Locally add prismjs
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415
node_modules/prismjs/components/prism-markdown.js
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415
node_modules/prismjs/components/prism-markdown.js
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(function (Prism) {
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// Allow only one line break
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var inner = /(?:\\.|[^\\\n\r]|(?:\n|\r\n?)(?![\r\n]))/.source;
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/**
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* This function is intended for the creation of the bold or italic pattern.
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*
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* This also adds a lookbehind group to the given pattern to ensure that the pattern is not backslash-escaped.
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*
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* _Note:_ Keep in mind that this adds a capturing group.
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*
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* @param {string} pattern
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* @returns {RegExp}
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*/
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function createInline(pattern) {
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pattern = pattern.replace(/<inner>/g, function () { return inner; });
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return RegExp(/((?:^|[^\\])(?:\\{2})*)/.source + '(?:' + pattern + ')');
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}
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var tableCell = /(?:\\.|``(?:[^`\r\n]|`(?!`))+``|`[^`\r\n]+`|[^\\|\r\n`])+/.source;
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var tableRow = /\|?__(?:\|__)+\|?(?:(?:\n|\r\n?)|(?![\s\S]))/.source.replace(/__/g, function () { return tableCell; });
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var tableLine = /\|?[ \t]*:?-{3,}:?[ \t]*(?:\|[ \t]*:?-{3,}:?[ \t]*)+\|?(?:\n|\r\n?)/.source;
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Prism.languages.markdown = Prism.languages.extend('markup', {});
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Prism.languages.insertBefore('markdown', 'prolog', {
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'front-matter-block': {
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pattern: /(^(?:\s*[\r\n])?)---(?!.)[\s\S]*?[\r\n]---(?!.)/,
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lookbehind: true,
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greedy: true,
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inside: {
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'punctuation': /^---|---$/,
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'front-matter': {
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pattern: /\S+(?:\s+\S+)*/,
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alias: ['yaml', 'language-yaml'],
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inside: Prism.languages.yaml
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}
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}
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},
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'blockquote': {
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// > ...
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pattern: /^>(?:[\t ]*>)*/m,
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alias: 'punctuation'
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},
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'table': {
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pattern: RegExp('^' + tableRow + tableLine + '(?:' + tableRow + ')*', 'm'),
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inside: {
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'table-data-rows': {
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pattern: RegExp('^(' + tableRow + tableLine + ')(?:' + tableRow + ')*$'),
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lookbehind: true,
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inside: {
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'table-data': {
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pattern: RegExp(tableCell),
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inside: Prism.languages.markdown
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},
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'punctuation': /\|/
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}
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},
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'table-line': {
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pattern: RegExp('^(' + tableRow + ')' + tableLine + '$'),
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lookbehind: true,
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inside: {
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'punctuation': /\||:?-{3,}:?/
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}
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},
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'table-header-row': {
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pattern: RegExp('^' + tableRow + '$'),
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inside: {
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'table-header': {
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pattern: RegExp(tableCell),
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alias: 'important',
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inside: Prism.languages.markdown
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},
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'punctuation': /\|/
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}
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}
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}
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},
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'code': [
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{
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// Prefixed by 4 spaces or 1 tab and preceded by an empty line
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pattern: /((?:^|\n)[ \t]*\n|(?:^|\r\n?)[ \t]*\r\n?)(?: {4}|\t).+(?:(?:\n|\r\n?)(?: {4}|\t).+)*/,
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lookbehind: true,
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alias: 'keyword'
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},
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{
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// ```optional language
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// code block
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// ```
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pattern: /^```[\s\S]*?^```$/m,
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greedy: true,
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inside: {
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'code-block': {
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pattern: /^(```.*(?:\n|\r\n?))[\s\S]+?(?=(?:\n|\r\n?)^```$)/m,
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lookbehind: true
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},
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'code-language': {
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pattern: /^(```).+/,
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lookbehind: true
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},
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'punctuation': /```/
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}
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}
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],
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'title': [
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{
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// title 1
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// =======
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// title 2
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// -------
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pattern: /\S.*(?:\n|\r\n?)(?:==+|--+)(?=[ \t]*$)/m,
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alias: 'important',
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inside: {
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punctuation: /==+$|--+$/
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}
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},
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{
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// # title 1
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// ###### title 6
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pattern: /(^\s*)#.+/m,
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lookbehind: true,
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alias: 'important',
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inside: {
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punctuation: /^#+|#+$/
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}
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}
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],
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'hr': {
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// ***
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// ---
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// * * *
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// -----------
