Re: surprising glob() result on Windows

> Briefly, I have a case where glob("*.ext") returns more files than I
> expect.
>
> To give an example, in a directory of your choice create two files named
> "test.any" and "zest.anyother". The important detail is that the second
> filename's extension be prefixed by the first filename's extension.
>
> Then launch Vim in that directory and run the command
> :echo glob("*.any")
> Both files are returned, not just "test.any".
>
> I see this on Windows running vim 9.0.1240 with normal features built
> with Visual C. On the other hand, Vim on my linux box returns only
> "test.any", as I would expect, so I don't think this a feature. :)
>
> Any comments?

What file system is being used? Some older filesystems use a trick to
make long file names possible. The file then appears twice in the
directory, once with the short name and once with the long name. Vim
may find a match with the short name, includes it in the list of
matches and then expands it to the long name.
See https://en.wikipedia.org/wiki/Long_filename

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