Re: [xsl] Unique headers

Subject: Re: [xsl] Unique headers
From: tcn@xxxxxxxxxxxxx (Trevor Nash)
Date: Thu, 05 Apr 2001 14:23:11 GMT

The following produces the output you specify, using Saxon 6.2.2.  It
differs from your XSL only in that
  - the grpTypes string must start with a space, or the 'Mystery'
titles appear without a heading.
  - I have added a space before the first
    <xsl:value-of select="../Title"/> to get the required indent.

You seem to have either
  * a bug in your XSLT processor which gets the test involving
'preceeding' wrong
  * what you posted is not what you are running
  * there is another template matching "Type" elsewhere in your
stylesheet which is preventing this one being triggered.

Perhaps you are over-simplifying your problem?  I am guessing that you
may in fact want to do grouping/sorting on XML which is not in the
required order, i.e. the 'Horror' titles do not in fact appear


<xsl:variable name="grpTypes" select="' Mystery Horror'"/>
<xsl:template match="text()"/>
 <xsl:template match="Type">
     <xsl:when test="contains($grpTypes, concat(' ', .))">
       <xsl:if test="not(. = preceding::Type)">
         <xsl:value-of select="concat(., '&#xA;')"/>
       <xsl:text> </xsl:text><xsl:value-of select="../Title"/>
       <xsl:value-of select="../Title"/>

 Ellen Brokovich
 Pelican Brief
 Nightmare on Elm Street
 Blair Witch Project
The Emperor's Groove
Toy Story

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