XML Hypertext Example
<?xml version="1.0"?>
<story date="January 9, 2001"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xi="http://www.w3.org/2001/XInclude"
xml:base="http://www.cafeaulait.org/">
<p>
The W3C XML Linking Working Group has pushed the
<cite xlink:href="http://www.w3.org/TR/2001/WD-xptr-20010108">
XPointer specification
</cite>
back to working draft status. The specific issue that was
uncovered during Candidate Recommendation was some
<em xlink:type="simple"
xlink:href="http://www.w3.org/TR/xptr#xpointer(//div[@class='div3'][7])">
confusion
</em>
over how to integrate XPointers, particularly those
in non-XML documents, with namespaces.
</p>
<p>
It's also come to light in this draft that Sun has
<em xlink:type="simple"
xlink:href=
"http://lists.w3.org/Archives/Public/www-xml-linking-comments/2000OctDec/0092.html"
>
claimed a patent</em> on some of the technologies needed to
implement XPointer. I think this is particularly offensive
because Eve L. Maler, a Sun employee, served as co-chair of
the XML Linking Working Group and a co-editor of the XPointer
specification. As usual Sun wants to use this as a club to lock
implementers and users into a licensing agreement that goes
beyond what Sun and the W3C could otherwise demand. The specific
patent is <cite>United States Patent No. 5,659,729, Method and
system for implementing hypertext scroll attributes</cite>, issued
to Jakob Nielsen in 1997. The patent was filed on February 1, 1996.
It claims:
</p>
<blockquote>
<xi:include href=
"http://www.delphion.com/details?&pn=US05659729__#xpointer(//abstract)"
></xi:include>
</blockquote>
</story>