Re: [xsl] Iterating over all the Ancestors

["bix xslt" <bix_xslt@xxxxxxxxxxx>]

Thanks Wendell!

Suppose I wanted to stop at a given node or after a certain number of 
ancestors.  What would I do to tweak your original solution?



> From: Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>
> Reply-To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re: [xsl] Iterating over all the Ancestors
> Date: Tue, 26 Nov 2002 13:47:50 -0500
>
> Bix,
>
> Walking up the tree is easy:
>
> <xsl:for-each select="ancestor::*">
>
> walks all the elements up to the root (but not including it: it's not an 
> element). You can include the context node itself by using the 
> ancestor-or-self:: axix.
>
> So in your case
>
> <xsl:template match="data">
>   <xsl:for-each select="ancestor-or-self::*">
>     <xsl:if test="ancestor::*">
>       <!-- if the ancestor element has an ancestor element, it's not
>            first: prepend it with some formatting -->
>       <xsl:text>  ->  </xsl:text>
>     </xsl:if>
>     <xsl:value-of select="text"/>
>     <!-- reports the value of the <text> element child, which is our label 
> -->
>   </xsl:for-each>
> </xsl:template>
>
> By default, a for-each traverses in document order, so this will go 
> top-down. (There are ways to tweak it if you want something different.)
>
> I hope this helps,
> Wendell
>
> At 01:19 PM 11/26/2002, you wrote:
> >   I have been trying to figure out a way of iterating over the parent 
> > nodes of a particular child all the way to the root of the tree.
> > Essentially, I'd like to display the path which I have taken to get to the 
> > current child, but I would like to do it in such a way that at a future 
> > point in time, I can modify my style sheet to include hyperlinks at each 
> > parent node.  An example xml file would be:
> >
> > <data><text>Title for web page</text>
> >    <data><text>Motivation</text>
> >        <data><text>White Pages</text></data>
> >        <data><text>References</text></data>
> >    </data>
> >    <data><text>Requirements</text>
> >        <data><text>Software</text></data>
> >        <data><text>Hardware</text></data>
> >    </data>
> >    <data><text>Design</text>
> >        <data><text>Interfaces</text>
> >            <data><text>Hardware-Software</text></data>
> >            <data><text>Legacy Software</text></data>
> >        </data>
> >        <data><text>Functions</text></data>
> >    </data>
> >    <data><text>Implementation</text></data>
> >    <data><text>Verification</text></data>
> >    <data><text>Documentation</text></data>
> >    <data><text>Archive</text></data>
> > </data>
> >
> > Suppose that we are at the following X-Path:
> >    /<root data>/<Design data>/<Interfaces data>/<Hardware-Software data>
> >
> > I would like to develop a template that essentially displays the path 
> > above in the following way:
> >
> >    Title for web page  ->  Design  ->  Interfaces  ->  Hardware-Software
> >
> > At each point, if I added a <href> node within the xml tree as a child of 
> > the <data> element, then I would like to be able to hyperlink each 
> > individual node...
> >
> > Thanks!
> > Bix
>
>
> ======================================================================
> Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
> Mulberry Technologies, Inc.                http://www.mulberrytech.com
> 17 West Jefferson Street                    Direct Phone: 301/315-9635
> Suite 207                                          Phone: 301/315-9631
> Rockville, MD  20850                                 Fax: 301/315-8285
> ----------------------------------------------------------------------
>   Mulberry Technologies: A Consultancy Specializing in SGML and XML
> ======================================================================
>
>
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