Ingo Karkat wrote:
> Hello Vim developers,
>
> there's another discrepancy between the regular expression engines:
>
> for n in [1,2] | echo matchlist("foo", '\%#=' . n .
> '^\(.*\%<3v\)\(o\)')[1:2] | endfor
> for n in [1,2] | echo matchlist("foo", '\%#=' . n .
> '^\(.*\%<3v\)\(.*\)')[1:2] | endfor
>
> This affects matching with \%<v (also with \%<c) when it is followed by
> a .* expression.
>
> To reproduce, use above scriptlet or the identical attached script:
>
> vim -N -u NONE -S bad-re4.vim
> ['f', 'o']
> ['f', 'o']
> ['f', 'oo']
> ['', 'foo'] " <- Wrong result with re=2 and following .* pattern
>
> This is with a huge build of Vim 7.4.267, running in an Ubuntu 13.04 x64
> VM, and with a self-compiled Windows/x64 build.
Thanks for the reproducible example. I'll have to dig into these NFA
problems some day, it appears nobody else is fixing these problems.
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