Extract out program related methods in prep for extract class

michaelgwelch · Mar 22, 2012 · dbad7a86b5f5e850e11f897364d876c01ec8ae47 · dbad7a8
1 parent 74ad715
commit dbad7a86b5f5e850e11f897364d876c01ec8ae47
Unified Split

Showing with 18 additions and 3 deletions.

+18 −3 csharp/BrainmessShort/Main.cs
diff --git a/csharp/BrainmessShort/Main.cs b/csharp/BrainmessShort/Main.cs
@@ -20,12 +20,27 @@ public static void Main(string[] args)
            new Brainmess(reader.ReadToEnd()).Run();
            reader.Close();
        }
+
+        char Fetch()
+        {
+            return program[pc];
+        }
+
+        int JumpForward()
+        {
+            return program.FindMatch(pc - 1) + 1;
+        }
+
+        int JumpBackward()
+        {
+            return program.FindMatch(pc - 1);
+        }
        
        public void Run() 
        {
            while(pc < program.Length)
            {
-                char instruction = program[pc];
+                char instruction = Fetch ();
                pc++;
                switch(instruction)
                {
@@ -50,13 +65,13 @@ public void Run()
                case '[':
                    if (tape[tc] == 0)
                    {
-                        pc = program.FindMatch(pc - 1) + 1;
+                        pc = JumpForward ();
                    }
                        break;
                case ']':
                    if (tape[tc] != 0)
                    {
-                        pc = program.FindMatch(pc - 1);
+                        pc = JumpBackward ();
                    }
                    break;
                }