По вашей ссылке можно найти пример использования:
Using htmlcxx is quite simple. Take a look
at this example.
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#include <htmlcxx/html/ParserDom.h>
...
using namespace std;
using namespace htmlcxx;
//Parse some html code
string html = "<html><body>hey</body></html>";
HTML::ParserDom parser;
tree<HTML::Node> dom = parser.parseTree(html);
//Print whole DOM tree
cout << dom << endl;
//Dump all links in the tree
tree<HTML::Node>::iterator it = dom.begin();
tree<HTML::Node>::iterator end = dom.end();
for (; it != end; ++it)
{
if (strcasecmp(it->tagName().c_str(), "A") == 0)
{
it->parseAttributes();
cout << it->attribute("href").second << endl;
}
}
//Dump all text of the document
it = dom.begin();
end = dom.end();
for (; it != end; ++it)
{
if ((!it->isTag()) && (!it->isComment()))
{
cout << it->text();
}
}
cout << endl;
