Thank you David for the most precise explanation.. I
have another related doubt..

Supposing, I want to apply key() function within the
below for-each loop, on the document constructed from
the source XML(and not the RTF)
<xsl:for-each
select="exsl:node-set($rtf)/someelement">
  <!-- using key() here to operate on the document
representing the source XML; not the RTF -->
</xsl:for-each>

Can this be done..?

I feel, this could be a requirement in applications..

Regards,
Mukul

--- David Carlisle <davidc@xxxxxxxxx> wrote:

>   But please consider this.., if for instance, the
> main
>   XML document also contained the <projectsum>
> nodes,
>   then the key definition -
>   <xsl:key name="countDetail" match="projectsum"
>   use="@id"/>
>   would include those nodes also in the scope.. So
>   introducing the <temp> tag would be neccessary to
>   enforce the scope to RTF..
> 
> No, XSLT indexes each document _separately_ key()
> only ever returns
> nodes from one document (the document which the
> current node is in).
> So if the current node is in a document which
> resulted from calling
> xx:node-set on an rtf, any use of key will only
> return nodes from that
> same document, there is no other scoping required
> (or possible).
> 
> In this case even if other documents (such as the
> main input document)
> contain projectsum elements they will not be
> returned by key() because
> no nodes from other documents are ever returned.
> 
> David
> 
>
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