mild cleanup

src/main.rs

@@ -63,16 +63,16 @@ impl Program<'_> {
     return program
   }
 
-  fn should_skip(term: &str) -> bool {
-    if term == "program" {
-      return true;
-    } else {
-      return false;
-    }
-  }
-
   fn digest(&self, tree: &ParseTree) {
     
+    if tree.lhs.to_string() == "<program$1>" {
+      self.digest_1(tree);
+      return;
+    } else if tree.lhs.to_string() == "<unit>" {
+      self.digest_unit(tree);
+      return;
+    }
+
     println!("Program::digest {}", tree.lhs.to_string());
     // mut because that recursion could get nasty.
 
@@ -86,7 +86,7 @@ impl Program<'_> {
             continue;
           }
           if tree.lhs.to_string() == "<program$1>" {
-            self.digest_1(tree);
+            self.digest(tree);
           }
         }
       }
@@ -105,12 +105,7 @@ impl Program<'_> {
           if tree.lhs.to_string().starts_with("<_") {
             continue;
           }
-          if tree.lhs.to_string() == "<program$1>" {
-            self.digest_1(tree);
-          }
-          if tree.lhs.to_string() == "<unit>" {
-            self.digest_unit(tree);
-          }
+          self.digest(tree);
         }
       }
     }