Ævar Arnfjörð Bjarmason <avarab@xxxxxxxxx> writes: > Follow-up b65abcafc7a (grep: use PCRE v2 for optimized fixed-string > search, 2019-07-01) and remove the use of kwset in the pickaxe code > for fixed-string search, in favor of optimistically using PCRE v2. > > This does mean that the semantics of the -G option subtly change, > before it's an ERE, whereas now it'll be a PCRE if we're compiled with > PCRE. Since PCRE is almost entirely a strict superset of ERE syntax I > think this is OK. Since Git is no longer a tool shared among 100 developers who are at least acquaintances, there will be people who are bothered by the differences, and such a change deserves a backward-compatibility warning in the release notes, at least. Recently, I discovered that I've been building my personal copy of Git without LIBPCRE support at all for a long time. It is possible I've never built with LIBPCRE. This series may give me incentive to start using "git grep -P" ;-) Thanks.
