GNU bug report logs - #16232
[PATCH] grep: make --ignore-case (-i) faster (sometimes 10x) in multibyte locales

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Package: grep;

Reported by: Jim Meyering <jim <at> meyering.net>

Date: Mon, 23 Dec 2013 22:40:02 UTC

Severity: normal

Tags: patch

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Jim Meyering <jim <at> meyering.net>
To: bug-grep <at> gnu.org
Subject: [PATCH] grep: make --ignore-case (-i) faster (sometimes 10x) in
 multibyte locales
Date: Mon, 23 Dec 2013 14:39:14 -0800

[Message part 1 (text/plain, inline)]
FYI, here is a quick and clean/safe performance improvement for grep -i.
I expect to push this commit right after the upcoming bug-fix release.
Currently, this optimization is enabled when the search string is
ASCII and contains neither of '\' (backslash) nor '['.  I expect to
eliminate the latter two constraints in a follow-on commit including
tests to exercise all of the corner cases.

Happy holidays,
Jim

[k.txt (text/plain, attachment)]
This bug report was last modified 11 years and 82 days ago.

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