In XSLT, many to many attributes comparing in for-each condition - xslt

Question

Using XSLT 1.0
Is it possible to filter many to many attributes, i mean as below example:
"../../../../fieldmap/field[#name" i.e. more then 1 elements as fieldmap containing "field/#name" attribute are exists and it is comparing with definition/#title and there too more then one definition element exists containing #title.
EXAMPLE:
<xsl:for-each select="../../../../fieldmaps/field[#name=../destination/#title]">
Can you please suggest me how it could possible to achieve -- if field containing #name existed in any of defination/#title then only those records should be process within for-each loop?
(as now, it looks, it will just compare with first #title attribute and consider all fieldmaps/field/#name attributes)
Thanks

Answer 1

You can achieve that using a variable:
<xsl:variable name="titles" select="../destination/#title"/>
<!--now "titles" contains a nodeset with all the titles -->
<xsl:for-each select="../../../../fieldmaps/field[#name=$titles]">
<!-- you process each field with a name contained inside the titles nodeset -->
</xsl:for-each>
Here you have a simplified example:
INPUT:
<parent>
<fieldmaps>
<field name="One"/>
<field name="Two"/>
<field name="Three"/>
</fieldmaps>
<destinations>
<destination title="One"/>
<destination title="Two"/>
</destinations>
</parent>
TEMPLATE:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<!-- ++++++++++++++++++++++++++++++++ -->
<xsl:template match="parent">
<Results>
<xsl:variable name="titles" select="destinations/destination/#title"/>
<xsl:for-each select="fieldmaps/field[#name=$titles]">
<Result title="{#name}"/>
</xsl:for-each>
</Results>
</xsl:template>
<!-- ++++++++++++++++++++++++++++++++ -->
</xsl:stylesheet>
OUTPUT:
<Results>
<Result title="One"/>
<Result title="Two"/>
</Results>
I hope this helps!