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ochronus/brainfuck-clojure-4.clj

Created April 2, 2016 10:10
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brainfuck-clojure-4.clj
(defn bf-interpreter [program-code]
(loop [cells [0N], current-cell 0, instruction-pointer 0]
(condp = (get program-code instruction-pointer)
\+ (recur (update-in cells [current-cell] inc) current-cell (inc instruction-pointer))
\- (recur (update-in cells [current-cell] dec) current-cell (inc instruction-pointer))
\. (do
(print (char (nth cells current-cell)))
(recur cells current-cell (inc instruction-pointer)))
\, (let [ch (.read System/in)]
(recur (assoc cells current-cell ch) current-cell (inc instruction-pointer)))
(recur cells current-cell (inc instruction-pointer)))))
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