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List:       busybox
Subject:    Re: Grep corrupt in BusyBox 1.15.2
From:       Göran_Hillebrink <goran.hillebrink () transmode ! com>
Date:       2009-12-04 8:17:18
Message-ID: OFDF5E589D.A2BE2210-ONC1257682.002D77C7-C1257682.002D8796 () transmode ! se
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Yes it works now in 1.15.2.

Thanks.,
Goran


                                                                                      \
  From:       Denys Vlasenko <vda.linux@googlemail.com>                               \
                
                                                                                      \
  To:         busybox@busybox.net                                                     \
                
                                                                                      \
  Date:       2009-12-04 02:47                                                        \
                
                                                                                      \
  Subject:    Re: Grep corrupt in BusyBox 1.15.2                                      \
                
                                                                                      \
  Sent by:    busybox-bounces@busybox.net                                             \
                
                                                                                      \






On Thursday 03 December 2009 19:35, Cristian Ionescu-Idbohrn wrote:
> On Thu, 3 Dec 2009, Göran Hillebrink wrote:
> 
> > If I run the command:
> > 
> > echo "/var/test" | grep -o '[^/]*$'
> > 
> > I should get the result test but grep ends up in a forever loop.
> 
> Right.
> I see the same thing with BusyBox v1.16.0.git.

Try attached patch.





> Funny though.  I was not aware grep did 'sed' job too (edit the result).
> I see GNU grep 2.5.1, 2.5.3 and 2.5.4 do the same thing.  Man page says:
> 
> ,----
> > DESCRIPTION
> > 		 grep searches the named input FILEs (or standard input if no
> > 		 files are named, or the file name - is given) for lines containing
> > 		 a match to the given PATTERN.  By default, grep prints the
> > 		 		 		 		        ^^^^^^^^^^^^^^^^^^^^^^^^^^^
> > 		 matching lines.
> > 		 ^^^^^^^^^^^^^^
> `----
> 
> and:
> 
> ,----
> > 		 -o, --only-matching
> > 		     Show only the part of a matching line that matches PATTERN.
> `----
> 
> seems to contradict that.  Weird...  Bug?

If you use "-o", "by default" wording no longer apply.
--
vda
[attachment "7.patch" deleted by Göran Hillebrink/Transmode] \
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