diff --git a/src/hs_robotwar/core.clj b/src/hs_robotwar/core.clj
index d416b77..967dbc0 100644
--- a/src/hs_robotwar/core.clj
+++ b/src/hs_robotwar/core.clj
@@ -75,66 +75,4 @@
       (println (evaluate (parse (lex input))))
       (recur (read-line)))))
 
-  
-
-; (def error-type-map
-;   {:parse-error "Parse Error"
-;    :end-of-line-error "End of Line Error"})
-
-; (defn error 
-;   [error-type error-string]
-;   (str (error-type-map error-type) ": " error-string))
-
-; (defn valid-number-string
-;   [n]
-;   (re-find #"^-?\d+\.?\d*$" n))
-
-; (defn number-or-string
-;   [x]
-;   (if (valid-number-string x)
-;     (Float/parseFloat x)
-;     x))
-
-; (defn string-with-idx
-;   [s, idx]
-;   (if (empty? s)
-;     nil
-;     {:token s
-;      :idx idx}))
-
-; (defn tokens-with-column-numbers
-;   "splits a string and returns a sequence of hashmaps,
-;   with column-number metadata. separated just by spaces
-;   for now. In the future, tokens won't necessarily have
-;   spaces between them."
-;   [s]
-;   (let [len (count s)]
-;     (loop [s s
-;            idx 0
-;            partial-word ""
-;            result []]
-;       (let [first-s (subs s 0 1)
-;             rest-s (subs s 1)]
-;         (cond
-;           (empty? s) (if (empty? partial-word)
-;                        result
-;                        (conj result (str-with-idx partial-word idx))
-;           (re-find #"\s" first-s) (if (empty? partial-word) 
-;                                     (recur rest-s idx "" result)
-;                                     (recur rest-s idx "" (conj result (str-with-idx
-;                                                                         partial-word idx))))
-;           :else (if (empty? partial-word)
-;                   (recur rest-s (- len (count s)) first-s result)
-;                   (recur rest-s idx (str partial-word first-s) result))))))))
-          
-
-
-; (defn validate-expr
-;   "right now just checks to see whether it's a number.
-;    will do a lot more things in the future."
-;   [expr]
-;   (if (number? expr)
-;     [expr nil]
-;     [expr (error :parse-error "Not a number")]))
-  
-
+