Re: Keybinding that loops through Major Modes

[Christopher Dimech <dimech@gmx.com>]

> Sent: Tuesday, November 03, 2020 at 10:44 AM
> From: "Jean Louis" <bugs@gnu.support>
> To: "Christopher Dimech" <dimech@gmx.com>
> Cc: help-gnu-emacs@gnu.org
> Subject: Re: Keybinding that loops through Major Modes
>
> * Christopher Dimech <dimech@gmx.com> [2020-11-03 11:51]:
> >
> >
> >
> > > Sent: Tuesday, November 03, 2020 at 9:11 AM
> > > From: tomas@tuxteam.de
> > > To: help-gnu-emacs@gnu.org
> > > Subject: Re: Keybinding that loops through Major Modes
> > >
> > > On Mon, Nov 02, 2020 at 10:10:02PM +0100, Christopher Dimech wrote:
> > > > I shall explain better then.  In my .texi files I customarily include commands
> > > > from other modes or want to use some hooks from other modes (e.g. org-mode).
> > > > So even after I load a file with the default mode, I would need to quickly
> > > > shift to another mode temporarily, then switch back to normal-mode.
> > >
> > > Perhaps your problem becomes different [0] if you squint at it from
> > > another angle (space vs time): do you really want your whole buffer
> > > to "switch mode", or are you looking after some regions "having a
> > > different mode"?
> >
> > That's what I had in mind, for the whole buffer
> >
> > > In the second case, look, e.g. for "multiple major modes" [1]. It's
> > > a class of problems for which need exists (e.g. Org source snippets,
> > > but also those PHP cum HTML cum Javascript thingies.
> >
> > Indeed.  Customarily I would need to change mode on just a portion of the
> > code I would be working with.
>
>
> I do not know by which settings, but I do see that Org snippets with
> programming language inside behave just as the mode:
>
> If I have this in Org:
>
> #+begin_src emacs-lisp :results output silent
>
> Then I can see syntax highlighting and I get indentation as well. But
> not all features.

The major power would not be the highlighting itself, but the operations
associated with the mode.

> Maybe soolution could be to narrow-to-region, change the mode, and
> then by exiting from narrow to region to change it back to original
> mode. It could be one function.
>
>