Syntax
=====

.. code-block:: text

    IMPR_MACR_ELEM (
        ◆ MACR_ELEM_DYNA = macr_elem_dyna,
        ◇ FORMAT =/"MISS_3D ",
                   /"IDEAS" (by default),
        # If: equal_to (" FORMAT ", 'IDEAS')
            ◇ UNITE = unit (default: 30),
            ◇ VERSION = 5,
        # If: equal_to (" FORMAT ", 'MISS_3D')
            ◇ UNITE = unit (default: 26),
            ◇ SOUS_TITRE = text,
            ◇/AMOR_REDUIT = float,
              /LIST_AMOR = listr8,
            ◆ GROUP_MA_INTERF = GRMA,
            ◇ GROUP_MA_FLU_STR = Grma,
            ◇ GROUP_MA_FLU_SOL = Grma,
            ◇ GROUP_MA_SOL_SOL = Grma,
            ◇ GROUP_MA_CONTROL = Grma,
            ◇ FORMAT_R =/"1 PE12 .5" (by default),
                         /"1 PE16 .9",
            ◇ IMPR_MODE_MECA =/"OUI" (by default),
                               /"NON ",
            ◇ IMPR_MODE_STAT =/"OUI" (by default),
                               /"NON ",
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices