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Re^2: Can't match negated words.by Roy Johnson (Monsignor) |
on Jun 24, 2004 at 15:24 UTC ( [id://369393]=note: print w/replies, xml ) | Need Help?? |
Putting dot-star next to an anchor is pointless. Just throw out the anchor and the dot-star. That leaves you with:
You've got capturing parentheses around non-capturing parentheses, around a negative lookbehind. You only need the parens for the negative lookbehind: Ok, now you've matched "/*", and at that point, you're looking back to ensure that what comes before you isn't "throw". It can't be, because it ends in "/*". You can't really check everything up to the "/*" with a negative lookbehind, because negative lookbehinds can't be variable-length, and your line can be. You can do it with negative lookahead: That will be any number of characters that isn't the start of "throw", followed by "/*". The *? makes it take the first "/*" rather than the last. Please see this node about YAPE::Regex::Explain for a helpful module. We're not really tightening our belts, it just feels that way because we're getting fatter.
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