import java.util.*; import java.io.*; 

BrokerSim = 	<marketList> MarketList
		<accountList> AccountList
		<operationList> OperationList .
MarketList = 	<mlist> List(Investment) .

OperationList = <oplist> List(Operation) .

Operation : 	Quit | Report | Buy | Sell | Invalid
		*common* 
		<opCode> OpCode 
		<opDesc> Description.

OpCode = 	<o> String .

Report : 	MarketReport | AccountReport .

MarketReport = 	"DisplayMarketReport".
AccountReport = "DisplayAccountReport".
Buy = 		"PurchaseInvestment".
Sell = 		"SellInvestment". 
Quit = 		"Quit".
Invalid = 		"Invalid".

AccountList = 	<aclist> List(Account) .

Account = 	"Username:" <username> Username
		"Password:" <password> Password 
		"$" <cash> Cash 
		["[" <portfolio> Portfolio "]"] .

Username = 	<uname> String .
Password = 	<pword> String .

Cash = 		<amount> float .

Portfolio = 	<ilist> List(Investment) .

Investment = 	"*" <symbol> TickerSymbol
		"$" <value> UnitValue
		"#" <shares> Shares
		[<description> Description] .

TickerSymbol = 	<ttsymbol> String .
UnitValue = 	<value> float .
Shares = 	<shares> int .
Description = 	<desc> String .

List(S) ~ "(" { S } ")".

noparse

CheckUsernameVisitor = <username> Username <account> Account <caccount> Account .
DisplayOpVisitor = .
FindOpVisitor = <opcode> OpCode <operation> Operation .
FileVisitor = <file> PrintWriter .

parse

Main = .