[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Just require URLs
Hi Jonathan, Jonathan said: Under the definition of URN in 2396, a URN is any URI whose intention is to reference an abstract resource, act primarily as a name, and/or not be retrievable via a network. Under the definition in 2396, "urn" defines a scheme/namespace (URI namespace) whose intention is to serve *only* for URNs, however the spec suggests that any scheme e.g. "http" can serve to define a URN, given the definition of URN in 2396 (part of which my earlier message quotes). So, my reading of RFC 2396 and the XML namespace spec leads me to conclude that all URIs used as XML namespaces are properly URNs regardless of the URI scheme prefix. Didier says: This is not what RFC 2396 says. You are right when you say that a URI coudl be a URL or a URN. However a HTTP scheme cannot be considered as a URN because it is already part of the URL space. If however you create a name space having as NID "HTTP" then yes this would be a URN. However each "/" would have to be encoded. Thus, a URN cannot be with "/" as delimiters. Obviously we'll have to create a new RFC for hierarchical name spaces having "/" as delimiters but actually you would have to encode each "/". Thus your name space would look like: urn:http:domain.com%(hex for /)context%(hex for /)etc... The above URN confor to RFC 2141 specs. However the URL: http://domain.com/context/etc... do not conform to RFC 2141 and thus cannot be said to be a URN. regards Didier PH Martin mailto:martind@n... http://www.netfolder.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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