || r0.left == r0.right) return false; // Safari returns null in some cases (#2780)
+ var r1 = range(txt, 1, 2).getBoundingClientRect();
+ return badBidiRects = (r1.right - r0.right < 3);
+ }
+
+ // See if "".split is the broken IE version, if so, provide an
+ // alternative way to split lines.
+ var splitLinesAuto = CodeMirror.splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
+ var pos = 0, result = [], l = string.length;
+ while (pos <= l) {
+ var nl = string.indexOf("\n", pos);
+ if (nl == -1) nl = string.length;
+ var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
+ var rt = line.indexOf("\r");
+ if (rt != -1) {
+ result.push(line.slice(0, rt));
+ pos += rt + 1;
+ } else {
+ result.push(line);
+ pos = nl + 1;
+ }
+ }
+ return result;
+ } : function(string){return string.split(/\r\n?|\n/);};
+
+ var hasSelection = window.getSelection ? function(te) {
+ try { return te.selectionStart != te.selectionEnd; }
+ catch(e) { return false; }
+ } : function(te) {
+ try {var range = te.ownerDocument.selection.createRange();}
+ catch(e) {}
+ if (!range || range.parentElement() != te) return false;
+ return range.compareEndPoints("StartToEnd", range) != 0;
+ };
+
+ var hasCopyEvent = (function() {
+ var e = elt("div");
+ if ("oncopy" in e) return true;
+ e.setAttribute("oncopy", "return;");
+ return typeof e.oncopy == "function";
+ })();
+
+ var badZoomedRects = null;
+ function hasBadZoomedRects(measure) {
+ if (badZoomedRects != null) return badZoomedRects;
+ var node = removeChildrenAndAdd(measure, elt("span", "x"));
+ var normal = node.getBoundingClientRect();
+ var fromRange = range(node, 0, 1).getBoundingClientRect();
+ return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1;
+ }
+
+ // KEY NAMES
+
+ var keyNames = CodeMirror.keyNames = {
+ 3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+ 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+ 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+ 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+ 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+ 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+ 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+ 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+ };
+ (function() {
+ // Number keys
+ for (var i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i);
+ // Alphabetic keys
+ for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
+ // Function keys
+ for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
+ })();
+
+ // BIDI HELPERS
+
+ function iterateBidiSections(order, from, to, f) {
+ if (!order) return f(from, to, "ltr");
+ var found = false;
+ for (var i = 0; i < order.length; ++i) {
+ var part = order[i];
+ if (part.from < to && part.to > from || from == to && part.to == from) {
+ f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
+ found = true;
+ }
+ }
+ if (!found) f(from, to, "ltr");
+ }
+
+ function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
+ function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
+
+ function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
+ function lineRight(line) {
+ var order = getOrder(line);
+ if (!order) return line.text.length;
+ return bidiRight(lst(order));
+ }
+
+ function lineStart(cm, lineN) {
+ var line = getLine(cm.doc, lineN);
+ var visual = visualLine(line);
+ if (visual != line) lineN = lineNo(visual);
+ var order = getOrder(visual);
+ var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
+ return Pos(lineN, ch);
+ }
+ function lineEnd(cm, lineN) {
+ var merged, line = getLine(cm.doc, lineN);
+ while (merged = collapsedSpanAtEnd(line)) {
+ line = merged.find(1, true).line;
+ lineN = null;
+ }
+ var order = getOrder(line);
+ var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
+ return Pos(lineN == null ? lineNo(line) : lineN, ch);
+ }
+ function lineStartSmart(cm, pos) {
+ var start = lineStart(cm, pos.line);
+ var line = getLine(cm.doc, start.line);
+ var order = getOrder(line);
+ if (!order || order[0].level == 0) {
+ var firstNonWS = Math.max(0, line.text.search(/\S/));
+ var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch;
+ return Pos(start.line, inWS ? 0 : firstNonWS);
+ }
+ return start;
+ }
+
+ function compareBidiLevel(order, a, b) {
+ var linedir = order[0].level;
+ if (a == linedir) return true;
+ if (b == linedir) return false;
+ return a < b;
+ }
+ var bidiOther;
+ function getBidiPartAt(order, pos) {
+ bidiOther = null;
+ for (var i = 0, found; i < order.length; ++i) {
+ var cur = order[i];
+ if (cur.from < pos && cur.to > pos) return i;
+ if ((cur.from == pos || cur.to == pos)) {
+ if (found == null) {
+ found = i;
+ } else if (compareBidiLevel(order, cur.level, order[found].level)) {
+ if (cur.from != cur.to) bidiOther = found;
+ return i;
+ } else {
+ if (cur.from != cur.to) bidiOther = i;
+ return found;
+ }
+ }
+ }
+ return found;
+ }
+
+ function moveInLine(line, pos, dir, byUnit) {
+ if (!byUnit) return pos + dir;
+ do pos += dir;
+ while (pos > 0 && isExtendingChar(line.text.charAt(pos)));
+ return pos;
+ }
+
+ // This is needed in order to move 'visually' through bi-directional
+ // text -- i.e., pressing left should make the cursor go left, even
+ // when in RTL text. The tricky part is the 'jumps', where RTL and
+ // LTR text touch each other. This often requires the cursor offset
+ // to move more than one unit, in order to visually move one unit.
+ function moveVisually(line, start, dir, byUnit) {
+ var bidi = getOrder(line);
+ if (!bidi) return moveLogically(line, start, dir, byUnit);
+ var pos = getBidiPartAt(bidi, start), part = bidi[pos];
+ var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
+
+ for (;;) {
+ if (target > part.from && target < part.to) return target;
+ if (target == part.from || target == part.to) {
+ if (getBidiPartAt(bidi, target) == pos) return target;
+ part = bidi[pos += dir];
+ return (dir > 0) == part.level % 2 ? part.to : part.from;
+ } else {
+ part = bidi[pos += dir];
+ if (!part) return null;
+ if ((dir > 0) == part.level % 2)
+ target = moveInLine(line, part.to, -1, byUnit);
+ else
+ target = moveInLine(line, part.from, 1, byUnit);
+ }
+ }
+ }
+
+ function moveLogically(line, start, dir, byUnit) {
+ var target = start + dir;
+ if (byUnit) while (target > 0 && isExtendingChar(line.text.charAt(target))) target += dir;
+ return target < 0 || target > line.text.length ? null : target;
+ }
+
+ // Bidirectional ordering algorithm
+ // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+ // that this (partially) implements.
+
+ // One-char codes used for character types:
+ // L (L): Left-to-Right
+ // R (R): Right-to-Left
+ // r (AL): Right-to-Left Arabic
+ // 1 (EN): European Number
+ // + (ES): European Number Separator
+ // % (ET): European Number Terminator
+ // n (AN): Arabic Number
+ // , (CS): Common Number Separator
+ // m (NSM): Non-Spacing Mark
+ // b (BN): Boundary Neutral
+ // s (B): Paragraph Separator
+ // t (S): Segment Separator
+ // w (WS): Whitespace
+ // N (ON): Other Neutrals
+
+ // Returns null if characters are ordered as they appear
+ // (left-to-right), or an array of sections ({from, to, level}
+ // objects) in the order in which they occur visually.
+ var bidiOrdering = (function() {
+ // Character types for codepoints 0 to 0xff
+ var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN";
+ // Character types for codepoints 0x600 to 0x6ff
+ var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmm";
+ function charType(code) {
+ if (code <= 0xf7) return lowTypes.charAt(code);
+ else if (0x590 <= code && code <= 0x5f4) return "R";
+ else if (0x600 <= code && code <= 0x6ed) return arabicTypes.charAt(code - 0x600);
+ else if (0x6ee <= code && code <= 0x8ac) return "r";
+ else if (0x2000 <= code && code <= 0x200b) return "w";
+ else if (code == 0x200c) return "b";
+ else return "L";
+ }
+
+ var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
+ var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
+ // Browsers seem to always treat the boundaries of block elements as being L.
+ var outerType = "L";
+
+ function BidiSpan(level, from, to) {
+ this.level = level;
+ this.from = from; this.to = to;
+ }
+
+ return function(str) {
+ if (!bidiRE.test(str)) return false;
+ var len = str.length, types = [];
+ for (var i = 0, type; i < len; ++i)
+ types.push(type = charType(str.charCodeAt(i)));
+
+ // W1. Examine each non-spacing mark (NSM) in the level run, and
+ // change the type of the NSM to the type of the previous
+ // character. If the NSM is at the start of the level run, it will
+ // get the type of sor.
+ for (var i = 0, prev = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "m") types[i] = prev;
+ else prev = type;
+ }
+
+ // W2. Search backwards from each instance of a European number
+ // until the first strong type (R, L, AL, or sor) is found. If an
+ // AL is found, change the type of the European number to Arabic
+ // number.
+ // W3. Change all ALs to R.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (type == "1" && cur == "r") types[i] = "n";
+ else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
+ }
+
+ // W4. A single European separator between two European numbers
+ // changes to a European number. A single common separator between
+ // two numbers of the same type changes to that type.
+ for (var i = 1, prev = types[0]; i < len - 1; ++i) {
+ var type = types[i];
+ if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
+ else if (type == "," && prev == types[i+1] &&
+ (prev == "1" || prev == "n")) types[i] = prev;
+ prev = type;
+ }
+
+ // W5. A sequence of European terminators adjacent to European
+ // numbers changes to all European numbers.
+ // W6. Otherwise, separators and terminators change to Other
+ // Neutral.
+ for (var i = 0; i < len; ++i) {
+ var type = types[i];
+ if (type == ",") types[i] = "N";
+ else if (type == "%") {
+ for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
+ var replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // W7. Search backwards from each instance of a European number
+ // until the first strong type (R, L, or sor) is found. If an L is
+ // found, then change the type of the European number to L.
+ for (var i = 0, cur = outerType; i < len; ++i) {
+ var type = types[i];
+ if (cur == "L" && type == "1") types[i] = "L";
+ else if (isStrong.test(type)) cur = type;
+ }
+
+ // N1. A sequence of neutrals takes the direction of the
+ // surrounding strong text if the text on both sides has the same
+ // direction. European and Arabic numbers act as if they were R in
+ // terms of their influence on neutrals. Start-of-level-run (sor)
+ // and end-of-level-run (eor) are used at level run boundaries.
+ // N2. Any remaining neutrals take the embedding direction.
+ for (var i = 0; i < len; ++i) {
+ if (isNeutral.test(types[i])) {
+ for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
+ var before = (i ? types[i-1] : outerType) == "L";
+ var after = (end < len ? types[end] : outerType) == "L";
+ var replace = before || after ? "L" : "R";
+ for (var j = i; j < end; ++j) types[j] = replace;
+ i = end - 1;
+ }
+ }
+
+ // Here we depart from the documented algorithm, in order to avoid
+ // building up an actual levels array. Since there are only three
+ // levels (0, 1, 2) in an implementation that doesn't take
+ // explicit embedding into account, we can build up the order on
+ // the fly, without following the level-based algorithm.
+ var order = [], m;
+ for (var i = 0; i < len;) {
+ if (countsAsLeft.test(types[i])) {
+ var start = i;
+ for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
+ order.push(new BidiSpan(0, start, i));
+ } else {
+ var pos = i, at = order.length;
+ for (++i; i < len && types[i] != "L"; ++i) {}
+ for (var j = pos; j < i;) {
+ if (countsAsNum.test(types[j])) {
+ if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j));
+ var nstart = j;
+ for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
+ order.splice(at, 0, new BidiSpan(2, nstart, j));
+ pos = j;
+ } else ++j;
+ }
+ if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i));
+ }
+ }
+ if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+ order[0].from = m[0].length;
+ order.unshift(new BidiSpan(0, 0, m[0].length));
+ }
+ if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+ lst(order).to -= m[0].length;
+ order.push(new BidiSpan(0, len - m[0].length, len));
+ }
+ if (order[0].level == 2)
+ order.unshift(new BidiSpan(1, order[0].to, order[0].to));
+ if (order[0].level != lst(order).level)
+ order.push(new BidiSpan(order[0].level, len, len));
+
+ return order;
+ };
+ })();
+
+ // THE END
+
+ CodeMirror.version = "5.7.1";
+
+ return CodeMirror;
+});
+
+},{}],7:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../markdown/markdown"), require("../../addon/mode/overlay"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../markdown/markdown", "../../addon/mode/overlay"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i
+
+CodeMirror.defineMode("gfm", function(config, modeConfig) {
+ var codeDepth = 0;
+ function blankLine(state) {
+ state.code = false;
+ return null;
+ }
+ var gfmOverlay = {
+ startState: function() {
+ return {
+ code: false,
+ codeBlock: false,
+ ateSpace: false
+ };
+ },
+ copyState: function(s) {
+ return {
+ code: s.code,
+ codeBlock: s.codeBlock,
+ ateSpace: s.ateSpace
+ };
+ },
+ token: function(stream, state) {
+ state.combineTokens = null;
+
+ // Hack to prevent formatting override inside code blocks (block and inline)
+ if (state.codeBlock) {
+ if (stream.match(/^```+/)) {
+ state.codeBlock = false;
+ return null;
+ }
+ stream.skipToEnd();
+ return null;
+ }
+ if (stream.sol()) {
+ state.code = false;
+ }
+ if (stream.sol() && stream.match(/^```+/)) {
+ stream.skipToEnd();
+ state.codeBlock = true;
+ return null;
+ }
+ // If this block is changed, it may need to be updated in Markdown mode
+ if (stream.peek() === '`') {
+ stream.next();
+ var before = stream.pos;
+ stream.eatWhile('`');
+ var difference = 1 + stream.pos - before;
+ if (!state.code) {
+ codeDepth = difference;
+ state.code = true;
+ } else {
+ if (difference === codeDepth) { // Must be exact
+ state.code = false;
+ }
+ }
+ return null;
+ } else if (state.code) {
+ stream.next();
+ return null;
+ }
+ // Check if space. If so, links can be formatted later on
+ if (stream.eatSpace()) {
+ state.ateSpace = true;
+ return null;
+ }
+ if (stream.sol() || state.ateSpace) {
+ state.ateSpace = false;
+ if (modeConfig.gitHubSpice !== false) {
+ if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?:[a-f0-9]{7,40}\b)/)) {
+ // User/Project@SHA
+ // User@SHA
+ // SHA
+ state.combineTokens = true;
+ return "link";
+ } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
+ // User/Project#Num
+ // User#Num
+ // #Num
+ state.combineTokens = true;
+ return "link";
+ }
+ }
+ }
+ if (stream.match(urlRE) &&
+ stream.string.slice(stream.start - 2, stream.start) != "](" &&
+ (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
+ // URLs
+ // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
+ // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
+ // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
+ state.combineTokens = true;
+ return "link";
+ }
+ stream.next();
+ return null;
+ },
+ blankLine: blankLine
+ };
+
+ var markdownConfig = {
+ underscoresBreakWords: false,
+ taskLists: true,
+ fencedCodeBlocks: '```',
+ strikethrough: true
+ };
+ for (var attr in modeConfig) {
+ markdownConfig[attr] = modeConfig[attr];
+ }
+ markdownConfig.name = "markdown";
+ return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);
+
+}, "markdown");
+
+ CodeMirror.defineMIME("text/x-gfm", "gfm");
+});
+
+},{"../../addon/mode/overlay":5,"../../lib/codemirror":6,"../markdown/markdown":8}],8:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"), require("../xml/xml"), require("../meta"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror", "../xml/xml", "../meta"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
+
+ var htmlFound = CodeMirror.modes.hasOwnProperty("xml");
+ var htmlMode = CodeMirror.getMode(cmCfg, htmlFound ? {name: "xml", htmlMode: true} : "text/plain");
+
+ function getMode(name) {
+ if (CodeMirror.findModeByName) {
+ var found = CodeMirror.findModeByName(name);
+ if (found) name = found.mime || found.mimes[0];
+ }
+ var mode = CodeMirror.getMode(cmCfg, name);
+ return mode.name == "null" ? null : mode;
+ }
+
+ // Should characters that affect highlighting be highlighted separate?
+ // Does not include characters that will be output (such as `1.` and `-` for lists)
+ if (modeCfg.highlightFormatting === undefined)
+ modeCfg.highlightFormatting = false;
+
+ // Maximum number of nested blockquotes. Set to 0 for infinite nesting.
+ // Excess `>` will emit `error` token.
+ if (modeCfg.maxBlockquoteDepth === undefined)
+ modeCfg.maxBlockquoteDepth = 0;
+
+ // Should underscores in words open/close em/strong?
+ if (modeCfg.underscoresBreakWords === undefined)
+ modeCfg.underscoresBreakWords = true;
+
+ // Use `fencedCodeBlocks` to configure fenced code blocks. false to
+ // disable, string to specify a precise regexp that the fence should
+ // match, and true to allow three or more backticks or tildes (as
+ // per CommonMark).
+
+ // Turn on task lists? ("- [ ] " and "- [x] ")
+ if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
+
+ // Turn on strikethrough syntax
+ if (modeCfg.strikethrough === undefined)
+ modeCfg.strikethrough = false;
+
+ var codeDepth = 0;
+
+ var header = 'header'
+ , code = 'comment'
+ , quote = 'quote'
+ , list1 = 'variable-2'
+ , list2 = 'variable-3'
+ , list3 = 'keyword'
+ , hr = 'hr'
+ , image = 'tag'
+ , formatting = 'formatting'
+ , linkinline = 'link'
+ , linkemail = 'link'
+ , linktext = 'link'
+ , linkhref = 'string'
+ , em = 'em'
+ , strong = 'strong'
+ , strikethrough = 'strikethrough';
+
+ var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
+ , ulRE = /^[*\-+]\s+/
+ , olRE = /^[0-9]+([.)])\s+/
+ , taskListRE = /^\[(x| )\](?=\s)/ // Must follow ulRE or olRE
+ , atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
+ , setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/
+ , textRE = /^[^#!\[\]*_\\<>` "'(~]+/
+ , fencedCodeRE = new RegExp("^(" + (modeCfg.fencedCodeBlocks === true ? "~~~+|```+" : modeCfg.fencedCodeBlocks) +
+ ")[ \\t]*([\\w+#]*)");
+
+ function switchInline(stream, state, f) {
+ state.f = state.inline = f;
+ return f(stream, state);
+ }
+
+ function switchBlock(stream, state, f) {
+ state.f = state.block = f;
+ return f(stream, state);
+ }
+
+ function lineIsEmpty(line) {
+ return !line || !/\S/.test(line.string)
+ }
+
+ // Blocks
+
+ function blankLine(state) {
+ // Reset linkTitle state
+ state.linkTitle = false;
+ // Reset EM state
+ state.em = false;
+ // Reset STRONG state
+ state.strong = false;
+ // Reset strikethrough state
+ state.strikethrough = false;
+ // Reset state.quote
+ state.quote = 0;
+ // Reset state.indentedCode
+ state.indentedCode = false;
+ if (!htmlFound && state.f == htmlBlock) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ }
+ // Reset state.trailingSpace
+ state.trailingSpace = 0;
+ state.trailingSpaceNewLine = false;
+ // Mark this line as blank
+ state.prevLine = state.thisLine
+ state.thisLine = null
+ return null;
+ }
+
+ function blockNormal(stream, state) {
+
+ var sol = stream.sol();
+
+ var prevLineIsList = state.list !== false,
+ prevLineIsIndentedCode = state.indentedCode;
+
+ state.indentedCode = false;
+
+ if (prevLineIsList) {
+ if (state.indentationDiff >= 0) { // Continued list
+ if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block
+ state.indentation -= state.indentationDiff;
+ }
+ state.list = null;
+ } else if (state.indentation > 0) {
+ state.list = null;
+ state.listDepth = Math.floor(state.indentation / 4);
+ } else { // No longer a list
+ state.list = false;
+ state.listDepth = 0;
+ }
+ }
+
+ var match = null;
+ if (state.indentationDiff >= 4) {
+ stream.skipToEnd();
+ if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {
+ state.indentation -= 4;
+ state.indentedCode = true;
+ return code;
+ } else {
+ return null;
+ }
+ } else if (stream.eatSpace()) {
+ return null;
+ } else if ((match = stream.match(atxHeaderRE)) && match[1].length <= 6) {
+ state.header = match[1].length;
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ state.f = state.inline;
+ return getType(state);
+ } else if (!lineIsEmpty(state.prevLine) && !state.quote && !prevLineIsList &&
+ !prevLineIsIndentedCode && (match = stream.match(setextHeaderRE))) {
+ state.header = match[0].charAt(0) == '=' ? 1 : 2;
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ state.f = state.inline;
+ return getType(state);
+ } else if (stream.eat('>')) {
+ state.quote = sol ? 1 : state.quote + 1;
+ if (modeCfg.highlightFormatting) state.formatting = "quote";
+ stream.eatSpace();
+ return getType(state);
+ } else if (stream.peek() === '[') {
+ return switchInline(stream, state, footnoteLink);
+ } else if (stream.match(hrRE, true)) {
+ state.hr = true;
+ return hr;
+ } else if ((lineIsEmpty(state.prevLine) || prevLineIsList) && (stream.match(ulRE, false) || stream.match(olRE, false))) {
+ var listType = null;
+ if (stream.match(ulRE, true)) {
+ listType = 'ul';
+ } else {
+ stream.match(olRE, true);
+ listType = 'ol';
+ }
+ state.indentation = stream.column() + stream.current().length;
+ state.list = true;
+ state.listDepth++;
+ if (modeCfg.taskLists && stream.match(taskListRE, false)) {
+ state.taskList = true;
+ }
+ state.f = state.inline;
+ if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
+ return getType(state);
+ } else if (modeCfg.fencedCodeBlocks && (match = stream.match(fencedCodeRE, true))) {
+ state.fencedChars = match[1]
+ // try switching mode
+ state.localMode = getMode(match[2]);
+ if (state.localMode) state.localState = state.localMode.startState();
+ state.f = state.block = local;
+ if (modeCfg.highlightFormatting) state.formatting = "code-block";
+ state.code = true;
+ return getType(state);
+ }
+
+ return switchInline(stream, state, state.inline);
+ }
+
+ function htmlBlock(stream, state) {
+ var style = htmlMode.token(stream, state.htmlState);
+ if ((htmlFound && state.htmlState.tagStart === null &&
+ (!state.htmlState.context && state.htmlState.tokenize.isInText)) ||
+ (state.md_inside && stream.current().indexOf(">") > -1)) {
+ state.f = inlineNormal;
+ state.block = blockNormal;
+ state.htmlState = null;
+ }
+ return style;
+ }
+
+ function local(stream, state) {
+ if (stream.sol() && state.fencedChars && stream.match(state.fencedChars, false)) {
+ state.localMode = state.localState = null;
+ state.f = state.block = leavingLocal;
+ return null;
+ } else if (state.localMode) {
+ return state.localMode.token(stream, state.localState);
+ } else {
+ stream.skipToEnd();
+ return code;
+ }
+ }
+
+ function leavingLocal(stream, state) {
+ stream.match(state.fencedChars);
+ state.block = blockNormal;
+ state.f = inlineNormal;
+ state.fencedChars = null;
+ if (modeCfg.highlightFormatting) state.formatting = "code-block";
+ state.code = true;
+ var returnType = getType(state);
+ state.code = false;
+ return returnType;
+ }
+
+ // Inline
+ function getType(state) {
+ var styles = [];
+
+ if (state.formatting) {
+ styles.push(formatting);
+
+ if (typeof state.formatting === "string") state.formatting = [state.formatting];
+
+ for (var i = 0; i < state.formatting.length; i++) {
+ styles.push(formatting + "-" + state.formatting[i]);
+
+ if (state.formatting[i] === "header") {
+ styles.push(formatting + "-" + state.formatting[i] + "-" + state.header);
+ }
+
+ // Add `formatting-quote` and `formatting-quote-#` for blockquotes
+ // Add `error` instead if the maximum blockquote nesting depth is passed
+ if (state.formatting[i] === "quote") {
+ if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+ styles.push(formatting + "-" + state.formatting[i] + "-" + state.quote);
+ } else {
+ styles.push("error");
+ }
+ }
+ }
+ }
+
+ if (state.taskOpen) {
+ styles.push("meta");
+ return styles.length ? styles.join(' ') : null;
+ }
+ if (state.taskClosed) {
+ styles.push("property");
+ return styles.length ? styles.join(' ') : null;
+ }
+
+ if (state.linkHref) {
+ styles.push(linkhref, "url");
+ } else { // Only apply inline styles to non-url text
+ if (state.strong) { styles.push(strong); }
+ if (state.em) { styles.push(em); }
+ if (state.strikethrough) { styles.push(strikethrough); }
+
+ if (state.linkText) { styles.push(linktext); }
+
+ if (state.code) { styles.push(code); }
+ }
+
+ if (state.header) { styles.push(header); styles.push(header + "-" + state.header); }
+
+ if (state.quote) {
+ styles.push(quote);
+
+ // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
+ if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+ styles.push(quote + "-" + state.quote);
+ } else {
+ styles.push(quote + "-" + modeCfg.maxBlockquoteDepth);
+ }
+ }
+
+ if (state.list !== false) {
+ var listMod = (state.listDepth - 1) % 3;
+ if (!listMod) {
+ styles.push(list1);
+ } else if (listMod === 1) {
+ styles.push(list2);
+ } else {
+ styles.push(list3);
+ }
+ }
+
+ if (state.trailingSpaceNewLine) {
+ styles.push("trailing-space-new-line");
+ } else if (state.trailingSpace) {
+ styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
+ }
+
+ return styles.length ? styles.join(' ') : null;
+ }
+
+ function handleText(stream, state) {
+ if (stream.match(textRE, true)) {
+ return getType(state);
+ }
+ return undefined;
+ }
+
+ function inlineNormal(stream, state) {
+ var style = state.text(stream, state);
+ if (typeof style !== 'undefined')
+ return style;
+
+ if (state.list) { // List marker (*, +, -, 1., etc)
+ state.list = null;
+ return getType(state);
+ }
+
+ if (state.taskList) {
+ var taskOpen = stream.match(taskListRE, true)[1] !== "x";
+ if (taskOpen) state.taskOpen = true;
+ else state.taskClosed = true;
+ if (modeCfg.highlightFormatting) state.formatting = "task";
+ state.taskList = false;
+ return getType(state);
+ }
+
+ state.taskOpen = false;
+ state.taskClosed = false;
+
+ if (state.header && stream.match(/^#+$/, true)) {
+ if (modeCfg.highlightFormatting) state.formatting = "header";
+ return getType(state);
+ }
+
+ // Get sol() value now, before character is consumed
+ var sol = stream.sol();
+
+ var ch = stream.next();
+
+ if (ch === '\\') {
+ stream.next();
+ if (modeCfg.highlightFormatting) {
+ var type = getType(state);
+ return type ? type + " formatting-escape" : "formatting-escape";
+ }
+ }
+
+ // Matches link titles present on next line
+ if (state.linkTitle) {
+ state.linkTitle = false;
+ var matchCh = ch;
+ if (ch === '(') {
+ matchCh = ')';
+ }
+ matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+ var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
+ if (stream.match(new RegExp(regex), true)) {
+ return linkhref;
+ }
+ }
+
+ // If this block is changed, it may need to be updated in GFM mode
+ if (ch === '`') {
+ var previousFormatting = state.formatting;
+ if (modeCfg.highlightFormatting) state.formatting = "code";
+ var t = getType(state);
+ var before = stream.pos;
+ stream.eatWhile('`');
+ var difference = 1 + stream.pos - before;
+ if (!state.code) {
+ codeDepth = difference;
+ state.code = true;
+ return getType(state);
+ } else {
+ if (difference === codeDepth) { // Must be exact
+ state.code = false;
+ return t;
+ }
+ state.formatting = previousFormatting;
+ return getType(state);
+ }
+ } else if (state.code) {
+ return getType(state);
+ }
+
+ if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
+ stream.match(/\[[^\]]*\]/);
+ state.inline = state.f = linkHref;
+ return image;
+ }
+
+ if (ch === '[' && stream.match(/.*\](\(.*\)| ?\[.*\])/, false)) {
+ state.linkText = true;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ return getType(state);
