[d24f17c] | 1 | /*
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| 2 | Language: Elixir
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| 3 | Author: Josh Adams <josh@isotope11.com>
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| 4 | Description: language definition for Elixir source code files (.ex and .exs). Based on ruby language support.
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| 5 | Category: functional
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| 6 | Website: https://elixir-lang.org
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| 7 | */
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| 8 |
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| 9 | /** @type LanguageFn */
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| 10 | function elixir(hljs) {
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| 11 | const ELIXIR_IDENT_RE = '[a-zA-Z_][a-zA-Z0-9_.]*(!|\\?)?';
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| 12 | const ELIXIR_METHOD_RE = '[a-zA-Z_]\\w*[!?=]?|[-+~]@|<<|>>|=~|===?|<=>|[<>]=?|\\*\\*|[-/+%^&*~`|]|\\[\\]=?';
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| 13 | const ELIXIR_KEYWORDS = {
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| 14 | $pattern: ELIXIR_IDENT_RE,
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| 15 | keyword: 'and false then defined module in return redo retry end for true self when ' +
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| 16 | 'next until do begin unless nil break not case cond alias while ensure or ' +
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| 17 | 'include use alias fn quote require import with|0'
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| 18 | };
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| 19 | const SUBST = {
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| 20 | className: 'subst',
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| 21 | begin: /#\{/,
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| 22 | end: /\}/,
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| 23 | keywords: ELIXIR_KEYWORDS
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| 24 | };
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| 25 | const NUMBER = {
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| 26 | className: 'number',
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| 27 | begin: '(\\b0o[0-7_]+)|(\\b0b[01_]+)|(\\b0x[0-9a-fA-F_]+)|(-?\\b[1-9][0-9_]*(\\.[0-9_]+([eE][-+]?[0-9]+)?)?)',
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| 28 | relevance: 0
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| 29 | };
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| 30 | const SIGIL_DELIMITERS = '[/|([{<"\']';
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| 31 | const LOWERCASE_SIGIL = {
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| 32 | className: 'string',
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| 33 | begin: '~[a-z]' + '(?=' + SIGIL_DELIMITERS + ')',
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| 34 | contains: [
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| 35 | {
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| 36 | endsParent: true,
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| 37 | contains: [
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| 38 | {
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| 39 | contains: [
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| 40 | hljs.BACKSLASH_ESCAPE,
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| 41 | SUBST
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| 42 | ],
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| 43 | variants: [
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| 44 | {
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| 45 | begin: /"/,
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| 46 | end: /"/
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| 47 | },
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| 48 | {
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| 49 | begin: /'/,
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| 50 | end: /'/
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| 51 | },
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| 52 | {
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| 53 | begin: /\//,
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| 54 | end: /\//
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| 55 | },
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| 56 | {
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| 57 | begin: /\|/,
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| 58 | end: /\|/
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| 59 | },
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| 60 | {
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| 61 | begin: /\(/,
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| 62 | end: /\)/
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| 63 | },
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| 64 | {
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| 65 | begin: /\[/,
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| 66 | end: /\]/
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| 67 | },
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| 68 | {
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| 69 | begin: /\{/,
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| 70 | end: /\}/
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| 71 | },
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| 72 | {
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| 73 | begin: /</,
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| 74 | end: />/
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| 75 | }
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| 76 | ]
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| 77 | }
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| 78 | ]
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| 79 | }
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| 80 | ]
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| 81 | };
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| 82 |
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| 83 | const UPCASE_SIGIL = {
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| 84 | className: 'string',
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| 85 | begin: '~[A-Z]' + '(?=' + SIGIL_DELIMITERS + ')',
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| 86 | contains: [
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| 87 | {
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| 88 | begin: /"/,
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| 89 | end: /"/
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| 90 | },
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| 91 | {
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| 92 | begin: /'/,
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| 93 | end: /'/
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| 94 | },
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| 95 | {
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| 96 | begin: /\//,
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| 97 | end: /\//
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| 98 | },
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| 99 | {
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| 100 | begin: /\|/,
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| 101 | end: /\|/
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| 102 | },
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| 103 | {
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| 104 | begin: /\(/,
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| 105 | end: /\)/
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| 106 | },
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| 107 | {
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| 108 | begin: /\[/,
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| 109 | end: /\]/
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| 110 | },
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| 111 | {
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| 112 | begin: /\{/,
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| 113 | end: /\}/
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| 114 | },
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| 115 | {
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| 116 | begin: /</,
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| 117 | end: />/
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| 118 | }
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| 119 | ]
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| 120 | };
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| 121 |
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| 122 | const STRING = {
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| 123 | className: 'string',
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| 124 | contains: [
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| 125 | hljs.BACKSLASH_ESCAPE,
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| 126 | SUBST
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| 127 | ],
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| 128 | variants: [
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| 129 | {
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| 130 | begin: /"""/,
