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simplemde-markdown-editor/debug/simplemde.js

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/**
* simplemde v1.11.2
* Copyright Next Step Webs, Inc.
* @link https://github.com/NextStepWebs/simplemde-markdown-editor
* @license MIT
*/
(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<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
'use strict'
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray
var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
function init () {
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
lookup[i] = code[i]
revLookup[code.charCodeAt(i)] = i
}
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63
}
init()
function toByteArray (b64) {
var i, j, l, tmp, placeHolders, arr
var len = b64.length
if (len % 4 > 0) {
throw new Error('Invalid string. Length must be a multiple of 4')
}
// the number of equal signs (place holders)
// if there are two placeholders, than the two characters before it
// represent one byte
// if there is only one, then the three characters before it represent 2 bytes
// this is just a cheap hack to not do indexOf twice
placeHolders = b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
// base64 is 4/3 + up to two characters of the original data
arr = new Arr(len * 3 / 4 - placeHolders)
// if there are placeholders, only get up to the last complete 4 chars
l = placeHolders > 0 ? len - 4 : len
var L = 0
for (i = 0, j = 0; i < l; i += 4, j += 3) {
tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
arr[L++] = (tmp >> 16) & 0xFF
arr[L++] = (tmp >> 8) & 0xFF
arr[L++] = tmp & 0xFF
}
if (placeHolders === 2) {
tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
arr[L++] = tmp & 0xFF
} else if (placeHolders === 1) {
tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
arr[L++] = (tmp >> 8) & 0xFF
arr[L++] = tmp & 0xFF
}
return arr
}
function tripletToBase64 (num) {
return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}
function encodeChunk (uint8, start, end) {
var tmp
var output = []
for (var i = start; i < end; i += 3) {
tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
output.push(tripletToBase64(tmp))
}
return output.join('')
}
function fromByteArray (uint8) {
var tmp
var len = uint8.length
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
var output = ''
var parts = []
var maxChunkLength = 16383 // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1]
output += lookup[tmp >> 2]
output += lookup[(tmp << 4) & 0x3F]
output += '=='
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
output += lookup[tmp >> 10]
output += lookup[(tmp >> 4) & 0x3F]
output += lookup[(tmp << 2) & 0x3F]
output += '='
}
parts.push(output)
return parts.join('')
}
},{}],2:[function(require,module,exports){
},{}],3:[function(require,module,exports){
(function (global){
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
'use strict'
var base64 = require('base64-js')
var ieee754 = require('ieee754')
var isArray = require('isarray')
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Use Object implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* Due to various browser bugs, sometimes the Object implementation will be used even
* when the browser supports typed arrays.
*
* Note:
*
* - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
* See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
*
* - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
*
* - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
* incorrect length in some situations.
* We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
* get the Object implementation, which is slower but behaves correctly.
*/
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
? global.TYPED_ARRAY_SUPPORT
: typedArraySupport()
/*
* Export kMaxLength after typed array support is determined.
*/
exports.kMaxLength = kMaxLength()
function typedArraySupport () {
try {
var arr = new Uint8Array(1)
arr.foo = function () { return 42 }
return arr.foo() === 42 && // typed array instances can be augmented
typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
} catch (e) {
return false
}
}
function kMaxLength () {
return Buffer.TYPED_ARRAY_SUPPORT
? 0x7fffffff
: 0x3fffffff
}
function createBuffer (that, length) {
if (kMaxLength() < length) {
throw new RangeError('Invalid typed array length')
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = new Uint8Array(length)
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
if (that === null) {
that = new Buffer(length)
}
that.length = length
}
return that
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer (arg, encodingOrOffset, length) {
if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
return new Buffer(arg, encodingOrOffset, length)
}
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new Error(
'If encoding is specified then the first argument must be a string'
)
}
return allocUnsafe(this, arg)
}
return from(this, arg, encodingOrOffset, length)
}
Buffer.poolSize = 8192 // not used by this implementation
// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
arr.__proto__ = Buffer.prototype
return arr
}
function from (that, value, encodingOrOffset, length) {
if (typeof value === 'number') {
throw new TypeError('"value" argument must not be a number')
}
if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
return fromArrayBuffer(that, value, encodingOrOffset, length)
}
if (typeof value === 'string') {
return fromString(that, value, encodingOrOffset)
}
return fromObject(that, value)
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer.from = function (value, encodingOrOffset, length) {
return from(null, value, encodingOrOffset, length)
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array
if (typeof Symbol !== 'undefined' && Symbol.species &&
Buffer[Symbol.species] === Buffer) {
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true
})
}
}
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be a number')
}
}
function alloc (that, size, fill, encoding) {
assertSize(size)
if (size <= 0) {
return createBuffer(that, size)
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpretted as a start offset.
return typeof encoding === 'string'
? createBuffer(that, size).fill(fill, encoding)
: createBuffer(that, size).fill(fill)
}
return createBuffer(that, size)
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(null, size, fill, encoding)
}
function allocUnsafe (that, size) {
assertSize(size)
that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) {
for (var i = 0; i < size; i++) {
that[i] = 0
}
}
return that
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(null, size)
}
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(null, size)
}
function fromString (that, string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8'
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError('"encoding" must be a valid string encoding')
}
var length = byteLength(string, encoding) | 0
that = createBuffer(that, length)
that.write(string, encoding)
return that
}
function fromArrayLike (that, array) {
var length = checked(array.length) | 0
that = createBuffer(that, length)
for (var i = 0; i < length; i += 1) {
that[i] = array[i] & 255
}
return that
}
function fromArrayBuffer (that, array, byteOffset, length) {
array.byteLength // this throws if `array` is not a valid ArrayBuffer
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('\'offset\' is out of bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('\'length\' is out of bounds')
}
if (length === undefined) {
array = new Uint8Array(array, byteOffset)
} else {
array = new Uint8Array(array, byteOffset, length)
}
if (Buffer.TYPED_ARRAY_SUPPORT) {
// Return an augmented `Uint8Array` instance, for best performance
that = array
that.__proto__ = Buffer.prototype
} else {
// Fallback: Return an object instance of the Buffer class
that = fromArrayLike(that, array)
}
return that
}
function fromObject (that, obj) {
if (Buffer.isBuffer(obj)) {
var len = checked(obj.length) | 0
that = createBuffer(that, len)
if (that.length === 0) {
return that
}
obj.copy(that, 0, 0, len)
return that
}
if (obj) {
if ((typeof ArrayBuffer !== 'undefined' &&
obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
if (typeof obj.length !== 'number' || isnan(obj.length)) {
return createBuffer(that, 0)
}
return fromArrayLike(that, obj)
}
if (obj.type === 'Buffer' && isArray(obj.data)) {
return fromArrayLike(that, obj.data)
}
}
throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}
function checked (length) {
// Note: cannot use `length < kMaxLength` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= kMaxLength()) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + kMaxLength().toString(16) + ' bytes')
}
return length | 0
}
function SlowBuffer (length) {
if (+length != length) { // eslint-disable-line eqeqeq
length = 0
}
return Buffer.alloc(+length)
}
Buffer.isBuffer = function isBuffer (b) {
return !!(b != null && b._isBuffer)
}
Buffer.compare = function compare (a, b) {
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError('Arguments must be Buffers')
}
if (a === b) return 0
var x = a.length
var y = b.length
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i]
y = b[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
Buffer.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'binary':
case 'base64':
case 'raw':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat (list, length) {
if (!isArray(list)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
if (list.length === 0) {
return Buffer.alloc(0)
}
var i
if (length === undefined) {
length = 0
for (i = 0; i < list.length; i++) {
length += list[i].length
}
}
var buffer = Buffer.allocUnsafe(length)
var pos = 0
for (i = 0; i < list.length; i++) {
var buf = list[i]
if (!Buffer.isBuffer(buf)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
buf.copy(buffer, pos)
pos += buf.length
}
return buffer
}
function byteLength (string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length
}
if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
(ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
string = '' + string
}
var len = string.length
if (len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false
for (;;) {
switch (encoding) {
case 'ascii':
case 'binary':
// Deprecated
case 'raw':
case 'raws':
return len
case 'utf8':
case 'utf-8':
case undefined:
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) return utf8ToBytes(string).length // assume utf8
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.byteLength = byteLength
function slowToString (encoding, start, end) {
var loweredCase = false
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return ''
}
if (end === undefined || end > this.length) {
end = this.length
}
if (end <= 0) {
return ''
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0
start >>>= 0
if (end <= start) {
return ''
}
if (!encoding) encoding = 'utf8'
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'binary':
return binarySlice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer.prototype._isBuffer = true
function swap (b, n, m) {
var i = b[n]
b[n] = b[m]
b[m] = i
}
Buffer.prototype.swap16 = function swap16 () {
var len = this.length
if (len % 2 !== 0) {
throw new RangeError('Buffer size must be a multiple of 16-bits')
}
for (var i = 0; i < len; i += 2) {
swap(this, i, i + 1)
}
return this
}
Buffer.prototype.swap32 = function swap32 () {
var len = this.length
if (len % 4 !== 0) {
throw new RangeError('Buffer size must be a multiple of 32-bits')
}
for (var i = 0; i < len; i += 4) {
swap(this, i, i + 3)
swap(this, i + 1, i + 2)
}
return this
}
Buffer.prototype.toString = function toString () {
var length = this.length | 0
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.equals = function equals (b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect () {
var str = ''
var max = exports.INSPECT_MAX_BYTES
if (this.length > 0) {
str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
if (this.length > max) str += ' ... '
}
return '<Buffer ' + str + '>'
}
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (!Buffer.isBuffer(target)) {
throw new TypeError('Argument must be a Buffer')
}
if (start === undefined) {
start = 0
}
if (end === undefined) {
end = target ? target.length : 0
}
if (thisStart === undefined) {
thisStart = 0
}
if (thisEnd === undefined) {
thisEnd = this.length
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
}
start >>>= 0
end >>>= 0
thisStart >>>= 0
thisEnd >>>= 0
if (this === target) return 0
var x = thisEnd - thisStart
var y = end - start
var len = Math.min(x, y)
var thisCopy = this.slice(thisStart, thisEnd)
var targetCopy = target.slice(start, end)
for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i]
y = targetCopy[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
function arrayIndexOf (arr, val, byteOffset, encoding) {
var indexSize = 1
var arrLength = arr.length
var valLength = val.length
if (encoding !== undefined) {
encoding = String(encoding).toLowerCase()
if (encoding === 'ucs2' || encoding === 'ucs-2' ||
encoding === 'utf16le' || encoding === 'utf-16le') {
if (arr.length < 2 || val.length < 2) {
return -1
}
indexSize = 2
arrLength /= 2
valLength /= 2
byteOffset /= 2
}
}
function read (buf, i) {
if (indexSize === 1) {
return buf[i]
} else {
return buf.readUInt16BE(i * indexSize)
}
}
var foundIndex = -1
for (var i = 0; byteOffset + i < arrLength; i++) {
if (read(arr, byteOffset + i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
