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Subject: Re: Request for objections...
References: <u467vx5uwr.fsf@pentagana.sonic.jp> <m2bu5po17i.fsf@altair.xemacs.org> <s1cu3jh2xs6.fsf@mousa.jaist.ac.jp>
From: jhod@po.iijnet.or.jp (P. E. Jareth Hein)
In-Reply-To: morioka@jaist.ac.jp's message of 02 Jun 1997 17:51:05 +0900
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Date: 02 Jun 1997 18:28:22 +0900
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morioka@jaist.ac.jp ($B<i2,(B $BCNI'(B / MORIOKA Tomohiko) writes:

> >>>>> In <m2bu5po17i.fsf@altair.xemacs.org> 
> >>>>>	"sb" = Steven L Baur <steve@xemacs.org> wrote:
> sb> P E Jareth Hein <jhod@po.iijnet.or.jp> writes:
> 
> sb> > I am proposing (have already started the work) to alter the
> sb> > behaivior so that when an end (or start, for that matter) is
> sb> > closed, the cursor will be drawn inside the respective glyph.
> sb>  ...
> sb> > Any screams of anguish from the audience?
> 
> sb> So long as (in particular) the MIME glyph code (tm/SEMI/VM, etc.)
> sb> continues to work I have no problem with this.
> 
>   tm and SEMI uses different implementations of emu to solve it.  I
> would like to change to sync with Emacs if possible.
> 

In what way can this be changed to sync with FSF-Emacs?  As they don't
have extents, what similar functionality must I keep in mind?  I
haven't used a version of FSF-emacs really since 19.29...  A quick
persual through overlay.el shows me that they have 'before-string and
'after-string properties, so where is the cursor drawn when at either
end of an overlay?  And while I'm at it, what are
'insert-in-front-hooks and 'insert-behind-hooks?  Useful enough to try 
and support them?  I will also be implementing 'point-enter-hook and
'point-leave-hook on extents, so is anyone clamoring for something
like 'modification-hooks?

--
Jareth


