* bug#8307: Scrolling problems in lexbind-new branch
@ 2011-03-21 3:04 Juanma Barranquero
2011-03-21 17:31 ` Stefan Monnier
0 siblings, 1 reply; 10+ messages in thread
From: Juanma Barranquero @ 2011-03-21 3:04 UTC (permalink / raw)
To: 8307
Version: 24.0.50
Package: emacs
I can reproduce this at will on lexbind-new, and not at all on trunk.
Assume you have a test file, test.txt, with many non-empty lines.
That's not really required (it could be any file long enough to cause
scrolling), but makes the bug easier to see.
In case it matters, I'm using DejaVu Sans Mono:
uniscribe:-outline-DejaVu Sans
Mono-normal-normal-normal-mono-13-*-*-*-c-*-iso8859-1
Now do:
emacs -Q --eval "(progn (setq scroll-conservatively 1)
(setq-default show-trailing-whitespace t))" test.txt
<right>
<down> ;;; keep it pressed until it starts line-by-line scrolling
(The value of scroll-conservatively is irrelevant, as long as it is
greater than zero.)
What I see is that the cursor stops in the next-to-last line;
scrolling continues normally, but the cursor does not advance to the
last line. (In fact, if you keep it pressed down enough time, it
eventually moves to the last line, but in my setup that can take
several hundred lines.)
Now, with the cursor on the next-to-last line, move it to column 0, so
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ; # is the cursor position
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ; last line of the window,
line number N
Now <down> moves the cursor to the last line:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ; last line of the window,
line number N
And then <right> moves to the right *and* scrolls the window:
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
x#xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ; line number N
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx ; last line of the window
Another, likely related effect:
emacs -Q --eval "(setq-default show-trailing-whitespace t)" test.txt
then keep <down> pressed.
Instead of scrolling to the last line of the window and then
recentering, it starts scrolling line-by-line once the cursor reaches
the middle point of the window height.
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-21 3:04 bug#8307: Scrolling problems in lexbind-new branch Juanma Barranquero
@ 2011-03-21 17:31 ` Stefan Monnier
2011-03-21 23:41 ` Juanma Barranquero
0 siblings, 1 reply; 10+ messages in thread
From: Stefan Monnier @ 2011-03-21 17:31 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: 8307
> emacs -Q --eval "(progn (setq scroll-conservatively 1)
> (setq-default show-trailing-whitespace t))" test.txt
> <right>
> <down> ;;; keep it pressed until it starts line-by-line scrolling
> (The value of scroll-conservatively is irrelevant, as long as it is
> greater than zero.)
> What I see is that the cursor stops in the next-to-last line;
> scrolling continues normally, but the cursor does not advance to the
> last line. (In fact, if you keep it pressed down enough time, it
> eventually moves to the last line, but in my setup that can take
> several hundred lines.)
I cannot reproduce it here. Maybe it's because I updated the lexbind
branch to be in sync with the trunk. Can you try it with the latest
lexbind branch?
Stefan
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-21 17:31 ` Stefan Monnier
@ 2011-03-21 23:41 ` Juanma Barranquero
2011-03-22 19:15 ` Eli Zaretskii
0 siblings, 1 reply; 10+ messages in thread
From: Juanma Barranquero @ 2011-03-21 23:41 UTC (permalink / raw)
To: Stefan Monnier; +Cc: 8307-done
On Mon, Mar 21, 2011 at 18:31, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
> Maybe it's because I updated the lexbind
> branch to be in sync with the trunk. Can you try it with the latest
> lexbind branch?
I cannot reproduce the bug with the latest lexbind-new, so I'm closing this bug.
Juanma
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-21 23:41 ` Juanma Barranquero
@ 2011-03-22 19:15 ` Eli Zaretskii
2011-03-22 19:48 ` Juanma Barranquero
2011-03-25 23:39 ` Juanma Barranquero
0 siblings, 2 replies; 10+ messages in thread
From: Eli Zaretskii @ 2011-03-22 19:15 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: lekktu, 8307
> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Tue, 22 Mar 2011 00:41:01 +0100
> Cc: 8307-done@debbugs.gnu.org
>
> On Mon, Mar 21, 2011 at 18:31, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>
> > Maybe it's because I updated the lexbind
> > branch to be in sync with the trunk. Can you try it with the latest
> > lexbind branch?
>
> I cannot reproduce the bug with the latest lexbind-new, so I'm closing this bug.
Thanks. But the original one with the infloop is still present, if
you remove the change I asked you to apply, yes?
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-22 19:15 ` Eli Zaretskii
@ 2011-03-22 19:48 ` Juanma Barranquero
2011-03-22 19:59 ` Eli Zaretskii
2011-03-25 23:39 ` Juanma Barranquero
1 sibling, 1 reply; 10+ messages in thread
From: Juanma Barranquero @ 2011-03-22 19:48 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 8307
On Tue, Mar 22, 2011 at 20:15, Eli Zaretskii <eliz@gnu.org> wrote:
> Thanks. But the original one with the infloop is still present, if
> you remove the change I asked you to apply, yes?
