Re: first element of type x in a group

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Subject: Re: first element of type x in a group
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
Date: Tue, 21 Aug 2001 17:13:37 -0400

Ben,

At 03:54 PM 8/21/01, you wrote:

I was wondering if anyone would know how to express the following...
<page>
<command></command>
<info></info>
<field>
   <x></x>
   <y></y>
</field>
<field>
   <x></x>
  <y></y>
</field>
</page>
When I am in x i want to figure out if I am in the first <field>.


<xsl:if test="not(parent::field/preceding::field)">
...</xsl:if>

will test true if the parent is not a field or if the parent field has no field elements preceding it (meaning among the elements that open and close before it, which doesn't include its ancestors).

"not(../preceding-sibling::field)" is almost the same test, and is preferable from some points of view. In particular, you should use preceding-sibling if you know all your field elements will be at the same level.

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
----------------------------------------------------------------------
  Mulberry Technologies: A Consultancy Specializing in SGML and XML
======================================================================

XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list

Current Thread
first element of type x in a group Ben Skelton - Tue, 21 Aug 2001 16:01:59 -0400 (EDT) Wendell Piez - Tue, 21 Aug 2001 17:16:23 -0400 (EDT) <=

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