this file is for testing syntax highlighting theme..
1/* **********************************************
2 Begin prism-core.js
3********************************************** */
4
5var _self = (typeof window !== 'undefined')
6 ? window // if in browser
7 : (
8 (typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope)
9 ? self // if in worker
10 : {} // if in node js
11 );
12
13/**
14 * Prism: Lightweight, robust, elegant syntax highlighting
15 * MIT license http://www.opensource.org/licenses/mit-license.php/
16 * @author Lea Verou http://lea.verou.me
17 */
18
19var Prism = (function(){
20
21// Private helper vars
22var lang = /\blang(?:uage)?-(\w+)\b/i;
23var uniqueId = 0;
24
25var _ = _self.Prism = {
26 manual: _self.Prism && _self.Prism.manual,
27 util: {
28 encode: function (tokens) {
29 if (tokens instanceof Token) {
30 return new Token(tokens.type, _.util.encode(tokens.content), tokens.alias);
31 } else if (_.util.type(tokens) === 'Array') {
32 return tokens.map(_.util.encode);
33 } else {
34 return tokens.replace(/&/g, '&').replace(/</g, '<').replace(/\u00a0/g, ' ');
35 }
36 },
37
38 type: function (o) {
39 return Object.prototype.toString.call(o).match(/\[object (\w+)\]/)[1];
40 },
41
42 objId: function (obj) {
43 if (!obj['__id']) {
44 Object.defineProperty(obj, '__id', { value: ++uniqueId });
45 }
46 return obj['__id'];
47 },
48
49 // Deep clone a language definition (e.g. to extend it)
50 clone: function (o) {
51 var type = _.util.type(o);
52
53 switch (type) {
54 case 'Object':
55 var clone = {};
56
57 for (var key in o) {
58 if (o.hasOwnProperty(key)) {
59 clone[key] = _.util.clone(o[key]);
60 }
61 }
62
63 return clone;
64
65 case 'Array':
66 // Check for existence for IE8
67 return o.map && o.map(function(v) { return _.util.clone(v); });
68 }
69
70 return o;
71 }
72 },
73
74 languages: {
75 extend: function (id, redef) {
76 var lang = _.util.clone(_.languages[id]);
77
78 for (var key in redef) {
79 lang[key] = redef[key];
80 }
81
82 return lang;
83 },
84
85 /**
86 * Insert a token before another token in a language literal
87 * As this needs to recreate the object (we cannot actually insert before keys in object literals),
88 * we cannot just provide an object, we need anobject and a key.
89 * @param inside The key (or language id) of the parent
90 * @param before The key to insert before. If not provided, the function appends instead.
91 * @param insert Object with the key/value pairs to insert
92 * @param root The object that contains `inside`. If equal to Prism.languages, it can be omitted.
93 */
94 insertBefore: function (inside, before, insert, root) {
95 root = root || _.languages;
96 var grammar = root[inside];
97
98 if (arguments.length == 2) {
99 insert = arguments[1];
100
101 for (var newToken in insert) {
102 if (insert.hasOwnProperty(newToken)) {
103 grammar[newToken] = insert[newToken];
104 }
105 }
106
107 return grammar;
108 }
109
110 var ret = {};
111
112 for (var token in grammar) {
113
114 if (grammar.hasOwnProperty(token)) {
115
116 if (token == before) {
117
118 for (var newToken in insert) {
119
120 if (insert.hasOwnProperty(newToken)) {
121 ret[newToken] = insert[newToken];
122 }
123 }
124 }
125
126 ret[token] = grammar[token];
127 }
128 }
129
130 // Update references in other language definitions
131 _.languages.DFS(_.languages, function(key, value) {
132 if (value === root[inside] && key != inside) {
133 this[key] = ret;
134 }
135 });
136
137 return root[inside] = ret;
138 },
139
140 // Traverse a language definition with Depth First Search
141 DFS: function(o, callback, type, visited) {
142 visited = visited || {};
143 for (var i in o) {
144 if (o.hasOwnProperty(i)) {
145 callback.call(o, i, o[i], type || i);
146
147 if (_.util.type(o[i]) === 'Object' && !visited[_.util.objId(o[i])]) {
148 visited[_.util.objId(o[i])] = true;
149 _.languages.DFS(o[i], callback, null, visited);
150 }
151 else if (_.util.type(o[i]) === 'Array' && !visited[_.util.objId(o[i])]) {
152 visited[_.util.objId(o[i])] = true;
