Re: [Emacs-diffs] scratch/widen-less a4ba846: Replace prog-widen with consolidating widen calls

[Dmitry Gutov]

On 12/2/17 8:58 PM, Eli Zaretskii wrote:

> > Still. Why would you need it? What benefits haven't you been able to
> > achieve without that support, while working on Emacs?
>
> I don't understand the question.

I'm asking why "Emacs is written in these 2 languages" is important.

> Surely, a feature that aims to
> support multiple major modes should strive to support CC Mode?

Not necessarily. It should first and foremost support the languages that 
are most important for our users.

> They are important, but so are C-based languages: C++, Java, Awk, etc.

I don't know CC Mode, and cannot provide patches for us. I tried 
debugging related problems a few times, and those turned out to be 
fairly long spelunking expeditions.

However long it will take just to convince Alan to agree, is anybody's 
guess.

> It's not a catastrophe.  Assuming Emacs 26.1 is not a complete
> disaster, we could decide releasing Emacs 27.1 as the next version.

Not a catastrophe indeed. But no step forward for mixed-modes support in 
Emacs 26 would be unfortunate.

> Why would we need to remove that for Emacs 26.1?

It's not well supported, and it's incompatible with the code we are 
discussing. There's no point in having it present in Emacs 26, and then 
removing it in Emacs 27.