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   1  <?php
   2  /**
   3   * Copyright 2012-2017 Horde LLC (http://www.horde.org/)
   4   *
   5   * See the enclosed file LICENSE for license information (LGPL). If you
   6   * did not receive this file, see http://www.horde.org/licenses/lgpl21.
   7   *
   8   * @category  Horde
   9   * @copyright 2012-2017 Horde LLC
  10   * @license   http://www.horde.org/licenses/lgpl21 LGPL 2.1
  11   * @package   Imap_Client
  12   */
  13  
  14  /**
  15   * Object representation of an IMAP NIL (RFC 3501 [4.5]).
  16   *
  17   * @author    Michael Slusarz <slusarz@horde.org>
  18   * @category  Horde
  19   * @copyright 2012-2017 Horde LLC
  20   * @license   http://www.horde.org/licenses/lgpl21 LGPL 2.1
  21   * @package   Imap_Client
  22   */
  23  class Horde_Imap_Client_Data_Format_Nil extends Horde_Imap_Client_Data_Format
  24  {
  25      /**
  26       */
  27      public function __construct($data = null)
  28      {
  29          // Don't store any data in object.
  30      }
  31  
  32      /**
  33       */
  34      public function __toString()
  35      {
  36          return '';
  37      }
  38  
  39      /**
  40       */
  41      public function escape()
  42      {
  43          return 'NIL';
  44      }
  45  
  46  }