(?:(?|(?:\")(?:[^\\\"]*(?:\\.[^\\\"]*)*)(?:\"))) #### ((?:(?|(?:\")(?:[^\\\"]*(?:\\.[^\\\"]*)*)(?:\")))) #### ((?|(?:\")(?:[^\\\"]*(?:\\.[^\\\"]*)*)(?:\"))) #### (?:(?|(?:\")([^\\\"]*(?:\\.[^\\\"]*)*)(?:\"))) #### / \" [^\\\"]* (?: \\. [^\\\"]* )* \" /x