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/**
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* Prism: Lightweight, robust, elegant syntax highlighting
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* MIT license http://www.opensource.org/licenses/mit-license.php/
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* @author Lea Verou http://lea.verou.me
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*/
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(function(){
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// Private helper vars
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var lang = /\blang(?:uage)?-(?!\*)(\w+)\b/i;
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var _ = self.Prism = {
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util: {
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type: function (o) {
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return Object.prototype.toString.call(o).match(/\[object (\w+)\]/)[1];
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},
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// Deep clone a language definition (e.g. to extend it)
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clone: function (o) {
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var type = _.util.type(o);
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switch (type) {
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case 'Object':
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var clone = {};
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for (var key in o) {
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if (o.hasOwnProperty(key)) {
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clone[key] = _.util.clone(o[key]);
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}
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}
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return clone;
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case 'Array':
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return o.slice();
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}
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return o;
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}
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},
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languages: {
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extend: function (id, redef) {
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var lang = _.util.clone(_.languages[id]);
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for (var key in redef) {
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lang[key] = redef[key];
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}
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return lang;
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},
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// Insert a token before another token in a language literal
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insertBefore: function (inside, before, insert, root) {
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root = root || _.languages;
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var grammar = root[inside];
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var ret = {};
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for (var token in grammar) {
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if (grammar.hasOwnProperty(token)) {
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if (token == before) {
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for (var newToken in insert) {
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if (insert.hasOwnProperty(newToken)) {
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ret[newToken] = insert[newToken];
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}
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}
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}
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ret[token] = grammar[token];
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}
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}
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return root[inside] = ret;
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},
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// Traverse a language definition with Depth First Search
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DFS: function(o, callback) {
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for (var i in o) {
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callback.call(o, i, o[i]);
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if (_.util.type(o) === 'Object') {
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_.languages.DFS(o[i], callback);
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}
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}
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}
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},
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highlightAll: function(async, callback) {
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var elements = document.querySelectorAll('code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code');
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for (var i=0, element; element = elements[i++];) {
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_.highlightElement(element, async === true, callback);
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}
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},
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highlightElement: function(element, async, callback) {
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// Find language
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var language, grammar, parent = element;
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while (parent && !lang.test(parent.className)) {
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parent = parent.parentNode;
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}
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if (parent) {
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language = (parent.className.match(lang) || [,''])[1];
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grammar = _.languages[language];
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}
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if (!grammar) {
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return;
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}
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// Set language on the element, if not present
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element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
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// Set language on the parent, for styling
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parent = element.parentNode;
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if (/pre/i.test(parent.nodeName)) {
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parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
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}
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var code = element.textContent;
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if(!code) {
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return;
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}
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code = code.replace(/&/g, '&').replace(/</g, '<').replace(/\u00a0/g, ' ');
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var env = {
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element: element,
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language: language,
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grammar: grammar,
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code: code
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};
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_.hooks.run('before-highlight', env);
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// if (async && self.Worker) {
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// var worker = new Worker(_.filename);
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// worker.onmessage = function(evt) {
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// env.highlightedCode = Token.stringify(JSON.parse(evt.data), language);
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// _.hooks.run('before-insert', env);
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// env.element.innerHTML = env.highlightedCode;
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// callback && callback.call(env.element);
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// _.hooks.run('after-highlight', env);
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// };
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// worker.postMessage(JSON.stringify({
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// language: env.language,
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// code: env.code
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// }));
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// }
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// else {
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env.highlightedCode = _.highlight(env.code, env.grammar, env.language)
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_.hooks.run('before-insert', env);
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env.element.innerHTML = env.highlightedCode;
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callback && callback.call(element);
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_.hooks.run('after-highlight', env);
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// }
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},
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highlight: function (text, grammar, language) {
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return Token.stringify(_.tokenize(text, grammar), language);
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},
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tokenize: function(text, grammar, language) {
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var Token = _.Token;
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var strarr = [text];
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var rest = grammar.rest;
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if (rest) {
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for (var token in rest) {
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grammar[token] = rest[token];
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}
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delete grammar.rest;
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}
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tokenloop: for (var token in grammar) {
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if(!grammar.hasOwnProperty(token) || !grammar[token]) {
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continue;
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}
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var pattern = grammar[token],
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inside = pattern.inside,
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lookbehind = !!pattern.lookbehind,
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lookbehindLength = 0;
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pattern = pattern.pattern || pattern;
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for (var i=0; i<strarr.length; i++) { // Don’t cache length as it changes during the loop
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var str = strarr[i];
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if (strarr.length > text.length) {
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// Something went terribly wrong, ABORT, ABORT!
