Re: [xsl] Finding the position of an ancestor

[Kamal Bhatt <kbhatt@xxxxxxxxx>]

One brute force method would be to have a template that matches step and 
then in this template call another template that matches for chunk and 
pass down the value of the position of step to this template.

eg

<xsl:template match="Step">
   <xsl:apply-templates select="descendant::Chunk[@type='FieldRef']">
        <xsl:with-param name="pos" select="position()"/>
    </xsl:apply-templates>

</xsl:template>

<xsl:emplate match="Chunk">
   <xsl:param name="pos"/>
   <!-- Field processing goes here -->
</xsl:template>

Apologies if syntax is incorrect it has been a while since I have done 
XSLT and I have never used descendant, but hopefully you get at what I 
am saying. I have done something similar in the past and this was the 
only way I could do it. If anyone knows of a better way, I would be 
grateful to find out.

Maybe you can find a way of making this more elegant by going back to 
the step rather than forward to the chunk and getting the position that 
way (ie, create a template that gets and prints the position of a step)

Nicholas Orr wrote:

> I was wondering if someone can help me work out a position issue I'm  
> struggling with.
>
> I've got some XML that has is in it :
>
> <FMPReport>
>     <File>
>         <ScriptCatalog>
>             <Script>
>                 <StepList>
>                     <Step>
>                        ...
>                     </Step>
>                     <Step>
>                        ...
>                     </Step>
>                     <Step>
>                        ...
>                     </Step>
>                     <Step id="1" name="Perform Script" enable="True">
>                        <Value>
>                             <DisplayCalculation>
>                                <Chunk type="FieldRef">
>                                     <Field id="32867" name="cPref  
> Server Temp Folder" table="gPrefs" />
>
> Then in the xslt I run a for each loop
>
>                 <xsl:for-each select="/FMPReport/File/ 
> descendant::Chunk[@type='FieldRef']/Field">
>                     <xsl:call-template name="RESULTSET" />
>                 </xsl:for-each>
>
> which works fine, and I can get the data I need.  I grab the name  
> from the Step using :
>
>                     <xsl:value-of select="ancestor::Step[1]/@name" />
>
> But how do I grab the step number?  For example I want to know that  
> this is step 4 in this script, by counting how many <Step> elements  
> there are in the current <Script> element.  I thought it would just be :
>
>                    <xsl:value-of select="ancestor::Step[1]/position ()"/>
>
> But that doesn't work, and gives me a parsing error.  Am I maybe  
> going about the whole thing wrong?
>
> Thanks,
> Nick