<!--
   XML to HTML Verbatim Formatter with Syntax Highlighting
   Version 1.1
   LGPL (c) Oliver Becker, 2002-08-22
   obecker@informatik.hu-berlin.de
   Contributors: Doug Dicks, added auto-indent (parameter indent-elements)
                 for pretty-print
-->
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:xd="http://www.pnp-software.com/XSLTdoc" xmlns:verb="http://informatik.hu-berlin.de/xmlverbatim" version="1.0" exclude-result-prefixes="verb">

   <xsl:output method="html" omit-xml-declaration="yes" indent="no" />

   <xsl:param name="indent-elements" select="false()" />

   <!-- root -->
   <xsl:template match="/" mode="xmlverb">
      <xsl:text>
</xsl:text>
      <xsl:comment>
         <xsl:text> converted by xmlverbatim.xsl 1.1, (c) O. Becker </xsl:text>
      </xsl:comment>
      <xsl:text>
</xsl:text>
      <div class="xmlverb-default">
         <xsl:apply-templates mode="xmlverb">
            <xsl:with-param name="indent-elements" select="$indent-elements" />
         </xsl:apply-templates>
      </div>
      <xsl:text>
</xsl:text>
   </xsl:template>

   <!-- wrapper -->
   <xsl:template match="verb:wrapper">
      <xsl:apply-templates mode="xmlverb">
         <xsl:with-param name="indent-elements" select="$indent-elements" />
      </xsl:apply-templates>
   </xsl:template>

   <xsl:template match="verb:wrapper" mode="xmlverb">
      <xsl:apply-templates mode="xmlverb">
         <xsl:with-param name="indent-elements" select="$indent-elements" />
      </xsl:apply-templates>
   </xsl:template>
  
   <xsl:template match="*" mode="xmlverb">
     <xsl:param name="indent-elements" select="false()" />
      <xsl:param name="indent" select="''" />
      <xsl:param name="indent-increment" select="'   '" /> 
     <xsl:choose>
       <xsl:when test="self::xd:doc">
         <div class="xd">
           <!-- Fix indentation (dublicate, because indentation needs to be inside the div tag) -->
           <xsl:value-of select="translate(preceding-sibling::text()[last()],' ',' ')" />
           <xsl:apply-templates select="self::*" mode="xmlverb_1">
              <xsl:with-param name="indent-elements" select="$indent-elements" />
              <xsl:with-param name="indent" select="concat($indent, $indent-increment)" />
              <xsl:with-param name="indent-increment" select="$indent-increment" />
           </xsl:apply-templates>
         </div>
       </xsl:when>
       <xsl:otherwise><xsl:apply-templates select="self::*" mode="xmlverb_1">
              <xsl:with-param name="indent-elements" select="$indent-elements" />
              <xsl:with-param name="indent" select="concat($indent, $indent-increment)" />
              <xsl:with-param name="indent-increment" select="$indent-increment" />
           </xsl:apply-templates></xsl:otherwise>
     </xsl:choose>
   </xsl:template>

