original_string: public function openCompoundFile($extension, $shareHandler = true)
      {
          if (($extension == '.fdx'  || $extension == '.fdt')  &&  $this->_usesSharedDocStore) {
              $fdxFName = $this->_sharedDocStoreOptions['segment'] . '.fdx';
              $fdtFName = $this->_sharedDocStoreOptions['segment'] . '.fdt';
  
              if (!$this->_sharedDocStoreOptions['isCompound']) {
                  $fdxFile = $this->_directory->getFileObject($fdxFName, $shareHandler);
                  $fdxFile->seek($this->_sharedDocStoreOptions['offset']*8, SEEK_CUR);
  
                  if ($extension == '.fdx') {
                      // '.fdx' file is requested
                      return $fdxFile;
                  } else {
                      // '.fdt' file is requested
                      $fdtStartOffset = $fdxFile->readLong();
  
                      $fdtFile = $this->_directory->getFileObject($fdtFName, $shareHandler);
                      $fdtFile->seek($fdtStartOffset, SEEK_CUR);
  
                      return $fdtFile;
                  }
              }
  
              if( !isset($this->_sharedDocStoreOptions['files'][$fdxFName]) ) {
                  require_once 'Zend/Search/Lucene/Exception.php';
                  throw new Zend_Search_Lucene_Exception('Shared doc storage segment compound file doesn\'t contain '
                                         . $fdxFName . ' file.' );
              }
              if( !isset($this->_sharedDocStoreOptions['files'][$fdtFName]) ) {
                  require_once 'Zend/Search/Lucene/Exception.php';
                  throw new Zend_Search_Lucene_Exception('Shared doc storage segment compound file doesn\'t contain '
                                         . $fdtFName . ' file.' );
              }
  
              // Open shared docstore segment file
              $cfxFile = $this->_directory->getFileObject($this->_sharedDocStoreOptions['segment'] . '.cfx', $shareHandler);
              // Seek to the start of '.fdx' file within compound file
              $cfxFile->seek($this->_sharedDocStoreOptions['files'][$fdxFName]);
              // Seek to the start of current segment documents section
              $cfxFile->seek($this->_sharedDocStoreOptions['offset']*8, SEEK_CUR);
  
              if ($extension == '.fdx') {
                  // '.fdx' file is requested
                  return $cfxFile;
              } else {
                  // '.fdt' file is requested
                  $fdtStartOffset = $cfxFile->readLong();
  
                  // Seek to the start of '.fdt' file within compound file
                  $cfxFile->seek($this->_sharedDocStoreOptions['files'][$fdtFName]);
                  // Seek to the start of current segment documents section
                  $cfxFile->seek($fdtStartOffset, SEEK_CUR);
  
                  return $fdtFile;
              }
          }
  
          $filename = $this->_name . $extension;
  
          if (!$this->_isCompound) {
              return $this->_directory->getFileObject($filename, $shareHandler);
          }
  
          if( !isset($this->_segFiles[$filename]) ) {
              require_once 'Zend/Search/Lucene/Exception.php';
              throw new Zend_Search_Lucene_Exception('Segment compound file doesn\'t contain '
                                         . $filename . ' file.' );
          }
  
          $file = $this->_directory->getFileObject($this->_name . '.cfs', $shareHandler);
          $file->seek($this->_segFiles[$filename]);
          return $file;
      }
code: public function openCompoundFile($extension, $shareHandler = true)
      {
          if (($extension == '.fdx'  || $extension == '.fdt')  &&  $this->_usesSharedDocStore) {
              $fdxFName = $this->_sharedDocStoreOptions['segment'] . '.fdx';
              $fdtFName = $this->_sharedDocStoreOptions['segment'] . '.fdt';
  
              if (!$this->_sharedDocStoreOptions['isCompound']) {
                  $fdxFile = $this->_directory->getFileObject($fdxFName, $shareHandler);
                  $fdxFile->seek($this->_sharedDocStoreOptions['offset']*8, SEEK_CUR);
  
                  if ($extension == '.fdx') {
                      // '.fdx' file is requested
                      return $fdxFile;
                  } else {
                      // '.fdt' file is requested
                      $fdtStartOffset = $fdxFile->readLong();
  
                      $fdtFile = $this->_directory->getFileObject($fdtFName, $shareHandler);
                      $fdtFile->seek($fdtStartOffset, SEEK_CUR);
  
                      return $fdtFile;
                  }
              }
  
              if( !isset($this->_sharedDocStoreOptions['files'][$fdxFName]) ) {
                  require_once 'Zend/Search/Lucene/Exception.php';
                  throw new Zend_Search_Lucene_Exception('Shared doc storage segment compound file doesn\'t contain '
                                         . $fdxFName . ' file.' );
              }
              if( !isset($this->_sharedDocStoreOptions['files'][$fdtFName]) ) {
                  require_once 'Zend/Search/Lucene/Exception.php';
                  throw new Zend_Search_Lucene_Exception('Shared doc storage segment compound file doesn\'t contain '
                                         . $fdtFName . ' file.' );
              }
  
