Subject: RE: [xsl] defaulting empty node to zero From: "Michael Kay" <michael.h.kay@xxxxxxxxxxxx> Date: Thu, 30 May 2002 15:03:23 +0100 |
> > 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@xxxxxxxxxxxx work: Michael.Kay@xxxxxxxxxxxxxx > > 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@xxxxxxxxxxxxxxxx > 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
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