153 _.languages.DFS(o[i], callback, i, visited);
154 }
155 }
156 }
157 }
158 },
159 plugins: {},
160
161 highlightAll: function(async, callback) {
162 var env = {
163 callback: callback,
164 selector: 'code[class*="language-"], [class*="language-"] code, code[class*="lang-"], [class*="lang-"] code'
165 };
166
167 _.hooks.run("before-highlightall", env);
168
169 var elements = env.elements || document.querySelectorAll(env.selector);
170
171 for (var i=0, element; element = elements[i++];) {
172 _.highlightElement(element, async === true, env.callback);
173 }
174 },
175
176 highlightElement: function(element, async, callback) {
177 // Find language
178 var language, grammar, parent = element;
179
180 while (parent && !lang.test(parent.className)) {
181 parent = parent.parentNode;
182 }
183
184 if (parent) {
185 language = (parent.className.match(lang) || [,''])[1].toLowerCase();
186 grammar = _.languages[language];
187 }
188
189 // Set language on the element, if not present
190 element.className = element.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
191
192 // Set language on the parent, for styling
193 parent = element.parentNode;
194
195 if (/pre/i.test(parent.nodeName)) {
196 parent.className = parent.className.replace(lang, '').replace(/\s+/g, ' ') + ' language-' + language;
197 }
198
199 var code = element.textContent;
200
201 var env = {
202 element: element,
203 language: language,
204 grammar: grammar,
205 code: code
206 };
207
208 _.hooks.run('before-sanity-check', env);
209
210 if (!env.code || !env.grammar) {
211 if (env.code) {
212 env.element.textContent = env.code;
213 }
214 _.hooks.run('complete', env);
215 return;
216 }
217
218 _.hooks.run('before-highlight', env);
219
220 if (async && _self.Worker) {
221 var worker = new Worker(_.filename);
222
223 worker.onmessage = function(evt) {
224 env.highlightedCode = evt.data;
225
226 _.hooks.run('before-insert', env);
227
228 env.element.innerHTML = env.highlightedCode;
229
230 callback && callback.call(env.element);
231 _.hooks.run('after-highlight', env);
232 _.hooks.run('complete', env);
233 };
234
235 worker.postMessage(JSON.stringify({
236 language: env.language,
237 code: env.code,
238 immediateClose: true
239 }));
240 }
241 else {
242 env.highlightedCode = _.highlight(env.code, env.grammar, env.language);
243
244 _.hooks.run('before-insert', env);
245
246 env.element.innerHTML = env.highlightedCode;
247
248 callback && callback.call(element);
249
250 _.hooks.run('after-highlight', env);
251 _.hooks.run('complete', env);
252 }
253 },
254
255 highlight: function (text, grammar, language) {
256 var tokens = _.tokenize(text, grammar);
257 return Token.stringify(_.util.encode(tokens), language);
258 },
259
260 tokenize: function(text, grammar, language) {
261 var Token = _.Token;
262
263 var strarr = [text];
264
265 var rest = grammar.rest;
266
267 if (rest) {
268 for (var token in rest) {
269 grammar[token] = rest[token];
270 }
271
272 delete grammar.rest;
273 }
274
275 tokenloop: for (var token in grammar) {
276 if(!grammar.hasOwnProperty(token) || !grammar[token]) {
277 continue;
278 }
279
280 var patterns = grammar[token];
281 patterns = (_.util.type(patterns) === "Array") ? patterns : [patterns];
282
283 for (var j = 0; j < patterns.length; ++j) {
284 var pattern = patterns[j],
285 inside = pattern.inside,
286 lookbehind = !!pattern.lookbehind,
287 greedy = !!pattern.greedy,
288 lookbehindLength = 0,
289 alias = pattern.alias;
290
291 if (greedy && !pattern.pattern.global) {
292 // Without the global flag, lastIndex won't work
293 var flags = pattern.pattern.toString().match(/[imuy]*$/)[0];
294 pattern.pattern = RegExp(pattern.pattern.source, flags + "g");
295 }
296
297 pattern = pattern.pattern || pattern;
298
299 // Don’t cache length as it changes during the loop
300 for (var i=0, pos = 0; i<strarr.length; pos += strarr[i].length, ++i) {
301
302 var str = strarr[i];
303
304 if (strarr.length > text.length) {
305 // Something went terribly wrong, ABORT, ABORT!
