Am 05.11.2014 00:02, schrieb Thomas Morley:
2014-11-04 19:05 GMT+01:00 Urs Liska <u...@openlilylib.org>:
Am 04.11.2014 15:47, schrieb Jay Anderson:
On Tue, Nov 4, 2014 at 3:48 AM, Urs Liska <u...@openlilylib.org> wrote:
I want to store colors in an alist like
#(define types
'(("one" . "red")
("two" . "blue")))
I can retrieve and display the values with assoc-ref but I don't know how
to
turn the returned string into a color to be used in an override.
Try quasiquote + unquote:
#(define types
`(("one" . ,red)
("two" . ,blue)))
#(display types) => ((one 1.0 0.0 0.0) (two 0.0 0.0 1.0))
-----Jay
Hi Jay,
thanks, that was it. Still a mystery, this all ...
I would be extremely happy if someone could take the time and write a
slow-paced tutorial about this on Scores of Beauty!
Best
Urs
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As others pointed out it's a matter of quote/unquote/quasiquote,
though for completeness, there is some lilypond function which can
make your initial approach work:
#(define clrs
'(("one" . "red")
("two" . "blue")))
#(display (color? (x11-color (assoc-get "one" clrs))))
#(display (x11-color (assoc-get "one" clrs)))
Cheers,
Harm
Thanks for that hint. I *did* try that function but only in the
definition, where it didn't work.
Urs
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