I don't understand if you agree or disagree with me. When you say that you have written things to encode user input so that no "bad" characters (among which I a

I don't understand if you agree or disagree with me. When you say that you have written things to encode user input so that no "bad" characters (among which I assume you include CR) end up in the filename, you seem to agree that it's not enough for CR to be in the keyboard for it to be automatically allowed in filenames. Which was my point.