Reads score operation as structure.

Assets/Cryville/Common/Identifier.cs

@@ -11,7 +11,6 @@ namespace Cryville.Common {
 			Key = IdentifierManager.SharedInstance.Request(name);
 		}
 		public override bool Equals(object obj) {
-			if (obj == null && Key == 0) return true;
 			if (obj == null || !(obj is Identifier)) return false;
 			return Equals((Identifier)obj);
 		}
@@ -22,6 +21,7 @@ namespace Cryville.Common {
 			return Key;
 		}
 		public override string ToString() {
+			if (Key == 0) return "";
 			return Name.ToString();
 		}
 		public static implicit operator Identifier(string identifier) {

Assets/Cryville/Crtr/Judge.cs

@@ -53,11 +53,15 @@ namespace Cryville.Crtr {
 		public PdtExpression hit;
 		public Identifier[] pass;
 		public Identifier miss;
-		public Dictionary<Identifier, PdtExpression> scores;
+		public Dictionary<ScoreOperation, PdtExpression> scores;
 	}
 	public class ScoreOperation {
-		public int name;
-		public PdtOperator op;
+		public Identifier name;
+		public Identifier op;
+		public override string ToString() {
+			if (op == default(Identifier)) return name.ToString();
+			else return string.Format("{0} {1}", name, op);
+		}
 	}
 	public class ScoreDefinition {
 		public PdtExpression value;

Assets/Cryville/Crtr/Ruleset.cs

@@ -6,6 +6,7 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Text;
+using System.Text.RegularExpressions;
 using SIdentifier = Cryville.Common.Identifier;
 
 namespace Cryville.Crtr {
@@ -163,6 +164,13 @@ namespace Cryville.Crtr {
 				if (type.Equals(typeof(Identifier))) {
 					return (Identifier)exp;
 				}
+				else if (type == typeof(ScoreOperation)) {
+					var m = Regex.Match(exp, @"^(\S+)\s*?(\S+)?$");
+					var name = new Identifier(m.Groups[1].Value);
+					if (!m.Groups[2].Success) return new ScoreOperation { name = name };
+					var op = new Identifier(m.Groups[2].Value);
+					return new ScoreOperation { name = name, op = op };
+				}
 			}
 			return base.ChangeType(value, type, culture);
 		}