Re: [Orgmode] Re: Support (or not) for Emacs 21, and XEmacs

[Carsten Dominik]

On Apr 19, 2010, at 1:00 PM, Michael Sperber wrote:

> Carsten Dominik <address@hidden> writes:
>
> > The compromise for me would be this:
> >
> > - You fix the things above.
> > - I leave the rest of the necessary compatibility code in
> > - I program any new features with whatever is available
> >  in Emacs 22/23 and rely on you to make it XEmacs compatible.....
>
> That would be wonderful.  I'll see that the issues are addressed:
>
> > 1. posix character classes in regular expressions, thinks like  
> > [:alpha:]
> >   These are nice because they work well with arbitrary languages.
> >   Does XEmacs suppor these now?
>
> No, but I'll see to it that they are.

Right now I am using a macro to replace them with the corresponding  
ASCII character sets - but this is not nice and even wrong in foreign  
languages.

> > 2. The overlay API - I think XEmacs actually has a compatibility lib
> >   for these, is that correct?
>
> Correct.
>
> >   One of the things you could do it to figure out if I can also  
> > switch
> >   to the API calls overlays-in and overlays-at in that library.
>
> You should, anyway: I'll take care of any problems.  I take it  
> something
> about these didn't work for you in the past: If that is so, a sentence
> or two on what those problems were would be much appreciated.

I don't remember - I wrote these compatibility functions without  
knowledge
of the library in XEmacs.  So it is well possible that the library  
functions just work - I will just switch - and wait for any bug reports.

> > 3. outline.el.  Last time  looked, XEmacs still had the horrible old
> >   outline.el which is pretty much impossible to program.
> >   I do have a port, xemacs/noutline.el in the Org distribution - if  
> > you
> >   could get that into XEmacs, that would get rid of a major  
> > annoyance,
> >   including complicated installation instructions.
>
> I'm working on this right now - should be no big problem.  A few minor
> incompatibilities with our current outline.el need to be addressed,  
> but
> I'm working on them.

OK. This is a potential source of future problems - but we will see.

> > 4. Can you make XEmacs understand mouse-3 instead of button3 ?  Or
> >   maybe it does understand these by now?
>
> No; I'll try to get this in.
>
> Won't all happen overnight, but I'm getting to work on it.  I very  
> much
> appreciate your willingness to help!

Thank you for your willingness to take much off my task list.

- Carsten