+ }
+
+ if (ch === ']' && state.linkText && stream.match(/\(.*\)| ?\[.*\]/, false)) {
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ state.linkText = false;
+ state.inline = state.f = linkHref;
+ return type;
+ }
+
+ if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
+ state.f = state.inline = linkInline;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + linkinline;
+ }
+
+ if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
+ state.f = state.inline = linkInline;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + linkemail;
+ }
+
+ if (ch === '<' && stream.match(/^(!--|\w)/, false)) {
+ var end = stream.string.indexOf(">", stream.pos);
+ if (end != -1) {
+ var atts = stream.string.substring(stream.start, end);
+ if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
+ }
+ stream.backUp(1);
+ state.htmlState = CodeMirror.startState(htmlMode);
+ return switchBlock(stream, state, htmlBlock);
+ }
+
+ if (ch === '<' && stream.match(/^\/\w*?>/)) {
+ state.md_inside = false;
+ return "tag";
+ }
+
+ var ignoreUnderscore = false;
+ if (!modeCfg.underscoresBreakWords) {
+ if (ch === '_' && stream.peek() !== '_' && stream.match(/(\w)/, false)) {
+ var prevPos = stream.pos - 2;
+ if (prevPos >= 0) {
+ var prevCh = stream.string.charAt(prevPos);
+ if (prevCh !== '_' && prevCh.match(/(\w)/, false)) {
+ ignoreUnderscore = true;
+ }
+ }
+ }
+ }
+ if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
+ if (sol && stream.peek() === ' ') {
+ // Do nothing, surrounded by newline and space
+ } else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
+ if (modeCfg.highlightFormatting) state.formatting = "strong";
+ var t = getType(state);
+ state.strong = false;
+ return t;
+ } else if (!state.strong && stream.eat(ch)) { // Add STRONG
+ state.strong = ch;
+ if (modeCfg.highlightFormatting) state.formatting = "strong";
+ return getType(state);
+ } else if (state.em === ch) { // Remove EM
+ if (modeCfg.highlightFormatting) state.formatting = "em";
+ var t = getType(state);
+ state.em = false;
+ return t;
+ } else if (!state.em) { // Add EM
+ state.em = ch;
+ if (modeCfg.highlightFormatting) state.formatting = "em";
+ return getType(state);
+ }
+ } else if (ch === ' ') {
+ if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
+ if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+ return getType(state);
+ } else { // Not surrounded by spaces, back up pointer
+ stream.backUp(1);
+ }
+ }
+ }
+
+ if (modeCfg.strikethrough) {
+ if (ch === '~' && stream.eatWhile(ch)) {
+ if (state.strikethrough) {// Remove strikethrough
+ if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+ var t = getType(state);
+ state.strikethrough = false;
+ return t;
+ } else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
+ state.strikethrough = true;
+ if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+ return getType(state);
+ }
+ } else if (ch === ' ') {
+ if (stream.match(/^~~/, true)) { // Probably surrounded by space
+ if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+ return getType(state);
+ } else { // Not surrounded by spaces, back up pointer
+ stream.backUp(2);
+ }
+ }
+ }
+ }
+
+ if (ch === ' ') {
+ if (stream.match(/ +$/, false)) {
+ state.trailingSpace++;
+ } else if (state.trailingSpace) {
+ state.trailingSpaceNewLine = true;
+ }
+ }
+
+ return getType(state);
+ }
+
+ function linkInline(stream, state) {
+ var ch = stream.next();
+
+ if (ch === ">") {
+ state.f = state.inline = inlineNormal;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var type = getType(state);
+ if (type){
+ type += " ";
+ } else {
+ type = "";
+ }
+ return type + linkinline;
+ }
+
+ stream.match(/^[^>]+/, true);
+
+ return linkinline;
+ }
+
+ function linkHref(stream, state) {
+ // Check if space, and return NULL if so (to avoid marking the space)
+ if(stream.eatSpace()){
+ return null;
+ }
+ var ch = stream.next();
+ if (ch === '(' || ch === '[') {
+ state.f = state.inline = getLinkHrefInside(ch === "(" ? ")" : "]");
+ if (modeCfg.highlightFormatting) state.formatting = "link-string";
+ state.linkHref = true;
+ return getType(state);
+ }
+ return 'error';
+ }
+
+ function getLinkHrefInside(endChar) {
+ return function(stream, state) {
+ var ch = stream.next();
+
+ if (ch === endChar) {
+ state.f = state.inline = inlineNormal;
+ if (modeCfg.highlightFormatting) state.formatting = "link-string";
+ var returnState = getType(state);
+ state.linkHref = false;
+ return returnState;
+ }
+
+ if (stream.match(inlineRE(endChar), true)) {
+ stream.backUp(1);
+ }
+
+ state.linkHref = true;
+ return getType(state);
+ };
+ }
+
+ function footnoteLink(stream, state) {
+ if (stream.match(/^[^\]]*\]:/, false)) {
+ state.f = footnoteLinkInside;
+ stream.next(); // Consume [
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ state.linkText = true;
+ return getType(state);
+ }
+ return switchInline(stream, state, inlineNormal);
+ }
+
+ function footnoteLinkInside(stream, state) {
+ if (stream.match(/^\]:/, true)) {
+ state.f = state.inline = footnoteUrl;
+ if (modeCfg.highlightFormatting) state.formatting = "link";
+ var returnType = getType(state);
+ state.linkText = false;
+ return returnType;
+ }
+
+ stream.match(/^[^\]]+/, true);
+
+ return linktext;
+ }
+
+ function footnoteUrl(stream, state) {
+ // Check if space, and return NULL if so (to avoid marking the space)
+ if(stream.eatSpace()){
+ return null;
+ }
+ // Match URL
+ stream.match(/^[^\s]+/, true);
+ // Check for link title
+ if (stream.peek() === undefined) { // End of line, set flag to check next line
+ state.linkTitle = true;
+ } else { // More content on line, check if link title
+ stream.match(/^(?:\s+(?:"(?:[^"\\]|\\\\|\\.)+"|'(?:[^'\\]|\\\\|\\.)+'|\((?:[^)\\]|\\\\|\\.)+\)))?/, true);
+ }
+ state.f = state.inline = inlineNormal;
+ return linkhref + " url";
+ }
+
+ var savedInlineRE = [];
+ function inlineRE(endChar) {
+ if (!savedInlineRE[endChar]) {
+ // Escape endChar for RegExp (taken from http://stackoverflow.com/a/494122/526741)
+ endChar = (endChar+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+ // Match any non-endChar, escaped character, as well as the closing
+ // endChar.
+ savedInlineRE[endChar] = new RegExp('^(?:[^\\\\]|\\\\.)*?(' + endChar + ')');
+ }
+ return savedInlineRE[endChar];
+ }
+
+ var mode = {
+ startState: function() {
+ return {
+ f: blockNormal,
+
+ prevLine: null,
+ thisLine: null,
+
+ block: blockNormal,
+ htmlState: null,
+ indentation: 0,
+
+ inline: inlineNormal,
+ text: handleText,
+
+ formatting: false,
+ linkText: false,
+ linkHref: false,
+ linkTitle: false,
+ em: false,
+ strong: false,
+ header: 0,
+ hr: false,
+ taskList: false,
+ list: false,
+ listDepth: 0,
+ quote: 0,
+ trailingSpace: 0,
+ trailingSpaceNewLine: false,
+ strikethrough: false,
+ fencedChars: null
+ };
+ },
+
+ copyState: function(s) {
+ return {
+ f: s.f,
+
+ prevLine: s.prevLine,
+ thisLine: s.this,
+
+ block: s.block,
+ htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
+ indentation: s.indentation,
+
+ localMode: s.localMode,
+ localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,
+
+ inline: s.inline,
+ text: s.text,
+ formatting: false,
+ linkTitle: s.linkTitle,
+ code: s.code,
+ em: s.em,
+ strong: s.strong,
+ strikethrough: s.strikethrough,
+ header: s.header,
+ hr: s.hr,
+ taskList: s.taskList,
+ list: s.list,
+ listDepth: s.listDepth,
+ quote: s.quote,
+ indentedCode: s.indentedCode,
+ trailingSpace: s.trailingSpace,
+ trailingSpaceNewLine: s.trailingSpaceNewLine,
+ md_inside: s.md_inside,
+ fencedChars: s.fencedChars
+ };
+ },
+
+ token: function(stream, state) {
+
+ // Reset state.formatting
+ state.formatting = false;
+
+ if (stream != state.thisLine) {
+ var forceBlankLine = state.header || state.hr;
+
+ // Reset state.header and state.hr
+ state.header = 0;
+ state.hr = false;
+
+ if (stream.match(/^\s*$/, true) || forceBlankLine) {
+ blankLine(state);
+ if (!forceBlankLine) return null
+ state.prevLine = null
+ }
+
+ state.prevLine = state.thisLine
+ state.thisLine = stream
+
+ // Reset state.taskList
+ state.taskList = false;
+
+ // Reset state.trailingSpace
+ state.trailingSpace = 0;
+ state.trailingSpaceNewLine = false;
+
+ state.f = state.block;
+ var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, ' ').length;
+ var difference = Math.floor((indentation - state.indentation) / 4) * 4;
+ if (difference > 4) difference = 4;
+ var adjustedIndentation = state.indentation + difference;
+ state.indentationDiff = adjustedIndentation - state.indentation;
+ state.indentation = adjustedIndentation;
+ if (indentation > 0) return null;
+ }
+ return state.f(stream, state);
+ },
+
+ innerMode: function(state) {
+ if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
+ if (state.localState) return {state: state.localState, mode: state.localMode};
+ return {state: state, mode: mode};
+ },
+
+ blankLine: blankLine,
+
+ getType: getType,
+
+ fold: "markdown"
+ };
+ return mode;
+}, "xml");
+
+CodeMirror.defineMIME("text/x-markdown", "markdown");
+
+});
+
+},{"../../lib/codemirror":6,"../meta":9,"../xml/xml":10}],9:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+ "use strict";
+
+ CodeMirror.modeInfo = [
+ {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
+ {name: "PGP", mimes: ["application/pgp", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["pgp"]},
+ {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
+ {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
+ {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
+ {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h"]},
+ {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
+ {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy"]},
+ {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp"]},
+ {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj"]},
+ {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
+ {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists.txt$/},
+ {name: "CoffeeScript", mime: "text/x-coffeescript", mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
+ {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
+ {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
+ {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
+ {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
+ {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
+ {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
+ {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
+ {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
+ {name: "Django", mime: "text/x-django", mode: "django"},
+ {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
+ {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
+ {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
+ {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
+ {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
+ {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
+ {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
+ {name: "Embedded Javascript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
+ {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
+ {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
+ {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
+ {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
+ {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90"]},
+ {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
+ {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
+ {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
+ {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history).md$/i},
+ {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
+ {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy"]},
+ {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
+ {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
+ {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
+ {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
+ {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
+ {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm"], alias: ["xhtml"]},
+ {name: "HTTP", mime: "message/http", mode: "http"},
+ {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
+ {name: "Jade", mime: "text/x-jade", mode: "jade", ext: ["jade"]},
+ {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
+ {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
+ {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
+ mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
+ {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
+ {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
+ {name: "Jinja2", mime: "null", mode: "jinja2"},
+ {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"]},
+ {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
+ {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
+ {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
+ {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
+ {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
+ {name: "mIRC", mime: "text/mirc", mode: "mirc"},
+ {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
+ {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb"]},
+ {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
+ {name: "MUMPS", mime: "text/x-mumps", mode: "mumps"},
+ {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
+ {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
+ {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
+ {name: "NTriples", mime: "text/n-triples", mode: "ntriples", ext: ["nt"]},
+ {name: "Objective C", mime: "text/x-objectivec", mode: "clike", ext: ["m", "mm"]},
+ {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
+ {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
+ {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
+ {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
+ {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
+ {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
+ {name: "PHP", mime: "application/x-httpd-php", mode: "php", ext: ["php", "php3", "php4", "php5", "phtml"]},
+ {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
+ {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
+ {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
+ {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
+ {name: "Python", mime: "text/x-python", mode: "python", ext: ["py", "pyw"]},
+ {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
+ {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
+ {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r"], alias: ["rscript"]},
+ {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
+ {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
+ {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
+ {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
+ {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
+ {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
+ {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
+ {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
+ {name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
+ {name: "Shell", mime: "text/x-sh", mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"]},
+ {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
+ {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
+ {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
+ {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
+ {name: "Solr", mime: "text/x-solr", mode: "solr"},
+ {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
+ {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
+ {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
+ {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
+ {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
+ {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
+ {name: "MariaDB", mime: "text/x-mariadb", mode: "sql"},
+ {name: "sTeX", mime: "text/x-stex", mode: "stex"},
+ {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx"], alias: ["tex"]},
+ {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v"]},
+ {name: "Tcl", mime: "text/x-tcl", mode: "tcl", ext: ["tcl"]},
+ {name: "Textile", mime: "text/x-textile", mode: "textile", ext: ["textile"]},
+ {name: "TiddlyWiki ", mime: "text/x-tiddlywiki", mode: "tiddlywiki"},
+ {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
+ {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
+ {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
+ {name: "troff", mime: "troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
+ {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
+ {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
+ {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
+ {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
+ {name: "Twig", mime: "text/x-twig", mode: "twig"},
+ {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
+ {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
+ {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
+ {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
+ {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
+ {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd"], alias: ["rss", "wsdl", "xsd"]},
+ {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
+ {name: "YAML", mime: "text/x-yaml", mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
+ {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
+ {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
+ {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
+ {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]}
+ ];
+ // Ensure all modes have a mime property for backwards compatibility
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.mimes) info.mime = info.mimes[0];
+ }
+
+ CodeMirror.findModeByMIME = function(mime) {
+ mime = mime.toLowerCase();
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.mime == mime) return info;
+ if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
+ if (info.mimes[j] == mime) return info;
+ }
+ };
+
+ CodeMirror.findModeByExtension = function(ext) {
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.ext) for (var j = 0; j < info.ext.length; j++)
+ if (info.ext[j] == ext) return info;
+ }
+ };
+
+ CodeMirror.findModeByFileName = function(filename) {
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.file && info.file.test(filename)) return info;
+ }
+ var dot = filename.lastIndexOf(".");
+ var ext = dot > -1 && filename.substring(dot + 1, filename.length);
+ if (ext) return CodeMirror.findModeByExtension(ext);
+ };
+
+ CodeMirror.findModeByName = function(name) {
+ name = name.toLowerCase();
+ for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+ var info = CodeMirror.modeInfo[i];
+ if (info.name.toLowerCase() == name) return info;
+ if (info.alias) for (var j = 0; j < info.alias.length; j++)
+ if (info.alias[j].toLowerCase() == name) return info;
+ }
+ };
+});
+
+},{"../lib/codemirror":6}],10:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+ if (typeof exports == "object" && typeof module == "object") // CommonJS
+ mod(require("../../lib/codemirror"));
+ else if (typeof define == "function" && define.amd) // AMD
+ define(["../../lib/codemirror"], mod);
+ else // Plain browser env
+ mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("xml", function(config, parserConfig) {
+ var indentUnit = config.indentUnit;
+ var multilineTagIndentFactor = parserConfig.multilineTagIndentFactor || 1;
+ var multilineTagIndentPastTag = parserConfig.multilineTagIndentPastTag;
+ if (multilineTagIndentPastTag == null) multilineTagIndentPastTag = true;
+
+ var Kludges = parserConfig.htmlMode ? {
+ autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
+ 'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
+ 'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
+ 'track': true, 'wbr': true, 'menuitem': true},
+ implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
+ 'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
+ 'th': true, 'tr': true},
+ contextGrabbers: {
+ 'dd': {'dd': true, 'dt': true},
+ 'dt': {'dd': true, 'dt': true},
+ 'li': {'li': true},
+ 'option': {'option': true, 'optgroup': true},
+ 'optgroup': {'optgroup': true},
+ 'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
+ 'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
+ 'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
+ 'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
+ 'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
+ 'rp': {'rp': true, 'rt': true},
+ 'rt': {'rp': true, 'rt': true},
+ 'tbody': {'tbody': true, 'tfoot': true},
+ 'td': {'td': true, 'th': true},
+ 'tfoot': {'tbody': true},
+ 'th': {'td': true, 'th': true},
+ 'thead': {'tbody': true, 'tfoot': true},
+ 'tr': {'tr': true}
+ },
+ doNotIndent: {"pre": true},
+ allowUnquoted: true,
+ allowMissing: true,
+ caseFold: true
+ } : {
+ autoSelfClosers: {},
+ implicitlyClosed: {},
+ contextGrabbers: {},
+ doNotIndent: {},
+ allowUnquoted: false,
+ allowMissing: false,
+ caseFold: false
+ };
+ var alignCDATA = parserConfig.alignCDATA;
+
+ // Return variables for tokenizers
+ var type, setStyle;
+
+ function inText(stream, state) {
+ function chain(parser) {
+ state.tokenize = parser;
+ return parser(stream, state);
+ }
+
+ var ch = stream.next();
+ if (ch == "<") {
+ if (stream.eat("!")) {
+ if (stream.eat("[")) {
+ if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
+ else return null;
+ } else if (stream.match("--")) {
+ return chain(inBlock("comment", "-->"));
+ } else if (stream.match("DOCTYPE", true, true)) {
+ stream.eatWhile(/[\w\._\-]/);
+ return chain(doctype(1));
+ } else {
+ return null;
+ }
+ } else if (stream.eat("?")) {
+ stream.eatWhile(/[\w\._\-]/);
+ state.tokenize = inBlock("meta", "?>");
+ return "meta";
+ } else {
+ type = stream.eat("/") ? "closeTag" : "openTag";
+ state.tokenize = inTag;
+ return "tag bracket";
+ }
+ } else if (ch == "&") {
+ var ok;
+ if (stream.eat("#")) {
+ if (stream.eat("x")) {
+ ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
+ } else {
+ ok = stream.eatWhile(/[\d]/) && stream.eat(";");
+ }
+ } else {
+ ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
+ }
+ return ok ? "atom" : "error";
+ } else {
+ stream.eatWhile(/[^&<]/);
+ return null;
+ }
+ }
+ inText.isInText = true;
+
+ function inTag(stream, state) {
+ var ch = stream.next();
+ if (ch == ">" || (ch == "/" && stream.eat(">"))) {
+ state.tokenize = inText;
+ type = ch == ">" ? "endTag" : "selfcloseTag";
+ return "tag bracket";
+ } else if (ch == "=") {
+ type = "equals";
+ return null;
+ } else if (ch == "<") {
+ state.tokenize = inText;
+ state.state = baseState;
+ state.tagName = state.tagStart = null;
+ var next = state.tokenize(stream, state);
+ return next ? next + " tag error" : "tag error";
+ } else if (/[\'\"]/.test(ch)) {
+ state.tokenize = inAttribute(ch);
+ state.stringStartCol = stream.column();
+ return state.tokenize(stream, state);
+ } else {
+ stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
+ return "word";
+ }
+ }
+
+ function inAttribute(quote) {
+ var closure = function(stream, state) {
+ while (!stream.eol()) {
+ if (stream.next() == quote) {
+ state.tokenize = inTag;
+ break;
+ }
+ }
+ return "string";
+ };
+ closure.isInAttribute = true;
+ return closure;
+ }
+
+ function inBlock(style, terminator) {
+ return function(stream, state) {
+ while (!stream.eol()) {
+ if (stream.match(terminator)) {
+ state.tokenize = inText;
+ break;
+ }
+ stream.next();
+ }
+ return style;
+ };
+ }
+ function doctype(depth) {
+ return function(stream, state) {
+ var ch;
+ while ((ch = stream.next()) != null) {
+ if (ch == "<") {
+ state.tokenize = doctype(depth + 1);
+ return state.tokenize(stream, state);
+ } else if (ch == ">") {
+ if (depth == 1) {
+ state.tokenize = inText;
+ break;
+ } else {
+ state.tokenize = doctype(depth - 1);
+ return state.tokenize(stream, state);
+ }
+ }
+ }
+ return "meta";
+ };
+ }
+
+ function Context(state, tagName, startOfLine) {
+ this.prev = state.context;
+ this.tagName = tagName;
+ this.indent = state.indented;
+ this.startOfLine = startOfLine;
+ if (Kludges.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
+ this.noIndent = true;
+ }
+ function popContext(state) {
+ if (state.context) state.context = state.context.prev;
+ }
+ function maybePopContext(state, nextTagName) {
+ var parentTagName;
+ while (true) {
+ if (!state.context) {
+ return;
+ }
+ parentTagName = state.context.tagName;
+ if (!Kludges.contextGrabbers.hasOwnProperty(parentTagName) ||
+ !Kludges.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
+ return;
+ }
+ popContext(state);
+ }
+ }
+
+ function baseState(type, stream, state) {
+ if (type == "openTag") {
+ state.tagStart = stream.column();
+ return tagNameState;
+ } else if (type == "closeTag") {
+ return closeTagNameState;
+ } else {
+ return baseState;
+ }
+ }
+ function tagNameState(type, stream, state) {
+ if (type == "word") {
+ state.tagName = stream.current();
+ setStyle = "tag";
+ return attrState;
+ } else {
+ setStyle = "error";
+ return tagNameState;
+ }
+ }
+ function closeTagNameState(type, stream, state) {
+ if (type == "word") {
+ var tagName = stream.current();
+ if (state.context && state.context.tagName != tagName &&
+ Kludges.implicitlyClosed.hasOwnProperty(state.context.tagName))
+ popContext(state);
+ if (state.context && state.context.tagName == tagName) {
+ setStyle = "tag";
+ return closeState;
+ } else {
+ setStyle = "tag error";
+ return closeStateErr;
+ }
+ } else {
+ setStyle = "error";
+ return closeStateErr;
+ }
+ }
+
+ function closeState(type, _stream, state) {
+ if (type != "endTag") {
+ setStyle = "error";
+ return closeState;
+ }
+ popContext(state);
+ return baseState;
+ }
+ function closeStateErr(type, stream, state) {
+ setStyle = "error";
+ return closeState(type, stream, state);
+ }
+
+ function attrState(type, _stream, state) {
+ if (type == "word") {
+ setStyle = "attribute";
+ return attrEqState;
+ } else if (type == "endTag" || type == "selfcloseTag") {
+ var tagName = state.tagName, tagStart = state.tagStart;
+ state.tagName = state.tagStart = null;
+ if (type == "selfcloseTag" ||
+ Kludges.autoSelfClosers.hasOwnProperty(tagName)) {
+ maybePopContext(state, tagName);
+ } else {
+ maybePopContext(state, tagName);
+ state.context = new Context(state, tagName, tagStart == state.indented);
+ }
+ return baseState;
+ }
+ setStyle = "error";
+ return attrState;
+ }
+ function attrEqState(type, stream, state) {
+ if (type == "equals") return attrValueState;
+ if (!Kludges.allowMissing) setStyle = "error";
+ return attrState(type, stream, state);
+ }
+ function attrValueState(type, stream, state) {
+ if (type == "string") return attrContinuedState;
+ if (type == "word" && Kludges.allowUnquoted) {setStyle = "string"; return attrState;}
+ setStyle = "error";
+ return attrState(type, stream, state);
+ }
+ function attrContinuedState(type, stream, state) {
+ if (type == "string") return attrContinuedState;
+ return attrState(type, stream, state);
+ }
+
+ return {
+ startState: function() {
+ return {tokenize: inText,
+ state: baseState,
+ indented: 0,
+ tagName: null, tagStart: null,
+ context: null};
+ },
+
+ token: function(stream, state) {
+ if (!state.tagName && stream.sol())
+ state.indented = stream.indentation();
+
+ if (stream.eatSpace()) return null;
+ type = null;
+ var style = state.tokenize(stream, state);
+ if ((style || type) && style != "comment") {
+ setStyle = null;
+ state.state = state.state(type || style, stream, state);
+ if (setStyle)
+ style = setStyle == "error" ? style + " error" : setStyle;
+ }
+ return style;
+ },
+
+ indent: function(state, textAfter, fullLine) {
+ var context = state.context;
+ // Indent multi-line strings (e.g. css).
