ESLint: Added regexp/no-useless-flag rule (#3150)

.eslintrc.js

@@ -75,6 +75,7 @@ module.exports = {
 		'regexp/no-trivially-nested-assertion': 'warn',
 		'regexp/no-trivially-nested-quantifier': 'warn',
 		'regexp/no-useless-character-class': 'warn',
+		'regexp/no-useless-flag': 'warn',
 		'regexp/no-useless-lazy': 'warn',
 		'regexp/prefer-plus-quantifier': 'warn',
 		'regexp/prefer-question-quantifier': 'warn',

components/prism-ada.js

@@ -1,6 +1,6 @@
 Prism.languages.ada = {
 	'comment': /--.*/,
-	'string': /"(?:""|[^"\r\f\n])*"/i,
+	'string': /"(?:""|[^"\r\f\n])*"/,
 	'number': [
 		{
 			pattern: /\b\d(?:_?\d)*#[\dA-F](?:_?[\dA-F])*(?:\.[\dA-F](?:_?[\dA-F])*)?#(?:E[+-]?\d(?:_?\d)*)?/i
@@ -9,7 +9,7 @@ Prism.languages.ada = {
 			pattern: /\b\d(?:_?\d)*(?:\.\d(?:_?\d)*)?(?:E[+-]?\d(?:_?\d)*)?\b/i
 		}
 	],
-	'attr-name': /\b'\w+/i,
+	'attr-name': /\b'\w+/,
 	'keyword': /\b(?:abort|abs|abstract|accept|access|aliased|all|and|array|at|begin|body|case|constant|declare|delay|delta|digits|do|else|elsif|end|entry|exception|exit|for|function|generic|goto|if|in|interface|is|limited|loop|mod|new|not|null|of|others|out|overriding|package|pragma|private|procedure|protected|raise|range|record|rem|renames|requeue|return|reverse|select|separate|some|subtype|synchronized|tagged|task|terminate|then|type|until|use|when|while|with|xor)\b/i,
 	'boolean': /\b(?:false|true)\b/i,
 	'operator': /<[=>]?|>=?|=>?|:=|\/=?|\*\*?|[&+-]/,

components/prism-aspnet.js

@@ -1,6 +1,6 @@
 Prism.languages.aspnet = Prism.languages.extend('markup', {
 	'page-directive': {
-		pattern: /<%\s*@.*%>/i,
+		pattern: /<%\s*@.*%>/,
 		alias: 'tag',
 		inside: {
 			'page-directive': {
@@ -11,19 +11,19 @@ Prism.languages.aspnet = Prism.languages.extend('markup', {
 		}
 	},
 	'directive': {
-		pattern: /<%.*%>/i,
+		pattern: /<%.*%>/,
 		alias: 'tag',
 		inside: {
 			'directive': {
-				pattern: /<%\s*?[$=%#:]{0,2}|%>/i,
+				pattern: /<%\s*?[$=%#:]{0,2}|%>/,
 				alias: 'tag'
 			},
 			rest: Prism.languages.csharp
 		}
 	}
 });
 // Regexp copied from prism-markup, with a negative look-ahead added
-Prism.languages.aspnet.tag.pattern = /<(?!%)\/?[^\s>\/]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+))?)*\s*\/?>/i;
+Prism.languages.aspnet.tag.pattern = /<(?!%)\/?[^\s>\/]+(?:\s+[^\s>\/=]+(?:=(?:("|')(?:\\[\s\S]|(?!\1)[^\\])*\1|[^\s'">=]+))?)*\s*\/?>/;
 
 // match directives of attribute value foo="<% Bar %>"
 Prism.languages.insertBefore('inside', 'punctuation', {