| 1 | 'use strict'
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| 2 |
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| 3 | module.exports = rust
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| 4 | rust.displayName = 'rust'
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| 5 | rust.aliases = []
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| 6 | function rust(Prism) {
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| 7 | ;(function (Prism) {
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| 8 | var multilineComment = /\/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|<self>)*\*\//.source
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| 9 | for (var i = 0; i < 2; i++) {
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| 10 | // support 4 levels of nested comments
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| 11 | multilineComment = multilineComment.replace(/<self>/g, function () {
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| 12 | return multilineComment
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| 13 | })
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| 14 | }
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| 15 | multilineComment = multilineComment.replace(/<self>/g, function () {
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| 16 | return /[^\s\S]/.source
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| 17 | })
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| 18 | Prism.languages.rust = {
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| 19 | comment: [
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| 20 | {
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| 21 | pattern: RegExp(/(^|[^\\])/.source + multilineComment),
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| 22 | lookbehind: true,
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| 23 | greedy: true
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| 24 | },
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| 25 | {
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| 26 | pattern: /(^|[^\\:])\/\/.*/,
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| 27 | lookbehind: true,
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| 28 | greedy: true
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| 29 | }
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| 30 | ],
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| 31 | string: {
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| 32 | pattern: /b?"(?:\\[\s\S]|[^\\"])*"|b?r(#*)"(?:[^"]|"(?!\1))*"\1/,
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| 33 | greedy: true
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| 34 | },
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| 35 | char: {
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| 36 | pattern:
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| 37 | /b?'(?:\\(?:x[0-7][\da-fA-F]|u\{(?:[\da-fA-F]_*){1,6}\}|.)|[^\\\r\n\t'])'/,
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| 38 | greedy: true
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| 39 | },
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| 40 | attribute: {
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| 41 | pattern: /#!?\[(?:[^\[\]"]|"(?:\\[\s\S]|[^\\"])*")*\]/,
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| 42 | greedy: true,
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| 43 | alias: 'attr-name',
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| 44 | inside: {
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| 45 | string: null // see below
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| 46 | }
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| 47 | },
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| 48 | // Closure params should not be confused with bitwise OR |
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| 49 | 'closure-params': {
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| 50 | pattern: /([=(,:]\s*|\bmove\s*)\|[^|]*\||\|[^|]*\|(?=\s*(?:\{|->))/,
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| 51 | lookbehind: true,
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| 52 | greedy: true,
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| 53 | inside: {
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| 54 | 'closure-punctuation': {
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| 55 | pattern: /^\||\|$/,
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| 56 | alias: 'punctuation'
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| 57 | },
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| 58 | rest: null // see below
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| 59 | }
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| 60 | },
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| 61 | 'lifetime-annotation': {
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| 62 | pattern: /'\w+/,
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| 63 | alias: 'symbol'
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| 64 | },
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| 65 | 'fragment-specifier': {
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| 66 | pattern: /(\$\w+:)[a-z]+/,
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| 67 | lookbehind: true,
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| 68 | alias: 'punctuation'
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| 69 | },
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| 70 | variable: /\$\w+/,
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| 71 | 'function-definition': {
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| 72 | pattern: /(\bfn\s+)\w+/,
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| 73 | lookbehind: true,
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| 74 | alias: 'function'
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| 75 | },
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| 76 | 'type-definition': {
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| 77 | pattern: /(\b(?:enum|struct|trait|type|union)\s+)\w+/,
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| 78 | lookbehind: true,
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| 79 | alias: 'class-name'
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| 80 | },
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| 81 | 'module-declaration': [
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| 82 | {
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| 83 | pattern: /(\b(?:crate|mod)\s+)[a-z][a-z_\d]*/,
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| 84 | lookbehind: true,
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| 85 | alias: 'namespace'
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| 86 | },
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| 87 | {
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| 88 | pattern:
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| 89 | /(\b(?:crate|self|super)\s*)::\s*[a-z][a-z_\d]*\b(?:\s*::(?:\s*[a-z][a-z_\d]*\s*::)*)?/,
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| 90 | lookbehind: true,
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| 91 | alias: 'namespace',
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| 92 | inside: {
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| 93 | punctuation: /::/
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| 94 | }
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| 95 | }
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| 96 | ],
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| 97 | keyword: [
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| 98 | // https://github.com/rust-lang/reference/blob/master/src/keywords.md
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| 99 | /\b(?:Self|abstract|as|async|await|become|box|break|const|continue|crate|do|dyn|else|enum|extern|final|fn|for|if|impl|in|let|loop|macro|match|mod|move|mut|override|priv|pub|ref|return|self|static|struct|super|trait|try|type|typeof|union|unsafe|unsized|use|virtual|where|while|yield)\b/, // primitives and str
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| 100 | // https://doc.rust-lang.org/stable/rust-by-example/primitives.html
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| 101 | /\b(?:bool|char|f(?:32|64)|[ui](?:8|16|32|64|128|size)|str)\b/
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| 102 | ],
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| 103 | // functions can technically start with an upper-case letter, but this will introduce a lot of false positives
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| 104 | // and Rust's naming conventions recommend snake_case anyway.
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| 105 | // https://doc.rust-lang.org/1.0.0/style/style/naming/README.html
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| 106 | function: /\b[a-z_]\w*(?=\s*(?:::\s*<|\())/,
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| 107 | macro: {
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| 108 | pattern: /\b\w+!/,
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| 109 | alias: 'property'
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| 110 | },
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| 111 | constant: /\b[A-Z_][A-Z_\d]+\b/,
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| 112 | 'class-name': /\b[A-Z]\w*\b/,
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| 113 | namespace: {
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| 114 | pattern: /(?:\b[a-z][a-z_\d]*\s*::\s*)*\b[a-z][a-z_\d]*\s*::(?!\s*<)/,
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| 115 | inside: {
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| 116 | punctuation: /::/
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| 117 | }
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| 118 | },
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| 119 | // Hex, oct, bin, dec numbers with visual separators and type suffix
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| 120 | number:
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| 121 | /\b(?:0x[\dA-Fa-f](?:_?[\dA-Fa-f])*|0o[0-7](?:_?[0-7])*|0b[01](?:_?[01])*|(?:(?:\d(?:_?\d)*)?\.)?\d(?:_?\d)*(?:[Ee][+-]?\d+)?)(?:_?(?:f32|f64|[iu](?:8|16|32|64|size)?))?\b/,
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| 122 | boolean: /\b(?:false|true)\b/,
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| 123 | punctuation: /->|\.\.=|\.{1,3}|::|[{}[\];(),:]/,
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| 124 | operator: /[-+*\/%!^]=?|=[=>]?|&[&=]?|\|[|=]?|<<?=?|>>?=?|[@?]/
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| 125 | }
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| 126 | Prism.languages.rust['closure-params'].inside.rest = Prism.languages.rust
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| 127 | Prism.languages.rust['attribute'].inside['string'] =
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| 128 | Prism.languages.rust['string']
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| 129 | })(Prism)
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| 130 | }
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