Re: File name completion on Mac OS X with German umlauts

[Nikolaj Schumacher]

Eli Zaretskii <eliz@gnu.org> wrote:

> It is only a ``problem'' if you accept the view that no two files in
> the same directory can have names that are pronounced identically.

No, it's not just that.
Certainly, you could have files "X" and "Ⅹ" (the Roman numeral).  Even
if they look the same there is no problem (other than likely user
confusion) in having both.

However, the two types of "ü" are the same character, or at least
functionally equivalent characters.  They should be considered equal.
But comparing them properly requires normalization
(cf. http://www.unicode.org/unicode/reports/tr15/).

OSX does normalization in its file system.  GNU/Linux apparently does not.

Emacs must also be doing some normalization... switch-to-buffer
completion works on "rückerstattung" after all.  Only `read-file-name'
doesn't.  Hmm, maybe this /is/ an Emacs bug after all.


regards,
Nikolaj Schumacher