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| 131 | end: /"""/
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| 132 | },
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| 133 | {
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| 134 | begin: /'''/,
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| 135 | end: /'''/
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| 136 | },
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| 137 | {
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| 138 | begin: /~S"""/,
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| 139 | end: /"""/,
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| 140 | contains: [] // override default
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| 141 | },
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| 142 | {
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| 143 | begin: /~S"/,
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| 144 | end: /"/,
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| 145 | contains: [] // override default
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| 146 | },
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| 147 | {
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| 148 | begin: /~S'''/,
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| 149 | end: /'''/,
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| 150 | contains: [] // override default
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| 151 | },
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| 152 | {
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| 153 | begin: /~S'/,
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| 154 | end: /'/,
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| 155 | contains: [] // override default
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| 156 | },
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| 157 | {
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| 158 | begin: /'/,
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| 159 | end: /'/
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| 160 | },
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| 161 | {
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| 162 | begin: /"/,
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| 163 | end: /"/
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| 164 | }
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| 165 | ]
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| 166 | };
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| 167 | const FUNCTION = {
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| 168 | className: 'function',
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| 169 | beginKeywords: 'def defp defmacro',
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| 170 | end: /\B\b/, // the mode is ended by the title
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| 171 | contains: [
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| 172 | hljs.inherit(hljs.TITLE_MODE, {
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| 173 | begin: ELIXIR_IDENT_RE,
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| 174 | endsParent: true
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| 175 | })
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| 176 | ]
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| 177 | };
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| 178 | const CLASS = hljs.inherit(FUNCTION, {
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| 179 | className: 'class',
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| 180 | beginKeywords: 'defimpl defmodule defprotocol defrecord',
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| 181 | end: /\bdo\b|$|;/
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| 182 | });
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| 183 | const ELIXIR_DEFAULT_CONTAINS = [
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| 184 | STRING,
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| 185 | UPCASE_SIGIL,
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| 186 | LOWERCASE_SIGIL,
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| 187 | hljs.HASH_COMMENT_MODE,
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| 188 | CLASS,
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| 189 | FUNCTION,
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| 190 | {
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| 191 | begin: '::'
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| 192 | },
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| 193 | {
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| 194 | className: 'symbol',
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| 195 | begin: ':(?![\\s:])',
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| 196 | contains: [
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| 197 | STRING,
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| 198 | {
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| 199 | begin: ELIXIR_METHOD_RE
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| 200 | }
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| 201 | ],
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| 202 | relevance: 0
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| 203 | },
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| 204 | {
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| 205 | className: 'symbol',
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| 206 | begin: ELIXIR_IDENT_RE + ':(?!:)',
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| 207 | relevance: 0
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| 208 | },
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| 209 | NUMBER,
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| 210 | {
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| 211 | className: 'variable',
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| 212 | begin: '(\\$\\W)|((\\$|@@?)(\\w+))'
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| 213 | },
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| 214 | {
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| 215 | begin: '->'
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| 216 | },
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| 217 | { // regexp container
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| 218 | begin: '(' + hljs.RE_STARTERS_RE + ')\\s*',
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| 219 | contains: [
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| 220 | hljs.HASH_COMMENT_MODE,
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| 221 | {
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| 222 | // to prevent false regex triggers for the division function:
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| 223 | // /:
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| 224 | begin: /\/: (?=\d+\s*[,\]])/,
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| 225 | relevance: 0,
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| 226 | contains: [NUMBER]
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| 227 | },
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| 228 | {
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| 229 | className: 'regexp',
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| 230 | illegal: '\\n',
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| 231 | contains: [
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| 232 | hljs.BACKSLASH_ESCAPE,
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| 233 | SUBST
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| 234 | ],
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| 235 | variants: [
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| 236 | {
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| 237 | begin: '/',
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| 238 | end: '/[a-z]*'
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| 239 | },
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| 240 | {
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| 241 | begin: '%r\\[',
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| 242 | end: '\\][a-z]*'
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| 243 | }
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| 244 | ]
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| 245 | }
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| 246 | ],
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| 247 | relevance: 0
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| 248 | }
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| 249 | ];
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| 250 | SUBST.contains = ELIXIR_DEFAULT_CONTAINS;
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| 251 |
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| 252 | return {
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| 253 | name: 'Elixir',
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| 254 | keywords: ELIXIR_KEYWORDS,
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| 255 | contains: ELIXIR_DEFAULT_CONTAINS
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| 256 | };
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| 257 | }
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| 258 |
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| 259 | module.exports = elixir;
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