Created
May 27, 2015 18:02
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(ns derpa.core | |
(:gen-class)) | |
(defn initialize-cells [number] (vec (repeat number 0))) | |
(defn interpret [src] | |
(loop [src src | |
reader-position 0 | |
cells (initialize-cells 200) | |
cell-pointer 50 | |
movement :moving-forward | |
nested-left-brackets 0 | |
nested-right-brackets 0] | |
(if (= reader-position (count src)) cells ;; Terminal case - stop reading | |
(let [current-symbol (nth src reader-position)] ;; Read the current symbol | |
(cond | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-forward movement) (if (= \] current-symbol)) | |
(= :looping-backward movement) (if (= \[ current-symbol)) | |
(= \+ current-symbol) (recur src) | |
(= \- current-symbol) (recur src) | |
(= \> current-symbol) (recur src) | |
(= \< current-symbol) (recur src) | |
(= \. current-symbol) (do (print (char (nth cells cell-pointer)))) | |
(= \[ current-symbol) (if (= 0 (nth cells cell-pointer))) | |
(= \] current-symbol) (if (not (= 0 (nth cells cell-pointer)) )) | |
(= \, current-symbol) (recur src) | |
:else (recur src | |
(inc reader-position) | |
cells | |
cell-pointer | |
:moving-forward | |
nested-left-brackets | |
nested-right-brackets)))))) ;; Moves reader-position forward if the current character is unknown | |
(defn -main | |
"Time to interpret some Brainfuck" | |
[& args] | |
(do (interpret (first args)) | |
(println))) |
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