public HtmlParser(HtmlParsingHandlers handlers)
{
_handlers = handlers;
_tagStack = new List<HtmlTag>();
_htmlTagFlagsCache = new Dictionary<string, HtmlTagFlags>();
_customHtmlTagFlagsCache = new Dictionary<string, HtmlTagFlags>();
_conditionalCommentStack = new Stack<HtmlConditionalComment>();
_conditionalCommentOpened = false;
_xmlTagStack = new Stack<string>();
}