Re: unicode
H. Peter Anvin (hpa@transmeta.com)
15 May 1998 03:32:31 GMT
Followup to: <199805150241.WAA29079@jupiter.cs.uml.edu>
By author: "Albert D. Cahalan" <acahalan@cs.uml.edu>
In newsgroup: linux.dev.kernel
>
> Kenneth Albanowski writes:
>
> > Sorting order clearly does not need to be in the kernel or filesystem,
> > while case insensitivity is less clear. If not in the kernel, it still
> > needs to be ubiquitous, so some libc facility seems necessary. Note that a
> > canonical "lower-case" storage format is probably not feasible in all
> > languages.
> >
> > 'Til now, I've been of the opinion that case-insensitivity had no part in
> > Linux, but I'm coming round to the opinion that it will be necessary as
> > part of a "user-friendly" UI.
>
> NTFS stores a 128-kB case table in the filesystem.
> It is used to make the B-tree directories work right.
>
It's not B-trees, it is case folding. Just goes to show just how bad
an idea case folding is.
Case insensitivity is specifically prohibited by Posix.
-hpa
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