| 1 | 'use strict'
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| 2 |
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| 3 | module.exports = c
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| 4 | c.displayName = 'c'
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| 5 | c.aliases = []
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| 6 | function c(Prism) {
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| 7 | Prism.languages.c = Prism.languages.extend('clike', {
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| 8 | comment: {
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| 9 | pattern:
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| 10 | /\/\/(?:[^\r\n\\]|\\(?:\r\n?|\n|(?![\r\n])))*|\/\*[\s\S]*?(?:\*\/|$)/,
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| 11 | greedy: true
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| 12 | },
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| 13 | string: {
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| 14 | // https://en.cppreference.com/w/c/language/string_literal
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| 15 | pattern: /"(?:\\(?:\r\n|[\s\S])|[^"\\\r\n])*"/,
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| 16 | greedy: true
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| 17 | },
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| 18 | 'class-name': {
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| 19 | pattern:
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| 20 | /(\b(?:enum|struct)\s+(?:__attribute__\s*\(\([\s\S]*?\)\)\s*)?)\w+|\b[a-z]\w*_t\b/,
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| 21 | lookbehind: true
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| 22 | },
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| 23 | keyword:
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| 24 | /\b(?:_Alignas|_Alignof|_Atomic|_Bool|_Complex|_Generic|_Imaginary|_Noreturn|_Static_assert|_Thread_local|__attribute__|asm|auto|break|case|char|const|continue|default|do|double|else|enum|extern|float|for|goto|if|inline|int|long|register|return|short|signed|sizeof|static|struct|switch|typedef|typeof|union|unsigned|void|volatile|while)\b/,
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| 25 | function: /\b[a-z_]\w*(?=\s*\()/i,
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| 26 | number:
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| 27 | /(?:\b0x(?:[\da-f]+(?:\.[\da-f]*)?|\.[\da-f]+)(?:p[+-]?\d+)?|(?:\b\d+(?:\.\d*)?|\B\.\d+)(?:e[+-]?\d+)?)[ful]{0,4}/i,
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| 28 | operator: />>=?|<<=?|->|([-+&|:])\1|[?:~]|[-+*/%&|^!=<>]=?/
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| 29 | })
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| 30 | Prism.languages.insertBefore('c', 'string', {
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| 31 | char: {
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| 32 | // https://en.cppreference.com/w/c/language/character_constant
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| 33 | pattern: /'(?:\\(?:\r\n|[\s\S])|[^'\\\r\n]){0,32}'/,
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| 34 | greedy: true
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| 35 | }
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| 36 | })
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| 37 | Prism.languages.insertBefore('c', 'string', {
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| 38 | macro: {
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| 39 | // allow for multiline macro definitions
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| 40 | // spaces after the # character compile fine with gcc
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| 41 | pattern:
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| 42 | /(^[\t ]*)#\s*[a-z](?:[^\r\n\\/]|\/(?!\*)|\/\*(?:[^*]|\*(?!\/))*\*\/|\\(?:\r\n|[\s\S]))*/im,
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| 43 | lookbehind: true,
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| 44 | greedy: true,
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| 45 | alias: 'property',
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| 46 | inside: {
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| 47 | string: [
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| 48 | {
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| 49 | // highlight the path of the include statement as a string
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| 50 | pattern: /^(#\s*include\s*)<[^>]+>/,
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| 51 | lookbehind: true
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| 52 | },
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| 53 | Prism.languages.c['string']
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| 54 | ],
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| 55 | char: Prism.languages.c['char'],
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| 56 | comment: Prism.languages.c['comment'],
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| 57 | 'macro-name': [
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| 58 | {
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| 59 | pattern: /(^#\s*define\s+)\w+\b(?!\()/i,
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| 60 | lookbehind: true
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| 61 | },
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| 62 | {
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| 63 | pattern: /(^#\s*define\s+)\w+\b(?=\()/i,
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| 64 | lookbehind: true,
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| 65 | alias: 'function'
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| 66 | }
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| 67 | ],
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| 68 | // highlight macro directives as keywords
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| 69 | directive: {
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| 70 | pattern: /^(#\s*)[a-z]+/,
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| 71 | lookbehind: true,
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| 72 | alias: 'keyword'
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| 73 | },
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| 74 | 'directive-hash': /^#/,
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| 75 | punctuation: /##|\\(?=[\r\n])/,
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| 76 | expression: {
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| 77 | pattern: /\S[\s\S]*/,
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| 78 | inside: Prism.languages.c
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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 | Prism.languages.insertBefore('c', 'function', {
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| 84 | // highlight predefined macros as constants
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| 85 | constant:
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| 86 | /\b(?:EOF|NULL|SEEK_CUR|SEEK_END|SEEK_SET|__DATE__|__FILE__|__LINE__|__TIMESTAMP__|__TIME__|__func__|stderr|stdin|stdout)\b/
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| 87 | })
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| 88 | delete Prism.languages.c['boolean']
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| 89 | }
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