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This is great and very clear - thank you!! I've taken on board what you said, experimented by making LABEL long then short to prove the point and sure enough execution times vary wildy. I've altered the regex to now use (\S+) to pick up the LABEL and it now completes in sub-second time. Thanks again!!!

In reply to Re: Re^2: Inefficient regex (death to dot star) by Wibble
in thread Inefficient regex by Wibble

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