<xsl:variable name="merger">
<xsl:value-of select="$X1"/>
<xsl:value-of select="$X2"/>
</xsl:variable>
<xsl:for-each select="$merger/item">
This is a syntax error, you can not query into a result tree fragment
variable in XSLT 1.
This should be
<xsl:for-each select="xx:node-set($merger)/item">
where xx:node-set is your systems node-set extension. If your system is
not reporting an error here it has a bug.
However even if you use node-set then
<xsl:variable name="merger">
<xsl:value-of select="$X1"/>
<xsl:value-of select="$X2"/>
</xsl:variable>
value-of gives the string value of its argument so $merger
will be a result tree fragment corresponding to a root node with just
text child, no elements, and in particular no elements called item, so
I do not know what you intend by
<xsl:for-each select="$merger/item">
perhaps you want copy-of not value-of when you build merger, but it's
hard to guess.
David
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