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Re: Subdocument fragments in a compound document (part of detailed review of documents and document framegents)

From: Robert Burns <rob@robburns.com>
Date: Tue, 17 Jul 2007 21:26:22 -0500
Message-Id: <D688930E-FD38-4C96-A720-BCC9DDE42BFC@robburns.com>
To: HTML WG <public-html@w3.org>

On Jul 17, 2007, at 10:04 AM, Geoffrey Sneddon wrote:

> XHTML5 currently allows a single element in a subdocument fragment:  
> <html>. This thereby makes every Atom document that uses  
> @type=xhtml invalid, as RFC4287 requires a single xhtml:div  
> element. Is there any reason to disallow this? The logical thing  
> would be to allow <html> for full document fragments, and <div> for  
> body fragments.

I was thinking of raising similar issues for making HTML5 more  
friendly for compound documents. I believe this relates only to the  
xml serialization based on the current draft (though I guess that  
doesn't have to be the case). A few things in addition to what  
Geoffrey proposes. For embedded HTML in XML documents I think we  
should make it explicit that:

* <head> and <bocy> elements may be omitted. This will simplify the  
embedding of HTML within other namespace documents where the document  
level metadata  is already handled the encompassing document

For embedding other namespaces within HTML5 we should make it  
explicit: that

*  any attribute with an xmlns: prefix is permitted on the root  
element: My understanding is that we would inherit this ability  
simply by declaring our document an XML serialization However, I have  
heard others argue that it is not permitted (perhaps because  
validators erroneously throw up errors). Making it explicit will  
remove the ambiguity

Take care,
Received on Wednesday, 18 July 2007 03:59:09 UTC

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