102 lines
3.6 KiB
JavaScript
102 lines
3.6 KiB
JavaScript
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(function (Prism) {
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function literal(str) {
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return function () { return str; };
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}
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var keyword = /\b(?:align|allowzero|and|asm|async|await|break|cancel|catch|comptime|const|continue|defer|else|enum|errdefer|error|export|extern|fn|for|if|inline|linksection|nakedcc|noalias|null|or|orelse|packed|promise|pub|resume|return|stdcallcc|struct|suspend|switch|test|threadlocal|try|undefined|union|unreachable|usingnamespace|var|volatile|while)\b/;
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var IDENTIFIER = '\\b(?!' + keyword.source + ')(?!\\d)\\w+\\b';
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var ALIGN = /align\s*\((?:[^()]|\([^()]*\))*\)/.source;
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var PREFIX_TYPE_OP = /(?:\?|\bpromise->|(?:\[[^[\]]*\]|\*(?!\*)|\*\*)(?:\s*<ALIGN>|\s*const\b|\s*volatile\b|\s*allowzero\b)*)/.source.replace(/<ALIGN>/g, literal(ALIGN));
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var SUFFIX_EXPR = /(?:\bpromise\b|(?:\berror\.)?<ID>(?:\.<ID>)*(?!\s+<ID>))/.source.replace(/<ID>/g, literal(IDENTIFIER));
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var TYPE = '(?!\\s)(?:!?\\s*(?:' + PREFIX_TYPE_OP + '\\s*)*' + SUFFIX_EXPR + ')+';
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/*
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* A simplified grammar for Zig compile time type literals:
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*
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* TypeExpr = ( "!"? PREFIX_TYPE_OP* SUFFIX_EXPR )+
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*
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* SUFFIX_EXPR = ( \b "promise" \b | ( \b "error" "." )? IDENTIFIER ( "." IDENTIFIER )* (?! \s+ IDENTIFIER ) )
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*
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* PREFIX_TYPE_OP = "?"
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* | \b "promise" "->"
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* | ( "[" [^\[\]]* "]" | "*" | "**" ) ( ALIGN | "const" \b | "volatile" \b | "allowzero" \b )*
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*
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* ALIGN = "align" "(" ( [^()] | "(" [^()]* ")" )* ")"
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*
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* IDENTIFIER = \b (?! KEYWORD ) [a-zA-Z_] \w* \b
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*
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*/
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Prism.languages.zig = {
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'comment': [
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{
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pattern: /\/{3}.*/,
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alias: 'doc-comment'
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},
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/\/{2}.*/
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],
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'string': [
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{
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// "string" and c"string"
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pattern: /(^|[^\\@])c?"(?:[^"\\\r\n]|\\.)*"/,
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lookbehind: true,
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greedy: true
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},
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{
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// multiline strings and c-strings
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pattern: /([\r\n])([ \t]+c?\\{2}).*(?:(?:\r\n?|\n)\2.*)*/,
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lookbehind: true,
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greedy: true
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},
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{
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// characters 'a', '\n', '\xFF', '\u{10FFFF}'
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pattern: /(^|[^\\])'(?:[^'\\\r\n]|\\(?:.|x[a-fA-F\d]{2}|u\{[a-fA-F\d]{1,6}\}))'/,
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lookbehind: true,
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greedy: true
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}
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],
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'builtin': /\B@(?!\d)\w+(?=\s*\()/,
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'label': {
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pattern: /(\b(?:break|continue)\s*:\s*)\w+\b|\b(?!\d)\w+\b(?=\s*:\s*(?:\{|while\b))/,
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lookbehind: true
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},
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'class-name': [
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// const Foo = struct {};
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/\b(?!\d)\w+(?=\s*=\s*(?:(?:extern|packed)\s+)?(?:enum|struct|union)\s*[({])/,
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{
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// const x: i32 = 9;
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// var x: Bar;
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// fn foo(x: bool, y: f32) void {}
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pattern: RegExp(/(:\s*)<TYPE>(?=\s*(?:<ALIGN>\s*)?[=;,)])|<TYPE>(?=\s*(?:<ALIGN>\s*)?\{)/.source.replace(/<TYPE>/g, literal(TYPE)).replace(/<ALIGN>/g, literal(ALIGN))),
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lookbehind: true,
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inside: null // see below
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},
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{
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// extern fn foo(x: f64) f64; (optional alignment)
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pattern: RegExp(/(\)\s*)<TYPE>(?=\s*(?:<ALIGN>\s*)?;)/.source.replace(/<TYPE>/g, literal(TYPE)).replace(/<ALIGN>/g, literal(ALIGN))),
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lookbehind: true,
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inside: null // see below
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}
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],
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'builtin-types': {
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pattern: /\b(?:anyerror|bool|c_u?(?:short|int|long|longlong)|c_longdouble|c_void|comptime_(?:float|int)|[iu](?:8|16|32|64|128|size)|f(?:16|32|64|128)|noreturn|type|void)\b/,
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alias: 'keyword'
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},
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'keyword': keyword,
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'function': /\b(?!\d)\w+(?=\s*\()/,
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'number': /\b(?:0b[01]+|0o[0-7]+|0x[a-fA-F\d]+\.?[a-fA-F\d]*(?:[pP][+-]?[a-fA-F\d]+)?|\d+\.?\d*(?:[eE][+-]?\d+)?)\b/,
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'boolean': /\b(?:false|true)\b/,
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'operator': /\.[*?]|\.{2,3}|[-=]>|\*\*|\+\+|\|\||(?:<<|>>|[-+*]%|[-+*/%^&|<>!=])=?|[?~]/,
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'punctuation': /[.:,;(){}[\]]/
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};
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Prism.languages.zig['class-name'].forEach(function (obj) {
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if (obj.inside === null) {
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obj.inside = Prism.languages.zig;
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}
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});
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}(Prism));
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