Added xor (^) operator to constant expressions

internal/utils/utils.go

@@ -203,6 +203,8 @@ func EvaluateExpression(expr string, lookup ConstantLookup) (int64, error) {
 			result = result | nextVal
 		case '&':
 			result = result & nextVal
+		case '^':
+			result = result ^ nextVal
 		default:
 			return 0, fmt.Errorf("unknown operator %q", op)
 		}

syntax.md

@@ -387,6 +387,7 @@ Evaluated strictly left to right:
 - `/` Division
 - `|` Bitwise OR
 - `&` Bitwise AND
+- `^` Bitwise XOR
 
 ### Constants