in reply to Re^2: Regex negative word
in thread Regex negative word

You are absolutely right! But, rereading the question, the whitespace and the dog aren't necessary, either. zer just asked for a regex that matches a string which does not begin with cat. So, I think /^(?!cat)/ should do it. That would match any line with a beginning which is not followed by a cat, right? 
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Re^4: Regex negative word
by GhodMode (Pilgrim) on Mar 30, 2006 at 15:48 UTC
    Incidentally, due to my only skimming the replies, I've wasted everyone's time. My apologies to GrandFather who gave the correct answer first. 
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