bug#25929: 25.2; plists and map-*

[Lars Ingebrigtsen]

A thing just occurred to me: Does the map-* functions work for plists,
too?  plists are, like, the fourth major mapping structure we have in
Lisp.

Wouldn't it be easy to extend map-* to handle plists, too?  For
instance, map-delete (of course) knows whether it's looking at a hash
table or an array, but it can also easily distinguish between an alist
and a plist by just looking at the first element, can't it?

It's a bit hacky, though.  But might be nice.

-- 
(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no