original_string: public function close()
      {
          if ($this->_docCount == 0) {
              return null;
          }
  
          $this->_dumpFNM();
          $this->_generateCFS();
  
          /**
   * Zend_Search_Lucene_Index_SegmentInfo 
  */
          include_once 'Zend/Search/Lucene/Index/SegmentInfo.php';
  
          return new Zend_Search_Lucene_Index_SegmentInfo(
              $this->_directory,
              $this->_name,
              $this->_docCount,
              -1,
              null,
              true,
              true
          );
      }
code: public function close()
      {
          if ($this->_docCount == 0) {
              return null;
          }
  
          $this->_dumpFNM();
          $this->_generateCFS();
  
          /**
   * Zend_Search_Lucene_Index_SegmentInfo 
  */
          include_once 'Zend/Search/Lucene/Index/SegmentInfo.php';
  
          return new Zend_Search_Lucene_Index_SegmentInfo(
              $this->_directory,
              $this->_name,
              $this->_docCount,
              -1,
              null,
              true,
              true
          );
      }
code_tokens: public function close ( ) { if ( $ this -> _docCount == 0 ) { return null ; } $ this -> _dumpFNM ( ) ; $ this -> _generateCFS ( ) ; /**
   * Zend_Search_Lucene_Index_SegmentInfo 
  */ include_once 'Zend/Search/Lucene/Index/SegmentInfo.php' ; return new Zend_Search_Lucene_Index_SegmentInfo ( $ this -> _directory , $ this -> _name , $ this -> _docCount , - 1 , null , true , true ) ; }
docstring: Close segment, write it to disk and return segment info
  
  @return Zend_Search_Lucene_Index_SegmentInfo
docstring_tokens: Close segment write it to disk and return segment info