On Tue, 2025-01-14 at 08:25 +0100, Arash Esbati wrote:
> Tim Ruffing <[email protected]> writes:
>
> > AUCTeX does the opposite. This means that after loading AUXTeX,
> > we'll
> > get this "funny" value for major-mode-remap-defaults:
> >
> > ((doctex-mode . docTeX-mode)
> > (latex-mode . LaTeX-mode)
> > (texinfo-mode . Texinfo-mode)
> > (plain-tex-mode . plain-TeX-mode)
> > (tex-mode . TeX-tex-mode)
> > (LaTeX-mode . latex-mode)
> > (plain-TeX-mode . plain-tex-mode)
> > (TeX-mode . tex-mode))
> >
> > Now this is full chaos. If you set latex-mode in auto-mode-alist,
> > you'll get LaTeX-mode, and the other way around. (I mean, at least
> > Emacs stops after one remapping and doesn't enter infinite loop.)
>
> I'm not sure if I follow. Can you provide a recipe what and how you
> add
> an entry to `auto-mode-alist' that break things? The value above
> might
> look funny, but AFAICT, it works. I currently fail to see the chaos.
>
Just with the defaults, without changing `auto-mode-alist' manually:
1. touch /tmp/test.drv
2. Start Emacs 30.93.2 with AUCTeX installed
3. Visit /tmp/test.drv
4. M-x describe-mode. The mode is latex-mode instead of LaTeX-mode
This is because AUCTeX this to `auto-mode-alist':
("\\.drv\\'" . LaTeX-mode)
And then this remapping (new in Emacs 30) kicks in:
(LaTeX-mode . latex-mode)
I expect that the same will happen with any entry manually added to
`auto-mode-alist' if it specifies an AUCTeX mode.
