Syntax
=====

.. code-block:: text

    /dyna_trans
    /dyna_harmo
    /evol_noli
    /meca_mode = REST_SOUS_STRUC (
        ◆/RESULTAT = evol_noli/dyna_trans/mode_meca,
          /RESU_GENE = mode_gene/tran_gene/harm_gene/mode_cycle,
        ◆/SQUELETTE = skeleton,
        ◇ NUME_DDL = nume_ddl,
        ◇ MODE_MECA = meca fashion,
        ◇/TOUT_ORDRE = "OUI" (or not specified),
          /NUME_ORDRE = int,
          /INST = float,
          /LIST_INST = listr8,
          /TOUT_INST = "OUI" (or not specified),
          /NUME_MODE = int,
          /FREQ = float,
          /LIST_FREQ = listr8,
        ◇ CRITERE =/"ABSOLU ",
                    /"RELATIF" (by default),
        # If: (equal_to (" CRITERE ", 'RELATIF'))
            ◇ PRECISION = float (default: 1e-06),
        # If: (equal_to (" CRITERE ", 'ABSOLU'))
            ◆ PRECISION = float,
        ◇ INTERPOL =/"NON" (by default),
                     /"LIN ",
        ◇ TOUT_CHAM = "OUI" (or not specified),
        # If: not exists (" TOUT_CHAM ")
            ◇ NOM_CHAM =/"DEPL ",
                         /"VITE ",
                         /"ACCE" (by default),
                         /"ACCE_ABSOLU ",
                         /"EFGE_ELNO ",
                         /"SIPO_ELNO ",
                         /"SIGM_ELNO ",
                         /"FORC_NODA ",
        ◇/GROUP_NO = grno,
        ◇ GROUP_MA = Grma,
        ◇ CYCLIQUE = _F (
             ◇ NB_SECTEUR = int,
             ◇ NUME_DIAMETRE = int,
             ◇ RESULTAT2 = evol_char/dyna_trans/evol_noli/evol_elas/mode_meca,
          ),
          /SOUS_STRUC = text,
          /SECTEUR = int,
        ◇ TITRE = text,
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices