A user input containing backslashes (as with Windows file paths) causes an error #826
Description
The user might put in double backslashes as workaround, but this is not intuitive - the user should be able to input e.g. a Windows path as usual, not in Java string literal syntax.
So this should be fixed, but also allowing to enter a string containing e.g. \n in order to create a newline as demanded by issue #276. (This may lead to ambiguity, of course, as in an hypothetic input string "documents\newDocs\nextDoc.docx")