reprism/lib/languages/ruby.js

Modular Syntax highlighting for the web

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = {
  language: 'ruby',
  init: function init(Prism) {
    /**
     * Original by Samuel Flores
     *
     * Adds the following new token classes:
     * 		constant, builtin, variable, symbol, regex
     */
    (function (Prism) {
      Prism.languages.ruby = Prism.languages.extend('clike', {
        comment: [/#.*/, {
          pattern: /^=begin(?:\r?\n|\r)(?:.*(?:\r?\n|\r))*?=end/m,
          greedy: true
        }],
        keyword: /\b(?:alias|and|BEGIN|begin|break|case|class|def|define_method|defined|do|each|else|elsif|END|end|ensure|false|for|if|in|module|new|next|nil|not|or|protected|private|public|raise|redo|require|rescue|retry|return|self|super|then|throw|true|undef|unless|until|when|while|yield)\b/
      });

      var interpolation = {
        pattern: /#\{[^}]+\}/,
        inside: {
          delimiter: {
            pattern: /^#\{|\}$/,
            alias: 'tag'
          },
          rest: Prism.languages.ruby
        }
      };

      Prism.languages.insertBefore('ruby', 'keyword', {
        regex: [{
          pattern: /%r([^a-zA-Z0-9\s{(\[<])(?:(?!\1)[^\\]|\\[\s\S])*\1[gim]{0,3}/,
          greedy: true,
          inside: {
            interpolation: interpolation
          }
        }, {
          pattern: /%r\((?:[^()\\]|\\[\s\S])*\)[gim]{0,3}/,
          greedy: true,
          inside: {
            interpolation: interpolation
          }
        }, {
          // Here we need to specifically allow interpolation
          pattern: /%r\{(?:[^#{}\\]|#(?:\{[^}]+\})?|\\[\s\S])*\}[gim]{0,3}/,
          greedy: true,
          inside: {
            interpolation: interpolation
          }
        }, {
          pattern: /%r\[(?:[^\[\]\\]|\\[\s\S])*\][gim]{0,3}/,
          greedy: true,
          inside: {
            interpolation: interpolation
          }
        }, {
          pattern: /%r<(?:[^<>\\]|\\[\s\S])*>[gim]{0,3}/,
          greedy: true,
          inside: {
            interpolation: interpolation
          }
        }, {
          pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\\\r\n])+\/[gim]{0,3}(?=\s*($|[\r\n,.;})]))/,
          lookbehind: true,
          greedy: true
        }],
        variable: /[@$]+[a-zA-Z_]\w*(?:[?!]|\b)/,
        symbol: {
          pattern: /(^|[^:]):[a-zA-Z_]\w*(?:[?!]|\b)/,
          lookbehind: true
        }
      });

      Prism.languages.insertBefore('ruby', 'number', {
        builtin: /\b(?:Array|Bignum|Binding|Class|Continuation|Dir|Exception|FalseClass|File|Stat|Fixnum|Float|Hash|Integer|IO|MatchData|Method|Module|NilClass|Numeric|Object|Proc|Range|Regexp|String|Struct|TMS|Symbol|ThreadGroup|Thread|Time|TrueClass)\b/,
        constant: /\b[A-Z]\w*(?:[?!]|\b)/
      });

      Prism.languages.ruby.string = [{
        pattern: /%[qQiIwWxs]?([^a-zA-Z0-9\s{(\[<])(?:(?!\1)[^\\]|\\[\s\S])*\1/,
        greedy: true,
        inside: {
          interpolation: interpolation
        }
      }, {
        pattern: /%[qQiIwWxs]?\((?:[^()\\]|\\[\s\S])*\)/,
        greedy: true,
        inside: {
          interpolation: interpolation
        }
      }, {
        // Here we need to specifically allow interpolation
        pattern: /%[qQiIwWxs]?\{(?:[^#{}\\]|#(?:\{[^}]+\})?|\\[\s\S])*\}/,
        greedy: true,
        inside: {
          interpolation: interpolation
        }
      }, {
        pattern: /%[qQiIwWxs]?\[(?:[^\[\]\\]|\\[\s\S])*\]/,
        greedy: true,
        inside: {
          interpolation: interpolation
        }
      }, {
        pattern: /%[qQiIwWxs]?<(?:[^<>\\]|\\[\s\S])*>/,
        greedy: true,
        inside: {
          interpolation: interpolation
        }
      }, {
        pattern: /("|')(?:#\{[^}]+\}|\\(?:\r\n|[\s\S])|(?!\1)[^\\\r\n])*\1/,
        greedy: true,
        inside: {
          interpolation: interpolation
        }
      }];
    })(Prism);
  }
};