public function authors()
 {
     $oxymel = new Oxymel();
     $authors = $this->export->authors();
     foreach ($authors as $author) {
         $oxymel->tag('wp:author')->contains->tag('wp:author_id', $author->ID)->tag('wp:author_login', $author->user_login)->tag('wp:author_email', $author->user_email)->tag('wp:author_display_name')->contains->cdata($author->display_name)->end->tag('wp:author_first_name')->contains->cdata($author->user_firstname)->end->tag('wp:author_last_name')->contains->cdata($author->user_lastname)->end->end;
     }
     return $oxymel->to_string();
 }
 public function cdata($text)
 {
     if (!seems_utf8($text)) {
         $text = utf8_encode($text);
     }
     return parent::cdata($text);
 }
 function test_oxymel_ns()
 {
     $oxymel = new Oxymel();
     $oxymel->tag('wp:baba');
     $this->a('<wp:baba/>', $this->x->oxymel($oxymel));
 }