GNU bug report logs - #78221
31.0.50; Improving *-change-functions notifications

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From: Ihor Radchenko <yantar92 <at> posteo.net>
To: 78221 <at> debbugs.gnu.org
Cc: monnier <at> iro.umontreal.ca, acm <at> muc.de
Subject: bug#78221: 31.0.50; Improving *-change-functions notifications
Date: Sat, 03 May 2025 16:34:12 +0000

Stefan Monnier via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs <at> gnu.org> writes:

>   Or we could rely on a (symbol) property being set on the functions
>   added to `*-change-functions` to tell whether they want to know about
>   changes to text-properties or not.
>   Or maybe a more crude way would be a buffer-local variable controlling
>   whether `*-change-functions` are called for text-property changes.

Or pass a 4th parameter to *-change-functions indicating whether the
change involved actual text edits or it only touched text-properties.

Org mode currently has to resort to
(eq org-fold-core--last-buffer-chars-modified-tick (buffer-chars-modified-tick))
checks to filter out changes in text properties.

-- 
Ihor Radchenko // yantar92,
Org mode maintainer,
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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