Attribute Value Templates

• Make the symbol an ID attribute so it can be linked to:

  <h2 ID="He">Helium [He]</h2>

• Need a way to copy nodes from the input document to attribute values in the output document.

• Attribute value templates are the solution. Enclose the XPath expression inside the literal attribute value in curly braces.

   <xsl:template match="ATOM">
      <h2 id="{SYMBOL}"><xsl:value-of select="NAME"/> [<xsl:value-of select="SYMBOL"/>]</h2>
      <ul>
      <xsl:apply-templates select="ATOMIC_NUMBER"/>
      <xsl:apply-templates select="ATOMIC_WEIGHT"/>
      <xsl:apply-templates select="ATOMIC_RADIUS"/>
      <xsl:apply-templates select="ATOMIC_VOLUME"/>
      <xsl:apply-templates select="DENSITY"/>
      </ul>
    </xsl:template>

• An attribute value can contain multiple attribute value templates interspersed with literal data.