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