Syntax
=====

.. code-block:: text

    subdue = INCLUDE_MATERIAU (
        ◆/NOM_AFNOR = text,
          /FICHIER = text,
        ◇ & TYPE_MODELE =/"REF ",
                          /"PAR ",
          & VARIANTE =/"A",
                       /"B",
                       /"C",
                       /"D",
                       /"E",
                       /"F",
                       /"G",
                       /"H",
                       /"I",
                       /"J",
                       /"K",
                       /"L",
                       /"M",
                       /"N",
                       /"O",
                       /"P",
                       /"Q",
                       /"R",
                       /"S",
                       /"T",
                       /"U",
                       /"V",
                       /"W",
                       /"X",
                       /"Y",
                       /"Z",
          & TYPE_VALE =/"NOMI ",
                        /"MINI ",
                        /"MAXI ",
        ◇ EXTRACTION = _F (
             ◆ COMPOR = text,
             ◆ TEMP_EVAL = float,
          ),
        ◇ UNITE_LONGUEUR =/"M" (by default),
                           /"MM",
        ◇ PROL_DROITE =/"CONSTANT ",
                        /"LINEAIRE ",
                        /"EXCLU" (by default),
        ◇ PROL_GAUCHE =/"CONSTANT ",
                        /"LINEAIRE ",
                        /"EXCLU" (by default),
        ◇ INFO =/1 (by default),
                 /2,
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices