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Manu GuptaSubject: Remove duplicates
Author: Manu Gupta
Date: 15 Jul 2011 06:45 AM
Hi All,
I have string variable "AABBCDNNN" and I need to create string which contains only distinct values "ABCDN". I am using XSLT 1.0.

Help will be really appreciated.

Thanks
Posttop
Ivan PedruzziSubject: Remove duplicates
Author: Ivan Pedruzzi
Date: 20 Jul 2011 11:21 PM

XSLT 1.0 has weak support for string manipualtion compare to version 2.0. See if the following helps


input xml

<?xml version="1.0"?>
<root>AABBCDNNN</root>


XSLT

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template name="unique">
<xsl:param name="p" select="1"/>
<xsl:param name="s"/>
<xsl:if test="$p &lt;= string-length($s)">
<xsl:if test="substring($s, $p, 1) != substring($s, $p -1, 1)">
<xsl:value-of select="substring($s, $p, 1)"/>
</xsl:if>
<xsl:call-template name="unique">
<xsl:with-param name="p" select="$p + 1"/>
<xsl:with-param name="s" select="$s"/>
</xsl:call-template>
</xsl:if>
</xsl:template>
<xsl:template match="/">
<xsl:call-template name="unique">
<xsl:with-param name="s" select="."/>
</xsl:call-template>
</xsl:template>
</xsl:stylesheet>

   
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