Re: regex search valid only if registers n and n+1 are equal?

Use backreferences, like this:

while (<DATA>) {
  print "match on $1\n" if /^\S+ (\d+) \S+ \1$/;
}
__DATA__
foo 1000 bar 1000
foo 1000 bar 500
[download]

--
David Serrano

Comment on Re: regex search valid only if registers n and n+1 are equal? Download Code

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Re^2: regex search valid only if registers n and n+1 are equal? by Voronich (Hermit) on Jun 30, 2006 at 20:17 UTC
yeesh. "backreference" is the word that unlocked the universe here. Thanks :) http://www.mpwilson.com/uccu/	[reply]