OPTION option-clause,...

        option-clause:        { ANGLE = angle-clause                 }
                              { HANDLE = handle-clause               }
                              { CONSTANT TYPE = constant-type clause }
                              { OLD VERSION = CDD                    }
                              { TYPE = type-clause                   }
                              { SIZE = size-clause                   }
                              { SCALE = int-const                    }
                              { { ACTIVE   }                         }
                              { { INACTIVE } = active-clause         }

        angle-clause:         { DEGREES }
                              { RADIANS }

        handle-clause:        { BASIC         }
                              { SEVERE        }
                              { ERROR         }
                              { WARNING       }
                              { INFORMATIONAL }

        constant-type-clause: { REAL         }
                              { INTEGER      }
                              { DECIMAL(d,s) }

        type-clause:          { INTEGER  }
                              { REAL     }
                              { EXPLICIT }
                              { DECIMAL  }

        size-clause:          { size-item       }
                              { (size-item,...) }

        size-item:            { INTEGER int-clause }
                              { REAL real-clause   }
                              { DECIMAL (d,s)      }

        int-clause:           { BYTE }
                              { WORD }
                              { LONG }
                              { QUAD }

        real-clause:          { SINGLE }
                              { DOUBLE }
                              { GFLOAT }
                              { SFLOAT }
                              { TFLOAT }
                              { XFLOAT }

        active-clause:        { active-item       }
                              { (active-item,...) }

        active-item:          { INTEGER OVERFLOW   }
                              { DECIMAL OVERFLOW   }
                              { SET                }
                              { DECIMAL ROUNDING   }
                              { SUBSCRIPT CHECKING }