3. Template Usage

<xsl:template name="proc">
   <xsl:param name="txt" select="''"/>
   <value>
      <xsl:choose>
         <xsl:when test="contains($txt, '|')" >
            <xsl:value-of select="substring-before($txt, '|')"/>
         </xsl:when>
         <xsl:otherwise>
            <xsl:value-of select="$txt"/>
         </xsl:otherwise>
      </xsl:choose>
   </value>
   <xsl:variable name="left" select="substring-after($txt, '|')"/>
   <xsl:if test="string-length($left)>1" >
      <xsl:call-template name="proc" >
         <xsl:with-param name="txt" select="$left"/>
      </xsl:call-template>
   </xsl:if>
</xsl:template>

3.1 In the template above name the computing technique being used?

Recursion

1 points

3.2 Please give one benefit and one disadvantage of this technique

Benefit Generates new variables on each iteration Disadvantage Resource hungry

2 points

<xsl:template match="h:parameter[@name='order']/h:value">
   <xsl:variable name="values">
      <xsl:call-template name="proc" >
         <xsl:with-param name="txt" select="text()"/>
      </xsl:call-template>
   </xsl:variable>
   <xsl:for-each select="xalan:nodeset($values)/value">
      <SetGroupTitleJournalOrder group="1" title="{.}" sort="{position()}"/>
   </xsl:for-each>
</xsl:template>

3.2 In the XSL 1.0 template above describe the purpose of xalan:nodeset?

It's a XalanJ extension function that allows processing of result tree fragments in XSLT 1.0

3.3 Why is the following stylesheet often used by XSL developers?

<?xml version="1.0"?> 
<xsl:stylesheet version="1.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="node()|@*"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>

______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________