if (foundIndex === -1) foundIndex = i
if (i - foundIndex + 1 === valLength) return (byteOffset + foundIndex) * indexSize
} else {
if (foundIndex !== -1) i -= i - foundIndex
foundIndex = -1
}
}
return -1
}
Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
if (typeof byteOffset === 'string') {
encoding = byteOffset
byteOffset = 0
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000
}
byteOffset >>= 0
if (this.length === 0) return -1
if (byteOffset >= this.length) return -1
// Negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = Math.max(this.length + byteOffset, 0)
if (typeof val === 'string') {
val = Buffer.from(val, encoding)
}
if (Buffer.isBuffer(val)) {
// special case: looking for empty string/buffer always fails
if (val.length === 0) {
return -1
}
return arrayIndexOf(this, val, byteOffset, encoding)
}
if (typeof val === 'number') {
if (Buffer.TYPED_ARRAY_SUPPORT && Uint8Array.prototype.indexOf === 'function') {
return Uint8Array.prototype.indexOf.call(this, val, byteOffset)
}
return arrayIndexOf(this, [ val ], byteOffset, encoding)
}
throw new TypeError('val must be string, number or Buffer')
}
Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
return this.indexOf(val, byteOffset, encoding) !== -1
}
function hexWrite (buf, string, offset, length) {
offset = Number(offset) || 0
var remaining = buf.length - offset
if (!length) {
length = remaining
} else {
length = Number(length)
if (length > remaining) {
length = remaining
}
}
// must be an even number of digits
var strLen = string.length
if (strLen % 2 !== 0) throw new Error('Invalid hex string')
if (length > strLen / 2) {
length = strLen / 2
}
for (var i = 0; i < length; i++) {
var parsed = parseInt(string.substr(i * 2, 2), 16)
if (isNaN(parsed)) return i
buf[offset + i] = parsed
}
return i
}
function utf8Write (buf, string, offset, length) {
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
function asciiWrite (buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length)
}
function binaryWrite (buf, string, offset, length) {
return asciiWrite(buf, string, offset, length)
}
function base64Write (buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length)
}
function ucs2Write (buf, string, offset, length) {
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
Buffer.prototype.write = function write (string, offset, length, encoding) {
// Buffer#write(string)
if (offset === undefined) {
encoding = 'utf8'
length = this.length
offset = 0
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === 'string') {
encoding = offset
length = this.length
offset = 0
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset | 0
if (isFinite(length)) {
length = length | 0
if (encoding === undefined) encoding = 'utf8'
} else {
encoding = length
length = undefined
}
// legacy write(string, encoding, offset, length) - remove in v0.13
} else {
throw new Error(
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
)
}
var remaining = this.length - offset
if (length === undefined || length > remaining) length = remaining
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
throw new RangeError('Attempt to write outside buffer bounds')
}
if (!encoding) encoding = 'utf8'
var loweredCase = false
for (;;) {
switch (encoding) {
case 'hex':
return hexWrite(this, string, offset, length)
case 'utf8':
case 'utf-8':
return utf8Write(this, string, offset, length)
case 'ascii':
return asciiWrite(this, string, offset, length)
case 'binary':
return binaryWrite(this, string, offset, length)
case 'base64':
// Warning: maxLength not taken into account in base64Write
return base64Write(this, string, offset, length)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return ucs2Write(this, string, offset, length)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.prototype.toJSON = function toJSON () {
return {
type: 'Buffer',
data: Array.prototype.slice.call(this._arr || this, 0)
}
}
function base64Slice (buf, start, end) {
if (start === 0 && end === buf.length) {
return base64.fromByteArray(buf)
} else {
return base64.fromByteArray(buf.slice(start, end))
}
}
function utf8Slice (buf, start, end) {
end = Math.min(buf.length, end)
var res = []
var i = start
while (i < end) {
var firstByte = buf[i]
var codePoint = null
var bytesPerSequence = (firstByte > 0xEF) ? 4
: (firstByte > 0xDF) ? 3
: (firstByte > 0xBF) ? 2
: 1
if (i + bytesPerSequence <= end) {
var secondByte, thirdByte, fourthByte, tempCodePoint
switch (bytesPerSequence) {
case 1:
if (firstByte < 0x80) {
codePoint = firstByte
}
break
case 2:
secondByte = buf[i + 1]
if ((secondByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
if (tempCodePoint > 0x7F) {
codePoint = tempCodePoint
}
}
break
case 3:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
codePoint = tempCodePoint
}
}
break
case 4:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
fourthByte = buf[i + 3]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
codePoint = tempCodePoint
}
}
}
}
if (codePoint === null) {
// we did not generate a valid codePoint so insert a
// replacement char (U+FFFD) and advance only 1 byte
codePoint = 0xFFFD
bytesPerSequence = 1
} else if (codePoint > 0xFFFF) {
// encode to utf16 (surrogate pair dance)
codePoint -= 0x10000
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
codePoint = 0xDC00 | codePoint & 0x3FF
}
res.push(codePoint)
i += bytesPerSequence
}
return decodeCodePointsArray(res)
}
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000
function decodeCodePointsArray (codePoints) {
var len = codePoints.length
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
}
// Decode in chunks to avoid "call stack size exceeded".
var res = ''
var i = 0
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
)
}
return res
}
function asciiSlice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; i++) {
ret += String.fromCharCode(buf[i] & 0x7F)
}
return ret
}
function binarySlice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; i++) {
ret += String.fromCharCode(buf[i])
}
return ret
}
function hexSlice (buf, start, end) {
var len = buf.length
if (!start || start < 0) start = 0
if (!end || end < 0 || end > len) end = len
var out = ''
for (var i = start; i < end; i++) {
out += toHex(buf[i])
}
return out
}
function utf16leSlice (buf, start, end) {
var bytes = buf.slice(start, end)
var res = ''
for (var i = 0; i < bytes.length; i += 2) {
res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
}
return res
}
Buffer.prototype.slice = function slice (start, end) {
var len = this.length
start = ~~start
end = end === undefined ? len : ~~end
if (start < 0) {
start += len
if (start < 0) start = 0
} else if (start > len) {
start = len
}
if (end < 0) {
end += len
if (end < 0) end = 0
} else if (end > len) {
end = len
}
if (end < start) end = start
var newBuf
if (Buffer.TYPED_ARRAY_SUPPORT) {
newBuf = this.subarray(start, end)
newBuf.__proto__ = Buffer.prototype
} else {
var sliceLen = end - start
newBuf = new Buffer(sliceLen, undefined)
for (var i = 0; i < sliceLen; i++) {
newBuf[i] = this[i + start]
}
}
return newBuf
}
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset (offset, ext, length) {
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
return val
}
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
checkOffset(offset, byteLength, this.length)
}
var val = this[offset + --byteLength]
var mul = 1
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul
}
return val
}
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ((this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
(this[offset + 3] * 0x1000000)
}
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] * 0x1000000) +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
}
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var i = byteLength
var mul = 1
var val = this[offset + --i]
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
if (!noAssert) checkOffset(offset, 1, this.length)
if (!(this[offset] & 0x80)) return (this[offset])
return ((0xff - this[offset] + 1) * -1)
}
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset] | (this[offset + 1] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset + 1] | (this[offset] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
}
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
(this[offset + 3])
}
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, false, 52, 8)
}
function checkInt (buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
if (offset + ext > buf.length) throw new RangeError('Index out of range')
}
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var mul = 1
var i = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
byteLength = byteLength | 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var i = byteLength - 1
var mul = 1
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
this[offset] = (value & 0xff)
return offset + 1
}
function objectWriteUInt16 (buf, value, offset, littleEndian) {
if (value < 0) value = 0xffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; i++) {
buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
(littleEndian ? i : 1 - i) * 8
}
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
return offset + 2
}
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
}
function objectWriteUInt32 (buf, value, offset, littleEndian) {
if (value < 0) value = 0xffffffff + value + 1
for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; i++) {
buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
}
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, true)
}
return offset + 4
}
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
return offset + 4
}
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = 0
var mul = 1
var sub = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) {
var limit = Math.pow(2, 8 * byteLength - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = byteLength - 1
var mul = 1
var sub = 0
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
if (value < 0) value = 0xff + value + 1
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
} else {
objectWriteUInt16(this, value, offset, true)
}
return offset + 2
}
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
} else {
objectWriteUInt16(this, value, offset, false)
}
return offset + 2
}
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
} else {
objectWriteUInt32(this, value, offset, true)
}
return offset + 4
}
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
value = +value
offset = offset | 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (value < 0) value = 0xffffffff + value + 1
if (Buffer.TYPED_ARRAY_SUPPORT) {
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
} else {
objectWriteUInt32(this, value, offset, false)
}
return offset + 4
}
function checkIEEE754 (buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) throw new RangeError('Index out of range')
if (offset < 0) throw new RangeError('Index out of range')
}
function writeFloat (buf, value, offset, littleEndian, noAssert) {
if (!noAssert) {
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
}
ieee754.write(buf, value, offset, littleEndian, 23, 4)
return offset + 4
}
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert)
}
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert)
}
function writeDouble (buf, value, offset, littleEndian, noAssert) {
if (!noAssert) {
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
ieee754.write(buf, value, offset, littleEndian, 52, 8)
return offset + 8
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert)
}
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert)
}
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
if (!start) start = 0
if (!end && end !== 0) end = this.length
if (targetStart >= target.length) targetStart = target.length
if (!targetStart) targetStart = 0
if (end > 0 && end < start) end = start
// Copy 0 bytes; we're done
if (end === start) return 0
if (target.length === 0 || this.length === 0) return 0
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError('targetStart out of bounds')
}
if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
if (end < 0) throw new RangeError('sourceEnd out of bounds')
// Are we oob?
if (end > this.length) end = this.length
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start
}
var len = end - start
var i
if (this === target && start < targetStart && targetStart < end) {
// descending copy from end
for (i = len - 1; i >= 0; i--) {
target[i + targetStart] = this[i + start]
}
} else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
// ascending copy from start
for (i = 0; i < len; i++) {
target[i + targetStart] = this[i + start]
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, start + len),
targetStart
)
}
return len
}
// Usage:
// buffer.fill(number[, offset[, end]])
// buffer.fill(buffer[, offset[, end]])
// buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
// Handle string cases:
if (typeof val === 'string') {
if (typeof start === 'string') {
encoding = start
start = 0
end = this.length
} else if (typeof end === 'string') {
encoding = end
end = this.length
}
if (val.length === 1) {
var code = val.charCodeAt(0)
if (code < 256) {
val = code
}
}
if (encoding !== undefined && typeof encoding !== 'string') {
throw new TypeError('encoding must be a string')
}
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
} else if (typeof val === 'number') {
val = val & 255
}
// Invalid ranges are not set to a default, so can range check early.
