Library /sys$common/syshlp/BASICHELP.HLB

   MAP (map-name) { [ data-type ] map-item },...

     map-item:  { num-unsubs-var-name                                 }
                { num-array-name ([int-const1 TO] int-const2,...)     }
                { str-unsubs-var-name [=int-const]                    }
                { str-array-name ([int-const1 TO]
                  int-const2,...)[=int-const]                         }
                { FILL [ (int-const) ] [=int-const]                   }
                { FILL% [ (int-const) ]                               }
                { FILL$ [ (int-const) ] [=int-const]                  }