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Re: Need to use document() in key definition

Subject: Re: Need to use document() in key definition
From: "Tony Graham" <tgraham@xxxxxxxxxx>
Date: Wed, 4 Dec 2013 17:51:07 -0000 (GMT)
Re:  Need to use document() in key definition
On Wed, December 4, 2013 5:33 pm, dvint@xxxxxxxxx wrote:
> I'm trying to build a look up table by using keys but I have 2 documents
> that I'm working with. The primary document that the stylesheet is
> processing has the values that I want to verify are in the second
> document. This second document is passed in as a parameter to the
> stylesheet. So I was trying to do this:
> I also tried processing this second document with a template of its own,
> so I could use the <xsl:key> element without passing the document
> information in. That fails because <xsl:key> is a top level element and
> can't be used in a template.
> I can't change the selection of which document to process, is there an
> option here that I missed?

Keys 'just work' for every document.

To lookup something in the secondary document, use the document-node of
the secondary document as the third, 'selected subtree', argument to
'key()' [1]:

  key($key-name     as xs:string,
      $key-value    as xs:anyAtomicType*,
      $top          as node()) as node()*

Tony Graham                                   tgraham@xxxxxxxxxx
Consultant                                 http://www.mentea.net
Mentea       13 Kelly's Bay Beach, Skerries, Co. Dublin, Ireland
 --  --  --  --  --  --  --  --  --  --  --  --  --  --  --  --
    XML, XSL-FO and XSLT consulting, training and programming
       Chair, Print and Page Layout Community Group @ W3C

[1] http://www.w3.org/TR/xslt20/#keys

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