> A/Value[for $a in . return /Parts/B/Value[contains(.,$a)]]
What does $a contain ? Is it the all the A/Value which appear as the
child of A or something else?
No it just contains the single node . which is the current Value node
for $a in . return something
is the XPath spelling of the Xquery expression
let $a := . return something
or the XSLT code
<xsl:variable name="a" select="."/>
<xsl:sequence select="something"/>
David
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