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break tokenloop;
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}
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if (str instanceof Token) {
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continue;
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}
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pattern.lastIndex = 0;
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var match = pattern.exec(str);
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if (match) {
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if(lookbehind) {
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lookbehindLength = match[1].length;
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}
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var from = match.index - 1 + lookbehindLength,
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match = match[0].slice(lookbehindLength),
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len = match.length,
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to = from + len,
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before = str.slice(0, from + 1),
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after = str.slice(to + 1);
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var args = [i, 1];
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if (before) {
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args.push(before);
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}
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var wrapped = new Token(token, inside? _.tokenize(match, inside) : match);
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args.push(wrapped);
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if (after) {
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args.push(after);
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}
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Array.prototype.splice.apply(strarr, args);
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}
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}
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}
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return strarr;
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},
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hooks: {
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all: {},
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add: function (name, callback) {
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var hooks = _.hooks.all;
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hooks[name] = hooks[name] || [];
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hooks[name].push(callback);
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},
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run: function (name, env) {
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var callbacks = _.hooks.all[name];
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if (!callbacks || !callbacks.length) {
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return;
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}
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for (var i=0, callback; callback = callbacks[i++];) {
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callback(env);
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}
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}
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}
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};
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var Token = _.Token = function(type, content) {
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this.type = type;
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this.content = content;
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};
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Token.stringify = function(o, language, parent) {
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if (typeof o == 'string') {
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return o;
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}
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if (Object.prototype.toString.call(o) == '[object Array]') {
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return o.map(function(element) {
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return Token.stringify(element, language, o);
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}).join('');
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}
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var env = {
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type: o.type,
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content: Token.stringify(o.content, language, parent),
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tag: 'span',
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classes: ['token', o.type],
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attributes: {},
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language: language,
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parent: parent
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};
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if (env.type == 'comment') {
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env.attributes['spellcheck'] = 'true';
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}
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_.hooks.run('wrap', env);
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var attributes = '';
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for (var name in env.attributes) {
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attributes += name + '="' + (env.attributes[name] || '') + '"';
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}
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return '<' + env.tag + ' class="' + env.classes.join(' ') + '" ' + attributes + '>' + env.content + '</' + env.tag + '>';
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};
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// if (!self.document) {
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// // In worker
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// self.addEventListener('message', function(evt) {
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// var message = JSON.parse(evt.data),
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// lang = message.language,
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// code = message.code;
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// self.postMessage(JSON.stringify(_.tokenize(code, _.languages[lang])));
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// self.close();
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// }, false);
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// return;
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// }