306 break tokenloop;
307 }
308
309 if (str instanceof Token) {
310 continue;
311 }
312
313 pattern.lastIndex = 0;
314
315 var match = pattern.exec(str),
316 delNum = 1;
317
318 // Greedy patterns can override/remove up to two previously matched tokens
319 if (!match && greedy && i != strarr.length - 1) {
320 pattern.lastIndex = pos;
321 match = pattern.exec(text);
322 if (!match) {
323 break;
324 }
325
326 var from = match.index + (lookbehind ? match[1].length : 0),
327 to = match.index + match[0].length,
328 k = i,
329 p = pos;
330
331 for (var len = strarr.length; k < len && p < to; ++k) {
332 p += strarr[k].length;
333 // Move the index i to the element in strarr that is closest to from
334 if (from >= p) {
335 ++i;
336 pos = p;
337 }
338 }
339
340 /*
341 * If strarr[i] is a Token, then the match starts inside another Token, which is invalid
342 * If strarr[k - 1] is greedy we are in conflict with another greedy pattern
343 */
344 if (strarr[i] instanceof Token || strarr[k - 1].greedy) {
345 continue;
346 }
347
348 // Number of tokens to delete and replace with the new match
349 delNum = k - i;
350 str = text.slice(pos, p);
351 match.index -= pos;
352 }
353
354 if (!match) {
355 continue;
356 }
357
358 if(lookbehind) {
359 lookbehindLength = match[1].length;
360 }
361
362 var from = match.index + lookbehindLength,
363 match = match[0].slice(lookbehindLength),
364 to = from + match.length,
365 before = str.slice(0, from),
366 after = str.slice(to);
367
368 var args = [i, delNum];
369
370 if (before) {
371 args.push(before);
372 }
373
374 var wrapped = new Token(token, inside? _.tokenize(match, inside) : match, alias, match, greedy);
375
376 args.push(wrapped);
377
378 if (after) {
379 args.push(after);
380 }
381
382 Array.prototype.splice.apply(strarr, args);
383 }
384 }
385 }
386
387 return strarr;
388 },
389
390 hooks: {
391 all: {},
392
393 add: function (name, callback) {
394 var hooks = _.hooks.all;
395
396 hooks[name] = hooks[name] || [];
397
398 hooks[name].push(callback);
399 },
400
401 run: function (name, env) {
402 var callbacks = _.hooks.all[name];
403
404 if (!callbacks || !callbacks.length) {
405 return;
406 }
407
408 for (var i=0, callback; callback = callbacks[i++];) {
409 callback(env);
410 }
411 }
412 }
413};
414
415var Token = _.Token = function(type, content, alias, matchedStr, greedy) {
416 this.type = type;
417 this.content = content;
418 this.alias = alias;
419 // Copy of the full string this token was created from
420 this.length = (matchedStr || "").length|0;
421 this.greedy = !!greedy;
422};
423
424Token.stringify = function(o, language, parent) {
425 if (typeof o == 'string') {
426 return o;
427 }
428
429 if (_.util.type(o) === 'Array') {
430 return o.map(function(element) {
431 return Token.stringify(element, language, o);
432 }).join('');
433 }
434
435 var env = {
436 type: o.type,
437 content: Token.stringify(o.content, language, parent),
438 tag: 'span',
439 classes: ['token', o.type],
440 attributes: {},
441 language: language,
442 parent: parent
443 };
444
445 if (env.type == 'comment') {
446 env.attributes['spellcheck'] = 'true';
447 }
448
449 if (o.alias) {
