Re: Make all tree-sitter modes optional

[Alan Mackenzie]

Hello, Po.

On Fri, Feb 17, 2023 at 21:37:59 +0800, Po Lu wrote:
> Alan Mackenzie <acm@muc.de> writes:

> > On Wed, Feb 15, 2023 at 20:33:49 +0200, Eli Zaretskii wrote:
> >> > Date: Wed, 15 Feb 2023 17:57:15 +0000
> >> > Cc: juri@linkov.net, casouri@gmail.com, monnier@iro.umontreal.ca,
> >> >   larsi@gnus.org, theo@thornhill.no, jostein@secure.kjonigsen.net,
> >> >   emacs-devel@gnu.org
> >> > From: Alan Mackenzie <acm@muc.de>

[ .... ]

> Let me ask what I asked earlier, again?
> Does c-ts-mode make itself default upon being loaded, or does it make
> itself the default upon being first enabled?

It makes itself default upon loading, even if that loading is only in
response to C-h C-f c-ts-mode.

> The former has been a Bad Thing for as long as I can remember.

Indeed.

> The latter is not particularly problematic as long as we document the
> caveat.

I don't quite agree.  An Emacs user should retain full control over her
Emacs session.  Silently changing the entries in auto-mode-alist removes
that control and causes confusion.

> Thanks.

-- 
Alan Mackenzie (Nuremberg, Germany).