protected string getPaperID(string paper_name)
{
string html_page = _HttpUtil.getPaperIDHTML(paper_name);
if (html_page == null || html_page == "")
{
return null;
}
Parser p = new Parser(new Lexer(html_page));
TagNameFilter tag_f = new TagNameFilter("A");
HasAttributeFilter attr_f = new HasAttributeFilter("target", "_blank");
HasChildFilter child_f = new HasChildFilter(new PaperFilter(paper_name));
AndFilter af = new AndFilter(tag_f,attr_f);
AndFilter aff = new AndFilter(af, child_f);
NodeList childs = p.ExtractAllNodesThatMatch(aff);
if (childs == null || childs.Count <= 0)
{
//Paper not found
return null;
}
//TODO Multi Paper found
INode node = childs[0];
if (node is ITag)
{
ITag t = node as ITag;
string href = t.GetAttribute("href");
if (href != null && href != "")
{
string [] sp = href.Split(new char[]{'/'});
return sp[sp.Length - 1].Split(new char[]{'.'})[0];
}
}
//Not Found
return null;
}
public List<ATag> ParseCatelog(string html)
{
List<ATag> atags = new List<ATag>();
Lexer lexer = new Lexer(html);
Parser parser = new Parser(lexer);
NodeFilter nav = new HasAttributeFilter("class", "fenlei_list");
NodeList navNodes = parser.Parse(nav);
NodeFilter catelog = new LinkRegexFilter(@"^\.\./product/index\.php\?cplm\=\-\d\d\d\-$");
catelog = new HasChildFilter(catelog);
NodeList catelogNodes = navNodes[0].Children.ExtractAllNodesThatMatch(catelog);
if(catelogNodes==null){
return atags;
}
int length = catelogNodes.Count;
for (int i=0;i<length;i++)
{
INode node = catelogNodes[i];
ATag a = node.Children[0] as ATag;
atags.Add(a);
}
return atags;
}