Syntax
=====

.. code-block:: text

    field_no = ASSE_VECTEUR (
        ◆ VECT_ELEM = vect_elem,
        ◆ NUME_DDL = nume_ddl,
        ◇ INFO =/1 (by default),
                 /2,
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices