Dump an HTML node, recursive behaviour,children are printed
           too, and formatting returns/spaces are added.

def htmlNodeDumpOutput(self, buf, cur, encoding):
        """Dump an HTML node, recursive behaviour,children are printed
           too, and formatting returns/spaces are added. """
        if buf is None: buf__o = None
        else: buf__o = buf._o
        if cur is None: cur__o = None
        else: cur__o = cur._o
        libxml2mod.htmlNodeDumpOutput(buf__o, self._o, cur__o, encoding)