287 lines
7.9 KiB
JavaScript
287 lines
7.9 KiB
JavaScript
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(function (Prism) {
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// We don't allow for pipes inside parentheses
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// to not break table pattern |(. foo |). bar |
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var modifierRegex = /\([^|()\n]+\)|\[[^\]\n]+\]|\{[^}\n]+\}/.source;
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// Opening and closing parentheses which are not a modifier
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// This pattern is necessary to prevent exponential backtracking
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var parenthesesRegex = /\)|\((?![^|()\n]+\))/.source;
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/**
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* @param {string} source
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* @param {string} [flags]
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*/
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function withModifier(source, flags) {
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return RegExp(
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source
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.replace(/<MOD>/g, function () { return '(?:' + modifierRegex + ')'; })
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.replace(/<PAR>/g, function () { return '(?:' + parenthesesRegex + ')'; }),
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flags || '');
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}
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var modifierTokens = {
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'css': {
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pattern: /\{[^{}]+\}/,
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inside: {
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rest: Prism.languages.css
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}
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},
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'class-id': {
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pattern: /(\()[^()]+(?=\))/,
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lookbehind: true,
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alias: 'attr-value'
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},
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'lang': {
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pattern: /(\[)[^\[\]]+(?=\])/,
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lookbehind: true,
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alias: 'attr-value'
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},
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// Anything else is punctuation (the first pattern is for row/col spans inside tables)
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'punctuation': /[\\\/]\d+|\S/
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};
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var textile = Prism.languages.textile = Prism.languages.extend('markup', {
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'phrase': {
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pattern: /(^|\r|\n)\S[\s\S]*?(?=$|\r?\n\r?\n|\r\r)/,
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lookbehind: true,
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inside: {
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// h1. Header 1
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'block-tag': {
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pattern: withModifier(/^[a-z]\w*(?:<MOD>|<PAR>|[<>=])*\./.source),
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inside: {
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'modifier': {
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pattern: withModifier(/(^[a-z]\w*)(?:<MOD>|<PAR>|[<>=])+(?=\.)/.source),
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lookbehind: true,
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inside: modifierTokens
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},
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'tag': /^[a-z]\w*/,
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'punctuation': /\.$/
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}
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},
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// # List item
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// * List item
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'list': {
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pattern: withModifier(/^[*#]+<MOD>*\s+\S.*/.source, 'm'),
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inside: {
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'modifier': {
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pattern: withModifier(/(^[*#]+)<MOD>+/.source),
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lookbehind: true,
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inside: modifierTokens
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},
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'punctuation': /^[*#]+/
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}
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},
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// | cell | cell | cell |
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'table': {
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// Modifiers can be applied to the row: {color:red}.|1|2|3|
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// or the cell: |{color:red}.1|2|3|
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pattern: withModifier(/^(?:(?:<MOD>|<PAR>|[<>=^~])+\.\s*)?(?:\|(?:(?:<MOD>|<PAR>|[<>=^~_]|[\\/]\d+)+\.|(?!(?:<MOD>|<PAR>|[<>=^~_]|[\\/]\d+)+\.))[^|]*)+\|/.source, 'm'),
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inside: {
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'modifier': {
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// Modifiers for rows after the first one are
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// preceded by a pipe and a line feed
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pattern: withModifier(/(^|\|(?:\r?\n|\r)?)(?:<MOD>|<PAR>|[<>=^~_]|[\\/]\d+)+(?=\.)/.source),
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lookbehind: true,
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inside: modifierTokens
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},
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'punctuation': /\||^\./
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}
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},
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'inline': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^|[^a-zA-Z\d])(\*\*|__|\?\?|[*_%@+\-^~])<MOD>*.+?\2(?![a-zA-Z\d])/.source),
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lookbehind: true,
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inside: {
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// Note: superscripts and subscripts are not handled specifically
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// *bold*, **bold**
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'bold': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^(\*\*?)<MOD>*).+?(?=\2)/.source),
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lookbehind: true
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},
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// _italic_, __italic__
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'italic': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^(__?)<MOD>*).+?(?=\2)/.source),
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lookbehind: true
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},
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// ??cite??
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'cite': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^\?\?<MOD>*).+?(?=\?\?)/.source),
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lookbehind: true,
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alias: 'string'
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},
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// @code@
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'code': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^@<MOD>*).+?(?=@)/.source),
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lookbehind: true,
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alias: 'keyword'
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},
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// +inserted+
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'inserted': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^\+<MOD>*).+?(?=\+)/.source),
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lookbehind: true
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},
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// -deleted-
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'deleted': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^-<MOD>*).+?(?=-)/.source),
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lookbehind: true
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},
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// %span%
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'span': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^%<MOD>*).+?(?=%)/.source),
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lookbehind: true
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},
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'modifier': {
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pattern: withModifier(/(^\*\*|__|\?\?|[*_%@+\-^~])<MOD>+/.source),
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lookbehind: true,
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inside: modifierTokens
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},
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'punctuation': /[*_%?@+\-^~]+/
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}
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},
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// [alias]http://example.com
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'link-ref': {
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pattern: /^\[[^\]]+\]\S+$/m,
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inside: {
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'string': {
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pattern: /(^\[)[^\]]+(?=\])/,
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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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'punctuation': /[\[\]]/
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}
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},
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// "text":http://example.com
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// "text":link-ref
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'link': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/"<MOD>*[^"]+":.+?(?=[^\w/]?(?:\s|$))/.source),
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inside: {
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'text': {
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// eslint-disable-next-line regexp/no-super-linear-backtracking
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pattern: withModifier(/(^"<MOD>*)[^"]+(?=")/.source),
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lookbehind: true
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},
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'modifier': {
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pattern: withModifier(/(^")<MOD>+/.source),
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lookbehind: true,
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inside: modifierTokens
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},
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'url': {
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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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// !image.jpg!
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// !image.jpg(Title)!:http://example.com
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'image': {
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pattern: withModifier(/!(?:<MOD>|<PAR>|[<>=])*(?![<>=])[^!\s()]+(?:\([^)]+\))?!(?::.+?(?=[^\w/]?(?:\s|$)))?/.source),
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inside: {
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'source': {
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pattern: withModifier(/(^!(?:<MOD>|<PAR>|[<>=])*)(?![<>=])[^!\s()]+(?:\([^)]+\))?(?=!)/.source),
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lookbehind: true,
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alias: 'url'
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},
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'modifier': {
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pattern: withModifier(/(^!)(?:<MOD>|<PAR>|[<>=])+/.source),
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lookbehind: true,
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inside: modifierTokens
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},
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'url': {
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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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// Footnote[1]
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'footnote': {
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pattern: /\b\[\d+\]/,
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alias: 'comment',
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inside: {
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'punctuation': /\[|\]/
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}
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},
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// CSS(Cascading Style Sheet)
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'acronym': {
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pattern: /\b[A-Z\d]+\([^)]+\)/,
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inside: {
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'comment': {
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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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// Prism(C)
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'mark': {
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pattern: /\b\((?:C|R|TM)\)/,
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alias: 'comment',
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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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}
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});
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var phraseInside = textile['phrase'].inside;
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var nestedPatterns = {
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'inline': phraseInside['inline'],
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'link': phraseInside['link'],
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'image': phraseInside['image'],
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'footnote': phraseInside['footnote'],
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'acronym': phraseInside['acronym'],
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'mark': phraseInside['mark']
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};
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// Only allow alpha-numeric HTML tags, not XML tags
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textile.tag.pattern = /<\/?(?!\d)[a-z0-9]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+))?)*\s*\/?>/i;
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// Allow some nesting
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var phraseInlineInside = phraseInside['inline'].inside;
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phraseInlineInside['bold'].inside = nestedPatterns;
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phraseInlineInside['italic'].inside = nestedPatterns;
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phraseInlineInside['inserted'].inside = nestedPatterns;
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phraseInlineInside['deleted'].inside = nestedPatterns;
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phraseInlineInside['span'].inside = nestedPatterns;
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// Allow some styles inside table cells
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var phraseTableInside = phraseInside['table'].inside;
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phraseTableInside['inline'] = nestedPatterns['inline'];
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phraseTableInside['link'] = nestedPatterns['link'];
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phraseTableInside['image'] = nestedPatterns['image'];
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phraseTableInside['footnote'] = nestedPatterns['footnote'];
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phraseTableInside['acronym'] = nestedPatterns['acronym'];
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phraseTableInside['mark'] = nestedPatterns['mark'];
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}(Prism));
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