+ if (state.tokenize.isInAttribute) {
+ if (state.tagStart == state.indented)
+ return state.stringStartCol + 1;
+ else
+ return state.indented + indentUnit;
+ }
+ if (context && context.noIndent) return CodeMirror.Pass;
+ if (state.tokenize != inTag && state.tokenize != inText)
+ return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
+ // Indent the starts of attribute names.
+ if (state.tagName) {
+ if (multilineTagIndentPastTag)
+ return state.tagStart + state.tagName.length + 2;
+ else
+ return state.tagStart + indentUnit * multilineTagIndentFactor;
+ }
+ if (alignCDATA && /$/,
+ blockCommentStart: "",
+
+ configuration: parserConfig.htmlMode ? "html" : "xml",
+ helperType: parserConfig.htmlMode ? "html" : "xml"
+ };
+});
+
+CodeMirror.defineMIME("text/xml", "xml");
+CodeMirror.defineMIME("application/xml", "xml");
+if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
+ CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
+
+});
+
+},{"../../lib/codemirror":6}],11:[function(require,module,exports){
+(function (global){
+/**
+ * marked - a markdown parser
+ * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/chjj/marked
+ */
+
+;(function() {
+
+/**
+ * Block-Level Grammar
+ */
+
+var block = {
+ newline: /^\n+/,
+ code: /^( {4}[^\n]+\n*)+/,
+ fences: noop,
+ hr: /^( *[-*_]){3,} *(?:\n+|$)/,
+ heading: /^ *(#{1,6}) *([^\n]+?) *#* *(?:\n+|$)/,
+ nptable: noop,
+ lheading: /^([^\n]+)\n *(=|-){2,} *(?:\n+|$)/,
+ blockquote: /^( *>[^\n]+(\n(?!def)[^\n]+)*\n*)+/,
+ list: /^( *)(bull) [\s\S]+?(?:hr|def|\n{2,}(?! )(?!\1bull )\n*|\s*$)/,
+ html: /^ *(?:comment *(?:\n|\s*$)|closed *(?:\n{2,}|\s*$)|closing *(?:\n{2,}|\s*$))/,
+ def: /^ *\[([^\]]+)\]: *([^\s>]+)>?(?: +["(]([^\n]+)[")])? *(?:\n+|$)/,
+ table: noop,
+ paragraph: /^((?:[^\n]+\n?(?!hr|heading|lheading|blockquote|tag|def))+)\n*/,
+ text: /^[^\n]+/
+};
+
+block.bullet = /(?:[*+-]|\d+\.)/;
+block.item = /^( *)(bull) [^\n]*(?:\n(?!\1bull )[^\n]*)*/;
+block.item = replace(block.item, 'gm')
+ (/bull/g, block.bullet)
+ ();
+
+block.list = replace(block.list)
+ (/bull/g, block.bullet)
+ ('hr', '\\n+(?=\\1?(?:[-*_] *){3,}(?:\\n+|$))')
+ ('def', '\\n+(?=' + block.def.source + ')')
+ ();
+
+block.blockquote = replace(block.blockquote)
+ ('def', block.def)
+ ();
+
+block._tag = '(?!(?:'
+ + 'a|em|strong|small|s|cite|q|dfn|abbr|data|time|code'
+ + '|var|samp|kbd|sub|sup|i|b|u|mark|ruby|rt|rp|bdi|bdo'
+ + '|span|br|wbr|ins|del|img)\\b)\\w+(?!:/|[^\\w\\s@]*@)\\b';
+
+block.html = replace(block.html)
+ ('comment', //)
+ ('closed', /<(tag)[\s\S]+?<\/\1>/)
+ ('closing', /])*?>/)
+ (/tag/g, block._tag)
+ ();
+
+block.paragraph = replace(block.paragraph)
+ ('hr', block.hr)
+ ('heading', block.heading)
+ ('lheading', block.lheading)
+ ('blockquote', block.blockquote)
+ ('tag', '<' + block._tag)
+ ('def', block.def)
+ ();
+
+/**
+ * Normal Block Grammar
+ */
+
+block.normal = merge({}, block);
+
+/**
+ * GFM Block Grammar
+ */
+
+block.gfm = merge({}, block.normal, {
+ fences: /^ *(`{3,}|~{3,})[ \.]*(\S+)? *\n([\s\S]*?)\s*\1 *(?:\n+|$)/,
+ paragraph: /^/,
+ heading: /^ *(#{1,6}) +([^\n]+?) *#* *(?:\n+|$)/
+});
+
+block.gfm.paragraph = replace(block.paragraph)
+ ('(?!', '(?!'
+ + block.gfm.fences.source.replace('\\1', '\\2') + '|'
+ + block.list.source.replace('\\1', '\\3') + '|')
+ ();
+
+/**
+ * GFM + Tables Block Grammar
+ */
+
+block.tables = merge({}, block.gfm, {
+ nptable: /^ *(\S.*\|.*)\n *([-:]+ *\|[-| :]*)\n((?:.*\|.*(?:\n|$))*)\n*/,
+ table: /^ *\|(.+)\n *\|( *[-:]+[-| :]*)\n((?: *\|.*(?:\n|$))*)\n*/
+});
+
+/**
+ * Block Lexer
+ */
+
+function Lexer(options) {
+ this.tokens = [];
+ this.tokens.links = {};
+ this.options = options || marked.defaults;
+ this.rules = block.normal;
+
+ if (this.options.gfm) {
+ if (this.options.tables) {
+ this.rules = block.tables;
+ } else {
+ this.rules = block.gfm;
+ }
+ }
+}
+
+/**
+ * Expose Block Rules
+ */
+
+Lexer.rules = block;
+
+/**
+ * Static Lex Method
+ */
+
+Lexer.lex = function(src, options) {
+ var lexer = new Lexer(options);
+ return lexer.lex(src);
+};
+
+/**
+ * Preprocessing
+ */
+
+Lexer.prototype.lex = function(src) {
+ src = src
+ .replace(/\r\n|\r/g, '\n')
+ .replace(/\t/g, ' ')
+ .replace(/\u00a0/g, ' ')
+ .replace(/\u2424/g, '\n');
+
+ return this.token(src, true);
+};
+
+/**
+ * Lexing
+ */
+
+Lexer.prototype.token = function(src, top, bq) {
+ var src = src.replace(/^ +$/gm, '')
+ , next
+ , loose
+ , cap
+ , bull
+ , b
+ , item
+ , space
+ , i
+ , l;
+
+ while (src) {
+ // newline
+ if (cap = this.rules.newline.exec(src)) {
+ src = src.substring(cap[0].length);
+ if (cap[0].length > 1) {
+ this.tokens.push({
+ type: 'space'
+ });
+ }
+ }
+
+ // code
+ if (cap = this.rules.code.exec(src)) {
+ src = src.substring(cap[0].length);
+ cap = cap[0].replace(/^ {4}/gm, '');
+ this.tokens.push({
+ type: 'code',
+ text: !this.options.pedantic
+ ? cap.replace(/\n+$/, '')
+ : cap
+ });
+ continue;
+ }
+
+ // fences (gfm)
+ if (cap = this.rules.fences.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'code',
+ lang: cap[2],
+ text: cap[3] || ''
+ });
+ continue;
+ }
+
+ // heading
+ if (cap = this.rules.heading.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'heading',
+ depth: cap[1].length,
+ text: cap[2]
+ });
+ continue;
+ }
+
+ // table no leading pipe (gfm)
+ if (top && (cap = this.rules.nptable.exec(src))) {
+ src = src.substring(cap[0].length);
+
+ item = {
+ type: 'table',
+ header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
+ align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+ cells: cap[3].replace(/\n$/, '').split('\n')
+ };
+
+ for (i = 0; i < item.align.length; i++) {
+ if (/^ *-+: *$/.test(item.align[i])) {
+ item.align[i] = 'right';
+ } else if (/^ *:-+: *$/.test(item.align[i])) {
+ item.align[i] = 'center';
+ } else if (/^ *:-+ *$/.test(item.align[i])) {
+ item.align[i] = 'left';
+ } else {
+ item.align[i] = null;
+ }
+ }
+
+ for (i = 0; i < item.cells.length; i++) {
+ item.cells[i] = item.cells[i].split(/ *\| */);
+ }
+
+ this.tokens.push(item);
+
+ continue;
+ }
+
+ // lheading
+ if (cap = this.rules.lheading.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'heading',
+ depth: cap[2] === '=' ? 1 : 2,
+ text: cap[1]
+ });
+ continue;
+ }
+
+ // hr
+ if (cap = this.rules.hr.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'hr'
+ });
+ continue;
+ }
+
+ // blockquote
+ if (cap = this.rules.blockquote.exec(src)) {
+ src = src.substring(cap[0].length);
+
+ this.tokens.push({
+ type: 'blockquote_start'
+ });
+
+ cap = cap[0].replace(/^ *> ?/gm, '');
+
+ // Pass `top` to keep the current
+ // "toplevel" state. This is exactly
+ // how markdown.pl works.
+ this.token(cap, top, true);
+
+ this.tokens.push({
+ type: 'blockquote_end'
+ });
+
+ continue;
+ }
+
+ // list
+ if (cap = this.rules.list.exec(src)) {
+ src = src.substring(cap[0].length);
+ bull = cap[2];
+
+ this.tokens.push({
+ type: 'list_start',
+ ordered: bull.length > 1
+ });
+
+ // Get each top-level item.
+ cap = cap[0].match(this.rules.item);
+
+ next = false;
+ l = cap.length;
+ i = 0;
+
+ for (; i < l; i++) {
+ item = cap[i];
+
+ // Remove the list item's bullet
+ // so it is seen as the next token.
+ space = item.length;
+ item = item.replace(/^ *([*+-]|\d+\.) +/, '');
+
+ // Outdent whatever the
+ // list item contains. Hacky.
+ if (~item.indexOf('\n ')) {
+ space -= item.length;
+ item = !this.options.pedantic
+ ? item.replace(new RegExp('^ {1,' + space + '}', 'gm'), '')
+ : item.replace(/^ {1,4}/gm, '');
+ }
+
+ // Determine whether the next list item belongs here.
+ // Backpedal if it does not belong in this list.
+ if (this.options.smartLists && i !== l - 1) {
+ b = block.bullet.exec(cap[i + 1])[0];
+ if (bull !== b && !(bull.length > 1 && b.length > 1)) {
+ src = cap.slice(i + 1).join('\n') + src;
+ i = l - 1;
+ }
+ }
+
+ // Determine whether item is loose or not.
+ // Use: /(^|\n)(?! )[^\n]+\n\n(?!\s*$)/
+ // for discount behavior.
+ loose = next || /\n\n(?!\s*$)/.test(item);
+ if (i !== l - 1) {
+ next = item.charAt(item.length - 1) === '\n';
+ if (!loose) loose = next;
+ }
+
+ this.tokens.push({
+ type: loose
+ ? 'loose_item_start'
+ : 'list_item_start'
+ });
+
+ // Recurse.
+ this.token(item, false, bq);
+
+ this.tokens.push({
+ type: 'list_item_end'
+ });
+ }
+
+ this.tokens.push({
+ type: 'list_end'
+ });
+
+ continue;
+ }
+
+ // html
+ if (cap = this.rules.html.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: this.options.sanitize
+ ? 'paragraph'
+ : 'html',
+ pre: !this.options.sanitizer
+ && (cap[1] === 'pre' || cap[1] === 'script' || cap[1] === 'style'),
+ text: cap[0]
+ });
+ continue;
+ }
+
+ // def
+ if ((!bq && top) && (cap = this.rules.def.exec(src))) {
+ src = src.substring(cap[0].length);
+ this.tokens.links[cap[1].toLowerCase()] = {
+ href: cap[2],
+ title: cap[3]
+ };
+ continue;
+ }
+
+ // table (gfm)
+ if (top && (cap = this.rules.table.exec(src))) {
+ src = src.substring(cap[0].length);
+
+ item = {
+ type: 'table',
+ header: cap[1].replace(/^ *| *\| *$/g, '').split(/ *\| */),
+ align: cap[2].replace(/^ *|\| *$/g, '').split(/ *\| */),
+ cells: cap[3].replace(/(?: *\| *)?\n$/, '').split('\n')
+ };
+
+ for (i = 0; i < item.align.length; i++) {
+ if (/^ *-+: *$/.test(item.align[i])) {
+ item.align[i] = 'right';
+ } else if (/^ *:-+: *$/.test(item.align[i])) {
+ item.align[i] = 'center';
+ } else if (/^ *:-+ *$/.test(item.align[i])) {
+ item.align[i] = 'left';
+ } else {
+ item.align[i] = null;
+ }
+ }
+
+ for (i = 0; i < item.cells.length; i++) {
+ item.cells[i] = item.cells[i]
+ .replace(/^ *\| *| *\| *$/g, '')
+ .split(/ *\| */);
+ }
+
+ this.tokens.push(item);
+
+ continue;
+ }
+
+ // top-level paragraph
+ if (top && (cap = this.rules.paragraph.exec(src))) {
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'paragraph',
+ text: cap[1].charAt(cap[1].length - 1) === '\n'
+ ? cap[1].slice(0, -1)
+ : cap[1]
+ });
+ continue;
+ }
+
+ // text
+ if (cap = this.rules.text.exec(src)) {
+ // Top-level should never reach here.
+ src = src.substring(cap[0].length);
+ this.tokens.push({
+ type: 'text',
+ text: cap[0]
+ });
+ continue;
+ }
+
+ if (src) {
+ throw new
+ Error('Infinite loop on byte: ' + src.charCodeAt(0));
+ }
+ }
+
+ return this.tokens;
+};
+
+/**
+ * Inline-Level Grammar
+ */
+
+var inline = {
+ escape: /^\\([\\`*{}\[\]()#+\-.!_>])/,
+ autolink: /^<([^ >]+(@|:\/)[^ >]+)>/,
+ url: noop,
+ tag: /^|^<\/?\w+(?:"[^"]*"|'[^']*'|[^'">])*?>/,
+ link: /^!?\[(inside)\]\(href\)/,
+ reflink: /^!?\[(inside)\]\s*\[([^\]]*)\]/,
+ nolink: /^!?\[((?:\[[^\]]*\]|[^\[\]])*)\]/,
+ strong: /^__([\s\S]+?)__(?!_)|^\*\*([\s\S]+?)\*\*(?!\*)/,
+ em: /^\b_((?:[^_]|__)+?)_\b|^\*((?:\*\*|[\s\S])+?)\*(?!\*)/,
+ code: /^(`+)\s*([\s\S]*?[^`])\s*\1(?!`)/,
+ br: /^ {2,}\n(?!\s*$)/,
+ del: noop,
+ text: /^[\s\S]+?(?=[\\?(?:\s+['"]([\s\S]*?)['"])?\s*/;
+
+inline.link = replace(inline.link)
+ ('inside', inline._inside)
+ ('href', inline._href)
+ ();
+
+inline.reflink = replace(inline.reflink)
+ ('inside', inline._inside)
+ ();
+
+/**
+ * Normal Inline Grammar
+ */
+
+inline.normal = merge({}, inline);
+
+/**
+ * Pedantic Inline Grammar
+ */
+
+inline.pedantic = merge({}, inline.normal, {
+ strong: /^__(?=\S)([\s\S]*?\S)__(?!_)|^\*\*(?=\S)([\s\S]*?\S)\*\*(?!\*)/,
+ em: /^_(?=\S)([\s\S]*?\S)_(?!_)|^\*(?=\S)([\s\S]*?\S)\*(?!\*)/
+});
+
+/**
+ * GFM Inline Grammar
+ */
+
+inline.gfm = merge({}, inline.normal, {
+ escape: replace(inline.escape)('])', '~|])')(),
+ url: /^(https?:\/\/[^\s<]+[^<.,:;"')\]\s])/,
+ del: /^~~(?=\S)([\s\S]*?\S)~~/,
+ text: replace(inline.text)
+ (']|', '~]|')
+ ('|', '|https?://|')
+ ()
+});
+
+/**
+ * GFM + Line Breaks Inline Grammar
+ */
+
+inline.breaks = merge({}, inline.gfm, {
+ br: replace(inline.br)('{2,}', '*')(),
+ text: replace(inline.gfm.text)('{2,}', '*')()
+});
+
+/**
+ * Inline Lexer & Compiler
+ */
+
+function InlineLexer(links, options) {
+ this.options = options || marked.defaults;
+ this.links = links;
+ this.rules = inline.normal;
+ this.renderer = this.options.renderer || new Renderer;
+ this.renderer.options = this.options;
+
+ if (!this.links) {
+ throw new
+ Error('Tokens array requires a `links` property.');
+ }
+
+ if (this.options.gfm) {
+ if (this.options.breaks) {
+ this.rules = inline.breaks;
+ } else {
+ this.rules = inline.gfm;
+ }
+ } else if (this.options.pedantic) {
+ this.rules = inline.pedantic;
+ }
+}
+
+/**
+ * Expose Inline Rules
+ */
+
+InlineLexer.rules = inline;
+
+/**
+ * Static Lexing/Compiling Method
+ */
+
+InlineLexer.output = function(src, links, options) {
+ var inline = new InlineLexer(links, options);
+ return inline.output(src);
+};
+
+/**
+ * Lexing/Compiling
+ */
+
+InlineLexer.prototype.output = function(src) {
+ var out = ''
+ , link
+ , text
+ , href
+ , cap;
+
+ while (src) {
+ // escape
+ if (cap = this.rules.escape.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += cap[1];
+ continue;
+ }
+
+ // autolink
+ if (cap = this.rules.autolink.exec(src)) {
+ src = src.substring(cap[0].length);
+ if (cap[2] === '@') {
+ text = cap[1].charAt(6) === ':'
+ ? this.mangle(cap[1].substring(7))
+ : this.mangle(cap[1]);
+ href = this.mangle('mailto:') + text;
+ } else {
+ text = escape(cap[1]);
+ href = text;
+ }
+ out += this.renderer.link(href, null, text);
+ continue;
+ }
+
+ // url (gfm)
+ if (!this.inLink && (cap = this.rules.url.exec(src))) {
+ src = src.substring(cap[0].length);
+ text = escape(cap[1]);
+ href = text;
+ out += this.renderer.link(href, null, text);
+ continue;
+ }
+
+ // tag
+ if (cap = this.rules.tag.exec(src)) {
+ if (!this.inLink && /^/i.test(cap[0])) {
+ this.inLink = false;
+ }
+ src = src.substring(cap[0].length);
+ out += this.options.sanitize
+ ? this.options.sanitizer
+ ? this.options.sanitizer(cap[0])
+ : escape(cap[0])
+ : cap[0]
+ continue;
+ }
+
+ // link
+ if (cap = this.rules.link.exec(src)) {
+ src = src.substring(cap[0].length);
+ this.inLink = true;
+ out += this.outputLink(cap, {
+ href: cap[2],
+ title: cap[3]
+ });
+ this.inLink = false;
+ continue;
+ }
+
+ // reflink, nolink
+ if ((cap = this.rules.reflink.exec(src))
+ || (cap = this.rules.nolink.exec(src))) {
+ src = src.substring(cap[0].length);
+ link = (cap[2] || cap[1]).replace(/\s+/g, ' ');
+ link = this.links[link.toLowerCase()];
+ if (!link || !link.href) {
+ out += cap[0].charAt(0);
+ src = cap[0].substring(1) + src;
+ continue;
+ }
+ this.inLink = true;
+ out += this.outputLink(cap, link);
+ this.inLink = false;
+ continue;
+ }
+
+ // strong
+ if (cap = this.rules.strong.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.strong(this.output(cap[2] || cap[1]));
+ continue;
+ }
+
+ // em
+ if (cap = this.rules.em.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.em(this.output(cap[2] || cap[1]));
+ continue;
+ }
+
+ // code
+ if (cap = this.rules.code.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.codespan(escape(cap[2], true));
+ continue;
+ }
+
+ // br
+ if (cap = this.rules.br.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.br();
+ continue;
+ }
+
+ // del (gfm)
+ if (cap = this.rules.del.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.del(this.output(cap[1]));
+ continue;
+ }
+
+ // text
+ if (cap = this.rules.text.exec(src)) {
+ src = src.substring(cap[0].length);
+ out += this.renderer.text(escape(this.smartypants(cap[0])));
+ continue;
+ }
+
+ if (src) {
+ throw new
+ Error('Infinite loop on byte: ' + src.charCodeAt(0));
+ }
+ }
+
+ return out;
+};
+
+/**
+ * Compile Link
+ */
+
+InlineLexer.prototype.outputLink = function(cap, link) {
+ var href = escape(link.href)
+ , title = link.title ? escape(link.title) : null;
+
+ return cap[0].charAt(0) !== '!'
