private function init_parser()
{
$this->depth = -1;
$this->parser = xml_parser_create_ns("UTF-8", $this->delimiter);
xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($this->parser, XML_OPTION_SKIP_WHITE, 1);
xml_parser_set_option($this->parser, XML_OPTION_TARGET_ENCODING, "UTF-8");
xml_set_character_data_handler($this->parser, array(&$this, "handle_character"));
xml_set_element_handler($this->parser, array(&$this, "handle_start_tag"), array(&$this, "handle_end_tag"));
}