Hi James,
When finding the first of a group of keys: key(?ve-by-firstocc?,
substring(entrydata[3]/text, 1, 1))[1] would this find the first
node in document order or the order which its puts the list in (e.g.
if its alphabetical).
In XPath/XSLT 1.0, nodes are collected together in *sets*, which don't
have any inherent order. When you use a positional predicate on a
node-set (as opposed to using a positional predicate within a step),
then the nodes are always counted in document order. So:
$node-set[1]
always gives you the first node in $node-set in document order, no
matter how the $node-set was generated.
So to answer your question, you will get the first node in document
order.
In XPath/XSLT 2.0, expressions return sequences, which *do* have an
inherent order. Some expressions may return a sequence of nodes in an
order other than document order. However, backwards compatibility has
been retained: calls to XPath/XSLT 1.0 functions such as key() always
return a sequence of nodes in document order.
Cheers,
Jeni
---
Jeni Tennison
http://www.jenitennison.com/
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list