[tex-live] xindy and folders with non ascii chars

[Bruno Haible]

Norbert Preining wrote:
> In a perfect world clisp would look at the LOCALE and decide based
> on that what are the valid filenames ...

Yes, that's essentially what clisp does already, through the
*PATHNAME-ENCODING* variable (which is set based on the locale).
But it does so at a different location in the code, not already
while parsing a file name.

I've resolved https://gitlab.com/gnu-clisp/clisp/issues/10 by
limiting the check to ASCII characters, because it's the ASCII
characters (like ':', '<', '>') which are the most risky w.r.t.
weird behaviour on the file system.

Bruno