Syntax
=====

.. code-block:: text

    function_table = DEFI_OBSTACLE (
        ◇ TYPE =/"CERCLE" (by default),
                 /"PLAN_Y ",
                 /"PLAN_Z ",
                 /"DISCRET ",
                 /"BI_CERCLE ",
                 /"BI_PLAN_Y ",
                 /"BI_PLAN_Z ",
                 /"BI_CERC_INT ",
        ◇ VALE = float,
        ◇ VERIF = text (default: "FERME "),
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices