正せい規き表ひょう現げんMeaningsNoun1. regular expression; regexKanji used正correct規criteria表front side現right nowPitch accentせいきひょうげんComposed of正せい規きregular; normal; formal; legal; established; legitimateNo-adjective表ひょう現げんexpression; representation; description; representation (of a group)NounExamples1正せい規き表ひょう現げんで空くう白はくはどのように表あらわされるのでしょうか？How is whitespace represented in regular expressions?