129 lines
3.7 KiB
JavaScript
129 lines
3.7 KiB
JavaScript
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(function (Prism) {
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var multilineComment = /\/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|<self>)*\*\//.source;
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for (var i = 0; i < 2; i++) {
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// support 4 levels of nested comments
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multilineComment = multilineComment.replace(/<self>/g, function () { return multilineComment; });
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}
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multilineComment = multilineComment.replace(/<self>/g, function () { return /[^\s\S]/.source; });
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Prism.languages.rust = {
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'comment': [
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{
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pattern: RegExp(/(^|[^\\])/.source + multilineComment),
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lookbehind: true,
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greedy: true
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},
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{
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pattern: /(^|[^\\:])\/\/.*/,
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lookbehind: true,
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greedy: true
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}
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],
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'string': {
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pattern: /b?"(?:\\[\s\S]|[^\\"])*"|b?r(#*)"(?:[^"]|"(?!\1))*"\1/,
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greedy: true
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},
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'char': {
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pattern: /b?'(?:\\(?:x[0-7][\da-fA-F]|u\{(?:[\da-fA-F]_*){1,6}\}|.)|[^\\\r\n\t'])'/,
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greedy: true
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},
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'attribute': {
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pattern: /#!?\[(?:[^\[\]"]|"(?:\\[\s\S]|[^\\"])*")*\]/,
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greedy: true,
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alias: 'attr-name',
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inside: {
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'string': null // see below
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}
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},
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// Closure params should not be confused with bitwise OR |
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'closure-params': {
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pattern: /([=(,:]\s*|\bmove\s*)\|[^|]*\||\|[^|]*\|(?=\s*(?:\{|->))/,
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lookbehind: true,
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greedy: true,
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inside: {
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'closure-punctuation': {
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pattern: /^\||\|$/,
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alias: 'punctuation'
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},
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rest: null // see below
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}
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},
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'lifetime-annotation': {
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pattern: /'\w+/,
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alias: 'symbol'
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},
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'fragment-specifier': {
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pattern: /(\$\w+:)[a-z]+/,
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lookbehind: true,
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alias: 'punctuation'
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},
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'variable': /\$\w+/,
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'function-definition': {
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pattern: /(\bfn\s+)\w+/,
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lookbehind: true,
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alias: 'function'
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},
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'type-definition': {
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pattern: /(\b(?:enum|struct|trait|type|union)\s+)\w+/,
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lookbehind: true,
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alias: 'class-name'
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},
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'module-declaration': [
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{
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pattern: /(\b(?:crate|mod)\s+)[a-z][a-z_\d]*/,
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lookbehind: true,
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alias: 'namespace'
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},
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{
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pattern: /(\b(?:crate|self|super)\s*)::\s*[a-z][a-z_\d]*\b(?:\s*::(?:\s*[a-z][a-z_\d]*\s*::)*)?/,
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lookbehind: true,
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alias: 'namespace',
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inside: {
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'punctuation': /::/
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}
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}
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],
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'keyword': [
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// https://github.com/rust-lang/reference/blob/master/src/keywords.md
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/\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/,
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// primitives and str
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// https://doc.rust-lang.org/stable/rust-by-example/primitives.html
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/\b(?:bool|char|f(?:32|64)|[ui](?:8|16|32|64|128|size)|str)\b/
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],
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// functions can technically start with an upper-case letter, but this will introduce a lot of false positives
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// and Rust's naming conventions recommend snake_case anyway.
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// https://doc.rust-lang.org/1.0.0/style/style/naming/README.html
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'function': /\b[a-z_]\w*(?=\s*(?:::\s*<|\())/,
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'macro': {
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pattern: /\b\w+!/,
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alias: 'property'
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},
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'constant': /\b[A-Z_][A-Z_\d]+\b/,
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'class-name': /\b[A-Z]\w*\b/,
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'namespace': {
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pattern: /(?:\b[a-z][a-z_\d]*\s*::\s*)*\b[a-z][a-z_\d]*\s*::(?!\s*<)/,
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inside: {
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'punctuation': /::/
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}
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},
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// Hex, oct, bin, dec numbers with visual separators and type suffix
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'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/,
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'boolean': /\b(?:false|true)\b/,
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'punctuation': /->|\.\.=|\.{1,3}|::|[{}[\];(),:]/,
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'operator': /[-+*\/%!^]=?|=[=>]?|&[&=]?|\|[|=]?|<<?=?|>>?=?|[@?]/
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};
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Prism.languages.rust['closure-params'].inside.rest = Prism.languages.rust;
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Prism.languages.rust['attribute'].inside['string'] = Prism.languages.rust['string'];
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}(Prism));
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