[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] MIME types vs. DOCTYPE (was RE: ANNOUNCE: New XHTML WD)
Jonathan Borden writes: > excellent. one point: there is no reason to define text/xhtml as > opposed to using text/xml and inserting a DOCTYPE or perhaps a > default xmlns definition. If a user-agent needs to know the DOCTYPE > ... look at it! Unfortunately, that doesn't work at all -- all DOCTYPE gives me is the name of the root element, optionally accompanied by an internal DTD subset and identifiers for an external DTD subset. The name of the root element is locally-scoped to the document itself, so it's useless for type discovery (what if my document type and yours both use "article" as the name of the root element?); the public identifier (or the system identifier if it is an absolute URI) can uniquely identify the entity containing the external DTD subset but not the document type itself. Both namespaces and architectural forms provide the means for uniquely identifying the types of at least parts of a document (specific element and attribute types for namespaces, specific architectural views for AFs), but why should a client have to go to all that trouble? Isn't it easier to identify the resource type externally so that it can be handed directly to the correct processor? 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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