9 protected $caches = array(
'Serializer' => array());
23 public static function instance($prototype = null) {
25 if ($prototype !== null) {
26 $instance = $prototype;
27 } elseif ($instance === null || $prototype ===
true) {
39 public function register($short, $long) {
40 $this->implementations[$short] = $long;
57 isset($this->implementations[
$method]) &&
58 class_exists($class = $this->implementations[$method],
false)
60 $cache =
new $class($type);
62 if ($method !=
'Serializer') {
63 trigger_error(
"Unrecognized DefinitionCache $method, using Serializer instead", E_USER_WARNING);
67 foreach ($this->decorators as $decorator) {
68 $new_cache = $decorator->decorate($cache);
82 if (is_string($decorator)) {
83 $class =
"HTMLPurifier_DefinitionCache_Decorator_$decorator";
84 $decorator =
new $class;
86 $this->decorators[$decorator->name] = $decorator;