Could you provide a code sample to demonstrate your problem? (Something that we could run, that's short, and where the result is not the one you expect see How do I post a question effectively?). Because right now, the answer that can be given to you is "it doesn't.

If you are going for an exact match, index might just do the trick for you (it's understood by more people, less side effects and unexpected behavior, faster)

In reply to Re: Pattern match by Eily
in thread Pattern match by exploreperl

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