/// <summary>
        /// Get a built-in FutScript function's signature from a function name
        /// </summary>
        /// <param name="function_name"></param>
        /// <returns></returns>
        string GetFunctionSignature(string function_name)
        {
            MethodInfo method_info = Script.GetBuiltInFunction(function_name);

            FunctionParserAttribute function_info =
                (FunctionParserAttribute)method_info.GetCustomAttribute(typeof(FunctionParserAttribute));

            return(function_info.Signature);
        }
        /// <summary>
        /// Adds menu strip sections based on FunctionParserAttribute.Category.
        /// Adds menu strip items within the sections based on FunctionParserAttribute.Signature.
        /// </summary>
        void InitializeMenuStrip()
        {
            foreach (MethodInfo mi in Script.GetBuiltInFunctions())
            {
                FunctionParserAttribute function_info =
                    (FunctionParserAttribute)mi.GetCustomAttribute(typeof(FunctionParserAttribute));

                ToolStripMenuItem dropdown_menu      = GetOrAddDropDownMenu(menuStrip1, function_info.Category);
                ToolStripMenuItem func_sig_mene_item = new ToolStripMenuItem(function_info.Signature);
                func_sig_mene_item.Click += QuickCode;
                dropdown_menu.DropDownItems.Add(func_sig_mene_item);
            }
        }