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* @param {string} value\n * @returns {RegExp}\n * */\n\n/**\n * @param {RegExp | string } re\n * @returns {string}\n */\nfunction source(re) {\n if (!re) return null;\n if (typeof re === \"string\") return re;\n\n return re.source;\n}\n\n/**\n * @param {RegExp | string } re\n * @returns {string}\n */\nfunction lookahead(re) {\n return concat('(?=', re, ')');\n}\n\n/**\n * @param {...(RegExp | string) } args\n * @returns {string}\n */\nfunction concat(...args) {\n const joined = args.map((x) => source(x)).join(\"\");\n return joined;\n}\n\n/*\nLanguage: Ruby\nDescription: Ruby is a dynamic, open source programming language with a focus on simplicity and productivity.\nWebsite: https://www.ruby-lang.org/\nAuthor: Anton Kovalyov <anton@kovalyov.net>\nContributors: Peter Leonov <gojpeg@yandex.ru>, Vasily Polovnyov <vast@whiteants.net>, Loren Segal <lsegal@soen.ca>, Pascal Hurni <phi@ruby-reactive.org>, Cedric Sohrauer <sohrauer@googlemail.com>\nCategory: common\n*/\n\nfunction ruby(hljs) 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[hljs.BACKSLASH_ESCAPE, SUBST],\n variants: [\n {begin: /'/, end: /'/},\n {begin: /\"/, end: /\"/},\n {begin: /`/, end: /`/},\n {begin: /%[qQwWx]?\\(/, end: /\\)/},\n {begin: /%[qQwWx]?\\[/, end: /\\]/},\n {begin: /%[qQwWx]?\\{/, end: /\\}/},\n {begin: /%[qQwWx]?</, end: />/},\n {begin: /%[qQwWx]?\\//, end: /\\//},\n {begin: /%[qQwWx]?%/, end: /%/},\n {begin: /%[qQwWx]?-/, end: /-/},\n {begin: /%[qQwWx]?\\|/, end: /\\|/},\n {\n // \\B in the beginning suppresses recognition of ?-sequences where ?\n // is the last character of a preceding identifier, as in: `func?4`\n begin: /\\B\\?(\\\\\\d{1,3}|\\\\x[A-Fa-f0-9]{1,2}|\\\\u[A-Fa-f0-9]{4}|\\\\?\\S)\\b/\n },\n { // heredocs\n begin: /<<[-~]?'?(\\w+)\\n(?:[^\\n]*\\n)*?\\s*\\1\\b/,\n returnBegin: true,\n contains: [\n { begin: /<<[-~]?'?/ },\n hljs.END_SAME_AS_BEGIN({\n begin: /(\\w+)/, end: /(\\w+)/,\n contains: [hljs.BACKSLASH_ESCAPE, SUBST],\n })\n ]\n }\n ]\n };\n\n // Ruby syntax is underdocumented, but this grammar seems to be accurate\n // as of version 2.7.2 (confirmed with (irb and `Ripper.sexp(...)`)\n // https://docs.ruby-lang.org/en/2.7.0/doc/syntax/literals_rdoc.html#label-Numbers\n var decimal = '[1-9](_?[0-9])*|0';\n var digits = '[0-9](_?[0-9])*';\n var NUMBER = {\n className: 'number', relevance: 0,\n variants: [\n // decimal integer/float, optionally exponential or rational, optionally imaginary\n { begin: `\\\\b(${decimal})(\\\\.(${digits}))?([eE][+-]?(${digits})|r)?i?\\\\b` },\n\n // explicit decimal/binary/octal/hexadecimal integer,\n // optionally rational and/or imaginary\n { begin: \"\\\\b0[dD][0-9](_?[0-9])*r?i?\\\\b\" },\n { begin: \"\\\\b0[bB][0-1](_?[0-1])*r?i?\\\\b\" },\n { begin: \"\\\\b0[oO][0-7](_?[0-7])*r?i?\\\\b\" },\n { begin: \"\\\\b0[xX][0-9a-fA-F](_?[0-9a-fA-F])*r?i?\\\\b\" },\n\n // 0-prefixed implicit octal integer, optionally rational and/or imaginary\n { begin: \"\\\\b0(_?[0-7])+r?i?