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[xsl] keys and collections


Subject: [xsl] keys and collections
From: "Birnbaum, David J" <djbpitt@xxxxxxxx>
Date: Thu, 21 Jun 2012 11:37:39 -0400

Dear XSLT List,

Is it possible to use a key with a collection, along the lines of:

<xsl:variable name="allInput"
select="collection('file:///path/?select=*.xml')/text/*"/>
<xsl:key name="linebyfolio" match="line" use="@folio"/>

And then, later:

key('linebyfolio',$folio,$allInput)

Using <oXygen/> 13.2 (configured to use Saxon-PE 9.3.0.5), this generates an
error to the effect that: "A sequence of more than one item is not allowed as
the third argument of key() (<title/>, <line/>, ...)." The children of the
<text> elements in the collection are, indeed, <title> and <line> elements.
Removing the "/text/*" from the path doesn't help; the error is then: "A
sequence of more than one item is not allowed as the third argument of key()
(document-node(), document-node(), ...)." I think I understand why this might
be an error, but I seem to have a blind spot in figuring out how to work
around it.

Thanks,

David
djbpitt@xxxxxxxxx


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