Use of xml:base of in XHTML family documents

I don't follow the rational for the language in the new Base URI
appendix that says:

"Other XML documents may use XML Base. This is only recommended when the
specific document format permits the use of XML Base. Specifically,
xml:base should not be used with XHTML family documents."
         ^^^^^^^^^^ 

This is WRT to the thread [1] on xml:base in XHTML.  I have a problem
with this.  In particular the last sentence can't be enforced by any
specification I know of.  The use of xml:base in an XHTML document may
result in an invalid XML document (WRT XHTML DTD's) but that is quite
different from discouraging this explicitly (I don't think GRDDL should
be doing this).  AFAIC, the following document is not valid but nothing
else is wrong with it:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:base="http://example.com/foo">
<body/>
</html>

XML Base language is crystal clear about its use going 'forward' for XML
documents in general (which the above most certainly is - even though it
is not an XHTML document).  None of Jeremy's spelunking [2] found
anything to suggest otherwise.

[1]http://lists.w3.org/Archives/Public/public-grddl-wg/2007Jun/0111.html
[2]http://lists.w3.org/Archives/Public/public-grddl-wg/2007Jun/0128.html

-- 
Chimezie Ogbuji
Lead Systems Analyst
Thoracic and Cardiovascular Surgery
Cleveland Clinic Foundation
9500 Euclid Avenue/ W26
Cleveland, Ohio 44195
Office: (216)444-8593
ogbujic@ccf.org


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Received on Monday, 25 June 2007 21:39:03 UTC