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Re: [PATCH 00/12] Hard coded string length cleanup

From
Duy Nguyen <pclouds@gmail.com>
Date
Dec 19, 2013, 23:50 UTC
Message-ID
<CACsJy8Bb4+V1DEdEmRwj10Oozi8U430ZHDCj_UhnXZcaR-wQ=g@mail.gmail.com>
In-Reply-To
<52B38213.2070702@web.de>
On Fri, Dec 20, 2013 at 6:32 AM, René Scharfe <l.s.r@web.de> wrote:
Show 5 quoted lines
> Seeing that skip_prefix_defval is mostly used in the form
> skip_prefix_defval(foo, prefix, foo) I wonder if it makes sense to
> first change skip_prefix to return the full string instead of NULL
> if the prefix is not matched.  Would the resulting function cover
> most use cases?  And would it still be easily usable?

That was skip_prefix_gently() that I forgot to replace in a commit message, before I turned it into _defval variant. The reason for _defval is it could be use to chain expression together without adding temporary variables, e.g.

-       if (starts_with(line->buf, ">From") && isspace(line->buf[5])) {
+       if (isspace(*skip_prefix_defval(line->buf, ">From", "NOSPACE"))) {

Without _defval, one would need to do if ((p = skip_prefix(..)) && isspace(*p)). I'm not entirely sure this is a good thing though as it could make it a bit harder to read.

-- 
Duy
Previous: René ScharfeNext: René Scharfe
Message 28 of 31 in “Hard coded string length cleanup”
  1. 00/12 Hard coded string length cleanupNguyễn Thái Ngọc Duy, Dec 18, 2013
  2. 01/12 Make starts_with() a wrapper of skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  3. Junio C HamanoDec 18, 2013
  4. Junio C HamanoDec 18, 2013
  5. 02/12 Convert starts_with() to skip_prefix() for option parsingNguyễn Thái Ngọc Duy, Dec 18, 2013
  6. Johannes SixtDec 20, 2013
  7. Jeff KingDec 20, 2013
  8. Christian CouderDec 20, 2013
  9. René ScharfeDec 20, 2013
  10. Junio C HamanoDec 20, 2013
  11. Duy NguyenDec 21, 2013
  12. Junio C HamanoDec 26, 2013
  13. Jeff KingDec 28, 2013
  14. 03/12 Add and use skip_prefix_defval()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  15. Kent R. SpillnerDec 18, 2013
  16. Junio C HamanoDec 18, 2013
  17. 04/12 Replace some use of starts_with() with skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  18. 05/12 Convert a lot of starts_with() to skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  19. 06/12 fetch.c: replace some use of starts_with() with skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  20. 07/12 connect.c: replace some use of starts_with() with skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  21. 08/12 refs.c: replace some use of starts_with() with skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  22. 09/12 diff.c: reduce code duplication in --stat-xxx parsingNguyễn Thái Ngọc Duy, Dec 18, 2013
  23. 10/12 environment.c: replace starts_with() in strip_namespace() with skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  24. 11/12 diff.c: convert diff_scoreopt_parse to use skip_prefix()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  25. 12/12 refs.c: use skip_prefix() in prune_ref()Nguyễn Thái Ngọc Duy, Dec 18, 2013
  26. Junio C HamanoDec 18, 2013
  27. René ScharfeDec 19, 2013
  28. Duy NguyenDec 19, 2013
  29. René ScharfeDec 20, 2013
  30. Duy NguyenDec 20, 2013
  31. Junio C HamanoDec 20, 2013

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