Syntax
=====

.. code-block:: text

    table = POST_GENE_PHYS (
        ◆ RESU_GENE = tran_gene/harm_gene,
        ◇ MODE_MECA = meca fashion,
        ◆ OBSERVATION = _F (
             ◇ NOM_CHAM =/"DEPL" (by default),
                          /"VITE ",
                          /"ACCE ",
                          /"DEPL_ABSOLU ",
                          /"VITE_ABSOLU ",
                          /"ACCE_ABSOLU ",
                          /"FORC_NODA ",
                          /"EFGE_ELNO ",
                          /"SIPO_ELNO ",
                          /"SIGM_ELNO ",
                          /"EFGE_ELGA ",
                          /"SIGM_ELGA ",
             ◇ NOM_CMP = text,
             ◇/INST = float,
               /LIST_INST = listr8,
               /TOUT_INST = "OUI" (or not specified),
               /NUME_ORDRE = int,
               /TOUT_ORDRE = "OUI" (or not specified),
               /FREQ = float,
               /LIST_FREQ = listr8,
             # If: (exists (" INST ")) or (exists (" LIST_INST ")) or (exists (" FREQ ")) or (exists (" LIST_FREQ "))
                 ◇ CRITERE =/"ABSOLU ",
                             /"RELATIF" (by default),
                 # If: (equal_to (" CRITERE ", 'RELATIF'))
                     ◇ PRECISION = float (default: 1e-06),
                 # If: (equal_to (" CRITERE ", 'ABSOLU'))
                     ◆ PRECISION = float,
             ◆ | GROUP_NO = group,
               | GROUP_MA = grma,
             # If: (equal_to (" NOM_CHAM ", 'ACCE_ABSOLU'))
                 ◇ & ACCE_MONO_APPUI = formula/sheet/function,
                   & DIRECTION = float,
          ),
        ◇ TITRE = text,
    )
    
    ◆: mandatory
    ◇: optional
    : present by default
    &: together
    /: only one among
    |: several possible choices