+ ? this.renderer.link(href, title, this.output(cap[1]))
+ : this.renderer.image(href, title, escape(cap[1]));
+};
+
+/**
+ * Smartypants Transformations
+ */
+
+InlineLexer.prototype.smartypants = function(text) {
+ if (!this.options.smartypants) return text;
+ return text
+ // em-dashes
+ .replace(/---/g, '\u2014')
+ // en-dashes
+ .replace(/--/g, '\u2013')
+ // opening singles
+ .replace(/(^|[-\u2014/(\[{"\s])'/g, '$1\u2018')
+ // closing singles & apostrophes
+ .replace(/'/g, '\u2019')
+ // opening doubles
+ .replace(/(^|[-\u2014/(\[{\u2018\s])"/g, '$1\u201c')
+ // closing doubles
+ .replace(/"/g, '\u201d')
+ // ellipses
+ .replace(/\.{3}/g, '\u2026');
+};
+
+/**
+ * Mangle Links
+ */
+
+InlineLexer.prototype.mangle = function(text) {
+ if (!this.options.mangle) return text;
+ var out = ''
+ , l = text.length
+ , i = 0
+ , ch;
+
+ for (; i < l; i++) {
+ ch = text.charCodeAt(i);
+ if (Math.random() > 0.5) {
+ ch = 'x' + ch.toString(16);
+ }
+ out += '' + ch + ';';
+ }
+
+ return out;
+};
+
+/**
+ * Renderer
+ */
+
+function Renderer(options) {
+ this.options = options || {};
+}
+
+Renderer.prototype.code = function(code, lang, escaped) {
+ if (this.options.highlight) {
+ var out = this.options.highlight(code, lang);
+ if (out != null && out !== code) {
+ escaped = true;
+ code = out;
+ }
+ }
+
+ if (!lang) {
+ return ''
+ + (escaped ? code : escape(code, true))
+ + '\n
';
+ }
+
+ return ''
+ + (escaped ? code : escape(code, true))
+ + '\n
\n';
+};
+
+Renderer.prototype.blockquote = function(quote) {
+ return '\n' + quote + '
\n';
+};
+
+Renderer.prototype.html = function(html) {
+ return html;
+};
+
+Renderer.prototype.heading = function(text, level, raw) {
+ return '\n';
+};
+
+Renderer.prototype.hr = function() {
+ return this.options.xhtml ? '
\n' : '
\n';
+};
+
+Renderer.prototype.list = function(body, ordered) {
+ var type = ordered ? 'ol' : 'ul';
+ return '<' + type + '>\n' + body + '' + type + '>\n';
+};
+
+Renderer.prototype.listitem = function(text) {
+ return '' + text + '\n';
+};
+
+Renderer.prototype.paragraph = function(text) {
+ return '' + text + '
\n';
+};
+
+Renderer.prototype.table = function(header, body) {
+ return '\n'
+ + '\n'
+ + header
+ + '\n'
+ + '\n'
+ + body
+ + '\n'
+ + '
\n';
+};
+
+Renderer.prototype.tablerow = function(content) {
+ return '\n' + content + '
\n';
+};
+
+Renderer.prototype.tablecell = function(content, flags) {
+ var type = flags.header ? 'th' : 'td';
+ var tag = flags.align
+ ? '<' + type + ' style="text-align:' + flags.align + '">'
+ : '<' + type + '>';
+ return tag + content + '' + type + '>\n';
+};
+
+// span level renderer
+Renderer.prototype.strong = function(text) {
+ return '' + text + '';
+};
+
+Renderer.prototype.em = function(text) {
+ return '' + text + '';
+};
+
+Renderer.prototype.codespan = function(text) {
+ return '' + text + '
';
+};
+
+Renderer.prototype.br = function() {
+ return this.options.xhtml ? '
' : '
';
+};
+
+Renderer.prototype.del = function(text) {
+ return '' + text + '';
+};
+
+Renderer.prototype.link = function(href, title, text) {
+ if (this.options.sanitize) {
+ try {
+ var prot = decodeURIComponent(unescape(href))
+ .replace(/[^\w:]/g, '')
+ .toLowerCase();
+ } catch (e) {
+ return '';
+ }
+ if (prot.indexOf('javascript:') === 0 || prot.indexOf('vbscript:') === 0) {
+ return '';
+ }
+ }
+ var out = '' + text + '';
+ return out;
+};
+
+Renderer.prototype.image = function(href, title, text) {
+ var out = '' : '>';
+ return out;
+};
+
+Renderer.prototype.text = function(text) {
+ return text;
+};
+
+/**
+ * Parsing & Compiling
+ */
+
+function Parser(options) {
+ this.tokens = [];
+ this.token = null;
+ this.options = options || marked.defaults;
+ this.options.renderer = this.options.renderer || new Renderer;
+ this.renderer = this.options.renderer;
+ this.renderer.options = this.options;
+}
+
+/**
+ * Static Parse Method
+ */
+
+Parser.parse = function(src, options, renderer) {
+ var parser = new Parser(options, renderer);
+ return parser.parse(src);
+};
+
+/**
+ * Parse Loop
+ */
+
+Parser.prototype.parse = function(src) {
+ this.inline = new InlineLexer(src.links, this.options, this.renderer);
+ this.tokens = src.reverse();
+
+ var out = '';
+ while (this.next()) {
+ out += this.tok();
+ }
+
+ return out;
+};
+
+/**
+ * Next Token
+ */
+
+Parser.prototype.next = function() {
+ return this.token = this.tokens.pop();
+};
+
+/**
+ * Preview Next Token
+ */
+
+Parser.prototype.peek = function() {
+ return this.tokens[this.tokens.length - 1] || 0;
+};
+
+/**
+ * Parse Text Tokens
+ */
+
+Parser.prototype.parseText = function() {
+ var body = this.token.text;
+
+ while (this.peek().type === 'text') {
+ body += '\n' + this.next().text;
+ }
+
+ return this.inline.output(body);
+};
+
+/**
+ * Parse Current Token
+ */
+
+Parser.prototype.tok = function() {
+ switch (this.token.type) {
+ case 'space': {
+ return '';
+ }
+ case 'hr': {
+ return this.renderer.hr();
+ }
+ case 'heading': {
+ return this.renderer.heading(
+ this.inline.output(this.token.text),
+ this.token.depth,
+ this.token.text);
+ }
+ case 'code': {
+ return this.renderer.code(this.token.text,
+ this.token.lang,
+ this.token.escaped);
+ }
+ case 'table': {
+ var header = ''
+ , body = ''
+ , i
+ , row
+ , cell
+ , flags
+ , j;
+
+ // header
+ cell = '';
+ for (i = 0; i < this.token.header.length; i++) {
+ flags = { header: true, align: this.token.align[i] };
+ cell += this.renderer.tablecell(
+ this.inline.output(this.token.header[i]),
+ { header: true, align: this.token.align[i] }
+ );
+ }
+ header += this.renderer.tablerow(cell);
+
+ for (i = 0; i < this.token.cells.length; i++) {
+ row = this.token.cells[i];
+
+ cell = '';
+ for (j = 0; j < row.length; j++) {
+ cell += this.renderer.tablecell(
+ this.inline.output(row[j]),
+ { header: false, align: this.token.align[j] }
+ );
+ }
+
+ body += this.renderer.tablerow(cell);
+ }
+ return this.renderer.table(header, body);
+ }
+ case 'blockquote_start': {
+ var body = '';
+
+ while (this.next().type !== 'blockquote_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.blockquote(body);
+ }
+ case 'list_start': {
+ var body = ''
+ , ordered = this.token.ordered;
+
+ while (this.next().type !== 'list_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.list(body, ordered);
+ }
+ case 'list_item_start': {
+ var body = '';
+
+ while (this.next().type !== 'list_item_end') {
+ body += this.token.type === 'text'
+ ? this.parseText()
+ : this.tok();
+ }
+
+ return this.renderer.listitem(body);
+ }
+ case 'loose_item_start': {
+ var body = '';
+
+ while (this.next().type !== 'list_item_end') {
+ body += this.tok();
+ }
+
+ return this.renderer.listitem(body);
+ }
+ case 'html': {
+ var html = !this.token.pre && !this.options.pedantic
+ ? this.inline.output(this.token.text)
+ : this.token.text;
+ return this.renderer.html(html);
+ }
+ case 'paragraph': {
+ return this.renderer.paragraph(this.inline.output(this.token.text));
+ }
+ case 'text': {
+ return this.renderer.paragraph(this.parseText());
+ }
+ }
+};
+
+/**
+ * Helpers
+ */
+
+function escape(html, encode) {
+ return html
+ .replace(!encode ? /&(?!#?\w+;)/g : /&/g, '&')
+ .replace(//g, '>')
+ .replace(/"/g, '"')
+ .replace(/'/g, ''');
+}
+
+function unescape(html) {
+ return html.replace(/&([#\w]+);/g, function(_, n) {
+ n = n.toLowerCase();
+ if (n === 'colon') return ':';
+ if (n.charAt(0) === '#') {
+ return n.charAt(1) === 'x'
+ ? String.fromCharCode(parseInt(n.substring(2), 16))
+ : String.fromCharCode(+n.substring(1));
+ }
+ return '';
+ });
+}
+
+function replace(regex, opt) {
+ regex = regex.source;
+ opt = opt || '';
+ return function self(name, val) {
+ if (!name) return new RegExp(regex, opt);
+ val = val.source || val;
+ val = val.replace(/(^|[^\[])\^/g, '$1');
+ regex = regex.replace(name, val);
+ return self;
+ };
+}
+
+function noop() {}
+noop.exec = noop;
+
+function merge(obj) {
+ var i = 1
+ , target
+ , key;
+
+ for (; i < arguments.length; i++) {
+ target = arguments[i];
+ for (key in target) {
+ if (Object.prototype.hasOwnProperty.call(target, key)) {
+ obj[key] = target[key];
+ }
+ }
+ }
+
+ return obj;
+}
+
+
+/**
+ * Marked
+ */
+
+function marked(src, opt, callback) {
+ if (callback || typeof opt === 'function') {
+ if (!callback) {
+ callback = opt;
+ opt = null;
+ }
+
+ opt = merge({}, marked.defaults, opt || {});
+
+ var highlight = opt.highlight
+ , tokens
+ , pending
+ , i = 0;
+
+ try {
+ tokens = Lexer.lex(src, opt)
+ } catch (e) {
+ return callback(e);
+ }
+
+ pending = tokens.length;
+
+ var done = function(err) {
+ if (err) {
+ opt.highlight = highlight;
+ return callback(err);
+ }
+
+ var out;
+
+ try {
+ out = Parser.parse(tokens, opt);
+ } catch (e) {
+ err = e;
+ }
+
+ opt.highlight = highlight;
+
+ return err
+ ? callback(err)
+ : callback(null, out);
+ };
+
+ if (!highlight || highlight.length < 3) {
+ return done();
+ }
+
+ delete opt.highlight;
+
+ if (!pending) return done();
+
+ for (; i < tokens.length; i++) {
+ (function(token) {
+ if (token.type !== 'code') {
+ return --pending || done();
+ }
+ return highlight(token.text, token.lang, function(err, code) {
+ if (err) return done(err);
+ if (code == null || code === token.text) {
+ return --pending || done();
+ }
+ token.text = code;
+ token.escaped = true;
+ --pending || done();
+ });
+ })(tokens[i]);
+ }
+
+ return;
+ }
+ try {
+ if (opt) opt = merge({}, marked.defaults, opt);
+ return Parser.parse(Lexer.lex(src, opt), opt);
+ } catch (e) {
+ e.message += '\nPlease report this to https://github.com/chjj/marked.';
+ if ((opt || marked.defaults).silent) {
+ return 'An error occured:
'
+ + escape(e.message + '', true)
+ + '
';
+ }
+ throw e;
+ }
+}
+
+/**
+ * Options
+ */
+
+marked.options =
+marked.setOptions = function(opt) {
+ merge(marked.defaults, opt);
+ return marked;
+};
+
+marked.defaults = {
+ gfm: true,
+ tables: true,
+ breaks: false,
+ pedantic: false,
+ sanitize: false,
+ sanitizer: null,
+ mangle: true,
+ smartLists: false,
+ silent: false,
+ highlight: null,
+ langPrefix: 'lang-',
+ smartypants: false,
+ headerPrefix: '',
+ renderer: new Renderer,
+ xhtml: false
+};
+
+/**
+ * Expose
+ */
+
+marked.Parser = Parser;
+marked.parser = Parser.parse;
+
+marked.Renderer = Renderer;
+
+marked.Lexer = Lexer;
+marked.lexer = Lexer.lex;
+
+marked.InlineLexer = InlineLexer;
+marked.inlineLexer = InlineLexer.output;
+
+marked.parse = marked;
+
+if (typeof module !== 'undefined' && typeof exports === 'object') {
+ module.exports = marked;
+} else if (typeof define === 'function' && define.amd) {
+ define(function() { return marked; });
+} else {
+ this.marked = marked;
+}
+
+}).call(function() {
+ return this || (typeof window !== 'undefined' ? window : global);
+}());
+
+}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
+},{}],12:[function(require,module,exports){
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+var CodeMirror = require("codemirror");
+
+CodeMirror.commands.tabAndIndentMarkdownList = function (cm) {
+ var ranges = cm.listSelections();
+ var pos = ranges[0].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+
+ if (inList) {
+ cm.execCommand("indentMore");
+ return;
+ }
+
+ if (cm.options.indentWithTabs) {
+ cm.execCommand("insertTab");
+ }
+ else {
+ var spaces = Array(cm.options.tabSize + 1).join(" ");
+ cm.replaceSelection(spaces);
+ }
+};
+
+CodeMirror.commands.shiftTabAndUnindentMarkdownList = function (cm) {
+ var ranges = cm.listSelections();
+ var pos = ranges[0].head;
+ var eolState = cm.getStateAfter(pos.line);
+ var inList = eolState.list !== false;
+
+ if (inList) {
+ cm.execCommand("indentLess");
+ return;
+ }
+
+ if (cm.options.indentWithTabs) {
+ cm.execCommand("insertTab");
+ }
+ else {
+ var spaces = Array(cm.options.tabSize + 1).join(" ");
+ cm.replaceSelection(spaces);
+ }
+};
+
+},{"codemirror":6}],13:[function(require,module,exports){
+/*global require,module*/
+"use strict";
+var CodeMirror = require("codemirror");
+require("codemirror/addon/edit/continuelist.js");
+require("./codemirror/tablist");
+require("codemirror/addon/display/fullscreen.js");
+require("codemirror/mode/markdown/markdown.js");
+require("codemirror/addon/mode/overlay.js");
+require("codemirror/mode/gfm/gfm.js");
+require("codemirror/mode/xml/xml.js");
+require("spell-checker");
+var marked = require("marked");
+
+
+var isMac = /Mac/.test(navigator.platform);
+
+var shortcuts = {
+ "Cmd-B": toggleBold,
+ "Cmd-I": toggleItalic,
+ "Cmd-K": drawLink,
+ "Cmd-H": toggleHeadingSmaller,
+ "Shift-Cmd-H": toggleHeadingBigger,
+ "Cmd-Alt-I": drawImage,
+ "Cmd-'": toggleBlockquote,
+ "Cmd-Alt-L": toggleOrderedList,
+ "Cmd-L": toggleUnorderedList,
+ "Cmd-Alt-C": toggleCodeBlock,
+ "Cmd-P": togglePreview
+};
+
+
+/**
+ * Fix shortcut. Mac use Command, others use Ctrl.
+ */
+function fixShortcut(name) {
+ if(isMac) {
+ name = name.replace("Ctrl", "Cmd");
+ } else {
+ name = name.replace("Cmd", "Ctrl");
+ }
+ return name;
+}
+
+
+/**
+ * Create icon element for toolbar.
+ */
+function createIcon(options, enableTooltips) {
+ options = options || {};
+ var el = document.createElement("a");
+ enableTooltips = (enableTooltips == undefined) ? true : enableTooltips;
+
+ if(options.title && enableTooltips) {
+ el.title = options.title;
+
+ if(isMac) {
+ el.title = el.title.replace("Ctrl", "⌘");
+ el.title = el.title.replace("Alt", "⌥");
+ }
+ }
+
+ el.className = options.className;
+ return el;
+}
+
+function createSep() {
+ var el = document.createElement("i");
+ el.className = "separator";
+ el.innerHTML = "|";
+ return el;
+}
+
+
+/**
+ * The state of CodeMirror at the given position.
+ */
+function getState(cm, pos) {
+ pos = pos || cm.getCursor("start");
+ var stat = cm.getTokenAt(pos);
+ if(!stat.type) return {};
+
+ var types = stat.type.split(" ");
+
+ var ret = {},
+ data, text;
+ for(var i = 0; i < types.length; i++) {
+ data = types[i];
+ if(data === "strong") {
+ ret.bold = true;
+ } else if(data === "variable-2") {
+ text = cm.getLine(pos.line);
+ if(/^\s*\d+\.\s/.test(text)) {
+ ret["ordered-list"] = true;
+ } else {
+ ret["unordered-list"] = true;
+ }
+ } else if(data === "atom") {
+ ret.quote = true;
+ } else if(data === "em") {
+ ret.italic = true;
+ } else if(data === "quote") {
+ ret.quote = true;
+ } else if(data === "strikethrough") {
+ ret.strikethrough = true;
+ } else if(data === "comment") {
+ ret.code = true;
+ }
+ }
+ return ret;
+}
+
+
+// Saved overflow setting
+var saved_overflow = "";
+
+/**
+ * Toggle full screen of the editor.
+ */
+function toggleFullScreen(editor) {
+ // Set fullscreen
+ var cm = editor.codemirror;
+ cm.setOption("fullScreen", !cm.getOption("fullScreen"));
+
+
+ // Prevent scrolling on body during fullscreen active
+ if(cm.getOption("fullScreen")) {
+ saved_overflow = document.body.style.overflow;
+ document.body.style.overflow = "hidden";
+ } else {
+ document.body.style.overflow = saved_overflow;
+ }
+
+
+ // Update toolbar class
+ var wrap = cm.getWrapperElement();
+
+ if(!/fullscreen/.test(wrap.previousSibling.className)) {
+ wrap.previousSibling.className += " fullscreen";
+ } else {
+ wrap.previousSibling.className = wrap.previousSibling.className.replace(/\s*fullscreen\b/, "");
+ }
+
+
+ // Update toolbar button
+ var toolbarButton = editor.toolbarElements.fullscreen;
+
+ if(!/active/.test(toolbarButton.className)) {
+ toolbarButton.className += " active";
+ } else {
+ toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
+ }
+
+
+ // Hide side by side if needed
+ var sidebyside = cm.getWrapperElement().nextSibling;
+ if(/editor-preview-active-side/.test(sidebyside.className))
+ toggleSideBySide(editor);
+}
+
+
+/**
+ * Action for toggling bold.
+ */
+function toggleBold(editor) {
+ _toggleBlock(editor, "bold", "**");
+}
+
+
+/**
+ * Action for toggling italic.
+ */
+function toggleItalic(editor) {
+ _toggleBlock(editor, "italic", "*");
+}
+
+
+/**
+ * Action for toggling strikethrough.
+ */
+function toggleStrikethrough(editor) {
+ _toggleBlock(editor, "strikethrough", "~~");
+}
+
+/**
+ * Action for toggling code block.
+ */
+function toggleCodeBlock(editor) {
+ _toggleBlock(editor, "code", "```\r\n", "\r\n```");
+}
+
+/**
+ * Action for toggling blockquote.
+ */
+function toggleBlockquote(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "quote");
+}
+
+/**
+ * Action for toggling heading size: normal -> h1 -> h2 -> h3 -> h4 -> h5 -> h6 -> normal
+ */
+function toggleHeadingSmaller(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, "smaller");
+}
+
+/**
+ * Action for toggling heading size: normal -> h6 -> h5 -> h4 -> h3 -> h2 -> h1 -> normal
+ */
+function toggleHeadingBigger(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, "bigger");
+}
+
+/**
+ * Action for toggling heading size 1
+ */
+function toggleHeading1(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 1);
+}
+
+/**
+ * Action for toggling heading size 2
+ */
+function toggleHeading2(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 2);
+}
+
+/**
+ * Action for toggling heading size 3
+ */
+function toggleHeading3(editor) {
+ var cm = editor.codemirror;
+ _toggleHeading(cm, undefined, 3);
+}
+
+
+/**
+ * Action for toggling ul.
+ */
+function toggleUnorderedList(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "unordered-list");
+}
+
+
+/**
+ * Action for toggling ol.
+ */
+function toggleOrderedList(editor) {
+ var cm = editor.codemirror;
+ _toggleLine(cm, "ordered-list");
+}
+
+
+/**
+ * Action for drawing a link.
+ */
+function drawLink(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ _replaceSelection(cm, stat.link, "[", "](http://)");
+}
+
+
+/**
+ * Action for drawing an img.
+ */
+function drawImage(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ _replaceSelection(cm, stat.image, "![](http://", ")");
+}
+
+
+/**
+ * Action for drawing a horizontal rule.
+ */
+function drawHorizontalRule(editor) {
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+ _replaceSelection(cm, stat.image, "", "\n\n-----\n\n");
+}
+
+
+/**
+ * Undo action.
+ */
+function undo(editor) {
+ var cm = editor.codemirror;
+ cm.undo();
+ cm.focus();
+}
+
+
+/**
+ * Redo action.
+ */
+function redo(editor) {
+ var cm = editor.codemirror;
+ cm.redo();
+ cm.focus();
+}
+
+
+/**
+ * Toggle side by side preview
+ */
+function toggleSideBySide(editor) {
+ var cm = editor.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+ var toolbarButton = editor.toolbarElements["side-by-side"];
+
+ if(/editor-preview-active-side/.test(preview.className)) {
+ preview.className = preview.className.replace(
+ /\s*editor-preview-active-side\s*/g, ""
+ );
+ toolbarButton.className = toolbarButton.className.replace(/\s*active\s*/g, "");
+ wrapper.className = wrapper.className.replace(/\s*CodeMirror-sided\s*/g, " ");
+ } else {
+ /* When the preview button is clicked for the first time,
+ * give some time for the transition from editor.css to fire and the view to slide from right to left,
+ * instead of just appearing.
+ */
+ setTimeout(function() {
+ if(!cm.getOption("fullScreen"))
+ toggleFullScreen(editor);
+ preview.className += " editor-preview-active-side";
+ }, 1);
+ toolbarButton.className += " active";
+ wrapper.className += " CodeMirror-sided";
+ }
+
+ // Hide normal preview if active
+ var previewNormal = wrapper.lastChild;
+ if(/editor-preview-active/.test(previewNormal.className)) {
+ previewNormal.className = previewNormal.className.replace(
+ /\s*editor-preview-active\s*/g, ""
+ );
+ var toolbar = editor.toolbarElements.preview;
+ var toolbar_div = wrapper.previousSibling;
+ toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
+ toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
+ }
+
+ // Start preview with the current text
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+
+ // Updates preview
+ cm.on("update", function() {
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+ });
+}
+
+
+/**
+ * Preview action.
+ */
+function togglePreview(editor) {
+ var cm = editor.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var toolbar_div = wrapper.previousSibling;
+ var toolbar = editor.toolbarElements.preview;
+ var preview = wrapper.lastChild;
+ if(!preview || !/editor-preview/.test(preview.className)) {
+ preview = document.createElement("div");
+ preview.className = "editor-preview";
+ wrapper.appendChild(preview);
+ }
+ if(/editor-preview-active/.test(preview.className)) {
+ preview.className = preview.className.replace(
+ /\s*editor-preview-active\s*/g, ""
+ );
+ toolbar.className = toolbar.className.replace(/\s*active\s*/g, "");
+ toolbar_div.className = toolbar_div.className.replace(/\s*disabled-for-preview*/g, "");
+ } else {
+ /* When the preview button is clicked for the first time,
+ * give some time for the transition from editor.css to fire and the view to slide from right to left,
+ * instead of just appearing.
+ */
+ setTimeout(function() {
+ preview.className += " editor-preview-active";
+ }, 1);
+ toolbar.className += " active";
+ toolbar_div.className += " disabled-for-preview";
+ }
+ preview.innerHTML = editor.options.previewRender(editor.value(), preview);
+
+ // Turn off side by side if needed
+ var sidebyside = cm.getWrapperElement().nextSibling;
+ if(/editor-preview-active-side/.test(sidebyside.className))
+ toggleSideBySide(editor);
+}
+
+function _replaceSelection(cm, active, start, end) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var text;
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ if(active) {
+ text = cm.getLine(startPoint.line);
+ start = text.slice(0, startPoint.ch);
+ end = text.slice(startPoint.ch);
+ cm.replaceRange(start + end, {
+ line: startPoint.line,
+ ch: 0
+ });
+ } else {
+ text = cm.getSelection();
+ cm.replaceSelection(start + text + end);
+
+ startPoint.ch += start.length;
+ if(startPoint !== endPoint) {
+ endPoint.ch += start.length;
+ }
+ }
+ cm.setSelection(startPoint, endPoint);
+ cm.focus();
+}
+
+
+function _toggleHeading(cm, direction, size) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ for(var i = startPoint.line; i <= endPoint.line; i++) {
+ (function(i) {
+ var text = cm.getLine(i);
+ var currHeadingLevel = text.search(/[^#]/);
+
+ if(direction !== undefined) {
+ if(currHeadingLevel <= 0) {
+ if(direction == "bigger") {
+ text = "###### " + text;
+ } else {
+ text = "# " + text;
+ }
+ } else if(currHeadingLevel == 6 && direction == "smaller") {
+ text = text.substr(7);
+ } else if(currHeadingLevel == 1 && direction == "bigger") {
+ text = text.substr(2);
+ } else {
+ if(direction == "bigger") {
+ text = text.substr(1);
+ } else {
+ text = "#" + text;
+ }
+ }
+ } else {
+ if(size == 1) {
+ if(currHeadingLevel <= 0) {
+ text = "# " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "# " + text.substr(currHeadingLevel + 1);
+ }
+ } else if(size == 2) {
+ if(currHeadingLevel <= 0) {
+ text = "## " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "## " + text.substr(currHeadingLevel + 1);
+ }
+ } else {
+ if(currHeadingLevel <= 0) {
+ text = "### " + text;
+ } else if(currHeadingLevel == size) {
+ text = text.substr(currHeadingLevel + 1);
+ } else {
+ text = "### " + text.substr(currHeadingLevel + 1);
+ }
+ }
+ }
+
+ cm.replaceRange(text, {
+ line: i,
+ ch: 0
+ }, {
+ line: i,
+ ch: 99999999999999
+ });
+ })(i);
+ }
+ cm.focus();
+}
+
+
+function _toggleLine(cm, name) {
+ if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
+ return;
+
+ var stat = getState(cm);
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+ var repl = {
+ "quote": /^(\s*)\>\s+/,
+ "unordered-list": /^(\s*)(\*|\-|\+)\s+/,
+ "ordered-list": /^(\s*)\d+\.\s+/
+ };
+ var map = {
+ "quote": "> ",
+ "unordered-list": "* ",
+ "ordered-list": "1. "
+ };
+ for(var i = startPoint.line; i <= endPoint.line; i++) {
+ (function(i) {
+ var text = cm.getLine(i);
+ if(stat[name]) {
+ text = text.replace(repl[name], "$1");
+ } else {
+ text = map[name] + text;
+ }
+ cm.replaceRange(text, {
+ line: i,
+ ch: 0
+ }, {
+ line: i,
+ ch: 99999999999999
+ });
+ })(i);
+ }
+ cm.focus();
+}
+
+function _toggleBlock(editor, type, start_chars, end_chars) {
+ if(/editor-preview-active/.test(editor.codemirror.getWrapperElement().lastChild.className))
+ return;
+
+ end_chars = (typeof end_chars === "undefined") ? start_chars : end_chars;
+ var cm = editor.codemirror;
+ var stat = getState(cm);
+
+ var text;
+ var start = start_chars;
+ var end = end_chars;
+
+ var startPoint = cm.getCursor("start");
+ var endPoint = cm.getCursor("end");
+
+ if(stat[type]) {
+ text = cm.getLine(startPoint.line);
+ start = text.slice(0, startPoint.ch);
+ end = text.slice(startPoint.ch);
+ if(type == "bold") {
+ start = start.replace(/(\*\*|__)(?![\s\S]*(\*\*|__))/, "");
+ end = end.replace(/(\*\*|__)/, "");
+ } else if(type == "italic") {
+ start = start.replace(/(\*|_)(?![\s\S]*(\*|_))/, "");
+ end = end.replace(/(\*|_)/, "");
+ } else if(type == "strikethrough") {
+ start = start.replace(/(\*\*|~~)(?![\s\S]*(\*\*|~~))/, "");
+ end = end.replace(/(\*\*|~~)/, "");
+ }
+ cm.replaceRange(start + end, {
+ line: startPoint.line,
+ ch: 0
+ }, {
+ line: startPoint.line,
+ ch: 99999999999999
+ });
+
+ if(type == "bold" || type == "strikethrough") {
+ startPoint.ch -= 2;
+ if(startPoint !== endPoint) {
+ endPoint.ch -= 2;
+ }
+ } else if(type == "italic") {
+ startPoint.ch -= 1;
+ if(startPoint !== endPoint) {
+ endPoint.ch -= 1;
+ }
+ }
+ } else {
+ text = cm.getSelection();
+ if(type == "bold") {
+ text = text.split("**").join("");
+ text = text.split("__").join("");
+ } else if(type == "italic") {
+ text = text.split("*").join("");
+ text = text.split("_").join("");
+ } else if(type == "strikethrough") {
+ text = text.split("~~").join("");
+ }
+ cm.replaceSelection(start + text + end);
+
+ startPoint.ch += start_chars.length;
+ endPoint.ch = startPoint.ch + text.length;
+ }
+
+ cm.setSelection(startPoint, endPoint);
+ cm.focus();
+}
+
+
+/* The right word count in respect for CJK. */
+function wordCount(data) {
+ var pattern = /[a-zA-Z0-9_\u0392-\u03c9]+|[\u4E00-\u9FFF\u3400-\u4dbf\uf900-\ufaff\u3040-\u309f\uac00-\ud7af]+/g;
+ var m = data.match(pattern);
+ var count = 0;
+ if(m === null) return count;
+ for(var i = 0; i < m.length; i++) {
+ if(m[i].charCodeAt(0) >= 0x4E00) {
+ count += m[i].length;
+ } else {
+ count += 1;
+ }
+ }
+ return count;
+}
+
+
+var toolbarBuiltInButtons = {
+ "bold": {
+ name: "bold",
+ action: toggleBold,
+ className: "fa fa-bold",
+ title: "Bold (Ctrl+B)"
+ },
+ "italic": {
+ name: "italic",
+ action: toggleItalic,
+ className: "fa fa-italic",
+ title: "Italic (Ctrl+I)"
+ },
+ "strikethrough": {
+ name: "strikethrough",
+ action: toggleStrikethrough,
+ className: "fa fa-strikethrough",
+ title: "Strikethrough"
+ },
+ "heading": {
+ name: "heading",
+ action: toggleHeadingSmaller,
+ className: "fa fa-header",
+ title: "Heading (Ctrl+H)"
+ },
+ "heading-smaller": {
+ name: "heading-smaller",
+ action: toggleHeadingSmaller,
+ className: "fa fa-header fa-header-x fa-header-smaller",
+ title: "Smaller Heading (Ctrl+H)"
+ },
+ "heading-bigger": {
+ name: "heading-bigger",
+ action: toggleHeadingBigger,
+ className: "fa fa-header fa-header-x fa-header-bigger",
+ title: "Bigger Heading (Shift+Ctrl+H)"
+ },
+ "heading-1": {
+ name: "heading-1",
+ action: toggleHeading1,
+ className: "fa fa-header fa-header-x fa-header-1",
+ title: "Big Heading"
+ },
+ "heading-2": {
+ name: "heading-2",
+ action: toggleHeading2,
+ className: "fa fa-header fa-header-x fa-header-2",
+ title: "Medium Heading"
+ },
+ "heading-3": {
+ name: "heading-3",
+ action: toggleHeading3,
+ className: "fa fa-header fa-header-x fa-header-3",
+ title: "Small Heading"
+ },
+ "code": {
+ name: "code",
+ action: toggleCodeBlock,
+ className: "fa fa-code",
+ title: "Code (Ctrl+Alt+C)"
+ },
+ "quote": {
+ name: "quote",
+ action: toggleBlockquote,
+ className: "fa fa-quote-left",
+ title: "Quote (Ctrl+')"
+ },
+ "unordered-list": {
+ name: "unordered-list",
+ action: toggleUnorderedList,
+ className: "fa fa-list-ul",
+ title: "Generic List (Ctrl+L)"
+ },
+ "ordered-list": {
+ name: "ordered-list",
+ action: toggleOrderedList,
+ className: "fa fa-list-ol",
+ title: "Numbered List (Ctrl+Alt+L)"
+ },
+ "link": {
+ name: "link",
+ action: drawLink,
+ className: "fa fa-link",
+ title: "Create Link (Ctrl+K)"
+ },
+ "image": {
+ name: "image",
+ action: drawImage,
+ className: "fa fa-picture-o",
+ title: "Insert Image (Ctrl+Alt+I)"
+ },
+ "horizontal-rule": {
+ name: "horizontal-rule",
+ action: drawHorizontalRule,
+ className: "fa fa-minus",
+ title: "Insert Horizontal Line"
+ },
+ "preview": {
+ name: "preview",
+ action: togglePreview,
+ className: "fa fa-eye no-disable",
+ title: "Toggle Preview (Ctrl+P)"
+ },
+ "side-by-side": {
+ name: "side-by-side",
+ action: toggleSideBySide,
+ className: "fa fa-columns no-disable no-mobile",
+ title: "Toggle Side by Side (F9)"
+ },
+ "fullscreen": {
+ name: "fullscreen",
+ action: toggleFullScreen,
+ className: "fa fa-arrows-alt no-disable no-mobile",
+ title: "Toggle Fullscreen (F11)"
+ },
+ "guide": {
+ name: "guide",
+ action: "http://nextstepwebs.github.io/simplemde-markdown-editor/markdown-guide",
+ className: "fa fa-question-circle",
+ title: "Markdown Guide"
+ }
+};
+
+
+/**
+ * Interface of SimpleMDE.
