public static void Parse(this IParseAttributeToken_Parse element, string etag)
        {
            var Source = element.Context.Source;

            var element_start = Source.IndexOf("<" + etag);

            var attributes_start = Source.IndexOf(" ", element_start);

            var attibutes_end = Source.IndexOf(">", element_start);

            var tag = "";
            var element_fast_end = -1;

            if (attributes_start < attibutes_end)
            {
                if (attributes_start < 0)
                {
                    return;
                }


                tag = Source.Substring(element_start + 1, attributes_start - element_start - 1);

                // seek for attributes

                element.AttributeHandler.InternalParseAttributes(Source.Substring(attributes_start, attibutes_end - attributes_start));
                element_fast_end = Source.IndexOf("/>", attributes_start);
            }
            else
            {
                if (attibutes_end < 0)
                {
                    return;
                }

                tag = Source.Substring(element_start + 1, attibutes_end - element_start - 1);

                element_fast_end = Source.IndexOf("/>", attibutes_end);
                // seek for no attributes
            }

            var element_end = Source.IndexOf("</" + tag, attibutes_end);

            if (element_fast_end >= 0)
            {
                if (element_end < 0)
                {
                    return;
                }
            }

            // we are unable to find the closing tag
            // as we do not care about the content we could
            // just ignore this and return
            if (element.SetValue == null)
            {
                if (element_end < 0)
                {
                    return;
                }
            }

            var content = Source.Substring(attibutes_end + 1, element_end - attibutes_end - 1);

            element.SetValue(content);
        }
 public static void Parse(this IParseAttributeToken_Parse element)
 {
     Parse(element, "");
 }