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pattern: /(^\s*)([*-])(?:[\t ]*\2){2,}(?=\s*$)/m,
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lookbehind: true,
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alias: 'punctuation'
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},
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'list': {
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// * item
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// + item
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// - item
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// 1. item
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pattern: /(^\s*)(?:[*+-]|\d+\.)(?=[\t ].)/m,
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lookbehind: true,
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alias: 'punctuation'
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},
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'url-reference': {
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// [id]: http://example.com "Optional title"
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// [id]: http://example.com 'Optional title'
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// [id]: http://example.com (Optional title)
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// [id]: <http://example.com> "Optional title"
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pattern: /!?\[[^\]]+\]:[\t ]+(?:\S+|<(?:\\.|[^>\\])+>)(?:[\t ]+(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*'|\((?:\\.|[^)\\])*\)))?/,
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inside: {
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'variable': {
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pattern: /^(!?\[)[^\]]+/,
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lookbehind: true
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},
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'string': /(?:"(?:\\.|[^"\\])*"|'(?:\\.|[^'\\])*'|\((?:\\.|[^)\\])*\))$/,
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'punctuation': /^[\[\]!:]|[<>]/
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},
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alias: 'url'
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},
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'bold': {
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// **strong**
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// __strong__
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// allow one nested instance of italic text using the same delimiter
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pattern: createInline(/\b__(?:(?!_)<inner>|_(?:(?!_)<inner>)+_)+__\b|\*\*(?:(?!\*)<inner>|\*(?:(?!\*)<inner>)+\*)+\*\*/.source),
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lookbehind: true,
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greedy: true,
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inside: {
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'content': {
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pattern: /(^..)[\s\S]+(?=..$)/,
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lookbehind: true,
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inside: {} // see below
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},
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'punctuation': /\*\*|__/
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}
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},
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'italic': {
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// *em*
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// _em_
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// allow one nested instance of bold text using the same delimiter
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pattern: createInline(/\b_(?:(?!_)<inner>|__(?:(?!_)<inner>)+__)+_\b|\*(?:(?!\*)<inner>|\*\*(?:(?!\*)<inner>)+\*\*)+\*/.source),
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lookbehind: true,
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greedy: true,
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inside: {
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'content': {
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pattern: /(^.)[\s\S]+(?=.$)/,
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lookbehind: true,
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inside: {} // see below
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},
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'punctuation': /[*_]/
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}
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},
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'strike': {
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// ~~strike through~~
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// ~strike~
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// eslint-disable-next-line regexp/strict
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pattern: createInline(/(~~?)(?:(?!~)<inner>)+\2/.source),
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lookbehind: true,
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greedy: true,
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inside: {
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'content': {
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pattern: /(^~~?)[\s\S]+(?=\1$)/,
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lookbehind: true,
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inside: {} // see below
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},
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'punctuation': /~~?/
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}
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},
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'code-snippet': {
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// `code`
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// ``code``
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pattern: /(^|[^\\`])(?:``[^`\r\n]+(?:`[^`\r\n]+)*``(?!`)|`[^`\r\n]+`(?!`))/,
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lookbehind: true,
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greedy: true,
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alias: ['code', 'keyword']
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},
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'url': {
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// [example](http://example.com "Optional title")
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// [example][id]
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// [example] [id]
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pattern: createInline(/!?\[(?:(?!\])<inner>)+\](?:\([^\s)]+(?:[\t ]+"(?:\\.|[^"\\])*")?\)|[ \t]?\[(?:(?!\])<inner>)+\])/.source),
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lookbehind: true,
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greedy: true,
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inside: {
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'operator': /^!/,
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'content': {
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pattern: /(^\[)[^\]]+(?=\])/,
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lookbehind: true,
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inside: {} // see below
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},
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'variable': {
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pattern: /(^\][ \t]?\[)[^\]]+(?=\]$)/,
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lookbehind: true
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},
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'url': {
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pattern: /(^\]\()[^\s)]+/,
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lookbehind: true
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},
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'string': {
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pattern: /(^[ \t]+)"(?:\\.|[^"\\])*"(?=\)$)/,
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lookbehind: true
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}
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}
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}
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});
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['url', 'bold', 'italic', 'strike'].forEach(function (token) {
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['url', 'bold', 'italic', 'strike', 'code-snippet'].forEach(function (inside) {
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if (token !== inside) {
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Prism.languages.markdown[token].inside.content.inside[inside] = Prism.languages.markdown[inside];
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}
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});
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});
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Prism.hooks.add('after-tokenize', function (env) {
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if (env.language !== 'markdown' && env.language !== 'md') {
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return;
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}
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function walkTokens(tokens) {
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if (!tokens || typeof tokens === 'string') {
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return;
