bug#38223: grep >=2.28 cannot handle -wF correctly under LANG=ja_JP.eucjp

[Norihiro Tanaka]

On Sat, 16 Nov 2019 11:00:38 -0800
Jim Meyering <address@hidden> wrote:

> I've pushed the complete fix here:
> https://git.savannah.gnu.org/cgit/grep.git/commit/?id=090a4dbe03951e427f03f83be424caacc3303799
> 
> I've also fixed the comment and a variable name and updated gnulib to latest.

After patched, I found extreamly slowdown.

  yes $(printf %040d 0) | head -1000000 >k
  time -p env LC_ALL=ja_JP.eucjp src/grep -F -w 0 k

First patch fixes it, and second improves performance more.

0001-grep-fix-performance-degration-with-previous-patch.patch
Description: Text document

0002-grep-performance-improvement-for-grep-F-w-in-non-UTF.patch
Description: Text document