Re: Colors in alists

[Urs Liska]

Hi all who replied (I'm just writing this once and mean all),

thank you for your interesting approaches. In the end I'll stick with 
Jay's suggestion. It's slightly awkward when defining the alist, but it 
seems to me more efficient when retrieving the element. The alist is 
defined only once when the file is included but the colors are retrieved 
each time the function is called.

Best and thanks
Urs

Am 05.11.2014 10:08, schrieb address@hidden:
> > > > > > "U" == Urs Liska <address@hidden> writes:
>      U> I want to store colors in an alist like
>      U> #(define types
>      U>   '(("one" . "red")
>      U>     ("two" . "blue")))
>
>      U> I can retrieve and display the values with assoc-ref but I don't
>      U> know how to turn the returned string into a color to be used in
>      U> an override.
>
> Here's another approach, not fuzzing with the structure (assoc-list) you
> set up.
>
> #(define types-strings
>    '(("one" . "red")
>      ("two" . "blue")))
>
> #(display (eval-string (assoc-ref types-strings "one")))
>
> Perhaps a more 'schemish' one - just storing pointers:
>
> #(define types-symbols
>    '((one . red)
>      (two . blue)))
>
> #(display (eval (assoc-ref types-symbols 'two) (interaction-environment)))
>
> -naders
>
>
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