| [d24f17c] | 1 | 'use strict'
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| 2 |
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| 3 | module.exports = regex
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| 4 | regex.displayName = 'regex'
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| 5 | regex.aliases = []
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| 6 | function regex(Prism) {
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| 7 | ;(function (Prism) {
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| 8 | var specialEscape = {
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| 9 | pattern: /\\[\\(){}[\]^$+*?|.]/,
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| 10 | alias: 'escape'
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| 11 | }
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| 12 | var escape =
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| 13 | /\\(?:x[\da-fA-F]{2}|u[\da-fA-F]{4}|u\{[\da-fA-F]+\}|0[0-7]{0,2}|[123][0-7]{2}|c[a-zA-Z]|.)/
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| 14 | var charSet = {
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| 15 | pattern: /\.|\\[wsd]|\\p\{[^{}]+\}/i,
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| 16 | alias: 'class-name'
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| 17 | }
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| 18 | var charSetWithoutDot = {
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| 19 | pattern: /\\[wsd]|\\p\{[^{}]+\}/i,
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| 20 | alias: 'class-name'
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| 21 | }
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| 22 | var rangeChar = '(?:[^\\\\-]|' + escape.source + ')'
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| 23 | var range = RegExp(rangeChar + '-' + rangeChar) // the name of a capturing group
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| 24 | var groupName = {
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| 25 | pattern: /(<|')[^<>']+(?=[>']$)/,
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| 26 | lookbehind: true,
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| 27 | alias: 'variable'
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| 28 | }
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| 29 | Prism.languages.regex = {
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| 30 | 'char-class': {
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| 31 | pattern: /((?:^|[^\\])(?:\\\\)*)\[(?:[^\\\]]|\\[\s\S])*\]/,
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| 32 | lookbehind: true,
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| 33 | inside: {
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| 34 | 'char-class-negation': {
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| 35 | pattern: /(^\[)\^/,
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| 36 | lookbehind: true,
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| 37 | alias: 'operator'
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| 38 | },
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| 39 | 'char-class-punctuation': {
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| 40 | pattern: /^\[|\]$/,
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| 41 | alias: 'punctuation'
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| 42 | },
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| 43 | range: {
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| 44 | pattern: range,
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| 45 | inside: {
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| 46 | escape: escape,
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| 47 | 'range-punctuation': {
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| 48 | pattern: /-/,
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| 49 | alias: 'operator'
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| 50 | }
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| 51 | }
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| 52 | },
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| 53 | 'special-escape': specialEscape,
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| 54 | 'char-set': charSetWithoutDot,
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| 55 | escape: escape
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| 56 | }
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| 57 | },
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| 58 | 'special-escape': specialEscape,
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| 59 | 'char-set': charSet,
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| 60 | backreference: [
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| 61 | {
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| 62 | // a backreference which is not an octal escape
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| 63 | pattern: /\\(?![123][0-7]{2})[1-9]/,
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| 64 | alias: 'keyword'
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| 65 | },
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| 66 | {
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| 67 | pattern: /\\k<[^<>']+>/,
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| 68 | alias: 'keyword',
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| 69 | inside: {
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| 70 | 'group-name': groupName
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| 71 | }
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| 72 | }
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| 73 | ],
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| 74 | anchor: {
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| 75 | pattern: /[$^]|\\[ABbGZz]/,
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| 76 | alias: 'function'
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| 77 | },
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| 78 | escape: escape,
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| 79 | group: [
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| 80 | {
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| 81 | // https://docs.oracle.com/javase/10/docs/api/java/util/regex/Pattern.html
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| 82 | // https://docs.microsoft.com/en-us/dotnet/standard/base-types/regular-expression-language-quick-reference?view=netframework-4.7.2#grouping-constructs
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| 83 | // (), (?<name>), (?'name'), (?>), (?:), (?=), (?!), (?<=), (?<!), (?is-m), (?i-m:)
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| 84 | pattern:
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| 85 | /\((?:\?(?:<[^<>']+>|'[^<>']+'|[>:]|<?[=!]|[idmnsuxU]+(?:-[idmnsuxU]+)?:?))?/,
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| 86 | alias: 'punctuation',
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| 87 | inside: {
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| 88 | 'group-name': groupName
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| 89 | }
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| 90 | },
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| 91 | {
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| 92 | pattern: /\)/,
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| 93 | alias: 'punctuation'
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| 94 | }
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| 95 | ],
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| 96 | quantifier: {
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| 97 | pattern: /(?:[+*?]|\{\d+(?:,\d*)?\})[?+]?/,
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| 98 | alias: 'number'
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| 99 | },
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| 100 | alternation: {
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| 101 | pattern: /\|/,
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| 102 | alias: 'keyword'
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| 103 | }
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| 104 | }
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| 105 | })(Prism)
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| 106 | }
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