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Re: Progressively slow pattern match
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From: |
Stuart D. Herring |
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Subject: |
Re: Progressively slow pattern match |
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Date: |
Wed, 17 May 2006 13:21:57 -0700 (PDT) |
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User-agent: |
SquirrelMail/1.4.3a-11.EL3 |
> The original regexp looks something like
> "\\(%+[ \t]*\\)*foo"
> in order to match stuff like
> %% %% %% foo
Try "\\(%+\\(?:[ \t]+%+\\)*\\)"? I think that should avoid invoking the
backtracker for long strings of %.
Davis
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