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Re: maths in xml

  • From: Mike Moran <mmoran@n...>
  • To: Gordon Stewart <gordon.stewart@n...>
  • Date: Wed, 19 Sep 2001 17:48:54 +0100

xml maths
Gordon Stewart wrote:

> Dear List
> I have a XML file that has the following structure
> <product>
>   <unitprice>2.00</unitprice>
>   <sold>5</sold>
> </product>
> <product>
>   <unitprice>3.00</unitprice>
>   <sold>2</sold>
> </product>
> How do I get XML to display the data so that the xsl file has calculation in
> it so that the data shows as
> 10.00
> 6.00
> and then I would like to add them up so I get 16.00.
> I do not want to hard code the value into my XML document.

Assuming a <products> wrapper around the main elements, the following 
seems to work:

<?xml version='1.0'?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  <xsl:output method="text" omit-xml-declaration="yes" indent="no"/>

  <xsl:template match="products">
   <xsl:variable name="individual">
    <xsl:apply-templates />
   <xsl:value-of select="format-number(sum($individual/internal:mult),

  <xsl:template match="product">
    <xsl:value-of select="number(unitprice * sold)"/>


You could probably do it without using an internal tree (which I think 
may not be standard).

Btw, you should direct questions about xsl to the XSL-List: 


  • References:


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