Handle variables

Yc/Program.cs

@@ -1,6 +1,7 @@
 using System;
+using System.Collections.Generic;
 using Upsilon.Evaluator;
-using Upsilon.Parser;
+using Upsilon.Utilities;
 
 namespace Yc
 {
@@ -9,6 +10,7 @@ namespace Yc
         static void Main(string[] args)
         {
             Console.WriteLine("Upsilon REPL");
+            Dictionary<string, object> variables = new Dictionary<string, object>();
             while (true)
             {
                 Console.Write("» ");
@@ -18,9 +20,10 @@ namespace Yc
                     return;
                 }
 
-                var parser = Parser.Parse(input);
-                //Console.WriteLine(parser.Print());
-                Console.WriteLine(parser.Evaluate());
+                var parsed = new Script(input, variables);
+                //Console.WriteLine(parsed.Parsed.Print());
+                Console.WriteLine(parsed.Evaluate());
+                variables = parsed.Variables;
             }
         }
     }