[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message]

Re: The use of XML syntax in XML Query

• To: "Jonathan Borden" <jborden@m...>, "David Carlisle" <davidc@n...>, "Jonathan Robie" <jonathan.robie@s...>
• Subject: Re: The use of XML syntax in XML Query
• From: "James Clark" <jjc@j...>
• Date: Fri, 4 Jan 2002 17:21:36 +0700
• Cc: <www-xml-query-comments@w...>, <xml-dev@l...>
• References: <5.1.0.14.0.20020103111935.044f6360@s...> <5.1.0.14.0.20020103095206.039e6b20@s...> <5.1.0.14.0.20020103095206.039e6b20@s...> <5.1.0.14.0.20020103111935.044f6360@s...> <5.1.0.14.0.20020103121102.044afc98@s...> <5.1.0.14.0.20020103161536.04144e10@s...>

> >3) updating XSLT including XPath 2.0 as the XML syntax 'version' of
XQuery,
> >that is to say any features of XQuery not included in XPath 2.0 should be
> >included in XSLT 2.0 (well it already has element constructors etc). Is
this
> >feasable?
>
> Possibly. But some of this is hard. XSLT tends to construct things top
> down, and XQuery constructs things bottom up, for reasons that make
perfect
> sense in each language, which means the element constructors are
different.

I don't understand this argument at all.  I don't see any fundamental
semantic differences between element construction in XSLT and element
construction in XQuery. If there was the political will, I believe XSLT and
XQuery element construction could be unified. Some time ago, before I
dropped out of W3C activities, I wrote a short paper on this.  See:

    http://www.jclark.com/xml/construct.html

Note that this was written relative to an older XQuery draft than the
current one.

> Updates don't work well in XSLT since it clearly separates the input tree
> from the output tree.

And XQuery doesn't?

James

• Follow-Ups:
  • Re: The use of XML syntax in XML Query
    • From: Paul T <pault12@p...>

• References:
  • Re: The use of XML syntax in XML Query
    • From: Jonathan Robie <jonathan.robie@s...>
  • Re: The use of XML syntax in XML Query
    • From: Jonathan Robie <jonathan.robie@s...>
  • Re: The use of XML syntax in XML Query
    • From: Jonathan Robie <jonathan.robie@s...>
  • Re: The use of XML syntax in XML Query
    • From: Jonathan Robie <jonathan.robie@s...>

• Prev by Date: RE: The use of XML syntax in XML Query
• Next by Date: RE: XSLT and XQuery
• Previous by thread: Re: The use of XML syntax in XML Query
• Next by thread: Re: The use of XML syntax in XML Query
• Index(es):
  • Date
  • Thread