On Sat, Jun 2, 2018 at 12:14 AM, Steven D'Aprano
<steve+comp.lang.pyt...@pearwood.info> wrote:
>
> It isn't even a set of minimum requirements. "<" is legal under POSIX,
> but not Windows.
"<" (i.e. the DOS_STAR wildcard character) is valid in device and
stream names. It's only invalid in filenames, since it's reserved for
wildcard matching in file-system calls.
For example, in the following we have a device named
'<DEVICENAME|"*?/>:' (note the name contains a forward slash) and a
stream named '<STREAMNAME|"*?>'. The stream component requires NTFS,
ReFS, or CDFS; FAT doesn't support it. Stream names also allow ASCII
control characters, except NUL.
>>> DefineDosDevice(0, '<DEVICENAME|"*?/>:', 'C:\\Temp')
>>> f = open(r'\\?\<DEVICENAME|"*?/>:\FILENAME.TXT:<STREAMNAME|"*?>', 'w')
>>> os.path.exists(r'\\?\<DEVICENAME|"*?/>:\FILENAME.TXT:<STREAMNAME|"*?>')
True
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