+ */
+function SimpleMDE(options) {
+ // Handle options parameter
+ options = options || {};
+
+
+ // Used later to refer to it"s parent
+ options.parent = this;
+
+
+ // Check if Font Awesome needs to be auto downloaded
+ var autoDownloadFA = true;
+
+ if(options.autoDownloadFontAwesome === false) {
+ autoDownloadFA = false;
+ }
+
+ if(options.autoDownloadFontAwesome !== true) {
+ var styleSheets = document.styleSheets;
+ for(var i = 0; i < styleSheets.length; i++) {
+ if(!styleSheets[i].href)
+ continue;
+
+ if(styleSheets[i].href.indexOf("//maxcdn.bootstrapcdn.com/font-awesome/") > -1) {
+ autoDownloadFA = false;
+ }
+ }
+ }
+
+ if(autoDownloadFA) {
+ var link = document.createElement("link");
+ link.rel = "stylesheet";
+ link.href = "https://maxcdn.bootstrapcdn.com/font-awesome/latest/css/font-awesome.min.css";
+ document.getElementsByTagName("head")[0].appendChild(link);
+ }
+
+
+ // Find the textarea to use
+ if(options.element) {
+ this.element = options.element;
+ } else if(options.element === null) {
+ // This means that the element option was specified, but no element was found
+ console.log("SimpleMDE: Error. No element was found.");
+ return;
+ }
+
+
+ // Handle toolbar and status bar
+ if(options.toolbar !== false)
+ options.toolbar = options.toolbar || SimpleMDE.toolbar;
+
+ if(!options.hasOwnProperty("status")) {
+ options.status = ["autosave", "lines", "words", "cursor"];
+ }
+
+
+ // Add default preview rendering function
+ if(!options.previewRender) {
+ options.previewRender = function(plainText) {
+ // Note: "this" refers to the options object
+ return this.parent.markdown(plainText);
+ };
+ }
+
+
+ // Set default options for parsing config
+ options.parsingConfig = options.parsingConfig || {};
+
+
+ // Update this options
+ this.options = options;
+
+
+ // Auto render
+ this.render();
+
+
+ // The codemirror component is only available after rendering
+ // so, the setter for the initialValue can only run after
+ // the element has been rendered
+ if(options.initialValue) {
+ this.value(options.initialValue);
+ }
+}
+
+/**
+ * Default toolbar elements.
+ */
+SimpleMDE.toolbar = ["bold", "italic", "heading", "|", "quote", "unordered-list", "ordered-list", "|", "link", "image", "|", "preview", "side-by-side", "fullscreen", "guide"];
+
+/**
+ * Default markdown render.
+ */
+SimpleMDE.prototype.markdown = function(text) {
+ if(marked) {
+ // Initialize
+ var markedOptions = {};
+
+
+ // Update options
+ if(this.options && this.options.renderingConfig && this.options.renderingConfig.singleLineBreaks !== false) {
+ markedOptions.breaks = true;
+ }
+
+ if(this.options && this.options.renderingConfig && this.options.renderingConfig.codeSyntaxHighlighting === true && window.hljs) {
+ markedOptions.highlight = function(code) {
+ return window.hljs.highlightAuto(code).value;
+ };
+ }
+
+
+ // Set options
+ marked.setOptions(markedOptions);
+
+
+ // Return
+ return marked(text);
+ }
+};
+
+/**
+ * Render editor to the given element.
+ */
+SimpleMDE.prototype.render = function(el) {
+ if(!el) {
+ el = this.element || document.getElementsByTagName("textarea")[0];
+ }
+
+ if(this._rendered && this._rendered === el) {
+ // Already rendered.
+ return;
+ }
+
+ this.element = el;
+ var options = this.options;
+
+ var self = this;
+ var keyMaps = {};
+
+ for(var key in shortcuts) {
+ (function(key) {
+ keyMaps[fixShortcut(key)] = function() {
+ shortcuts[key](self);
+ };
+ })(key);
+ }
+
+ keyMaps["Enter"] = "newlineAndIndentContinueMarkdownList";
+ keyMaps["Tab"] = "tabAndIndentMarkdownList";
+ keyMaps["Shift-Tab"] = "shiftTabAndUnindentMarkdownList";
+ keyMaps["F11"] = function() {
+ toggleFullScreen(self);
+ };
+ keyMaps["F9"] = function() {
+ toggleSideBySide(self);
+ };
+ keyMaps["Esc"] = function(cm) {
+ if(cm.getOption("fullScreen")) toggleFullScreen(self);
+ };
+
+ var mode, backdrop;
+ if(options.spellChecker !== false) {
+ mode = "spell-checker";
+ backdrop = options.parsingConfig;
+ backdrop.name = "gfm";
+ backdrop.gitHubSpice = false;
+ } else {
+ mode = options.parsingConfig;
+ mode.name = "gfm";
+ mode.gitHubSpice = false;
+ }
+
+ this.codemirror = CodeMirror.fromTextArea(el, {
+ mode: mode,
+ backdrop: backdrop,
+ theme: "paper",
+ tabSize: (options.tabSize != undefined) ? options.tabSize : 2,
+ indentUnit: (options.tabSize != undefined) ? options.tabSize : 2,
+ indentWithTabs: (options.indentWithTabs === false) ? false : true,
+ lineNumbers: false,
+ autofocus: (options.autofocus === true) ? true : false,
+ extraKeys: keyMaps,
+ lineWrapping: (options.lineWrapping === false) ? false : true,
+ allowDropFileTypes: ["text/plain"]
+ });
+
+ if(options.toolbar !== false) {
+ this.createToolbar();
+ }
+ if(options.status !== false) {
+ this.createStatusbar();
+ }
+ if(options.autosave != undefined && options.autosave.enabled === true) {
+ this.autosave();
+ }
+
+ this.createSideBySide();
+
+ this._rendered = this.element;
+};
+
+SimpleMDE.prototype.autosave = function() {
+ var content = this.value();
+ var simplemde = this;
+
+ if(this.options.autosave.unique_id == undefined || this.options.autosave.unique_id == "") {
+ console.log("SimpleMDE: You must set a unique_id to use the autosave feature");
+ return;
+ }
+
+ if(simplemde.element.form != null && simplemde.element.form != undefined) {
+ simplemde.element.form.addEventListener("submit", function() {
+ localStorage.setItem(simplemde.options.autosave.unique_id, "");
+ });
+ }
+
+ if(this.options.autosave.loaded !== true) {
+ if(localStorage.getItem(this.options.autosave.unique_id) != null)
+ this.codemirror.setValue(localStorage.getItem(this.options.autosave.unique_id));
+
+ this.options.autosave.loaded = true;
+ }
+
+ if(localStorage) {
+ localStorage.setItem(this.options.autosave.unique_id, content);
+ }
+
+ var el = document.getElementById("autosaved");
+ if(el != null && el != undefined && el != "") {
+ var d = new Date();
+ var hh = d.getHours();
+ var m = d.getMinutes();
+ var dd = "am";
+ var h = hh;
+ if(h >= 12) {
+ h = hh - 12;
+ dd = "pm";
+ }
+ if(h == 0) {
+ h = 12;
+ }
+ m = m < 10 ? "0" + m : m;
+
+ el.innerHTML = "Autosaved: " + h + ":" + m + " " + dd;
+ }
+
+ setTimeout(function() {
+ simplemde.autosave();
+ }, this.options.autosave.delay || 10000);
+};
+
+SimpleMDE.prototype.createSideBySide = function() {
+ var cm = this.codemirror;
+ var wrapper = cm.getWrapperElement();
+ var preview = wrapper.nextSibling;
+
+ if(!preview || !/editor-preview-side/.test(preview.className)) {
+ preview = document.createElement("div");
+ preview.className = "editor-preview-side";
+ wrapper.parentNode.insertBefore(preview, wrapper.nextSibling);
+ }
+
+ // Syncs scroll editor -> preview
+ var cScroll = false;
+ var pScroll = false;
+ cm.on("scroll", function(v) {
+ if(cScroll) {
+ cScroll = false;
+ return;
+ }
+ pScroll = true;
+ var height = v.getScrollInfo().height - v.getScrollInfo().clientHeight;
+ var ratio = parseFloat(v.getScrollInfo().top) / height;
+ var move = (preview.scrollHeight - preview.clientHeight) * ratio;
+ preview.scrollTop = move;
+ });
+
+ // Syncs scroll preview -> editor
+ preview.onscroll = function() {
+ if(pScroll) {
+ pScroll = false;
+ return;
+ }
+ cScroll = true;
+ var height = preview.scrollHeight - preview.clientHeight;
+ var ratio = parseFloat(preview.scrollTop) / height;
+ var move = (cm.getScrollInfo().height - cm.getScrollInfo().clientHeight) * ratio;
+ cm.scrollTo(0, move);
+ };
+ return true;
+};
+
+SimpleMDE.prototype.createToolbar = function(items) {
+ items = items || this.options.toolbar;
+
+ if(!items || items.length === 0) {
+ return;
+ }
+ var i;
+ for(i = 0; i < items.length; i++) {
+ if(toolbarBuiltInButtons[items[i]] != undefined) {
+ items[i] = toolbarBuiltInButtons[items[i]];
+ }
+ }
+
+ var bar = document.createElement("div");
+ bar.className = "editor-toolbar";
+
+ var self = this;
+
+ var toolbar_data = {};
+ self.toolbar = items;
+
+ for(i = 0; i < items.length; i++) {
+ if(items[i].name == "guide" && self.options.toolbarGuideIcon === false)
+ continue;
+
+ if(self.options.hideIcons && self.options.hideIcons.indexOf(items[i].name) != -1)
+ continue;
+
+ (function(item) {
+ var el;
+ if(item === "|") {
+ el = createSep();
+ } else {
+ el = createIcon(item, self.options.toolbarTips);
+ }
+
+ // bind events, special for info
+ if(item.action) {
+ if(typeof item.action === "function") {
+ el.onclick = function() {
+ item.action(self);
+ };
+ } else if(typeof item.action === "string") {
+ el.href = item.action;
+ el.target = "_blank";
+ }
+ }
+ toolbar_data[item.name || item] = el;
+ bar.appendChild(el);
+ })(items[i]);
+ }
+
+ self.toolbarElements = toolbar_data;
+
+ var cm = this.codemirror;
+ cm.on("cursorActivity", function() {
+ var stat = getState(cm);
+
+ for(var key in toolbar_data) {
+ (function(key) {
+ var el = toolbar_data[key];
+ if(stat[key]) {
+ el.className += " active";
+ } else if(key != "fullscreen" && key != "side-by-side") {
+ el.className = el.className.replace(/\s*active\s*/g, "");
+ }
+ })(key);
+ }
+ });
+
+ var cmWrapper = cm.getWrapperElement();
+ cmWrapper.parentNode.insertBefore(bar, cmWrapper);
+ return bar;
+};
+
+SimpleMDE.prototype.createStatusbar = function(status) {
+ status = status || this.options.status;
+ var options = this.options;
+
+ if(!status || status.length === 0) return;
+
+ var bar = document.createElement("div");
+ bar.className = "editor-statusbar";
+
+ var pos, cm = this.codemirror;
+ for(var i = 0; i < status.length; i++) {
+ (function(name) {
+ var el = document.createElement("span");
+ el.className = name;
+ if(name === "words") {
+ el.innerHTML = "0";
+ cm.on("update", function() {
+ el.innerHTML = wordCount(cm.getValue());
+ });
+ } else if(name === "lines") {
+ el.innerHTML = "0";
+ cm.on("update", function() {
+ el.innerHTML = cm.lineCount();
+ });
+ } else if(name === "cursor") {
+ el.innerHTML = "0:0";
+ cm.on("cursorActivity", function() {
+ pos = cm.getCursor();
+ el.innerHTML = pos.line + ":" + pos.ch;
+ });
+ } else if(name === "autosave") {
+ if(options.autosave != undefined && options.autosave.enabled === true) {
+ el.setAttribute("id", "autosaved");
+ }
+ }
+ bar.appendChild(el);
+ })(status[i]);
+ }
+
+ var cmWrapper = this.codemirror.getWrapperElement();
+ cmWrapper.parentNode.insertBefore(bar, cmWrapper.nextSibling);
+ return bar;
+};
+
+/**
+ * Get or set the text content.
+ */
+SimpleMDE.prototype.value = function(val) {
+ if(val === undefined) {
+ return this.codemirror.getValue();
+ } else {
+ this.codemirror.getDoc().setValue(val);
+ return this;
+ }
+};
+
+
+/**
+ * Bind static methods for exports.
+ */
+SimpleMDE.toggleBold = toggleBold;
+SimpleMDE.toggleItalic = toggleItalic;
+SimpleMDE.toggleStrikethrough = toggleStrikethrough;
+SimpleMDE.toggleBlockquote = toggleBlockquote;
+SimpleMDE.toggleHeadingSmaller = toggleHeadingSmaller;
+SimpleMDE.toggleHeadingBigger = toggleHeadingBigger;
+SimpleMDE.toggleHeading1 = toggleHeading1;
+SimpleMDE.toggleHeading2 = toggleHeading2;
+SimpleMDE.toggleHeading3 = toggleHeading3;
+SimpleMDE.toggleCodeBlock = toggleCodeBlock;
+SimpleMDE.toggleUnorderedList = toggleUnorderedList;
+SimpleMDE.toggleOrderedList = toggleOrderedList;
+SimpleMDE.drawLink = drawLink;
+SimpleMDE.drawImage = drawImage;
+SimpleMDE.drawHorizontalRule = drawHorizontalRule;
+SimpleMDE.undo = undo;
+SimpleMDE.redo = redo;
+SimpleMDE.togglePreview = togglePreview;
+SimpleMDE.toggleSideBySide = toggleSideBySide;
+SimpleMDE.toggleFullScreen = toggleFullScreen;
+
+/**
+ * Bind instance methods for exports.
+ */
+SimpleMDE.prototype.toggleBold = function() {
+ toggleBold(this);
+};
+SimpleMDE.prototype.toggleItalic = function() {
+ toggleItalic(this);
+};
+SimpleMDE.prototype.toggleStrikethrough = function() {
+ toggleStrikethrough(this);
+};
+SimpleMDE.prototype.toggleBlockquote = function() {
+ toggleBlockquote(this);
+};
+SimpleMDE.prototype.toggleHeadingSmaller = function() {
+ toggleHeadingSmaller(this);
+};
+SimpleMDE.prototype.toggleHeadingBigger = function() {
+ toggleHeadingBigger(this);
+};
+SimpleMDE.prototype.toggleHeading1 = function() {
+ toggleHeading1(this);
+};
+SimpleMDE.prototype.toggleHeading2 = function() {
+ toggleHeading2(this);
+};
+SimpleMDE.prototype.toggleHeading3 = function() {
+ toggleHeading3(this);
+};
+SimpleMDE.prototype.toggleCodeBlock = function() {
+ toggleCodeBlock(this);
+};
+SimpleMDE.prototype.toggleUnorderedList = function() {
+ toggleUnorderedList(this);
+};
+SimpleMDE.prototype.toggleOrderedList = function() {
+ toggleOrderedList(this);
+};
+SimpleMDE.prototype.drawLink = function() {
+ drawLink(this);
+};
+SimpleMDE.prototype.drawImage = function() {
+ drawImage(this);
+};
+SimpleMDE.prototype.drawHorizontalRule = function() {
+ drawHorizontalRule(this);
+};
+SimpleMDE.prototype.undo = function() {
+ undo(this);
+};
+SimpleMDE.prototype.redo = function() {
+ redo(this);
+};
+SimpleMDE.prototype.togglePreview = function() {
+ togglePreview(this);
+};
+SimpleMDE.prototype.toggleSideBySide = function() {
+ toggleSideBySide(this);
+};
+SimpleMDE.prototype.toggleFullScreen = function() {
+ toggleFullScreen(this);
+};
+module.exports = SimpleMDE;
+
+},{"./codemirror/tablist":12,"codemirror":6,"codemirror/addon/display/fullscreen.js":3,"codemirror/addon/edit/continuelist.js":4,"codemirror/addon/mode/overlay.js":5,"codemirror/mode/gfm/gfm.js":7,"codemirror/mode/markdown/markdown.js":8,"codemirror/mode/xml/xml.js":10,"marked":11,"spell-checker":1}]},{},[13])(13)
+});
\ No newline at end of file
diff --git a/dist/simplemde.min.css b/dist/simplemde.min.css
new file mode 100644
index 0000000..109e303
--- /dev/null
+++ b/dist/simplemde.min.css
@@ -0,0 +1,7 @@
+/**
+ * simplemde v1.7.6
+ * Copyright Next Step Webs, Inc.
+ * @link https://github.com/NextStepWebs/simplemde-markdown-editor
+ * @license MIT
+ */
+.CodeMirror{color:#000}.CodeMirror-lines{padding:4px 0}.CodeMirror pre{padding:0 4px}.CodeMirror-gutter-filler,.CodeMirror-scrollbar-filler{background-color:#fff}.CodeMirror-gutters{border-right:1px solid #ddd;background-color:#f7f7f7;white-space:nowrap}.CodeMirror-linenumber{padding:0 3px 0 5px;min-width:20px;text-align:right;color:#999;white-space:nowrap}.CodeMirror-guttermarker{color:#000}.CodeMirror-guttermarker-subtle{color:#999}.CodeMirror-cursor{border-left:1px solid #000;border-right:none;width:0}.CodeMirror div.CodeMirror-secondarycursor{border-left:1px solid silver}.cm-fat-cursor .CodeMirror-cursor{width:auto;border:0;background:#7e7}.cm-fat-cursor div.CodeMirror-cursors{z-index:1}.cm-animate-fat-cursor{width:auto;border:0;-webkit-animation:blink 1.06s steps(1) infinite;-moz-animation:blink 1.06s steps(1) infinite;animation:blink 1.06s steps(1) infinite;background-color:#7e7}@-moz-keyframes blink{50%{background-color:transparent}}@-webkit-keyframes 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.cm-attribute{color:#00c}.cm-s-default .cm-hr{color:#999}.cm-s-default .cm-link{color:#00c}.cm-invalidchar,.cm-s-default .cm-error{color:red}.CodeMirror-composing{border-bottom:2px solid}div.CodeMirror span.CodeMirror-matchingbracket{color:#0f0}div.CodeMirror span.CodeMirror-nonmatchingbracket{color:#f22}.CodeMirror-matchingtag{background:rgba(255,150,0,.3)}.CodeMirror-activeline-background{background:#e8f2ff}.CodeMirror{position:relative;overflow:hidden;background:#fff}.CodeMirror-scroll{overflow:scroll!important;margin-bottom:-30px;margin-right:-30px;padding-bottom:30px;height:100%;outline:0;position:relative}.CodeMirror-sizer{position:relative;border-right:30px solid transparent}.CodeMirror-gutter-filler,.CodeMirror-hscrollbar,.CodeMirror-scrollbar-filler,.CodeMirror-vscrollbar{position:absolute;z-index:6;display:none}.CodeMirror-vscrollbar{right:0;top:0;overflow-x:hidden;overflow-y:scroll}.CodeMirror-hscrollbar{bottom:0;left:0;overflow-y:hidden;overflow-x:scroll}.CodeMirror-scrollbar-filler{right:0;bottom:0}.CodeMirror-gutter-filler{left:0;bottom:0}.CodeMirror-gutters{position:absolute;left:0;top:0;z-index:3}.CodeMirror-gutter{white-space:normal;height:100%;display:inline-block;margin-bottom:-30px}.CodeMirror-gutter-wrapper{position:absolute;z-index:4;background:0 0!important;border:none!important;-webkit-user-select:none;-moz-user-select:none;user-select:none}.CodeMirror-gutter-background{position:absolute;top:0;bottom:0;z-index:4}.CodeMirror-gutter-elt{position:absolute;cursor:default;z-index:4}.CodeMirror-lines{cursor:text;min-height:1px}.CodeMirror,.CodeMirror-scroll{min-height:300px}.CodeMirror pre{-moz-border-radius:0;-webkit-border-radius:0;border-radius:0;border-width:0;background:0 0;font-family:inherit;font-size:inherit;margin:0;white-space:pre;word-wrap:normal;line-height:inherit;color:inherit;z-index:2;position:relative;overflow:visible;-webkit-tap-highlight-color:transparent}.CodeMirror-wrap pre{word-wrap:break-word;white-space:pre-wrap;word-break:normal}.CodeMirror-linebackground{position:absolute;left:0;right:0;top:0;bottom:0;z-index:0}.CodeMirror-linewidget{position:relative;z-index:2;overflow:auto}.CodeMirror-code{outline:0}.CodeMirror-gutter,.CodeMirror-gutters,.CodeMirror-linenumber,.CodeMirror-scroll,.CodeMirror-sizer{-moz-box-sizing:content-box;box-sizing:content-box}.CodeMirror-measure{position:absolute;width:100%;height:0;overflow:hidden;visibility:hidden}.CodeMirror-cursor{position:absolute}.CodeMirror-measure pre{position:static}div.CodeMirror-cursors{visibility:hidden;position:relative;z-index:3}.CodeMirror-focused 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\ No newline at end of file
diff --git a/dist/simplemde.min.js b/dist/simplemde.min.js
new file mode 100644
index 0000000..72e8161
--- /dev/null
+++ b/dist/simplemde.min.js
@@ -0,0 +1,14 @@
+/**
+ * simplemde v1.7.6
+ * Copyright Next Step Webs, Inc.
