On Mon, Feb 24, 2014 at 2:01 AM, Stephane Chazelas wrote: > Hello, > > Backreferences don't work with -w or -x in combination with -P: > > $ echo aa | grep -Pw '(.)\1' > $ > > Or they work in an unexpected way: > > $ echo aa | grep -Pw '(.)\2' > aa > > The fix is simple: > > > --- src/pcresearch.c~ 2014-02-24 09:59:56.864374362 +0000 > +++ src/pcresearch.c 2014-02-24 07:33:04.666398105 +0000 > @@ -75,9 +75,9 @@ Pcompile (char const *pattern, size_t si Thanks a lot for the patch. I've converted it to a proper commit with NEWS and a test case. Please ack the attached if it's all ok with you (you're still the "Author:"):