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// // Get current script and highlight
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// var script = document.getElementsByTagName('script');
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// script = script[script.length - 1];
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// if (script) {
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// _.filename = script.src;
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// if (document.addEventListener && !script.hasAttribute('data-manual')) {
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// document.addEventListener('DOMContentLoaded', _.highlightAll);
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// }
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// }
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})();;
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Prism.languages.markup = {
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'comment': /<!--[\w\W]*?-->/g,
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'prolog': /<\?.+?\?>/,
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'doctype': /<!DOCTYPE.+?>/,
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'cdata': /<!\[CDATA\[[\w\W]*?]]>/i,
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'tag': {
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pattern: /<\/?[\w:-]+\s*(?:\s+[\w:-]+(?:=(?:("|')(\\?[\w\W])*?\1|[^\s'">=]+))?\s*)*\/?>/gi,
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inside: {
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'tag': {
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pattern: /^<\/?[\w:-]+/i,
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inside: {
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'punctuation': /^<\/?/,
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'namespace': /^[\w-]+?:/
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}
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},
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'attr-value': {
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pattern: /=(?:('|")[\w\W]*?(\1)|[^\s>]+)/gi,
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inside: {
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'punctuation': /=|>|"/g
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}
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},
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'punctuation': /\/?>/g,
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'attr-name': {
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pattern: /[\w:-]+/g,
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inside: {
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'namespace': /^[\w-]+?:/
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}
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}
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}
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},
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'entity': /&#?[\da-z]{1,8};/gi
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};
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// Plugin to make entity title show the real entity, idea by Roman Komarov
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Prism.hooks.add('wrap', function(env) {
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if (env.type === 'entity') {
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env.attributes['title'] = env.content.replace(/&/, '&');
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}
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});
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;
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Prism.languages.css = {
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'comment': /\/\*[\w\W]*?\*\//g,
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'atrule': {
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pattern: /@[\w-]+?.*?(;|(?=\s*{))/gi,
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inside: {
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'punctuation': /[;:]/g
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}
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},
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'url': /url\((["']?).*?\1\)/gi,
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'selector': /[^\{\}\s][^\{\};]*(?=\s*\{)/g,
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'property': /(\b|\B)[\w-]+(?=\s*:)/ig,
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'string': /("|')(\\?.)*?\1/g,
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'important': /\B!important\b/gi,
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'ignore': /&(lt|gt|amp);/gi,
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'punctuation': /[\{\};:]/g
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};
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if (Prism.languages.markup) {
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Prism.languages.insertBefore('markup', 'tag', {
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'style': {
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pattern: /(<|<)style[\w\W]*?(>|>)[\w\W]*?(<|<)\/style(>|>)/ig,
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inside: {
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'tag': {
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pattern: /(<|<)style[\w\W]*?(>|>)|(<|<)\/style(>|>)/ig,
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inside: Prism.languages.markup.tag.inside
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},
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rest: Prism.languages.css
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}
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}
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});
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};
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Prism.languages.clike = {
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'comment': {
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pattern: /(^|[^\\])(\/\*[\w\W]*?\*\/|(^|[^:])\/\/.*?(\r?\n|$))/g,
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lookbehind: true
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},
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'string': /("|')(\\?.)*?\1/g,
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'class-name': {
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pattern: /((?:(?:class|interface|extends|implements|trait|instanceof|new)\s+)|(?:catch\s+\())[a-z0-9_\.\\]+/ig,
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lookbehind: true,
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inside: {
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punctuation: /(\.|\\)/
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}
