Re^2: Determing whether a regexp has capturing matches

in reply to Re: Determing whether a regexp has capturing matches
in thread Determing whether a regexp has capturing matches

$1 will be set to undef after a match with no parentheses.

Is this documented behaviour? I could have sworn I'd used a perl at some point where $1 persisted unless you made another captured match. I could, of course, be making shit up :-)

Comment on Re^2: Determing whether a regexp has capturing matches

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Re^3: Determing whether a regexp has capturing matches by Limbic~Region (Chancellor) on Feb 27, 2007 at 17:15 UTC
adrianh, See Zen and the Art of Match Variables. In a nutshell, match variables are weird. Cheers - L~R	[reply]

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