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Re: What was it layers were for again ?

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From:
Jarkko Hietaniemi
Date:
November 28, 2000 14:00
Subject:
Re: What was it layers were for again ?
Message ID:
20001128155958.E11203@chaos.wustl.edu
On Tue, Nov 28, 2000 at 01:46:00PM -0800, Gisle Aas wrote:
> Jarkko Hietaniemi <jhi@iki.fi> writes:
> 
> > Hmmm.  I would expect UTF-8-ness (or UTF-16-ness, for that matter) or
> > filenames to be a per-filesystem(-mount) property,
> 
> Or perhaps even a per directory property or something to be specified
> by locales.  Different users on a Linux box might operate with

<shudder> :-)

Yes, I guess something like LC_FILENAME_ENCODING would be needed.
(And as i18n spreads, LC_USERNAME_ENCODING, LC_HOSTNAME_ENCODING, etc)
(I just developed a genuine case of VMS envy: having tables, as opposed
to one table, as your environment, would be so much nicer.  Alas.)

> different file name policies on the same file system.  One user might

A very good point.

> use UTF8 filenames, another latin1 and a third some other 8 bit
> encoding.
>
> File names on Unix is really just binary data (with '\0' and '/'

Yup, my Latin-1 was a gross assumption.  It might be e.g. HP Roman 8,
or SJIS, or whatever.

> having special meaning).  It is up the the applications to impose
> character semantics on them if they want.

Usually, they luckily don't (except to search for ASCII-safe separators
like '.').

> Regards,
> Gisle

-- 
$jhi++; # http://www.iki.fi/jhi/
        # There is this special biologist word we use for 'stable'.
        # It is 'dead'. -- Jack Cohen

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