RE: Getting the first and last nodes of a sorted nodes

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Subject: RE: Getting the first and last nodes of a sorted nodeset
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Thu, 08 Apr 2004 13:26:35 -0400

Hi John,

It's good to know you're so far ahead with this. Sorry if the posts crosses: lists do that sometimes.

At 01:19 PM 4/8/2004, you wrote:

How do you "Bind the result of your sort to a variable" when (so far as
I am aware) you can only sort output elements from within a for-each or
apply-templates by using the xsl:sort element?


<xsl:variable name="sorted-result">
  <xsl:apply-templates>
    <xsl:sort/>
  </xsl:apply-templates>
</xsl:variable>

The thing is, in XSLT 1.0 this variable is now a Result Tree Fragment, a datatype that can be copied to output and that can be operated on as a string, but that can't be operated on as a node set. As you can imagine, the latter feature would be (is) extremely powerful -- and is what the node-set() extension function is for. (So exsl:node-set($sorted-result) turns this RTF into a node set you can apply templates to.) In XSLT 2.0, it's a node set already when it's created, so you can reprocess $sorted-result freely, no differently from your source document.

Cheers,
Wendell


======================================================================
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
----------------------------------------------------------------------
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======================================================================

Current Thread

RE: Getting the first and last nodes of a sorted nodeset, (continued)
- Hansen, John - Wed, 7 Apr 2004 13:26:48 -0400 (EDT)
  - M. David Peterson - Wed, 7 Apr 2004 15:09:42 -0400 (EDT)
- Hansen, John - Wed, 7 Apr 2004 15:23:05 -0400 (EDT)
- Hansen, John - Thu, 8 Apr 2004 13:20:32 -0400 (EDT)
  - Message not available
    - Wendell Piez - Thu, 8 Apr 2004 13:36:48 -0400 (EDT) <=
- Hansen, John - Fri, 9 Apr 2004 12:28:32 -0400 (EDT)
  - Message not available
    - Wendell Piez - Fri, 9 Apr 2004 17:17:57 -0400 (EDT)

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