Re: [PATCH][TRY2] fix false multi-byte matches in some regular expressions

[Paul Eggert]

On 02/22/2012 12:39 PM, Roland McGrath wrote:
> Surely you can debug sed and discern
> the exact sequence of library calls it's making.

That should be doable, yes, but it might be a lot of work
and the patch is straightforward and appears correct.
For now I installed the patch into gnulib, here:

http://git.savannah.gnu.org/cgit/gnulib.git/commit/?id=1997177209382391a38d061f234fe04c74b863da

so that GNU applications on non-glibc platforms
will get the fix.

Stanislav, if you find a short and reproducible
test case, please cc: it to bug-gnulib so that I can
add it to the gnulib test cases too.

Also, if you figure out what's causing sed to loop,
that'd be even better: quite possibly it's another bug
in the regex code, one that we should squash.