RE: [xsl] Generating a collection of unique elements.

["Michael Kay" <mike@xxxxxxxxxxxx>]

<xsl:template match="/">
  <newdoc>
    <xsl:for-each select="distinct-values(//foo/@name)">
      <xsl:element name="{.}"/>
    </xsl:for-each>
  </newdoc>
</xsl:template>

Michael Kay
http://www.saxonica.com/

> -----Original Message-----
> From: Nathan Potter [mailto:ndp@xxxxxxxxxxxxxxxxxxxx] 
> Sent: 10 June 2008 17:51
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Cc: Nathan Potter
> Subject: [xsl] Generating a collection of unique elements.
> 
> 
> Greetings,
> 
> I have thought about this for a couple of days, and I don't 
> really have an ideas about how to get the result I want. 
> Maybe someone here can help!
> 
> In my source document there are a number of <foo> elements. 
> They all have a "name" attribute. They can occur as child 
> elements of any other element in the document, at any level 
> of nesting.
> 
> My XSL needs to process these <foo> elements and produce a 
> list of the unique names.
> 
> Source Example:
> 
> <doc>
>      <foo name="a" />
>      <foo name="d" />
> 
> 
>      <thing1>
>          <foo name="a" />
>          <foo name="b" />
>          <foo name="c" />
>      </thing1>
> 
>      <thing2>
>              <foo name="a" />
>          <thing3>
>              <foo name="b" />
>              <foo name="c" />
>          </thing3>
>              <foo name="d" />
>              <foo name="e" />
>      </thing2>
> </doc>
> 
> 
> Desired Result:
> 
> <newDoc>
>      <a />
>      <b />
>      <c />
>      <d />
>      <e />
> </newDoc>
> 
> 
> Anybody have a suggestion?
> 
> 
> Thanks,
> 
> Nathan
> 
> ============================================================
> Nathan Potter                 Oregon State University, COAS
> ndp at coas.oregonstate.edu   104 Ocean. Admin. Bldg.
> 541 737 2293 voice            Corvallis, OR   97331-5503
> 541 737 2064 fax