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}
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for (var i = 0, l = tokens.length; i < l; i++) {
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var token = tokens[i];
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if (token.type !== 'code') {
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walkTokens(token.content);
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continue;
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}
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/*
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* Add the correct `language-xxxx` class to this code block. Keep in mind that the `code-language` token
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* is optional. But the grammar is defined so that there is only one case we have to handle:
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*
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* token.content = [
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* <span class="punctuation">```</span>,
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* <span class="code-language">xxxx</span>,
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* '\n', // exactly one new lines (\r or \n or \r\n)
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* <span class="code-block">...</span>,
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* '\n', // exactly one new lines again
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* <span class="punctuation">```</span>
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* ];
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*/
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var codeLang = token.content[1];
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var codeBlock = token.content[3];
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if (codeLang && codeBlock &&
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codeLang.type === 'code-language' && codeBlock.type === 'code-block' &&
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typeof codeLang.content === 'string') {
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// this might be a language that Prism does not support
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// do some replacements to support C++, C#, and F#
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var lang = codeLang.content.replace(/\b#/g, 'sharp').replace(/\b\+\+/g, 'pp');
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// only use the first word
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lang = (/[a-z][\w-]*/i.exec(lang) || [''])[0].toLowerCase();
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var alias = 'language-' + lang;
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// add alias
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if (!codeBlock.alias) {
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codeBlock.alias = [alias];
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} else if (typeof codeBlock.alias === 'string') {
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codeBlock.alias = [codeBlock.alias, alias];
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} else {
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codeBlock.alias.push(alias);
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}
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}
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}
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}
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walkTokens(env.tokens);
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});
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Prism.hooks.add('wrap', function (env) {
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if (env.type !== 'code-block') {
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return;
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}
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var codeLang = '';
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for (var i = 0, l = env.classes.length; i < l; i++) {
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var cls = env.classes[i];
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var match = /language-(.+)/.exec(cls);
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if (match) {
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codeLang = match[1];
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break;
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}
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}
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var grammar = Prism.languages[codeLang];
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if (!grammar) {
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if (codeLang && codeLang !== 'none' && Prism.plugins.autoloader) {
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var id = 'md-' + new Date().valueOf() + '-' + Math.floor(Math.random() * 1e16);
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env.attributes['id'] = id;
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Prism.plugins.autoloader.loadLanguages(codeLang, function () {
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var ele = document.getElementById(id);
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if (ele) {
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ele.innerHTML = Prism.highlight(ele.textContent, Prism.languages[codeLang], codeLang);
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}
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});
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}
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} else {
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env.content = Prism.highlight(textContent(env.content), grammar, codeLang);
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}
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});
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var tagPattern = RegExp(Prism.languages.markup.tag.pattern.source, 'gi');
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/**
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* A list of known entity names.
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*
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* This will always be incomplete to save space. The current list is the one used by lowdash's unescape function.
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*
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* @see {@link https://github.com/lodash/lodash/blob/2da024c3b4f9947a48517639de7560457cd4ec6c/unescape.js#L2}
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*/
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var KNOWN_ENTITY_NAMES = {
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'amp': '&',
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'lt': '<',
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'gt': '>',
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'quot': '"',
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};
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// IE 11 doesn't support `String.fromCodePoint`
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var fromCodePoint = String.fromCodePoint || String.fromCharCode;
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/**
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* Returns the text content of a given HTML source code string.
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*
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* @param {string} html
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* @returns {string}
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*/
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function textContent(html) {
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// remove all tags
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var text = html.replace(tagPattern, '');
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// decode known entities
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text = text.replace(/&(\w{1,8}|#x?[\da-f]{1,8});/gi, function (m, code) {
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code = code.toLowerCase();
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if (code[0] === '#') {
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var value;
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if (code[1] === 'x') {
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value = parseInt(code.slice(2), 16);
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} else {
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value = Number(code.slice(1));
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}
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return fromCodePoint(value);
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} else {
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var known = KNOWN_ENTITY_NAMES[code];
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if (known) {
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return known;
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}
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// unable to decode
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return m;
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}
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});
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return text;
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}
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Prism.languages.md = Prism.languages.markdown;
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}(Prism));
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