def _parse_epsilon(line, lines):
    """Parse Energy [eV] Re_eps_xx     Im_eps_xx     Re_eps_zz     Im_eps_zz"""
    split_line = line.split()
    energy = float(split_line[0])
    re_eps_xx = float(split_line[1])
    im_eps_xx = float(split_line[2])
    re_eps_zz = float(split_line[3])
    im_eps_zz = float(split_line[4])
    return {'energy': energy, 're_eps_xx': re_eps_xx, 'im_eps_xx':
        im_eps_xx, 're_eps_zz': re_eps_zz, 'im_eps_zz': im_eps_zz}
