101 lines
2.5 KiB
JavaScript
101 lines
2.5 KiB
JavaScript
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// https://wren.io/
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Prism.languages.wren = {
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// Multiline comments in Wren can have nested multiline comments
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// Comments: // and /* */
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'comment': [
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{
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// support 3 levels of nesting
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// regex: \/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|<self>)*\*\/
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pattern: /\/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|\/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|\/\*(?:[^*/]|\*(?!\/)|\/(?!\*))*\*\/)*\*\/)*\*\//,
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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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// Triple quoted strings are multiline but cannot have interpolation (raw strings)
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// Based on prism-python.js
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'triple-quoted-string': {
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pattern: /"""[\s\S]*?"""/,
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greedy: true,
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alias: 'string'
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},
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// see below
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'string-literal': null,
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// #!/usr/bin/env wren on the first line
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'hashbang': {
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pattern: /^#!\/.+/,
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greedy: true,
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alias: 'comment'
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},
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// Attributes are special keywords to add meta data to classes
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'attribute': {
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// #! attributes are stored in class properties
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// #!myvar = true
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// #attributes are not stored and dismissed at compilation
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pattern: /#!?[ \t\u3000]*\w+/,
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alias: 'keyword'
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},
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'class-name': [
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{
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// class definition
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// class Meta {}
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pattern: /(\bclass\s+)\w+/,
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lookbehind: true
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},
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// A class must always start with an uppercase.
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// File.read
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/\b[A-Z][a-z\d_]*\b/,
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],
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// A constant can be a variable, class, property or method. Just named in all uppercase letters
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'constant': /\b[A-Z][A-Z\d_]*\b/,
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'null': {
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pattern: /\bnull\b/,
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alias: 'keyword'
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},
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'keyword': /\b(?:as|break|class|construct|continue|else|for|foreign|if|import|in|is|return|static|super|this|var|while)\b/,
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'boolean': /\b(?:false|true)\b/,
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'number': /\b(?:0x[\da-f]+|\d+(?:\.\d+)?(?:e[+-]?\d+)?)\b/i,
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// Functions can be Class.method()
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'function': /\b[a-z_]\w*(?=\s*[({])/i,
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'operator': /<<|>>|[=!<>]=?|&&|\|\||[-+*/%~^&|?:]|\.{2,3}/,
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'punctuation': /[\[\](){}.,;]/,
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};
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Prism.languages.wren['string-literal'] = {
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// A single quote string is multiline and can have interpolation (similar to JS backticks ``)
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pattern: /(^|[^\\"])"(?:[^\\"%]|\\[\s\S]|%(?!\()|%\((?:[^()]|\((?:[^()]|\([^)]*\))*\))*\))*"/,
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lookbehind: true,
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greedy: true,
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inside: {
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'interpolation': {
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// "%(interpolation)"
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pattern: /((?:^|[^\\])(?:\\{2})*)%\((?:[^()]|\((?:[^()]|\([^)]*\))*\))*\)/,
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lookbehind: true,
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inside: {
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'expression': {
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pattern: /^(%\()[\s\S]+(?=\)$)/,
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lookbehind: true,
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inside: Prism.languages.wren
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},
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'interpolation-punctuation': {
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pattern: /^%\(|\)$/,
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alias: 'punctuation'
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},
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}
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},
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'string': /[\s\S]+/
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}
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};
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