GNU bug report logs - #51766
29.0.50; Return value of buffer-chars-modified-tick changes when buffer text is not yet changed before inserting a character for non-latin input methods

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From: Ihor Radchenko <yantar92 <at> gmail.com>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: Eli Zaretskii <eliz <at> gnu.org>, 51766 <at> debbugs.gnu.org
Subject: bug#51766: 29.0.50; Return value of buffer-chars-modified-tick changes when buffer text is not yet changed before inserting a character for non-latin input methods
Date: Tue, 21 Jun 2022 12:14:54 +0800

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

>> See the above. There is real-world code doing things that make
>> Emacs ignore after-change-functions.
>
> I don't see how this relates to what I'm saying: what I'm saying is that
> for the same reason there's code that has very valid reasons to inhibit
> `after-change-functions`, there will be code that has very valid reasons
> to inhibit some new `after-really-every-change-functions`, and then
> there will inevitably also be code that abuses this.
>
> The only real solution is to "push back" and get those abuses fixed.
>
> One thing you could do, for example is replace your char-modified-tick
> check with one based on buffer-size: it won't catch all cases, but it
> won't suffer from false positives, so you can really scream bloody
> murder when it happens.

Checking the buffer-size is a great idea. Thanks!
It should be reliable enough for Org purposes.

Best,
Ihor

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