On 5 Oct 2004 00:56:12 -0700, Martin Pettersson  
<martinpettersson1974@h...> wrote:

> I'm trying to multiply parent values in xsl. The thing is that I start
> with a value down in the xml-structure. From that value (in my case
> 'qty' value) I check the parent value and later on I will try to
> multiply these values. When I have found the parent I will multiply
> with its parent and so on, all the way to the top of the xml-file.
> Has anyone worked with a similar case? How can I find the 'qty' value
> for hte parents? Maybe there could be a better way to work with these
> kind of calculations in xsl (variables or functions ...).

Hi,

The following method uses variables and tree-node variables.

To multiple all ancestor's 'qty' attributes, use:

   <xsl:call-template name="multiply">
   <xsl:with-param name="values" select="ancestor::part/*/*[@name='qty']"/>
   </xsl:call-template>

This template multiplies all values found in the 'values' parameter.
It must be included in the XSL.

   <xsl:template name="multiply">
  <xsl:param name="values"/>
   <xsl:param name="product" select="1"/>
   <xsl:if test="count($values) &gt; 0">
   <xsl:call-template name="multiply">
   <xsl:with-param name="product" select="$product * $values[1]"/>
   <xsl:with-param name="values" select="$values[position() &gt; 1]"/>
   </xsl:call-template>
   </xsl:if>
   <xsl:if test="count($values)=0">
   <xsl:value-of select="$product"/>
   </xsl:if>
   </xsl:template>

Is this useful?

Also a little question about your document structure:
Why not use real attributes in stead of nodes named 'attribute'?
I mean something like : <attributes @qty="4"/>


Joris Gillis


--
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