On 2023-04-05 12:40, Jim Meyering wrote:
(C) preserve grep -P's tradition of \d matching only 0..9, and once grep uses 10.43 or newer, \b and \w will also work as desired.
If I understand you correctly, (C) would mean that GNU grep -P, git grep -P, and pcre2grep -u would all use PCRE2_UTF | PCRE2_UCP, and would also use the extra option PCRE2_EXTRA_ASCII_BSD that is planned for 10.43 PCRE2.
This would require changes to bleeding-edge pcre2grep -u (since it would need to add PCRE2_EXTRA_ASCII_BSD unless --no-ucp is also given), and to git grep -P (which would need to add PCRE2_UCP and PCRE2_EXTRA_ASCII_BSD, when libpcre2 is new enough to #define PCRE2_EXTRA_ASCII_BSD).
This option works for me as well. In fact it's the least work for me since I already implemented it in bleeding-edge GNU grep (so it works this way already :-).