if (start < 0 || this.length < start || this.length < end) {
throw new RangeError('Out of range index')
}
if (end <= start) {
return this
}
start = start >>> 0
end = end === undefined ? this.length : end >>> 0
if (!val) val = 0
var i
if (typeof val === 'number') {
for (i = start; i < end; i++) {
this[i] = val
}
} else {
var bytes = Buffer.isBuffer(val)
? val
: utf8ToBytes(new Buffer(val, encoding).toString())
var len = bytes.length
for (i = 0; i < end - start; i++) {
this[i + start] = bytes[i % len]
}
}
return this
}
// HELPER FUNCTIONS
// ================
var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g
function base64clean (str) {
// Node strips out invalid characters like \n and \t from the string, base64-js does not
str = stringtrim(str).replace(INVALID_BASE64_RE, '')
// Node converts strings with length < 2 to ''
if (str.length < 2) return ''
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + '='
}
return str
}
function stringtrim (str) {
if (str.trim) return str.trim()
return str.replace(/^\s+|\s+$/g, '')
}
function toHex (n) {
if (n < 16) return '0' + n.toString(16)
return n.toString(16)
}
function utf8ToBytes (string, units) {
units = units || Infinity
var codePoint
var length = string.length
var leadSurrogate = null
var bytes = []
for (var i = 0; i < length; i++) {
codePoint = string.charCodeAt(i)
// is surrogate component
if (codePoint > 0xD7FF && codePoint < 0xE000) {
// last char was a lead
if (!leadSurrogate) {
// no lead yet
if (codePoint > 0xDBFF) {
// unexpected trail
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
} else if (i + 1 === length) {
// unpaired lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
}
// valid lead
leadSurrogate = codePoint
continue
}
// 2 leads in a row
if (codePoint < 0xDC00) {
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
leadSurrogate = codePoint
continue
}
// valid surrogate pair
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
} else if (leadSurrogate) {
// valid bmp char, but last char was a lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
}
leadSurrogate = null
// encode utf8
if (codePoint < 0x80) {
if ((units -= 1) < 0) break
bytes.push(codePoint)
} else if (codePoint < 0x800) {
if ((units -= 2) < 0) break
bytes.push(
codePoint >> 0x6 | 0xC0,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x10000) {
if ((units -= 3) < 0) break
bytes.push(
codePoint >> 0xC | 0xE0,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x110000) {
if ((units -= 4) < 0) break
bytes.push(
codePoint >> 0x12 | 0xF0,
codePoint >> 0xC & 0x3F | 0x80,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else {
throw new Error('Invalid code point')
}
}
return bytes
}
function asciiToBytes (str) {
var byteArray = []
for (var i = 0; i < str.length; i++) {
// Node's code seems to be doing this and not & 0x7F..
byteArray.push(str.charCodeAt(i) & 0xFF)
}
return byteArray
}
function utf16leToBytes (str, units) {
var c, hi, lo
var byteArray = []
for (var i = 0; i < str.length; i++) {
if ((units -= 2) < 0) break
c = str.charCodeAt(i)
hi = c >> 8
lo = c % 256
byteArray.push(lo)
byteArray.push(hi)
}
return byteArray
}
function base64ToBytes (str) {
return base64.toByteArray(base64clean(str))
}
function blitBuffer (src, dst, offset, length) {
for (var i = 0; i < length; i++) {
if ((i + offset >= dst.length) || (i >= src.length)) break
dst[i + offset] = src[i]
}
return i
}
function isnan (val) {
return val !== val // eslint-disable-line no-self-compare
}
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"base64-js":1,"ieee754":15,"isarray":16}],4:[function(require,module,exports){
// Use strict mode (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Strict_mode)
"use strict";
// Requires
var Typo = require("typo-js");
// Create function
function CodeMirrorSpellChecker(options) {
// Initialize
options = options || {};
// Verify
if(typeof options.codeMirrorInstance !== "function" || typeof options.codeMirrorInstance.defineMode !== "function") {
console.log("CodeMirror Spell Checker: You must provide an instance of CodeMirror via the option `codeMirrorInstance`");
return;
}
// 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;
};
}
// Define the new mode
options.codeMirrorInstance.defineMode("spell-checker", function(config) {
// Load AFF/DIC data
if(!CodeMirrorSpellChecker.aff_loading) {
CodeMirrorSpellChecker.aff_loading = true;
var xhr_aff = new XMLHttpRequest();
xhr_aff.open("GET", "https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.aff", true);
xhr_aff.onload = function() {
if(xhr_aff.readyState === 4 && xhr_aff.status === 200) {
CodeMirrorSpellChecker.aff_data = xhr_aff.responseText;
CodeMirrorSpellChecker.num_loaded++;
if(CodeMirrorSpellChecker.num_loaded == 2) {
CodeMirrorSpellChecker.typo = new Typo("en_US", CodeMirrorSpellChecker.aff_data, CodeMirrorSpellChecker.dic_data, {
platform: "any"
});
}
}
};
xhr_aff.send(null);
}
if(!CodeMirrorSpellChecker.dic_loading) {
CodeMirrorSpellChecker.dic_loading = true;
var xhr_dic = new XMLHttpRequest();
xhr_dic.open("GET", "https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.dic", true);
xhr_dic.onload = function() {
if(xhr_dic.readyState === 4 && xhr_dic.status === 200) {
CodeMirrorSpellChecker.dic_data = xhr_dic.responseText;
CodeMirrorSpellChecker.num_loaded++;
if(CodeMirrorSpellChecker.num_loaded == 2) {
CodeMirrorSpellChecker.typo = new Typo("en_US", CodeMirrorSpellChecker.aff_data, CodeMirrorSpellChecker.dic_data, {
platform: "any"
});
}
}
};
xhr_dic.send(null);
}
// Define what separates a word
var rx_word = "!\"#$%&()*+,-./:;<=>?@[\\]^_`{|}~ ";
// Create the overlay and such
var overlay = {
token: function(stream) {
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(CodeMirrorSpellChecker.typo && !CodeMirrorSpellChecker.typo.check(word))
return "spell-error"; // CSS class: cm-spell-error
return null;
}
};
var mode = options.codeMirrorInstance.getMode(
config, config.backdrop || "text/plain"
);
return options.codeMirrorInstance.overlayMode(mode, overlay, true);
});
}
// Initialize data globally to reduce memory consumption
CodeMirrorSpellChecker.num_loaded = 0;
CodeMirrorSpellChecker.aff_loading = false;
CodeMirrorSpellChecker.dic_loading = false;
CodeMirrorSpellChecker.aff_data = "";
CodeMirrorSpellChecker.dic_data = "";
CodeMirrorSpellChecker.typo;
// Export
module.exports = CodeMirrorSpellChecker;
},{"typo-js":18}],5:[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":10}],6:[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) {
CodeMirror.defineOption("placeholder", "", function(cm, val, old) {
var prev = old && old != CodeMirror.Init;
if (val && !prev) {
cm.on("blur", onBlur);
cm.on("change", onChange);
cm.on("swapDoc", onChange);
onChange(cm);
} else if (!val && prev) {
cm.off("blur", onBlur);
cm.off("change", onChange);
cm.off("swapDoc", onChange);
clearPlaceholder(cm);
var wrapper = cm.getWrapperElement();
wrapper.className = wrapper.className.replace(" CodeMirror-empty", "");
}
if (val && !cm.hasFocus()) onBlur(cm);
});
function clearPlaceholder(cm) {
if (cm.state.placeholder) {
cm.state.placeholder.parentNode.removeChild(cm.state.placeholder);
cm.state.placeholder = null;
}
}
function setPlaceholder(cm) {
clearPlaceholder(cm);
var elt = cm.state.placeholder = document.createElement("pre");
elt.style.cssText = "height: 0; overflow: visible";
elt.className = "CodeMirror-placeholder";
var placeHolder = cm.getOption("placeholder")
if (typeof placeHolder == "string") placeHolder = document.createTextNode(placeHolder)
elt.appendChild(placeHolder)
cm.display.lineSpace.insertBefore(elt, cm.display.lineSpace.firstChild);
}
function onBlur(cm) {
if (isEmpty(cm)) setPlaceholder(cm);
}
function onChange(cm) {
var wrapper = cm.getWrapperElement(), empty = isEmpty(cm);
wrapper.className = wrapper.className.replace(" CodeMirror-empty", "") + (empty ? " CodeMirror-empty" : "");
if (empty) setPlaceholder(cm);
else clearPlaceholder(cm);
}
function isEmpty(cm) {
return (cm.lineCount() === 1) && (cm.getLine(0) === "");
}
});
},{"../../lib/codemirror":10}],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"));
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":10}],8:[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":10}],9:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
// Because sometimes you need to mark the selected *text*.
//
// Adds an option 'styleSelectedText' which, when enabled, gives
// selected text the CSS class given as option value, or
// "CodeMirror-selectedtext" when the value is not a string.
(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("styleSelectedText", false, function(cm, val, old) {
var prev = old && old != CodeMirror.Init;
if (val && !prev) {
cm.state.markedSelection = [];
cm.state.markedSelectionStyle = typeof val == "string" ? val : "CodeMirror-selectedtext";
reset(cm);
cm.on("cursorActivity", onCursorActivity);
cm.on("change", onChange);
} else if (!val && prev) {
cm.off("cursorActivity", onCursorActivity);
cm.off("change", onChange);
clear(cm);
cm.state.markedSelection = cm.state.markedSelectionStyle = null;
}
});
function onCursorActivity(cm) {
cm.operation(function() { update(cm); });
}
function onChange(cm) {
if (cm.state.markedSelection.length)
cm.operation(function() { clear(cm); });
}
var CHUNK_SIZE = 8;
var Pos = CodeMirror.Pos;
var cmp = CodeMirror.cmpPos;
function coverRange(cm, from, to, addAt) {
if (cmp(from, to) == 0) return;
var array = cm.state.markedSelection;
var cls = cm.state.markedSelectionStyle;
for (var line = from.line;;) {
var start = line == from.line ? from : Pos(line, 0);
var endLine = line + CHUNK_SIZE, atEnd = endLine >= to.line;
var end = atEnd ? to : Pos(endLine, 0);
var mark = cm.markText(start, end, {className: cls});
if (addAt == null) array.push(mark);
else array.splice(addAt++, 0, mark);
if (atEnd) break;
line = endLine;
}
}
function clear(cm) {
var array = cm.state.markedSelection;
for (var i = 0; i < array.length; ++i) array[i].clear();
array.length = 0;
}
function reset(cm) {
clear(cm);
var ranges = cm.listSelections();
for (var i = 0; i < ranges.length; i++)
coverRange(cm, ranges[i].from(), ranges[i].to());
}
function update(cm) {
if (!cm.somethingSelected()) return clear(cm);
if (cm.listSelections().length > 1) return reset(cm);
var from = cm.getCursor("start"), to = cm.getCursor("end");
var array = cm.state.markedSelection;
if (!array.length) return coverRange(cm, from, to);
var coverStart = array[0].find(), coverEnd = array[array.length - 1].find();
if (!coverStart || !coverEnd || to.line - from.line < CHUNK_SIZE ||
cmp(from, coverEnd.to) >= 0 || cmp(to, coverStart.from) <= 0)
return reset(cm);
while (cmp(from, coverStart.from) > 0) {
array.shift().clear();
coverStart = array[0].find();
}
if (cmp(from, coverStart.from) < 0) {
if (coverStart.to.line - from.line < CHUNK_SIZE) {
array.shift().clear();
coverRange(cm, from, coverStart.to, 0);
} else {
coverRange(cm, from, coverStart.from, 0);
}
}
while (cmp(to, coverEnd.to) < 0) {
array.pop().clear();
coverEnd = array[array.length - 1].find();
}
if (cmp(to, coverEnd.to) > 0) {
if (to.line - coverEnd.from.line < CHUNK_SIZE) {
array.pop().clear();
coverRange(cm, coverEnd.from, to);
} else {
coverRange(cm, coverEnd.to, to);
}
}
}
});
},{"../../lib/codemirror":10}],10:[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 || window).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 chromeOS = /\bCrOS\b/.test(userAgent);
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.checkedZeroWidth = 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.checkedZeroWidth && measure.clientHeight > 0) {
if (sWidth == 0) this.zeroWidthHack();
this.checkedZeroWidth = true;
}
return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0};
},
setScrollLeft: function(pos) {
if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos;
if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz);
},
setScrollTop: function(pos) {
if (this.vert.scrollTop != pos) this.vert.scrollTop = pos;
if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert);
},
zeroWidthHack: function() {
var w = mac && !mac_geMountainLion ? "12px" : "18px";
this.horiz.style.height = this.vert.style.width = w;
this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none";
this.disableHoriz = new Delayed;
this.disableVert = new Delayed;
},
enableZeroWidthBar: function(bar, delay) {
bar.style.pointerEvents = "auto";
function maybeDisable() {
// To find out whether the scrollbar is still visible, we
// check whether the element under the pixel in the bottom
// left corner of the scrollbar box is the scrollbar box
// itself (when the bar is still visible) or its filler child
// (when the bar is hidden). If it is still visible, we keep
// it enabled, if it's hidden, we disable pointer events.
