On Sat, Sep 3, 2022 at 14:50 RVP <r...@sdf.org> wrote: > On Sat, 3 Sep 2022, Martin Husemann wrote: > > > How about fixing the bsd version we have in tree instead? Maybe FreeBSD > or > > OpenBSD already did that and we can borrwo? > > > > There is also the home-grown agcre in othersrc which looks (mostly) > feature-complete...
Thanks for the very kind shoutout, but... agcre was not really meant to be a drop-in replacement for grep: - defaults to extended regexps - does most (sane/useful) perl extensions - does utf-8 searching and matching - is built around a vm style of matching, rather than a dfa, or aho corasick-style optimizations, so sacrifices performance for protection against sociopathic expressions - extends the api to do backwards searching (similar to memrchr in a byte string, where memchr does the forward searching) But certainly has none of the production-ready style of matching that would be necessary for a full grep replacement, to say nothing of atf tests (it has its own test suite, just not atf) Having said that, i use it as my own grep replacement, but I'm willing to take the risk, and fix it when/if i run into a "that's funny" moment Alistair
