in reply to In substituation regex, how to differentiate \1 from surrounding text

On the replacement side, that isn't a regex, that's a double-quoted string, and you should be using $1 instead of \1. So, in this case, a simple ${1} will work.

-- Randal L. Schwartz, Perl hacker
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Re^2: In substituation regex, how to differentiate \1 from surrounding text
by Roy Johnson (Monsignor) on May 19, 2004 at 21:30 UTC
    And on the pattern side, you can put it in non-capturing parentheses.
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