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user=> (defmacro split-while [pred top bottom] `(loop [] ~top (when ~pred ~bottom (recur))))
#'user/split-while
;; Example usage
user=> (def counter (atom 0))#'user/counter
user=> (split-while (< @counter 10) (println @counter) (swap! counter inc))0
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nil
user=> (split-while false (println @counter) (println "this wont run"))
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nil
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