That one is not reproducible at will, so I'll have to test lexbind-new
for a while.
Juanma
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-22 19:48 ` Juanma Barranquero
@ 2011-03-22 19:59 ` Eli Zaretskii
2011-03-22 20:09 ` Juanma Barranquero
0 siblings, 1 reply; 10+ messages in thread
From: Eli Zaretskii @ 2011-03-22 19:59 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: 8307
> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Tue, 22 Mar 2011 20:48:38 +0100
> Cc: 8307@debbugs.gnu.org
>
> On Tue, Mar 22, 2011 at 20:15, Eli Zaretskii <eliz@gnu.org> wrote:
>
> > Thanks. But the original one with the infloop is still present, if
> > you remove the change I asked you to apply, yes?
>
> That one is not reproducible at will, so I'll have to test lexbind-new
> for a while.
I'd appreciate if you could reproduce on the trunk instead.
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-22 19:59 ` Eli Zaretskii
@ 2011-03-22 20:09 ` Juanma Barranquero
0 siblings, 0 replies; 10+ messages in thread
From: Juanma Barranquero @ 2011-03-22 20:09 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 8307
On Tue, Mar 22, 2011 at 20:59, Eli Zaretskii <eliz@gnu.org> wrote:
> I'd appreciate if you could reproduce on the trunk instead.
OK, I'll try.
Juanma
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-22 19:15 ` Eli Zaretskii
2011-03-22 19:48 ` Juanma Barranquero
@ 2011-03-25 23:39 ` Juanma Barranquero
2011-03-26 7:49 ` Eli Zaretskii
1 sibling, 1 reply; 10+ messages in thread
From: Juanma Barranquero @ 2011-03-25 23:39 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 8307
On Tue, Mar 22, 2011 at 20:15, Eli Zaretskii <eliz@gnu.org> wrote:
> But the original one with the infloop is still present, if
> you remove the change I asked you to apply, yes?
Since lexbind-new was updated I haven't been able to reproduce it
there. In the trunk I didn't see it before, and still I don't see it
now.
So consider the problem fixed, and I'll open a new bug report if I the
bug resurfaces.
Juanma
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-25 23:39 ` Juanma Barranquero
@ 2011-03-26 7:49 ` Eli Zaretskii
2011-03-26 9:41 ` Juanma Barranquero
0 siblings, 1 reply; 10+ messages in thread
From: Eli Zaretskii @ 2011-03-26 7:49 UTC (permalink / raw)
To: Juanma Barranquero; +Cc: 8307
> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Sat, 26 Mar 2011 00:39:30 +0100
> Cc: 8307@debbugs.gnu.org
>
> On Tue, Mar 22, 2011 at 20:15, Eli Zaretskii <eliz@gnu.org> wrote:
>
> > But the original one with the infloop is still present, if
> > you remove the change I asked you to apply, yes?
>
> Since lexbind-new was updated I haven't been able to reproduce it
> there. In the trunk I didn't see it before, and still I don't see it
> now.
>
> So consider the problem fixed, and I'll open a new bug report if I the
> bug resurfaces.
I'm trying to determine whether the ZV guard is needed in that loop.
I didn't commit the change I asked you to try, so it is unclear to me
how it was fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* bug#8307: Scrolling problems in lexbind-new branch
2011-03-26 7:49 ` Eli Zaretskii
@ 2011-03-26 9:41 ` Juanma Barranquero
0 siblings, 0 replies; 10+ messages in thread
From: Juanma Barranquero @ 2011-03-26 9:41 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 8307
On Sat, Mar 26, 2011 at 08:49, Eli Zaretskii <eliz@gnu.org> wrote:
> I didn't commit the change I asked you to try
Yes, I know.
> so it is unclear to me how it was fixed.
Apparently something that was originally in the trunk and not
lexbind-new "fixes" it (or hides it). If you want me to try something,
just ask.
Juanma
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2011-03-26 9:41 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-03-21 3:04 bug#8307: Scrolling problems in lexbind-new branch Juanma Barranquero
2011-03-21 17:31 ` Stefan Monnier
2011-03-21 23:41 ` Juanma Barranquero
2011-03-22 19:15 ` Eli Zaretskii
2011-03-22 19:48 ` Juanma Barranquero
2011-03-22 19:59 ` Eli Zaretskii
2011-03-22 20:09 ` Juanma Barranquero
2011-03-25 23:39 ` Juanma Barranquero
2011-03-26 7:49 ` Eli Zaretskii
2011-03-26 9:41 ` Juanma Barranquero
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