Subject: bug#76679: 31.0.50; forward-sentence not working in the narrowed buffer under c-ts-mode

From: Juri Linkov <[email-masked]>
Date: Tue, 11 Mar 2025 09:24:05 +0200

>> We agreed that a "sentence" in C-like languages is a thing that
>> ends with a semicolon (or a comma that separates arguments).
>>
>> However, this report raises a different question: whether forward-sentence
>> should navigate to the end of the narrowed region when the semicolon is hidden?
>
> Isn't that what forward-sentence does in e.g. text-mode?  So wouldn't
> doing that in C-like languages be consistent with that?

When you set the end of the narrowed region at the middle
of the sentence either in text-mode or in C-like languages,
then use forward-sentence to move the end of the narrowed region,
then widen with 'C-x n w', point will be not at the end
of the sentence.  This behavior makes no sense.

Regardless of the fact that treesit-forward-sentence works
differently from forward-sentence, their both results make no sense.

There is no meaningful difference whether to keep point at its old
position as treesit-forward-sentence does, or move point to the
middle of the sentence as forward-sentence does.

So I think there is no bug here.