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Re: [xsl] Positional Grouping Problem

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Hi Mukul,

You need to change the generate-group-elements template to stop copying when it encounters something different of HI, you can do this like below for instance:

  <xsl:template name="generate-group-elements">
    <xsl:param name="list" />

    <xsl:if test="$list[1]='HI'">
      <xsl:copy-of select="$list[1]" />
      <xsl:call-template name="generate-group-elements">
        <xsl:with-param name="list" select="$list[position() > 1]" />
      </xsl:call-template>
    </xsl:if>
  </xsl:template>

Alternatively you can place inside the list parameter only the desired Z elements.

Best Regards,
George
---------------------------------------------------------------------
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com

Mukul Gandhi wrote:

I have this XML file -
<?xml version="1.0"?>
<X>
  <Y>
    <Z>HI</Z>
    <Z>HI</Z>
    <Z>HI</Z>
    <Z>YES</Z>
    <Z>HI</Z>
    <Z>HI</Z>
  </Y>
</X>

I desire output -
<?xml version="1.0" encoding="utf-8"?>
<X>
   <Y>
      <group>
         <Z>HI</Z>
         <Z>HI</Z>
         <Z>HI</Z>
      </group>
      <Z>YES</Z>
      <group>
         <Z>HI</Z>
         <Z>HI</Z>
      </group>
   </Y>
</X>

i.e. all consecutive Z's with string HI should be grouped in element <group>

I have written this stylesheet so far to solve this problem -
<?xml version="1.0"?> <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" indent="yes" /> <xsl:template match="/X"> <X>
<Y>
<xsl:apply-templates select="Y" /> </Y>
</X> </xsl:template>
<xsl:template match="Y">
<xsl:apply-templates select="Z" />
</xsl:template>
<xsl:template match="Z">
<xsl:choose>
<xsl:when test=". = 'YES'">
<xsl:copy-of select="." />
</xsl:when>
<xsl:when test="((. = 'HI') and not(preceding-sibling::Z[1] = 'HI'))">
<group>
<xsl:copy-of select="." />
<xsl:call-template name="generate-group-elements">
<xsl:with-param name="list" select="following-sibling::Z" />
</xsl:call-template>
</group>
</xsl:when>
</xsl:choose> </xsl:template>
<xsl:template name="generate-group-elements">
<xsl:param name="list" />
<xsl:if test="$list[1]">
<xsl:copy-of select="$list[1]" />
<xsl:call-template name="generate-group-elements">
<xsl:with-param name="list" select="$list[position() > 1]" />
</xsl:call-template>
</xsl:if> </xsl:template>
</xsl:stylesheet>

But I am getting output -
<?xml version="1.0" encoding="utf-8"?>
<X>
   <Y>
      <group>
         <Z>HI</Z>
         <Z>HI</Z>
         <Z>HI</Z>
         <Z>YES</Z>
         <Z>HI</Z>
         <Z>HI</Z>
      </group>
      <Z>YES</Z>
      <group>
         <Z>HI</Z>
         <Z>HI</Z>
      </group>
   </Y>
</X>

Can somebody please find the bug in my stylesheet?

I have tested with Xalan-J 2.6.0, Saxon 6.5.3 and MSXML4 ; and I am
getting same output with all these three XSLT processors. I am hinging
slightly to Xalan and Saxon.

Regards,
Mukul

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