Re: [xsl] two-level grouping xslt 2.0

[Terry Ofner <tofner@xxxxxxxxxxx>]

Your two template rules work well. However, I think I have managed to  
misrepresent the problem--one of the main pitfalls of submitting  
queries, it seems.

The problem is this: The <story-title> element is the opening element  
of a "story" (as opposed the <story> element which is courtesy of the  
xhtml export from InDesign). At any rate, each "story" is composed of  
multiple elements such as <story>, <page>, and <imggroup>. That is  
why I am trying to execute a two-level grouping rule. The outer for- 
each-group should structure the <level1 class="unit"> hierarchy; the  
inner for-each-group should structure the <level2 class="selection">.

Here is another representation of the structure:

<book>
<bodymatter>
!--level1 opening element goes here-->
<story>
	<cluster_num>Cluster One</cluster_num>
</story>
<!--level2 opening element goes here-->
<story>
	<story-title>story one</story-title>
</story>
<story>
	<imggroup>image ref</imggroup>
</story>
<story>
	<pagenum>1</pagenum>
</story>
<story>
	<p></p>
	<p></p>
	<p></p>
</story>
<story>
	<p></p>
	<p></p>
	<p></p>
</story>
<!--level2 closing element goes here-->

<!--level2 opening element goes here-->
<story>
	<story-title>tory two</story-title>
</story>

<story>
	<p></p>
	<p></p>
	<p></p>
</story>
<story>
	<p></p>
	<p></p>
	<p></p>
</story>
<!--level2 closing element goes here-->
!--level1 closing element goes here-->


!--level1 opening element goes here-->
<story>
	<cluster_num>Cluster Two</cluster_num>
</story>

<!--multiple stories, poems, articles, etc.-->

</bodymatter>
</book>


Can I accomplish this using two separate rules? It seems to me that I  
have only seen such two-level grouping inside one template rule.

Terry

Terry Ofner
1541 Northbrook Drive
Indianapolis, IN 46260
Voice: 317-870-1992
Fax: 317-870-7101

tofner@xxxxxxxxxxx




On Feb 28, 2008, at 1:05 PM, Martin Honnen wrote:

> Terry Ofner wrote:
> > Sorry about the poor xml of the input. It was way too long to  
> > include and my edit dropped off some closing </story> tags. I have  
> > tried to fix in the output and input below.
>
> The following stylesheet groups by groups starting with story 
> [cluster_num] and then simply processes the groups where story 
> [story-title] have a special template wrapping those elements in a  
> level2 element. That achieves the result you have described.
>
>
> <xsl:stylesheet
>   xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
>   version="2.0">
>
>   <xsl:output method="xml" indent="yes"/>
>
>   <xsl:strip-space elements="*"/>
>
>   <xsl:template match="@* | node()">
>     <xsl:copy>
>       <xsl:apply-templates select="@* | node()"/>
>     </xsl:copy>
>   </xsl:template>
>
>   <xsl:template match="bodymatter">
>     <xsl:copy>
>       <xsl:apply-templates select="@*"/>
>       <xsl:for-each-group
>         select="*"
>         group-starting-with="story[cluster_num]">
>           <level1 class="unit" unitnum="{position()}">
>             <xsl:apply-templates select="current-group()"/>
>           </level1>
>       </xsl:for-each-group>
>     </xsl:copy>
>   </xsl:template>
>
>   <xsl:template match="story[story-title]">
>     <level2 class="selection">
>       <xsl:copy>
>         <xsl:apply-templates select="@* | node()"/>
>       </xsl:copy>
>     </level2>
>   </xsl:template>
>
> </xsl:stylesheet>
> --
>
> 	Martin Honnen
> 	http://JavaScript.FAQTs.com/