* Basic visibility cycling bug in 8.3.6
@ 2016-10-15 15:22 Marcus Zibrowius
2016-10-15 20:25 ` Nicolas Goaziou
0 siblings, 1 reply; 3+ messages in thread
From: Marcus Zibrowius @ 2016-10-15 15:22 UTC (permalink / raw)
To: emacs-orgmode
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I am running org-mode 8.3.6 (8.3.6-6-g194e51-elpa
@ .../.emacs.d/elpa/org-20161003/) in GNU Emacs 24.3.1
(x86_64-pc-linux-gnu, GTK+ Version 3.10.7).
In this version, visibility cycling does not work as expected. Consider
the following three-line example file:
* a
** b
** c
Consider the following sequence of commands:
1. Place cursor on the letter b.
2. In the menu, choose Org > Refresh/Reload > Refresh setup current
buffer.
(I do not know how to access this command directly).
3. Press TAB on your keyboard.
If I do this in org-mode 8.3.6, my buffer looks as follows:
* a
** b
...
In this minimalistic example, pressing TAB once more will bring back the
line with the c, but in more complex examples, some parts of the buffer
seem to "get lost". Moreover, I often find my files garbled like this
when I open them from the agenda.
If I apply the above sequence of commands using my built-in org-mode
7.9.3, everything is fine.
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^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Basic visibility cycling bug in 8.3.6
2016-10-15 15:22 Basic visibility cycling bug in 8.3.6 Marcus Zibrowius
@ 2016-10-15 20:25 ` Nicolas Goaziou
[not found] ` <1476597091.2755.18.camel@XPS12>
0 siblings, 1 reply; 3+ messages in thread
From: Nicolas Goaziou @ 2016-10-15 20:25 UTC (permalink / raw)
To: Marcus Zibrowius; +Cc: emacs-orgmode
Hello,
Marcus Zibrowius <marcus.zibrowius@hhu.de> writes:
> In this version, visibility cycling does not work as expected. Consider
> the following three-line example file:
>
> * a
> ** b
> ** c
>
> Consider the following sequence of commands:
> 1. Place cursor on the letter b.
> 2. In the menu, choose Org > Refresh/Reload > Refresh setup current
> buffer.
Note that you are leaving, on purpose, point in an invisible part of the
document.
> (I do not know how to access this command directly).
> 3. Press TAB on your keyboard.
>
> If I do this in org-mode 8.3.6, my buffer looks as follows:
>
> * a
> ** b
> ...
>
> In this minimalistic example, pressing TAB once more will bring back the
> line with the c, but in more complex examples, some parts of the buffer
> seem to "get lost". Moreover, I often find my files garbled like this
> when I open them from the agenda.
You can reveal text around point with C-c C-r (or even C-u C-c C-r). See
`org-reveal' for details.
By the way, Org 9.0 (yet to be released) contains a variable to control
this: `org-show-context-detail'. You may want to update Org.
> If I apply the above sequence of commands using my built-in org-mode
> 7.9.3, everything is fine.
I can reproduce the same with Org 7.9.3.
Regards,
--
Nicolas Goaziou
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Basic visibility cycling bug in 8.3.6
[not found] ` <1476597091.2755.18.camel@XPS12>
@ 2016-10-17 6:42 ` Nicolas Goaziou
0 siblings, 0 replies; 3+ messages in thread
From: Nicolas Goaziou @ 2016-10-17 6:42 UTC (permalink / raw)
To: Marcus Zibrowius; +Cc: Org Mode List
Hello,
Marcus Zibrowius <marcus.zibrowius@hhu.de> writes:
Cc'ing to the list for further discussion.
> Excellent! Thanks a lot for helping so quickly. I still maintain that
> the behaviour is different for me in org-mode 7.9.3, but I understand
> now that it's a (new?) feature rather than a bug.
I misread your version string. The behaviour you describe doesn't happen
in Org 7.9.3f, but was introduced in
2efbd0f138180fe14773d5485ad3c59332d6ddb3, i.e., between Org 7.9.3f and
and Org 7.9.4. I can indeed observe the same with the latter.
However this change never made it into the following release, i.e., Org
8.0. You're observing a very short-lived feature.
> Let me reiterate what I think is different , now that I understand
> better what is happening: in org-mode 8.3.6, if I start with
>
> * a
> ** b
> ** c
> ** d
> ** e
> ** f
> ** g
> ** h
>
> with point at e, then if I collapse with Shift+TAB and reexpand with
> TAB, I get only:
>
> * a...
> ** e
> ...
>
> with point at the beginning of the line **e, and I can reexpand the
> whole tree with C-c C-r. So the line in which point was is somehow
> remembered. In contrast, Shift+TAB followed by TAB in org-mode 7.9.3f
> (details below) brings back the whole tree directly, but forgets where
> point was: point ends up just right of a.
I think it is important to preserve point when cycling view. It would be
surprising if a function modifying visibility also moved it. Besides,
this is useful when one wants to have a glimpse to the overview (S-TAB)
and go back to the editing location (another S-TAB) immediatly after.
I have no strong opinion on what should be displayed when pressing TAB
in this case, tho. It seems the implentation of `org-cycle' sort of
decided for us, i.e., it wasn't meant to handle this situation.
Regards,
--
Nicolas Goaziou 0x80A93738
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2016-10-15 15:22 Basic visibility cycling bug in 8.3.6 Marcus Zibrowius
2016-10-15 20:25 ` Nicolas Goaziou
[not found] ` <1476597091.2755.18.camel@XPS12>
2016-10-17 6:42 ` Nicolas Goaziou
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