[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Namespace handling in XML Processors
Speaking of namespaces, It's very confusing as to what is regarded as correct behavior by XML processors when encountering a document with namespaces. All the standard seems to do is to allow use of the same element names without conflict. As has been stated in the thread [Fwd: ATTN: Please comment on XHTML (before it's too late)], namespaces are explicitly not defined to be either schemas or DTDs, although the standard doesn't preclude it either. So two questions: 1) If an XML processor was semantically interpreting an XML document but encounters an unknown namespace, is it mandated to ignore all elements and attributes in that namespace? I thought this was the case, but after re-reading the standard I see it's not defined. If this is not standardized, can anyone say what is currently the common practice? 2) How should a validating XML parser deal with namespaces? This doesn't seem to be defined very clearly. I can see that we can include namespace declarations in the DTD external and internal subsets, so I guess that if I have a document mixing two namespaces I would have the external DTD point to the one for the "primary" namespace and then use the internal subset to override the external DTD to provide for insertion of elements and attributes using the second namespace. But this can rapidly get out of hand with mixing of even more namespaces. Is there any better mechanism for this, or are any planned? . . . Sean. 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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