/// <summary>
/// 调用此方法通知预热 JumonyParser
/// </summary>
public static void WarmUp()
{
if (!_isWarmedUp)
{
JumonyReader.WarmUp();
HtmlSpecification.WarmUp();
_isWarmedUp = true;
}
}
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>
/// 查找指定元素的结束标签（用于CData元素结束位置查找）
/// </summary>
/// <param name="index">查找的开始位置</param>
/// <param name="elementName">元素名称</param>
/// <returns>找到的结束标签，若已到达文档末尾，则返回 null</returns>
protected virtual HtmlEndTag FindEndTag(int index, string elementName)
{
Regex endTagRegex = HtmlSpecification.GetEndTagRegex(elementName);
var endTagMatch = endTagRegex.Match(HtmlText, index);
if (!endTagMatch.Success)
{
return(null);
}
return(new HtmlEndTag(CreateFragment(endTagMatch), elementName));
}
/// <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));
}
/// <summary>
/// 转换容器中所有 URI 与当前请求匹配。
/// </summary>
/// <param name="container">确定要转换 URI 范围的容器</param>
protected virtual void ResolveUri(IHtmlContainer container)
{
foreach (var attribute in container.Descendants().SelectMany(e => e.Attributes()).Where(a => HtmlSpecification.IsUriValue(a)).ToArray())
{
ResolveUri(attribute);
}
}
