On Sunday, December 22, 2013 2:53:38 PM UTC-6, coot_. wrote:
> On 05:52 Sat 21 Dec     , Brett Stahlman wrote:
> 
> > Possible bugs in new regex engine involving \@> and \?
> 
> > 
> 
> > Using the following line of text...
> 
> > 0123456789 
> 
> > 
> 
> > ...run the following two :substitute commands with both old and new regex 
> > engine, and notice the differences...
> 
> > 
> 
> > s/\(01\)\(23\)\@>\(.*\)/--\1--\2--\3/
> 
> >     Old (\%=1)
> 
> >             --01--23--456789 
> 
> >     New (\%=2)
> 
> >             ----23--456789 
> 
> > 
> 
> > s/\(01\)\(23\d\@=\)\?\(.*\)/--\1--\2--\3/
> 
> >     Old (\%=1)
> 
> >             --01--23--456789 
> 
> >     New (\%=2)
> 
> >             --01----23456789 
> 
> > 
> 
> > Note: The \d\@= in the second example could be replaced with other matching 
> > zero-width assertions (e.g., \%v) without changing the results.
> 
> > 
> 
> > Brett S.
> 
> 
> 
> Hi,
> 
> 
> 
> Which version of vim are you using.  I cannot reproduce here (Vim
> 
> 7.4.126, GNU/Linux) the first one, but I can reproduce the second one.

VIM - Vi IMproved 7.4 (2013 Aug 10, compiled Aug 10 2013 14:38:33)
MS-Windows 32-bit GUI version with OLE support
Compiled by mool@tororo
Big version with GUI.  Features included (+) or not (-):

Brett S.
> 
> 
> 
> Best regards,
> 
> Marcin

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