reST: Regexp simplification + don't use captures if not needed

Author: Golmote

components/prism-rest.js

@@ -8,7 +8,7 @@ Prism.languages.rest = {
 			}
 		},
 		{
-			pattern: /(\s*)(?:=+ +)+=+((?:\r?\n|\r)\1.+)+(?:\r?\n|\r)\1(?:=+ +)+=+(?=(?:\r?\n|\r){2}|\s*$)/,
+			pattern: /(\s*)(?:=+ +)+=+(?:(?:\r?\n|\r)\1.+)+(?:\r?\n|\r)\1(?:=+ +)+=+(?=(?:\r?\n|\r){2}|\s*$)/,
 			lookbehind: true,
 			inside: {
 				'punctuation': /[=-]+/
@@ -102,7 +102,7 @@ Prism.languages.rest = {
 		alias: 'attr-name'
 	},
 	'command-line-option': {
-		pattern: /(^\s*)(?:[+-][a-z\d]|(?:\-\-|\/)[a-z\d-]+)(?:[ =](?:[a-z][a-z\d_-]*|<[^<>]+>))?(?:, (?:[+-][a-z\d]|(?:\-\-|\/)[a-z\d-]+)(?:[ =](?:[a-z][a-z\d_-]*|<[^<>]+>))?)*(?=(?:\r?\n|\r)? {2,}\S)/im,
+		pattern: /(^\s*)(?:[+-][a-z\d]|(?:--|\/)[a-z\d-]+)(?:[ =](?:[a-z][\w-]*|<[^<>]+>))?(?:, (?:[+-][a-z\d]|(?:--|\/)[a-z\d-]+)(?:[ =](?:[a-z][\w-]*|<[^<>]+>))?)*(?=(?:\r?\n|\r)? {2,}\S)/im,
 		lookbehind: true,
 		alias: 'symbol'
 	},