Re: [xsl] keys and collections

[Michael Kay <mike@xxxxxxxxxxxx>]

A key can only be used to search within a single document. You can, of 
course, construct the union of the results of searching each individual 
document using the key, like this:

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

I'm not sure what you were trying to do with the /text/* so I've left that out of the equation.

Michael Kay
Saxonica



On 21/06/2012 16:37, Birnbaum, David J wrote:
> 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