Re: Bug in NetBSD grep ?

[RVP <rvp%SDF.ORG@localhost>]

On Tue, 16 Aug 2022, RVP wrote:

> On Tue, 16 Aug 2022, Marc Baudoin wrote:
>
> > The following command-line:
> >
> > echo 00:00: | grep -E '^([0]{2}[:-]){2}$'
> >
> > doesn't print anything on NetBSD (9.3) but it prints 00:00: back
> > (as it should, unless I made a mistake in my regular expression):
> > - on NetBSD with GNU grep from pkgsrc
> > - on FreeBSD with their standard grep (which claims to be
> >  GNU-compatible)
> > - on Linux (with GNU grep)
> >
> > Is there a problem with the grep command shipped with NetBSD?
>
> Looks like a bug. It works if you force a C locale:

Fixed in GNU grep-2.6:

$ /tmp/g2/bin/grep --version
GNU grep 2.6

Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.

$ echo 00:00: | /tmp/g2/bin/grep -E '^([0]{2}[:-]){2}$'
00:00:
$ /tmp/g1/bin/grep --version
grep (GNU grep) 2.5.1

Copyright 1988, 1992-1999, 2000, 2001 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR 
PURPOSE.

$ echo 00:00: | /tmp/g1/bin/grep -E '^([0]{2}[:-]){2}$'
$ 		# nada

-RVP