- From: Henrik Frystyk Nielsen <frystyk@microsoft.com>
- Date: Mon, 19 Jun 2000 08:03:59 -0700
- To: "David Carlisle" <david@dcarlisle.demon.co.uk>
- Cc: <XML-uri@w3.org>
> > There is nothing in the current > > namespace spec that prevents an application from deducing that two > > things are identical at any level in the processing so I am interested > > in hearing what you build your assumptions on. > > Some processor may decide to treat two namespaces in the same way, > but it can't decide two different namespaces are the same namespace. You have to choose here. URIs that use DNS hostnames are by the authority of the DNS hostname case insensitive. It is impossible that any usage of DNS hostnames can apply semantics to the case of characters when the ultimate authority of DNS hostnames (DNS itself [1][2]) is case insensitive. If you don't want to deal with DNS hostnames, then use a GUID or something else - that's fine - and that gives you exactly the semantics you are after wrt comparison. But then you don't get indirection - you have to choose - you can not get both in the current Internet. What you are proposing is another "case A" [3] scenario that several people have pointed out as flawed. Henrik [1] http://www.normos.org/ietf/rfc/rfc952.txt [2] http://www.normos.org/ietf/rfc/rfc1123.txt [3] http://lists.w3.org/Archives/Public/xml-uri/2000Jun/0619.html
Received on Monday, 19 June 2000 11:04:39 UTC