   <!-- element nodes -->
   <xsl:template match="*" mode="xmlverb_1">
      <xsl:param name="indent-elements" select="false()" />
      <xsl:param name="indent" select="''" />
      <xsl:param name="indent-increment" select="'   '" />
      <a name="{generate-id(.)}" />
      <xsl:if test="$indent-elements">
         <br />
         <xsl:value-of select="$indent" />
      </xsl:if>
      <xsl:text>&lt;</xsl:text>
      <xsl:variable name="ns-prefix" select="substring-before(name(),':')" />
      <xsl:if test="$ns-prefix != ''">
         <span class="xmlverb-element-nsprefix">
            <xsl:value-of select="$ns-prefix" />
         </span>
         <xsl:text>:</xsl:text>
      </xsl:if>
      <span class="xmlverb-element-name">
         <xsl:value-of select="local-name()" />
      </span>
      <xsl:variable name="pns" select="../namespace::*" />
      <xsl:if test="$pns[name()=''] and not(namespace::*[name()=''])">
         <span class="xmlverb-ns-name">
            <xsl:text> xmlns</xsl:text>
         </span>
         <xsl:text>=""</xsl:text>
      </xsl:if>
      <xsl:for-each select="namespace::*">
         <xsl:if test="not($pns[name()=name(current()) and .=current()])">
            <xsl:call-template name="xmlverb-ns" />
         </xsl:if>
      </xsl:for-each>
      <xsl:for-each select="@*">
         <xsl:call-template name="xmlverb-attrs" />
      </xsl:for-each>
      <xsl:choose>
         <xsl:when test="node()">
            <xsl:text>&gt;</xsl:text>
            <xsl:apply-templates mode="xmlverb">
              <xsl:with-param name="indent-elements" select="$indent-elements" />
              <xsl:with-param name="indent" select="concat($indent, $indent-increment)" />
              <xsl:with-param name="indent-increment" select="$indent-increment" />
            </xsl:apply-templates>
            <xsl:if test="* and $indent-elements">
               <br />
               <xsl:value-of select="$indent" />
            </xsl:if>
            <xsl:text>&lt;/</xsl:text>
            <xsl:if test="$ns-prefix != ''">
               <span class="xmlverb-element-nsprefix">
                  <xsl:value-of select="$ns-prefix" />
               </span>
               <xsl:text>:</xsl:text>
            </xsl:if>
            <span class="xmlverb-element-name">
               <xsl:value-of select="local-name()" />
            </span>
            <xsl:text>&gt;</xsl:text>
         </xsl:when>
         <xsl:otherwise>
            <xsl:text> /&gt;</xsl:text>
         </xsl:otherwise>
      </xsl:choose>
      <xsl:if test="not(parent::*)"><br /><xsl:text>
</xsl:text></xsl:if>
   </xsl:template>

   <!-- attribute nodes -->
   <xsl:template name="xmlverb-attrs">
      <xsl:text> </xsl:text>
      <span class="xmlverb-attr-name">
         <xsl:value-of select="name()" />
      </span>
      <xsl:text>="</xsl:text>
      <span class="xmlverb-attr-content">
         <xsl:call-template name="html-replace-entities">
            <xsl:with-param name="text" select="normalize-space(.)" />
            <xsl:with-param name="attrs" select="true()" />
         </xsl:call-template>
      </span>
      <xsl:text>"</xsl:text>
   </xsl:template>

   <!-- namespace nodes -->
   <xsl:template name="xmlverb-ns">
      <xsl:if test="name()!='xml'">
         <span class="xmlverb-ns-name">
            <xsl:text> xmlns</xsl:text>
            <xsl:if test="name()!=''">
               <xsl:text>:</xsl:text>
            </xsl:if>
            <xsl:value-of select="name()" />
         </span>
         <xsl:text>="</xsl:text>
         <span class="xmlverb-ns-uri">
            <xsl:value-of select="." />
         </span>
         <xsl:text>"</xsl:text>
      </xsl:if>
   </xsl:template>

   <!-- text nodes -->
   <xsl:template match="text()" mode="xmlverb">
      <span class="xmlverb-text">
         <xsl:call-template name="preformatted-output">
            <xsl:with-param name="text">
               <xsl:call-template name="html-replace-entities">
                  <xsl:with-param name="text" select="." />
               </xsl:call-template>
            </xsl:with-param>
         </xsl:call-template>
      </span>
   </xsl:template>

   <!-- comments -->
   <xsl:template match="comment()" mode="xmlverb">
      <xsl:text>&lt;!--</xsl:text>
      <span class="xmlverb-comment">
         <xsl:call-template name="preformatted-output">
            <xsl:with-param name="text" select="." />
         </xsl:call-template>
      </span>
      <xsl:text>--&gt;</xsl:text>
      <xsl:if test="not(parent::*)"><br /><xsl:text>
</xsl:text></xsl:if>
   </xsl:template>

   <!-- processing instructions -->
   <xsl:template match="processing-instruction()" mode="xmlverb">
      <xsl:text>&lt;?</xsl:text>
      <span class="xmlverb-pi-name">
         <xsl:value-of select="name()" />
      </span>
      <xsl:if test=".!=''">
         <xsl:text> </xsl:text>
         <span class="xmlverb-pi-content">
            <xsl:value-of select="." />
         </span>
      </xsl:if>
      <xsl:text>?&gt;</xsl:text>
      <xsl:if test="not(parent::*)"><br /><xsl:text>
</xsl:text></xsl:if>
   </xsl:template>


