source: BOOK/stylesheets/lfs-xsl/docbook-xsl-snapshot/xhtml/db5strip.xsl@ ba61c16

<?xml version="1.0" encoding="US-ASCII"?>
<!--This file was created automatically by html2xhtml-->
<!--from the HTML stylesheets. Do not edit this file.-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:ng="http://docbook.org/docbook-ng" xmlns:db="http://docbook.org/ns/docbook" xmlns:exsl="http://exslt.org/common" xmlns="http://www.w3.org/1999/xhtml" exclude-result-prefixes="db ng exsl" version="1.0">

<xsl:import href="docbook.xsl"/>

<xsl:output method="xml" encoding="UTF-8" indent="no" doctype-public="-//W3C//DTD XHTML 1.0 Transitional//EN" doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"/>

<xsl:template match="/">
  <xsl:choose>
    <!-- include extra test for Xalan quirk -->
    <xsl:when test="(function-available('exsl:node-set') or                      contains(system-property('xsl:vendor'),                        'Apache Software Foundation'))                     and (*/self::ng:* or */self::db:*)">
      <!-- Hack! If someone hands us a DocBook V5.x or DocBook NG document,
           toss the namespace and continue. Someday we'll reverse this logic
           and add the namespace to documents that don't have one.
           But not before the whole stylesheet has been converted to use
           namespaces. i.e., don't hold your breath -->
      <xsl:message>Stripping namespace from DocBook 5 document.</xsl:message>
      <xsl:apply-templates mode="stripNS"/>
    </xsl:when>
    <xsl:otherwise>
      <xsl:message terminate="yes">
        <xsl:text>Cannot strip without exsl:node-set.</xsl:text>
      </xsl:message>
    </xsl:otherwise>
  </xsl:choose>
</xsl:template>

</xsl:stylesheet>