$ gemmi cif2mtz --print-spec
# Each line in the spec contains four words:
# - tag (without category) from _refln or _diffrn_refln
# - MTZ column label
# - MTZ column type
# - MTZ dataset for the column (must be 0 or 1)
# The first 3 (5 in unmerged) columns are not in the spec,
# they are always H K L (M/ISYM BATCH).

# For MERGED data only. Use --print-spec --unmerged for unmerged.
pdbx_r_free_flag FreeR_flag I 0
status FreeR_flag s 0
intensity_meas IMEAN J 1
intensity_sigma SIGIMEAN Q 1
pdbx_I_plus I(+) K 1
pdbx_I_plus_sigma SIGI(+) M 1
pdbx_I_minus I(-) K 1
pdbx_I_minus_sigma SIGI(-) M 1
F_meas FP F 1
F_meas_au FP F 1
F_meas_sigma SIGFP Q 1
F_meas_sigma_au SIGFP Q 1
pdbx_F_plus F(+) G 1
pdbx_F_plus_sigma SIGF(+) L 1
pdbx_F_minus F(-) G 1
pdbx_F_minus_sigma SIGF(-) L 1
pdbx_anom_difference DP D 1
pdbx_anom_difference_sigma SIGDP Q 1
F_calc FC F 1
F_calc_au FC F 1
phase_calc PHIC P 1
fom FOM W 1
weight FOM W 1
pdbx_HL_A_iso HLA A 1
pdbx_HL_B_iso HLB A 1
pdbx_HL_C_iso HLC A 1
pdbx_HL_D_iso HLD A 1
pdbx_FWT FWT F 1
pdbx_PHWT PHWT P 1
pdbx_DELFWT DELFWT F 1
pdbx_DELPHWT DELPHWT P 1
