(apply 'widget-create 'menu-choice....
Will create multiple dropdown lists.  I want a single dropdown that has 
multiple elements.  I am thinking a macro is the way to go.  Consider:

(defmacro item-element (var)
           (list 'quote `'(item ,var)))

Then (item-element "human") would evaluate to (quote (item "human"))

What I haven't been able to do is mapcar item-element over my list

("rat" "human" "mouse")

The desired output is:

(quote (item "rat")) (quote (item "human")) (quote (item "mouse"))

Note the absence of circumscribed parenthesis, i.e. this is not a list.
Suggestions?
Thanks

Mortimer

----------------------------------------------------------

Mortimer Cladwell wrote:

Your suggestion evaluates to:
>> 
>((item "human") (item "rat") (item "mouse"))
>> 
>which when inserted into a form results in the error:
>> 
>widget-create: Invalid function: (item "human")
>
Ah, I misread the widget-create arguments.  That function's doc string is
practically useless.

Evaluations that would work are:
>> 
>'(item "human") '(item "rat") '(item "mouse")
>>OR
>
>(quote (item "human"))  (quote (item "rat")) (quote (item "mouse"))
>> 
Note that there are no enclosing parenthesis around the list.
>
As Andreas points out, you need apply:
(defvar species '("human" "rat" "mouse"))
(apply 'widget-create 'menu-choice :tag "Select Host Species" :value "unknown" :notify (lambda (widget &rest ignore) (setq host-species (widget-value widget))) (mapcar (lambda (label) (list 'item label)) species))
--
Kevin Rodgers
Denver, Colorado, USA


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