def _read_tagdesc(f):
 tagdesc = {'offset': _read_long(f)}
 if (tagdesc['offset'] == (-1)):
  tagdesc['offset'] = _read_uint64(f)
 tagdesc['typecode'] = _read_long(f)
 tagflags = _read_long(f)
 tagdesc['array'] = ((tagflags & 4) == 4)
 tagdesc['structure'] = ((tagflags & 32) == 32)
 tagdesc['scalar'] = (tagdesc['typecode'] in DTYPE_DICT)
 return tagdesc

def _read_tagdesc ( f ) : tagdesc = { 'offset' : _read_long ( f ) } if ( tagdesc [ 'offset' ] == ( - 1 ) ) : tagdesc [ 'offset' ] = _read_uint64 ( f ) tagdesc [ 'typecode' ] = _read_long ( f ) tagflags = _read_long ( f ) tagdesc [ 'array' ] = ( ( tagflags & 4 ) == 4 ) tagdesc [ 'structure' ] = ( ( tagflags & 32 ) == 32 ) tagdesc [ 'scalar' ] = ( tagdesc [ 'typecode' ] in DTYPE_DICT ) return tagdesc
function to read in a tag descriptor .