Hi,

I just started using XSLT today and I'm trying to figure out how to get rid of some duplicated elements. I know that I need to do something to the "XXX" template but I am not sure what to do.

I've tried this for the XXX template but it does not work:
 <xsl:template mode="XXX" match="attrib[@name='Names']/rs/row">
    <xsl:if test="not(@firstname = preceding::attrib[@name='Names']/rs/row/@firstname)">
      <xsl:copy>
        <xsl:apply-templates select="@*|node()"/>
      </xsl:copy>
    </xsl:if>
  </xsl:template>


Thanks in advance for any help.




----------------------
My XSL
----------------------

<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0" xmlns:ns="http://w.ns.c/ns/prod/">
    <xsl:template match="/">
        <ns:Products>
            <xsl:apply-templates/>
        </ns:Products>
    </xsl:template>

    <xsl:template match="product">
        <xsl:element name="ns:Product">
            <xsl:element name="ns:Names">
                <xsl:apply-templates mode="XXX" select="attrib[@name='Names']/rs/row"/>
            </xsl:element>
        </xsl:element>
    </xsl:template>

    <xsl:template mode="XXX" match="attrib[@name='Names']/rs/row">
        <xsl:element name="ns:name">
            <xsl:value-of select="@firstname"/>
        </xsl:element>
    </xsl:template>
</xsl:transform>


----------------------------------------------------
Input XML :
----------------------------------------------------

<prods>
    <product>
        <attrib name="P">product 1</attrib>
        <attrib name="Names">
            <rs>
                <row firstname="Bill"/>
                <row firstname="Bill"/>
            </rs>
        </attrib>
    </product>
    <product>
        <attrib name="P">product 2</attrib>
        <attrib name="Names">
            <rs>
                <row firstname="Sam"/>
                <row firstname="Ron"/>
                <row firstname="Sam"/>
                <row firstname="Ron"/>
            </rs>
        </attrib>
    </product>
    <product>
        <attrib name="P">product 3</attrib>
        <attrib name="Names">
            <rs>
                <row firstname="Ron"/>
                <row firstname="Sam"/>
                <row firstname="Joe"/>
                <row firstname="Sam"/>

            </rs>
        </attrib>
    </product>
</prods>

----------------------------------------------------
This is the OUTPUT that I want (note no name dups):
----------------------------------------------------

<ns:Products xmlns:ns="http://w.ns.c/ns/prod/">
    <ns:Product>
        <ns:Names>
            <ns:name>Bill</ns:name>
        </ns:Names>
    </ns:Product>
    <ns:Product>
        <ns:Names>
            <ns:name>Sam</ns:name>
            <ns:name>Ron</ns:name>
        </ns:Names>
    </ns:Product>
    <ns:Product>
        <ns:Names>
            <ns:name>Ron</ns:name>
            <ns:name>Joe</ns:name>
            <ns:name>Sam</ns:name>
        </ns:Names>
    </ns:Product>
</ns:Products>


----------------------------------------------------
But this is the OUTPUT that I get (note the name dupes):
----------------------------------------------------
<ns:Products xmlns:ns="http://w.ns.c/ns/prod/">
    <ns:Product>
        <ns:Names>
            <ns:name>Bill</ns:name>
            <ns:name>Bill</ns:name>
        </ns:Names>
    </ns:Product>
    <ns:Product>
        <ns:Names>
            <ns:name>Sam</ns:name>
            <ns:name>Ron</ns:name>
            <ns:name>Sam</ns:name>
            <ns:name>Ron</ns:name>
        </ns:Names>
    </ns:Product>
    <ns:Product>
        <ns:Names>
            <ns:name>Ron</ns:name>
            <ns:name>Sam</ns:name>
            <ns:name>Joe</ns:name>
            <ns:name>Sam</ns:name>
        </ns:Names>
    </ns:Product>
</ns:Products>

Hi Tyler,
Please use this .
   <xsl:template mode="XXX" match="attrib[@name='Names']/rs/row">
        <xsl:element name="ns:name">
            <xsl:if test="current()[not(@firstname = preceding-sibling::row/@firstname)]">
            <xsl:value-of select="@firstname"/>
            </xsl:if>
        </xsl:element>
    </xsl:template>
Hope it solves u r problem.


Thanks &amp; Regards
Naveen.

You can simplify this:

<xsl:if test="current()[not(@firstname = preceding-sibling::row/@firstname)]">

as this:

<xsl:if test="not(@firstname = preceding-sibling::row/@firstname)">


Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference