Date: Mon, 08 Jun 1998 13:25:51 -0700 From: Mike Smith <mike@smith.net.au> To: Garance A Drosihn <drosih@rpi.edu> Cc: current@FreeBSD.ORG Subject: Re: Variant Link implementation (Was: Re: lorder problem: ....... ) Message-ID: <199806082025.NAA00919@dingo.cdrom.com> In-Reply-To: Your message of "Mon, 08 Jun 1998 16:05:35 EDT." <v04011704b1a1f25d596a@[128.113.24.47]>
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> At 2:30 PM +0200 6/7/98, Willem Jan Withagen wrote:
> >mike@smith.net.au wrote:
> > > Can you clarify the AFS syntax a little more? Is there a delimiter
> > > around the 'name'? If not, are variant components only allowed to be
> > > entire path entities? How do you put more than one entry based on a
> > > single parameter into a given directory? Or are you forced to duplicate
> > >information across more than one parameter?
> >
> > Syntax is in some ways a cosmetic issue. What we need next to syntax is
> > the semantics of the variants.
>
> I have a question, given the subject of this thread. Are we talking
> about something that is only available when processing links, or are
> we talking about something that would be available for any pathname
> reference?
We're only talking about substitutions on the target field of symbolic
links.
> In AFS, I can reference /place/program/@sys/src, as long as /place
> is in an AFS file system. ("@sys" is the literal string used to
> indicate the afs-system-variable, and afs turns that into some
> string such as "sun4x_55", depending on what platform you are on
> when the variable is expanded).
This would require parsing *every* path component. I don't think that
the overheads involved in this would be popular at all.
--
\\ Sometimes you're ahead, \\ Mike Smith
\\ sometimes you're behind. \\ mike@smith.net.au
\\ The race is long, and in the \\ msmith@freebsd.org
\\ end it's only with yourself. \\ msmith@cdrom.com
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