Re: Test Case with xml-dsig

Norman Walsh <Norman.Walsh@Sun.COM> writes:

> / John Boyer <JBoyer@PureEdge.com> was heard to say:
> | C14N isn't "just plain broken" with respect to xml:id.
> |
> | C14N was produced years before xml:id and therefore 
> | "does not support" xml:id.
>
> No offense was intended, please accept my apologies for not expressing
> that more carefully.
>
> C14N was written with the assumption that all attributes in the xml:
> namespace were inherited by their descendants. When C14N was written,
> the only examples of attributes in the xml: namespace were xml:lang,
> xml:space, and xml:base, all of which behave in this way.

Er, no, xml:base (which may or may not have come later), certainly
does _not_ behave that way.  Consider 

<root xml:base="../elsewhere" xlink:href="relative.html">
 <internal xlink:href="relative.html"/>
</root>

Those two hrefs are to the _same_ absolute URI, which would not be
true if xml:base were copied downwards!

Richard Tobin first pointed this out, as far as I know.

ht
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 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
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