Christian Brabandt wrote:
> On Do, 16 Jun 2016, fritzophrenic wrote:
>
> > > Can you please set verbose before searching?
> >
> > I did "gvim -N -u NONE -i NONE" then ":set verbose=15". Searching for
> > "\%(|\u.*\)\@<=[^|\t]\+$" in a long line with no uppercase characters still
> > matches, and I get no messages at all.
> >
> > > I wonder if this happens, because the NFA engine stops because it returns
> > > NFA_TOO_EXPENSIVE and then the retry with the old engine is somehow
> > > confused?
> >
> > I don't think so (and I guess I proved it with the verbose setting, unless
> > I did that wrong), because I can force the new engine with \%#=2 or by
> > setting 'regexpengine', and the pattern works as expected.
>
> Okay, I checked the problem. My suspicion was correct, that patch
> 7.4.494 causes this problem, because after recursive_regmatch() returns
> NFA_TOO_EXPENSIVE nfa_listid will be restored from save_nfa_listid and
> then the exit condition in nfa_regmatch does not match anymore.
>
> Attached is a patch, including a test.
> (attachment won't be visible in github, see the thread
> https://groups.google.com/d/msg/vim_dev/BE0ISqcD3aI/ZGeOMrFQJgAJ for the
> patch)
Glad you could locate and fix it!
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