---------------------------------------------------
--          INSTR.RIG
---------------------------------------------------
#TAB
-- zanesenie w $TAB
        $imq_prawila    $vname
        /$T := LAST #Lint $Tab . $imq_prawila;
         IF NOT $T ->  $X := <. T : T .>;
                LAST #Lint $Tab ++:=
                     <. $imq_prawila : <. $vname : $X .> .>;
                RETURN $X
         ELSIF T ->  $W := $T . $vname;
                 IF $W   ->  RETURN $W
                 ELSIF T ->  $X := <. T : T .>;
                             $T ++:= <. $vname : $X .>;
                             RETURN $X   
         FI  FI /
##
----------------------------------------------------------