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},
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'keyword': /\b(if|else|while|do|for|return|in|instanceof|function|new|try|throw|catch|finally|null|break|continue)\b/g,
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'boolean': /\b(true|false)\b/g,
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'function': {
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pattern: /[a-z0-9_]+\(/ig,
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inside: {
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punctuation: /\(/
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}
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},
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'number': /\b-?(0x[\dA-Fa-f]+|\d*\.?\d+([Ee]-?\d+)?)\b/g,
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'operator': /[-+]{1,2}|!|<=?|>=?|={1,3}|(&){1,2}|\|?\||\?|\*|\/|\~|\^|\%/g,
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'ignore': /&(lt|gt|amp);/gi,
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'punctuation': /[{}[\];(),.:]/g
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};
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;
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Prism.languages.javascript = Prism.languages.extend('clike', {
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'keyword': /\b(var|let|if|else|while|do|for|return|in|instanceof|function|new|with|typeof|try|throw|catch|finally|null|break|continue)\b/g,
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'number': /\b-?(0x[\dA-Fa-f]+|\d*\.?\d+([Ee]-?\d+)?|NaN|-?Infinity)\b/g
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});
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Prism.languages.insertBefore('javascript', 'keyword', {
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'regex': {
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pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\r\n])+\/[gim]{0,3}(?=\s*($|[\r\n,.;})]))/g,
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lookbehind: true
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}
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});
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if (Prism.languages.markup) {
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Prism.languages.insertBefore('markup', 'tag', {
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'script': {
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pattern: /(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,
|
|
|
inside: {
|
|
|
'tag': {
|
|
|
pattern: /(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,
|
|
|
inside: Prism.languages.markup.tag.inside
|
|
|
},
|
|
|
rest: Prism.languages.javascript
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
}
|
|
|
;
|
|
|
Prism.languages.coffeescript = Prism.languages.extend('javascript', {
|
|
|
'block-comment': /([#]{3}\s*\r?\n(.*\s*\r*\n*)\s*?\r?\n[#]{3})/g,
|
|
|
'comment': /(\s|^)([#]{1}[^#^\r^\n]{2,}?(\r?\n|$))/g,
|
|
|
'keyword': /\b(this|window|delete|class|extends|namespace|extend|ar|let|if|else|while|do|for|each|of|return|in|instanceof|new|with|typeof|try|catch|finally|null|undefined|break|continue)\b/g
|
|
|
});
|
|
|
|
|
|
Prism.languages.insertBefore('coffeescript', 'keyword', {
|
|
|
'function': {
|
|
|
pattern: /[a-z|A-z]+\s*[:|=]\s*(\([.|a-z\s|,|:|{|}|\"|\'|=]*\))?\s*->/gi,
|
|
|
inside: {
|
|
|
'function-name': /[_?a-z-|A-Z-]+(\s*[:|=])| @[_?$?a-z-|A-Z-]+(\s*)| /g,
|
|
|
'operator': /[-+]{1,2}|!|=?<|=?>|={1,2}|(&){1,2}|\|?\||\?|\*|\//g
|
|
|
}
|
|
|
},
|
|
|
'attr-name': /[_?a-z-|A-Z-]+(\s*:)| @[_?$?a-z-|A-Z-]+(\s*)| /g
|
|
|
});
|
|
|
;
|
|
|
Prism.languages.c = Prism.languages.extend('clike', {
|
|
|
'keyword': /\b(asm|typeof|inline|auto|break|case|char|const|continue|default|do|double|else|enum|extern|float|for|goto|if|int|long|register|return|short|signed|sizeof|static|struct|switch|typedef|union|unsigned|void|volatile|while)\b/g,
|
|
|
'operator': /[-+]{1,2}|!=?|<{1,2}=?|>{1,2}=?|\->|={1,2}|\^|~|%|(&){1,2}|\|?\||\?|\*|\//g
|
|
|
});
|
|
|
|
|
|
Prism.languages.insertBefore('c', 'keyword', {
|
|
|
//property class reused for macro statements
|
|
|
'property': {
|
|
|
pattern:/#[a-zA-Z]+\ .*/g,
|
|
|
inside: {
|
|
|
property: /<[a-zA-Z.]+>/g
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
;
|
|
|
Prism.languages.cpp = Prism.languages.extend('c', {
|
|
|
'keyword': /\b(alignas|alignof|asm|auto|bool|break|case|catch|char|char16_t|char32_t|class|compl|const|constexpr|const_cast|continue|decltype|default|delete|delete\[\]|do|double|dynamic_cast|else|enum|explicit|export|extern|float|for|friend|goto|if|inline|int|long|mutable|namespace|new|new\[\]|noexcept|nullptr|operator|private|protected|public|register|reinterpret_cast|return|short|signed|sizeof|static|static_assert|static_cast|struct|switch|template|this|thread_local|throw|try|typedef|typeid|typename|union|unsigned|using|virtual|void|volatile|wchar_t|while)\b/g,
|
|
|
'operator': /[-+]{1,2}|!=?|<{1,2}=?|>{1,2}=?|\->|:{1,2}|={1,2}|\^|~|%|(&){1,2}|\|?\||\?|\*|\/|\b(and|and_eq|bitand|bitor|not|not_eq|or|or_eq|xor|xor_eq)\b/g
|
|
|
});
|
|
|
;
|
|
|
Prism.languages.python= {
|
|
|
'comment': {
|
|
|
pattern: /(^|[^\\])#.*?(\r?\n|$)/g,
|
|
|
lookbehind: true
|
|
|
},
|
|
|
'string' : /("|')(\\?.)*?\1/g,
|
|
|
'keyword' : /\b(as|assert|break|class|continue|def|del|elif|else|except|exec|finally|for|from|global|if|import|in|is|lambda|pass|print|raise|return|try|while|with|yield)\b/g,
|
|
|
'boolean' : /\b(True|False)\b/g,
|
|
|
'number' : /\b-?(0x)?\d*\.?[\da-f]+\b/g,
|
|
|
'operator' : /[-+]{1,2}|=?<|=?>|!|={1,2}|(&){1,2}|(&){1,2}|\|?\||\?|\*|\/|~|\^|%|\b(or|and|not)\b/g,
|
|
|
'ignore' : /&(lt|gt|amp);/gi,
|
|
|
'punctuation' : /[{}[\];(),.:]/g
|
|
|
};
|
|
|
|
|
|
;
|
|
|
/**
|
|
|
* Original by Samuel Flores
|
|
|
*
|
|
|
* Adds the following new token classes:
|
|
|
* constant, builtin, variable, symbol, regex
|
|
|
*/
|
|
|
Prism.languages.ruby = Prism.languages.extend('clike', {
|
|
|
'comment': /#[^\r\n]*(\r?\n|$)/g,
|
|
|
'keyword': /\b(alias|and|BEGIN|begin|break|case|class|def|define_method|defined|do|each|else|elsif|END|end|ensure|false|for|if|in|module|new|next|nil|not|or|raise|redo|require|rescue|retry|return|self|super|then|throw|true|undef|unless|until|when|while|yield)\b/g,
|
|
|
'builtin': /\b(Array|Bignum|Binding|Class|Continuation|Dir|Exception|FalseClass|File|Stat|File|Fixnum|Fload|Hash|Integer|IO|MatchData|Method|Module|NilClass|Numeric|Object|Proc|Range|Regexp|String|Struct|TMS|Symbol|ThreadGroup|Thread|Time|TrueClass)\b/,
|
|
|
'constant': /\b[A-Z][a-zA-Z_0-9]*[?!]?\b/g
|
|
|
});
|
|
|
|
|
|
Prism.languages.insertBefore('ruby', 'keyword', {
|
|
|
'regex': {
|
|
|
pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\r\n])+\/[gim]{0,3}(?=\s*($|[\r\n,.;})]))/g,
|
|
|
lookbehind: true
|
|
|
},
|
|
|
'variable': /[@$]+\b[a-zA-Z_][a-zA-Z_0-9]*[?!]?\b/g,
|
|
|
'symbol': /:\b[a-zA-Z_][a-zA-Z_0-9]*[?!]?\b/g
|
|
|
});
|
|
|
;
|
