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 <?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_Filter
  * @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    $Id$
  */
 
 /**
  * @see Zend_Filter_Compress_CompressInterface
  */
 // require_once 'Zend/Filter/Compress/CompressInterface.php';
 
 /**
  * Compression adapter for Lzf
  *
  * @category   Zend
  * @package    Zend_Filter
  * @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_Filter_Compress_Lzf implements Zend_Filter_Compress_CompressInterface
 {
     /**
      * Class constructor
      */
     public function __construct()
     {
         if (!extension_loaded('lzf')) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception('This filter needs the lzf extension');
         }
     }
 
     /**
      * Compresses the given content
      *
      * @param  string $content
      * @return string
      */
     public function compress($content)
     {
         $compressed = lzf_compress($content);
         if (!$compressed) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception('Error during compression');
         }
 
         return $compressed;
     }
 
     /**
      * Decompresses the given content
      *
      * @param  string $content
      * @return string
      */
     public function decompress($content)
     {
         $compressed = lzf_decompress($content);
         if (!$compressed) {
             // require_once 'Zend/Filter/Exception.php';
             throw new Zend_Filter_Exception('Error during compression');
         }
 
         return $compressed;
     }
 
     /**
      * Returns the adapter name
      *
      * @return string
      */
     public function toString()
     {
         return 'Lzf';
     }
 }