public DataMachineState GetNext(Token token)
{
DataMachineState nextState = this.CurrentState;
DataStateTransition transition = new DataStateTransition(CurrentState, token.Type);
if (!transitions.TryGetValue(transition, out nextState))
{
throw new Exception("DATA: Invalid transition: " + CurrentState + " -> " + nextState + "\n" + token.Text + " " + token.Type);
}
if ((this.CurrentState == DataMachineState.DATA || this.CurrentState == DataMachineState.COMMA) && token.Type == TokenType.INT)
{
this.command.ConsumeToken(token);
}
Console.WriteLine("DATA: " + this.CurrentState + " -> " + nextState + ": " + token.Text);
return(nextState);
}
public DataStateMachine(VariableTable variables, FileManager fileManager)
{
CurrentState = DataMachineState.START;
transitions = new Dictionary <DataStateTransition, DataMachineState>
{
{ new DataStateTransition(DataMachineState.START, TokenType.DATA), DataMachineState.DATA },
{ new DataStateTransition(DataMachineState.DATA, TokenType.INT), DataMachineState.DATA_ELEMENT },
{ new DataStateTransition(DataMachineState.DATA_ELEMENT, TokenType.COMMA), DataMachineState.COMMA },
{ new DataStateTransition(DataMachineState.DATA_ELEMENT, TokenType.END), DataMachineState.START },
{ new DataStateTransition(DataMachineState.COMMA, TokenType.INT), DataMachineState.DATA_ELEMENT },
{ new DataStateTransition(DataMachineState.COMMA, TokenType.END), DataMachineState.DATA_ELEMENT }
};
this.variables = variables;
this.command = new DataCommand(variables, fileManager);
}
public DataStateTransition(DataMachineState currentState, TokenType token)
{
this.CurrentState = currentState;
this.Token = token;
}
public void MoveToNextState(Token token)
{
DataMachineState nextState = GetNext(token);
this.CurrentState = nextState;
}
