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92 lines
2.1 KiB
JavaScript
92 lines
2.1 KiB
JavaScript
// Initialize data globally to reduce memory consumption
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var num_loaded = 0;
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var aff_loading = false;
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var dic_loading = false;
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var aff_data = "";
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var dic_data = "";
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var typo;
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CodeMirror.defineMode("spell-checker", function(config, parserConfig) {
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// Load AFF/DIC data
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if(!aff_loading){
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aff_loading = true;
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var xhr_aff = new XMLHttpRequest();
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xhr_aff.open("GET", "https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.aff", true);
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xhr_aff.onload = function (e) {
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if (xhr_aff.readyState === 4 && xhr_aff.status === 200) {
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aff_data = xhr_aff.responseText;
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num_loaded++;
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if(num_loaded == 2){
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typo = new Typo("en_US", aff_data, dic_data, {
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platform: 'any'
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});
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}
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}
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};
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xhr_aff.send(null);
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}
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if(!dic_loading){
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dic_loading = true;
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var xhr_dic = new XMLHttpRequest();
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xhr_dic.open("GET", "https://cdn.jsdelivr.net/codemirror.spell-checker/latest/en_US.dic", true);
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xhr_dic.onload = function (e) {
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if (xhr_dic.readyState === 4 && xhr_dic.status === 200) {
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dic_data = xhr_dic.responseText;
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num_loaded++;
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if(num_loaded == 2){
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typo = new Typo("en_US", aff_data, dic_data, {
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platform: 'any'
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});
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}
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}
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};
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xhr_dic.send(null);
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}
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// Define what separates a word
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var rx_word = "!\"#$%&()*+,-./:;<=>?@[\\]^_`{|}~ ";
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// Create the overlay and such
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var overlay = {
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token: function(stream, state) {
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var ch = stream.peek();
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var word = "";
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if(rx_word.includes(ch)) {
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stream.next();
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return null;
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}
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while((ch = stream.peek()) != null && !rx_word.includes(ch)) {
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word += ch;
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stream.next();
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}
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if(typo && !typo.check(word))
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return "spell-error"; // CSS class: cm-spell-error
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return null;
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}
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};
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var mode = CodeMirror.getMode(
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config, config.backdrop || "text/plain"
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);
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return CodeMirror.overlayMode(mode, overlay, true);
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});
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// Because some browsers don't support this functionality yet
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if(!String.prototype.includes) {
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String.prototype.includes = function() {'use strict';
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return String.prototype.indexOf.apply(this, arguments) !== -1;
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};
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} |