Re: custom on special option

[Per Abrahamsen <abraham@dina.kvl.dk>]

Kai Grossjohann <kai@emptydomain.de> writes:

> Miguel Frasson <frasson@brutus.math.leidenuniv.nl> writes:
>
>> The variable is nil (for example). Then I INS, and in the "Value menu" I
>> see "red, yellow, green, other". I select "green". Then I INS another
>> element, and I see in the value menu "red, yellow, other". Etc. 
>
> It's easier to make a set, so that you see
>
> [ ] red
> [ ] green
> [ ] yellow
>
> with some checkboxes.  Not sure, though, how the custom value thing
> comes in.

(defcustom foo '(red 2 blue)
  "The elements of foo that should be recognized."
  :type '(list (set :inline t 
                    :greedy t
                    (const red) (const blue) (const yellow))
               (repeat :inline t sexp)))

Note that this only works if the order of the elements in the list is
of no importance.