[Haskell-cafe] Re: File path programme

[David Menendez]

Marcin 'Qrczak' Kowalczyk writes:

> AFAIK MacOS normalizes filenames, but using a slightly different
> algorithm than Unicode (perhaps just an older version).

According to <http://developer.apple.com/qa/qa2001/qa1173.html>, Mac OS
X uses different forms depending on the file system.

| For example, HFS Plus uses a variant of Normal Form D in which 
| U+2000 through U+2FFF, U+F900 through U+FAFF, and U+2F800 through
| U+2FAFF are not decomposed (this avoids problems with round trip
| conversions from old Mac text encodings).

The big catch to watch out for is that Mac OS X supports UFS, which is
case sensitive, and HFS+, which is not. I've had at least one Haskell
program that didn't work properly because it tried to create two files
named "tags" and "TAGS" in the same directory.
-- 
David Menendez <zednenem at psualum.com> <http://www.eyrie.org/~zednenem/>