RE: XSLT - update attribute with new value

Hi,

> Now I have one final question. I want to add an attribute/value to the
> xml tree only if that attribute does not exist anywhere in
> the document
> source tree.
>
> Is there a way to do that in XSLT?

<xsl:template match="the-node-to-add-the-attribute-to">
  <xsl:copy>
    <xsl:if test="not(//@the-attribute)">
      <xsl:attribute name="the-attribute">the value</xsl:attribute>
    </xsl:if>
    <xsl:apply-templates select="@* | node()"/>
  </xsl:copy>
</xsl:template>
<xsl:template match="@* | node()">
  <xsl:copy>
    <xsl:apply-templates select="@* | node()"/>
  </xsl:copy>
</xsl:template>

Cheers,

Jarno