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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      /**
  12       * @param array $attr
  13       * @param HTMLPurifier_Config $config
  14       * @param HTMLPurifier_Context $context
  15       * @return array
  16       */
  17      public function transform($attr, $config, $context)
  18      {
  19          if (isset($attr['dir'])) {
  20              return $attr;
  21          }
  22          $attr['dir'] = $config->get('Attr.DefaultTextDir');
  23          return $attr;
  24      }
  25  }
  26  
  27  // vim: et sw=4 sts=4