| 1 | 'use strict'
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| 2 |
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| 3 | module.exports = javascript
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| 4 | javascript.displayName = 'javascript'
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| 5 | javascript.aliases = ['js']
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| 6 | function javascript(Prism) {
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| 7 | Prism.languages.javascript = Prism.languages.extend('clike', {
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| 8 | 'class-name': [
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| 9 | Prism.languages.clike['class-name'],
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| 10 | {
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| 11 | pattern:
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| 12 | /(^|[^$\w\xA0-\uFFFF])(?!\s)[_$A-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\.(?:constructor|prototype))/,
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| 13 | lookbehind: true
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| 14 | }
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| 15 | ],
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| 16 | keyword: [
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| 17 | {
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| 18 | pattern: /((?:^|\})\s*)catch\b/,
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| 19 | lookbehind: true
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| 20 | },
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| 21 | {
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| 22 | pattern:
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| 23 | /(^|[^.]|\.\.\.\s*)\b(?:as|assert(?=\s*\{)|async(?=\s*(?:function\b|\(|[$\w\xA0-\uFFFF]|$))|await|break|case|class|const|continue|debugger|default|delete|do|else|enum|export|extends|finally(?=\s*(?:\{|$))|for|from(?=\s*(?:['"]|$))|function|(?:get|set)(?=\s*(?:[#\[$\w\xA0-\uFFFF]|$))|if|implements|import|in|instanceof|interface|let|new|null|of|package|private|protected|public|return|static|super|switch|this|throw|try|typeof|undefined|var|void|while|with|yield)\b/,
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| 24 | lookbehind: true
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| 25 | }
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| 26 | ],
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| 27 | // Allow for all non-ASCII characters (See http://stackoverflow.com/a/2008444)
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| 28 | function:
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| 29 | /#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*(?:\.\s*(?:apply|bind|call)\s*)?\()/,
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| 30 | number: {
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| 31 | pattern: RegExp(
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| 32 | /(^|[^\w$])/.source +
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| 33 | '(?:' + // constant
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| 34 | (/NaN|Infinity/.source +
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| 35 | '|' + // binary integer
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| 36 | /0[bB][01]+(?:_[01]+)*n?/.source +
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| 37 | '|' + // octal integer
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| 38 | /0[oO][0-7]+(?:_[0-7]+)*n?/.source +
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| 39 | '|' + // hexadecimal integer
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| 40 | /0[xX][\dA-Fa-f]+(?:_[\dA-Fa-f]+)*n?/.source +
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| 41 | '|' + // decimal bigint
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| 42 | /\d+(?:_\d+)*n/.source +
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| 43 | '|' + // decimal number (integer or float) but no bigint
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| 44 | /(?:\d+(?:_\d+)*(?:\.(?:\d+(?:_\d+)*)?)?|\.\d+(?:_\d+)*)(?:[Ee][+-]?\d+(?:_\d+)*)?/
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| 45 | .source) +
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| 46 | ')' +
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| 47 | /(?![\w$])/.source
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| 48 | ),
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| 49 | lookbehind: true
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| 50 | },
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| 51 | operator:
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| 52 | /--|\+\+|\*\*=?|=>|&&=?|\|\|=?|[!=]==|<<=?|>>>?=?|[-+*/%&|^!=<>]=?|\.{3}|\?\?=?|\?\.?|[~:]/
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| 53 | })
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| 54 | Prism.languages.javascript['class-name'][0].pattern =
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| 55 | /(\b(?:class|extends|implements|instanceof|interface|new)\s+)[\w.\\]+/
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| 56 | Prism.languages.insertBefore('javascript', 'keyword', {
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| 57 | regex: {
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| 58 | // eslint-disable-next-line regexp/no-dupe-characters-character-class
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| 59 | pattern:
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| 60 | /((?:^|[^$\w\xA0-\uFFFF."'\])\s]|\b(?:return|yield))\s*)\/(?:\[(?:[^\]\\\r\n]|\\.)*\]|\\.|[^/\\\[\r\n])+\/[dgimyus]{0,7}(?=(?:\s|\/\*(?:[^*]|\*(?!\/))*\*\/)*(?:$|[\r\n,.;:})\]]|\/\/))/,
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| 61 | lookbehind: true,
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| 62 | greedy: true,
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| 63 | inside: {
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| 64 | 'regex-source': {
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| 65 | pattern: /^(\/)[\s\S]+(?=\/[a-z]*$)/,
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| 66 | lookbehind: true,
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| 67 | alias: 'language-regex',
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| 68 | inside: Prism.languages.regex
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| 69 | },
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| 70 | 'regex-delimiter': /^\/|\/$/,
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| 71 | 'regex-flags': /^[a-z]+$/
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| 72 | }
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| 73 | },
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| 74 | // This must be declared before keyword because we use "function" inside the look-forward
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| 75 | 'function-variable': {
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| 76 | pattern:
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| 77 | /#?(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*[=:]\s*(?:async\s*)?(?:\bfunction\b|(?:\((?:[^()]|\([^()]*\))*\)|(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)\s*=>))/,
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| 78 | alias: 'function'
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| 79 | },
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| 80 | parameter: [
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| 81 | {
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| 82 | pattern:
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| 83 | /(function(?:\s+(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*)?\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\))/,
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| 84 | lookbehind: true,
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| 85 | inside: Prism.languages.javascript
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| 86 | },
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| 87 | {
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| 88 | pattern:
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| 89 | /(^|[^$\w\xA0-\uFFFF])(?!\s)[_$a-z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*=>)/i,
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| 90 | lookbehind: true,
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| 91 | inside: Prism.languages.javascript
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| 92 | },
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| 93 | {
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| 94 | pattern:
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| 95 | /(\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*=>)/,
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| 96 | lookbehind: true,
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| 97 | inside: Prism.languages.javascript
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| 98 | },
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| 99 | {
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| 100 | pattern:
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| 101 | /((?:\b|\s|^)(?!(?: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|undefined|var|void|while|with|yield)(?![$\w\xA0-\uFFFF]))(?:(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*\s*)\(\s*|\]\s*\(\s*)(?!\s)(?:[^()\s]|\s+(?![\s)])|\([^()]*\))+(?=\s*\)\s*\{)/,
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| 102 | lookbehind: true,
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| 103 | inside: Prism.languages.javascript
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| 104 | }
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| 105 | ],
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| 106 | constant: /\b[A-Z](?:[A-Z_]|\dx?)*\b/
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| 107 | })
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| 108 | Prism.languages.insertBefore('javascript', 'string', {
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| 109 | hashbang: {
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| 110 | pattern: /^#!.*/,
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| 111 | greedy: true,
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| 112 | alias: 'comment'
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| 113 | },
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| 114 | 'template-string': {
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| 115 | pattern:
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| 116 | /`(?:\\[\s\S]|\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}|(?!\$\{)[^\\`])*`/,
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| 117 | greedy: true,
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| 118 | inside: {
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| 119 | 'template-punctuation': {
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| 120 | pattern: /^`|`$/,
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| 121 | alias: 'string'
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| 122 | },
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| 123 | interpolation: {
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| 124 | pattern:
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| 125 | /((?:^|[^\\])(?:\\{2})*)\$\{(?:[^{}]|\{(?:[^{}]|\{[^}]*\})*\})+\}/,
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| 126 | lookbehind: true,
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| 127 | inside: {
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| 128 | 'interpolation-punctuation': {
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| 129 | pattern: /^\$\{|\}$/,
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| 130 | alias: 'punctuation'
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| 131 | },
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| 132 | rest: Prism.languages.javascript
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| 133 | }
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| 134 | },
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| 135 | string: /[\s\S]+/
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| 136 | }
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| 137 | },
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| 138 | 'string-property': {
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| 139 | pattern:
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| 140 | /((?:^|[,{])[ \t]*)(["'])(?:\\(?:\r\n|[\s\S])|(?!\2)[^\\\r\n])*\2(?=\s*:)/m,
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| 141 | lookbehind: true,
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| 142 | greedy: true,
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| 143 | alias: 'property'
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| 144 | }
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| 145 | })
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| 146 | Prism.languages.insertBefore('javascript', 'operator', {
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| 147 | 'literal-property': {
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| 148 | pattern:
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| 149 | /((?:^|[,{])[ \t]*)(?!\s)[_$a-zA-Z\xA0-\uFFFF](?:(?!\s)[$\w\xA0-\uFFFF])*(?=\s*:)/m,
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| 150 | lookbehind: true,
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| 151 | alias: 'property'
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| 152 | }
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| 153 | })
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| 154 | if (Prism.languages.markup) {
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| 155 | Prism.languages.markup.tag.addInlined('script', 'javascript') // add attribute support for all DOM events.
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| 156 | // https://developer.mozilla.org/en-US/docs/Web/Events#Standard_events
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| 157 | Prism.languages.markup.tag.addAttribute(
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| 158 | /on(?:abort|blur|change|click|composition(?:end|start|update)|dblclick|error|focus(?:in|out)?|key(?:down|up)|load|mouse(?:down|enter|leave|move|out|over|up)|reset|resize|scroll|select|slotchange|submit|unload|wheel)/
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| 159 | .source,
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| 160 | 'javascript'
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| 161 | )
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| 162 | }
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| 163 | Prism.languages.js = Prism.languages.javascript
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| 164 | }
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