RE: [xsl] Count of unique elements [XSLT 1.0]

["Kirov Plamen" <pkirov@xxxxxxxxx>]

I want to count unique elements without using the Muenchian method.
My XSL is:

<?xml version='1.0' encoding='utf-8' ?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">
<xsl:output method="html"/>
<xsl:variable name="products" select="//product"/>
<!-- Template for our root rule -->
<xsl:template match="/">
	<xsl:apply-templates/>
</xsl:template>
<!-- Template for our "products" rule -->
<xsl:template match="products">
	<xsl:call-template name="Style1"/>
	<h2>Grouping of Products by Region, then by Product Name </h2>
	<xsl:for-each select="$products">
	  	<xsl:sort select="name" order="ascending"/>
	 	<xsl:variable name="region" select="region"/>
        <xsl:if
test="generate-id(.)=generate-id($products[region=$region])">
	  		<h3><xsl:value-of select="region"/> region</h3>
  			<table border="1">
   		   		<tr>
					<th>Product Name</th>
					<th>Price</th>
					<th>Region</th>
				</tr>
	     		<xsl:for-each
select="$products[region=$region]">
     			<xsl:sort select="name"/>
	    			<tr>
					<td><xsl:value-of
select="name"/></td>
					<td><xsl:value-of
select="price"/></td>
					<td><xsl:value-of
select="region"/></td>
				</tr>
   			</xsl:for-each>
 			</table>
			<br/><br/>
       </xsl:if>
	</xsl:for-each>
</xsl:template>
</xsl:stylesheet>

> -----Original Message-----
> From: Michael Kay [mailto:mike@xxxxxxxxxxxx]
> Sent: Friday, November 24, 2006 11:16 AM
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: RE: [xsl] Count of unique elements [XSLT 1.0]
>
> Counting unique elements is a simple example of the grouping problem.
Read
> about grouping in XSLT 1.0 at
http://www.jenitennison.com/xslt/grouping
>
> Michael Kay
> http://www.saxonica.com/
>
> > -----Original Message-----
> > From: Kirov Plamen [mailto:pkirov@xxxxxxxxx]
> > Sent: 24 November 2006 09:05
> > To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> > Subject: [xsl] Count of unique elements [XSLT 1.0]
> >
> > Hi all,
> >
> > The XML:
> >
> > 	<product>
> > 		<prodid>V667320</prodid>
> > 		<name>Battery Pack</name>
> > 		<price>$20</price>
> > 		<quantity>178</quantity>
> > 		<region>SouthWest</region>
> > 	</product>
> > 	<product>
> > 		<prodid>M382932</prodid>
> > 		<name>CD Visor Organizer</name>
> > 		<price>$19</price>
> > 		<quantity>129</quantity>
> > 		<region>NorthWest</region>
> > 	</product>
> > 	<product>
> > 		<prodid>U3923839</prodid>
> > 		<name>Rock n Roll Supercart</name>
> > 		<price>$150</price>
> > 		<quantity>200</quantity>
> > 		<region>SouthWest</region>
> > 	</product>
> > 	<product>
> > 		<prodid>Q3929302</prodid>
> > 		<name>Digital Tire Guage</name>
> > 		<price>$40</price>
> > 		<quantity>623</quantity>
> > 		<region>NorthWest</region>
> > 	</product>
> >
> > I want to count the unique elements 'region' into XML. In
> > this example the count result must be "2" - there's two
> > unique 'region': NorthWest and SouthWest.
> >
> > Any help is appreciated.
> >
> > BR
> > Plamen