From: Alan Mackenzie <acm@muc.de>
To: martin rudalics <rudalics@gmx.at>
Cc: Markus Triska <triska@metalevel.at>, 34038@debbugs.gnu.org
Subject: bug#34038: 26.1; set-window-start sometimes fails to set window start
Date: Sat, 12 Jan 2019 18:22:03 +0000 [thread overview]
Message-ID: <20190112182203.GA8370@ACM> (raw)
In-Reply-To: <5C39A193.4040108@gmx.at>
Hello, Martin.
On Sat, Jan 12, 2019 at 09:13:07 +0100, martin rudalics wrote:
> > A bit of debugging output shows that after (erase-buffer), window-start
> > is already at 1, not the former point-max.
> 'window-start' returns the position of the window start marker. When
> you erase a buffer _all_ its markers go to point-min - point-max and
> all window start or point markers included.
Of course! I don't know what I was thinking at the time. Markers
behave like markers, and w->start in struct window is just an ordinary
marker. Sorry for writing rubbish.
> > After (insert b),
> > window-start continues to be at 1.
> Because the insertion type of a window start marker is nil. You can
> use 'insert-before-markers' to override that.
Yes. The question remains, what is causing the unexpected scrolling in
the OP's scenario?
> martin
--
Alan Mackenzie (Nuremberg, Germany).
next prev parent reply other threads:[~2019-01-12 18:22 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-10 19:57 bug#34038: 26.1; set-window-start sometimes fails to set window start Markus Triska
2019-01-11 7:03 ` Eli Zaretskii
2019-01-11 12:20 ` Markus Triska
2019-01-11 13:36 ` Eli Zaretskii
2019-01-11 14:31 ` Markus Triska
2019-01-11 15:10 ` martin rudalics
2019-01-11 17:45 ` Markus Triska
2019-01-11 19:07 ` Eli Zaretskii
2019-01-12 8:12 ` martin rudalics
2019-01-12 13:25 ` Markus Triska
2019-01-12 13:53 ` Eli Zaretskii
2019-01-12 14:12 ` martin rudalics
2019-01-12 19:08 ` Markus Triska
2019-01-12 20:28 ` Eli Zaretskii
2019-01-11 21:23 ` Alan Mackenzie
2019-01-12 8:13 ` martin rudalics
2019-01-12 18:22 ` Alan Mackenzie [this message]
2019-01-12 20:29 ` Eli Zaretskii
2019-01-12 20:42 ` Alan Mackenzie
2019-01-13 3:30 ` Eli Zaretskii
2019-01-13 7:32 ` Markus Triska
2019-01-13 8:40 ` martin rudalics
2019-01-13 11:32 ` Eli Zaretskii
2019-01-13 13:40 ` martin rudalics
2019-01-13 15:21 ` Eli Zaretskii
2019-03-24 10:35 ` Markus Triska
2019-03-24 17:28 ` Eli Zaretskii
2019-03-24 19:56 ` Markus Triska
2019-03-28 16:21 ` Eli Zaretskii
2019-03-29 7:16 ` Markus Triska
2019-03-29 8:29 ` Eli Zaretskii
2019-04-06 8:23 ` Eli Zaretskii
[not found] <<m2ftu05lqv.fsf@metalevel.at>
[not found] ` <<83sgxzhe04.fsf@gnu.org>
2019-01-11 16:37 ` Drew Adams
2019-01-11 16:49 ` Eli Zaretskii
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