At 2002-10-04 12:11 +0200, Ulf Carlsson wrote:
I only want to group each articlerow in one variant at time.
When I need to do this, I use variables instead of key tables, since
variables collect only those nodes to be grouped.
Any hint/help would be appreciated
A solution is below. Note in the algorithm that only the nodes in the
collection being grouped are examined for uniqueness and revisited for
detail. When not needing a node set of the unique members, this technique
is very useful.
I hope this helps.
.................... Ken
T:\ftemp>type ulf.xml
<doc>
<variant>
<articlerow>
<nev_article_pos>1</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>12</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>12</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<parttitle>Hello World</parttitle>
<articlerow>
<nev_article_pos>18</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>19</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>19</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
</variant>
<variant>
<articlerow>
<nev_article_pos>4</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<parttitle>Hello World</parttitle>
<articlerow>
<nev_article_pos>6</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>4</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>18</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>19</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
<articlerow>
<nev_article_pos>19</nev_article_pos>
<article>
<nev_article>009504145</nev_article>
</article>
</articlerow>
</variant>
</doc>
T:\ftemp>type ulf.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 indent="yes"/>
<xsl:template match="doc">
<document>
<partinfo>
<xsl:for-each select="variant">
<partlist>
<xsl:variable name="articlerows" select="articlerow"/>
<xsl:for-each select="$articlerows | parttitle">
<xsl:if test="self::parttitle">
<title><xsl:value-of select="."/></title>
</xsl:if>
<xsl:if test="generate-id(.)=
generate-id($articlerows[nev_article_pos=
current()/nev_article_pos])">
<partcallout>
<calloutitem>
<xsl:value-of select="nev_article_pos"/>
<xsl:for-each select="$articlerows[nev_article_pos=
current()/nev_article_pos]">
<article>
<xsl:value-of select="article/nev_article"/>
</article>
</xsl:for-each>
</calloutitem>
</partcallout>
</xsl:if>
</xsl:for-each>
</partlist>
</xsl:for-each>
</partinfo>
</document>
</xsl:template>
</xsl:stylesheet>
T:\ftemp>xt ulf.xml ulf.xsl ulf.out
T:\ftemp>type ulf.out
<?xml version="1.0" encoding="utf-8"?>
<document>
<partinfo>
<partlist>
<partcallout>
<calloutitem>1<article>009504145</article>
</calloutitem>
</partcallout>
<partcallout>
<calloutitem>12<article>009504145</article>
<article>009504145</article>
</calloutitem>
</partcallout>
<title>Hello World</title>
<partcallout>
<calloutitem>18<article>009504145</article>
</calloutitem>
</partcallout>
<partcallout>
<calloutitem>19<article>009504145</article>
<article>009504145</article>
</calloutitem>
</partcallout>
</partlist>
<partlist>
<partcallout>
<calloutitem>4<article>009504145</article>
<article>009504145</article>
</calloutitem>
</partcallout>
<title>Hello World</title>
<partcallout>
<calloutitem>6<article>009504145</article>
</calloutitem>
</partcallout>
<partcallout>
<calloutitem>18<article>009504145</article>
</calloutitem>
</partcallout>
<partcallout>
<calloutitem>19<article>009504145</article>
<article>009504145</article>
</calloutitem>
</partcallout>
</partlist>
</partinfo>
</document>
T:\ftemp>rem Done!
--
G. Ken Holman mailto:gkholman(_at_)CraneSoftwrights(_dot_)com
Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/
Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (F:-0995)
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