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Re: How to do for-each on nodeset returned by key() function
- From: David Carlisle <davidc at nag dot co dot uk>
- To: xsl-list at lists dot mulberrytech dot com
- Date: Mon, 23 Sep 2002 22:01:08 +0100
- Subject: Re: [xsl] How to do for-each on nodeset returned by key() function
- References: <9B9B62723567884FBD145EA8CC660AAC2A2562@atgs-e2k2.atoga.com>
- Reply-to: xsl-list at lists dot mulberrytech dot com
> <xsl:key name = "nodeInfoMap" match= "//nodeInfo" use = "name"/>
That's OK, although as always in match patterns, starting with // isn't
doing anything useful.
> Now when I do key('nodeInfoMap', @name) at some context, more than one nodes
> are returned. i.e.
>
> count(key('nodeInfoMap', @name) ) > 1
if <xsl:value-of select="count(key('nodeInfoMap', @name) )"/> returns a
number greater than 1 then
<xsl:for-each select="count(key('nodeInfoMap', @name) ">
_at the same point in the stylesheet_ will work over a node set of more
than one node.
> <xsl:for-each select='key('nodeInfoMap', @name)'> -- DID NOT WORK
Either you evaluated this at some place where @name does not result in a
valid key or id did work but teh body of teh for-each dis not evaluate
as you expected. Since you gave no context it's hard to guess which.
> <xsl:for-each select='key('nodeInfoMap', @name)//nodeInfo'> -- DID NOT
> WORK
That one will iterate over all the nodeInfo descendents of the nodeInfo
nodes that are returned by the key. Yor nodeinfo nodes do not have any
nested nodeinfo elements, so thi sis empty.
So the first one should work if you are in a context where the name
attribute gives the key value, but your sample doc didn't seem to have
any such attribute.
David
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