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List:       kde-core-devel
Subject:    Re: KProtocolManager
From:       Waldo Bastian <bastian () suse ! de>
Date:       2000-01-05 14:34:38
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On Wed, 05 Jan 2000, Stephan Kulow wrote:
> > Can't you derive that from the syntax? If the reference part
> > contains a valid URL you can assume it is a subprotocol. Just check
> > wheter the reference matches with "[a-zA-Z]:/" or something like
> > that.
>
> That I would say if the RFC tells you something about valid
> references. I wouldn't be suprised if
> http://host/mirrors.html#ftp://ftp.kde.org/pub/kde is
> a valid http URL an cd("..") should go to http://host/

Well. Then we need to get rid of the current subprotocol scheme 
altogether because http://host/mirrors.html#tar:/pub/kde is just as 
valid then.

Looking at the BNF in RFC1808, a '#' is not allowed inside the 
reference after the first #. So we can use the following scheme for 
sub-protocols and differentiate unambigious between valid URLs and URLs 
with subprotocols purely based on syntax:

<URL>##<SUB-URL>

So "http://host/mirrors.html#tar:/pub/kde" would be a normal URL and
"http://host/mirrors.html##tar:/pub/kde" would be an URL with 
sub-protocols.

Cheers,
Waldo

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