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Re: Why not reinventing the wheel ?
- From: Jonathan Robie <Jonathan.Robie@SoftwareAG-USA.com>
- To: David Rosenborg <firstname.lastname@example.org>, email@example.com
- Date: Sat, 24 Feb 2001 11:28:36 -0500
At 10:34 PM 2/22/2001 +0100, David Rosenborg wrote:
>By evolutionary I mean this: XSLT and XQuery share a common pattern:
>1) select nodes
>2) generate the result tree
>In XSLT the first is handled by XPath and the second by template
>instructions. An evolutionary approach
>had been to extend, and subset (for optimization purposes) each of these
>to get a comprehensive and yet
>optimizable solution. As I said, XQuery does do this with XPath (modulo
>namespace handling and case-insensitive keywords),
>but for the generative part nothing is reused. Strange.
XSLT uses one language for selecting nodes, and a different language for
generating the result tree. XQuery uses one language that can do both. This
allows XQuery expressions to be more compositional than is possible in XSLT.
These are my opinions right now. They may be quite different from the
opinions of Software AG, the W3C XML Query Working Group, or the opinions
that I will have after reading and considering your response.