[xsl] select distinct

[Richard Lander <rlander@xxxxxxxxxxxxx>]

 Hello,

I'm having some trouble with selecting distinct nodes (no duplicates). I am
using the following algorithm at the moment, which works, but am wondering
if there is something more elegant. generate-id() seems too heavy-handed.

<xsl:template name="element">
  <xsl:param name="path"/>
  <xsl:for-each select="$path//xdr:element">
      <xsl:if test="self::xdr:element[generate-id() =
generate-id($path//xdr:element[@type = current()/@type][1])]">
        <A href="javascript:element('{@type}')">
          <xsl:value-of select="@type"/>
        </A>
      </xsl:if>
  </xsl:for-each>
</xsl:template>

I don't have my Mike Kay book beside me at the moment, so can't look for any
tips on this likely well-documented problem.

I will mention that the elements are not all siblings. Some are, some are
further down. The input looks like:

x
x
x
y
  x
  x
  x
y
  x
  x
  x
x
x

I'm trying to get all the x elements with distinct @type values.

Thanks,

Rich

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