Date: Mon, 18 Oct 93 10:39:12 +0100
From: Tim Berners-Lee <timbl@www3.cern.ch>
Message-Id: <9310180939.AA01330@www3.cern.ch>
To: Kevin Gamiel <kgamiel@vinca.cnidr.org>
Subject: Re: The URN: wrapper and URLs...
>Date: Sun, 17 Oct 1993 12:54:04 -0400 (EDT)
>From: Kevin Gamiel <kgamiel@vinca.cnidr.org>
[re: Adding "URL:" for "no good reason"...]
>No good reason? Do you want your parser to have to know _every_
protocol
>tag there is rather than just look for URL:?
Hold on. The URL: is not a wrapper to allow one to find
URLs.
> As protocols x,y,z,... begin
>using URLs do you want to rewrite your parser every time?
No no no. The parser parses the namespace field
and looks up in a table of known namespaces. It then
resorts to a known namespace handler (be it local
or remote) or a default (remote) one. No sweat.
> Its obviously
>not valid to say "I'll just ignore the ones I don't know"
Of couse not. You can store them, and if you
want to dereference them you can ask you
(library|kids|teacher) what they are. No rewriting.
Tim