Re: [xsl] Iterate through tree structure

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Jim,

If I understand this correctly, you don't actually have to 
recursively call a template. You only have to iterate through (a) 
ancestor dir elements of your parent::dir, and then (2) the parent 
dir element (and maybe its descendants).

The reason I say "maybe" is that the source as offered gives two page6 pages:

At 11:28 AM 3/31/2009, you wrote:
> <dir name="dir1" id="x1">
>  <page pname = "page1"></page>
>  <dir name="dir2" id="x2">
>    <page pname = "page2"></page>
>   <dir name="dir3" id="x3">
>     <page pname = "page3"></page>
>   </dir>
>   <dir name="dir4" id="x4">
>     <page pname = "page4"></page>
>    <dir name="dir5" id="x5">
>      <page pname = "page5"></page>
>      <page pname = "page6"></page>
>     <dir name="dir6" id="x6">
>       <page pname = "page6"></page>
>     </dir>
>    </dir>
>   </dir>
>  </dir>
> </dir>

So we don't know on what basis the dir6 is included in the result you 
say you want.

> The above is a snapshot as it can go down "n" levels.  If I'm at page6
> then my navigation needs to be:-
>
> <ul>
>   <li>dir1</li>
>   <li>dir2</li>
>   <li>dir4</li>
> </ul>
> <ul>
>   <li>dir5</li>
>   <li>dir6</li>
> </ul>

In any case, something like this (assuming the second page6 in your 
stated source is erroneous):

<xsl:template match="page6">
  <ul>
    <xsl:apply-templates mode="list-dir" select="parent::dir/ancestor::dir"/>
    <!-- apply-templates generates output ordered as they are in the source,
         so this will get dir1, dir2, dir4 -->
  </ul>
  <ul>
    <xsl:apply-templates mode="list-dir" 
select="parent::dir/descendant-or-self::dir"/>
    <!-- this gets dir5 (the parent of page6) and dir6 (the dir 
inside dir5) -->
  </ul>
</xsl:template>

I hope that helps --
Wendell



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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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