bug#16421: Speed-up for case-insensitive matching in multibyte locales

[Jim Meyering]

On Mon, Jan 13, 2014 at 8:43 AM, Jim Meyering <address@hidden> wrote:
> Thank you for the patch.  I will take a look in the next day or two.

Sorry about the delay.
I have divided your patch into two separate commits: one modifies
dfa.c and the other modifies dfasearch.c.  I've included 5 commits
below.  The first two are those.  The next one is "also remove call to
mb_case_map_apply", which I will merge into your dfasearch.c commit.
I left it separate solely to ease review.  The fourth one adds a
little more test coverage, and will also be merged into your
dfasearch.c commit.  The 5th one is incidental, and just happened to
be on this branch.  Please inspect the modified comments and commit
log messages on your two commits and let me know if you would like to
make any changes before I push.

Thanks again,
Jim

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