xslt 1.0 - How to pass dynamic separator in key XSLT1.0 -

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how pass dynamic separator in , here passed '|' static , when declare variable in xsl , used place gives error.

<xsl:variable name="separator" select="'|'"/> <xsl:key name="key-before" match="result" use="substring-before(store, $separator)"/>

input xml

<?xml version="1.0" encoding="iso-8859-1"?> <results>     <result>         <store>0180|1</store>     </result>     <result>         <store>0180|2</store>     </result>     <result>         <store>0181</store>     </result>     <result>         <store>0183</store>     </result>     <result>         <store>abc</store>     </result>     <result>         <store>def</store>     </result>     <result>         <store>0181|2</store>     </result>     <result>         <store>0180|3</store>     </result>     <result>         <store>0181|1</store>     </result>   </results>

xslt: 

<?xml version="1.0" encoding="utf-8"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/xsl/transform"     xmlns:msxsl="urn:schemas-microsoft-com:xslt" exclude-result-prefixes="msxsl"> <xsl:output method="xml" indent="yes"/> <xsl:param  name="key-direction" select="'p'"/> <xsl:param  name="separator" select="results/sep"/> <xsl:variable name="demo" select="substring-before(store,$separator)"/> <xsl:key name="group-before" match="/results/result" use="substring-before(store,$demo)" /> <xsl:key name="group-after" match="/results/result" use="substring-before(store,$demo)" />  <xsl:template match="/results">         <xsl:choose>           <xsl:when test="$key-direction='p'">             <xsl:apply-templates select="result[generate-id() = generate-id(key('group-before', substring-before(store,$separator))[1])]"/>           </xsl:when>           <xsl:otherwise>             <xsl:apply-templates select="result[generate-id() = generate-id(key('group-after', substring-before(store,$separator))[1])]"/>           </xsl:otherwise>         </xsl:choose>   </xsl:template>   <xsl:template match="result">      <xsl:choose>           <xsl:when test="$key-direction='p'">                     <xsl:for-each select="key('group-before', substring-before(store,$separator))">                           <xsl:choose>                           <xsl:when test="contains(store,'|')">                                 <td>                                 <xsl:value-of select="substring-before(store,$separator)"/>                                  <xsl:value-of select="'|'"/>                                  <xsl:value-of select="position()"/>                             </td>                           </xsl:when>                           <xsl:otherwise>                            <td><xsl:value-of select="store"/></td>                           </xsl:otherwise>                         </xsl:choose>                    </xsl:for-each>            </xsl:when>           <xsl:otherwise>             <xsl:for-each select="key('group-after', substring-after(store,$separator))">                   <xsl:choose>                   <xsl:when test="contains(store,'|')">                         <td>                          <xsl:value-of select="substring-after(store,$separator)"/>                         <xsl:value-of select="'|'"/>                          <xsl:value-of select="position()"/>                     </td>                   </xsl:when>                   <xsl:otherwise>                 <td><xsl:value-of select="store"/></td>                   </xsl:otherwise>                 </xsl:choose>            </xsl:for-each>            </xsl:otherwise>         </xsl:choose>    </xsl:template> </xsl:stylesheet>

what ask not possible (in xslt 1.0). neither match nor use attribute of xsl:key can contain reference variable.


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