This is the mail archive of the
xsl-list@mulberrytech.com
mailing list .
RE: XPath for number of preceding nodes sharing an ancestor
- To: <xsl-list at lists dot mulberrytech dot com>
- Subject: RE: [xsl] XPath for number of preceding nodes sharing an ancestor
- From: "Michael Kay" <mhkay at iclway dot co dot uk>
- Date: Wed, 16 May 2001 04:15:16 +0100
- Reply-To: xsl-list at lists dot mulberrytech dot com
> > You really need a set intersection here; if you don't want to use an
> > extension function there's the $x[count(.|$y)=count($y)] trick.
>
> Will you please elaborate? I don't understand the 'trick'.
> What are the
> values of $x and $y?
If $x and $y are node-sets, then $x[count(.|$y)=count($y)] contains those
nodes that are in both $x and $y.
> Also, could I use:
>
> count(preceding::input[generate-id(ancestor::inputform) =
> generate-id(current()/ancestor::inputform)])
No, because generate-id() applied to a node-set returns the id of the first
node in the node-set, considered in document order.
Mike Kay
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list