C++ Xerces解析器加载HTML和搜索HTML元素

Question

我试着使用Xerces DOM文档C++解析器加载HTML和搜索特定的HTML元素。我无法找到关于如何完成此操作的很好示例。我似乎找到的所有解析XML。有人可以协助吗？谢谢。

Answer 1

看看这个：http://xerces.apache.org/xerces-c/program-dom-3.html

没有与DOM文档的例子还有：

// //创建一个小文档树 //

{ 
    XMLCh tempStr[100]; 

    XMLString::transcode("Range", tempStr, 99); 
    DOMImplementation* impl = DOMImplementationRegistry::getDOMImplementation(tempStr, 0); 

    XMLString::transcode("root", tempStr, 99); 
    DOMDocument* doc = impl->createDocument(0, tempStr, 0); 
    DOMElement* root = doc->getDocumentElement(); 

    XMLString::transcode("FirstElement", tempStr, 99); 
    DOMElement* e1 = doc->createElement(tempStr); 
    root->appendChild(e1); 

    XMLString::transcode("SecondElement", tempStr, 99); 
    DOMElement* e2 = doc->createElement(tempStr); 
    root->appendChild(e2); 

    XMLString::transcode("aTextNode", tempStr, 99); 
    DOMText*  textNode = doc->createTextNode(tempStr); 
    e1->appendChild(textNode); 

    // optionally, call release() to release the resource associated with the range after done 
    DOMRange* range = doc->createRange(); 
    range->release(); 

    // removedElement is an orphaned node, optionally call release() to release associated resource 
    DOMElement* removedElement = root->removeChild(e2); 
    removedElement->release(); 

    // no need to release this returned object which is owned by implementation 
    XMLString::transcode("*", tempStr, 99); 
    DOMNodeList* nodeList = doc->getElementsByTagName(tempStr); 

    // done with the document, must call release() to release the entire document resources 
    doc->release(); 
}; 

..等等。

编辑：

但我怎么加载HTML到DOMDocument和搜索对html元素？这是什么林试图弄清楚。

XercesDOMParser解析器;

parser.loadGrammar（ “grammar.dtd”，语法:: DTDGrammarType）;

parser.setValidationScheme（XercesDOMParser :: Val_Always）;

处理程序处理程序;

parser.setErrorHandler（&处理程序）;

parser.parse（ “xmlfile.xml”）;