Question

I have a xml given below:

<root title='الصفحة الرئيسة'>    <item title='الصفحة الرئيسة' itemuri='tcm:8-29-4' ShowInNav='True' type='sg' pageuri='tcm:8-10592-64' sLink='/ara/index.aspx'>       <item title='من نحن' itemuri='tcm:8-779-4' ShowInNav='True' type='sg' pageuri='tcm:8-9934-64' navorder='00500' sLink='/ara/about/index.aspx'>       </item>       <item title='برامجنا' itemuri='tcm:8-817-4' ShowInNav='True' type='sg' pageuri='tcm:8-10112-64' navorder='00100' sLink='/ara/courses/language-study-abroad.aspx'>       </item>       <item title='مدارسنا' itemuri='tcm:8-824-4' ShowInNav='True' type='sg' pageuri='tcm:8-10162-64' navorder='00300' sLink='/ara/schools/english-language.aspx'>        </item>     </item> </root> 

Now I want to the value of maximum navorder, so that I can use that value further in ‘if‘ condition.

Answer 1

Below is the XSLT 1.0 code of two possible solutions.

A third solution is to use EXSLT.

A fourth solution is to use the maximum template of FXSL.

<xsl:stylesheet version='1.0'  xmlns:xsl='http://www.w3.org/1999/XSL/Transform'>  <xsl:output method='text'/>      <xsl:template match='/'>       <xsl:variable name='vMax1' select=        '*/*/*/@navorder[not(. &lt; ../../*/@navorder)][3]'/>         $vMax1: <xsl:value-of select='$vMax1'/>        <xsl:variable name='vMax2'>         <xsl:call-template name='max'>           <xsl:with-param name='pSeq'                 select='*/*/*/@navorder'/>         </xsl:call-template>       </xsl:variable>         $vMax2: <xsl:value-of select='$vMax2'/>      </xsl:template>      <xsl:template name='max'>       <xsl:param name='pSeq'/>        <xsl:variable name='vLen' select='count($pSeq)'/>        <xsl:if test='$vLen > 0'>         <xsl:choose>           <xsl:when test='$vLen = 1'>             <xsl:value-of select='$pSeq[1]'/>           </xsl:when>           <xsl:otherwise>             <xsl:variable name='vHalf'               select='floor($vLen div 2)'/>              <xsl:variable name='vMax1'>               <xsl:call-template name='max'>                 <xsl:with-param name='pSeq'                   select='$pSeq[not(position() > $vHalf)]'/>               </xsl:call-template>             </xsl:variable>              <xsl:variable name='vMax2'>               <xsl:call-template name='max'>                 <xsl:with-param name='pSeq'                   select='$pSeq[position() > $vHalf]'/>               </xsl:call-template>             </xsl:variable>              <xsl:choose>               <xsl:when test='$vMax1 >= $vMax2'>                 <xsl:value-of select='$vMax1'/>               </xsl:when>               <xsl:otherwise>                 <xsl:value-of select='$vMax2'/>               </xsl:otherwise>             </xsl:choose>           </xsl:otherwise>         </xsl:choose>       </xsl:if>     </xsl:template> </xsl:stylesheet> 

When the above transformatio is applied on the original XML document:

<root title='الصفحة الرئيسة'>     <item title='الصفحة الرئيسة' itemuri='tcm:8-29-4'           ShowInNav='True' type='sg'           pageuri='tcm:8-10592-64'           sLink='/ara/index.aspx'>         <item title='من نحن' itemuri='tcm:8-779-4'               ShowInNav='True' type='sg'               pageuri='tcm:8-9934-64'               navorder='00500'               sLink='/ara/about/index.aspx'/>         <item title='برامجنا' itemuri='tcm:8-817-4'               ShowInNav='True' type='sg'               pageuri='tcm:8-10112-64'               navorder='00100'               sLink='/ara/courses/language-study-abroad.aspx'/>         <item title='مدارسنا' itemuri='tcm:8-824-4'               ShowInNav='True' type='sg'               pageuri='tcm:8-10162-64'               navorder='00300'               sLink='/ara/schools/english-language.aspx'/>   </item> </root> 

the wanted result is produced:

   $vMax1: 00500     $vMax2: 00500