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

From: Dave Reisner
Subject: bug#15758: grep 2.15 calls abort() on larger searches with -P
Date: Mon, 4 Nov 2013 14:38:40 -0500
User-agent: Mutt/1.5.21 (2010-09-15)

On Sat, Nov 02, 2013 at 04:05:52PM -0700, Jim Meyering wrote:
> On Thu, Oct 31, 2013 at 8:26 AM, Jim Meyering <address@hidden> wrote:
> ...
> > With this and the nit about --version output being wrong, I now have
> > two reasons to make a new release.
> Thanks again for the report, Dave.
> Here's the fix I expect to push:

Thanks Jim.

Apologies for not responding to this sooner. I tested your patch and can
confirm that the behavior is better, but the new behavior still seems
like a regression. Take, for example, the simple instance of grep'ing
grep's own git repo.

# with grep 2.14
$ grep -rPw GNULIB
gnulib/m4/bison.m4:dnl Declaring YACC & YFLAGS precious will not be necessary 
after GNULIB
gnulib/lib/glob.c:   HAVE_STRUCT_DIRENT_D_TYPE plays the same role in GNULIB.  
gnulib/lib/netdb.in.h:   GNULIB getaddrinfo() replacement, so are not yet 
gnulib/lib/argp.h:/* GNULIB makes sure both program_invocation_name and

# with grep built from HEAD
$ ./src/grep -rPw GNULIB
./src/grep: invalid UTF-8 byte sequence in input

I would expect that the invalid UTF-8 wouldn't stop grep cold, but
continue on, ignoring the non-matching data, just as grep without the -P
flag does.


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