WpfRichText.Ex.XamlToHtmlParser.CssStylesheet.MatchSelectorLevel C# (CSharp) Method

        private bool MatchSelectorLevel(string selectorLevel, XmlElement xmlElement)
        {
            if (selectorLevel.Length == 0)
            {
                return false;
            }

            int indexOfDot = selectorLevel.IndexOf('.');
            int indexOfPound = selectorLevel.IndexOf('#');

            string selectorClass = null;
            string selectorId = null;
            string selectorTag = null;
            if (indexOfDot >= 0)
            {
                if (indexOfDot > 0)
                {
                    selectorTag = selectorLevel.Substring(0, indexOfDot);
                }
                selectorClass = selectorLevel.Substring(indexOfDot + 1);
            }
            else if (indexOfPound >= 0)
            {
                if (indexOfPound > 0)
                {
                    selectorTag = selectorLevel.Substring(0, indexOfPound);
                }
                selectorId = selectorLevel.Substring(indexOfPound + 1);
            }
            else
            {
                selectorTag = selectorLevel;
            }

            if (selectorTag != null && selectorTag != xmlElement.LocalName)
            {
                return false;
            }

            if (selectorId != null && HtmlToXamlConverter.GetAttribute(xmlElement, "id") != selectorId)
            {
                return false;
            }

            if (selectorClass != null && HtmlToXamlConverter.GetAttribute(xmlElement, "class") != selectorClass)
            {
                return false;
            }

            return true;
        }