public static string ResolveCustomMacro(MacroResolver sender, string expression, out bool match)
    {
        match = false;
        string result = "";
        // Add your custom macro evaluation
		//If the macro uses parameters...
        if (sender.CurrentParameters.Length > 0)
        {
            //Add all the parsed parameters and values to a collection to make them easier to access
            Dictionary<string, string> parameters = new Dictionary<string, string>();
            for (int index = 0; index < sender.CurrentParameters.GetLength(1); index++)
            {
                parameters.Add(sender.CurrentParameters[index, 0], sender.CurrentParameters[index, 1]);
            }

            switch (expression.ToLower().Split('|')[0])
            {
                case "MacroName":
                    match = true;
		    result = //Do Stuff;
				   
                    break;
             }
        }
		//No Params in the macro
		else
		{}
		return result;
}