@@ -38,6 +38,10 @@ namespace NLog.MessageTemplates
     /// </summary>
     public enum CaptureType : byte
     {
+        /// <summary>
+        /// Not decided
+        /// </summary>
+        Unknown,
         /// <summary>
         /// normal {x}
         /// </summary>
// 
// Copyright (c) 2004-2017 Jaroslaw Kowalski <jaak@jkowalski.net>, Kim Christensen, Julian Verdurmen
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without 
// modification, are permitted provided that the following conditions 
// are met:
// 
// * Redistributions of source code must retain the above copyright notice, 
//   this list of conditions and the following disclaimer. 
// 
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution. 
// 
// * Neither the name of Jaroslaw Kowalski nor the names of its 
//   contributors may be used to endorse or promote products derived from this
//   software without specific prior written permission. 
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
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// 

namespace NLog.MessageTemplates
{
    /// <summary>
    /// The type of the captured hole
    /// </summary>
    public enum CaptureType : byte
    {
        /// <summary>
        /// normal {x}
        /// </summary>
        Normal,
        /// <summary>
        ///  Serialize operator {@x} (aka destructure)
        /// </summary>
        Serialize,
        /// <summary>
        /// stringification operator {$x} 
        /// </summary>
        Stringify,
    }
}
what do you think about a nullable CaptureType? Or does this have to much impact?