Re: doc string for face-attribute-relative-p doesn't help

[Miles Bader]

Richard Stallman <address@hidden> writes:
>       Return non-nil if face ATTRIBUTE VALUE is relative.
>
>     What does that mean? How is ATTRIBUTE VALUE a face? This is
>     incomprehensible to me.
>
> I don't understand it either.  Can someone explain?

It returns non-nil if the face attribute ATTRIBUTE is relative when it
has value VALUE.  "Relative" means that the value doesn't _override_
that attribute of an underlying face during face merging, but rather
_modifies_ it.

For most attributes the only value with that property is `unspecified';
some attributes have other relative values (for instance, with :height,
floating-point numbers are relative, as they specify a scale value
rather than an absolute size).

-Miles

-- 
Yo mama's so fat when she gets on an elevator it HAS to go down.