SEGV upon deleting multiple bottom lines in vi

[mike b]

Ah, yes, I didn't think about that scenario. Will definitely take your
patch for a spin and test it out. Thanks for your feedback!

pt., 30 lis 2018 o 18:39 Ron Yorston <rmy at pobox.com> napisał(a):

> Michał Berger wrote:
> >However, I haven't been able to determine if there are any side effects
> >of applying it yet (or even fully understan why that length-- happens
> >there at all), so take it with a grain of salt (it's not a proper fix
> >for sure). :D
>
> One side effect of the patch is that if you delete the only line in a
> file and then undo the deletion an extra line is added.  That's why the
> length was being decremented.  However, as the comment says, it should
> only be decremented if the text buffer becomes empty.  The test for
> this condition is wrong.
>
> A different (and possibly better) patch follows.
>
> Ron
>
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