450 var aliases = _.util.type(o.alias) === 'Array' ? o.alias : [o.alias];
451 Array.prototype.push.apply(env.classes, aliases);
452 }
453
454 _.hooks.run('wrap', env);
455
456 var attributes = Object.keys(env.attributes).map(function(name) {
457 return name + '="' + (env.attributes[name] || '').replace(/"/g, '"') + '"';
458 }).join(' ');
459
460 return '<' + env.tag + ' class="' + env.classes.join(' ') + '"' + (attributes ? ' ' + attributes : '') + '>' + env.content + '</' + env.tag + '>';
461
462};
463
464if (!_self.document) {
465 if (!_self.addEventListener) {
466 // in Node.js
467 return _self.Prism;
468 }
469 // In worker
470 _self.addEventListener('message', function(evt) {
471 var message = JSON.parse(evt.data),
472 lang = message.language,
473 code = message.code,
474 immediateClose = message.immediateClose;
475
476 _self.postMessage(_.highlight(code, _.languages[lang], lang));
477 if (immediateClose) {
478 _self.close();
479 }
480 }, false);
481
482 return _self.Prism;
483}
484
485//Get current script and highlight
486var script = document.currentScript || [].slice.call(document.getElementsByTagName("script")).pop();
487
488if (script) {
489 _.filename = script.src;
490
491 if (document.addEventListener && !_.manual && !script.hasAttribute('data-manual')) {
492 if(document.readyState !== "loading") {
493 if (window.requestAnimationFrame) {
494 window.requestAnimationFrame(_.highlightAll);
495 } else {
496 window.setTimeout(_.highlightAll, 16);
497 }
498 }
499 else {
500 document.addEventListener('DOMContentLoaded', _.highlightAll);
501 }
502 }
503}
504
505return _self.Prism;
506
507})();
508
509if (typeof module !== 'undefined' && module.exports) {
510 module.exports = Prism;
511}
512
513// hack for components to work correctly in node.js
514if (typeof global !== 'undefined') {
515 global.Prism = Prism;
516}
517
518
519/* **********************************************
520 Begin prism-markup.js
521********************************************** */
522
523Prism.languages.markup = {
524 'comment': /<!--[\w\W]*?-->/,
525 'prolog': /<\?[\w\W]+?\?>/,
526 'doctype': /<!DOCTYPE[\w\W]+?>/i,
527 'cdata': /<!\[CDATA\[[\w\W]*?]]>/i,
528 'tag': {
529 pattern: /<\/?(?!\d)[^\s>\/=$<]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\\1|\\?(?!\1)[\w\W])*\1|[^\s'">=]+))?)*\s*\/?>/i,
530 inside: {
531 'tag': {
532 pattern: /^<\/?[^\s>\/]+/i,
533 inside: {
534 'punctuation': /^<\/?/,
535 'namespace': /^[^\s>\/:]+:/
536 }
537 },
538 'attr-value': {
539 pattern: /=(?:('|")[\w\W]*?(\1)|[^\s>]+)/i,
540 inside: {
541 'punctuation': /[=>"']/
542 }
543 },
544 'punctuation': /\/?>/,
545 'attr-name': {
546 pattern: /[^\s>\/]+/,
547 inside: {
548 'namespace': /^[^\s>\/:]+:/
549 }
550 }
551
552 }
553 },
554 'entity': /&#?[\da-z]{1,8};/i
555};
556
557// Plugin to make entity title show the real entity, idea by Roman Komarov
558Prism.hooks.add('wrap', function(env) {
559
560 if (env.type === 'entity') {
561 env.attributes['title'] = env.content.replace(/&/, '&');
562 }
563});
564
565Prism.languages.xml = Prism.languages.markup;
566Prism.languages.html = Prism.languages.markup;
567Prism.languages.mathml = Prism.languages.markup;
568Prism.languages.svg = Prism.languages.markup;
