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   1  <?php
   2  /**
   3   * Zend Framework
   4   *
   5   * LICENSE
   6   *
   7   * This source file is subject to the new BSD license that is bundled
   8   * with this package in the file LICENSE.txt.
   9   * It is also available through the world-wide-web at this URL:
  10   * http://framework.zend.com/license/new-bsd
  11   * If you did not receive a copy of the license and are unable to
  12   * obtain it through the world-wide-web, please send an email
  13   * to [email protected] so we can send you a copy immediately.
  14   *
  15   * @category   Zend
  16   * @package    Zend_Validate
  17   * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  18   * @license    http://framework.zend.com/license/new-bsd     New BSD License
  19   * @version    $Id$
  20   */
  21  
  22  /**
  23   * @see Zend_Validate_Barcode_AdapterAbstract
  24   */
  25  require_once 'Zend/Validate/Barcode/AdapterAbstract.php';
  26  
  27  /**
  28   * @category   Zend
  29   * @package    Zend_Validate
  30   * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
  31   * @license    http://framework.zend.com/license/new-bsd     New BSD License
  32   */
  33  class Zend_Validate_Barcode_Upce extends Zend_Validate_Barcode_AdapterAbstract
  34  {
  35      /**
  36       * Allowed barcode lengths
  37       * @var integer
  38       */
  39      protected $_length = array(6, 7, 8);
  40  
  41      /**
  42       * Allowed barcode characters
  43       * @var string
  44       */
  45      protected $_characters = '0123456789';
  46  
  47      /**
  48       * Checksum function
  49       * @var string
  50       */
  51      protected $_checksum = '_gtin';
  52  
  53      /**
  54       * Overrides parent checkLength
  55       *
  56       * @param string $value Value
  57       * @return boolean
  58       */
  59      public function checkLength($value)
  60      {
  61          if (strlen($value) != 8) {
  62              $this->setCheck(false);
  63          } else {
  64              $this->setCheck(true);
  65          }
  66  
  67          return parent::checkLength($value);
  68      }
  69  }