On Mon, Feb 24, 2014 at 1:20 PM, Stephane Chazelas <stephane.chaze...@gmail.com> wrote: > A last note: with -w, pcregrep wraps the regexp in \b...\b > instead of \b(?:...)\b, so it could be that those brackets are > not necessary in the first place. > > Sorry I lied, it was not the last note ;-). Note the difference: > > $ echo a@@b | grep -w @@ > $ echo a@@b | grep -Pw @@ > a@@b > > > Maybe instead of \b(?:...)\b, we could use (?<!\w)...(?!\w) > > $ echo a%%b | grep -P '(?<!\w)%%(?!\w)' > $ echo %aa% | grep -P '(?<!\w)aa(?!\w)' > %aa%
I like both suggestions. Making -wP work like grep's -w makes perfect sense. Care to prepare a patch to make it do that, with a separate test case? "git format-patch ..." output preferred, if you're game. I pushed the above patch, but would welcome another one.
