tinykernel/docs/xml/combine.xslt

<!-- XSLT script to combine the generated output into a single file. 
     If you have xsltproc you could use:
     xsltproc combine.xslt index.xml >all.xml
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
  <xsl:output method="xml" version="1.0" indent="no" standalone="yes" />
  <xsl:template match="/">
    <doxygen version="{doxygenindex/@version}" xml:lang="{doxygenindex/@xml:lang}">
      <!-- Load all doxygen generated xml files -->
      <xsl:for-each select="doxygenindex/compound">
        <xsl:copy-of select="document( concat( @refid, '.xml' ) )/doxygen/*" />
      </xsl:for-each>
    </doxygen>
  </xsl:template>
</xsl:stylesheet>