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[xsl] Filtering sequences of atomic types
Subject: [xsl] Filtering sequences of atomic types From: Christoph LANGE <ch.lange@xxxxxxxxxxxxxxxxxxxx> Date: Wed, 26 Nov 2008 21:33:48 +0100 |
Dear all, I'm trying to filter a sequence using a predicate that involves a node set. What I actually want to do is something like $string-sequence[. = //@xml:id] i.e. get all items of a sequence that occur as an xml:id attribute somewhere in the document. As that gives me the error message "XPTY0020: Cannot select a node here: the context item is an atomic value" (with Saxon 9.1), I tried $string-sequence[. = (for $n in (//@xml:id) return xs:string($n))] or even ('foo', 'bar')[. = (for $n in (//@name) return 'foo')] where the latter should actually return something like ('foo', 'foo', ...), and ('foo', 'bar')[. = ('foo', 'foo')] works, of course. My current workaround is translating the string sequence to a sequence of text nodes, but why doesn't it work with a sequence of atomic types? Thanks for any help, Christoph -- Christoph Lange, Jacobs Univ. Bremen, http://kwarc.info/clange, Skype duke4701
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