Also check out davido's personal node for a link to his "Perl Regular Expression Tester". This will allow you to easily see the effect of a given regex upon a given string, although as has been posted elsewhere, this seems to be the part of your problem you have the best handle on.

Give a man a fish:  <%-{-{-{-<

In reply to Re^3: Trypsin digestion by AnomalousMonk
in thread Trypsin digestion by BioUs2003

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