private async void Window_Loaded(object sender, RoutedEventArgs e)
        {
            var converter  = new AssToRTF();
            var text       = @"{\fn微軟雅黑}{\t(\r(36,74),10)}{\fs24\b1}内容";
            var result     = converter.Divide(@"{\fn微軟雅黑}{\t(\r(36,74),10)}{\fs24\b1}内容");
            var linqresult = from u in result where u[0] == AssToRTF.SECTION_CMD select u;

            for (var i = 0; i < linqresult.Count(); i++)
            {
            }
        }
        public TextEditor()
        {
            InitializeComponent();

            var converter = new AssToRTF();
            var intext    = @"{\fn微軟雅黑}{\t(\r(36,74),10)}{\fs24\b1}内容";
            var textRange = new TextRange(text.Document.ContentStart, text.Document.ContentEnd);
            var endPoint  = text.Document.ContentEnd;
            var result    = converter.Divide(intext);

            foreach (var section in result)
            {
                switch (section[0])
                {
                case AssToRTF.SECTION_CMD:
                    var lastLetter = section[1] + 1;
                    for (var i = section[1] + 1; i <= section[2]; i++)
                    {
                        var @char = intext[i];
                        if ((@char >= 'a' && @char <= 'z') || (@char >= 'A' && @char <= 'Z'))
                        {
                            lastLetter = i;
                        }
                        else
                        {
                            break;
                        }
                    }
                    var start = textRange.Start.GetPositionAtOffset(section[1], LogicalDirection.Forward);
                    var end   = start.GetPositionAtOffset(1, LogicalDirection.Forward);
                    text.Selection.Select(start, end);
                    text.Selection.ApplyPropertyValue(TextElement.ForegroundProperty, new SolidColorBrush(Color.FromRgb(0xEF, 0x34, 0x56)));
                    break;
                }
            }

            //var input = @"{\rtf1\ansi\ansicpg950\deff0\fs24\b \'b7\'73\'b2\'d3\'a9\'fa\'c5\'e9 \b0\iItalic\i0\ul UnderLine \ulnone\strike StrikeLine \strike0\fs36 BigFont \fs24}";
            //var ms = new MemoryStream(Encoding.UTF8.GetBytes(input));
            //text.SelectAll();
            //text.Selection.Load(ms, DataFormats.Rtf);
        }