private void ProcessBeginTag(Match match)
{
string tagName = match.Groups["tagName"].Value;
bool selfClosed = match.Groups["selfClosed"].Success;
if (HtmlSpecification.selfCloseTags.Contains(tagName, StringComparer.OrdinalIgnoreCase))
{
selfClosed = true;
}
//检查父标签是否可选结束标记，并相应处理
{
var element = containerStack.Peek() as DomElement;
if (element != null && HtmlSpecification.optionalCloseTags.Contains(element.Name, StringComparer.OrdinalIgnoreCase))
{
if (HtmlSpecification.ImmediatelyClose(element.Name, tagName))
{
containerStack.Pop();
}
}
}
//处理所有属性
var attributes = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
foreach (Capture capture in match.Groups["attribute"].Captures)
{
string name = capture.FindCaptures(match.Groups["attrName"]).Single().Value;
string value = capture.FindCaptures(match.Groups["attrValue"]).Select(c => c.Value).SingleOrDefault();
value = HtmlEncoding.HtmlDecode(value);
if (attributes.ContainsKey(name))
{
continue;
}
attributes.Add(name, value);
}
//加入容器堆栈。
{
var element = CreateElement(tagName, attributes);
if (!selfClosed)
{
containerStack.Push(element);
}
}
}
/// <summary>
/// 检查当前开放的可选结束标签是否必须立即关闭
/// </summary>
/// <param name="tagName">分析器遇到的标签</param>
/// <param name="element">当前开放的可选结束标签</param>
/// <returns></returns>
protected virtual bool ImmediatelyClose(string tagName, IHtmlElement element)
{
return(HtmlSpecification.ImmediatelyClose(element.Name, tagName));
}
