Re: [xsl] for-each-group

["Martin Honnen martin.honnen@xxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>]

On 28.03.2018 17:53, Rick Quatro rick@xxxxxxxxxxxxxx wrote:

> I have a <step> element that looks something like this:
>
> <steps>
>
>    <step>
>
>      <para>Intro stuff</para>
>
>      <para>More intro stuff</para>
>
>      <figure/>
>
>      <figure/>
>
>      <para>Conclusion stuff</para>
>
>      <para>More conclusion stuff</para>
>
>    </step>
>
> </steps>
>
> I want 4 separate groups:
>
> 1) First two <para> elements.
>
> 2) First <figure>
>
> 3) Second <figure>
>
> 4) Last two <para> elements.

Can you explain the rules for that result, do you want to group any 
adjacent "para" element into one group but keep each "figure" element in 
its own group?

In that case you can use

  <xsl:for-each-group select="*" group-adjacent="boolean(self::para)">
    <xsl:choose>
       <xsl:when test="current-grouping-key()">
         <group>
            <xsl:apply-templates select="current-group()"/>
         </group>
      </xsl:when>
      <xsl:otherwise>
        <xsl:for-each select="current-group()">
           <group>
              <xsl:apply-templates select="."/>
           </group>
        </xsl:for-each>
      </xsl:otherwise>
   </xsl:choose>
  </xsl:for-each-group>