Bug 324781 - grep -P behaves different to perl or pcregrep
grep -P behaves different to perl or pcregrep
Product: Fedora
Classification: Fedora
Component: grep (Show other bugs)
All Linux
low Severity low
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Assigned To: Stepan Kasal
Fedora Extras Quality Assurance
Depends On:
  Show dependency treegraph
Reported: 2007-10-09 08:22 EDT by Alexander Boström
Modified: 2008-10-01 12:57 EDT (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2008-10-01 12:57:29 EDT
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
Handle line wrapping in PCRE regexps correctly (3.12 KB, text/plain)
2008-10-01 11:02 EDT, Lubomir Rintel
no flags Details

  None (edit)
Description Alexander Boström 2007-10-09 08:22:22 EDT
Description of problem:
grep -P behaves different to perl or pcregrep, probably wrong.

Version-Release number of selected component (if applicable):
grep-2.5.1-57.fc7 (also on RHEL5)

How reproducible:

Steps to Reproduce:

$ grep -P '[^aeiou][^aeiou][^aeiou][^aeiou]' /usr/share/dict/words |wc -l

$ pcregrep '[^aeiou][^aeiou][^aeiou][^aeiou]' /usr/share/dict/words |wc -l

$ perl -lne 'print if /[^aeiou][^aeiou][^aeiou][^aeiou]/' /usr/share/dict/words
|wc -l
Actual results:
Above commands have different output.

Expected results:
All above commands should have the same output.
Comment 1 Bug Zapper 2008-05-14 10:41:07 EDT
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Comment 2 Alexander Boström 2008-06-16 07:27:53 EDT
I looks like this is reproducible on a fully up to date Fedora 9 machine.
Comment 3 Lubomir Rintel 2008-10-01 11:02:48 EDT
Created attachment 318207 [details]
Handle line wrapping  in PCRE regexps correctly

This patch fixed the issue for me.
Comment 4 Lubomir Rintel 2008-10-01 12:57:29 EDT
Fixed in grep-2_5_1a-61_fc10

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