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

From: Paul Eggert
Subject: bug#62267: grep-3.9 bug: \d matches multibyte digits
Date: Sat, 18 Mar 2023 17:39:11 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0

Thanks for looking into this. A couple of questions.

First, some documentation issues. Why is PCRE2 incompatible with Perl on this issue? Are there other areas where the two are incompatible? Are these incompatibilities documented anywhere? Is the goal for 'grep -P' to be compatible with Perl, not with PCRE2?

Second, although that patch focuses on \d, doesn't \D have a similar problem and shouldn't it be fixed too?

(OK, that was more than two questions. :-)

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