Abt Libxslt use in replace function

i have used str:replace in my xsl file
this my XSL file

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="
http://www.w3.org/1999/XSL/Transform" xmlns:idmef="http://iana.org/idmef"
xmlns:str="http://exslt.org/strings"
                extension-element-prefixes="str">
<xsl:import href="replace.xsl" />
<xsl:variable name="color"
select="idmef:IDMEF-Message/idmef:Alert/idmef:Analyzer/idmef:Node/idmef:name"/>
<xsl:variable name="color1" select="'a'" />
<xsl:variable name="color2" select="'e'" />
<xsl:template match="/" >
<xsl:call-template name="str:replace">
   <xsl:with-param name="string" select="color"/>
   <xsl:with-param name="search" select="$color1" />
   <xsl:with-param name="replace" select="$color2"/>
</xsl:call-template>
<xsl:value-of select="color" />
</xsl:template>
</xsl:stylesheet>


This is my replace.xsl
this file i hv taken from EXSLT


<?xml version="1.0"?>
<xsl:stylesheet version="1.0"
                xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                xmlns:str="http://exslt.org/strings"
                xmlns:exsl="http://exslt.org/common"
                extension-element-prefixes="str exsl">


<xsl:template name="str:replace">
        <xsl:param name="string" select="''" />
   <xsl:param name="search" select="/.." />
   <xsl:param name="replace" select="/.." />
   <xsl:choose>
      <xsl:when test="not($string)" />
      <xsl:when test="not($search)">
        <xsl:value-of select="$string" />


      </xsl:when>
      <xsl:when test="function-available('exsl:node-set')">
         <!-- this converts the search and replace arguments to node sets
              if they are one of the other XPath types -->
         <xsl:variable name="search-nodes-rtf">
           <xsl:copy-of select="$search" />
         </xsl:variable>
  <xsl:variable name="replace-nodes-rtf">
           <xsl:copy-of select="$replace" />
         </xsl:variable>


         <xsl:variable name="replacements-rtf">
            <xsl:for-each select="exsl:node-set($search-nodes-rtf)/node()">
               <xsl:variable name="pos" select="position()" />
               <replace search="{.}">
                  <xsl:copy-of
select="exsl:node-set($replace-nodes-rtf)/node()[$pos]" />
               </replace>
            </xsl:for-each>
         </xsl:variable>
         <xsl:variable name="sorted-replacements-rtf">


            <xsl:for-each select="exsl:node-set($replacements-rtf)/replace">
               <xsl:sort select="string-length(@search)" data-type="number"
order="descending" />               <xsl:copy-of select="." />
            </xsl:for-each>
         </xsl:variable>
         <xsl:call-template name="str:_replace">
            <xsl:with-param name="string" select="$string" />
            <xsl:with-param name="replacements"
select="exsl:node-set($sorted-replacements-rtf)/replace" />
 </xsl:call-template>


      </xsl:when>
      <xsl:otherwise>
         <xsl:message terminate="yes">
            ERROR: template implementation of str:replace relies on
exsl:node-set().
         </xsl:message>
      </xsl:otherwise>
   </xsl:choose>
</xsl:template>


<xsl:template name="str:_replace">
  <xsl:param name="string" select="''" />


  <xsl:param name="replacements" select="/.." />
  <xsl:choose>
    <xsl:when test="not($string)" />
    <xsl:when test="not($replacements)">
      <xsl:value-of select="$string" />
    </xsl:when>
    <xsl:otherwise>
      <xsl:variable name="replacement" select="$replacements[1]" />
      <xsl:variable name="search" select="$replacement/@search" />


      <xsl:choose>
  <xsl:when test="not(string($search))">
          <xsl:value-of select="substring($string, 1, 1)" />
          <xsl:copy-of select="$replacement/node()" />
          <xsl:call-template name="str:_replace">
            <xsl:with-param name="string" select="substring($string, 2)" />
            <xsl:with-param name="replacements" select="$replacements" />
          </xsl:call-template>
        </xsl:when>


        <xsl:when test="contains($string, $search)">
          <xsl:call-template name="str:_replace">
            <xsl:with-param name="string" select="substring-before($string,
$search)" />
            <xsl:with-param name="replacements"
select="$replacements[position() > 1]" />
          </xsl:call-template>
          <xsl:copy-of select="$replacement/node()" />
          <xsl:call-template name="str:_replace">
            <xsl:with-param name="string" select="substring-after($string,
$search)" />
            <xsl:with-param name="replacements" select="$replacements" />


          </xsl:call-template>
        </xsl:when>
        <xsl:otherwise>
 <xsl:call-template name="str:_replace">
            <xsl:with-param name="string" select="$string" />
            <xsl:with-param name="replacements"
select="$replacements[position() > 1]" />
          </xsl:call-template>
        </xsl:otherwise>
      </xsl:choose>


    </xsl:otherwise>
  </xsl:choose>
</xsl:template>


</xsl:stylesheet>



This my XML File


<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="cd-price.xsl"?>
<idmef:IDMEF-Message  version="1.0" xmlns:idmef="http://iana.org/idmef">
<idmef:Alert messageid="abc123456789">
<idmef:Analyzer analyzerid="bcfs">
<idmef:Node category="dns">
<idmef:name>bhushan</idmef:name>
</idmef:Node>
</idmef:Analyzer>
</idmef:Alert>
</idmef:IDMEF-Message>


when i run conversion code i am not getting converted
string it shows on following

<?xml version="1.0"?>

Plz tell wat mistake that i have made in above XSL file ..

- bhushan. E . Sonawane

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