569
570
571/* **********************************************
572 Begin prism-css.js
573********************************************** */
574
575Prism.languages.css = {
576 'comment': /\/\*[\w\W]*?\*\//,
577 'atrule': {
578 pattern: /@[\w-]+?.*?(;|(?=\s*\{))/i,
579 inside: {
580 'rule': /@[\w-]+/
581 // See rest below
582 }
583 },
584 'url': /url\((?:(["'])(\\(?:\r\n|[\w\W])|(?!\1)[^\\\r\n])*\1|.*?)\)/i,
585 'selector': /[^\{\}\s][^\{\};]*?(?=\s*\{)/,
586 'string': {
587 pattern: /("|')(\\(?:\r\n|[\w\W])|(?!\1)[^\\\r\n])*\1/,
588 greedy: true
589 },
590 'property': /(\b|\B)[\w-]+(?=\s*:)/i,
591 'important': /\B!important\b/i,
592 'function': /[-a-z0-9]+(?=\()/i,
593 'punctuation': /[(){};:]/
594};
595
596Prism.languages.css['atrule'].inside.rest = Prism.util.clone(Prism.languages.css);
597
598if (Prism.languages.markup) {
599 Prism.languages.insertBefore('markup', 'tag', {
600 'style': {
601 pattern: /(<style[\w\W]*?>)[\w\W]*?(?=<\/style>)/i,
602 lookbehind: true,
603 inside: Prism.languages.css,
604 alias: 'language-css'
605 }
606 });
607
608 Prism.languages.insertBefore('inside', 'attr-value', {
609 'style-attr': {
610 pattern: /\s*style=("|').*?\1/i,
611 inside: {
612 'attr-name': {
613 pattern: /^\s*style/i,
614 inside: Prism.languages.markup.tag.inside
615 },
616 'punctuation': /^\s*=\s*['"]|['"]\s*$/,
617 'attr-value': {
618 pattern: /.+/i,
619 inside: Prism.languages.css
620 }
621 },
622 alias: 'language-css'
623 }
624 }, Prism.languages.markup.tag);
625}
626
627/* **********************************************
628 Begin prism-clike.js
629********************************************** */
630
631Prism.languages.clike = {
632 'comment': [
633 {
634 pattern: /(^|[^\\])\/\*[\w\W]*?\*\//,
635 lookbehind: true
636 },
637 {
638 pattern: /(^|[^\\:])\/\/.*/,
639 lookbehind: true
640 }
641 ],
642 'string': {
643 pattern: /(["'])(\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
644 greedy: true
645 },
646 'class-name': {
647 pattern: /((?:\b(?:class|interface|extends|implements|trait|instanceof|new)\s+)|(?:catch\s+\())[a-z0-9_\.\\]+/i,
648 lookbehind: true,
649 inside: {
650 punctuation: /(\.|\\)/
651 }
652 },
653 'keyword': /\b(if|else|while|do|for|return|in|instanceof|function|new|try|throw|catch|finally|null|break|continue)\b/,
654 'boolean': /\b(true|false)\b/,
655 'function': /[a-z0-9_]+(?=\()/i,
656 'number': /\b-?(?:0x[\da-f]+|\d*\.?\d+(?:e[+-]?\d+)?)\b/i,
657 'operator': /--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*|\/|~|\^|%/,
658 'punctuation': /[{}[\];(),.:]/
659};
660
661
662/* **********************************************
663 Begin prism-javascript.js
664********************************************** */
665
666Prism.languages.javascript = Prism.languages.extend('clike', {
667 'keyword': /\b(as|async|await|break|case|catch|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally|for|from|function|get|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|set|static|super|switch|this|throw|try|typeof|var|void|while|with|yield)\b/,
668 'number': /\b-?(0x[\dA-Fa-f]+|0b[01]+|0o[0-7]+|\d*\.?\d+([Ee][+-]?\d+)?|NaN|Infinity)\b/,
669 // Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)
