bug#59763: 29.0.60; Filling for c-ts-mode

[Theodor Thornhill via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Yuan Fu <casouri@gmail.com> writes:

>> On Dec 2, 2022, at 6:58 AM, Eli Zaretskii <eliz@gnu.org> wrote:
>> 
>>> From: Yuan Fu <casouri@gmail.com>
>>> Date: Thu, 1 Dec 2022 21:33:06 -0800
>>> 
>>> 
>>> IMO For c-ts-mode to be usable we need to have at least a basic filling
>>> function. Below is the function I have in my init.el, could someone have
>>> a look and see if it’s good? Alternatively we could copy out the comment
>>> and fill it in a temp buffer with c-mode, but I didn’t have the time to try
>>> it out and see how well it works.
>> 
>> Thanks.
>> 
>> From quick testing, I see a problem:
>> 
>>  . Visit dispnew.c and go to the comment that starts on line 324.  Delete
>>    the newline between the two lines of the comment, and invoke the
>>    function.  Observe how the first non-blank character of the comment's
>>    second line is aligned with the "/*" on the previous line, not with the
>>    text after "/*" as I'd expect.
>
> I see. I’ll need to look at how cc-mode fill comments.
>
>> 
>> Btw, this command should be bound to M-q in ts-c-mode.
>
> Will do, once our fill function works well. BTW, Theo, if you have any
> idea, don’t hesitate to go ahead :-) No obligations, of course.
>
> Yuan

Sure!  Added to my list :)  I had a function at some point that used
c-mode to do this. I'll see if I can polish it a little.

Theo