GNU bug report logs - #65734
29.1.50; kill-whole-line and visibility of Org subtrees

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From: Ihor Radchenko <yantar92 <at> posteo.net>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: 65734 <at> debbugs.gnu.org, emacs-orgmode <at> gnu.org, iota <at> whxvd.name
Subject: bug#65734: [BUG] kill-whole-line on folded subtrees [9.6.8 (release_9.6.8-3-g21171d @ /home/w/usr/emacs/0/29/0/lisp/org/)]
Date: Wed, 06 Sep 2023 08:30:36 +0000

Eli Zaretskii <eliz <at> gnu.org> writes:

>> It would also make sense to group the two edits together via
>> `combine-after-change-calls', although a more universal way to know that
>> certain edits are a part of the same known command (even when called
>> non-interactively) would be useful.
>
> The command kills in two parts for a good reason, which is explained
> in the comments to the code.  So making a single group will not work,
> I think, at least not in all situations.

I think there is misunderstanding. `combine-after-change-calls' will not
affect the two-step modification of the kill ring, if we put it around
`kill-whole-line'. Or do I miss something?

> ...  And relying on after-change
> hooks to fix this use case sounds too obscure and fragile to me.

Indeed. I did not talk about this particular bug report. What I meant is
some way to group change hooks executed by the same function/command.

>> In addition, `org-kill-line' acts specially in certain scenarios:
>> 
>> For
>> * Heading <point> text :tag1:tag2:
>> 
>> `org-kill-line' will keep and re-align ":tag1:tag2:":
>> 
>> * Heading <point>      :tag1:tag2:
>> 
>> It would be nice if we could express such behavior without overriding
>> the `kill-line' command.
>
> This could be handled by a suitable extension to end-of-visible-line.
> For example, introduce a new text property which end-of-visible-line
> would then handle the same as it currently handles invisible text.

I am not sure if I like the idea of text property - marking all the tags
in buffer with text property is expensive. What about something like
`end-of-visible-line-function'?

-- 
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>

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