              // Open shared docstore segment file
              $cfxFile = $this->_directory->getFileObject($this->_sharedDocStoreOptions['segment'] . '.cfx', $shareHandler);
              // Seek to the start of '.fdx' file within compound file
              $cfxFile->seek($this->_sharedDocStoreOptions['files'][$fdxFName]);
              // Seek to the start of current segment documents section
              $cfxFile->seek($this->_sharedDocStoreOptions['offset']*8, SEEK_CUR);
  
              if ($extension == '.fdx') {
                  // '.fdx' file is requested
                  return $cfxFile;
              } else {
                  // '.fdt' file is requested
                  $fdtStartOffset = $cfxFile->readLong();
  
                  // Seek to the start of '.fdt' file within compound file
                  $cfxFile->seek($this->_sharedDocStoreOptions['files'][$fdtFName]);
                  // Seek to the start of current segment documents section
                  $cfxFile->seek($fdtStartOffset, SEEK_CUR);
  
                  return $fdtFile;
              }
          }
  
          $filename = $this->_name . $extension;
  
          if (!$this->_isCompound) {
              return $this->_directory->getFileObject($filename, $shareHandler);
          }
  
          if( !isset($this->_segFiles[$filename]) ) {
              require_once 'Zend/Search/Lucene/Exception.php';
              throw new Zend_Search_Lucene_Exception('Segment compound file doesn\'t contain '
                                         . $filename . ' file.' );
          }
  
          $file = $this->_directory->getFileObject($this->_name . '.cfs', $shareHandler);
          $file->seek($this->_segFiles[$filename]);
          return $file;
      }
code_tokens: public function openCompoundFile ( $ extension , $ shareHandler = true ) { if ( ( $ extension == '.fdx' || $ extension == '.fdt' ) && $ this -> _usesSharedDocStore ) { $ fdxFName = $ this -> _sharedDocStoreOptions [ 'segment' ] . '.fdx' ; $ fdtFName = $ this -> _sharedDocStoreOptions [ 'segment' ] . '.fdt' ; if ( ! $ this -> _sharedDocStoreOptions [ 'isCompound' ] ) { $ fdxFile = $ this -> _directory -> getFileObject ( $ fdxFName , $ shareHandler ) ; $ fdxFile -> seek ( $ this -> _sharedDocStoreOptions [ 'offset' ] * 8 , SEEK_CUR ) ; if ( $ extension == '.fdx' ) { // '.fdx' file is requested return $ fdxFile ; } else { // '.fdt' file is requested $ fdtStartOffset = $ fdxFile -> readLong ( ) ; $ fdtFile = $ this -> _directory -> getFileObject ( $ fdtFName , $ shareHandler ) ; $ fdtFile -> seek ( $ fdtStartOffset , SEEK_CUR ) ; return $ fdtFile ; } } if ( ! isset ( $ this -> _sharedDocStoreOptions [ 'files' ] [ $ fdxFName ] ) ) { require_once 'Zend/Search/Lucene/Exception.php' ; throw new Zend_Search_Lucene_Exception ( 'Shared doc storage segment compound file doesn\'t contain ' . $ fdxFName . ' file.' ) ; } if ( ! isset ( $ this -> _sharedDocStoreOptions [ 'files' ] [ $ fdtFName ] ) ) { require_once 'Zend/Search/Lucene/Exception.php' ; throw new Zend_Search_Lucene_Exception ( 'Shared doc storage segment compound file doesn\'t contain ' . $ fdtFName . ' file.' ) ; } // Open shared docstore segment file $ cfxFile = $ this -> _directory -> getFileObject ( $ this -> _sharedDocStoreOptions [ 'segment' ] . '.cfx' , $ shareHandler ) ; // Seek to the start of '.fdx' file within compound file $ cfxFile -> seek ( $ this -> _sharedDocStoreOptions [ 'files' ] [ $ fdxFName ] ) ; // Seek to the start of current segment documents section $ cfxFile -> seek ( $ this -> _sharedDocStoreOptions [ 'offset' ] * 8 , SEEK_CUR ) ; if ( $ extension == '.fdx' ) { // '.fdx' file is requested return $ cfxFile ; } else { // '.fdt' file is requested $ fdtStartOffset = $ cfxFile -> readLong ( ) ; // Seek to the start of '.fdt' file within compound file $ cfxFile -> seek ( $ this -> _sharedDocStoreOptions [ 'files' ] [ $ fdtFName ] ) ; // Seek to the start of current segment documents section $ cfxFile -> seek ( $ fdtStartOffset , SEEK_CUR ) ; return $ fdtFile ; } } $ filename = $ this -> _name . $ extension ; if ( ! $ this -> _isCompound ) { return $ this -> _directory -> getFileObject ( $ filename , $ shareHandler ) ; } if ( ! isset ( $ this -> _segFiles [ $ filename ] ) ) { require_once 'Zend/Search/Lucene/Exception.php' ; throw new Zend_Search_Lucene_Exception ( 'Segment compound file doesn\'t contain ' . $ filename . ' file.' ) ; } $ file = $ this -> _directory -> getFileObject ( $ this -> _name . '.cfs' , $ shareHandler ) ; $ file -> seek ( $ this -> _segFiles [ $ filename ] ) ; return $ file ; }
docstring: Opens index file stoted within compound index file
  
  @param string $extension
  @param boolean $shareHandler
  @throws Zend_Search_Lucene_Exception
  @return Zend_Search_Lucene_Storage_File
docstring_tokens: Opens index file stoted within compound index file