[xsl] comparing xml documents

[Koteswararao Mogili <raomvk@xxxxxxxxxxxxxxxxxxxxxx>]

Hi,

I am trying to compare two XML documents and create a new document 
which is the merge of the both documents. The following code is 
comparing properly but when i try to use copy or copy-of command in the 
template , i am getting wrong output, Any suggestion is greatly 
appreciated..

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
    <xsl:output encoding="UTF-8" indent="yes" method="xml" 
version="1.0"/>

    <xsl:template match="/">

        <xsl:variable name="doc2node" 
select="document('/XML/offer_1_2.xml')"/>

        <xsl:attribute name="action">N</xsl:attribute>
        <xsl:for-each select="descendant-or-self::*">
            <xsl:copy-of select="."/>
            <xsl:variable name="index" select="position()"/>
            <xsl:apply-templates  select=".">
                <xsl:with-param name="doc2node" 
select="$doc2node/descendant-or-self::*[position() = $index]"/>
            </xsl:apply-templates>
        </xsl:for-each>
    </xsl:template>

    <xsl:template match="*">
        <xsl:param name="doc2node"/>

        <xsl:variable name="elementName" select="name()"/>
        <xsl:message>doc1node---><xsl:value-of 
select="$elementName"/></xsl:message>
        <xsl:message>doc2node---><xsl:value-of 
select="name($doc2node)"/></xsl:message>
        <xsl:apply-templates mode="C" select="$doc2node"/>
        <xsl:for-each select="@*">
            <xsl:variable name="attributeName" select="name()"/>
            <xsl:apply-templates select=".">
                <xsl:with-param name="doc2node" 
select="$doc2node/@*[name()=$attributeName]"/>
            </xsl:apply-templates>
        </xsl:for-each>
    </xsl:template>

    <xsl:template match="@*">
        <xsl:param name="doc2node" />

        <xsl:choose>
            <xsl:when test="not(.=$doc2node)">
                            <xsl:message>-----><xsl:value-of 
select="$doc2node"/></xsl:message>
                            <xsl:attribute 
name="action">N</xsl:attribute>
            </xsl:when>
            <xsl:otherwise>
            </xsl:otherwise>
        </xsl:choose>
    </xsl:template>
</xsl:stylesheet>



Thanks

Rao


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