2012-07-11 03:48:14 +08:00
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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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var _ = self.Prism = {
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languages: {},
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highlightAll: function(useWorkers, callback) {
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var elements = document.querySelectorAll('pre.prism, pre.prism > code, code.prism');
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for (var i=0, element; element = elements[i++];) {
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if(/pre/i.test(element.nodeName) && element.children.length > 0) {
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continue;
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}
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2012-07-12 03:01:44 +08:00
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_.highlight(element, useWorkers === true, callback);
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2012-07-11 03:48:14 +08:00
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}
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},
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highlight: function(code, useWorkers, callback) {
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if(!code) {
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return;
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}
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var language = (code.className.match(/language-(\w+)/i) || [])[1],
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tokens = _.languages[language];
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if (!tokens) {
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return;
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}
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2012-07-12 03:01:44 +08:00
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var text = (code.textContent || code.innerText)
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2012-07-11 03:48:14 +08:00
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.replace(/&/g, '&')
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.replace(/</g, '<')
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.replace(/>/g, '>')
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.replace(/\u00a0/g, ' ');
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if (useWorkers && self.Worker) {
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if(self.worker) {
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self.worker.terminate();
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}
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var worker = new Worker(_.filename);
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worker.onmessage = function(evt) {
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code.innerHTML = evt.data;
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callback && callback.call(code);
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};
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worker.postMessage(language + '|' + text);
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}
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else {
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code.innerHTML = _.tokenize(text, tokens);
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callback && callback.call(code);
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}
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},
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tokenize: function(text, tokens) {
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var strarr = [text];
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var rest = tokens.rest;
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if (rest) {
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for (var token in rest) {
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tokens[token] = rest[token];
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}
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delete tokens.rest;
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}
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for (var token in tokens) {
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2012-07-11 08:14:55 +08:00
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if(!tokens.hasOwnProperty(token)) {
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continue;
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}
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2012-07-11 03:48:14 +08:00
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var pattern = tokens[token],
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inside = pattern.inside;
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pattern = pattern.pattern || pattern;
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for (var i=0; i<strarr.length; i++) {
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var str = strarr[i];
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if (str.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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var to = pattern.lastIndex,
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match = match[0],
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len = match.length,
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from = to - len,
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before = str.slice(0, from),
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after = str.slice(to);
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strarr.splice(i, 1);
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if(before) {
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strarr.splice(i++, 0, before);
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}
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var wrapped = new String(
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_.wrap(
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token,
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inside? _.tokenize(match, inside) : match
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)
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);
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wrapped.token = true;
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strarr.splice(i, 0, wrapped);
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if(after) {
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strarr.splice(i+1, 0, after);
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}
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}
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}
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}
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return strarr.join('');
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},
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wrap: function(token, content) {
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return '<span class="token ' + token + (token === 'comment'? '" spellcheck="true' : '') + '">' + content + '</span>'
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}
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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 = evt.data,
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i = message.indexOf('|'),
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lang = message.slice(0,i),
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code = message.slice(i+1);
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self.postMessage(_.tokenize(code, _.languages[lang]));
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self.close();
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}, false);
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2012-07-11 19:22:23 +08:00
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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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2012-07-11 03:48:14 +08:00
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2012-07-12 03:01:44 +08:00
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if(document.addEventListener) {
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document.addEventListener('DOMContentLoaded', _.highlightAll);
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}
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else if (window.attachEvent) {
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attachEvent('onload', _.highlightAll);
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}
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2012-07-11 03:48:14 +08:00
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}
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})();
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/***********************************************
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Begin prism-css.js
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***********************************************/
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Prism.languages.css = {
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'comment': /\/\*[\w\W]*?\*\//g,
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'atrule': /@[\w-]+?(\s+.+)?(?=\s*{|\s*;)/gi,
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2012-07-11 19:22:23 +08:00
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'selector': /[^\{\}\s][^\{\}]*(?=\s*\{)/g,
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2012-07-11 03:48:14 +08:00
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'property': /(\b|\B)[a-z-]+(?=\s*:)/ig,
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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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/***********************************************
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Begin prism-javascript.js
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***********************************************/
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Prism.languages.javascript = {
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'comment': /\/\*[\w\W]*?\*\//g,
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'regex': /\/(\\?.)+?\/[gim]{0,3}/g,
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'line-comment': /\/\/.*?(\r?\n|$)/g,
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'string': /("|')(\\?.)*?\1/g,
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'keyword': /\b(var|let|if|else|while|do|for|return|in|instanceof|function|new|with|typeof|try|catch|finally|null|break|continue)\b/g,
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'boolean': /\b(true|false)\b/g,
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'number': /\b-?(0x)?\d*\.?\d+\b/g,
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2012-07-11 19:22:23 +08:00
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'operator': /[-+]{1,2}|!|=?<|=?>|={1,2}|(&){1,2}|\|?\||\?|:|\*|\//g,
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2012-07-11 03:48:14 +08:00
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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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Begin prism-html.js
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***********************************************/
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Prism.languages.html = {
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'comment': /<!--[\w\W]*?--(>|>)/g,
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'script': null,
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'style': null,
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'tag': {
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pattern: /(<|<)\/?[\w\W]+?(>|>)/gi,
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inside: {
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'attr-value': {
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pattern: /[\w:-]+=(('|").*?(\2)|[^\s>]+(?=\/?>|\/?>|\s))/gi,
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inside: {
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'attr-name': /^[\w:-]+(?==)/gi,
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'punctuation': /=/g
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}
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},
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'attr-name': /\s[\w:-]+(?=\s|>|>)/gi,
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'punctuation': /<\/?|\/?>|<\/?|\/?>/g
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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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if (Prism.languages.javascript) {
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Prism.languages.html.script = {
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pattern: /(<|<)script[\w\W]*?(>|>)[\w\W]*?(<|<)\/script(>|>)/ig,
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inside: {
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'tag': {
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pattern: /(<|<)script[\w\W]*?(>|>)|(<|<)\/script(>|>)/ig,
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inside: Prism.languages.html.tag.inside
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},
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rest: Prism.languages.javascript
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}
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};
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}
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else {
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delete Prism.languages.html.script;
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}
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if (Prism.languages.css) {
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Prism.languages.html.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.html.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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else {
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delete Prism.languages.html.style;
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}
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