Dump an HTML node, recursive behaviour,children are printed
           too.

def htmlNodeDumpFormatOutput(self, doc, cur, encoding, format):
        """Dump an HTML node, recursive behaviour,children are printed
           too. """
        if doc is None: doc__o = None
        else: doc__o = doc._o
        if cur is None: cur__o = None
        else: cur__o = cur._o
        libxml2mod.htmlNodeDumpFormatOutput(self._o, doc__o, cur__o, encoding, format)