On Mon, 04 Jun 2018 22:13:47 +0200, Peter J. Holzer wrote: > On 2018-06-04 13:23:59 +0000, Steven D'Aprano wrote: [...]
>> I don't know whether or not the Linux OS is capable of accessing files >> with embedded NULs in the file name. But Mac OS is capable of doing so, >> so it should be possible. Wikipedia says: >> >> "HFS Plus mandates support for an escape sequence to allow arbitrary >> Unicode. Users of older software might see the escape sequences instead >> of the desired characters." > > I don't know about MacOS. In Linux there is no way to pass a filename > with an embedded '\0' (or a '/' which is not path separator) between the > kernel and user space. So if a filesystem contained such a filename, the > kernel would have to map it (via an escape sequence or some other > mechanism) to a different file name. Which of course means that - from > the perspective of any user space process - the filename doesn't contain > a '\0' or '/'. That's an invalid analogy. According to that analogy, Python strings don't contain ASCII NULs, because you have to use an escape mechanism to insert them: string = "Is this \0 not a NULL?" But we know that Python strings are not NUL-terminated and can contain NUL. It's just another character. -- Steven D'Aprano "Ever since I learned about confirmation bias, I've been seeing it everywhere." -- Jon Ronson -- https://mail.python.org/mailman/listinfo/python-list