Keyman: Regexp optimisation + don't use captures if not needed

components/prism-keyman.js

@@ -1,14 +1,14 @@
 Prism.languages.keyman = {
 	'comment': /\bc\s.*/i,
-	'function': /\[\s*((CTRL|SHIFT|ALT|LCTRL|RCTRL|LALT|RALT|CAPS|NCAPS)\s+)*([TKU]_[a-z0-9_?]+|".+?"|'.+?')\s*\]/i,  // virtual key
-	'string': /("|')((?!\1).)*\1/,
+	'function': /\[\s*(?:(?:CTRL|SHIFT|ALT|LCTRL|RCTRL|LALT|RALT|CAPS|NCAPS)\s+)*(?:[TKU]_[\w?]+|".+?"|'.+?')\s*\]/i,  // virtual key
+	'string': /("|').*?\1/,
 	'bold': [   // header statements, system stores and variable system stores
-		/&(baselayout|bitmap|capsononly|capsalwaysoff|shiftfreescaps|copyright|ethnologuecode|hotkey|includecodes|keyboardversion|kmw_embedcss|kmw_embedjs|kmw_helpfile|kmw_helptext|kmw_rtl|language|layer|layoutfile|message|mnemoniclayout|name|oldcharposmatching|platform|targets|version|visualkeyboard|windowslanguages)\b/i,
-		/\b(bitmap|bitmaps|caps on only|caps always off|shift frees caps|copyright|hotkey|language|layout|message|name|version)\b/i
+		/&(?:baselayout|bitmap|capsononly|capsalwaysoff|shiftfreescaps|copyright|ethnologuecode|hotkey|includecodes|keyboardversion|kmw_embedcss|kmw_embedjs|kmw_helpfile|kmw_helptext|kmw_rtl|language|layer|layoutfile|message|mnemoniclayout|name|oldcharposmatching|platform|targets|version|visualkeyboard|windowslanguages)\b/i,
+		/\b(?:bitmap|bitmaps|caps on only|caps always off|shift frees caps|copyright|hotkey|language|layout|message|name|version)\b/i
 	],
-	'keyword': /\b(any|baselayout|beep|call|context|deadkey|dk|if|index|layer|notany|nul|outs|platform|return|reset|save|set|store|use)\b/i,  // rule keywords
-	'atrule': /\b(ansi|begin|unicode|group|using keys|match|nomatch)\b/i,   // structural keywords
-	'number': /\b(U\+[\dA-F]+|d\d+|x[\da-f]+|\d+)\b/i, // U+####, x###, d### characters and numbers
+	'keyword': /\b(?:any|baselayout|beep|call|context|deadkey|dk|if|index|layer|notany|nul|outs|platform|return|reset|save|set|store|use)\b/i,  // rule keywords
+	'atrule': /\b(?:ansi|begin|unicode|group|using keys|match|nomatch)\b/i,   // structural keywords
+	'number': /\b(?:U\+[\dA-F]+|d\d+|x[\da-f]+|\d+)\b/i, // U+####, x###, d### characters and numbers
 	'operator': /[+>\\,()]/,
-	'tag': /\$(keyman|kmfl|weaver|keymanweb|keymanonly):/i   // prefixes
+	'tag': /\$(?:keyman|kmfl|weaver|keymanweb|keymanonly):/i   // prefixes
 };