Re: [xsl] Node selection based on parent attribute

[Wendell Piez <wapiez at mulberrytech dot com>]

Katharine,

Another approach (besides the ones using for-each) is just to use the 
built-in descent of the tree, as in something like:

<xsl:template match="menu">
  <xsl:if select="ancestor::menu[@id=$id']">
   <xsl:value-of select="@id"/>
   <!-- copies out this menu's @id if it has an ancestor
        menu with @id = $id -->
  </xsl:if>
  <xsl:apply-templates/>
  <!-- continues the tree traversal in case there are any below -->
</xsl:template>

Make sure the parameter is set to the *value* of the id ('1', '6', 
whatever) whose descendants you want.

Cheers,
Wendell

At 10:51 AM 8/30/2002, you wrote:
> Thanks for that.
> Would there be an easy way of making that recursive.  So if there were 
> sub/sub nodes under <menu id=6>, ie
> <menu id=6>
> <menu id=8>
>  <menu id=9/>
>  <menu id=10/>... and so on
> </menu>
> </menu>

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Wendell Piez                            mailto:wapiez@mulberrytech.com
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