var box = bar.getBoundingClientRect();
var elt = document.elementFromPoint(box.left + 1, box.bottom - 1);
if (elt != bar) bar.style.pointerEvents = "none";
else delay.set(1000, maybeDisable);
}
delay.set(1000, maybeDisable);
},
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";
d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
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);
updateScrollbars(cm, barMeasure);
setDocumentHeight(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);
updateScrollbars(cm, barMeasure);
setDocumentHeight(cm, barMeasure);
update.finish();
}
}
function setDocumentHeight(cm, measure) {
cm.display.sizer.style.minHeight = measure.docHeight + "px";
cm.display.heightForcer.style.top = measure.docHeight + "px";
cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "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.parentNode.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); }
}
// This will be set to a {lineWise: bool, text: [string]} object, 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.text.join("\n") == inserted) {
if (sel.ranges.length % lastCopied.text.length == 0) {
multiPaste = [];
for (var i = 0; i < lastCopied.text.length; i++)
multiPaste.push(doc.splitLines(lastCopied.text[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));
else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
from = to = Pos(from.line, 0)
}
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 (!cm.isReadOnly() && !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 (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
cm.state.pasteIncoming = true;
input.fastPoll();
});
function prepareCopyCut(e) {
if (signalDOMEvent(cm, e)) return
if (cm.somethingSelected()) {
lastCopied = {lineWise: false, text: cm.getSelections()};
if (input.inaccurateSelection) {
input.prevInput = "";
input.inaccurateSelection = false;
te.value = lastCopied.text.join("\n");
selectInput(te);
}
} else if (!cm.options.lineWiseCopyCut) {
return;
} else {
var ranges = copyableRanges(cm);
lastCopied = {lineWise: true, text: 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) || signalDOMEvent(cm, 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) ||
cm.isReadOnly() || 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, oldWrapperCSS = input.wrapper.style.cssText;
input.wrapper.style.cssText = "position: absolute"
var wrapperBox = input.wrapper.getBoundingClientRect()
te.style.cssText = "position: absolute; width: 30px; height: 30px; top: " + (e.clientY - wrapperBox.top - 5) +
"px; left: " + (e.clientX - wrapperBox.left - 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.cssText = oldWrapperCSS
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) {
if (!signalDOMEvent(cm, 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 (cm.isReadOnly() || !input.pollContent())
runInOp(input.cm, function() {regChange(cm);});
});
function onCopyCut(e) {
if (signalDOMEvent(cm, e)) return
if (cm.somethingSelected()) {
lastCopied = {lineWise: false, text: cm.getSelections()};
if (e.type == "cut") cm.replaceSelection("", null, "cut");
} else if (!cm.options.lineWiseCopyCut) {
return;
} else {
var ranges = copyableRanges(cm);
lastCopied = {lineWise: true, text: 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.text.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.text.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, takeFocus) {
if (!info || !this.cm.display.view.length) return;
if (info.focus || takeFocus) 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) {
if (!gecko && this.cm.state.focused) {
sel.collapse(start.node, start.offset);
if (!rng.collapsed) sel.addRange(rng);
} else {
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 (this.cm.isReadOnly())
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 (!this.cm.isReadOnly())
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, options) {
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));
},
origin: options && options.origin
};
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, options);
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 old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i];
var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear);
var newHead = skipAtomic(doc, range.head, old && old.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;
}
function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
var line = getLine(doc, pos.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 <= pos.ch : sp.from < pos.ch)) &&
(sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
if (mayClear) {
signal(m, "beforeCursorEnter");
if (m.explicitlyCleared) {
if (!line.markedSpans) break;
else {--i; continue;}
}
}
if (!m.atomic) continue;
if (oldPos) {
var near = m.find(dir < 0 ? 1 : -1), diff;
if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null);
if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
return skipAtomicInner(doc, near, pos, dir, mayClear);
}
var far = m.find(dir < 0 ? -1 : 1);
if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
far = movePos(doc, far, dir, far.line == pos.line ? line : null);
return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null;
}
}
return pos;
}
// Ensure a given position is not inside an atomic range.
function skipAtomic(doc, pos, oldPos, bias, mayClear) {
var dir = bias || 1;
var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
(!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
(!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true));
if (!found) {
doc.cantEdit = true;
return Pos(doc.first, 0);
}
return found;
}
function movePos(doc, pos, dir, line) {
if (dir < 0 && pos.ch == 0) {
if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1));
else return null;
} else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0);
else return null;
} else {
return new Pos(pos.line, pos.ch + dir);
}
}
// 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];
if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue;
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(op.focus);
}
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;
}
var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())
if (op.preparedSelection)
cm.display.input.showSelection(op.preparedSelection, takeFocus);
if (op.updatedDisplay || op.startHeight != cm.doc.height)
updateScrollbars(cm, op.barMeasure);
if (op.updatedDisplay)
setDocumentHeight(cm, op.barMeasure);
if (op.selectionChanged) restartBlink(cm);
if (cm.state.focused && op.updateInput)
cm.display.input.reset(op.typing);
if (takeFocus) 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 - display.scroller.clientWidth, 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 (!signalDOMEvent(cm, e) && !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(e) {if (!signalDOMEvent(cm, e)) { 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 (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) 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 && !cm.isReadOnly() &&
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 (chromeOS ? e.shiftKey && e.metaKey : 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) {
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];
signal(cm, type, cm, line, gutter, e);
return e_defaultPrevented(e);
}
}
}
function clickInGutter(cm, e) {
return gutterEvent(cm, e, "gutterClick", true);
}
// 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 || cm.isReadOnly()) 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());
e.dataTransfer.effectAllowed = "copyMove"
// 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 (cm.isReadOnly()) 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);
}
// 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);
function findNextLine() {
var l = line + dir;
if (l < doc.first || l >= doc.first + doc.size) return 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 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), pos, origDir, true);
if (!cmp(pos, result)) 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(); },
isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit); },
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", /[\u0000-\u001f\u007f\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(spaceStr(tabSize - col % tabSize));
}
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);
});
},
openLine: function(cm) {cm.replaceSelection("\n", "start")},
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",
"Ctrl-O": "openLine"
};
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 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
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.parentNode.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) {
var last = builder.content.lastChild
if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
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 = [], endStyles
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 = (css ? css + ";" : "") + m.css;
if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to)
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 (endStyles) for (var j = 0; j < endStyles.length; j += 2)
if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j]
if (!collapsed || collapsed.from == pos) for (var j = 0; j < foundBookmarks.length; ++j)
buildCollapsedSpan(builder, 0, foundBookmarks[j]);
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 (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) {
// To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
// Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
var remaining = child.lines.length % 25 + 25
for (var pos = remaining; pos < child.lines.length;) {
var leaf = new LeafChunk(child.lines.slice(pos, pos += 25));
child.height -= leaf.height;
this.children.splice(++i, 0, leaf);
leaf.parent = this;
}
child.lines = child.lines.slice(0, remaining);
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;
this.extend = false;
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) {
var heads = map(this.sel.ranges, f);
extendSelections(this, clipPosArray(this, heads), 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, options && options.type || "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 (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
span.from == null && lineNo != from.line ||
span.from != null && 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, sepSize = this.lineSeparator().length;
this.iter(function(line) {
var sz = line.text.length + sepSize;
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;
var sepSize = this.lineSeparator().length;
this.iter(this.first, coords.line, function (line) {
index += line.text.length + sepSize;
});
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 = "5.15.2";
return CodeMirror;
});
},{}],11:[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":8,"../../lib/codemirror":10,"../markdown/markdown":12}],12:[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 htmlMode = CodeMirror.getMode(cmCfg, "text/html");
var htmlModeMissing = htmlMode.name == "null"
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;
// Allow token types to be overridden by user-provided token types.
if (modeCfg.tokenTypeOverrides === undefined)
modeCfg.tokenTypeOverrides = {};
var tokenTypes = {
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"
};
for (var tokenType in tokenTypes) {
if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {
tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];
}
}
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 (htmlModeMissing && 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;
} else { // No longer a list
state.list = false;
}
}
var match = null;
if (state.indentationDiff >= 4) {
stream.skipToEnd();
if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {
state.indentation -= 4;
state.indentedCode = true;
return tokenTypes.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 tokenTypes.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;
// While this list item's marker's indentation
// is less than the deepest list item's content's indentation,
// pop the deepest list item indentation off the stack.
