Re: [xsl] for-each over variable problem

[Joerg Heinicke <joerg dot heinicke at gmx dot de>]

Your problem is well-known. It's because of two different data-types in 
XSLT: nodeset and result tree fragment. In your variable $Modules you 
are creating a RTF. For a nodeset you have to convert this via processor 
specific extension functions. I don't know the extensions of Sablotron, 
but Saxon, Xalan and MSXML have them. An example:

<xsl:stylesheet version="1.0" xmlns:xsl=".." 
xmlns:xalan="http://xml.apache.org/xalan"; exclude-result-prefixes="xalan">

<xsl:variable name="Modules">
     <module>InternalCS</module>
     <module>FileCS</module>
</xsl:variable>

<xsl:template match="/">
     <xsl:for-each select="nodeset($Modules)/module">
         <!-- do anything -->
     </xsl:for-each>
</xsl:template>

</xsl:stylesheet>

You have to do something like this in your event-template.

Regards,

Joerg

Jakub.Valenta@Deio.net wrote:

> Hi all,
> I am trying to iterate over a variable using for-each, and I am getting
> errors with majority of parsers :-(.
> The only one working is Sablotron (I am using cooktop, to test which engine
> works).
> 
> the style sheet looks like
> 
> <xsl:stylesheet version="1.0" xmlns:xsl
> ="http://www.w3.org/1999/XSL/Transform";>
> 
> 
>    <!-- VARIABLE -->
> 
>    <xsl:variable name="Modules">
>       <module>InternalCS</module>
>       <module>FileCS</module>
>    </xsl:variable>
> 
>    <xsl:template match="wrapper">
>       <xsl:for-each select="event">
>          <xsl:call-template name="event" />
>       </xsl:for-each>
>    </xsl:template>
> 
> 
>   <!-- THE PROBLEMATIC FOR-EACH -->
> 
>    <xsl:template name="event">
>    <xsl:for-each select="$Modules/module">module</xsl:for-each>
>    </xsl:template>
> 
> </xsl:stylesheet>
> 
> and the input is
> 
> <wrapper>
>  <event>1</event>
>  <event>2</event>
>  <event>3</event>
> ..
> </wrapper>
> 
> In Michael Kay's book is example like this on p.343, but id does not work
> here. Any idea why?
> 
> I usually get error like " Reference to variable or parameter 'Modules'
> must evaluate to a node list."
> 
> br,
> 
> Jakub


-- 

System Development
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