+ * @link https://github.com/NextStepWebs/simplemde-markdown-editor
+ * @license MIT
+ */
+!function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var t;t="undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:this,t.SimpleMDE=e()}}(function(){var e;return function t(e,n,r){function i(l,a){if(!n[l]){if(!e[l]){var s="function"==typeof require&&require;if(!a&&s)return s(l,!0);if(o)return o(l,!0);var c=new Error("Cannot find module '"+l+"'");throw c.code="MODULE_NOT_FOUND",c}var u=n[l]={exports:{}};e[l][0].call(u.exports,function(t){var n=e[l][1][t];return i(n?n:t)},u,u.exports,t,e,n,r)}return n[l].exports}for(var o="function"==typeof require&&require,l=0;lo;o++)for(var a=this.compoundRules[o],s=0,c=a.length;c>s;s++)this.compoundRuleCodes[a[s]]=[];"ONLYINCOMPOUND"in this.flags&&(this.compoundRuleCodes[this.flags.ONLYINCOMPOUND]=[]),this.dictionaryTable=this._parseDIC(n);for(var o in this.compoundRuleCodes)0==this.compoundRuleCodes[o].length&&delete this.compoundRuleCodes[o];for(var o=0,l=this.compoundRules.length;l>o;o++){for(var u=this.compoundRules[o],d="",s=0,c=u.length;c>s;s++){var h=u[s];d+=h in this.compoundRuleCodes?"("+this.compoundRuleCodes[h].join("|")+")":h}this.compoundRules[o]=new RegExp(d,"i")}}return this};o.prototype={load:function(e){for(var t in e)this[t]=e[t];return this},_readFile:function(e,t){t||(t="ISO8859-1");var n=new XMLHttpRequest;return n.open("GET",e,!1),n.overrideMimeType&&n.overrideMimeType("text/plain; charset="+t),n.send(null),n.responseText},_parseAFF:function(e){var t={};e=this._removeAffixComments(e);for(var n=e.split("\n"),r=0,i=n.length;i>r;r++){var o=n[r],l=o.split(/\s+/),a=l[0];if("PFX"==a||"SFX"==a){for(var s=l[1],c=l[2],u=parseInt(l[3],10),d=[],h=r+1,f=r+1+u;f>h;h++){var o=n[h],p=o.split(/\s+/),m=p[2],g=p[3].split("/"),v=g[0];"0"===v&&(v="");var y=this.parseRuleCodes(g[1]),x=p[4],b={};b.add=v,y.length>0&&(b.continuationClasses=y),"."!==x&&("SFX"===a?b.match=new RegExp(x+"$"):b.match=new RegExp("^"+x)),"0"!=m&&("SFX"===a?b.remove=new RegExp(m+"$"):b.remove=m),d.push(b)}t[s]={type:a,combineable:"Y"==c,entries:d},r+=u}else if("COMPOUNDRULE"===a){for(var u=parseInt(l[1],10),h=r+1,f=r+1+u;f>h;h++){var o=n[h],p=o.split(/\s+/);this.compoundRules.push(p[1])}r+=u}else if("REP"===a){var p=o.split(/\s+/);3===p.length&&this.replacementTable.push([p[1],p[2]])}else this.flags[a]=l[1]}return t},_removeAffixComments:function(e){return e=e.replace(/#.*$/gm,""),e=e.replace(/^\s\s*/m,"").replace(/\s\s*$/m,""),e=e.replace(/\n{2,}/g,"\n"),e=e.replace(/^\s\s*/,"").replace(/\s\s*$/,"")},_parseDIC:function(e){function t(e,t){e in r&&"object"==typeof r[e]||(r[e]=[]),r[e].push(t)}e=this._removeDicComments(e);for(var n=e.split("\n"),r={},i=1,o=n.length;o>i;i++){var l=n[i],a=l.split("/",2),s=a[0];if(a.length>1){var c=this.parseRuleCodes(a[1]);"NEEDAFFIX"in this.flags&&-1!=c.indexOf(this.flags.NEEDAFFIX)||t(s,c);for(var u=0,d=c.length;d>u;u++){var h=c[u],f=this.rules[h];if(f)for(var p=this._applyRule(s,f),m=0,g=p.length;g>m;m++){var v=p[m];if(t(v,[]),f.combineable)for(var y=u+1;d>y;y++){var x=c[y],b=this.rules[x];if(b&&b.combineable&&f.type!=b.type)for(var w=this._applyRule(v,b),C=0,k=w.length;k>C;C++){var S=w[C];t(S,[])}}}h in this.compoundRuleCodes&&this.compoundRuleCodes[h].push(s)}}else t(s.trim(),[])}return r},_removeDicComments:function(e){return e=e.replace(/^\t.*$/gm,"")},parseRuleCodes:function(e){if(!e)return[];if(!("FLAG"in this.flags))return e.split("");if("long"===this.flags.FLAG){for(var t=[],n=0,r=e.length;r>n;n+=2)t.push(e.substr(n,2));return t}return"num"===this.flags.FLAG?textCode.split(","):void 0},_applyRule:function(e,t){for(var n=t.entries,r=[],i=0,o=n.length;o>i;i++){var l=n[i];if(!l.match||e.match(l.match)){var a=e;if(l.remove&&(a=a.replace(l.remove,"")),"SFX"===t.type?a+=l.add:a=l.add+a,r.push(a),"continuationClasses"in l)for(var s=0,c=l.continuationClasses.length;c>s;s++){var u=this.rules[l.continuationClasses[s]];u&&(r=r.concat(this._applyRule(a,u)))}}}return r},check:function(e){var t=e.replace(/^\s\s*/,"").replace(/\s\s*$/,"");if(this.checkExact(t))return!0;if(t.toUpperCase()===t){var n=t[0]+t.substring(1).toLowerCase();if(this.hasFlag(n,"KEEPCASE"))return!1;if(this.checkExact(n))return!0}var r=t.toLowerCase();if(r!==t){if(this.hasFlag(r,"KEEPCASE"))return!1;if(this.checkExact(r))return!0}return!1},checkExact:function(e){var t=this.dictionaryTable[e];if("undefined"==typeof t){if("COMPOUNDMIN"in this.flags&&e.length>=this.flags.COMPOUNDMIN)for(var n=0,r=this.compoundRules.length;r>n;n++)if(e.match(this.compoundRules[n]))return!0;return!1}for(var n=0,r=t.length;r>n;n++)if(!this.hasFlag(e,"ONLYINCOMPOUND",t[n]))return!0;return!1},hasFlag:function(e,t,n){if(t in this.flags){if("undefined"==typeof n)var n=Array.prototype.concat.apply([],this.dictionaryTable[e]);if(n&&-1!==n.indexOf(this.flags[t]))return!0}return!1},alphabet:"",suggest:function(e,t){function n(e){for(var t=[],n=0,r=e.length;r>n;n++){for(var i=e[n],o=[],l=0,a=i.length+1;a>l;l++)o.push([i.substring(0,l),i.substring(l,i.length)]);for(var s=[],l=0,a=o.length;a>l;l++){var u=o[l];u[1]&&s.push(u[0]+u[1].substring(1))}for(var d=[],l=0,a=o.length;a>l;l++){var u=o[l];u[1].length>1&&d.push(u[0]+u[1][1]+u[1][0]+u[1].substring(2))}for(var h=[],l=0,a=o.length;a>l;l++){var u=o[l];if(u[1])for(var f=0,p=c.alphabet.length;p>f;f++)h.push(u[0]+c.alphabet[f]+u[1].substring(1))}for(var m=[],l=0,a=o.length;a>l;l++){var u=o[l];if(u[1])for(var f=0,p=c.alphabet.length;p>f;f++)h.push(u[0]+c.alphabet[f]+u[1])}t=t.concat(s),t=t.concat(d),t=t.concat(h),t=t.concat(m)}return t}function r(e){for(var t=[],n=0;nu;u++)a[u]in s?s[a[u]]+=1:s[a[u]]=1;var h=[];for(var u in s)h.push([u,s[u]]);h.sort(i).reverse();for(var f=[],u=0,d=Math.min(t,h.length);d>u;u++)c.hasFlag(h[u][0],"NOSUGGEST")||f.push(h[u][0]);return f}if(t||(t=5),this.check(e))return[];for(var o=0,l=this.replacementTable.length;l>o;o++){var a=this.replacementTable[o];if(-1!==e.indexOf(a[0])){var s=e.replace(a[0],a[1]);if(this.check(s))return[s]}}var c=this;return c.alphabet="abcdefghijklmnopqrstuvwxyz",i(e)}},i("undefined"!=typeof o?o:window.Typo)}).call(e,void 0,void 0,void 0,void 0,function(e){t.exports=e})}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{}],3:[function(t,n,r){!function(i){"object"==typeof r&&"object"==typeof n?i(t("../../lib/codemirror")):"function"==typeof e&&e.amd?e(["../../lib/codemirror"],i):i(CodeMirror)}(function(e){"use strict";function t(e){var 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i(e){e.options.lineWrapping?(Yl(e.display.wrapper,"CodeMirror-wrap"),e.display.sizer.style.minWidth="",e.display.sizerWidth=null):(Xl(e.display.wrapper,"CodeMirror-wrap"),h(e)),l(e),Et(e),lt(e),setTimeout(function(){y(e)},100)}function o(e){var t=vt(e.display),n=e.options.lineWrapping,r=n&&Math.max(5,e.display.scroller.clientWidth/yt(e.display)-3);return function(i){if(wr(e.doc,i))return 0;var o=0;if(i.widgets)for(var l=0;lt.maxLineLength&&(t.maxLineLength=n,t.maxLine=e)})}function f(e){var t=Di(e.gutters,"CodeMirror-linenumbers");-1==t&&e.lineNumbers?e.gutters=e.gutters.concat(["CodeMirror-linenumbers"]):t>-1&&!e.lineNumbers&&(e.gutters=e.gutters.slice(0),e.gutters.splice(t,1))}function p(e){var 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v(t){t.display.scrollbars&&(t.display.scrollbars.clear(),t.display.scrollbars.addClass&&Xl(t.display.wrapper,t.display.scrollbars.addClass)),t.display.scrollbars=new e.scrollbarModel[t.options.scrollbarStyle](function(e){t.display.wrapper.insertBefore(e,t.display.scrollbarFiller),Nl(e,"mousedown",function(){t.state.focused&&setTimeout(function(){t.display.input.focus()},0)}),e.setAttribute("cm-not-content","true")},function(e,n){"horizontal"==n?rn(t,e):nn(t,e)},t),t.display.scrollbars.addClass&&Yl(t.display.wrapper,t.display.scrollbars.addClass)}function y(e,t){t||(t=p(e));var n=e.display.barWidth,r=e.display.barHeight;x(e,t);for(var i=0;4>i&&n!=e.display.barWidth||r!=e.display.barHeight;i++)n!=e.display.barWidth&&e.options.lineWrapping&&H(e),x(e,p(e)),n=e.display.barWidth,r=e.display.barHeight}function x(e,t){var n=e.display,r=n.scrollbars.update(t);n.sizer.style.paddingRight=(n.barWidth=r.right)+"px",n.sizer.style.paddingBottom=(n.barHeight=r.bottom)+"px",r.right&&r.bottom?(n.scrollbarFiller.style.display="block",n.scrollbarFiller.style.height=r.bottom+"px",n.scrollbarFiller.style.width=r.right+"px"):n.scrollbarFiller.style.display="",r.bottom&&e.options.coverGutterNextToScrollbar&&e.options.fixedGutter?(n.gutterFiller.style.display="block",n.gutterFiller.style.height=r.bottom+"px",n.gutterFiller.style.width=t.gutterWidth+"px"):n.gutterFiller.style.display=""}function b(e,t,n){var r=n&&null!=n.top?Math.max(0,n.top):e.scroller.scrollTop;r=Math.floor(r-je(e));var i=n&&null!=n.bottom?n.bottom:r+e.wrapper.clientHeight,o=ti(t,r),l=ti(t,i);if(n&&n.ensure){var a=n.ensure.from.line,s=n.ensure.to.line;o>a?(o=a,l=ti(t,ni(Yr(t,a))+e.wrapper.clientHeight)):Math.min(s,t.lastLine())>=l&&(o=ti(t,ni(Yr(t,s))-e.wrapper.clientHeight),l=s)}return{from:o,to:Math.max(l,o+1)}}function w(e){var t=e.display,n=t.view;if(t.alignWidgets||t.gutters.firstChild&&e.options.fixedGutter){for(var r=S(t)-t.scroller.scrollLeft+e.doc.scrollLeft,i=t.gutters.offsetWidth,o=r+"px",l=0;l=n.viewFrom&&t.visible.to<=n.viewTo&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo)&&n.renderedView==n.view&&0==Bt(e))return!1;C(e)&&(Pt(e),t.dims=W(e));var i=r.first+r.size,o=Math.max(t.visible.from-e.options.viewportMargin,r.first),l=Math.min(i,t.visible.to+e.options.viewportMargin);n.viewFroml&&n.viewTo-l<20&&(l=Math.min(i,n.viewTo)),Io&&(o=xr(e.doc,o),l=br(e.doc,l));var a=o!=n.viewFrom||l!=n.viewTo||n.lastWrapHeight!=t.wrapperHeight||n.lastWrapWidth!=t.wrapperWidth;Rt(e,o,l),n.viewOffset=ni(Yr(e.doc,n.viewFrom)),e.display.mover.style.top=n.viewOffset+"px";var s=Bt(e);if(!a&&0==s&&!t.force&&n.renderedView==n.view&&(null==n.updateLineNumbers||n.updateLineNumbers>=n.viewTo))return!1;var c=Gi();return s>4&&(n.lineDiv.style.display="none"),E(e,n.updateLineNumbers,t.dims),s>4&&(n.lineDiv.style.display=""),n.renderedView=n.view,c&&Gi()!=c&&c.offsetHeight&&c.focus(),ji(n.cursorDiv),ji(n.selectionDiv),n.gutters.style.height=n.sizer.style.minHeight=0,a&&(n.lastWrapHeight=t.wrapperHeight,n.lastWrapWidth=t.wrapperWidth,ze(e,400)),n.updateLineNumbers=null,!0}function N(e,t){for(var n=t.viewport,r=!0;(r&&e.options.lineWrapping&&t.oldDisplayWidth!=$e(e)||(n&&null!=n.top&&(n={top:Math.min(e.doc.height+qe(e.display)-Ve(e),n.top)}),t.visible=b(e.display,e.doc,n),!(t.visible.from>=e.display.viewFrom&&t.visible.to<=e.display.viewTo)))&&M(e,t);r=!1){H(e);var i=p(e);We(e),O(e,i),y(e,i)}t.signal(e,"update",e),(e.display.viewFrom!=e.display.reportedViewFrom||e.display.viewTo!=e.display.reportedViewTo)&&(t.signal(e,"viewportChange",e,e.display.viewFrom,e.display.viewTo),e.display.reportedViewFrom=e.display.viewFrom,e.display.reportedViewTo=e.display.viewTo)}function A(e,t){var n=new L(e,t);if(M(e,n)){H(e),N(e,n);var r=p(e);We(e),O(e,r),y(e,r),n.finish()}}function O(e,t){e.display.sizer.style.minHeight=t.docHeight+"px";var n=t.docHeight+e.display.barHeight;e.display.heightForcer.style.top=n+"px",e.display.gutters.style.height=Math.max(n+Ue(e),t.clientHeight)+"px"}function H(e){for(var t=e.display,n=t.lineDiv.offsetTop,r=0;rxo){var l=o.node.offsetTop+o.node.offsetHeight;i=l-n,n=l}else{var a=o.node.getBoundingClientRect();i=a.bottom-a.top}var s=o.line.height-i;if(2>i&&(i=vt(t)),(s>.001||-.001>s)&&(Jr(o.line,i),D(o.line),o.rest))for(var c=0;c=t&&d.lineNumber;d.changes&&(Di(d.changes,"gutter")>-1&&(h=!1),I(e,d,c,n)),h&&(ji(d.lineNumber),d.lineNumber.appendChild(document.createTextNode(k(e.options,c)))),a=d.node.nextSibling}else{var f=q(e,d,c,n);l.insertBefore(f,a)}c+=d.size}for(;a;)a=r(a)}function I(e,t,n,r){for(var i=0;ixo&&(e.node.style.zIndex=2)),e.node}function F(e){var t=e.bgClass?e.bgClass+" "+(e.line.bgClass||""):e.line.bgClass;if(t&&(t+=" 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_(e,t,n,r){if(t.gutter&&(t.node.removeChild(t.gutter),t.gutter=null),t.gutterBackground&&(t.node.removeChild(t.gutterBackground),t.gutterBackground=null),t.line.gutterClass){var i=P(t);t.gutterBackground=_i("div",null,"CodeMirror-gutter-background "+t.line.gutterClass,"left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px; width: "+r.gutterTotalWidth+"px"),i.insertBefore(t.gutterBackground,t.text)}var o=t.line.gutterMarkers;if(e.options.lineNumbers||o){var i=P(t),l=t.gutter=_i("div",null,"CodeMirror-gutter-wrapper","left: "+(e.options.fixedGutter?r.fixedPos:-r.gutterTotalWidth)+"px");if(e.display.input.setUneditable(l),i.insertBefore(l,t.text),t.line.gutterClass&&(l.className+=" "+t.line.gutterClass),!e.options.lineNumbers||o&&o["CodeMirror-linenumbers"]||(t.lineNumber=l.appendChild(_i("div",k(e.options,n),"CodeMirror-linenumber CodeMirror-gutter-elt","left: "+r.gutterLeft["CodeMirror-linenumbers"]+"px; width: "+e.display.lineNumInnerWidth+"px"))),o)for(var a=0;a1)if(zo&&zo.join("\n")==t){if(r.ranges.length%zo.length==0){s=[];for(var c=0;c=0;c--){var u=r.ranges[c],d=u.from(),h=u.to();u.empty()&&(n&&n>0?d=Po(d.line,d.ch-n):e.state.overwrite&&!l&&(h=Po(h.line,Math.min(Yr(o,h.line).text.length,h.ch+Hi(a).length))));var f=e.curOp.updateInput,p={from:d,to:h,text:s?s[c%s.length]:a,origin:i||(l?"paste":e.state.cutIncoming?"cut":"+input")};Ln(e.doc,p),ki(e,"inputRead",e,p)}t&&!l&&ee(e,t),Fn(e),e.curOp.updateInput=f,e.curOp.typing=!0,e.state.pasteIncoming=e.state.cutIncoming=!1}function J(e,t){var n=e.clipboardData&&e.clipboardData.getData("text/plain");return n?(e.preventDefault(),Q(t)||t.options.disableInput||Nt(t,function(){Z(t,n,0,null,"paste")}),!0):void 0}function ee(e,t){if(e.options.electricChars&&e.options.smartIndent)for(var n=e.doc.sel,r=n.ranges.length-1;r>=0;r--){var i=n.ranges[r];if(!(i.head.ch>100||r&&n.ranges[r-1].head.line==i.head.line)){var o=e.getModeAt(i.head),l=!1;if(o.electricChars){for(var a=0;a-1){l=Rn(e,i.head.line,"smart");break}}else o.electricInput&&o.electricInput.test(Yr(e.doc,i.head.line).text.slice(0,i.head.ch))&&(l=Rn(e,i.head.line,"smart"));l&&ki(e,"electricInput",e,i.head.line)}}}function te(e){for(var t=[],n=[],r=0;ri?c.map:u[i],l=0;li?e.line:e.rest[i]),d=o[l]+r;return(0>r||a!=t)&&(d=o[l+(r?1:0)]),Po(s,d)}}}var i=e.text.firstChild,o=!1;if(!t||!$l(i,t))return ae(Po(ei(e.line),0),!0);if(t==i&&(o=!0,t=i.childNodes[n],n=0,!t)){var l=e.rest?Hi(e.rest):e.line;return ae(Po(ei(l),l.text.length),o)}var a=3==t.nodeType?t:null,s=t;for(a||1!=t.childNodes.length||3!=t.firstChild.nodeType||(a=t.firstChild,n&&(n=a.nodeValue.length));s.parentNode!=i;)s=s.parentNode;var c=e.measure,u=c.maps,d=r(a,s,n);if(d)return ae(d,o);for(var h=s.nextSibling,f=a?a.nodeValue.length-n:0;h;h=h.nextSibling){if(d=r(h,h.firstChild,0))return ae(Po(d.line,d.ch-f),o);f+=h.textContent.length}for(var p=s.previousSibling,f=n;p;p=p.previousSibling){if(d=r(p,p.firstChild,-1))return ae(Po(d.line,d.ch+f),o);f+=h.textContent.length}}function ue(e,t,n,r,i){function o(e){return function(t){return t.id==e}}function l(t){if(1==t.nodeType){var n=t.getAttribute("cm-text");if(null!=n)return""==n&&(n=t.textContent.replace(/\u200b/g,"")),void(a+=n);var u,d=t.getAttribute("cm-marker");if(d){var h=e.findMarks(Po(r,0),Po(i+1,0),o(+d));return void(h.length&&(u=h[0].find())&&(a+=Qr(e.doc,u.from,u.to).join(c)))}if("false"==t.getAttribute("contenteditable"))return;for(var f=0;f=0){var l=X(o.from(),i.from()),a=K(o.to(),i.to()),s=o.empty()?i.from()==i.head:o.from()==o.head;t>=r&&--t,e.splice(--r,2,new he(s?a:l,s?l:a))}}return new de(e,t)}function pe(e,t){return new de([new he(e,t||e)],0)}function me(e,t){return Math.max(e.first,Math.min(t,e.first+e.size-1))}function ge(e,t){if(t.linen?Po(n,Yr(e,n).text.length):ve(t,Yr(e,t.line).text.length)}function ve(e,t){var n=e.ch;return null==n||n>t?Po(e.line,t):0>n?Po(e.line,0):e}function ye(e,t){return t>=e.first&&t=o.ch:c.to>o.ch))){if(r&&(Hl(u,"beforeCursorEnter"),u.explicitlyCleared)){if(a.markedSpans){--s;continue}break}if(!u.atomic)continue;var d=u.find(0>l?-1:1);if(0==Fo(d,o)&&(d.ch+=l,d.ch<0?d=d.line>e.first?ge(e,Po(d.line-1)):null:d.ch>a.text.length&&(d=d.linet&&(t=0),t=Math.round(t),r=Math.round(r),a.appendChild(_i("div",null,"CodeMirror-selected","position: absolute; left: "+e+"px; top: "+t+"px; width: "+(null==n?u-e:n)+"px; height: "+(r-t)+"px"))}function i(t,n,i){function o(n,r){return dt(e,Po(t,n),"div",d,r)}var a,s,d=Yr(l,t),h=d.text.length;return Ji(ri(d),n||0,null==i?h:i,function(e,t,l){var d,f,p,m=o(e,"left");if(e==t)d=m,f=p=m.left;else{if(d=o(t-1,"right"),"rtl"==l){var g=m;m=d,d=g}f=m.left,p=d.right}null==n&&0==e&&(f=c),d.top-m.top>3&&(r(f,m.top,null,m.bottom),f=c,m.bottoms.bottom||d.bottom==s.bottom&&d.right>s.right)&&(s=d),c+1>f&&(f=c),r(f,d.top,p-f,d.bottom)}),{start:a,end:s}}var o=e.display,l=e.doc,a=document.createDocumentFragment(),s=Ge(e.display),c=s.left,u=Math.max(o.sizerWidth,$e(e)-o.sizer.offsetLeft)-s.right,d=t.from(),h=t.to();if(d.line==h.line)i(d.line,d.ch,h.ch);else{var f=Yr(l,d.line),p=Yr(l,h.line),m=vr(f)==vr(p),g=i(d.line,d.ch,m?f.text.length+1:null).end,v=i(h.line,m?0:null,h.ch).start;m&&(g.top0?t.blinker=setInterval(function(){t.cursorDiv.style.visibility=(n=!n)?"":"hidden"},e.options.cursorBlinkRate):e.options.cursorBlinkRate<0&&(t.cursorDiv.style.visibility="hidden")}}function ze(e,t){e.doc.mode.startState&&e.doc.frontier=e.display.viewTo)){var n=+new Date+e.options.workTime,r=ll(t.mode,_e(e,t.frontier)),i=[];t.iter(t.frontier,Math.min(t.first+t.size,e.display.viewTo+500),function(o){if(t.frontier>=e.display.viewFrom){var l=o.styles,a=o.text.length>e.options.maxHighlightLength,s=Wr(e,o,a?ll(t.mode,r):r,!0);o.styles=s.styles;var c=o.styleClasses,u=s.classes;u?o.styleClasses=u:c&&(o.styleClasses=null);for(var d=!l||l.length!=o.styles.length||c!=u&&(!c||!u||c.bgClass!=u.bgClass||c.textClass!=u.textClass),h=0;!d&&hn?