while (state.listStack && stream.column() < state.listStack[state.listStack.length - 1]) {
state.listStack.pop();
}
// Add this list item's content's indentation to the stack
state.listStack.push(state.indentation);
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 = CodeMirror.startState(state.localMode);
state.f = state.block = local;
if (modeCfg.highlightFormatting) state.formatting = "code-block";
state.code = -1
return getType(state);
}
return switchInline(stream, state, state.inline);
}
function htmlBlock(stream, state) {
var style = htmlMode.token(stream, state.htmlState);
if (!htmlModeMissing) {
var inner = CodeMirror.innerMode(htmlMode, state.htmlState)
if ((inner.mode.name == "xml" && inner.state.tagStart === null &&
(!inner.state.context && inner.state.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 (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 tokenTypes.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 = 1
var returnType = getType(state);
state.code = 0
return returnType;
}
// Inline
function getType(state) {
var styles = [];
if (state.formatting) {
styles.push(tokenTypes.formatting);
if (typeof state.formatting === "string") state.formatting = [state.formatting];
for (var i = 0; i < state.formatting.length; i++) {
styles.push(tokenTypes.formatting + "-" + state.formatting[i]);
if (state.formatting[i] === "header") {
styles.push(tokenTypes.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(tokenTypes.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(tokenTypes.linkHref, "url");
} else { // Only apply inline styles to non-url text
if (state.strong) { styles.push(tokenTypes.strong); }
if (state.em) { styles.push(tokenTypes.em); }
if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }
if (state.linkText) { styles.push(tokenTypes.linkText); }
if (state.code) { styles.push(tokenTypes.code); }
}
if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + "-" + state.header); }
if (state.quote) {
styles.push(tokenTypes.quote);
// Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
styles.push(tokenTypes.quote + "-" + state.quote);
} else {
styles.push(tokenTypes.quote + "-" + modeCfg.maxBlockquoteDepth);
}
}
if (state.list !== false) {
var listMod = (state.listStack.length - 1) % 3;
if (!listMod) {
styles.push(tokenTypes.list1);
} else if (listMod === 1) {
styles.push(tokenTypes.list2);
} else {
styles.push(tokenTypes.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(/^#+$/, true)) {
if (modeCfg.highlightFormatting) state.formatting = "header";
return getType(state);
}
// Get sol() value now, before character is consumed
var sol = stream.sol();
var ch = stream.next();
// Matches link titles present on next line
if (state.linkTitle) {
state.linkTitle = false;
var matchCh = ch;
if (ch === '(') {
matchCh = ')';
}
matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
if (stream.match(new RegExp(regex), true)) {
return tokenTypes.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";
stream.eatWhile('`');
var count = stream.current().length
if (state.code == 0) {
state.code = count
return getType(state)
} else if (count == state.code) { // Must be exact
var t = getType(state)
state.code = 0
return t
} else {
state.formatting = previousFormatting
return getType(state)
}
} else if (state.code) {
return getType(state);
}
if (ch === '\\') {
stream.next();
if (modeCfg.highlightFormatting) {
var type = getType(state);
var formattingEscape = tokenTypes.formatting + "-escape";
return type ? type + " " + formattingEscape : formattingEscape;
}
}
if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
stream.match(/\[[^\]]*\]/);
state.inline = state.f = linkHref;
return tokenTypes.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 + tokenTypes.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 + tokenTypes.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 + tokenTypes.linkInline;
}
stream.match(/^[^>]+/, true);
return tokenTypes.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 === "(" ? ")" : "]", 0);
if (modeCfg.highlightFormatting) state.formatting = "link-string";
state.linkHref = true;
return getType(state);
}
return 'error';
}
var linkRE = {
")": /^(?:[^\\\(\)]|\\.|\((?:[^\\\(\)]|\\.)*\))*?(?=\))/,
"]": /^(?:[^\\\[\]]|\\.|\[(?:[^\\\[\\]]|\\.)*\])*?(?=\])/
}
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;
}
stream.match(linkRE[endChar])
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 tokenTypes.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 tokenTypes.linkHref + " url";
}
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,
code: 0,
em: false,
strong: false,
header: 0,
hr: false,
taskList: false,
list: false,
listStack: [],
quote: 0,
trailingSpace: 0,
trailingSpaceNewLine: false,
strikethrough: false,
fencedChars: null
};
},
copyState: function(s) {
return {
f: s.f,
prevLine: s.prevLine,
thisLine: s.thisLine,
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,
listStack: s.listStack.slice(0),
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*$/, true) || forceBlankLine) {
blankLine(state);
if (!forceBlankLine) return null
state.prevLine = null
}
state.prevLine = state.thisLine
state.thisLine = stream
// Reset state.taskList
state.taskList = false;
// Reset state.trailingSpace
state.trailingSpace = 0;
state.trailingSpaceNewLine = false;
state.f = state.block;
var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, ' ').length;
state.indentationDiff = Math.min(indentation - state.indentation, 4);
state.indentation = state.indentation + state.indentationDiff;
if (indentation > 0) return null;
}
return state.f(stream, state);
},
innerMode: function(state) {
if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
if (state.localState) return {state: state.localState, mode: state.localMode};
return {state: state, mode: mode};
},
blankLine: blankLine,
getType: getType,
fold: "markdown"
};
return mode;
}, "xml");
CodeMirror.defineMIME("text/x-markdown", "markdown");
});
},{"../../lib/codemirror":10,"../meta":13,"../xml/xml":14}],13:[function(require,module,exports){
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../lib/codemirror"));
else if (typeof define == "function" && define.amd) // AMD
define(["../lib/codemirror"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
CodeMirror.modeInfo = [
{name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
{name: "PGP", mimes: ["application/pgp", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["pgp"]},
{name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
{name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/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", "cljc", "cljx"]},
{name: "ClojureScript", mime: "text/x-clojurescript", mode: "clojure", ext: ["cljs"]},
{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$/},
{name: "CoffeeScript", mime: "text/x-coffeescript", mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
{name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
{name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
{name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
{name: "Crystal", mime: "text/x-crystal", mode: "crystal", ext: ["cr"]},
{name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
{name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
{name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
{name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
{name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
{name: "Django", mime: "text/x-django", mode: "django"},
{name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
{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: "edn", mime: "application/edn", mode: "clojure", ext: ["edn"]},
{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: "FCL", mime: "text/x-fcl", mode: "fcl"},
{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", "gradle"]},
{name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
{name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
{name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]},
{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: "JSX", mime: "text/jsx", mode: "jsx", ext: ["jsx"]},
{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", ext: ["mps"]},
{name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
{name: "mbox", mime: "application/mbox", mode: "mbox", ext: ["mbox"]},
{name: "MySQL", mime: "text/x-mysql", mode: "sql"},
{name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
{name: "NSIS", mime: "text/x-nsis", mode: "nsis", ext: ["nsh", "nsi"]},
{name: "NTriples", mime: "text/n-triples", mode: "ntriples", ext: ["nt"]},
{name: "Objective C", mime: "text/x-objectivec", mode: "clike", ext: ["m", "mm"], alias: ["objective-c", "objc"]},
{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: "PowerShell", mime: "application/x-powershell", mode: "powershell", ext: ["ps1", "psd1", "psm1"]},
{name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
{name: "ProtoBuf", mime: "text/x-protobuf", mode: "protobuf", ext: ["proto"]},
{name: "Python", mime: "text/x-python", mode: "python", ext: ["BUILD", "bzl", "py", "pyw"], file: /^(BUCK|BUILD)$/},
{name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
{name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
{name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r"], alias: ["rscript"]},
{name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
{name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
{name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
{name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
{name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
{name: "SAS", mime: "text/x-sas", mode: "sas", ext: ["sas"]},
{name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
{name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
{name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
{name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
{name: "Shell", mime: "text/x-sh", mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"], file: /^PKGBUILD$/},
{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: "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: "text/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: "Web IDL", mime: "text/x-webidl", mode: "webidl", ext: ["webidl"]},
{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: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
{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":10}],14:[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 htmlConfig = {
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
}
var xmlConfig = {
autoSelfClosers: {},
implicitlyClosed: {},
contextGrabbers: {},
doNotIndent: {},
allowUnquoted: false,
allowMissing: false,
caseFold: false
}
CodeMirror.defineMode("xml", function(editorConf, config_) {
var indentUnit = editorConf.indentUnit
var config = {}
var defaults = config_.htmlMode ? htmlConfig : xmlConfig
for (var prop in defaults) config[prop] = defaults[prop]
for (var prop in config_) config[prop] = config_[prop]
// 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 (config.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 (!config.contextGrabbers.hasOwnProperty(parentTagName) ||
!config.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 &&
config.implicitlyClosed.hasOwnProperty(state.context.tagName))
popContext(state);
if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {
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" ||
config.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 (!config.allowMissing) setStyle = "error";
return attrState(type, stream, state);
}
function attrValueState(type, stream, state) {
if (type == "string") return attrContinuedState;
if (type == "word" && config.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(baseIndent) {
var state = {tokenize: inText,
state: baseState,
indented: baseIndent || 0,
tagName: null, tagStart: null,
context: null}
if (baseIndent != null) state.baseIndent = baseIndent
return state
},
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 (config.multilineTagIndentPastTag !== false)
return state.tagStart + state.tagName.length + 2;
else
return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);
}
if (config.alignCDATA && /<!\[CDATA\[/.test(textAfter)) return 0;
var tagAfter = textAfter && /^<(\/)?([\w_:\.-]*)/.exec(textAfter);
if (tagAfter && tagAfter[1]) { // Closing tag spotted
while (context) {
if (context.tagName == tagAfter[2]) {
context = context.prev;
break;
} else if (config.implicitlyClosed.hasOwnProperty(context.tagName)) {
context = context.prev;
} else {
break;
}
}
} else if (tagAfter) { // Opening tag spotted
while (context) {
var grabbers = config.contextGrabbers[context.tagName];
if (grabbers && grabbers.hasOwnProperty(tagAfter[2]))
context = context.prev;
else
break;
}
}
while (context && context.prev && !context.startOfLine)
context = context.prev;
if (context) return context.indent + indentUnit;
else return state.baseIndent || 0;
},
electricInput: /<\/[\s\w:]+>$/,
blockCommentStart: "<!--",
blockCommentEnd: "-->",
configuration: config.htmlMode ? "html" : "xml",
helperType: config.htmlMode ? "html" : "xml",
skipAttribute: function(state) {
if (state.state == attrValueState)
state.state = attrState
}
};
});
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":10}],15:[function(require,module,exports){
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = nBytes * 8 - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = nBytes * 8 - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
value = Math.abs(value)
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = (value * c - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128
}
},{}],16:[function(require,module,exports){
var toString = {}.toString;
module.exports = Array.isArray || function (arr) {
return toString.call(arr) == '[object Array]';
};
},{}],17:[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', /<!--[\s\S]*?-->/)
('closed', /<(tag)[\s\S]+?<\/\1>/)
('closing', /<tag(?:"[^"]*"|'[^']*'|[^'">])*?>/)
(/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: /^<!--[\s\S]*?-->|^<\/?\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]+?(?=[\\<!\[_*`]| {2,}\n|$)/
};
inline._inside = /(?:\[[^\]]*\]|[^\[\]]|\](?=[^\[]*\]))*/;
inline._href = /\s*<?([\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 && /^<a /i.test(cap[0])) {
this.inLink = true;
} else if (this.inLink && /^<\/a>/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 '<pre><code>'
+ (escaped ? code : escape(code, true))
+ '\n</code></pre>';
}
return '<pre><code class="'
+ this.options.langPrefix
+ escape(lang, true)
+ '">'
+ (escaped ? code : escape(code, true))
+ '\n</code></pre>\n';
};
Renderer.prototype.blockquote = function(quote) {
return '<blockquote>\n' + quote + '</blockquote>\n';
};
Renderer.prototype.html = function(html) {
return html;
};
Renderer.prototype.heading = function(text, level, raw) {
return '<h'
+ level
+ ' id="'
+ this.options.headerPrefix
+ raw.toLowerCase().replace(/[^\w]+/g, '-')
+ '">'
+ text
+ '</h'
+ level
+ '>\n';
};
Renderer.prototype.hr = function() {
return this.options.xhtml ? '<hr/>\n' : '<hr>\n';
};
Renderer.prototype.list = function(body, ordered) {
var type = ordered ? 'ol' : 'ul';
return '<' + type + '>\n' + body + '</' + type + '>\n';
};
Renderer.prototype.listitem = function(text) {
return '<li>' + text + '</li>\n';
};
Renderer.prototype.paragraph = function(text) {
return '<p>' + text + '</p>\n';
};
Renderer.prototype.table = function(header, body) {
return '<table>\n'
+ '<thead>\n'
+ header
+ '</thead>\n'
+ '<tbody>\n'
+ body
+ '</tbody>\n'
+ '</table>\n';
};
Renderer.prototype.tablerow = function(content) {
return '<tr>\n' + content + '</tr>\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 '<strong>' + text + '</strong>';
};
Renderer.prototype.em = function(text) {
return '<em>' + text + '</em>';
};
Renderer.prototype.codespan = function(text) {
return '<code>' + text + '</code>';
};
Renderer.prototype.br = function() {
return this.options.xhtml ? '<br/>' : '<br>';
};
Renderer.prototype.del = function(text) {
return '<del>' + text + '</del>';
};
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 = '<a href="' + href + '"';
if (title) {
out += ' title="' + title + '"';
}
out += '>' + text + '</a>';
return out;
};
Renderer.prototype.image = function(href, title, text) {
var out = '<img src="' + href + '" alt="' + text + '"';
if (title) {
out += ' title="' + title + '"';
}
out += this.options.xhtml ? '/>' : '>';
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, '&amp;')
.replace(/</g, '&lt;')
.replace(/>/g, '&gt;')
.replace(/"/g, '&quot;')
.replace(/'/g, '&#39;');
}
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 '<p>An error occured:</p><pre>'
+ escape(e.message + '', true)
+ '</pre>';
}
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 : {})
},{}],18:[function(require,module,exports){
(function (Buffer,__dirname){
'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 Typo.js is being used in a Chrome extension, the .aff
* file will be loaded automatically from
* lib/typo/dictionaries/[dictionary]/[dictionary].aff
* In other environments, it will be loaded from
* [settings.dictionaryPath]/dictionaries/[dictionary]/[dictionary].aff
* @param {String} [wordsData] The data from the dictionary's .dic file. If omitted
* and Typo.js is being used in a Chrome extension, the .dic
* file will be loaded automatically from
* lib/typo/dictionaries/[dictionary]/[dictionary].dic
* In other environments, it will be loaded from
* [settings.dictionaryPath]/dictionaries/[dictionary]/[dictionary].dic
* @param {Object} [settings] Constructor settings. Available properties are:
* {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 || {};
this.dictionary = null;
this.rules = {};
this.dictionaryTable = {};
this.compoundRules = [];
this.compoundRuleCodes = {};
this.replacementTable = [];
this.flags = settings.flags || {};
if (dictionary) {
this.dictionary = dictionary;
if (typeof window !== 'undefined' && 'chrome' in window && 'extension' in window.chrome && 'getURL' in window.chrome.extension) {
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 {
if (settings.dictionaryPath) {
var path = settings.dictionaryPath;
}
else if (typeof __dirname !== 'undefined') {
var path = __dirname + '/dictionaries';
}
else {
var path = './dictionaries';
}
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 = "utf8";
if (typeof XMLHttpRequest !== 'undefined') {
var req = new XMLHttpRequest();
req.open("GET", path, false);
if (req.overrideMimeType)
req.overrideMimeType("text/plain; charset=" + charset);
req.send(null);
return req.responseText;
}
else if (typeof require !== 'undefined') {
// Node.js
var fs = require("fs");
try {
if (fs.existsSync(path)) {
var stats = fs.statSync(path);
var fileDescriptor = fs.openSync(path, 'r');
var buffer = new Buffer(stats.size);
fs.readSync(fileDescriptor, buffer, 0, buffer.length, null);
return buffer.toString(charset, 0, buffer.length);
}
else {
console.log("Path " + path + " does not exist.");
}
} catch (e) {
console.log(e);
return '';
}
}
},
/**
* 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;
},
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 if (typeof ruleCodes === 'object') { // this.dictionary['hasOwnProperty'] will be a function.
