bug#15758: grep 2.15 calls abort() on larger searches with -P

[Jim Meyering]

On Fri, Dec 13, 2013 at 10:33 AM, Jim Meyering <address@hidden> wrote:
...
> Thanks for the suggested patches and report.  Your first patch is
> almost right.  The problem is that we cannot remove the PCRE_UTF8 flag.
> If we did that, it would disable UTF-8, reverting an older fix.
> See tests/pcre-utf8 for examples, or run this:
>
>   printf '\342\202\254\n' | LC_ALL=en_US.UTF-8 src/grep -P '^\p{S}'
>
> I've added a commit log, improved a related test and attached
> a slightly different patch, but left you as the "Author".
> I'll wait for an explicit ACK before pushing it.
>
> With that, there is no need to handle PCRE_ERROR_BADUTF8
> because that should not happen.

Patch attached, this time.
Thanks to Eric Blake for the quick off-list prod :-)

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