XSLT 2.0: Definition of a structure and its use

["Agnisys Technology \(P\) Ltd." <agnisys@yahoo.com>]

Hi all,
  I'm trying to emulate a definition of a structure and a call to the definition in XML. I'm
having trouble getting the required output. (Note: this message was posted on the XSL list, but I
don't have a solution yet).

Input XML is :
<a>
    <b offset="5">
         <reg>reg_1</reg>
        <reg>reg_2</reg>
        <reg href="REGDEF1"></reg>  <!-- this is the call to a structure -->
        <reg>reg_3</reg>
     </b>
  
    <!-- this is the definition of the structure -->
    <regdef name="REGDEF1">
          <reg>reg_10</reg>
         <reg>reg_20</reg>
     </regdef>
 </a>
  
XSLT is :
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"; version="2.0">

    <xsl:template match="*">
        <xsl:copy>
            <xsl:copy-of select="@*"/>
            <xsl:apply-templates/>
        </xsl:copy>
    </xsl:template>
    
    <xsl:template match="reg[@href]">
        <xsl:variable name="reg_href">
            <xsl:copy-of select="//regdef[@name=current()/@href]"/>
        </xsl:variable>
        <xsl:apply-templates select="$reg_href/*"/>
    </xsl:template>
    
    <xsl:template match="regdef"/>
    
    <xsl:template match="reg">
        <br/>Register : <xsl:value-of select="."/>
        Offset = <xsl:value-of select="../@offset"/>
        Prev-Sibling count = <xsl:value-of select="count(preceding-sibling::reg)"/>
    </xsl:template>

</xsl:stylesheet>

Output is : 

Register : reg_1 Offset = 5 Prev-Sibling count = 0 
Register : reg_2 Offset = 5 Prev-Sibling count = 1 
Register : reg_3 Offset = 5 Prev-Sibling count = 3 

I want the output to say:
Register : reg_1 Offset = 5 Prev-Sibling count = 0 
Register : reg_2 Offset = 5 Prev-Sibling count = 1 
Register : reg_10 Offset = 5 Prev-Sibling count = 2 
Register : reg_20 Offset = 5 Prev-Sibling count = 3 
Register : reg_3 Offset = 5 Prev-Sibling count = 4 

Thanks,
Anupam.




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