Hi David,
Thanks for your insightful comments.. You have
provided the most accurate definition of the scope of
xsl:key (i.e. the document node over which it
operates)..
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..
But I was wrong that <temp> was neccessary to enforce
scope to RTF(as you have clarified).. But using
<temp>(or any other name which does'nt exist in source
XML) would accurately enforce the scope of xsl:key to
RTF.. Am I right..?
Regards,
Mukul
--- David Carlisle <davidc(_at_)nag(_dot_)co(_dot_)uk> wrote:
It is this use
of a temporary tag(temp), which makes the scope of
xsl:key the RTF..
No. The extra element isn't needed, you could just
as well go
<xsl:key name="countDetail" match="projectsum"
use="@id"/>
<xsl:variable name="projectSum">
<xsl:for-each select="//project">
<!-- other code -->
</xsl:for-each>
</xsl:variable>
The scope of a key is always the document containg
the current node at
the point use use key(). xx:node-set makes a new
document node when it
generates a node set from a result tree fragment, so
the key is always
scoped to this generated document.
xsl:key by specification indexes all documents used
in a stylesheet,
but in practice a system will only build an index
for documents for
which key() is actually used.
David
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