Re: /srv/bzr/emacs/elpa r395: * company.el (company-capf): Add support for `sorted' and `post-completion'.

[Dmitry Gutov <dgutov@yandex.ru>]

On 06.05.2013 7:22, Stefan Monnier wrote:
>>>>>> Like the header in company.el says, we still try to support Emacs 22 and
>>>>>> 23. `pcase' was only added in 23.3, I believe.
>>>>> But this is in a comment, so it's not a problem.
>>>> I'm not sure recommending to users to write new backends in a way
>>>> incompatible with older Emacs is good.
>>> It is in my interest to encourage all users to move to a more
>>> recent Emacs.
>> I still don't like the dissonance between the "Compatibility" header and
>> this recommendation, not far below it. But if you insist, let's keep it
>> that way.
>
> I definitely do not insist on it.  I just explain why I committed the
> code this way.  But as maintainer of company, you're free to make
> a different decision.

Ok, thanks. I reverted this and the other bit that explicitly required 
lexical binding.
I'll be sure to bring them back when we say goodbye to Emacs 23.

>> package.el doesn't have an easy way to install a non-latest version
>> of a package, so it will affect any users with old Emacs who are updating or
>> reinstalling the package. Provided they sometimes use `company-begin-with',
>> of course.
>
> GNU ELPA is mostly meant for Emacs>=24.  We don't actively try to
> prevent users of Emacs<24 from using GNU ELPA, but several of GNU ELPA
> packages only work in Emacs>=24.

That just means that discontinuing support for Emacs 23 is allowed.

> We can/should add a package-require for (emacs "24.1") or whichever
> version is needed, so that package.el won't automatically upgrade to
> a package that doesn't work in the currently running Emacs.

Sure. js2-mode, for example, already does that.