- From: Roy T. Fielding <fielding@gbiv.com>
- Date: Fri, 6 Oct 2006 00:58:37 -0700
- To: Frank Ellermann <nobody@xyzzy.claranet.de>
- Cc: uri@w3.org
On Oct 5, 2006, at 7:11 PM, Frank Ellermann wrote:
> Roy T. Fielding wrote:
>
>> All of the URI specs have specifically excluded braces from the
>> syntax, partly because it was anticipated that we would need a
>> syntax for variable substitution some day.
>
> There's apparently nothing like <delim> or <unwise> in RFC 3986,
There is no need for them. The ABNF completely specifies the allowed
characters in a URI.
> and RFC 4622 now happily uses _anything_ that's not explicitly
> "verboten" by RFC 3986. The xmpp: scheme was reviewed here.
Then RFC 4622 is broken and should be removed from the standards track.
It cannot override a requirement in a full standard:
URI scheme specifications must define their own
syntax so that all strings matching their scheme-specific syntax
will
also match the <absolute-URI> grammar, as described in Section 4.3.
There are no exceptions.
....Roy
Received on Friday, 6 October 2006 07:58:52 UTC