[Summary view] [Print] [Text view]

   1  <?php
   2  /**
   3   * Copyright 2011-2014 Horde LLC (http://www.horde.org/)
   4   *
   5   * See the enclosed file COPYING 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 2011-2014 Horde LLC
  10   * @license   http://www.horde.org/licenses/lgpl21 LGPL 2.1
  11   * @package   Imap_Client
  12   */
  13  
  14  /**
  15   * Wrapper around Ids object that correctly handles POP3 UID strings.
  16   *
  17   * @author    Michael Slusarz <slusarz@horde.org>
  18   * @category  Horde
  19   * @copyright 2011-2014 Horde LLC
  20   * @license   http://www.horde.org/licenses/lgpl21 LGPL 2.1
  21   * @package   Imap_Client
  22   */
  23  class Horde_Imap_Client_Ids_Pop3 extends Horde_Imap_Client_Ids
  24  {
  25      /**
  26       * Create a POP3 message sequence string.
  27       *
  28       * Index Format: UID1[SPACE]UID2...
  29       *
  30       * @param boolean $sort  Not used in this class.
  31       *
  32       * @return string  The POP3 message sequence string.
  33       */
  34      protected function _toSequenceString($sort = true)
  35      {
  36          /* Use space as delimiter as it is the only printable ASCII character
  37           * that is not allowed as part of the UID (RFC 1939 [7]). */
  38          return implode(' ', count($this->_ids) > 25000 ? array_unique($this->_ids) : array_keys(array_flip($this->_ids)));
  39      }
  40  
  41      /**
  42       * Parse a POP3 message sequence string into a list of indices.
  43       *
  44       * @param string $str  The POP3 message sequence string.
  45       *
  46       * @return array  An array of UIDs.
  47       */
  48      protected function _fromSequenceString($str)
  49      {
  50          return explode(' ', trim($str));
  51      }
  52  
  53  }