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Re: [PATCH/RFC 0/4] grep: support to match by line number

From
Jakub Narebski <jnareb@gmail.com>
Date
May 2, 2011, 17:11 UTC
Message-ID
<m31v0hvxi3.fsf@localhost.localdomain>
In-Reply-To
<7vfwoxoy5c.fsf@alter.siamese.dyndns.org>
Junio C Hamano <gitster@pobox.com> writes:
Show 9 quoted lines
> I am personally not thrilled by what this series attempts to do, but first
> a few questions:
> 
>  - Are there existing non-git "grep" implementations that do this?
> 
>  - If yes:
>    - what command option letter do they use to specify line number?
>    - do they not support a range notation (e.g. -@ 25-30,32-40)?
>    - what do they do when given more than one file?

I'm not sure if it is exactly the same as '-@' in Bert proposal, but "ack", grep-like text finder in Perl (http://betterthangrep.com or http://p3rl.org/ack), includes the following command line option:

  --line=NUM
    Only print line NUM of each file. Multiple lines can be given with
    multiple --line options or as a comma separated list
    (--line=3,5,7). --line=4-7 also works. The lines are always output in
    ascending order, no matter the order given on the command line.
-- 
Jakub Narebski
Poland
ShadeHawk on #git
Previous: Junio C HamanoNext: Bert Wesarg
Message 19 of 22 in “grep: support to match by line number”
  1. 0/4 grep: support to match by line numberBert Wesarg, May 2, 2011
  2. 1/4 grep: prepare for re-using the space of the regexp member in struct grep_patBert Wesarg, May 2, 2011
  3. 2/4 grep: pass current line number down to match_one_patternBert Wesarg, May 2, 2011
  4. 3/4 grep: introduce pattern which matches at line numberBert Wesarg, May 2, 2011
  5. 4/4 grep: provide option to match line numberBert Wesarg, May 2, 2011
  6. Thiago FarinaMay 2, 2011
  7. Bert WesargMay 2, 2011
  8. Thiago FarinaMay 2, 2011
  9. Bert WesargMay 2, 2011
  10. Junio C HamanoMay 2, 2011
  11. Thiago FarinaMay 2, 2011
  12. Bert WesargMay 2, 2011
  13. Sverre RabbelierMay 2, 2011
  14. Bert WesargMay 2, 2011
  15. Junio C HamanoMay 2, 2011
  16. Bert WesargMay 2, 2011
  17. Junio C HamanoMay 2, 2011
  18. Junio C HamanoMay 2, 2011
  19. Jakub NarebskiMay 2, 2011
  20. Bert WesargMay 2, 2011
  21. Junio C HamanoMay 2, 2011
  22. Bert WesargMay 2, 2011

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