samples/trax/xsl/foo.xsl

<xsl:stylesheet 
      xmlns:xsl='http://www.w3.org/1999/XSL/Transform' version='1.0'
      xmlns:bar="http://apache.org/bar"
      exclude-result-prefixes="bar">

  <!--
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements. See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership. The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the  "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
  -->
      
  <xsl:include href="inc1/inc1.xsl"/>
      
  <xsl:param name="a-param">default param value</xsl:param>
  
  <xsl:template match="bar:element">
    <bar>
      <param-val>
        <xsl:value-of select="$a-param"/><xsl:text>, </xsl:text>
        <xsl:value-of select="$my-var"/>
      </param-val>
      <data><xsl:apply-templates/></data>
    </bar>
  </xsl:template>
      
  <xsl:template 
      match="@*|*|text()|processing-instruction()">
    <xsl:copy>
      <xsl:apply-templates 
         select="@*|*|text()|processing-instruction()"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>