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RE: [xsl] key() and ordering of resulting node-set

2006-11-15 12:33:19
In XSLT 1.0, key() returns a node-set - a set of nodes with no intrinsic
order.

Operations like xsl:for-each and xsl:apply-templates, in the absence of
xsl:sort, will always process the nodes of a node-set in document order. (If
they don't it's a bug.)

Michael Kay
http://www.saxonica.com/ 

-----Original Message-----
From: Ronan Klyne [mailto:ronan(_dot_)klyne(_at_)groupbc(_dot_)com] 
Sent: 15 November 2006 18:51
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] key() and ordering of resulting node-set

Ah! I was reading the 1.0 spec, and couldn't find an explicit 
statement of ordering.
FYI, XT seems to return nodes in reverse document order...

      # r

James A. Robinson wrote:
Is it possible to guarantee the ordering of the node-set 
returned by key()?
If not, is it possible to force the order to document order?
I have looked to the spec, but to no avail...

According to the 2.0 CR it is document order:

  The result of the function is a sequence of nodes, 
  in document order and with duplicates removed

from http://www.w3.org/TR/xslt20/#keys

Jim

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
- - - - -
James A. Robinson                       
jim(_dot_)robinson(_at_)stanford(_dot_)edu
Stanford University HighWire Press      
http://highwire.stanford.edu/
+1 650 7237294 (Work)                   +1 650 7259335 (Fax)


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--
Ronan Klyne
Business Collaborator Developer
Tel: +44 (0)870 163 2555
ronan(_dot_)klyne(_at_)groupbc(_dot_)com
www.groupbc.com

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