File indexing completed on 2024-06-23 05:55:33

 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Pdf
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 
 
 /** Zend_Pdf_Element_String */
 // require_once 'Zend/Pdf/Element/String.php';
 
 
 /**
  * PDF file 'binary string' element implementation
  *
  * @category   Zend
  * @package    Zend_Pdf
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_Pdf_Element_String_Binary extends Zend_Pdf_Element_String
 {
     /**
      * Object value
      *
      * @var string
      */
     public $value;
 
 
     /**
      * Escape string according to the PDF rules
      *
      * @param string $inStr
      * @return string
      */
     public static function escape($inStr)
     {
         return strtoupper(bin2hex($inStr));
     }
 
 
     /**
      * Unescape string according to the PDF rules
      *
      * @param string $inStr
      * @return string
      */
     public static function unescape($inStr)
     {
         $chunks = array();
         $offset = 0;
         $length = 0;
         while ($offset < strlen($inStr)) {
             // Collect hexadecimal characters
             $start = $offset;
             $offset += strspn($inStr, "0123456789abcdefABCDEF", $offset);
             $chunks[] = substr($inStr, $start, $offset - $start);
             $length += strlen(end($chunks));
 
             // Skip non-hexadecimal characters
             $offset += strcspn($inStr, "0123456789abcdefABCDEF", $offset);
         }
         if ($length % 2 != 0) {
             // We have odd number of digits.
             // Final digit is assumed to be '0'
             $chunks[] = '0';
         }
 
         return pack('H*' , implode($chunks));
     }
 
 
     /**
      * Return object as string
      *
      * @param Zend_Pdf_Factory $factory
      * @return string
      */
     public function toString($factory = null)
     {
         return '<' . self::escape((string)$this->value) . '>';
     }
 }