Re: call-process and incremental display of output

[John Shahid <jvshahid@gmail.com>]

FYI, I have been using this patch without any noticeable issues.  Not
sure if we should merge it.

Stefan Monnier <monnier@IRO.UMontreal.CA> writes:

>> Sounds good.  I'll make the change locally and test it for a month or
>> two and report back.
>
> FWIW, I'm running with the following change now:
>
>     diff --git a/src/editfns.c b/src/editfns.c
>     index e995b38a44..db95a8a20a 100644
>     --- a/src/editfns.c
>     +++ b/src/editfns.c
>     @@ -782,6 +782,12 @@ save_excursion_save (union specbinding *pdl)
>      {
>        eassert (pdl->unwind_excursion.kind == SPECPDL_UNWIND_EXCURSION);
>        pdl->unwind_excursion.marker = Fpoint_marker ();
>     +  /* Suggested by John Shahid <jvshahid@gmail.com> in the "call-process and
>     +   * incremental display of output" thread of help-gnu-emacs.
>     +   * This matches the manually-created behavior of compile.el's process filter
>     +   * and probably others like comint as well.  */
>     +  XMARKER (pdl->unwind_excursion.marker)->insertion_type
>     +    = !NILP (Vwindow_point_insertion_type);
>        /* Selected window if current buffer is shown in it, nil otherwise.  */
>        pdl->unwind_excursion.window
>          = (EQ (XWINDOW (selected_window)->contents, Fcurrent_buffer ())
>
> I haven't double checked that it does what I think it does, to be
> honest, but at least after a mere 48h of normal use I haven't noticed
> anything weird yet.
>
>
>         Stefan