private void Evaluate(String content, Boolean showOutput) { try { var result = _interactivity.Run(_engine, content); if (showOutput) { var output = default(String); if (result != null) { output = Stringify.This(result); } _interactivity.Info(output); _engine.Scope["ans"] = result; } } catch (ParseException ex) { _interactivity.Display(ex.Error, content); } catch (Exception ex) { _interactivity.Error(ex.Message); } _interactivity.Write(Environment.NewLine); }