StringReplacementFilterFactory.php

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<?php

/*
 * This file is part of SwiftMailer.
 * (c) 2004-2009 Chris Corbyn
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

//@require 'Swift/StreamFilters/StringReplacementFilter.php';
//@require 'Swift/StreamFilterFactory.php';

class Swift_StreamFilters_StringReplacementFilterFactory
  implements Swift_ReplacementFilterFactory
{
  
  private $_filters = array();
  
  public function createFilter($search, $replace)
  {
    if (!isset($this->_filters[$search][$replace]))
    {
      if (!isset($this->_filters[$search]))
      {
        $this->_filters[$search] = array();
      }
      
      if (!isset($this->_filters[$search][$replace]))
      {
        $this->_filters[$search][$replace] = array();
      }
      
      $this->_filters[$search][$replace]
        = new Swift_StreamFilters_StringReplacementFilter($search, $replace);
    }
    
    return $this->_filters[$search][$replace];
  }
  
}