Re: Wrapping my head around icon-map-list

Michael Heerdegen via Users list for the GNU Emacs text editor
<[email protected]> writes:

>
> Non-nil Lists are conses:
>
>   (A B ...) == (A . (B ...))
>
> See the definition of `x-gtk-stock-map' which uses the second syntax.
>
>
>> Having read this, I tried edited the `icon-map-list` as by prepending
>> a personal alist as follows:
>>
>> (setopt icon-map-list (cons '("etc/images/diropen" . "document-new")
>> 			    icon-map-list))
>>  => (("etc/images/diropen" . "document-new") x-gtk-stock-map)
>        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>      This is not an alist, it is a single element.
>> ...
> So there is a level of parens missing, no?

That is true. However, the way the custom variable is set up makes me
think that this is the intended arrangement:

(defcustom icon-map-list '(x-gtk-stock-map)
  "A list of alists [...]"
  :version "22.2"
  :type '(choice (const :tag "Don't use stock icons" nil)
		 (repeat (choice symbol
				 (cons (string :tag "Emacs icon")
				       (string :tag "Stock/named")))))
  :group 'pgtk)