FastColoredTextBoxNS.CommandManager.ExecuteCommand C# (CSharp) Method

        public void ExecuteCommand(Command cmd)
        {
            if (disabledCommands > 0)
                return;

            //multirange ?
            if (cmd.ts.CurrentTB.Selection.ColumnSelectionMode)
            if (cmd is UndoableCommand)
                //make wrapper
                cmd = new MultiRangeCommand((UndoableCommand)cmd);

            if (cmd is UndoableCommand)
            {
                //if range is ColumnRange, then create wrapper
                (cmd as UndoableCommand).autoUndo = autoUndoCommands > 0;
                history.Push(cmd as UndoableCommand);
            }
            try
            {
                cmd.Execute();
            }
            catch (ArgumentOutOfRangeException)
            {
                //OnTextChanging cancels enter of the text
                if (cmd is UndoableCommand)
                    history.Pop();
            }
            //
            redoStack.Clear();
            //
            TextSource.CurrentTB.OnUndoRedoStateChanged();
        }