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);
}
};
// Support for use as a node.js module.
if (typeof module !== 'undefined') {
module.exports = Typo;
}
}).call(this,require("buffer").Buffer,"/node_modules/typo-js")
},{"buffer":3,"fs":2}],19:[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":10}],20:[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/addon/display/placeholder.js");
require("codemirror/addon/selection/mark-selection.js");
require("codemirror/mode/gfm/gfm.js");
require("codemirror/mode/xml/xml.js");
var CodeMirrorSpellChecker = require("codemirror-spell-checker");
var marked = require("marked");
// Some variables
var isMac = /Mac/.test(navigator.platform);
// Mapping of actions that can be bound to keyboard shortcuts or toolbar buttons
var bindings = {
"toggleBold": toggleBold,
"toggleItalic": toggleItalic,
"drawLink": drawLink,
"toggleHeadingSmaller": toggleHeadingSmaller,
"toggleHeadingBigger": toggleHeadingBigger,
"drawImage": drawImage,
"toggleBlockquote": toggleBlockquote,
"toggleOrderedList": toggleOrderedList,
"toggleUnorderedList": toggleUnorderedList,
"toggleCodeBlock": toggleCodeBlock,
"togglePreview": togglePreview,
"toggleStrikethrough": toggleStrikethrough,
"toggleHeading1": toggleHeading1,
"toggleHeading2": toggleHeading2,
"toggleHeading3": toggleHeading3,
"cleanBlock": cleanBlock,
"drawTable": drawTable,
"drawHorizontalRule": drawHorizontalRule,
"undo": undo,
"redo": redo,
"toggleSideBySide": toggleSideBySide,
"toggleFullScreen": toggleFullScreen
};
var shortcuts = {
"toggleBold": "Cmd-B",
"toggleItalic": "Cmd-I",
"drawLink": "Cmd-K",
"toggleHeadingSmaller": "Cmd-H",
"toggleHeadingBigger": "Shift-Cmd-H",
"cleanBlock": "Cmd-E",
"drawImage": "Cmd-Alt-I",
"toggleBlockquote": "Cmd-'",
"toggleOrderedList": "Cmd-Alt-L",
"toggleUnorderedList": "Cmd-L",
"toggleCodeBlock": "Cmd-Alt-C",
"togglePreview": "Cmd-P",
"toggleSideBySide": "F9",
"toggleFullScreen": "F11"
};
var getBindingName = function(f) {
for(var key in bindings) {
if(bindings[key] === f) {
return key;
}
}
return null;
};
var isMobile = function() {
var check = false;
(function(a) {
if(/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino|android|ipad|playbook|silk/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) check = true;
})(navigator.userAgent || navigator.vendor || window.opera);
return check;
};
/**
* 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, shortcuts) {
options = options || {};
var el = document.createElement("a");
enableTooltips = (enableTooltips == undefined) ? true : enableTooltips;
if(options.title && enableTooltips) {
el.title = createTootlip(options.title, options.action, shortcuts);
if(isMac) {
el.title = el.title.replace("Ctrl", "⌘");
el.title = el.title.replace("Alt", "⌥");
}
}
el.tabIndex = -1;
el.className = options.className;
return el;
}
function createSep() {
var el = document.createElement("i");
el.className = "separator";
el.innerHTML = "|";
return el;
}
function createTootlip(title, action, shortcuts) {
var actionName;
var tooltip = title;
if(action) {
actionName = getBindingName(action);
if(shortcuts[actionName]) {
tooltip += " (" + fixShortcut(shortcuts[actionName]) + ")";
}
}
return tooltip;
}
/**
* 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;
} else if(data === "link") {
ret.link = true;
} else if(data === "tag") {
ret.image = true;
} else if(data.match(/^header(\-[1-6])?$/)) {
ret[data.replace("header", "heading")] = 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", editor.options.blockStyles.bold);
}
/**
* Action for toggling italic.
*/
function toggleItalic(editor) {
_toggleBlock(editor, "italic", editor.options.blockStyles.italic);
}
/**
* Action for toggling strikethrough.
*/
function toggleStrikethrough(editor) {
_toggleBlock(editor, "strikethrough", "~~");
}
/**
* Action for toggling code block.
*/
function toggleCodeBlock(editor) {
var fenceCharsToInsert = editor.options.blockStyles.code;
function fencing_line(line) {
/* return true, if this is a ``` or ~~~ line */
if(typeof line !== "object") {
throw "fencing_line() takes a 'line' object (not a line number, or line text). Got: " + typeof line + ": " + line;
}
return line.styles && line.styles[2] && line.styles[2].indexOf("formatting-code-block") !== -1;
}
function token_state(token) {
// base goes an extra level deep when mode backdrops are used, e.g. spellchecker on
return token.state.base.base || token.state.base;
}
function code_type(cm, line_num, line, firstTok, lastTok) {
/*
* Return "single", "indented", "fenced" or false
*
* cm and line_num are required. Others are optional for efficiency
* To check in the middle of a line, pass in firstTok yourself.
*/
line = line || cm.getLineHandle(line_num);
firstTok = firstTok || cm.getTokenAt({
line: line_num,
ch: 1
});
lastTok = lastTok || (!!line.text && cm.getTokenAt({
line: line_num,
ch: line.text.length - 1
}));
var types = firstTok.type ? firstTok.type.split(" ") : [];
if(lastTok && token_state(lastTok).indentedCode) {
// have to check last char, since first chars of first line aren"t marked as indented
return "indented";
} else if(types.indexOf("comment") === -1) {
// has to be after "indented" check, since first chars of first indented line aren"t marked as such
return false;
} else if(token_state(firstTok).fencedChars || token_state(lastTok).fencedChars || fencing_line(line)) {
return "fenced";
} else {
return "single";
}
}
function insertFencingAtSelection(cm, cur_start, cur_end, fenceCharsToInsert) {
var start_line_sel = cur_start.line + 1,
end_line_sel = cur_end.line + 1,
sel_multi = cur_start.line !== cur_end.line,
repl_start = fenceCharsToInsert + "\n",
repl_end = "\n" + fenceCharsToInsert;
if(sel_multi) {
end_line_sel++;
}
// handle last char including \n or not
if(sel_multi && cur_end.ch === 0) {
repl_end = fenceCharsToInsert + "\n";
end_line_sel--;
}
_replaceSelection(cm, false, [repl_start, repl_end]);
cm.setSelection({
line: start_line_sel,
ch: 0
}, {
line: end_line_sel,
ch: 0
});
}
var cm = editor.codemirror,
cur_start = cm.getCursor("start"),
cur_end = cm.getCursor("end"),
tok = cm.getTokenAt({
line: cur_start.line,
ch: cur_start.ch || 1
}), // avoid ch 0 which is a cursor pos but not token
line = cm.getLineHandle(cur_start.line),
is_code = code_type(cm, cur_start.line, line, tok);
var block_start, block_end, lineCount;
if(is_code === "single") {
// similar to some SimpleMDE _toggleBlock logic
var start = line.text.slice(0, cur_start.ch).replace("`", ""),
end = line.text.slice(cur_start.ch).replace("`", "");
cm.replaceRange(start + end, {
line: cur_start.line,
ch: 0
}, {
line: cur_start.line,
ch: 99999999999999
});
cur_start.ch--;
if(cur_start !== cur_end) {
cur_end.ch--;
}
cm.setSelection(cur_start, cur_end);
cm.focus();
} else if(is_code === "fenced") {
if(cur_start.line !== cur_end.line || cur_start.ch !== cur_end.ch) {
// use selection
// find the fenced line so we know what type it is (tilde, backticks, number of them)
for(block_start = cur_start.line; block_start >= 0; block_start--) {
line = cm.getLineHandle(block_start);
if(fencing_line(line)) {
break;
}
}
var fencedTok = cm.getTokenAt({
line: block_start,
ch: 1
});
var fence_chars = token_state(fencedTok).fencedChars;
var start_text, start_line;
var end_text, end_line;
// check for selection going up against fenced lines, in which case we don't want to add more fencing
if(fencing_line(cm.getLineHandle(cur_start.line))) {
start_text = "";
start_line = cur_start.line;
} else if(fencing_line(cm.getLineHandle(cur_start.line - 1))) {
start_text = "";
start_line = cur_start.line - 1;
} else {
start_text = fence_chars + "\n";
start_line = cur_start.line;
}
if(fencing_line(cm.getLineHandle(cur_end.line))) {
end_text = "";
end_line = cur_end.line;
if(cur_end.ch === 0) {
end_line += 1;
}
} else if(cur_end.ch !== 0 && fencing_line(cm.getLineHandle(cur_end.line + 1))) {
end_text = "";
end_line = cur_end.line + 1;
} else {
end_text = fence_chars + "\n";
end_line = cur_end.line + 1;
}
if(cur_end.ch === 0) {
// full last line selected, putting cursor at beginning of next
end_line -= 1;
}
cm.operation(function() {
// end line first, so that line numbers don't change
cm.replaceRange(end_text, {
line: end_line,
ch: 0
}, {
line: end_line + (end_text ? 0 : 1),
ch: 0
});
cm.replaceRange(start_text, {
line: start_line,
ch: 0
}, {
line: start_line + (start_text ? 0 : 1),
ch: 0
});
});
cm.setSelection({
line: start_line + (start_text ? 1 : 0),
ch: 0
}, {
line: end_line + (start_text ? 1 : -1),
ch: 0
});
cm.focus();
} else {
// no selection, search for ends of this fenced block
var search_from = cur_start.line;
if(fencing_line(cm.getLineHandle(cur_start.line))) { // gets a little tricky if cursor is right on a fenced line
if(code_type(cm, cur_start.line + 1) === "fenced") {
block_start = cur_start.line;
search_from = cur_start.line + 1; // for searching for "end"
} else {
block_end = cur_start.line;
search_from = cur_start.line - 1; // for searching for "start"
}
}
if(block_start === undefined) {
for(block_start = search_from; block_start >= 0; block_start--) {
line = cm.getLineHandle(block_start);
if(fencing_line(line)) {
break;
}
}
}
if(block_end === undefined) {
lineCount = cm.lineCount();
for(block_end = search_from; block_end < lineCount; block_end++) {
line = cm.getLineHandle(block_end);
if(fencing_line(line)) {
break;
}
}
}
cm.operation(function() {
cm.replaceRange("", {
line: block_start,
ch: 0
}, {
line: block_start + 1,
ch: 0
});
cm.replaceRange("", {
line: block_end - 1,
ch: 0
}, {
line: block_end,
ch: 0
});
});
cm.focus();
}
} else if(is_code === "indented") {
if(cur_start.line !== cur_end.line || cur_start.ch !== cur_end.ch) {
// use selection
block_start = cur_start.line;
block_end = cur_end.line;
if(cur_end.ch === 0) {
block_end--;
}
} else {
// no selection, search for ends of this indented block
for(block_start = cur_start.line; block_start >= 0; block_start--) {
line = cm.getLineHandle(block_start);
if(line.text.match(/^\s*$/)) {
// empty or all whitespace - keep going
continue;
} else {
if(code_type(cm, block_start, line) !== "indented") {
block_start += 1;
break;
}
}
}
lineCount = cm.lineCount();
for(block_end = cur_start.line; block_end < lineCount; block_end++) {
line = cm.getLineHandle(block_end);
if(line.text.match(/^\s*$/)) {
// empty or all whitespace - keep going
continue;
} else {
if(code_type(cm, block_end, line) !== "indented") {
block_end -= 1;
break;
}
}
}
}
// if we are going to un-indent based on a selected set of lines, and the next line is indented too, we need to
// insert a blank line so that the next line(s) continue to be indented code
var next_line = cm.getLineHandle(block_end + 1),
next_line_last_tok = next_line && cm.getTokenAt({
line: block_end + 1,
ch: next_line.text.length - 1
}),
next_line_indented = next_line_last_tok && token_state(next_line_last_tok).indentedCode;
if(next_line_indented) {
cm.replaceRange("\n", {
line: block_end + 1,
ch: 0
});
}
for(var i = block_start; i <= block_end; i++) {
cm.indentLine(i, "subtract"); // TODO: this doesn't get tracked in the history, so can't be undone :(
}
cm.focus();
} else {
// insert code formatting
