public void Double_Exposant_SepIsDot_true()
        {
            ExpressionEval evaluator = new ExpressionEval();

            // definir langue: fr ou en, sert pour les opérateurs: ET/AND, OU/OR, NON/NOT.
            evaluator.SetLang(Language.En);

            //evaluator.SetDoubleDecimalSeparator(ExpressionEvalDef.DoubleDecimalSeparator.Dot);

            string      expr        = "(a = 12.45E3)";
            ParseResult parseResult = evaluator.Parse(expr);

            Assert.IsFalse(parseResult.HasError, "the parse should finish successfully");

            //====2/prepare the execution, provide all used variables: type and value
            //ExprExecResult execResult = evaluator.InitExec();

            evaluator.DefineVarDouble("a", 12.45E3);

            //====3/execute l'expression booléenne
            ExecResult execResult = evaluator.Exec();

            Assert.AreEqual(false, execResult.HasError, "The exec of the expression should finish with success");

            // check the final result value
            Assert.IsTrue(execResult.ResultBool, "The result value should be true");
        }
        public static void a_Eq_123E5_true()
        {
            string expr = "a=123E5";

            Console.WriteLine("\n====The expression is: " + expr);

            ExpressionEval evaluator = new ExpressionEval();

            //====1/decode the expression
            evaluator.Parse(expr);

            //====2/prepare the execution, provide all used variables: type and value, remove the previous result
            Console.WriteLine("Define variables: a:=123E5");
            evaluator.DefineVarDouble("a", 123E5);

            //====3/Execute the expression
            ExecResult execResult = evaluator.Exec();

            //====4/get the result, its a bool value
            Console.WriteLine("Execution Result: " + execResult.ResultBool);
        }