Question

我尝试使用Xerces DOMDocument C ++ Parser加载HTML并搜索特定的HTML元素。我很难找到如何实现这一目标的好例子。我似乎发现的只是解析XML。有人可以帮忙吗？感谢。

Answer 1

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

DOMDocument也有一个例子：

// //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：

但是如何将HTML加载到DOMDocument中并搜索html元素？这就是我想弄清楚的事情。

XercesDOMParser解析器;

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

parser.setValidationScheme（XercesDOMParser :: Val_Always）;

处理程序处理程序;

parser.setErrorHandler（＆amp; handler）;

parser.parse（ “xmlfile.xml”）;

C ++ Xerces Parser加载HTML并搜索HTML元素

1 个答案: