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[whatwg] The problems with namespaces in text/html

From: Elliotte Harold <elharo@metalab.unc.edu>
Date: Sun, 05 Nov 2006 08:57:08 -0500
Message-ID: <454DEDB4.9000101@metalab.unc.edu>
Bjoern Hoehrmann wrote:
> * Lachlan Hunt wrote:
>> Yes, never!  For one, a conforming HTML 5 (not XHTML 5) document 
>> requires the DOCTYPE to be <!DOCTYPE html> and that is not well-formed XML.
> Yes it is.

Good catch. I forgot that. There are one or two XML parsers that blow 
this one, but they're not much used. The specific BNF production is:

doctypedecl  ::= '<!DOCTYPE' S  Name (S  ExternalID)? S? ('[' intSubset 
']' S?)? '>'

External ID and system ID are both optional.

Is there anything else that stops every HTML5 document from being a 
well-formed XML document?

?Elliotte Rusty Harold  elharo at metalab.unc.edu
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Received on Sunday, 5 November 2006 05:57:08 UTC

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