Re: A Great Idea (tm) about reimplementing NLS.

["Måns Rullgård" <mru@inprovide.com>]

Lukasz Stelmach <stlman@poczta.fm> writes:

> Lennart Sorensen napisał(a):
>
>>>And it is good in a way, however, i think kernel level translation
>>>should be also possible. Either done by a code in each filsystem or by
>>>some layer above it.
>> 
>> What do you do if the underlying filesystem can not store some unicode
>> characters that are allowed on others?
>
> That's why UTF-8 is suggested. UTF-8 has been developed to "fool" the
> software that need not to be aware of unicodeness of the text it manages
> to handle it without any hickups *and* to store in the text information
> about multibyte characters.What characters exactly you do mean? NULL?
> There is no NULL byte in any UTF-8 string except the one which
> terminates it.

That's exactly how ext3, reiserfs, xfs, jfs, etc. all work.  A few
filesystems are tagged as using some specific encoding.  If your
filesystem is marked for iso-8859-1, what should a kernel with a
conversion mechanism do if a user tries to name a file 김?

>> I think UDF is a better filesystem for many types of media since it is
>> able to me more gently to the sectors storing the meta data than VFAT
>> ever will be.
>
> I've tried cd packet writing with UDF and it gives insane overhead of
> about 20%. What metadata you'd like to store for example on your
> flashdrive or a floppy disk?

Filename, timestamps, all the usual.

-- 
Måns Rullgård
mru@inprovide.com