Focus the problem and clean up naming in macros

Fixes #134

resources/koans.clj

@@ -264,8 +264,6 @@
                   (drop 2 form)
                   "Hello, Macros!"
                   10
-                  '(+ 9 1)
+                  '(+ 9 1)]}]
-                  '(* 10 2)
-                  '(+ 10 (2 * 3))]}]
 
 ]

src/koans/24_macros.clj

@@ -7,23 +7,23 @@
 (defmacro infix [form]
   (list (second form) (first form) (nth form 2)))
 
-(defmacro infix-better [form]
+(defmacro infix-concise [form]
   `(~(second form) ; Note the syntax-quote (`) and unquote (~) characters!
     __
-    __ ))
+    __))
 
-(defmacro r-infix [form]
+(defmacro recursive-infix [form]
   (cond (not (seq? form))
         __
         (= 1 (count form))
-        `(r-infix ~(first form))
+        `(recursive-infix ~(first form))
         :else
         (let [operator (second form)
               first-arg (first form)
               others __]
           `(~operator
-            (r-infix ~first-arg)
+            (recursive-infix ~first-arg)
-            (r-infix ~others)))))
+            (recursive-infix ~others)))))
 
 (meditations
   "Macros are like functions created at compile time"
@@ -36,10 +36,10 @@
   (= __ (macroexpand '(infix (9 + 1))))
 
   "You can do better than that - hand crafting FTW!"
-  (= __ (macroexpand '(infix-better (10 * 2))))
+  (= '(* 10 2) (macroexpand '(infix-concise (10 * 2))))
 
   "Things don't always work as you would like them to... "
-  (= __ (macroexpand '(infix-better ( 10 + (2 * 3)))))
+  (= '(+ 10 (2 * 3)) (macroexpand '(infix-concise (10 + (2 * 3)))))
 
   "Really, you don't understand recursion until you understand recursion"
-  (= 36 (r-infix (10 + (2 * 3) + (4 * 5)))))
+  (= 36 (recursive-infix (10 + (2 * 3) + (4 * 5)))))