Re: xalan extensions - get the result tree

Jan Hoeft wrote:
> Hi,
> is it possible to get the result tree and work on it?
> 
> I am able to do the transformation on my own via executeChildTemplates. 
> But I have not found a way to process the result.
> 
> <xalan:component prefix="my" elements="countwords">
>    <xalan:script lang="javascript">
>        function countwords(context, elem){
>            transf = context.getTransformer();
>            transf.executeChildTemplates(elem,true);
>            return "";
>        }
>    </xalan:script>
> </xalan:component>
> 
> <xsl:template match="/">
>    <my:countwords>
>        <text>
>            some words
>            <xsl:value-of select="."/>
>        </text>
>    </my:countwords>
> </xsl:template>
Instead of doing this, I would create an extension function to count 
words, then do the following:

<xsl:template match="/">
   <xsl:variable name="text">
         some words
         <xsl:value-of select="."/>
   </xsl:variable>

   <text count="{ext:count-words($text)}">
     <xsl:value-of select="$text"/>
   </text>
</xsl:template?

If the whitespace within the "text" element is not interesting, you 
could create a string variable, instead of a result tree fragment variable:

   <xsl:variable name="text" select="concat('some words ', .)" />

which is more efficient.

Note that it's also possible to write a recursive template to count 
words, if you don't want to write an extension function.

Dave