<?php
/**
 * Update content Type
 *
 * @param string $type content type
 * @param string $encoding
 * @name updateContentTypeFilter
 */
class My_PHPTAL_Filter_UpdateContentType implements PHPTAL_Filter {
         protected $contentType = '';
         protected $encoding = '';

         /**
          * Constructor
          *
          * @name __construct
          * @access public
          * @param  $type string
          */
         public function __construct($type, $encoding) {
              $this->contentType = $type;
              $this->encoding = $encoding;
         } // end __construct();

         /**
          * Method filter
          * This method
          *
          * @access public
          * @name filter
          * @param  $source
          * @return $source
          */
         public function filter($source) {
              $source = preg_replace ('@(<meta[^>]+"content-type"[^>]+content=")([^;]+)(;\s+?charset=)([^"]+)("[^"]+>)@i', "\\1{$this->contentType}\\3{$this->encoding}\\5", $source, 1);
              return $source;
         }
         } // end class updateContentTypeFilter ;
?>