12     public $elements = array();  variable in HTMLPurifier_ChildDef_Required
21      * @param array|string $elements List of allowed element names (lowercase).
23     public function __construct($elements)  argument
25         if (is_string($elements)) {
26             $elements = str_replace(' ', '', $elements);
27             $elements = explode('|', $elements);
29         $keys = array_keys($elements);
31             $elements = array_flip($elements);
32             foreach ($elements as $i => $x) {
33                 $elements[$i] = true;
35                     unset($elements[$i]);
39         $this->elements = $elements;
74         $pcdata_allowed = isset($this->elements['#PCDATA']);
88             if (!isset($this->elements[$node->name])) {