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Re: Capture group in Regex.

by ww (Archbishop)
on May 04, 2013 at 11:32 UTC ( #1032029=note: print w/replies, xml ) Need Help??


in reply to Capture group in Regex.

"From what I understand, \1 matches any character except \n after ...."

Athanasius response is a good one, but, IMO, invites an alternate way to address a key element of your misconception. You can think of \1 and $1 as containers used to (temporarily) retain the matches found by the wildcards .

But \1 and $1 do NOT match anything, per se.

Explaining "temporarily is beyond the scope of this thread; just take care to assign the value in $1 (or any other of its ilk) to an ordinary, named variable (without $1's idiosyncrasies) as promptly as possible.


If you didn't program your executable by toggling in binary, it wasn't really programming!

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