(ze(e,e.options.workDelay),!0):void 0}),i.length&&Nt(e,function(){for(var t=0;tl;--a){if(a<=o.first)return o.first;var s=Yr(o,a-1);if(s.stateAfter&&(!n||a<=o.frontier))return a;var c=zl(s.text,null,e.options.tabSize);(null==i||r>c)&&(i=a-1,r=c)}return i}function _e(e,t,n){var r=e.doc,i=e.display;if(!r.mode.startState)return!0;var o=Be(e,t,n),l=o>r.first&&Yr(r,o-1).stateAfter;return l=l?ll(r.mode,l):al(r.mode),r.iter(o,t,function(n){Ir(e,n.text,l);var a=o==t-1||o%5==0||o>=i.viewFrom&&o2&&o.push((s.bottom+c.top)/2-n.top)}}o.push(n.bottom-n.top)}}function Xe(e,t,n){if(e.line==t)return{map:e.measure.map,cache:e.measure.cache};for(var r=0;rn)return{map:e.measure.maps[r],cache:e.measure.caches[r],before:!0}}function Ye(e,t){t=vr(t);var n=ei(t),r=e.display.externalMeasured=new Dt(e.doc,t,n);r.lineN=n;var i=r.built=Fr(e,r);return r.text=i.pre,qi(e.display.lineMeasure,i.pre),r}function Qe(e,t,n,r){return et(e,Je(e,t),n,r)}function Ze(e,t){if(t>=e.display.viewFrom&&t=n.lineN&&tt?(i=0,o=1,l="left"):c>t?(i=t-s,o=i+1):(a==e.length-3||t==c&&e[a+3]>t)&&(o=c-s,i=o-1,t>=c&&(l="right")),null!=i){if(r=e[a+2],s==c&&n==(r.insertLeft?"left":"right")&&(l=n),"left"==n&&0==i)for(;a&&e[a-2]==e[a-3]&&e[a-1].insertLeft;)r=e[(a-=3)+2],l="left";if("right"==n&&i==c-s)for(;au;u++){for(;a&&Bi(t.line.text.charAt(o.coverStart+a));)--a;for(;o.coverStart+sxo&&0==a&&s==o.coverEnd-o.coverStart)i=l.parentNode.getBoundingClientRect();else if(yo&&e.options.lineWrapping){var d=jl(l,a,s).getClientRects();i=d.length?d["right"==r?d.length-1:0]:jo}else i=jl(l,a,s).getBoundingClientRect()||jo;if(i.left||i.right||0==a)break;s=a,a-=1,c="right"}yo&&11>xo&&(i=rt(e.display.measure,i))}else{a>0&&(c=r="right");var d;i=e.options.lineWrapping&&(d=l.getClientRects()).length>1?d["right"==r?d.length-1:0]:l.getBoundingClientRect()}if(yo&&9>xo&&!a&&(!i||!i.left&&!i.right)){var h=l.parentNode.getClientRects()[0];i=h?{left:h.left,right:h.left+yt(e.display),top:h.top,bottom:h.bottom}:jo}for(var f=i.top-t.rect.top,p=i.bottom-t.rect.top,m=(f+p)/2,g=t.view.measure.heights,u=0;un.from?l(e-1):l(e,r)}r=r||Yr(e.doc,t.line),i||(i=Je(e,r));var s=ri(r),c=t.ch;if(!s)return l(c);var u=so(s,c),d=a(c,u);return null!=ia&&(d.other=a(c,ia)),d}function ft(e,t){var n=0,t=ge(e.doc,t);e.options.lineWrapping||(n=yt(e.display)*t.ch);var r=Yr(e.doc,t.line),i=ni(r)+je(e.display);return{left:n,right:n,top:i,bottom:i+r.height}}function pt(e,t,n,r){var i=Po(e,t);return i.xRel=r,n&&(i.outside=!0),i}function mt(e,t,n){var r=e.doc;if(n+=e.display.viewOffset,0>n)return pt(r.first,0,!0,-1);var i=ti(r,n),o=r.first+r.size-1;if(i>o)return pt(r.first+r.size-1,Yr(r,o).text.length,!0,1);0>t&&(t=0);for(var l=Yr(r,i);;){var a=gt(e,l,i,t,n),s=mr(l),c=s&&s.find(0,!0);if(!s||!(a.ch>c.from.ch||a.ch==c.from.ch&&a.xRel>0))return a;i=ei(l=c.to.line)}}function gt(e,t,n,r,i){function o(r){var i=ht(e,Po(n,r),"line",t,c);return a=!0,l>i.bottom?i.left-s:lg)return pt(n,f,v,1);for(;;){if(u?f==h||f==uo(t,h,1):1>=f-h){for(var y=p>r||g-r>=r-p?h:f,x=r-(y==h?p:g);Bi(t.text.charAt(y));)++y;var b=pt(n,y,y==h?m:v,-1>x?-1:x>1?1:0);return b}var w=Math.ceil(d/2),C=h+w;if(u){C=h;for(var k=0;w>k;++k)C=uo(t,C,1)}var S=o(C);S>r?(f=C,g=S,(v=a)&&(g+=1e3),d=w):(h=C,p=S,m=a,d-=w)}}function vt(e){if(null!=e.cachedTextHeight)return e.cachedTextHeight;if(null==Ro){Ro=_i("pre");for(var t=0;49>t;++t)Ro.appendChild(document.createTextNode("x")),Ro.appendChild(_i("br"));Ro.appendChild(document.createTextNode("x"))}qi(e.measure,Ro);var n=Ro.offsetHeight/50;return n>3&&(e.cachedTextHeight=n),ji(e.measure),n||1}function yt(e){if(null!=e.cachedCharWidth)return e.cachedCharWidth;var t=_i("span","xxxxxxxxxx"),n=_i("pre",[t]);qi(e.measure,n);var r=t.getBoundingClientRect(),i=(r.right-r.left)/10;return i>2&&(e.cachedCharWidth=i),i||10}function xt(e){e.curOp={cm:e,viewChanged:!1,startHeight:e.doc.height,forceUpdate:!1,updateInput:null,typing:!1,changeObjs:null,cursorActivityHandlers:null,cursorActivityCalled:0,selectionChanged:!1,updateMaxLine:!1,scrollLeft:null,scrollTop:null,scrollToPos:null,focus:!1,id:++Go},qo?qo.ops.push(e.curOp):e.curOp.ownsGroup=qo={ops:[e.curOp],delayedCallbacks:[]}}function bt(e){var t=e.delayedCallbacks,n=0;do{for(;n=n.viewTo)||n.maxLineChanged&&t.options.lineWrapping,e.update=e.mustUpdate&&new L(t,e.mustUpdate&&{top:e.scrollTop,ensure:e.scrollToPos},e.forceUpdate)}function St(e){e.updatedDisplay=e.mustUpdate&&M(e.cm,e.update)}function Lt(e){var t=e.cm,n=t.display;e.updatedDisplay&&H(t),e.barMeasure=p(t),n.maxLineChanged&&!t.options.lineWrapping&&(e.adjustWidthTo=Qe(t,n.maxLine,n.maxLine.text.length).left+3,t.display.sizerWidth=e.adjustWidthTo,e.barMeasure.scrollWidth=Math.max(n.scroller.clientWidth,n.sizer.offsetLeft+e.adjustWidthTo+Ue(t)+t.display.barWidth),e.maxScrollLeft=Math.max(0,n.sizer.offsetLeft+e.adjustWidthTo-$e(t))),(e.updatedDisplay||e.selectionChanged)&&(e.preparedSelection=n.input.prepareSelection())}function Tt(e){var t=e.cm;null!=e.adjustWidthTo&&(t.display.sizer.style.minWidth=e.adjustWidthTo+"px",e.maxScrollLefto;o=r){var l=new Dt(e.doc,Yr(e.doc,o),o);r=o+l.size,i.push(l)}return i}function Et(e,t,n,r){null==t&&(t=e.doc.first),null==n&&(n=e.doc.first+e.doc.size),r||(r=0);var i=e.display;if(r&&nt)&&(i.updateLineNumbers=t),e.curOp.viewChanged=!0,t>=i.viewTo)Io&&xr(e.doc,t)i.viewFrom?Pt(e):(i.viewFrom+=r,i.viewTo+=r);else if(t<=i.viewFrom&&n>=i.viewTo)Pt(e);else if(t<=i.viewFrom){var o=zt(e,n,n+r,1);o?(i.view=i.view.slice(o.index),i.viewFrom=o.lineN,i.viewTo+=r):Pt(e)}else if(n>=i.viewTo){var o=zt(e,t,t,-1);o?(i.view=i.view.slice(0,o.index),i.viewTo=o.lineN):Pt(e)}else{var l=zt(e,t,t,-1),a=zt(e,n,n+r,1);l&&a?(i.view=i.view.slice(0,l.index).concat(Wt(e,l.lineN,a.lineN)).concat(i.view.slice(a.index)),i.viewTo+=r):Pt(e)}var s=i.externalMeasured;s&&(n=i.lineN&&t=r.viewTo)){var o=r.view[Ft(e,t)];if(null!=o.node){var l=o.changes||(o.changes=[]);-1==Di(l,n)&&l.push(n)}}}function Pt(e){e.display.viewFrom=e.display.viewTo=e.doc.first,e.display.view=[],e.display.viewOffset=0}function Ft(e,t){if(t>=e.display.viewTo)return null;if(t-=e.display.viewFrom,0>t)return null;for(var n=e.display.view,r=0;rt)return r}function zt(e,t,n,r){var i,o=Ft(e,t),l=e.display.view;if(!Io||n==e.doc.first+e.doc.size)return{index:o,lineN:n};for(var a=0,s=e.display.viewFrom;o>a;a++)s+=l[a].size;if(s!=t){if(r>0){if(o==l.length-1)return null;i=s+l[o].size-t,o++}else i=s-t;t+=i,n+=i}for(;xr(e.doc,n)!=n;){if(o==(0>r?0:l.length-1))return null;n+=r*l[o-(0>r?1:0)].size,o+=r}return{index:o,lineN:n}}function Rt(e,t,n){var r=e.display,i=r.view;0==i.length||t>=r.viewTo||n<=r.viewFrom?(r.view=Wt(e,t,n),r.viewFrom=t):(r.viewFrom>t?r.view=Wt(e,t,r.viewFrom).concat(r.view):r.viewFromn&&(r.view=r.view.slice(0,Ft(e,n)))),r.viewTo=n}function Bt(e){for(var t=e.display.view,n=0,r=0;r400}var i=e.display;Nl(i.scroller,"mousedown",At(e,$t)),yo&&11>xo?Nl(i.scroller,"dblclick",At(e,function(t){if(!Li(e,t)){var n=Ut(e,t);if(n&&!Qt(e,t)&&!Gt(e.display,t)){Ll(t);var r=e.findWordAt(n);we(e.doc,r.anchor,r.head)}}})):Nl(i.scroller,"dblclick",function(t){Li(e,t)||Ll(t)}),Wo||Nl(i.scroller,"contextmenu",function(t){yn(e,t)});var o,l={end:0};Nl(i.scroller,"touchstart",function(e){if(!n(e)){clearTimeout(o);var t=+new Date;i.activeTouch={start:t,moved:!1,prev:t-l.end<=300?l:null},1==e.touches.length&&(i.activeTouch.left=e.touches[0].pageX,i.activeTouch.top=e.touches[0].pageY)}}),Nl(i.scroller,"touchmove",function(){i.activeTouch&&(i.activeTouch.moved=!0)}),Nl(i.scroller,"touchend",function(n){var o=i.activeTouch;if(o&&!Gt(i,n)&&null!=o.left&&!o.moved&&new Date-o.start<300){var l,a=e.coordsChar(i.activeTouch,"page");l=!o.prev||r(o,o.prev)?new he(a,a):!o.prev.prev||r(o,o.prev.prev)?e.findWordAt(a):new he(Po(a.line,0),ge(e.doc,Po(a.line+1,0))),e.setSelection(l.anchor,l.head),e.focus(),Ll(n)}t()}),Nl(i.scroller,"touchcancel",t),Nl(i.scroller,"scroll",function(){i.scroller.clientHeight&&(nn(e,i.scroller.scrollTop),rn(e,i.scroller.scrollLeft,!0),Hl(e,"scroll",e))}),Nl(i.scroller,"mousewheel",function(t){on(e,t)}),Nl(i.scroller,"DOMMouseScroll",function(t){on(e,t)}),Nl(i.wrapper,"scroll",function(){i.wrapper.scrollTop=i.wrapper.scrollLeft=0}),i.dragFunctions={enter:function(t){Li(e,t)||Ml(t)},over:function(t){Li(e,t)||(en(e,t),Ml(t))},start:function(t){Jt(e,t)},drop:At(e,Zt),leave:function(){tn(e)}};var a=i.input.getField();Nl(a,"keyup",function(t){fn.call(e,t)}),Nl(a,"keydown",At(e,dn)),Nl(a,"keypress",At(e,pn)),Nl(a,"focus",Fi(gn,e)),Nl(a,"blur",Fi(vn,e))}function jt(t,n,r){var i=r&&r!=e.Init;if(!n!=!i){var o=t.display.dragFunctions,l=n?Nl:Ol;l(t.display.scroller,"dragstart",o.start),l(t.display.scroller,"dragenter",o.enter),l(t.display.scroller,"dragover",o.over),l(t.display.scroller,"dragleave",o.leave),l(t.display.scroller,"drop",o.drop)}}function qt(e){var t=e.display;(t.lastWrapHeight!=t.wrapper.clientHeight||t.lastWrapWidth!=t.wrapper.clientWidth)&&(t.cachedCharWidth=t.cachedTextHeight=t.cachedPaddingH=null,t.scrollbarsClipped=!1,e.setSize())}function Gt(e,t){for(var n=bi(t);n!=e.wrapper;n=n.parentNode)if(!n||1==n.nodeType&&"true"==n.getAttribute("cm-ignore-events")||n.parentNode==e.sizer&&n!=e.mover)return!0}function Ut(e,t,n,r){var i=e.display;if(!n&&"true"==bi(t).getAttribute("cm-not-content"))return null;var o,l,a=i.lineSpace.getBoundingClientRect();try{o=t.clientX-a.left,l=t.clientY-a.top}catch(t){return null}var s,c=mt(e,o,l);if(r&&1==c.xRel&&(s=Yr(e.doc,c.line).text).length==c.ch){var u=zl(s,s.length,e.options.tabSize)-s.length;c=Po(c.line,Math.max(0,Math.round((o-Ge(e.display).left)/yt(e.display))-u))}return c}function $t(e){var t=this,n=t.display;if(!(n.activeTouch&&n.input.supportsTouch()||Li(t,e))){if(n.shift=e.shiftKey,Gt(n,e))return void(bo||(n.scroller.draggable=!1,setTimeout(function(){n.scroller.draggable=!0},100)));if(!Qt(t,e)){var r=Ut(t,e);switch(window.focus(),wi(e)){case 1:t.state.selectingText?t.state.selectingText(e):r?Vt(t,e,r):bi(e)==n.scroller&&Ll(e);break;case 2:bo&&(t.state.lastMiddleDown=+new Date),r&&we(t.doc,r),setTimeout(function(){n.input.focus()},20),Ll(e);break;case 3:Wo?yn(t,e):mn(t)}}}}function Vt(e,t,n){yo?setTimeout(Fi(Y,e),0):e.curOp.focus=Gi();var r,i=+new Date;_o&&_o.time>i-400&&0==Fo(_o.pos,n)?r="triple":Bo&&Bo.time>i-400&&0==Fo(Bo.pos,n)?(r="double",_o={time:i,pos:n}):(r="single",Bo={time:i,pos:n});var o,l=e.doc.sel,a=Ao?t.metaKey:t.ctrlKey;e.options.dragDrop&&Zl&&!Q(e)&&"single"==r&&(o=l.contains(n))>-1&&(Fo((o=l.ranges[o]).from(),n)<0||n.xRel>0)&&(Fo(o.to(),n)>0||n.xRel<0)?Kt(e,t,n,a):Xt(e,t,n,r,a)}function Kt(e,t,n,r){var i=e.display,o=+new Date,l=At(e,function(a){bo&&(i.scroller.draggable=!1),e.state.draggingText=!1,Ol(document,"mouseup",l),Ol(i.scroller,"drop",l),Math.abs(t.clientX-a.clientX)+Math.abs(t.clientY-a.clientY)<10&&(Ll(a),!r&&+new Date-200=p;p++){var v=Yr(c,p).text,y=Rl(v,s,o);s==f?i.push(new he(Po(p,y),Po(p,y))):v.length>y&&i.push(new he(Po(p,y),Po(p,Rl(v,f,o))))}i.length||i.push(new he(n,n)),Me(c,fe(h.ranges.slice(0,d).concat(i),d),{origin:"*mouse",scroll:!1}),e.scrollIntoView(t)}else{var x=u,b=x.anchor,w=t;if("single"!=r){if("double"==r)var C=e.findWordAt(t);else var C=new he(Po(t.line,0),ge(c,Po(t.line+1,0)));Fo(C.anchor,b)>0?(w=C.head,b=X(x.from(),C.anchor)):(w=C.anchor,b=K(x.to(),C.head))}var i=h.ranges.slice(0);i[d]=new he(ge(c,b),w),Me(c,fe(i,d),Pl)}}function l(t){var n=++y,i=Ut(e,t,!0,"rect"==r);if(i)if(0!=Fo(i,g)){e.curOp.focus=Gi(),o(i);var a=b(s,c);(i.line>=a.to||i.linev.bottom?20:0;u&&setTimeout(At(e,function(){y==n&&(s.scroller.scrollTop+=u,l(t))}),50)}}function a(t){e.state.selectingText=!1,y=1/0,Ll(t),s.input.focus(),Ol(document,"mousemove",x),Ol(document,"mouseup",w),c.history.lastSelOrigin=null}var s=e.display,c=e.doc;Ll(t);var u,d,h=c.sel,f=h.ranges;if(i&&!t.shiftKey?(d=c.sel.contains(n),u=d>-1?f[d]:new he(n,n)):(u=c.sel.primary(),d=c.sel.primIndex),t.altKey)r="rect",i||(u=new he(n,n)),n=Ut(e,t,!0,!0),d=-1;else if("double"==r){var p=e.findWordAt(n);u=e.display.shift||c.extend?be(c,u,p.anchor,p.head):p}else if("triple"==r){var m=new he(Po(n.line,0),ge(c,Po(n.line+1,0)));u=e.display.shift||c.extend?be(c,u,m.anchor,m.head):m}else u=be(c,u,n);i?-1==d?(d=f.length,Me(c,fe(f.concat([u]),d),{scroll:!1,origin:"*mouse"})):f.length>1&&f[d].empty()&&"single"==r&&!t.shiftKey?(Me(c,fe(f.slice(0,d).concat(f.slice(d+1)),0),{scroll:!1,origin:"*mouse"}),h=c.sel):ke(c,d,u,Pl):(d=0,Me(c,new de([u],0),Pl),h=c.sel);var g=n,v=s.wrapper.getBoundingClientRect(),y=0,x=At(e,function(e){wi(e)?l(e):a(e)}),w=At(e,a);e.state.selectingText=w,Nl(document,"mousemove",x),Nl(document,"mouseup",w)}function Yt(e,t,n,r,i){try{var o=t.clientX,l=t.clientY}catch(t){return!1}if(o>=Math.floor(e.display.gutters.getBoundingClientRect().right))return!1;r&&Ll(t);var a=e.display,s=a.lineDiv.getBoundingClientRect();if(l>s.bottom||!Mi(e,n))return xi(t);l-=s.top-a.viewOffset;for(var c=0;c=o){var d=ti(e.doc,l),h=e.options.gutters[c];return i(e,n,e,d,h,t),xi(t)}}}function Qt(e,t){return Yt(e,t,"gutterClick",!0,ki)}function Zt(e){var t=this;if(tn(t),!Li(t,e)&&!Gt(t.display,e)){Ll(e),yo&&(Uo=+new Date);var n=Ut(t,e,!0),r=e.dataTransfer.files;if(n&&!Q(t))if(r&&r.length&&window.FileReader&&window.File)for(var i=r.length,o=Array(i),l=0,a=function(e,r){if(!t.options.allowDropFileTypes||-1!=Di(t.options.allowDropFileTypes,e.type)){var a=new FileReader;a.onload=At(t,function(){var e=a.result;if(/[\x00-\x08\x0e-\x1f]{2}/.test(e)&&(e=""),o[r]=e,++l==i){n=ge(t.doc,n);var s={from:n,to:n,text:t.doc.splitLines(o.join(t.doc.lineSeparator())),origin:"paste"};Ln(t.doc,s),Te(t.doc,pe(n,Qo(s)))}}),a.readAsText(e)}},s=0;i>s;++s)a(r[s],s);else{if(t.state.draggingText&&t.doc.sel.contains(n)>-1)return t.state.draggingText(e),void setTimeout(function(){t.display.input.focus()},20);try{var o=e.dataTransfer.getData("Text");if(o){if(t.state.draggingText&&!(Ao?e.altKey:e.ctrlKey))var c=t.listSelections();if(Ne(t.doc,pe(n,n)),c)for(var s=0;sl.clientWidth,s=l.scrollHeight>l.clientHeight;if(r&&a||i&&s){if(i&&Ao&&bo)e:for(var c=t.target,u=o.view;c!=l;c=c.parentNode)for(var d=0;dh?f=Math.max(0,f+h-50):p=Math.min(e.doc.height,p+h+50),A(e,{top:f,bottom:p})}20>$o&&(null==o.wheelStartX?(o.wheelStartX=l.scrollLeft,o.wheelStartY=l.scrollTop,o.wheelDX=r,o.wheelDY=i,setTimeout(function(){if(null!=o.wheelStartX){var e=l.scrollLeft-o.wheelStartX,t=l.scrollTop-o.wheelStartY,n=t&&o.wheelDY&&t/o.wheelDY||e&&o.wheelDX&&e/o.wheelDX;o.wheelStartX=o.wheelStartY=null,n&&(Vo=(Vo*$o+n)/($o+1),++$o)}},200)):(o.wheelDX+=r,o.wheelDY+=i))}}function ln(e,t,n){if("string"==typeof t&&(t=sl[t],!t))return!1;e.display.input.ensurePolled();var r=e.display.shift,i=!1;try{Q(e)&&(e.state.suppressEdits=!0),n&&(e.display.shift=!1),i=t(e)!=El}finally{e.display.shift=r,e.state.suppressEdits=!1}return i}function an(e,t,n){for(var r=0;rxo&&27==e.keyCode&&(e.returnValue=!1);var n=e.keyCode;t.display.shift=16==n||e.shiftKey;var r=cn(t,e);ko&&(Yo=r?n:null,!r&&88==n&&!ta&&(Ao?e.metaKey:e.ctrlKey)&&t.replaceSelection("",null,"cut")),18!=n||/\bCodeMirror-crosshair\b/.test(t.display.lineDiv.className)||hn(t)}}function hn(e){function t(e){18!=e.keyCode&&e.altKey||(Xl(n,"CodeMirror-crosshair"),Ol(document,"keyup",t),Ol(document,"mouseover",t))}var n=e.display.lineDiv;Yl(n,"CodeMirror-crosshair"),Nl(document,"keyup",t),Nl(document,"mouseover",t)}function fn(e){16==e.keyCode&&(this.doc.sel.shift=!1),Li(this,e)}function pn(e){var t=this;if(!(Gt(t.display,e)||Li(t,e)||e.ctrlKey&&!e.altKey||Ao&&e.metaKey)){var n=e.keyCode,r=e.charCode;if(ko&&n==Yo)return Yo=null,void Ll(e);if(!ko||e.which&&!(e.which<10)||!cn(t,e)){var i=String.fromCharCode(null==r?n:r);un(t,e,i)||t.display.input.onKeyPress(e)}}}function mn(e){e.state.delayingBlurEvent=!0,setTimeout(function(){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1,vn(e))},100)}function gn(e){e.state.delayingBlurEvent&&(e.state.delayingBlurEvent=!1),"nocursor"!=e.options.readOnly&&(e.state.focused||(Hl(e,"focus",e),e.state.focused=!0,Yl(e.display.wrapper,"CodeMirror-focused"),e.curOp||e.display.selForContextMenu==e.doc.sel||(e.display.input.reset(),bo&&setTimeout(function(){e.display.input.reset(!0)},20)),e.display.input.receivedFocus()),Fe(e))}function vn(e){e.state.delayingBlurEvent||(e.state.focused&&(Hl(e,"blur",e),e.state.focused=!1,Xl(e.display.wrapper,"CodeMirror-focused")),clearInterval(e.display.blinker),setTimeout(function(){e.state.focused||(e.display.shift=!1)},150))}function yn(e,t){Gt(e.display,t)||xn(e,t)||Li(e,t,"contextmenu")||e.display.input.onContextMenu(t)}function xn(e,t){return Mi(e,"gutterContextMenu")?Yt(e,t,"gutterContextMenu",!1,Hl):!1}function bn(e,t){if(Fo(e,t.from)<0)return e;if(Fo(e,t.to)<=0)return Qo(t);var n=e.line+t.text.length-(t.to.line-t.from.line)-1,r=e.ch;return e.line==t.to.line&&(r+=Qo(t).ch-t.to.ch),Po(n,r)}function wn(e,t){for(var n=[],r=0;r=0;--i)Tn(e,{from:r[i].from,to:r[i].to,text:i?[""]:t.text});else Tn(e,t)}}function Tn(e,t){if(1!=t.text.length||""!=t.text[0]||0!=Fo(t.from,t.to)){var n=wn(e,t);si(e,t,n,e.cm?e.cm.curOp.id:NaN),An(e,t,n,ir(e,t));var r=[];Kr(e,function(e,n){n||-1!=Di(r,e.history)||(yi(e.history,t),r.push(e.history)),An(e,t,null,ir(e,t))})}}function Mn(e,t,n){if(!e.cm||!e.cm.state.suppressEdits){for(var r,i=e.history,o=e.sel,l="undo"==t?i.done:i.undone,a="undo"==t?i.undone:i.done,s=0;s=0;--s){var d=r.changes[s];if(d.origin=t,u&&!Sn(e,d,!1))return void(l.length=0);c.push(oi(e,d));var h=s?wn(e,d):Hi(l);An(e,d,h,lr(e,d)),!s&&e.cm&&e.cm.scrollIntoView({from:d.from,to:Qo(d)});var f=[];Kr(e,function(e,t){t||-1!=Di(f,e.history)||(yi(e.history,d),f.push(e.history)),An(e,d,null,lr(e,d))})}}}}function Nn(e,t){if(0!=t&&(e.first+=t,e.sel=new de(Wi(e.sel.ranges,function(e){return new he(Po(e.anchor.line+t,e.anchor.ch),Po(e.head.line+t,e.head.ch))}),e.sel.primIndex),e.cm)){Et(e.cm,e.first,e.first-t,t);for(var n=e.cm.display,r=n.viewFrom;re.lastLine())){if(t.from.lineo&&(t={from:t.from,to:Po(o,Yr(e,o).text.length),text:[t.text[0]],origin:t.origin}),t.removed=Qr(e,t.from,t.to),n||(n=wn(e,t)),e.cm?On(e.cm,t,r):Ur(e,t,r),Ne(e,n,Il)}}function On(e,t,n){var r=e.doc,i=e.display,l=t.from,a=t.to,s=!1,c=l.line;e.options.lineWrapping||(c=ei(vr(Yr(r,l.line))),r.iter(c,a.line+1,function(e){return e==i.maxLine?