[Bug 1008584] Re: perl's s2p(1) produces non-equivalent perl for simple sed substitution

Ralph Corderoy ralph at inputplus.co.uk
Sat Oct 6 12:43:28 UTC 2012


It should be trivial for anyone who knows regexps to "confirm" this bug
so it gets some TLC.  Go on, be a karma whore!

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Title:
  perl's s2p(1) produces non-equivalent perl for simple sed substitution

Status in “perl” package in Ubuntu:
  New

Bug description:
  Compare

      $ sed 's/c*$/x/g' <<<abc
      abx
      $ s2p 's/c*$/x/g' | perl - <(echo abc)
      abxx
      $

  sed's behaviour is correct for sed.  The Perl that s2p(1) produces 
  doesn't do the equivalent substitution, instead matching zero c's and 
  the end of the string after the first substitution of c by x.

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