bug#18729: [PATCH] subr.el (set-key): New macro making creating new bindings more concise.

[Stefan Monnier]

> +(defmacro set-key (keymap key &rest def)

I'm not convinced the added complexity is worth the trouble, I'm afraid.
I don't see a real benefit in

   (set-key :global KEY CMD)
   (set-key :local KEY CMD)
   (set-key MAP KEY CMD)

over

   (global-set-key KEY CMD)
   (local-set-key KEY CMD)
   (define-key MAP KEY CMD)
or
   (define-key global-map KEY CMD)
   (define-key (current-local-map) KEY CMD)
   (define-key MAP KEY CMD)

I also don't see the benefit of (:args ARGS INTERACTIVE . BODY)
over (lambda ARGS (interactive INTERACTIVE) . BODY).

The only thing I think is really valuable is things like

   (set-key ... KEY (dired "foo"))

For which there is also a precedent in easy-define-menu (where the CMD
can be either a symbol or an expression, in which case that expression
gets wrapped in (lambda () (interactive) ...)).

Maybe we could simply extend define-key to accept

   (define-key MAP KEY '(dired "foo"))


-- Stefan