Re: Merging customize support

Wednesday, 22 December 1999

        Jan Vroonhof <vroonhof(a)math.ethz.ch&gt; writes:

...
 wmperry(a)aventail.com (William M. Perry) writes:

 > It merges all the attributes from the faces at a specific point, and merges
 > in 'default' then realizes it.  By the time realize_x_face() is called, it
 > is always fully specified.  I could just as easily have written:

 So the fallbacks are implicit? That changes the definition of what a
 face is[1]. Did they change the text properties interface or is more than
 one face at a single location only possible with overlays? 
You've been able to use multiple faces with text properties for quite a
while.  Emacs/W3 uses this all over the place, and has for ages.

A face is now (and really has always been) a collection of attributes.  It
just happens that the set of attributes is bigger/saner, and inheritance
happens at face realization time, not face creation time.

...
 It seems to me that in such a setup you could just as well just do
 away with the concept of face all together.

 All this would me much easier if we actually had access to the damn
 thing :-) 
Some of us do. :)  I just with gerd had followed the API in font.el, but
you can't have everything I guess. :)

-bp

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