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   1  <?php
   2  
   3  /**
   4   * Special-case enum attribute definition that lazy loads allowed frame targets
   5   */
   6  class HTMLPurifier_AttrDef_HTML_FrameTarget extends HTMLPurifier_AttrDef_Enum
   7  {
   8  
   9      public $valid_values = false; // uninitialized value
  10      protected $case_sensitive = false;
  11  
  12      public function __construct() {}
  13  
  14      public function validate($string, $config, $context) {
  15          if ($this->valid_values === false) $this->valid_values = $config->get('Attr', 'AllowedFrameTargets');
  16          return parent::validate($string, $config, $context);
  17      }
  18  
  19  }
  20  
  21  // vim: et sw=4 sts=4