55     public static function isXml($text)  argument
60             new XmlDocument($text);
76     public static function format($text)  argument
78         if (empty($text)) {
82         $doc->loadXML($text);
96     public static function normalize($text)  argument
98         if (empty($text)) {
101         $xmlDoc = new XmlDocument($text, XmlDocument::XML_TYPE);
112     public static function extractTextWithoutCdata($text)  argument
114         $text = str_replace("/*<![CDATA[*/", "", $text);
115         $text = str_replace("/*!]]>*/", "", $text);
116         $text = str_replace("\/", "/", $text);
117         return $text;
120     public static function preprocessText($text)  argument