Ruby: Code cleaning, handle \r\n and \r, fix some regexps

Author: Golmote

components/prism-ruby.js

@@ -5,23 +5,26 @@
  * 		constant, builtin, variable, symbol, regex
  */
 Prism.languages.ruby = Prism.languages.extend('clike', {
-	'comment': /#(?!\{[^\r\n]*?\})[^\r\n]*(\r?\n|$)/,
-	'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|raise|redo|require|rescue|retry|return|self|super|then|throw|true|undef|unless|until|when|while|yield)\b/,
-	'builtin': /\b(Array|Bignum|Binding|Class|Continuation|Dir|Exception|FalseClass|File|Stat|File|Fixnum|Fload|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][a-zA-Z_0-9]*[?!]?\b/
+	'comment': /#(?!\{[^\r\n]*?\}).*/,
+	'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|raise|redo|require|rescue|retry|return|self|super|then|throw|true|undef|unless|until|when|while|yield)\b/
 });
 
 Prism.languages.insertBefore('ruby', 'keyword', {
 	'regex': {
 		pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\r\n])+\/[gim]{0,3}(?=\s*($|[\r\n,.;})]))/,
 		lookbehind: true
 	},
-	'variable': /[@$]+\b[a-zA-Z_][a-zA-Z_0-9]*[?!]?\b/,
-	'symbol': /:\b[a-zA-Z_][a-zA-Z_0-9]*[?!]?\b/
+	'variable': /[@$]+[a-zA-Z_][a-zA-Z_0-9]*(?:[?!]|\b)/,
+	'symbol': /:[a-zA-Z_][a-zA-Z_0-9]*(?:[?!]|\b)/
+});
+
+Prism.languages.insertBefore('ruby', 'number', {
+	'builtin': /\b(Array|Bignum|Binding|Class|Continuation|Dir|Exception|FalseClass|File|Stat|File|Fixnum|Fload|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][a-zA-Z_0-9]*(?:[?!]|\b)/
 });
 
 Prism.languages.ruby.string = {
-	pattern: /("|')(#\{[^}]+\}|\\\n|\\?.)*?\1/,
+	pattern: /("|')(#\{[^}]+\}|\\(?:\r?\n|\r)|\\?.)*?\1/,
 	inside: {
 		'interpolation': {
 			pattern: /#\{[^}]+\}/,