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   1  <?php
   2  
   3  // this MUST be placed in post, as it assumes that any value in dir is valid
   4  
   5  /**
   6   * Post-trasnform that ensures that bdo tags have the dir attribute set.
   7   */
   8  class HTMLPurifier_AttrTransform_BdoDir extends HTMLPurifier_AttrTransform
   9  {
  10  
  11      public function transform($attr, $config, $context) {
  12          if (isset($attr['dir'])) return $attr;
  13          $attr['dir'] = $config->get('Attr', 'DefaultTextDir');
  14          return $attr;
  15      }
  16  
  17  }
  18  
  19  // vim: et sw=4 sts=4