Re: [Emacs-diffs] /srv/bzr/emacs/trunk r105470: Improve documentation of `special' modes.

[Eli Zaretskii <eliz@gnu.org>]

> From: Stefan Monnier <monnier@IRO.UMontreal.CA>
> Cc: emacs-devel@gnu.org
> Date: Tue, 16 Aug 2011 13:11:22 -0400
> 
> > I don't actually have a good understanding of why would a mode want to
> > behave like that.  The above explanation is purely phenomenological,
> > so if I would need to determine whether my mode needs it, I'd be
> > probably stumped.  I don't really see the connection between
> > "specially-prepared" and "don't use me as the default mode".
> > Can you explain the considerations for when to use this feature?  I
> > will then clarify this in the manual.
> 
> Indeed, I'm just as lost as you are :-(
> For that reason, I'd be happy to get rid of this "use as the default
> mode" thingy.  I.e. we should simply never inherit the major mode of new
> buffers from the current buffer (if the global value of major-mode is
> nil, then the default major-mode when creating a new buffer will be
> fundamental-mode, and that's it).

Are we sure the nil-means-use-current-buffer-major-mode feature is not
used too much to get rid of it?

And if we do that, how would a Lisp program specify that the major
mode of the current buffer is to be used for a newly created buffer?