Re: [Boost-users] Validating file names using regex

((((|(^\\\\[^\\;:\'\"<>]+\\[^\\]+\\)))))(((([^\\;:\'\"\<\>]+)\\)*)*)((([^\\;:\'\"<>]*))(\.?([^\\:;\'\"<>]+)))?)

Is the (^([a-z]:\\?) part supposed to match "c:" ? If so it won't because of the literal "?". There are several possible candidates at http://regexlib.com BTW as well. John.