Re: [xsl] Recursive grouping won't recurse...

["Robert S. Koberg" <rob at koberg dot com>]

Hi Peter,

Hunsberger, Peter wrote:
> I'm still shaky on grouping with keys so I've probably missed something
> obvious, but I can't get a grouping to work when it has to group on a
> recursive structure.  The input looks essentially like the following:
>
> 	<list>
> 	   <a type="1" flag="false"/>
> 	   <b type="2" flag="false"/>
> 	   <c type="3" flag="false">
> 	      <d type="4" flag="true"/>
> 	      <e type="4" flag="true"/>
> 	      <f type="5" flag="true"/>
> 	     <g type="5" flag="true"/>
> 	   </c>
> 	</list>
> 	<list>
> 	   <a type="1" flag="false"/>
> 	   <b type="2" flag="false"/>
> 	   <c type="3" flag="false">
> 	      <d type="7" flag="false">
> 	         <e type="4" flag="true"/>
> 	         <e type="4" flag="true"/>
> 	      </d>
> 	   </c>
> 	</list>
>
> Where, if there are adjacent nodes with the same type than the flag will be
> true, otherwise the flag will always be false.  It could be possible for
> adjacent nodes to have the same type with the flag set to false. The same
> structure could go many more levels deep than shown here. The desired output
> is
Off the top of head, so test it out...

<xsl:template match="list">
 <xsl:apply-templates/>
</xsl:template>

<xsl:template match="a | b | c | d | e | f">
  <xsl:element name="name()">
    <xsl:attribute  name="type">
      <xsl:value-of select="@type"/>
    </xsl:attribute>
    <xsl:attribute  name="flag">
      <xsl:value-of select="@flag"/>
    </xsl:attribute>
    <xsl:if test="boolean(./*)">
      <group>
        <xsl:apply-templates/>
      </group>
    </xsl:if>
  </xsl:element>
</xsl:template>

best,
-Rob

> 	<list>
> 	   <a type="1" flag="false"/>
> 	   <b type="2" flag="false"/>
> 	   <c type="3" flag="false">
> 	      <group>
> 	         <d type="4" flag="true"/>
> 	         <e type="4" flag="true"/>
>                     </group>
> 	      <group>
> 	         <f type="5" flag="true"/>
> 	        <g type="5" flag="true"/>
> 	      </group>
> 	   </c>
> 	</list>
> 	<list>
> 	   <a type="1" flag="false"/>
> 	   <b type="2" flag="false"/>
> 	   <c type="3" flag="false">
> 	      <d type="7" flag="false">
> 	         <group>
> 	            <e type="4" flag="true"/>
> 	            <e type="4" flag="true"/>
> 	         </group>
> 	      </d>
> 	   </c>
> 	</list>



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