<xsl:template name="trdif">
 <xsl:param name="a" select="''"/>
 <xsl:param name="b" select="''"/>
 <xsl:choose>
   <xsl:when test="string-length($a) = 0 or
                   substring($a,1,1) != substring($b,1,1)">
     <xsl:value-of select="$b"/>
   </xsl:when>
   <xsl:otherwise>
     <xsl:call-template name="trdif">
       <xsl:with-param name="a" select="substring($a,2)"/>
       <xsl:with-param name="b" select="substring($b,2)"/>
     </xsl:call-template>
   </xsl:otherwise>
  </xsl:choose>
</xsl:template>

Cheers,
Wendell

Functions is only 2.0, sorry.

On 24 September 2010 12:09,  <pankaj.c@xxxxxxxxxxxxxxxxxx> wrote:
> <xsl:function name="wl:trdif">
>  <xsl:param name="a" as="xsd:string"/>
>  <xsl:param name="b" as="xsd:string"/>
>  <xsl:choose>
>    <xsl:when test="string-length($a) = 0 or
>                    substring($a,1,1) != substring($b,1,1)">
>      <xsl:value-of select="$b"/>
>    </xsl:when>
>    <xsl:otherwise>
>      <xsl:value-of select="wl:trdif(substring($a,2),substring($b,2))"/>
>    </xsl:otherwise>
>  </xsl:choose>
> </xsl:function>
>
> Thanks Laun for suggestion, I will look into that.

======================================================================
Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
Mulberry Technologies, Inc.                http://www.mulberrytech.com
17 West Jefferson Street                    Direct Phone: 301/315-9635
Suite 207                                          Phone: 301/315-9631
Rockville, MD  20850                                 Fax: 301/315-8285
----------------------------------------------------------------------
  Mulberry Technologies: A Consultancy Specializing in SGML and XML
======================================================================