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RE: Grouping and Sorting on value inside group

Subject: RE: Grouping and Sorting on value inside group
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Wed, 12 Jun 2002 11:26:39 -0400
RE:  Grouping and Sorting on value inside group

I hope we're not just repeating things over the back fence, but....

At 09:36 AM 6/12/2002, you wrote:
> That would be so, except the generate-id() function has already filtered
> out all but the first of the nodes returned by the key() function.... it
> only operates on the first node in the set, when its argument is a node
> (since it returns a string, it has to pick one node and that's the one it
> picks).

That makes sense.  My understanding is that I'm picking up the context of
the nodes in the for-each and comparing the first nodes of each group
matching the respective dataIds (there are multiple groups of nodes each
with a different dataId).  This may be a ambiguity or even bug, the key
reference should probably make it explicit?

It's not the key() function that's reducing it to a single node, it's the generate-id() function you are running on the nodes returned by key(). As in:

"The generate-id function returns a string that uniquely identifies the node in the argument node-set that is first in document order." [XSLT 12.4]

No ambiguity there. Beyond this, I think Tom S. explained it.

But I'm confused not having the examples in front of me. Would you be able to snip them out (again) and recapitulate the question if I'm not getting what you're asking?


====================================================================== Wendell Piez mailto:wapiez@xxxxxxxxxxxxxxxx Mulberry Technologies, Inc. http://www.mulberrytech.com 17 West Jefferson Street Direct Phone: 301/315-9635 Suite 207 Phone: 301/315-9631 Rockville, MD 20850 Fax: 301/315-8285 ---------------------------------------------------------------------- Mulberry Technologies: A Consultancy Specializing in SGML and XML ======================================================================

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