var no_sel_and_starting_of_line = (cur_start.line === cur_end.line && cur_start.ch === cur_end.ch && cur_start.ch === 0);
var sel_multi = cur_start.line !== cur_end.line;
if(no_sel_and_starting_of_line || sel_multi) {
insertFencingAtSelection(cm, cur_start, cur_end, fenceCharsToInsert);
} else {
_replaceSelection(cm, false, ["`", "`"]);
}
}
}
/**
* 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 clean block (remove headline, list, blockquote code, markers)
*/
function cleanBlock(editor) {
var cm = editor.codemirror;
_cleanBlock(cm);
}
/**
* Action for drawing a link.
*/
function drawLink(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
var url = "http://";
if(options.promptURLs) {
url = prompt(options.promptTexts.link);
if(!url) {
return false;
}
}
_replaceSelection(cm, stat.link, options.insertTexts.link, url);
}
/**
* Action for drawing an img.
*/
function drawImage(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
var url = "http://";
if(options.promptURLs) {
url = prompt(options.promptTexts.image);
if(!url) {
return false;
}
}
_replaceSelection(cm, stat.image, options.insertTexts.image, url);
}
/**
* Action for drawing a table.
*/
function drawTable(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
_replaceSelection(cm, stat.table, options.insertTexts.table);
}
/**
* Action for drawing a horizontal rule.
*/
function drawHorizontalRule(editor) {
var cm = editor.codemirror;
var stat = getState(cm);
var options = editor.options;
_replaceSelection(cm, stat.image, options.insertTexts.horizontalRule);
}
/**
* 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"];
var useSideBySideListener = false;
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";
useSideBySideListener = true;
}
// 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, "");
}
var sideBySideRenderingFunction = function() {
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
};
if(!cm.sideBySideRenderingFunction) {
cm.sideBySideRenderingFunction = sideBySideRenderingFunction;
}
if(useSideBySideListener) {
preview.innerHTML = editor.options.previewRender(editor.value(), preview);
cm.on("update", cm.sideBySideRenderingFunction);
} else {
cm.off("update", cm.sideBySideRenderingFunction);
}
// Refresh to fix selection being off (#309)
cm.refresh();
}
/**
* Preview action.
*/
function togglePreview(editor) {
var cm = editor.codemirror;
var wrapper = cm.getWrapperElement();
var toolbar_div = wrapper.previousSibling;
var toolbar = editor.options.toolbar ? editor.toolbarElements.preview : false;
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, ""
);
if(toolbar) {
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);
if(toolbar) {
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, startEnd, url) {
if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
return;
var text;
var start = startEnd[0];
var end = startEnd[1];
var startPoint = cm.getCursor("start");
var endPoint = cm.getCursor("end");
if(url) {
end = end.replace("#url#", url);
}
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();
}
function _cleanBlock(cm) {
if(/editor-preview-active/.test(cm.getWrapperElement().lastChild.className))
return;
var startPoint = cm.getCursor("start");
var endPoint = cm.getCursor("end");
var text;
for(var line = startPoint.line; line <= endPoint.line; line++) {
text = cm.getLine(line);
text = text.replace(/^[ ]*([# ]+|\*|\-|[> ]+|[0-9]+(.|\)))[ ]*/, "");
cm.replaceRange(text, {
line: line,
ch: 0
}, {
line: line,
ch: 99999999999999
});
}
}
// Merge the properties of one object into another.
function _mergeProperties(target, source) {
for(var property in source) {
if(source.hasOwnProperty(property)) {
if(source[property] instanceof Array) {
target[property] = source[property].concat(target[property] instanceof Array ? target[property] : []);
} else if(
source[property] !== null &&
typeof source[property] === "object" &&
source[property].constructor === Object
) {
target[property] = _mergeProperties(target[property] || {}, source[property]);
} else {
target[property] = source[property];
}
}
}
return target;
}
// Merge an arbitrary number of objects into one.
function extend(target) {
for(var i = 1; i < arguments.length; i++) {
target = _mergeProperties(target, arguments[i]);
}
return target;
}
/* The right word count in respect for CJK. */
function wordCount(data) {
var pattern = /[a-zA-Z0-9_\u0392-\u03c9\u0410-\u04F9]+|[\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",
default: true
},
"italic": {
name: "italic",
action: toggleItalic,
className: "fa fa-italic",
title: "Italic",
default: true
},
"strikethrough": {
name: "strikethrough",
action: toggleStrikethrough,
className: "fa fa-strikethrough",
title: "Strikethrough"
},
"heading": {
name: "heading",
action: toggleHeadingSmaller,
className: "fa fa-header",
title: "Heading",
default: true
},
"heading-smaller": {
name: "heading-smaller",
action: toggleHeadingSmaller,
className: "fa fa-header fa-header-x fa-header-smaller",
title: "Smaller Heading"
},
"heading-bigger": {
name: "heading-bigger",
action: toggleHeadingBigger,
className: "fa fa-header fa-header-x fa-header-bigger",
title: "Bigger Heading"
},
"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"
},
"separator-1": {
name: "separator-1"
},
"code": {
name: "code",
action: toggleCodeBlock,
className: "fa fa-code",
title: "Code"
},
"quote": {
name: "quote",
action: toggleBlockquote,
className: "fa fa-quote-left",
title: "Quote",
default: true
},
"unordered-list": {
name: "unordered-list",
action: toggleUnorderedList,
className: "fa fa-list-ul",
title: "Generic List",
default: true
},
"ordered-list": {
name: "ordered-list",
action: toggleOrderedList,
className: "fa fa-list-ol",
title: "Numbered List",
default: true
},
"clean-block": {
name: "clean-block",
action: cleanBlock,
className: "fa fa-eraser fa-clean-block",
title: "Clean block"
},
"separator-2": {
name: "separator-2"
},
"link": {
name: "link",
action: drawLink,
className: "fa fa-link",
title: "Create Link",
default: true
},
"image": {
name: "image",
action: drawImage,
className: "fa fa-picture-o",
title: "Insert Image",
default: true
},
"table": {
name: "table",
action: drawTable,
className: "fa fa-table",
title: "Insert Table"
},
"horizontal-rule": {
name: "horizontal-rule",
action: drawHorizontalRule,
className: "fa fa-minus",
title: "Insert Horizontal Line"
},
"separator-3": {
name: "separator-3"
},
"preview": {
name: "preview",
action: togglePreview,
className: "fa fa-eye no-disable",
title: "Toggle Preview",
default: true
},
"side-by-side": {
name: "side-by-side",
action: toggleSideBySide,
className: "fa fa-columns no-disable no-mobile",
title: "Toggle Side by Side",
default: true
},
"fullscreen": {
name: "fullscreen",
action: toggleFullScreen,
className: "fa fa-arrows-alt no-disable no-mobile",
title: "Toggle Fullscreen",
default: true
},
"separator-4": {
name: "separator-4"
},
"guide": {
name: "guide",
action: "https://simplemde.com/markdown-guide",
className: "fa fa-question-circle",
title: "Markdown Guide",
default: true
},
"separator-5": {
name: "separator-5"
},
"undo": {
name: "undo",
action: undo,
className: "fa fa-undo no-disable",
title: "Undo"
},
"redo": {
name: "redo",
action: redo,
className: "fa fa-repeat no-disable",
title: "Redo"
}
};
var insertTexts = {
link: ["[", "](#url#)"],
image: ["![](", "#url#)"],
table: ["", "\n\n| Column 1 | Column 2 | Column 3 |\n| -------- | -------- | -------- |\n| Text | Text | Text |\n\n"],
horizontalRule: ["", "\n\n-----\n\n"]
};
var promptTexts = {
link: "URL for the link:",
image: "URL of the image:"
};
var blockStyles = {
"bold": "**",
"code": "```",
"italic": "*"
};
/**
* 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
if(options.toolbar === undefined) {
// Initialize
options.toolbar = [];
// Loop over the built in buttons, to get the preferred order
for(var key in toolbarBuiltInButtons) {
if(toolbarBuiltInButtons.hasOwnProperty(key)) {
if(key.indexOf("separator-") != -1) {
options.toolbar.push("|");
}
if(toolbarBuiltInButtons[key].default === true || (options.showIcons && options.showIcons.constructor === Array && options.showIcons.indexOf(key) != -1)) {
options.toolbar.push(key);
}
}
}
}
// Handle status bar
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 = extend({
highlightFormatting: true // needed for toggleCodeBlock to detect types of code
}, options.parsingConfig || {});
// Merging the insertTexts, with the given options
options.insertTexts = extend({}, insertTexts, options.insertTexts || {});
// Merging the promptTexts, with the given options
options.promptTexts = promptTexts;
// Merging the blockStyles, with the given options
options.blockStyles = extend({}, blockStyles, options.blockStyles || {});
// Merging the shortcuts, with the given options
options.shortcuts = extend({}, shortcuts, options.shortcuts || {});
// Change unique_id to uniqueId for backwards compatibility
if(options.autosave != undefined && options.autosave.unique_id != undefined && options.autosave.unique_id != "")
options.autosave.uniqueId = options.autosave.unique_id;
// 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.options.autosave || this.options.autosave.foundSavedValue !== true)) {
this.value(options.initialValue);
}
}
/**
* 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 = false;
} else {
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 options.shortcuts) {
// null stands for "do not bind this command"
if(options.shortcuts[key] !== null && bindings[key] !== null) {
(function(key) {
keyMaps[fixShortcut(options.shortcuts[key])] = function() {
bindings[key](self);
};
})(key);
}
}
keyMaps["Enter"] = "newlineAndIndentContinueMarkdownList";
keyMaps["Tab"] = "tabAndIndentMarkdownList";
keyMaps["Shift-Tab"] = "shiftTabAndUnindentMarkdownList";
keyMaps["Esc"] = function(cm) {
if(cm.getOption("fullScreen")) toggleFullScreen(self);
};
document.addEventListener("keydown", function(e) {
e = e || window.event;
if(e.keyCode == 27) {
if(self.codemirror.getOption("fullScreen")) toggleFullScreen(self);
}
}, false);
var mode, backdrop;
if(options.spellChecker !== false) {
mode = "spell-checker";
backdrop = options.parsingConfig;
backdrop.name = "gfm";
backdrop.gitHubSpice = false;
CodeMirrorSpellChecker({
codeMirrorInstance: CodeMirror
});
} 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"],
placeholder: options.placeholder || el.getAttribute("placeholder") || "",
styleSelectedText: (options.styleSelectedText != undefined) ? options.styleSelectedText : true
});
if(options.forceSync === true) {
var cm = this.codemirror;
cm.on("change", function() {
cm.save();
});
}
this.gui = {};
if(options.toolbar !== false) {
this.gui.toolbar = this.createToolbar();
}
if(options.status !== false) {
this.gui.statusbar = this.createStatusbar();
}
if(options.autosave != undefined && options.autosave.enabled === true) {
this.autosave();
}
this.gui.sideBySide = this.createSideBySide();
this._rendered = this.element;
// Fixes CodeMirror bug (#344)
var temp_cm = this.codemirror;
setTimeout(function() {
temp_cm.refresh();
}.bind(temp_cm), 0);
};
// Safari, in Private Browsing Mode, looks like it supports localStorage but all calls to setItem throw QuotaExceededError. We're going to detect this and set a variable accordingly.
