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bug#62267: grep-3.9 bug: \d matches multibyte digits

From: Jim Meyering
Subject: bug#62267: grep-3.9 bug: \d matches multibyte digits
Date: Sun, 19 Mar 2023 09:54:49 -0700

On Sun, Mar 19, 2023 at 1:55 AM Paul Eggert <eggert@cs.ucla.edu> wrote:
> On 2023-03-19 01:28, Paul Eggert wrote:
> > Looking at the source code again, how about if we move the PCRE-specific
> > changes from src/grep.c to src/pcresearch.c which is where it really
> > belongs, and more importantly use the bleeding-edge
> > PCRE2_EXTRA_ASCII_BSD macro if available?
> >
> > Something like the attached patch, say. This patch doesn't take your \D
> > fixes (or the above suggestions) into account.
> Oops, that patch assumed match_lines. Also, it covered two topics in the
> doc fix. I installed the obvious topic in the doc change, and removed
> the match_lines assumption. Revised patch attached; please ignore the
> patch of a half-hour ago.

Thanks. It definitely belongs in pcresearch.c.
You're welcome to push that (or I will soon).
I've rebased my changes on top of it and am adding tests.

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