Re^4: Code optomization

by sock (Monk)

on Jul 08, 2004 at 21:30 UTC ( [id://372960]=note: print w/replies, xml )

Need Help??

I'm sorry, I don't understand. Can you explain a bit more? ----

Guns don't kill people, ninjas do.

Comment on Re^4: Code optomization

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Re^5: Code optomization by sgifford (Prior) on Jul 09, 2004 at 04:46 UTC
The problem is that you're trying to do a pattern match against an undefined variable (if the regex doesn't match, or doesn't match enough, `$3` will be undefined). My solution drops out of the "loop" immediately in this case, so it never tries to do the pattern match. Roy Johnson's solution avoids entering the loop at all if `$3` is undefined.	[reply] [d/l] [select]

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