Whenever I code something like this I get the feeling a clojure guru could
do it more simply, and I love learning new tricks.
Here is my simple (real-world, btw) problem and solution. Is there a better
way?
;; Problem: given optimized* json maps (* to avoid duplicating keys):
(def optij {:name [:tom :dick :harry]
:age [1 2 3]
:tone [:do :re :mi]})
;; ... produce normal repetitious maps
(comment
[{:name :tom, :age 1, :tone :do}
{:name :dick, :age 2, :tone :re}
{:name :harry, :age 3, :tone :mi}])
;; goal #1: pivot so I can use zipmap
(comment
((:tom 1 :do) (:dick 2 :re) (:harry 3 :mi)))
;; my goal #1 approach (improvements welcome):
(apply (partial map (fn [& vs] vs))
(vals optij))
(apply (partial map vector)
(vals optij))
;; my overall approach (improvements welcome):
(let [ks (keys optij)
vs-pivoted (apply (partial map vector)
(vals optij))]
(vec (for [attributes vs-pivoted]
(zipmap ks attributes))))
Final fun question: is the original idea of compressing JSON this way
commonplace? I thought everyone was just saying to hell with the
duplication and taking the convenience of self-defining objects, but
apparently one source is not.
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