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Re^2: How do I avoid double substitution when replacing many patterns?

by bart (Canon)
on Jan 21, 2007 at 07:51 UTC ( #595736=note: print w/replies, xml ) Need Help??


in reply to Re: How do I avoid double substitution when replacing many patterns?
in thread How do I avoid double substitution when replacing many patterns?

Replace $1 ||$2 with $+. That'll contain the value of the last capture that actually matched. See perlvar:
The text matched by the last bracket of the last successful search pattern. This is useful if you don't know which one of a set of alternative patterns matched.

p.s. Originally I mistakingly had posted this as a followup to Re^2: How do I avoid double substitution when replacing many patterns?, now its sibling.

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Re^3: How do I avoid double substitution when replacing many patterns?
by diotalevi (Canon) on Jan 21, 2007 at 20:14 UTC

    PS, I didn't know about $+ so I'm glad you posted that in the wrong place.

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