Implement REPL resolves #5

src/primitives.rs

@@ -66,8 +66,12 @@ pub fn eq(args: Vec<Datum>) -> Datum {
         for i in 2..args.len() {
             let current = &args[i];
             match (first, current) {
-                (Boolean(b1), Boolean(b2)) => {return Boolean(b1 == b2);},
-                (Number(n1), Number(n2)) => {return Boolean(n1 == n2);},
+                (Boolean(b1), Boolean(b2)) => {
+                    return Boolean(b1 == b2);
+                }
+                (Number(n1), Number(n2)) => {
+                    return Boolean(n1 == n2);
+                }
                 _ => {
                     println!("{:?} is not equal to {:?}", first, current);
                     return Boolean(false);
@@ -76,4 +80,4 @@ pub fn eq(args: Vec<Datum>) -> Datum {
         }
         Boolean(true)
     }
-}
+}