(s=!0,!0):void 0})),r.sel.contains(t.from,t.to)>-1&&Ti(e),Ur(r,t,n,o(e)),e.options.lineWrapping||(r.iter(c,l.line+t.text.length,function(e){var t=d(e);t>i.maxLineLength&&(i.maxLine=e,i.maxLineLength=t,i.maxLineChanged=!0,s=!1)}),s&&(e.curOp.updateMaxLine=!0)),r.frontier=Math.min(r.frontier,l.line),ze(e,400);var u=t.text.length-(a.line-l.line)-1;t.full?Et(e):l.line!=a.line||1!=t.text.length||Gr(e.doc,t)?Et(e,l.line,a.line+1,u):It(e,l.line,"text");var h=Mi(e,"changes"),f=Mi(e,"change");if(f||h){var p={from:l,to:a,text:t.text,removed:t.removed,origin:t.origin};f&&ki(e,"change",e,p),h&&(e.curOp.changeObjs||(e.curOp.changeObjs=[])).push(p)}e.display.selForContextMenu=null}function Hn(e,t,n,r,i){if(r||(r=n),Fo(r,n)<0){var o=r;r=n,n=o}"string"==typeof t&&(t=e.splitLines(t)),Ln(e,{from:n,to:r,text:t,origin:i})}function Dn(e,t){if(!Li(e,"scrollCursorIntoView")){var n=e.display,r=n.sizer.getBoundingClientRect(),i=null;if(t.top+r.top<0?i=!0:t.bottom+r.top>(window.innerHeight||document.documentElement.clientHeight)&&(i=!1),null!=i&&!To){var o=_i("div","",null,"position: absolute; top: "+(t.top-n.viewOffset-je(e.display))+"px; height: "+(t.bottom-t.top+Ue(e)+n.barHeight)+"px; left: "+t.left+"px; width: 2px;");e.display.lineSpace.appendChild(o),o.scrollIntoView(i),e.display.lineSpace.removeChild(o)}}}function Wn(e,t,n,r){null==r&&(r=0);for(var i=0;5>i;i++){var 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t=!1,n=this;n.pollingFast=!0,n.polling.set(20,e)},poll:function(){var e=this.cm,t=this.textarea,n=this.prevInput;if(this.contextMenuPending||!e.state.focused||ea(t)&&!n&&!this.composing||Q(e)||e.options.disableInput||e.state.keySeq)return!1;var r=t.value;if(r==n&&!e.somethingSelected())return!1;if(yo&&xo>=9&&this.hasSelection===r||Ao&&/[\uf700-\uf7ff]/.test(r))return e.display.input.reset(),!1;if(e.doc.sel==e.display.selForContextMenu){var i=r.charCodeAt(0);if(8203!=i||n||(n=""),8666==i)return this.reset(),this.cm.execCommand("undo")}for(var o=0,l=Math.min(n.length,r.length);l>o&&n.charCodeAt(o)==r.charCodeAt(o);)++o;var a=this;return 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n=this,r=n.cm,i=n.div=e.lineDiv;ne(i),Nl(i,"paste",function(e){J(e,r)}),Nl(i,"compositionstart",function(e){var t=e.data;if(n.composing={sel:r.doc.sel,data:t,startData:t},t){var i=r.doc.sel.primary(),o=r.getLine(i.head.line),l=o.indexOf(t,Math.max(0,i.head.ch-t.length));l>-1&&l<=i.head.ch&&(n.composing.sel=pe(Po(i.head.line,l),Po(i.head.line,l+t.length)))}}),Nl(i,"compositionupdate",function(e){n.composing.data=e.data}),Nl(i,"compositionend",function(e){var t=n.composing;t&&(e.data==t.startData||/\u200b/.test(e.data)||(t.data=e.data),setTimeout(function(){t.handled||n.applyComposition(t),n.composing==t&&(n.composing=null)},50))}),Nl(i,"touchstart",function(){n.forceCompositionEnd()}),Nl(i,"input",function(){n.composing||(Q(r)||!n.pollContent())&&Nt(n.cm,function(){Et(r)})}),Nl(i,"copy",t),Nl(i,"cut",t)},prepareSelection:function(){var e=Ee(this.cm,!1);return e.focus=this.cm.state.focused,e},showSelection:function(e){e&&this.cm.display.view.length&&(e.focus&&this.showPrimarySelection(),this.showMultipleSelections(e))},showPrimarySelection:function(){var e=window.getSelection(),t=this.cm.doc.sel.primary(),n=se(this.cm,e.anchorNode,e.anchorOffset),r=se(this.cm,e.focusNode,e.focusOffset);if(!n||n.bad||!r||r.bad||0!=Fo(X(n,r),t.from())||0!=Fo(K(n,r),t.to())){var i=le(this.cm,t.from()),o=le(this.cm,t.to());if(i||o){var l=this.cm.display.view,a=e.rangeCount&&e.getRangeAt(0);if(i){if(!o){var s=l[l.length-1].measure,c=s.maps?s.maps[s.maps.length-1]:s.map;o={node:c[c.length-1],offset:c[c.length-2]-c[c.length-3]}}}else i={node:l[0].measure.map[2],offset:0};try{var u=jl(i.node,i.offset,o.offset,o.node)}catch(d){}u&&(e.removeAllRanges(),e.addRange(u),a&&null==e.anchorNode?e.addRange(a):mo&&this.startGracePeriod()),this.rememberSelection()}}},startGracePeriod:function(){var e=this;clearTimeout(this.gracePeriod),this.gracePeriod=setTimeout(function(){e.gracePeriod=!1,e.selectionChanged()&&e.cm.operation(function(){e.cm.curOp.selectionChanged=!0})},20)},showMultipleSelections:function(e){qi(this.cm.display.cursorDiv,e.cursors),qi(this.cm.display.selectionDiv,e.selection)},rememberSelection:function(){var e=window.getSelection();this.lastAnchorNode=e.anchorNode,this.lastAnchorOffset=e.anchorOffset,this.lastFocusNode=e.focusNode,this.lastFocusOffset=e.focusOffset},selectionInEditor:function(){var e=window.getSelection();if(!e.rangeCount)return!1;var t=e.getRangeAt(0).commonAncestorContainer;return $l(this.div,t)},focus:function(){"nocursor"!=this.cm.options.readOnly&&this.div.focus()},blur:function(){this.div.blur()},getField:function(){return this.div},supportsTouch:function(){return!0},receivedFocus:function(){function e(){t.cm.state.focused&&(t.pollSelection(),t.polling.set(t.cm.options.pollInterval,e))}var t=this;this.selectionInEditor()?this.pollSelection():Nt(this.cm,function(){t.cm.curOp.selectionChanged=!0}),this.polling.set(this.cm.options.pollInterval,e)},selectionChanged:function(){var e=window.getSelection();return e.anchorNode!=this.lastAnchorNode||e.anchorOffset!=this.lastAnchorOffset||e.focusNode!=this.lastFocusNode||e.focusOffset!=this.lastFocusOffset},pollSelection:function(){if(!this.composing&&!this.gracePeriod&&this.selectionChanged()){var e=window.getSelection(),t=this.cm;this.rememberSelection();var n=se(t,e.anchorNode,e.anchorOffset),r=se(t,e.focusNode,e.focusOffset);n&&r&&Nt(t,function(){Me(t.doc,pe(n,r),Il),(n.bad||r.bad)&&(t.curOp.selectionChanged=!0)})}},pollContent:function(){var e=this.cm,t=e.display,n=e.doc.sel.primary(),r=n.from(),i=n.to();if(r.linet.viewTo-1)return!1;var o;if(r.line==t.viewFrom||0==(o=Ft(e,r.line)))var l=ei(t.view[0].line),a=t.view[0].node;else var l=ei(t.view[o].line),a=t.view[o-1].node.nextSibling;var s=Ft(e,i.line);if(s==t.view.length-1)var c=t.viewTo-1,u=t.lineDiv.lastChild;else var c=ei(t.view[s+1].line)-1,u=t.view[s+1].node.previousSibling;for(var d=e.doc.splitLines(ue(e,a,u,l,c)),h=Qr(e.doc,Po(l,0),Po(c,Yr(e.doc,c).text.length));d.length>1&&h.length>1;)if(Hi(d)==Hi(h))d.pop(),h.pop(),c--;else{if(d[0]!=h[0])break;d.shift(),h.shift(),l++}for(var f=0,p=0,m=d[0],g=h[0],v=Math.min(m.length,g.length);v>f&&m.charCodeAt(f)==g.charCodeAt(f);)++f;for(var y=Hi(d),x=Hi(h),b=Math.min(y.length-(1==d.length?f:0),x.length-(1==h.length?f:0));b>p&&y.charCodeAt(y.length-p-1)==x.charCodeAt(x.length-p-1);)++p;d[d.length-1]=y.slice(0,y.length-p),d[0]=d[0].slice(f);var w=Po(l,f),C=Po(c,h.length?Hi(h).length-p:0);return d.length>1||d[0]||Fo(w,C)?(Hn(e.doc,d,w,C,"+input"),!0):void 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t=e;if(e=Yr(this.doc,e),!e)return null}else{var t=ei(e);if(null==t)return null}return{line:t,handle:e,text:e.text,gutterMarkers:e.gutterMarkers,textClass:e.textClass,bgClass:e.bgClass,wrapClass:e.wrapClass,widgets:e.widgets}},getViewport:function(){return{from:this.display.viewFrom,to:this.display.viewTo}},addWidget:function(e,t,n,r,i){var o=this.display;e=ht(this,ge(this.doc,e));var l=e.bottom,a=e.left;if(t.style.position="absolute",t.setAttribute("cm-ignore-events","true"),this.display.input.setUneditable(t),o.sizer.appendChild(t),"over"==r)l=e.top;else if("above"==r||"near"==r){var s=Math.max(o.wrapper.clientHeight,this.doc.height),c=Math.max(o.sizer.clientWidth,o.lineSpace.clientWidth);("above"==r||e.bottom+t.offsetHeight>s)&&e.top>t.offsetHeight?l=e.top-t.offsetHeight:e.bottom+t.offsetHeight<=s&&(l=e.bottom),a+t.offsetWidth>c&&(a=c-t.offsetWidth)}t.style.top=l+"px",t.style.left=t.style.right="","right"==i?(a=o.sizer.clientWidth-t.offsetWidth,t.style.right="0px"):("left"==i?a=0:"middle"==i&&(a=(o.sizer.clientWidth-t.offsetWidth)/2),t.style.left=a+"px"),n&&En(this,a,l,a+t.offsetWidth,l+t.offsetHeight)},triggerOnKeyDown:Ot(dn),triggerOnKeyPress:Ot(pn),triggerOnKeyUp:fn,execCommand:function(e){return sl.hasOwnProperty(e)?sl[e].call(null,this):void 0},triggerElectric:Ot(function(e){ee(this,e)}),findPosH:function(e,t,n,r){var i=1;0>t&&(i=-1,t=-t);for(var o=0,l=ge(this.doc,e);t>o&&(l=jn(this.doc,l,i,n,r),!l.hitSide);++o);return l},moveH:Ot(function(e,t){var n=this;n.extendSelectionsBy(function(r){return n.display.shift||n.doc.extend||r.empty()?jn(n.doc,r.head,e,t,n.options.rtlMoveVisually):0>e?r.from():r.to()},Fl)}),deleteH:Ot(function(e,t){var n=this.doc.sel,r=this.doc;n.somethingSelected()?r.replaceSelection("",null,"+delete"):_n(this,function(n){var i=jn(r,n.head,e,t,!1);return 0>e?{from:i,to:n.head}:{from:n.head,to:i}})}),findPosV:function(e,t,n,r){var i=1,o=r;0>t&&(i=-1,t=-t);for(var l=0,a=ge(this.doc,e);t>l;++l){var s=ht(this,a,"div");if(null==o?o=s.left:s.left=o,a=qn(this,s,i,n),a.hitSide)break}return a},moveV:Ot(function(e,t){var n=this,r=this.doc,i=[],o=!n.display.shift&&!r.extend&&r.sel.somethingSelected();if(r.extendSelectionsBy(function(l){if(o)return 0>e?l.from():l.to();var a=ht(n,l.head,"div");null!=l.goalColumn&&(a.left=l.goalColumn),i.push(a.left);var s=qn(n,a,e,t);return"page"==t&&l==r.sel.primary()&&Pn(n,null,dt(n,s,"div").top-a.top),s},Fl),i.length)for(var l=0;l0&&a(n.charAt(r-1));)--r;for(;i.5)&&l(this),Hl(this,"refresh",this)}),swapDoc:Ot(function(e){var t=this.doc;return t.cm=null,Xr(this,e),lt(this),this.display.input.reset(),this.scrollTo(e.scrollLeft,e.scrollTop),this.curOp.forceScroll=!0,ki(this,"swapDoc",this,t),t}),getInputField:function(){return this.display.input.getField()},getWrapperElement:function(){return this.display.wrapper},getScrollerElement:function(){return this.display.scroller},getGutterElement:function(){return this.display.gutters}},Ni(e);var Zo=e.defaults={},Jo=e.optionHandlers={},el=e.Init={toString:function(){return"CodeMirror.Init"}};Gn("value","",function(e,t){e.setValue(t)},!0),Gn("mode",null,function(e,t){e.doc.modeOption=t,n(e)},!0),Gn("indentUnit",2,n,!0),Gn("indentWithTabs",!1),Gn("smartIndent",!0),Gn("tabSize",4,function(e){r(e),lt(e),Et(e)},!0),Gn("lineSeparator",null,function(e,t){if(e.doc.lineSep=t,t){var n=[],r=e.doc.first;e.doc.iter(function(e){for(var i=0;;){var o=e.text.indexOf(t,i);if(-1==o)break;i=o+t.length,n.push(Po(r,o))}r++});for(var i=n.length-1;i>=0;i--)Hn(e.doc,t,n[i],Po(n[i].line,n[i].ch+t.length))}}),Gn("specialChars",/[\t\u0000-\u0019\u00ad\u200b-\u200f\u2028\u2029\ufeff]/g,function(t,n,r){t.state.specialChars=new RegExp(n.source+(n.test(" ")?"":"| "),"g"),r!=e.Init&&t.refresh()}),Gn("specialCharPlaceholder",zr,function(e){e.refresh()},!0),Gn("electricChars",!0),Gn("inputStyle",No?"contenteditable":"textarea",function(){throw new Error("inputStyle can not (yet) be changed in a running editor")},!0),Gn("rtlMoveVisually",!Oo),Gn("wholeLineUpdateBefore",!0),Gn("theme","default",function(e){a(e),s(e)},!0),Gn("keyMap","default",function(t,n,r){var i=$n(n),o=r!=e.Init&&$n(r);o&&o.detach&&o.detach(t,i),i.attach&&i.attach(t,o||null)}),Gn("extraKeys",null),Gn("lineWrapping",!1,i,!0),Gn("gutters",[],function(e){f(e.options),s(e)},!0),Gn("fixedGutter",!0,function(e,t){e.display.gutters.style.left=t?S(e.display)+"px":"0",e.refresh()},!0),Gn("coverGutterNextToScrollbar",!1,function(e){y(e)},!0),Gn("scrollbarStyle","native",function(e){v(e),y(e),e.display.scrollbars.setScrollTop(e.doc.scrollTop),e.display.scrollbars.setScrollLeft(e.doc.scrollLeft)},!0),Gn("lineNumbers",!1,function(e){f(e.options),s(e)},!0),Gn("firstLineNumber",1,s,!0),Gn("lineNumberFormatter",function(e){return e},s,!0),Gn("showCursorWhenSelecting",!1,We,!0),Gn("resetSelectionOnContextMenu",!0),Gn("lineWiseCopyCut",!0),Gn("readOnly",!1,function(e,t){"nocursor"==t?(vn(e),e.display.input.blur(),e.display.disabled=!0):e.display.disabled=!1,e.display.input.readOnlyChanged(t)}),Gn("disableInput",!1,function(e,t){t||e.display.input.reset()},!0),Gn("dragDrop",!0,jt),Gn("allowDropFileTypes",null),Gn("cursorBlinkRate",530),Gn("cursorScrollMargin",0),Gn("cursorHeight",1,We,!0),Gn("singleCursorHeightPerLine",!0,We,!0),Gn("workTime",100),Gn("workDelay",100),Gn("flattenSpans",!0,r,!0),Gn("addModeClass",!1,r,!0),Gn("pollInterval",100),Gn("undoDepth",200,function(e,t){e.doc.history.undoDepth=t}),Gn("historyEventDelay",1250),Gn("viewportMargin",10,function(e){e.refresh()},!0),Gn("maxHighlightLength",1e4,r,!0),Gn("moveInputWithCursor",!0,function(e,t){t||e.display.input.resetPosition()}),Gn("tabindex",null,function(e,t){e.display.input.getField().tabIndex=t||""}),Gn("autofocus",null);var tl=e.modes={},nl=e.mimeModes={};e.defineMode=function(t,n){e.defaults.mode||"null"==t||(e.defaults.mode=t),arguments.length>2&&(n.dependencies=Array.prototype.slice.call(arguments,2)),tl[t]=n},e.defineMIME=function(e,t){nl[e]=t},e.resolveMode=function(t){if("string"==typeof t&&nl.hasOwnProperty(t))t=nl[t];else if(t&&"string"==typeof t.name&&nl.hasOwnProperty(t.name)){var n=nl[t.name];"string"==typeof n&&(n={name:n}),t=Ii(n,t),t.name=n.name}else if("string"==typeof t&&/^[\w\-]+\/[\w\-]+\+xml$/.test(t))return e.resolveMode("application/xml");return"string"==typeof t?{name:t}:t||{name:"null"}},e.getMode=function(t,n){var n=e.resolveMode(n),r=tl[n.name];if(!r)return e.getMode(t,"text/plain");var i=r(t,n);if(rl.hasOwnProperty(n.name)){var o=rl[n.name];for(var l in o)o.hasOwnProperty(l)&&(i.hasOwnProperty(l)&&(i["_"+l]=i[l]),i[l]=o[l])}if(i.name=n.name,n.helperType&&(i.helperType=n.helperType),n.modeProps)for(var l in n.modeProps)i[l]=n.modeProps[l];return i},e.defineMode("null",function(){return{token:function(e){e.skipToEnd()}}}),e.defineMIME("text/plain","null");var rl=e.modeExtensions={};e.extendMode=function(e,t){var n=rl.hasOwnProperty(e)?rl[e]:rl[e]={};Pi(t,n)},e.defineExtension=function(t,n){e.prototype[t]=n},e.defineDocExtension=function(e,t){Cl.prototype[e]=t},e.defineOption=Gn;var il=[];e.defineInitHook=function(e){il.push(e)};var ol=e.helpers={};e.registerHelper=function(t,n,r){ol.hasOwnProperty(t)||(ol[t]=e[t]={_global:[]}),ol[t][n]=r},e.registerGlobalHelper=function(t,n,r,i){e.registerHelper(t,n,i),ol[t]._global.push({pred:r,val:i})};var ll=e.copyState=function(e,t){if(t===!0)return t;if(e.copyState)return e.copyState(t);var n={};for(var r in t){var i=t[r];i instanceof Array&&(i=i.concat([])),n[r]=i}return n},al=e.startState=function(e,t,n){return e.startState?e.startState(t,n):!0};e.innerMode=function(e,t){for(;e.innerMode;){var n=e.innerMode(t);if(!n||n.mode==e)break;t=n.state,e=n.mode}return n||{mode:e,state:t}};var sl=e.commands={selectAll:function(e){e.setSelection(Po(e.firstLine(),0),Po(e.lastLine()),Il)},singleSelection:function(e){e.setSelection(e.getCursor("anchor"),e.getCursor("head"),Il)},killLine:function(e){_n(e,function(t){if(t.empty()){var n=Yr(e.doc,t.head.line).text.length;return t.head.ch==n&&t.head.line0)i=new Po(i.line,i.ch+1),e.replaceRange(o.charAt(i.ch-1)+o.charAt(i.ch-2),Po(i.line,i.ch-2),i,"+transpose");else if(i.line>e.doc.first){var l=Yr(e.doc,i.line-1).text;l&&e.replaceRange(o.charAt(0)+e.doc.lineSeparator()+l.charAt(l.length-1),Po(i.line-1,l.length-1),Po(i.line,1),"+transpose")}n.push(new he(i,i))}e.setSelections(n)})},newlineAndIndent:function(e){Nt(e,function(){for(var t=e.listSelections().length,n=0;t>n;n++){var r=e.listSelections()[n];e.replaceRange(e.doc.lineSeparator(),r.anchor,r.head,"+input"),e.indentLine(r.from().line+1,null,!0)}Fn(e)})},toggleOverwrite:function(e){e.toggleOverwrite()}},cl=e.keyMap={};cl.basic={Left:"goCharLeft",Right:"goCharRight",Up:"goLineUp",Down:"goLineDown",End:"goLineEnd",Home:"goLineStartSmart",PageUp:"goPageUp",PageDown:"goPageDown",Delete:"delCharAfter",Backspace:"delCharBefore","Shift-Backspace":"delCharBefore",Tab:"defaultTab","Shift-Tab":"indentAuto",Enter:"newlineAndIndent",Insert:"toggleOverwrite",Esc:"singleSelection"},cl.pcDefault={"Ctrl-A":"selectAll","Ctrl-D":"deleteLine","Ctrl-Z":"undo","Shift-Ctrl-Z":"redo","Ctrl-Y":"redo","Ctrl-Home":"goDocStart","Ctrl-End":"goDocEnd","Ctrl-Up":"goLineUp","Ctrl-Down":"goLineDown","Ctrl-Left":"goGroupLeft","Ctrl-Right":"goGroupRight","Alt-Left":"goLineStart","Alt-Right":"goLineEnd","Ctrl-Backspace":"delGroupBefore","Ctrl-Delete":"delGroupAfter","Ctrl-S":"save","Ctrl-F":"find","Ctrl-G":"findNext","Shift-Ctrl-G":"findPrev","Shift-Ctrl-F":"replace","Shift-Ctrl-R":"replaceAll","Ctrl-[":"indentLess","Ctrl-]":"indentMore","Ctrl-U":"undoSelection","Shift-Ctrl-U":"redoSelection","Alt-U":"redoSelection",fallthrough:"basic"},cl.emacsy={"Ctrl-F":"goCharRight","Ctrl-B":"goCharLeft","Ctrl-P":"goLineUp","Ctrl-N":"goLineDown","Alt-F":"goWordRight","Alt-B":"goWordLeft","Ctrl-A":"goLineStart","Ctrl-E":"goLineEnd","Ctrl-V":"goPageDown","Shift-Ctrl-V":"goPageUp","Ctrl-D":"delCharAfter","Ctrl-H":"delCharBefore","Alt-D":"delWordAfter","Alt-Backspace":"delWordBefore","Ctrl-K":"killLine","Ctrl-T":"transposeChars"},cl.macDefault={"Cmd-A":"selectAll","Cmd-D":"deleteLine","Cmd-Z":"undo","Shift-Cmd-Z":"redo","Cmd-Y":"redo","Cmd-Home":"goDocStart","Cmd-Up":"goDocStart","Cmd-End":"goDocEnd","Cmd-Down":"goDocEnd","Alt-Left":"goGroupLeft","Alt-Right":"goGroupRight","Cmd-Left":"goLineLeft","Cmd-Right":"goLineRight","Alt-Backspace":"delGroupBefore","Ctrl-Alt-Backspace":"delGroupAfter","Alt-Delete":"delGroupAfter","Cmd-S":"save","Cmd-F":"find","Cmd-G":"findNext","Shift-Cmd-G":"findPrev","Cmd-Alt-F":"replace","Shift-Cmd-Alt-F":"replaceAll","Cmd-[":"indentLess","Cmd-]":"indentMore","Cmd-Backspace":"delWrappedLineLeft","Cmd-Delete":"delWrappedLineRight","Cmd-U":"undoSelection","Shift-Cmd-U":"redoSelection","Ctrl-Up":"goDocStart","Ctrl-Down":"goDocEnd",fallthrough:["basic","emacsy"]},cl["default"]=Ao?cl.macDefault:cl.pcDefault,e.normalizeKeyMap=function(e){var 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