670 'function': /[_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*(?=\()/i,
671 'operator': /--?|\+\+?|!=?=?|<=?|>=?|==?=?|&&?|\|\|?|\?|\*\*?|\/|~|\^|%|\.{3}/
672});
673
674Prism.languages.insertBefore('javascript', 'keyword', {
675 'regex': {
676 pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\\\r\n])+\/[gimyu]{0,5}(?=\s*($|[\r\n,.;})]))/,
677 lookbehind: true,
678 greedy: true
679 }
680});
681
682Prism.languages.insertBefore('javascript', 'string', {
683 'template-string': {
684 pattern: /`(?:\\\\|\\?[^\\])*?`/,
685 greedy: true,
686 inside: {
687 'interpolation': {
688 pattern: /\$\{[^}]+\}/,
689 inside: {
690 'interpolation-punctuation': {
691 pattern: /^\$\{|\}$/,
692 alias: 'punctuation'
693 },
694 rest: Prism.languages.javascript
695 }
696 },
697 'string': /[\s\S]+/
698 }
699 }
700});
701
702if (Prism.languages.markup) {
703 Prism.languages.insertBefore('markup', 'tag', {
704 'script': {
705 pattern: /(<script[\w\W]*?>)[\w\W]*?(?=<\/script>)/i,
706 lookbehind: true,
707 inside: Prism.languages.javascript,
708 alias: 'language-javascript'
709 }
710 });
711}
712
713Prism.languages.js = Prism.languages.javascript;
714
715/* **********************************************
716 Begin prism-file-highlight.js
717********************************************** */
718
719(function () {
720 if (typeof self === 'undefined' || !self.Prism || !self.document || !document.querySelector) {
721 return;
722 }
723
724 self.Prism.fileHighlight = function() {
725
726 var Extensions = {
727 'js': 'javascript',
728 'py': 'python',
729 'rb': 'ruby',
730 'ps1': 'powershell',
731 'psm1': 'powershell',
732 'sh': 'bash',
733 'bat': 'batch',
734 'h': 'c',
735 'tex': 'latex'
736 };
737
738 if(Array.prototype.forEach) { // Check to prevent error in IE8
739 Array.prototype.slice.call(document.querySelectorAll('pre[data-src]')).forEach(function (pre) {
740 var src = pre.getAttribute('data-src');
741
742 var language, parent = pre;
743 var lang = /\blang(?:uage)?-(?!\*)(\w+)\b/i;
744 while (parent && !lang.test(parent.className)) {
745 parent = parent.parentNode;
746 }
747
748 if (parent) {
749 language = (pre.className.match(lang) || [, ''])[1];
750 }
751
752 if (!language) {
753 var extension = (src.match(/\.(\w+)$/) || [, ''])[1];
754 language = Extensions[extension] || extension;
755 }
756
757 var code = document.createElement('code');
758 code.className = 'language-' + language;
759
760 pre.textContent = '';
761
762 code.textContent = 'Loading…';
763
764 pre.appendChild(code);
765
766 var xhr = new XMLHttpRequest();
767
768 xhr.open('GET', src, true);
769
770 xhr.onreadystatechange = function () {
771 if (xhr.readyState == 4) {
772
773 if (xhr.status < 400 && xhr.responseText) {
774 code.textContent = xhr.responseText;
775
776 Prism.highlightElement(code);
777 }
778 else if (xhr.status >= 400) {
779 code.textContent = '✖ Error ' + xhr.status + ' while fetching file: ' + xhr.statusText;
780 }
781 else {
782 code.textContent = '✖ Error: File does not exist or is empty';
783 }
784 }
785 };
786
787 xhr.send(null);
788 });
789 }
790
791 };
792
793 document.addEventListener('DOMContentLoaded', self.Prism.fileHighlight);
794
795})();