function isLocalStorageAvailable() {
if(typeof localStorage === "object") {
try {
localStorage.setItem("smde_localStorage", 1);
localStorage.removeItem("smde_localStorage");
} catch(e) {
return false;
}
} else {
return false;
}
return true;
}
SimpleMDE.prototype.autosave = function() {
if(isLocalStorageAvailable()) {
var simplemde = this;
if(this.options.autosave.uniqueId == undefined || this.options.autosave.uniqueId == "") {
console.log("SimpleMDE: You must set a uniqueId to use the autosave feature");
return;
}
if(simplemde.element.form != null && simplemde.element.form != undefined) {
simplemde.element.form.addEventListener("submit", function() {
localStorage.removeItem("smde_" + simplemde.options.autosave.uniqueId);
});
}
if(this.options.autosave.loaded !== true) {
if(typeof localStorage.getItem("smde_" + this.options.autosave.uniqueId) == "string" && localStorage.getItem("smde_" + this.options.autosave.uniqueId) != "") {
this.codemirror.setValue(localStorage.getItem("smde_" + this.options.autosave.uniqueId));
this.options.autosave.foundSavedValue = true;
}
this.options.autosave.loaded = true;
}
localStorage.setItem("smde_" + this.options.autosave.uniqueId, simplemde.value());
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;
}
this.autosaveTimeoutId = setTimeout(function() {
simplemde.autosave();
}, this.options.autosave.delay || 10000);
} else {
console.log("SimpleMDE: localStorage not available, cannot autosave");
}
};
SimpleMDE.prototype.clearAutosavedValue = function() {
if(isLocalStorageAvailable()) {
if(this.options.autosave == undefined || this.options.autosave.uniqueId == undefined || this.options.autosave.uniqueId == "") {
console.log("SimpleMDE: You must set a uniqueId to clear the autosave value");
return;
}
localStorage.removeItem("smde_" + this.options.autosave.uniqueId);
} else {
console.log("SimpleMDE: localStorage not available, cannot autosave");
}
};
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 preview;
};
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 toolbarData = {};
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;
// Fullscreen does not work well on mobile devices (even tablets)
// In the future, hopefully this can be resolved
if((items[i].name == "fullscreen" || items[i].name == "side-by-side") && isMobile())
continue;
// Don't include trailing separators
if(items[i] === "|") {
var nonSeparatorIconsFollow = false;
for(var x = (i + 1); x < items.length; x++) {
if(items[x] !== "|" && (!self.options.hideIcons || self.options.hideIcons.indexOf(items[x].name) == -1)) {
nonSeparatorIconsFollow = true;
}
}
if(!nonSeparatorIconsFollow)
continue;
}
// Create the icon and append to the toolbar
(function(item) {
var el;
if(item === "|") {
el = createSep();
} else {
el = createIcon(item, self.options.toolbarTips, self.options.shortcuts);
}
// bind events, special for info
if(item.action) {
if(typeof item.action === "function") {
el.onclick = function(e) {
e.preventDefault();
item.action(self);
};
} else if(typeof item.action === "string") {
el.href = item.action;
el.target = "_blank";
}
}
toolbarData[item.name || item] = el;
bar.appendChild(el);
})(items[i]);
}
self.toolbarElements = toolbarData;
var cm = this.codemirror;
cm.on("cursorActivity", function() {
var stat = getState(cm);
for(var key in toolbarData) {
(function(key) {
var el = toolbarData[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) {
// Initialize
status = status || this.options.status;
var options = this.options;
var cm = this.codemirror;
// Make sure the status variable is valid
if(!status || status.length === 0)
return;
// Set up the built-in items
var items = [];
var i, onUpdate, defaultValue;
for(i = 0; i < status.length; i++) {
// Reset some values
onUpdate = undefined;
defaultValue = undefined;
// Handle if custom or not
if(typeof status[i] === "object") {
items.push({
className: status[i].className,
defaultValue: status[i].defaultValue,
onUpdate: status[i].onUpdate
});
} else {
var name = status[i];
if(name === "words") {
defaultValue = function(el) {
el.innerHTML = wordCount(cm.getValue());
};
onUpdate = function(el) {
el.innerHTML = wordCount(cm.getValue());
};
} else if(name === "lines") {
defaultValue = function(el) {
el.innerHTML = cm.lineCount();
};
onUpdate = function(el) {
el.innerHTML = cm.lineCount();
};
} else if(name === "cursor") {
defaultValue = function(el) {
el.innerHTML = "0:0";
};
onUpdate = function(el) {
var pos = cm.getCursor();
el.innerHTML = pos.line + ":" + pos.ch;
};
} else if(name === "autosave") {
defaultValue = function(el) {
if(options.autosave != undefined && options.autosave.enabled === true) {
el.setAttribute("id", "autosaved");
}
};
}
items.push({
className: name,
defaultValue: defaultValue,
onUpdate: onUpdate
});
}
}
// Create element for the status bar
var bar = document.createElement("div");
bar.className = "editor-statusbar";
// Create a new span for each item
for(i = 0; i < items.length; i++) {
// Store in temporary variable
var item = items[i];
// Create span element
var el = document.createElement("span");
el.className = item.className;
// Ensure the defaultValue is a function
if(typeof item.defaultValue === "function") {
item.defaultValue(el);
}
// Ensure the onUpdate is a function
if(typeof item.onUpdate === "function") {
// Create a closure around the span of the current action, then execute the onUpdate handler
this.codemirror.on("update", (function(el, item) {
return function() {
item.onUpdate(el);
};
}(el, item)));
}
// Append the item to the status bar
bar.appendChild(el);
}
// Insert the status bar into the DOM
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.cleanBlock = cleanBlock;
SimpleMDE.drawLink = drawLink;
SimpleMDE.drawImage = drawImage;
SimpleMDE.drawTable = drawTable;
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.cleanBlock = function() {
cleanBlock(this);
};
SimpleMDE.prototype.drawLink = function() {
drawLink(this);
};
SimpleMDE.prototype.drawImage = function() {
drawImage(this);
};
SimpleMDE.prototype.drawTable = function() {
drawTable(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);
};
SimpleMDE.prototype.isPreviewActive = function() {
var cm = this.codemirror;
var wrapper = cm.getWrapperElement();
var preview = wrapper.lastChild;
return /editor-preview-active/.test(preview.className);
};
SimpleMDE.prototype.isSideBySideActive = function() {
var cm = this.codemirror;
var wrapper = cm.getWrapperElement();
var preview = wrapper.nextSibling;
return /editor-preview-active-side/.test(preview.className);
};
SimpleMDE.prototype.isFullscreenActive = function() {
var cm = this.codemirror;
return cm.getOption("fullScreen");
};
SimpleMDE.prototype.getState = function() {
var cm = this.codemirror;
return getState(cm);
};
SimpleMDE.prototype.toTextArea = function() {
var cm = this.codemirror;
var wrapper = cm.getWrapperElement();
if(wrapper.parentNode) {
if(this.gui.toolbar) {
wrapper.parentNode.removeChild(this.gui.toolbar);
}
if(this.gui.statusbar) {
wrapper.parentNode.removeChild(this.gui.statusbar);
}
if(this.gui.sideBySide) {
wrapper.parentNode.removeChild(this.gui.sideBySide);
}
}
cm.toTextArea();
if(this.autosaveTimeoutId) {
clearTimeout(this.autosaveTimeoutId);
this.autosaveTimeoutId = undefined;
this.clearAutosavedValue();
}
};
module.exports = SimpleMDE;
},{"./codemirror/tablist":19,"codemirror":10,"codemirror-spell-checker":4,"codemirror/addon/display/fullscreen.js":5,"codemirror/addon/display/placeholder.js":6,"codemirror/addon/edit/continuelist.js":7,"codemirror/addon/mode/overlay.js":8,"codemirror/addon/selection/mark-selection.js":9,"codemirror/mode/gfm/gfm.js":11,"codemirror/mode/markdown/markdown.js":12,"codemirror/mode/xml/xml.js":14,"marked":17}]},{},[20])(20)
});
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