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At 2003-09-10 14:45 +0200, Kloeck, Erwin wrote:
your solution works. This was what I needed. Now I have to read a little about what xls:key does to also understand this. :-) Actually, when doing subgrouping on a tree you don't *always* have to use keys. When I teach grouping in XSLT 1.0 I go through three different methods: by axes, by variables and by keys. I find that multi-level grouping or subgrouping can be a lot easier by variables when you don't need to act on node sets. But I also go over keys as a standalone concept, not just in grouping ... a week from Monday we have a public European delivery of our courses that you might be interested in where we go over every element, attribute and function of both XSLT and XPath, and in a separate course that week, every formatting object of XSL-FO. I hope the example below helps. .................... Ken T:\ftemp>type erwin.xml
<?xml version="1.0" encoding="iso-8859-1"?>
<top>
<page>
<entry text='aaa'/>
<entry text='bbb'/>
<entry text='aaa'/>
</page>
<page>
<entry text='ccc'/>
<entry text='bbb'/>
<entry text='ccc'/>
</page>
</top>T:\ftemp>type erwin.xsl
<?xml version="1.0" encoding="iso-8859-1"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0"><xsl:output method="text"/> <xsl:template match="top"> <xsl:for-each select="page"> Page <xsl:value-of select="position()"/>: <xsl:variable name="entries" select="entry"/> <xsl:for-each select="$entries"> <xsl:if test="generate-id(.)=generate-id($entries[@text=current()/@text])"> Entry: <xsl:value-of select="@text"/> </xsl:if> </xsl:for-each> </xsl:for-each> </xsl:template> </xsl:stylesheet> T:\ftemp>saxon erwin.xml erwin.xsl Page 1: Entry: aaa
Entry: bbb
Page 2: Entry: ccc
Entry: bbb
T:\ftemp>
G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxxxxxxxx Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/ Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (F:-0995) ISBN 0-13-065196-6 Definitive XSLT and XPath ISBN 0-13-140374-5 Definitive XSL-FO ISBN 1-894049-08-X Practical Transformation Using XSLT and XPath ISBN 1-894049-11-X Practical Formatting Using XSL-FO Member of the XML Guild of Practitioners: http://XMLGuild.info Male Breast Cancer Awareness http://www.CraneSoftwrights.com/s/bc XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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