You have a different problem in your code. Files can match multiple times, in fact, any file that matches 'F:/dean/' will also match 'dean'. But since you let the other of the clauses be determined by keys(), it might be that in one run of your program a file that matches 'F:/dean/' will be mirrorred to C:\test, and in another run 'rel_file|stat_8' will be returned.

Abigail

In reply to Re: Returning regexp pattern that was used to match by Abigail-II
in thread Returning regexp pattern that was used to match by crabbdean

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