   <!-- =========================================================== -->
   <!--                    Procedures / Functions                   -->
   <!-- =========================================================== -->

   <!-- generate entities by replacing &, ", < and > in $text -->
   <xsl:template name="html-replace-entities">
      <xsl:param name="text" />
      <xsl:param name="attrs" />
      <xsl:variable name="tmp">
         <xsl:call-template name="replace-substring">
            <xsl:with-param name="from" select="'&gt;'" />
            <xsl:with-param name="to" select="'&amp;gt;'" />
            <xsl:with-param name="value">
               <xsl:call-template name="replace-substring">
                  <xsl:with-param name="from" select="'&lt;'" />
                  <xsl:with-param name="to" select="'&amp;lt;'" />
                  <xsl:with-param name="value">
                     <xsl:call-template name="replace-substring">
                        <xsl:with-param name="from" select="'&amp;'" />
                        <xsl:with-param name="to" select="'&amp;amp;'" />
                        <xsl:with-param name="value" select="$text" />
                     </xsl:call-template>
                  </xsl:with-param>
               </xsl:call-template>
            </xsl:with-param>
         </xsl:call-template>
      </xsl:variable>
      <xsl:choose>
         <!-- $text is an attribute value -->
         <xsl:when test="$attrs">
            <xsl:call-template name="replace-substring">
               <xsl:with-param name="from" select="' '" />
               <xsl:with-param name="to" select="'&amp;#xA;'" />
               <xsl:with-param name="value">
                  <xsl:call-template name="replace-substring">
                     <xsl:with-param name="from" select="'&quot;'" />
                     <xsl:with-param name="to" select="'&amp;quot;'" />
                     <xsl:with-param name="value" select="$tmp" />
                  </xsl:call-template>
               </xsl:with-param>
            </xsl:call-template>
         </xsl:when>
         <xsl:otherwise>
            <xsl:value-of select="$tmp" />
         </xsl:otherwise>
      </xsl:choose>
   </xsl:template>

   <!-- replace in $value substring $from with $to -->
   <xsl:template name="replace-substring">
      <xsl:param name="value" />
      <xsl:param name="from" />
      <xsl:param name="to" />
      <xsl:choose>
         <xsl:when test="contains($value,$from)">
            <xsl:value-of select="substring-before($value,$from)" />
            <xsl:value-of select="$to" />
            <xsl:call-template name="replace-substring">
               <xsl:with-param name="value" select="substring-after($value,$from)" />
               <xsl:with-param name="from" select="$from" />
               <xsl:with-param name="to" select="$to" />
            </xsl:call-template>
         </xsl:when>
         <xsl:otherwise>
            <xsl:value-of select="$value" />
         </xsl:otherwise>
      </xsl:choose>
   </xsl:template>

   <!-- preformatted output: space as &nbsp;, tab as 8 &nbsp;
                             nl as <br> -->
   <xsl:template name="preformatted-output">
      <xsl:param name="text" />
      <xsl:call-template name="output-nl">
         <xsl:with-param name="text">
            <xsl:call-template name="replace-substring">
               <xsl:with-param name="value" select="translate($text,' ',' ')" />
               <xsl:with-param name="from" select="' '" />
               <xsl:with-param name="to" select="'        '" />
            </xsl:call-template>
         </xsl:with-param>
      </xsl:call-template>
   </xsl:template>

   <!-- output nl as <br> -->
   <xsl:template name="output-nl">
      <xsl:param name="text" />
      <xsl:choose>
         <xsl:when test="contains($text,' ')">
            <xsl:value-of select="substring-before($text,' ')" />
            <br />
            <xsl:text>
</xsl:text>
            <xsl:call-template name="output-nl">
               <xsl:with-param name="text" select="substring-after($text,' ')" />
            </xsl:call-template>
         </xsl:when>
         <xsl:otherwise>
            <xsl:value-of select="$text" />
         </xsl:otherwise>
      </xsl:choose>
   </xsl:template>

</xsl:stylesheet>