RE: Generate Yahoo-like directory structure

Much easier in 2.0: use tokenize() to split the path into a sequence of
names, then use a recursive function:

<xsl:function name="f:probe" as="node()*">
  <xsl:param name="origin" as="node()*/>
  <xsl:param name="path" as="xs:string*"/> 
  <xsl:sequence select="if (empty($path))
                        then $origin
                        else f:probe($origin/element[@name=$path[1]],
                                     remove($path,1))"/>
</xsl:function>

<xsl:param name="path" as="xs:string" required="yes"/>

<xsl:template match="/"> 
  <xsl:copy-of select="f:probe(., tokenize($path, '/'))"/>
</xsl:template>

In 1.0 you can use similar logic but it will be much more verbose, and
you'll have to output the copied subtree from the innermost level of
call-template rather than from the outermost template as here.


Michael Kay



> -----Original Message-----
> From: Philipp Burkert [mailto:mailings@xxxxxxxxxx] 
> Sent: 11 May 2004 14:53
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject:  Generate Yahoo-like directory structure
> 
> Hej folks,
> 
> I am sorry, if this has been asked before, but I did research 
> on the FAQ and
> the mailing list archive and could not find any information. 
> It would be
> nice if someone could help me or give me a link to a thread 
> where it has
> been discussed.
> 
> My target is to build a HTML based yahoo-like directory 
> structure out of a
> single XML file. The file looks somewhat like this.
> 
> <element name="Main">
>   <element name="Business">
>     <element name="Finance"/>
>   </element>
>   <element name="Computers">
>     <element name="Internet"/>
>     <element name="WWW">
>       <element name="Chat"/>
>       <element name="DNS"/>
>     </element>
>   </element>
>   <element name="Business"/>
> </element>
> 
> As a XSL param I could offer a path like "Main/Business/" 
> that identifies
> the page that should be generated. The page to be generated 
> should contain
> all subelements to the "Business" element and a list of 
> parent elements that
> can be used to generate a Navigation menue. (In this case 
> only finance, of
> course.) 
> 
> This task looks so common I really wonder why I can not find anything
> online. Thankx for your help in advance.
> 
> Best Regards
> 
> PHILIPP BURKERT
> mailings@xxxxxxxxxx