private ExpressionNode F()
{
if (token.type == TokenType.PAREN_OPEN)
{
token = lexer.GetNextToken();
var eValor = E();
if (token.type != TokenType.PAREN_CLOSE)
{
throw new ParserException("Expected closing parenthesis.");
}
token = lexer.GetNextToken();
return(eValor);
}
else if (token.type == TokenType.LIT_INT)
{
var valor = new NumNode(float.Parse(token.lexema));
token = lexer.GetNextToken();
return(valor);
}
else if (token.type == TokenType.LIT_BOOL)
{
var valor = new BoolNode(bool.Parse(token.lexema));
token = lexer.GetNextToken();
return(valor);
}
else if (token.type == TokenType.ID)
{
return(ID());
}
else
{
throw new ParserException("Expected a factor.");
}
}
public string Print(BoolNode bnode)
{
return("" + bnode.t);
}
