/// <summary>
/// 处理结束标签
/// </summary>
/// <param name="endTag">结束标签信息</param>
/// <returns>相关的元素对象，若不支持则返回null</returns>
protected virtual IHtmlElement ProcessEndTag(HtmlEndTag endTag)
{
var tagName = endTag.TagName;
if (ContainerStack.OfType <IHtmlElement>().Select(e => e.Name).Contains(tagName, StringComparer.OrdinalIgnoreCase))
{
IHtmlElement element;
while (true)
{
element = ContainerStack.Pop() as IHtmlElement;
if (element.Name.EqualsIgnoreCase(tagName))
{
break;
}
}
return(element);
}
else
{
ProcessEndTagMissingBeginTag(endTag);
return(null);
}
//无需退出CData标签，读取器会自动退出
}
/// <summary>
/// 处理丢失了开始标签的结束标签
/// </summary>
/// <param name="endTag">结束标签信息</param>
protected virtual void ProcessEndTagMissingBeginTag(HtmlEndTag endTag)
{
//如果堆栈中没有对应的开始标签，则将这个结束标签解释为文本
CreateTextNode(endTag.Html);
}
/// <summary>
/// 处理丢失了开始标签的结束标签
/// </summary>
/// <param name="endTag">结束标签信息</param>
protected override void ProcessEndTagMissingBeginTag(HtmlEndTag endTag)
{
//忽略多出的结束标签
}
