public static bool validar(string polinomio)
        {
            try
            {
                polinomio = polinomio.Replace("\\s+", "");

                StringReader read = new StringReader(polinomio);
                Lexico lex = new Lexico(read);
                Sintatico sintatico = new Sintatico();
                sintatico.parse(lex, new SemanticoDummy());

                return true;
            }
            catch (LexicalError e)
            {
                Console.WriteLine(e);
            }
            catch (SyntaticError e)
            {
                Console.WriteLine(e);
            }
            catch (SemanticError e)
            {
                Console.WriteLine(e);
            }
            return false;
        }
        //JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
        //ORIGINAL LINE: public static Polinomio criarPolinomio(String pol) throws Analisador.AnalysisError
        public static Polinomio criarPolinomio(string pol)
        {
            pol = pol.Replace("\\s+", "");
            pol = pol.Replace("\\.", "*");

            StringReader read = new StringReader(pol);
            Lexico lex = new Lexico(read);
            Sintatico sintatico = new Sintatico();
            Semantico semantico = new Semantico();
            sintatico.parse(lex, semantico);

            return semantico.Polinomio;
        }