Re: [PATCH v13 3/3] grep/pcre2: fix an edge case concerning ascii patterns and UTF-8 data

From: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Date: Nov 15, 2021, 22:41 UTC
Message-ID: <211115.86fsrxqbvp.gmgdl@evledraar.gmail.com>
In-Reply-To: <877dd9i1zj.fsf@igel.home>

On Mon, Nov 15 2021, Andreas Schwab wrote:

> This breaks 'PCRE v2: grep ASCII from invalid UTF-8 data'.

What PCREv2 version are you using? I wonder if it's got to do with the 10.36 boundary, as noted in 95ca1f987ed (grep/pcre2: better support invalid UTF-8 haystacks, 2021-01-24). One of the two tests matching your description tests for that bug.

I can't remember much of the details of the bug, and it seems PCREv2's bug tracker went private, or at least I can't view https://bugs.exim.org/show_bug.cgi?id=2642 anymore.

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