//program2.cd
//Name: Cengiz GOK
//Account name: cgok
//Original program written by Binoy Samuel
//rewritten by Cengiz GOK in a more adaptive way for demjava  12/04/97

BusRoute =
	"BusRoute:" <name> RouteName
	"total" "route" "length" ":" <totalLength> RouteLen
	"consisting" "of" "bus" "stops" ":" <busStops> BusStop_List
	"with" "assigned" "busses" ":" <buses> Bus_List.
BusStop	=
	<id> StopId
	"at:" <location> RouteLoc  // clockwise dist. from origin
	"with" "waiting" "list" ":" <waitingList>Person_List.

Bus : NaturalGasBus | GasolineBus | DieselBus
*common* 
	<id> BusId
	"at:" <position> RouteLoc  // clockwise dist. from origin
	[ "currently" "at" "stop" ":"  <currentStop>  StopId]
	"driver:"<drivername>DriverName
	"capacity:" <capacity> BusCapac
	"speed:" <speed> BusSpeed
	"carrying" "passenger(s)" ":" <passengers> Person_List.
NaturalGasBus = "*N*".
GasolineBus="*G*".
DieselBus="*D*".
Person =
	<id> PersonId
	"destination:" <destination> StopId.   // id of the dest. stop

BusStop_List  ~ "(" { BusStop } ")".
Bus_List ~ "(" { Bus } ")".
Person_List ~ "(" { Person } ")".


RouteName = <v> String.
DriverName= <v> String.
RouteLen  = <v> Integer "ft".
RouteLoc  = <v> Integer "ft".
BusCapac  = <v> Integer "passengers".
BusSpeed  = <v> Integer "ft/min".
StopId    = <v> Ident.
BusId     = <v> Ident.
PersonId  = <v> Ident.
Main =.