This is the mail archive of the xsl-list@mulberrytech.com mailing list .


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

RE: defaulting empty node to zero


> 
> Summing is a bit harder; you may not be able to use a trick 
> like this at 
> all (until XPath 2).

If the magic value for empty nodes is zero, it's easy - just exclude
them from the set of nodes being summed using a filter:
sum(taxAmount[child::node()]).

Michael Kay
Software AG
home: Michael.H.Kay@ntlworld.com
work: Michael.Kay@softwareag.com 
> 
> Cheers,
> Wendell
> 
> At 04:03 PM 5/24/2002, you wrote:
> >I want to find the numeric value of a node. If the node is 
> empty (e.g.:
> ><taxAmount/>) I want zero. I also want zero when applying 
> sum() to the 
> >same or a set of similar nodes.
> >Is there a solution to this problem other than setting a 
> variable, check 
> >the variable = NaN, return the variable or zero?
> 
> 
> ======================================================================
> Wendell Piez                            mailto:wapiez@mulberrytech.com
> Mulberry Technologies, Inc.                http://www.mulberrytech.com
> 17 West Jefferson Street                    Direct Phone: 301/315-9635
> Suite 207                                          Phone: 301/315-9631
> Rockville, MD  20850                                 Fax: 301/315-8285
> ----------------------------------------------------------------------
>    Mulberry Technologies: A Consultancy Specializing in SGML and XML
> ======================================================================
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]