Re: [xsl] Re: Grouping by attribute

[Martin Honnen <Martin.Honnen@xxxxxx>]

Lajos Joo wrote:
> I am using xmlspy for testing with the built in xslt engine which said that it is not a node item.
> And in java:
> Exception dropped during XSLT transformation: net.sf.saxon.trans.DynamicError: Required item type of second operand of 'intersect' is node(); supplied value has item type xs:string

I can see that happening when your complete XML has more than those 
'par' element and that way the template is applied without passing in a 
value for the parameter.

In that case it might be better to introduce a mode to process those 
descendants of 'par' elements e.g.

<xsl:stylesheet
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
  version="2.0"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema";
  exclude-result-prefixes="xsd">

  <xsl:output indent="yes"/>

  <xsl:template match="@* | node()">
    <xsl:copy>
      <xsl:apply-templates select="@*, node()"/>
    </xsl:copy>
  </xsl:template>

  <xsl:template match="node()" mode="m1">
    <xsl:param name="cn"/>
    <xsl:if test="descendant-or-self::node() intersect $cn">
      <xsl:copy>
        <xsl:apply-templates select="@*"/>
        <xsl:apply-templates select="node()" mode="m1">
          <xsl:with-param name="cn" select="$cn"/>
        </xsl:apply-templates>
      </xsl:copy>
    </xsl:if>
  </xsl:template>

  <xsl:template match="par">
    <xsl:variable name="p" as="element()" select="."/>
    <xsl:for-each-group select="descendant::node()" 
group-ending-with="linebreak">
      <xsl:variable name="lb" as="element()?" 
select="current-group()[self::linebreak]"/>
      <par>
        <xsl:apply-templates select="$p/@*"/>
        <xsl:apply-templates 
select="$p/node()[descendant-or-self::node() intersect (current-group() 
except $lb)]" mode="m1">
          <xsl:with-param name="cn" select="current-group() except $lb"/>
        </xsl:apply-templates>
      </par>
    </xsl:for-each-group>
  </xsl:template>

</xsl:stylesheet>


--

	Martin Honnen
	http://msmvps.com/blogs/martin_honnen/