Re: Multiple major modes

[Lennart Borgman (gmail)]

Eric M. Ludlam wrote:
>   [ ... ]
> > > > "Lennart Borgman (gmail)" <address@hidden> seems to think that:
> > Stefan Monnier wrote:
> > > > and something that should be addressed without imposing restrictions on
> > > > specialized major modes.
> > > Actually, I think that in order to address it well, we will need to impose
> > > restrictions on major modes (though only on the ones involved in
> > > multiple-major-mode buffers) and maybe also on minor modes.
>
> My parsing tool (semantic, referenced earlier) solved some problems w/
> lots of mode-specific configurations via 'mode-local' variables and
> methods.  David Ponce wrote this, and suggested it here once before.
> I don't recall what the end resolution was on it.
>
> A multi-mode style thing would likely be simplified if key behaviors
> were all defined via mode-local configurations, as that would allow
> the multi-mode manager to get a complete query list of all
> configuration differences without running the major-mode function.
>
> http://cedet.cvs.sourceforge.net/cedet/cedet/common/mode-local.el?view=log

Would it be possible to catch all local bindings by setting the major 
mode in a temporary buffer and then save them for later use? This would 
avoid having to change major modes, perhaps.

> This tools has a spiff macro `with-mode-local', which lets you run a
> bunch of code as if some other mode were active.  This is used in our
> grammar file so we can operate on grammar syntax w/ lisp syntax mixed
> in.  We can also operate on tags from other buffers by momentarily
> using features of the originating major-mode.
>
> Enjoy
> Eric