Hello!
I much enjoyed reading the tutorial http://www.lisperati.com/casting.html
, mentioned by eyeris today. The most mind-extending thing (to me,
having Java background) is the, admittedly non-idiomatic, use of
symbols as data.
But I have two translation problems, I want to pose before going to
sleep (its pitch dark in Europe :). First the easy one:
Common Lisp
(defun describe-path (path)
`(there is a ,(second path) going ,(first path) from here.))
My Clojure version, I use a map:
(defn describe-path [path]
(let [what (path :kind) where (path :direction)]
(concat '(there is a) (list what) '(going) (list where) '(from
here.))))
Thats much less elegant. Is there a nicer way?
Thank you, alux
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