Sort XML File Output as XML

[Jakos23]

Can anyone tell me where I'm going wrong, what I'm trying to do is sort the following xml file, by the <start> element and output the data as xml.

XML FILE:

<?xml-stylesheet type="xml" href="sort.xsl"?>
<markers>
<book ID="War of the Worlds">
    <highlights>
        <highlight> 
            <start>2001</start>
            <end>2005</end>
        </highlight>
        <highlight>
            <start>2380</start>
            <end>2410</end>
        </highlight>
        <highlight>
            <start>10</start>
            <end>32</end>
        </highlight>
    </highlights>
</book>
<book ID="Help">
    <highlights>
        <highlight>
            <start>12</start>
            <end>30</end>
        </highlight>
        <highlight>
            <start>2</start>
            <end>6</end>
        </highlight>
    </highlights>
</book>
</markers>

using the following xsl style sheet

<xsl:stylesheet version="1.0" xmlns:xsl="[URL unfurl="true"]http://www.w3.org/1999/xsl/transform">[/URL]
<xsl:output method="xml" version="1.0"
encoding="utf-8"/>
<xsl:template match="markers/book/highlights">


<xsl:for-each select="highlight">
<xsl:sort select="start"
data-type="number"
order="ascending"/>
<xsl:value-of select="start"/>
</xsl:for-each>


</xsl:template>
</xsl:stylesheet>

 

[JontyMC]

There's a few problems with the code. It's trying to output the value of the node rather than copying the node itself. Also, it only matches the highlight nodes, therefore knows nothing about the ancestors. Try:

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="[URL unfurl="true"]http://www.w3.org/1999/XSL/Transform">[/URL]
  <xsl:output method="xml" version="1.0" encoding="utf-8"/>
  <xsl:template match="@*|node()">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()"/>
    </xsl:copy>
  </xsl:template>
  <xsl:template match="highlights">
    <highlights>
      <xsl:for-each select="highlight">
        <xsl:sort select="start" data-type="number" order="ascending"/>
        <xsl:copy-of select="."/>
      </xsl:for-each>
    </highlights>
  </xsl:template>
</xsl:stylesheet>