Syntax
=====

.. code-block:: text

    /dyna_harmo
    /meca_mode = MACRO_EXPANS (
        ◆ MODELE_CALCUL = _F (
             ◆ MODELE = model,
             ◆ BASE = meca fashion,
             ◇ NUME_MODE = int,
             ◇ NUME_ORDRE = int,
          ),
        ◆ MODELE_MESURE = _F (
             ◆ MODELE = model,
             ◆ MESURE = mode_meca_c/dyna_trans/dyna_harmo/mode_meca,
             ◇ NOM_CHAM =/"DEPL" (by default),
                          /"VITE ",
                          /"ACCE ",
                          /"SIEF_NOEU ",
                          /"EPSI_NOEU ",
             ◇ NUME_MODE = int,
             ◇ NUME_ORDRE = int,
          ),
        ◇ NUME_DDL = nume_ddl,
        ◇ RESU_NX = co/dyna_harmo/mode_meca,
        ◇ RESU_EX = co/dyna_harmo/mode_meca,
        ◇ RESU_ET = co/dyna_harmo/mode_meca,
        ◇ RESU_RD = co/dyna_harmo/mode_meca,
        ◇ RESOLUTION = _F (
             ◇ METHODE =/"LU" (by default),
                         /"SVD ",
             # If: equal_to (" METHODE ", 'SVD')
                 ◇ EPS = float,
             ◇ REGUL =/"NON" (by default),
                       /"NORM_MIN ",
                       /"TIK_RELA ",
             # If: not equal_to (" REGUL ", 'NON')
                 ◇/COEF_PONDER = float,
                   /COEF_PONDER_F = formula/tablecloth/function,
          ),
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices