[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Namespace Basic Principles
"Sean B. Palmer" <sean@m...> writes: > Simple question:- > > <div xmlns="http://www.w3.org/1999/xhtml" /> > > It has often been siad that the most useful characteristic of having > a unique name for XML is simply that it is therfore unique. The > above example is an XHTML div element. But how do we know it is > XHTML? > For the record: I think that an HTML processor could jsut > "recognize" the xmlns. An XML processor would just say "well, it's > unique", and an SW engine would try to dereference it. Right. At this stage, since there is no (general) spec that ties a NS to any other semantic information, the attachment of semantic information is done "out of band". Every XML application I've seen or written that uses namespaces to derive semantics has a copy of the namespace URI so that when it sees that URI in an instance it can go, "ah, I know what that is". I think the meat of this whole debate surrounds "where is the spec that ties a NS to other semantic information", and then only collaterally what issues would be involved in doing so. -- Ken
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