[Octave-bug-tracker] [bug #59287] Functions shouldn't use `glob` on Windows

[Markus Mützel]

URL:
  <https://savannah.gnu.org/bugs/?59287>

                 Summary: Functions shouldn't use `glob` on Windows
                 Project: GNU Octave
            Submitted by: mmuetzel
            Submitted on: Sat 17 Oct 2020 04:27:06 PM CEST
                Category: Octave Function
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
                 Release: dev
         Discussion Lock: Any
        Operating System: Microsoft Windows

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Details:

In bug #59231, it turned out that `glob` doesn't work with non-ASCII
characters in directory or file names on Windows.
There was also a report on the discourse forum which might have been caused by
this issue. [1]
Since we are using functions provided by gnulib to get `glob` on Windows and
gnulib uses the ANSI API on that platform, the only way to fix that would be
to re-implement `glob` on Windows using its Unicode API. Imho, this is out of
scope of a project like Octave.

On the other hand, `__wglob__` will be working with non-ASCII characters in
Octave 7.
So until `glob` is fixed upstream (which I doubt will happen in the
foreseeable future), the next best solution would imho be to use `__wglob__`
on Windows.

For completeness: The difference between `glob` and `__wglob__` is that
`__wglob__` only supports the wildcards "*" and "?" (not patterns like
"[abc]").

.m file functions that are currently using "glob" are:
* copyfile.m
* fileattrib.m
* movefile.m
* unpack.m
* pkg/private/rebuild.m

[1]: https://octave.discourse.group/t/pkg-installation/316




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