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[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Re: Why REST was Re: URIs are simply names
 > You agreed earlier with Jonathan that: > >> > What I said. The _namespace_ is the resource, the _namespace name_ is the > ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ >> > identifier of the resource. Don't conflate the name with the thing. No I only agreed with the last part (not conflating names with things) I admit that that wasn't at all clear in the way I quoted it (although it may have been clear from the rest of my message that I didn't agree that the namespace is the resource) > >From this I can only conclude that the URI must identify > at least two *different* resources: one which is a namespace > and another one which -- as you have asserted -- is not. > Is that right? Yes but using "identify" in that way makes it appear confusing as only one of those 2 is identification in the sense of UR_I_. The URI RFCs specify a mapping from strings (called URI references) to resources. The Namespace Rec specifies a mapping from the same strings to namespaces. (Given that one can say just about anything is a resource then one can also say a namespace is a resource, but even if you do that the second mapping is in principle a different mapping) Both mappings are restricted to strings that obey the lexical constraints on URI references. But they are different mappings. http://www.example.com/example.html# identifies (I think) the same resource as http://www.example.com/example.html as empty fragment identifiers are explictly mentioned in the URI specs as refering to the base. But the Namespace spec goes to some lengths to stress that the namespaces named by these two strings are different. You see the quoted "bottom line" has no weight > Bottom line: > > well known URI: http://www.w3.org/1999/XSL/Transform > what is the identified resource? surely the XSLT namespace (just ask the URI > by GETting it -- it says so) If I GET http://www.w3.org/1999/XSL/Transform then it says it is the XSLT namespace. If I GET http://www.w3.org/1999/XSL/Transform# then it says the same thing. The first one is right and the second one is wrong (try writing an XSLT stylesheet with that namespace) I know which is right from reading the XSLT REC, and that's the only way. What I get back from dereferencing the namespace name as a URI may be a hint as to what the namespace is about but it can, as demonstrated, be wrong. David _____________________________________________________________________ This message has been checked for all known viruses by Star Internet delivered through the MessageLabs Virus Scanning Service. For further information visit http://www.star.net.uk/stats.asp or alternatively call Star Internet for details on the Virus Scanning Service. 
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