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Re: Meunchian Method - Grouping with attributes

Subject: Re: Meunchian Method - Grouping with attributes
From: "G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>
Date: Sat, 26 Jan 2002 10:17:59 -0500
meunchian method
At 2002-01-25 15:56 -0600, Magick, Brian wrote:
I'm having a tough time grouping on an attribute where I need to get
only unique values of the domain attribute for each unique technology.

I find double-level grouping is more easily implemented using variables than using keys.

I hope the example below helps.

.................... Ken

t:\ftemp>type brian.xml
<?xml version="1.0" encoding="utf-8"?>
      <technology domain="xyz">tech1</technology>
      <technology domain="abc">tech1</technology>
      <technology domain="xyz">tech2</technology>
      <technology domain="xxx">tech2</technology>
      <technology domain="xyz">tech3</technology>
      <technology domain="xyz">tech1</technology>
      <technology domain="abc">tech1</technology>
      <technology domain="zzz">tech2</technology>
      <technology domain="xxx">tech2</technology>
      <technology domain="aaa">tech3</technology>

t:\ftemp>type brian.xsl
<?xml version="1.0" encoding="utf-8"?>

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"

<xsl:output omit-xml-declaration="yes"/>

<xsl:template match="/">
  <xsl:variable name="technologies" select="//technology"/>
  <xsl:for-each select="$technologies">
    <xsl:if test="generate-id(.)=
      <xsl:value-of select="."/><xsl:text>
      <xsl:variable name="domains"
      <xsl:for-each select="$domains">
        <xsl:if test="generate-id(.)=
          <xsl:text>     domain = </xsl:text>
          <xsl:value-of select="."/><xsl:text>


t:\ftemp>xt brian.xml brian.xsl
     domain = xyz
     domain = abc
     domain = xyz
     domain = xxx
     domain = zzz
     domain = xyz
     domain = aaa


-- Upcoming: 3-days XSLT/XPath and/or 2-days XSLFO - Feb 18-22, 2002

G. Ken Holman                mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
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