Re: [xtm-wg] Dynamic Generation and Serving of Topic Maps

[Sam Hunting <sam_hunting@yahoo.com>]

[Dave Pawson wrote:]
> > Whats missing from XSLT/XPATH for [topic map] queries, which
produce
> > XML results?

[Murray Altheim responded:]

> Yes, this was my feeling as well. If XPath and XPointer don't fill
> the bill, then we're in trouble. I'd think "XTMQL" would be simply a
> document showing how to perform common XTM queries using XPath and
> XPointer.

This is a huge selling point in terms of simplicity, and also gets
points in the "plays well with others" category...

However--

Murray (or someone), educate me. Here's a quote from the XPointer CR:

<quote>
XPointer supports addressing into the internal structures of XML
documents. It allows for examination of a document's hierarchical
structure and choice of its internal parts based on various properties,
such as element types, attribute values, character content, and
relative position. In particular, it provides for specific reference to
elements, character strings, and other parts of XML documents, whether
or not they bear an explicit ID attribute.
</quote>

Is XPointer so oriented to tree structures that it is subtoptimal for
XTM's more graph-like structures? OTOH, could the "XTMQL document" of
which you speak be a reference implemenation, leaving optimizations up
to vendors?

S.




=====
<? "To imagine a language is to imagine a form of life."
    -- Ludwig Wittgenstein, Philosophical Investigations ?>

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