\\\\b\" },\n ]\n };\n\n var PARAMS = {\n className: 'params',\n begin: '\\\\(', end: '\\\\)', endsParent: true,\n keywords: RUBY_KEYWORDS\n };\n\n var RUBY_DEFAULT_CONTAINS = [\n STRING,\n {\n className: 'class',\n beginKeywords: 'class module', end: '$|;',\n illegal: /=/,\n contains: [\n hljs.inherit(hljs.TITLE_MODE, {begin: '[A-Za-z_]\\\\w*(::\\\\w+)*(\\\\?|!)?'}),\n {\n begin: '<\\\\s*',\n contains: [{\n begin: '(' + hljs.IDENT_RE + '::)?' + hljs.IDENT_RE\n }]\n }\n ].concat(COMMENT_MODES)\n },\n {\n className: 'function',\n // def method_name(\n // def method_name;\n // def method_name (end of line)\n begin: concat(/def\\s*/, lookahead(RUBY_METHOD_RE + \"\\\\s*(\\\\(|;|$)\")),\n keywords: \"def\",\n end: '$|;',\n contains: [\n hljs.inherit(hljs.TITLE_MODE, {begin: RUBY_METHOD_RE}),\n PARAMS\n ].concat(COMMENT_MODES)\n },\n {\n // swallow namespace qualifiers before symbols\n begin: hljs.IDENT_RE + '::'\n },\n {\n className: 'symbol',\n begin: hljs.UNDERSCORE_IDENT_RE + '(!|\\\\?)?:',\n relevance: 0\n },\n {\n className: 'symbol',\n begin: ':(?!\\\\s)',\n contains: [STRING, {begin: RUBY_METHOD_RE}],\n relevance: 0\n },\n NUMBER,\n {\n // negative-look forward attemps to prevent false matches like:\n // @ident@ or $ident$ that might indicate this is not ruby at all\n className: \"variable\",\n begin: '(\\\\$\\\\W)|((\\\\$|@@?)(\\\\w+))(?=[^@$?])' + `(?![A-Za-z])(?![@$?'])`\n },\n {\n className: 'params',\n begin: /\\|/,\n end: /\\|/,\n relevance:0, // this could be a lot of things (in other languages) other than params\n keywords: RUBY_KEYWORDS\n },\n { // regexp container\n begin: '(' + hljs.RE_STARTERS_RE + '|unless)\\\\s*',\n keywords: 'unless',\n contains: [\n {\n className: 'regexp',\n contains: [hljs.BACKSLASH_ESCAPE, SUBST],\n illegal: /\\n/,\n variants: [\n {begin: '/', end: '/[a-z]*'},\n {begin: /%r\\{/, end: /\\}[a-z]*/},\n {begin: '%r\\\\(', end: '\\\\)[a-z]*'},\n {begin: '%r!', end: '![a-z]*'},\n {begin: '%r\\\\[', end: '\\\\][a-z]*'}\n ]\n }\n ].concat(IRB_OBJECT, COMMENT_MODES),\n relevance: 0\n }\n ].concat(IRB_OBJECT, COMMENT_MODES);\n\n SUBST.contains = RUBY_DEFAULT_CONTAINS;\n PARAMS.contains = RUBY_DEFAULT_CONTAINS;\n\n // >>\n // ?>\n var SIMPLE_PROMPT = \"[>?]>\";\n // irb(main):001:0>\n var DEFAULT_PROMPT = \"[\\\\w#]+\\\\(\\\\w+\\\\):\\\\d+:\\\\d+>\";\n var RVM_PROMPT = \"(\\\\w+-)?\\\\d+\\\\.\\\\d+\\\\.\\\\d+(p\\\\d+)?[^\\\\d][^>]+>\";\n\n var IRB_DEFAULT = [\n {\n begin: /^\\s*=>/,\n starts: {\n end: '$', contains: RUBY_DEFAULT_CONTAINS\n }\n },\n {\n className: 'meta',\n begin: '^('+SIMPLE_PROMPT+\"|\"+DEFAULT_PROMPT+'|'+RVM_PROMPT+')(?=[ ])',\n starts: {\n end: '$', contains: RUBY_DEFAULT_CONTAINS\n }\n }\n ];\n\n COMMENT_MODES.unshift(IRB_OBJECT);\n\n return {\n name: 'Ruby',\n aliases: ['rb', 'gemspec', 'podspec', 'thor', 'irb'],\n keywords: RUBY_KEYWORDS,\n illegal: /\\/\\*/,\n contains: [\n hljs.SHEBANG({binary:\"ruby\"}),\n ]\n .concat(IRB_DEFAULT)\n .concat(COMMENT_MODES)\n .concat(RUBY_DEFAULT_CONTAINS)\n };\n}\n\nmodule.exports = ruby;\n"],"sourceRoot":""}
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