Syntaxe
=======

.. code-block:: text

    cabl_precont = DEFI_CABLE_BP(
        ◆ MODELE = modele,
        ◆ CHAM_MATER = cham_mater,
        ◆ CARA_ELEM = cara_elem,
        ◆ GROUP_MA_BETON = grma,
        ◆ TYPE_ANCRAGE = / "ACTIF",
                         / "PASSIF",
        ◇ ADHERENT = / "OUI" (par défaut),
                     / "NON",
        # Si: (equal_to("ADHERENT", 'OUI'))
            ◆ / DEFI_CABLE = _F(
                   ◇ / GROUP_MA = grma,
                     / | TABL_CABLE = table,
                       | GROUP_NO_ANCRAGE = grno,
                ),
              / MODI_CABLE_RUPT = _F(
                   ◆ GROUP_MA = grma,
                   ◆ GROUP_NO_ANCRAGE = grno,
                   ◆ TENSION = table,
                ),
            ◇ TYPE_RELAX = / "SANS" (par défaut),
                           / "BPEL",
                           / "ETCC_DIRECT",
                           / "ETCC_REPRISE",
            # Si: equal_to("TYPE_RELAX", 'BPEL')
                ◆ R_J = float,
            # Si: equal_to("TYPE_RELAX", 'ETCC_DIRECT')
                ◆ NBH_RELAX = float,
            # Si: equal_to("TYPE_RELAX", 'ETCC_REPRISE')
                ◇ MODI_CABLE_ETCC = _F(
                     ◆ GROUP_MA = grma,
                     ◆ GROUP_NO_ANCRAGE = grno,
                     ◆ TENSION = table,
                  ),
                ◆ NBH_RELAX = float,
            ◇ CONE = _F(
                 ◆ RAYON = float,
                 ◆ LONGUEUR = float,
                 ◆ PRESENT = / "OUI",
                             / "NON",
              ),
        # Si: (not exists("MODI_CABLE_RUPT"))
            ◆ TENSION_INIT = float,
            ◆ RECUL_ANCRAGE = float,
        # Si: (equal_to("ADHERENT", 'NON'))
            ◆ DEFI_CABLE = _F(
                 ◆ GROUP_MA = grma,
                 ◆ GROUP_NO_ANCRAGE = grno,
              ),
        ◇ TITRE = text,
        ◇ INFO = / 1 (par défaut),
                 / 2,
    )
    
    ◆ : obligatoire
    ◇ : optionnel
    ⟐ : présent par défaut
    & : ensemble
    / : un seul parmi
    | : plusieurs choix possibles