* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
@ 2016-12-12 11:49 Andreas Röhler
2016-12-12 16:53 ` Eli Zaretskii
0 siblings, 1 reply; 9+ messages in thread
From: Andreas Röhler @ 2016-12-12 11:49 UTC (permalink / raw)
To: 25181
Bug does not appear with Emacs -Q, as some fontification in buffer seems
to trigger it.
Text in buffer:
git reset HEAD test/2.sh
Cursor at pos 16. i.e. beginning of word "test".
C-a doesn't move point.
Watching move-beginning-of-line edebug, at line 6415
(skip-chars-backward "^\n")
jumps correctly to BOL.
Error results from following later on:
(setq first-vis-field-value
(constrain-to-field first-vis orig (/= arg 1) t nil))
Here first-vis-field-value is set to orig, i.e. pos 16, where it jumps
back-to, not leaving point at BOL.
When C-a is called at or from behind word "test", it stops at pos 16,
when called before it reaches BOL
In GNU Emacs 25.1.90.1 (i686-pc-linux-gnu, GTK+ Version 3.14.5)
of 2016-11-29
Windowing system distributor 'The X.Org Foundation', version 11.0.11604000
System Description: Debian GNU/Linux 8.6 (jessie)
Configured using:
'configure --with-modules'
Configured features:
XPM JPEG TIFF GIF PNG RSVG SOUND GPM DBUS GSETTINGS NOTIFY ACL GNUTLS
LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11
MODULES
Important settings:
value of $LANG: de_DE.utf8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
Major mode: Shell-script
Minor modes in effect:
shell-dirtrack-mode: t
diff-auto-refine-mode: t
highlight-changes-visible-mode: t
show-paren-mode: t
save-place-mode: t
override-global-mode: t
sh-electric-here-document-mode: t
winner-mode: t
tooltip-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent messages:
Result: 16 (#o20, #x10, ?\C-p)
Pos. 263500 als register "a" [2 times]
Back to top level [2 times]
move-beginning-of-line
Mark set
Pos. 263500 als register "a"
Mark set
nil
move-beginning-of-line
^ permalink raw reply [flat|nested] 9+ messages in thread* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-12 11:49 bug#25181: 25.1.90; move-beginning-of-line doesn't move point Andreas Röhler
@ 2016-12-12 16:53 ` Eli Zaretskii
2016-12-12 19:04 ` Andreas Röhler
2016-12-13 9:25 ` Andreas Röhler
0 siblings, 2 replies; 9+ messages in thread
From: Eli Zaretskii @ 2016-12-12 16:53 UTC (permalink / raw)
To: Andreas Röhler; +Cc: 25181
> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
> Date: Mon, 12 Dec 2016 12:49:05 +0100
>
> Bug does not appear with Emacs -Q, as some fontification in buffer seems
> to trigger it.
>
> Text in buffer:
>
> git reset HEAD test/2.sh
>
> Cursor at pos 16. i.e. beginning of word "test".
>
> C-a doesn't move point.
Please show a complete recipe, starting from "emacs -Q" (and loading
any optional packages/customizations as needed). It's hard to discuss
an issue without being able to test-drive it.
> Watching move-beginning-of-line edebug, at line 6415
>
> (skip-chars-backward "^\n")
>
> jumps correctly to BOL.
>
> Error results from following later on:
>
> (setq first-vis-field-value
> (constrain-to-field first-vis orig (/= arg 1) t nil))
>
> Here first-vis-field-value is set to orig, i.e. pos 16, where it jumps
> back-to, not leaving point at BOL.
I'm not sure I understood, but if I did, this is a feature: functions
such as beginning-of-line stop moving at field boundaries.
Once again, if you show an actual example, it will be much easier to
decide whether there's a bug here, and if so, what is it.
Thanks.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-12 16:53 ` Eli Zaretskii
@ 2016-12-12 19:04 ` Andreas Röhler
2016-12-13 9:25 ` Andreas Röhler
1 sibling, 0 replies; 9+ messages in thread
From: Andreas Röhler @ 2016-12-12 19:04 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 25181
[-- Attachment #1: Type: text/plain, Size: 823 bytes --]
On 12.12.2016 17:53, Eli Zaretskii wrote:
>> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
>> Date: Mon, 12 Dec 2016 12:49:05 +0100
>>
>> Bug does not appear with Emacs -Q, as some fontification in buffer seems
>> to trigger it.
>>
>> Text in buffer:
>>
>> git reset HEAD test/2.sh
>>
>> Cursor at pos 16. i.e. beginning of word "test".
>>
>> C-a doesn't move point.
> Please show a complete recipe, starting from "emacs -Q" (and loading
> any optional packages/customizations as needed). It's hard to discuss
> an issue without being able to test-drive it.
Unfortunately didn't found a way from "emacs -Q" yet.
Attach a png displaying the property at stopping point.
BTW copied the text after stop-column --i.e. after "git reset HEAD"--
from a shell-buffer.
Maybe the properties have been taken from there?
[-- Attachment #2: prop.png --]
[-- Type: image/png, Size: 125103 bytes --]
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-12 16:53 ` Eli Zaretskii
2016-12-12 19:04 ` Andreas Röhler
@ 2016-12-13 9:25 ` Andreas Röhler
2016-12-13 16:05 ` Eli Zaretskii
1 sibling, 1 reply; 9+ messages in thread
From: Andreas Röhler @ 2016-12-13 9:25 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 25181
On 12.12.2016 17:53, Eli Zaretskii wrote:
>> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
>> Date: Mon, 12 Dec 2016 12:49:05 +0100
>>
>> Bug does not appear with Emacs -Q, as some fontification in buffer seems
>> to trigger it.
>>
>> Text in buffer:
>>
>> git reset HEAD test/2.sh
>>
>> Cursor at pos 16. i.e. beginning of word "test".
>>
>> C-a doesn't move point.
> Please show a complete recipe, starting from "emacs -Q" (and loading
> any optional packages/customizations as needed). It's hard to discuss
> an issue without being able to test-drive it.
>
>> Watching move-beginning-of-line edebug, at line 6415
>>
>> (skip-chars-backward "^\n")
>>
>> jumps correctly to BOL.
>>
>> Error results from following later on:
>>
>> (setq first-vis-field-value
>> (constrain-to-field first-vis orig (/= arg 1) t nil))
>>
>> Here first-vis-field-value is set to orig, i.e. pos 16, where it jumps
>> back-to, not leaving point at BOL.
> I'm not sure I understood, but if I did, this is a feature: functions
> such as beginning-of-line stop moving at field boundaries.
>
Hmm, is this reasonable? BOL is a very basic concept. Don't think it
should be permitted to be interfered with fields.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-13 9:25 ` Andreas Röhler
@ 2016-12-13 16:05 ` Eli Zaretskii
2016-12-13 17:55 ` Andreas Röhler
0 siblings, 1 reply; 9+ messages in thread
From: Eli Zaretskii @ 2016-12-13 16:05 UTC (permalink / raw)
To: Andreas Röhler; +Cc: 25181
> Cc: 25181@debbugs.gnu.org
> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
> Date: Tue, 13 Dec 2016 10:25:32 +0100
>
> >> (setq first-vis-field-value
> >> (constrain-to-field first-vis orig (/= arg 1) t nil))
> >>
> >> Here first-vis-field-value is set to orig, i.e. pos 16, where it jumps
> >> back-to, not leaving point at BOL.
> > I'm not sure I understood, but if I did, this is a feature: functions
> > such as beginning-of-line stop moving at field boundaries.
> >
>
> Hmm, is this reasonable? BOL is a very basic concept. Don't think it
> should be permitted to be interfered with fields.
The idea is that a Lisp program would use fields only when the
produced effect is what the user would expect. You see this every day
in action when you type "C-x C-f" and then C-a: point stops at the
beginning of the default directory, without entering the "Find file:"
prompt. Moving point to BOL in this case would be a nuisance. (You
can still get to the beginning of line by other means, like C-b.)
That's what fields are all about. If you don't want this effect,
don't use fields; they are opt-in.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-13 16:05 ` Eli Zaretskii
@ 2016-12-13 17:55 ` Andreas Röhler
2016-12-13 18:21 ` Eli Zaretskii
0 siblings, 1 reply; 9+ messages in thread
From: Andreas Röhler @ 2016-12-13 17:55 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 25181
On 13.12.2016 17:05, Eli Zaretskii wrote:
>>
>> Hmm, is this reasonable? BOL is a very basic concept. Don't think it
>> should be permitted to be interfered with fields.
> The idea is that a Lisp program would use fields only when the
> produced effect is what the user would expect. You see this every day
> in action when you type "C-x C-f" and then C-a: point stops at the
> beginning of the default directory, without entering the "Find file:"
> prompt. Moving point to BOL in this case would be a nuisance. (You
> can still get to the beginning of line by other means, like C-b.)
>
> That's what fields are all about. If you don't want this effect,
> don't use fields; they are opt-in.
Felt rather having been ad-opted ;) Still think there is a bug - might
be a seldom one.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-13 17:55 ` Andreas Röhler
@ 2016-12-13 18:21 ` Eli Zaretskii
2016-12-13 20:10 ` Andreas Röhler
0 siblings, 1 reply; 9+ messages in thread
From: Eli Zaretskii @ 2016-12-13 18:21 UTC (permalink / raw)
To: Andreas Röhler; +Cc: 25181
> Cc: 25181@debbugs.gnu.org
> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
> Date: Tue, 13 Dec 2016 18:55:10 +0100
>
> Still think there is a bug - might be a seldom one.
I didn't say I disagreed, but I do need to see a recipe to look into
this any further.
^ permalink raw reply [flat|nested] 9+ messages in thread
* bug#25181: 25.1.90; move-beginning-of-line doesn't move point
2016-12-13 18:21 ` Eli Zaretskii
@ 2016-12-13 20:10 ` Andreas Röhler
2016-12-13 20:04 ` Eli Zaretskii
0 siblings, 1 reply; 9+ messages in thread
From: Andreas Röhler @ 2016-12-13 20:10 UTC (permalink / raw)
To: Eli Zaretskii; +Cc: 25181
On 13.12.2016 19:21, Eli Zaretskii wrote:
>> Cc: 25181@debbugs.gnu.org
>> From: Andreas Röhler <andreas.roehler@easy-emacs.de>
>> Date: Tue, 13 Dec 2016 18:55:10 +0100
>>
>> Still think there is a bug - might be a seldom one.
> I didn't say I disagreed, but I do need to see a recipe to look into
> this any further.
I'd say the bug-source is visible by design. Such things like mentioned
by docu:
"To ignore intangibility, bind `inhibit-point-motion-hooks' to t" IMHO
don't belong onto such a general command.
Adapting C-a to intangibility or related things should be up to the
mode. WRT to your example find-file, probably it would be at the
minibuffer to care for an appropriate C-a then.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2016-12-12 11:49 bug#25181: 25.1.90; move-beginning-of-line doesn't move point Andreas Röhler
2016-12-12 16:53 ` Eli Zaretskii
2016-12-12 19:04 ` Andreas Röhler
2016-12-13 9:25 ` Andreas Röhler
2016-12-13 16:05 ` Eli Zaretskii
2016-12-13 17:55 ` Andreas Röhler
2016-12-13 18:21 ` Eli Zaretskii
2016-12-13 20:10 ` Andreas Röhler
2016-12-13 20:04 ` Eli Zaretskii
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