re: Overloaded URIs must GO!
Paul Prescod writes: > Furthermore, that document defines the http:-syntax URL as being > tied to the HTTP protocol which it clearly is not when it is abused > as in > > xmlns:xsl="http://www.w3.org/XSL/Transform/1.0" > > I haven't yet heard a defense (credible or otherwise) of this nasty > and non-intuitive practice. If you don't want your URI to be > locatable and retrievable on the Internet then *please do not use > the URL syntax!* There are two good arguments in favour, though no doubt these could be answered: 1. URNs don't really exist, or at least, last I checked, there was no authoritative specification of the different URN schemes (without which URNs are worthless). URNs have been under development for most of the 1990s with few tangible results, and I'm growing slightly skeptical. 2. DNS alone is not sufficient, because people acquire Web space based on also on protocol and directory partitioning; for example, I have control over the content of http://home.sprynet.com/sprynet/dmeggins but *not* of ftp://home.sprynet.com/sprynet/dmeggins or gopher://home.sprynet.com/sprynet/dmeggins To guarantee uniqueness (however temporary), I have to base the namespace on something that I some kind of unique access rights to, and in my case, the HTTP protocol is an integral part of that. Now, there is no reason that we couldn't embed the HTTP URL into a URN, except that (unless something has happened recently) there is no normative definition of URN schemes, therefore, there's nothing I can use. What alternative do I have to building my namespaces on top of URLs? All the best, David -- David Megginson david@m... http://www.megginson.com/ xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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