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// https://wren.io/

Prism.languages.wren = {
  // Multiline comments in Wren can have nested multiline comments
  // Comments: // and /* */
  comment: [
    {
      // support 3 levels of nesting
      // regex: \/\*(?:[^*/]|\*(?!\/)|\/(?!\*)|<self>)*\*\/
generated by cgit v1.2.3 (git 2.39.1) at 2025-11-11 08:30:28 +0000
pan>greedy: true, }, { pattern: /(^|[^\\:])\/\/.*/, lookbehind: true, greedy: true, }, ], // Triple quoted strings are multiline but cannot have interpolation (raw strings) // Based on prism-python.js 'triple-quoted-string': { pattern: /"""[\s\S]*?"""/, greedy: true, alias: 'string', }, // see below 'string-literal': null, // #!/usr/bin/env wren on the first line hashbang: { pattern: /^#!\/.+/, greedy: true, alias: 'comment', }, // Attributes are special keywords to add meta data to classes attribute: { // #! attributes are stored in class properties // #!myvar = true // #attributes are not stored and dismissed at compilation pattern: /#!?[ \t\u3000]*\w+/, alias: 'keyword', }, 'class-name': [ { // class definition // class Meta {} pattern: /(\bclass\s+)\w+/, lookbehind: true, }, // A class must always start with an uppercase. // File.read /\b[A-Z][a-z\d_]*\b/, ], // A constant can be a variable, class, property or method. Just named in all uppercase letters constant: /\b[A-Z][A-Z\d_]*\b/, null: { pattern: /\bnull\b/, alias: 'keyword', }, keyword: /\b(?:as|break|class|construct|continue|else|for|foreign|if|import|in|is|return|static|super|this|var|while)\b/, boolean: /\b(?:false|true)\b/, number: /\b(?:0x[\da-f]+|\d+(?:\.\d+)?(?:e[+-]?\d+)?)\b/i, // Functions can be Class.method() function: /\b[a-z_]\w*(?=\s*[({])/i, operator: /<<|>>|[=!<>]=?|&&|\|\||[-+*/%~^&|?:]|\.{2,3}/, punctuation: /[\[\](){}.,;]/, }; Prism.languages.wren['string-literal'] = { // A single quote string is multiline and can have interpolation (similar to JS backticks ``) pattern: /(^|[^\\"])"(?:[^\\"%]|\\[\s\S]|%(?!\()|%\((?:[^()]|\((?:[^()]|\([^)]*\))*\))*\))*"/, lookbehind: true, greedy: true, inside: { interpolation: { // "%(interpolation)" pattern: /((?:^|[^\\])(?:\\{2})*)%\((?:[^()]|\((?:[^()]|\([^)]*\))*\))*\)/, lookbehind: true, inside: { expression: { pattern: /^(%\()[\s\S]+(?=\)$)/, lookbehind: true, inside: Prism.languages.wren, }, 'interpolation-punctuation': { pattern: /^%\(|\)$/, alias: 'punctuation', }, }, }, string: /[\s\S]+/, }, };