RELEASE_2_1_13/src/blocks/fop/samples/misc/fix-imagelinks.xsl

<?xml version="1.0" encoding="utf-8"?>
<!--
  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

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  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.
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<!-- A small stylesheet to make image links in *.fo files absolute.  This is
currently necessary because FOP doesn't know the 'context' in which it is
operating, and so cannot resolve relative URLs.  This hack will go away once the
Cocoon<->FOP link improves (it's fixed for CVS trunk FOP, but that isn't too
usable yet).  -->

<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:fo="http://www.w3.org/1999/XSL/Format">

  <!-- Absolute path to context root -->
  <xsl:param name="ctxroot" select="'[ctxroot]'"/>

  <!-- context-relative path of current directory -->
  <xsl:param name="dir" select="'[dir]'"/>

  <xsl:template match="fo:external-graphic/@src">
    <xsl:attribute name="src">
      <xsl:value-of select="$ctxroot"/>
      <xsl:choose>
        <xsl:when test="starts-with(., '/')">
          <xsl:value-of select="."/>
        </xsl:when>
        <xsl:otherwise>
          <xsl:value-of select="$dir"/>
          <xsl:value-of select="."/>
        </xsl:otherwise>
      </xsl:choose>
    </xsl:attribute>
  </xsl:template>


  <!-- Copy across everything else unchanged. -->
  <xsl:template match="node()|@*" priority="-1">
    <xsl:copy>
      <xsl:apply-templates select="@*"/>
      <xsl:apply-templates/>
    </xsl:copy>
  </xsl:template>

</xsl:stylesheet>