protected TableStateInfo GetState(int state)
{
while (m_tabela.Count <= state)
{
m_tabela.Add(null);
}
if (m_tabela[state] == null)
{
m_tabela[state] = new TableStateInfo(state);
}
return(m_tabela[state]);
}
public bool InternalProccessInput(bool returnOneToken)
{
int input = Scanner.INPUT_EOF;
bool retorno = false;
while (true)
{
if ((CurrentState < 0 || CurrentState >= m_tabela.Count) || (m_tabela[CurrentState] == null))
{
string msg;
if (input == Scanner.INPUT_EOF)
{
msg = "Fim de arquivo encontrado.";
}
else
{
msg = "Estado inválido encontrado.";
}
FinalState = Scanner.INVALID_STATE;
OnError(msg);
break;
}
input = GetInput();
TableStateInfo estadoAtual = m_tabela[CurrentState];
int target = estadoAtual.GetTarget(input);
if (target <= 0)
{
string msg;
if (input == Scanner.INPUT_EOF)
{
msg = "Fim de arquivo inesperado encontrado.";
}
else
{
msg = String.Format("Caracter inválido encontrado: {0}", (char)input);
}
FinalState = Scanner.INVALID_STATE;
OnError(msg);
break;
}
NextState = target & TARGET_STATE_MASK;
char dc = '?';
if (input >= 32 && input < 127)
{
dc = (char)input;
}
if (NextState == Scanner.SUCCESS_STATE)
{
FinalState = Scanner.SUCCESS_STATE;
retorno = true;
break;
}
else if (NextState == Scanner.FAILED_STATE)
{
FinalState = Scanner.FAILED_STATE;
OnError("Falha no reconhecimento da entrada");
break;
}
// ----------------------------
if ((target & (int)eStateModifiers.e01ReturnToken) != 0)
{
ReturnToken(estadoAtual.GetTokenId(input));
}
if ((target & (int)eStateModifiers.e02ClearToken) != 0)
{
ClearToken();
}
if ((target & (int)eStateModifiers.e03InsertToken) != 0)
{
InsertToken(input);
}
// ----------------------------
if ((target & (int)eStateModifiers.e04ReturnToken) != 0)
{
ReturnToken(estadoAtual.GetTokenId(input));
}
if ((target & (int)eStateModifiers.e05ClearToken) != 0)
{
ClearToken();
}
if ((target & (int)eStateModifiers.e06InsertToken) != 0)
{
InsertToken(input);
}
// ----------------------------
if ((target & (int)eStateModifiers.e07ReturnToken) != 0)
{
ReturnToken(estadoAtual.GetTokenId(input));
}
if ((target & (int)eStateModifiers.e08ClearToken) != 0)
{
ClearToken();
}
if ((target & (int)eStateModifiers.e09InsertToken) != 0)
{
InsertToken(input);
}
// ----------------------------
if ((target & (int)eStateModifiers.e10PushBack) != 0)
{
PushInput(input);
}
// ----------------------------
LastState = CurrentState;
CurrentState = NextState;
if (returnOneToken && Tokens.Count > 0)
{
break;
}
}
return(retorno);
}
private void SetState(int fromState, int toState, string chars, eStateModifiers modifiers, int tokenId)
{
TableStateInfo state = GetState(fromState);
state.SetState(toState, chars, modifiers, tokenId);
}
private void SetStateSuccessEOF(int stateIndex)
{
TableStateInfo state = GetState(stateIndex);
state.SetState(Scanner.SUCCESS_STATE, Scanner.INPUT_EOF, eStateModifiers.eNenhum, Scanner.NO_TOKEN_ID);
}
private void SetStateFailEOF(int stateIndex)
{
TableStateInfo state = GetState(stateIndex);
state.SetState(Scanner.FAILED_STATE, Scanner.INPUT_EOF, eStateModifiers.eNenhum, Scanner.NO_TOKEN_ID);
}
