Ruby: Added missing regex flags (#2845)

components/prism-ruby.js

@@ -40,20 +40,20 @@
 		'regex': [
 			{
 				pattern: RegExp(/%r/.source + '(?:' + [
-					/([^a-zA-Z0-9\s{(\[<])(?:(?!\1)[^\\]|\\[\s\S])*\1[gim]{0,3}/.source,
-					/\((?:[^()\\]|\\[\s\S])*\)[gim]{0,3}/.source,
+					/([^a-zA-Z0-9\s{(\[<])(?:(?!\1)[^\\]|\\[\s\S])*\1/.source,
+					/\((?:[^()\\]|\\[\s\S])*\)/.source,
 					// Here we need to specifically allow interpolation
-					/\{(?:[^#{}\\]|#(?:\{[^}]+\})?|\\[\s\S])*\}[gim]{0,3}/.source,
-					/\[(?:[^\[\]\\]|\\[\s\S])*\][gim]{0,3}/.source,
-					/<(?:[^<>\\]|\\[\s\S])*>[gim]{0,3}/.source
-				].join('|') + ')'),
+					/\{(?:[^#{}\\]|#(?:\{[^}]+\})?|\\[\s\S])*\}/.source,
+					/\[(?:[^\[\]\\]|\\[\s\S])*\]/.source,
+					/<(?:[^<>\\]|\\[\s\S])*>/.source
+				].join('|') + ')' + /[egimnosux]{0,6}/.source),
 				greedy: true,
 				inside: {
 					'interpolation': interpolation
 				}
 			},
 			{
-				pattern: /(^|[^/])\/(?!\/)(?:\[[^\r\n\]]+\]|\\.|[^[/\\\r\n])+\/[gim]{0,3}(?=\s*(?:$|[\r\n,.;})#]))/,
+				pattern: /(^|[^/])\/(?!\/)(?:\[[^\r\n\]]+\]|\\.|[^[/\\\r\n])+\/[egimnosux]{0,6}(?=\s*(?:$|[\r\n,.;})#]))/,
 				lookbehind: true,
 				greedy: true,
 				inside: {

tests/languages/ruby/regex_feature.test

@@ -2,6 +2,7 @@
 /[bar]/,
 /./i;
 /foo#{bar}/;
+/ab+c/ix
 %r!foo?bar#{39+3}!
 %r(foo?bar#{39+3})
 %r{foo?bar#{39+3}}
@@ -11,6 +12,17 @@
 /foo/ # comment
 /foo#{bar}/ # comment
 
+# flags
+/abc/e
+/abc/g
+/abc/i
+/abc/m
+/abc/n
+/abc/o
+/abc/s
+/abc/u
+/abc/x
+
 ----------------------------------------------------
 
 [
@@ -33,6 +45,8 @@
 	]],
 	["punctuation", ";"],
 
+	["regex", ["/ab+c/ix"]],
+
 	["regex", [
 		"%r!foo?bar",
 		["interpolation", [
@@ -105,7 +119,18 @@
 		]],
 		"/"
 	]],
-	["comment", "# comment"]
+	["comment", "# comment"],
+
+	["comment", "# flags"],
+	["regex", ["/abc/e"]],
+	["regex", ["/abc/g"]],
+	["regex", ["/abc/i"]],
+	["regex", ["/abc/m"]],
+	["regex", ["/abc/n"]],
+	["regex", ["/abc/o"]],
+	["regex", ["/abc/s"]],
+	["regex", ["/abc/u"]],
+	["regex", ["/abc/x"]]
 ]
 
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