[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [21.5] call-process-region problem
>>>>> In [emacs-w3m : No.06092]
>>>>> Hrvoje Niksic <email@example.com> wrote:
> Katsumi Yamaoka <firstname.lastname@example.org> writes:
>> Although it may be a known problem, I think it is evil that the
>> call-process-region function requires the point to have to be in
>> the beginning or the end position when the 4th arg DELETEP is t.
> It sounds like a bug.
>> It simply erases the buffer's contents when that requirement is
>> not satisfied.
> Why does that happen? The code looks like it's trying to correctly
> track deletions and insertions by using markers.
It is because call-process-region of that version uses
call-process which inserts the output of a process in the point.
And it deletes the region which is pointed to by markers, after
a process is finished. Markers function rightly. Therefore,
they will be erased if the output of a process is inserted
within limits which markers point to.
> It could be that your fix hides another bug, elsewhere in the code,
> but I could be mistaken. What do you think?
Probably, the problem is simple and lucid.
Katsumi Yamaoka <email@example.com>