This isn't fully tested, but it should work. Lisp doesn't need
fixing.
(defmacro switch [choice-seq & clause-maps]
(let [choice (first choice-seq)
clauses (map #(apply concat %) clause-maps)]
`(condp = ~choice ~@(apply concat (map (fn [clause]
[(first clause) `(do ~@(next clause))])
clauses)))))
user> (macroexpand-1 '(switch (choice)
{my-choice
(having-fun)
}
{(your-choice)
(being-pragmatic)
}
{(their-choice)
(lisp-is-not-for-everyone)
}) )
(clojure.core/condp clojure.core/= choice my-choice (do (having-fun))
(your-choice) (do (being-pragmatic)) (their-choice) (do (lisp-is-not-
for-everyone)))
--
You received this message because you are subscribed to the Google
Groups "Clojure" group.
To post to this group, send email to clojure@googlegroups.com
Note that posts from new members are moderated - please be patient with your
first post.
To unsubscribe from this group, send email to
clojure+unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/clojure?hl=en
