Question

I have a situation where the param won’t be set, but my attempts to capture & handle the sitation aren’t working.

I’m using the following:

<xsl:template match="xs:complexType">
  <xsl:param name="prefix" />

  <xsl:variable name="prefix-no-core">
    <xsl:choose>
      <!-- if no value, default to 'AcRec' -->
      <xsl:when test="not($prefix)"> 
        <xsl:value-of select="'AcRec'" />
      </xsl:when>
      <!-- if 'core', leave as empty string -->
      <xsl:when test="$prefix = 'core'">
      </xsl:when>
      <!-- if 'AcRec', set the value -->
      <xsl:when test="$prefix = 'AcRec'">
        <xsl:value-of select="$prefix" />
      </xsl:when>               
    </xsl:choose>
  </xsl:variable>

  <xs:complexType name="{concat($prefix-no-core, @name)}">
  ...
</xsl:template>

I’ve also tried $prefix=” in the first test – neither work. but if I use:

<xsl:value-of select="not($prefix)" />

… the value prints out as true. But using that in my xsl:choose doesn’t produce any output.

Answer 1

Of the suggestions made to date, the only solution that worked was to always set the parameter value when a call to the template is made. For example, previously I had:

<xsl:apply-templates select="//xs:complexType[@name='AddressType']" />

This had to be changed to:

<xsl:apply-templates select="//xs:complexType[@name='AddressType']">
  <xsl:with-param name="prefix" select="'AcRec'" />
</xsl:apply-templates>

I’d really like to know why not($param) and $param=” don’t work in a WHEN test, yet I can get the value of not($param) in a xsl:value-of statement.