RE: [xsl] keys and idrefs - XSLT2 request?

Subject: RE: [xsl] keys and idrefs - XSLT2 request?
From: DPawson@xxxxxxxxxxx
Date: Wed, 10 Oct 2001 08:50:18 +0100
Thanks Jeni.
Mike confirmed that the intention of the function was
to meet my need, just that the words need working on a little more!



> Another thing I just thought of was perhaps you could use the id()
> function when setting the key value. The id() function can take a
> space-separated list of IDs and gets you all the elements with those
> IDs. Then you can go from those elements to the IDs themselves, to
> index the element holding the IDREFS attribute by the values of the
> IDs:
> 
> <xsl:key name="control"
>          match="process"
>          use="id(@control)/@id"/>

I half picked that up from the XSLT 1.0 spec, 
12.2

<quote>For example, given a declaration

<xsl:key name="idkey" match="div" use="@id"/>
an expression key("idkey",@ref) will return the same node-set as
id(@ref)</quote>



id(@control) will return the nodeset of all nodes 'pointed at' by
the IDREFS, one of which will be 'this one'.

Using my simpler example

 <a id="a" idrefs=" x y z"/>
 <b id="b" idrefs=" m n z"/>

 <z id="z"/>

So on template match="z"
   <xsl:for-each select="key('controls', @id)">

so the key function will return both a and b nodes.

Is that it?

<grin> Hey teach (Wendell), is the lady right again?
    or is she right again!

Thanks Jeni, you're a genius.

Regards DaveP


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