def _nbytes_full(fmt, nlines):
 return (((fmt.repeat * fmt.width) + 1) * (nlines - 1))

def _nbytes_full ( fmt , nlines ) : return ( ( ( fmt . repeat * fmt . width ) + 1 ) * ( nlines - 1 ) )
return the number of bytes to read to get every full lines for the given parsed fortran format .