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   1  <?php
   2  
   3  /**
   4   * Supertype for classes that define a strategy for modifying/purifying tokens.
   5   *
   6   * While HTMLPurifier's core purpose is fixing HTML into something proper,
   7   * strategies provide plug points for extra configuration or even extra
   8   * features, such as custom tags, custom parsing of text, etc.
   9   */
  10  
  11  
  12  abstract class HTMLPurifier_Strategy
  13  {
  14  
  15      /**
  16       * Executes the strategy on the tokens.
  17       *
  18       * @param $tokens Array of HTMLPurifier_Token objects to be operated on.
  19       * @param $config Configuration options
  20       * @returns Processed array of token objects.
  21       */
  22      abstract public function execute($tokens, $config, $context);
  23  
  24  }
  25  
  26  // vim: et sw=4 sts=4