Question

I had to add an href attribute to the following xml but not every subprocess will have one.

<?xml version="1.0"?>
<processes>
    <process nr="1" name="Process1" >
        <subprocess nr="1" name="Subprocess1" href="some/relative/link.html"></subprocess>
        <subprocess nr="2" name="Subprocess2" href="#"></subprocess>
        <subprocess nr="3" name="Subprocess3"></subprocess>
    </process>
</processes>

What do I need to change in my original XSL to produce the below HTML output?
How do I deal with the different href attribute values?

XSL:

<xsl:template name="subprocess">
<xsl:call-template name="linking"/>
</xsl:template>
 <xsl:template name="linking">
 <xsl:variable name="processNo" select="@nr"/>   
 <ul class="myframe">
  <xsl:for-each select="subprocess">
    <li>
      <a class="myButton" href="p{$processNo}s{@nr}.html">
        <xsl:value-of select="@nr"/>
        <br/>
        <xsl:value-of select="@name"/>
      </a>
    </li>
  </xsl:for-each>
</ul>
</xsl:template>

HTML:

<ul class="myframe">
    <li><a class="linkButton" href="some/relative/link.html">Subprocess1</a></li>
    <li><a class="noLink" href="#">Subprocess2</a></li>
    <li><a class="myButton" href="p1s3.html">Subprocess3</a></li>
</ul>

So, depending on the href attribute I want to assign different CSS classes too.

Thanks for your help.

Answer 1

Use xsl:choose and xsl:attribute:

<xsl:template name="linking">
    <xsl:variable name="processNo" select="@nr"/>
    <ul class="myframe">
        <xsl:for-each select="subprocess">
            <li>
                <a>
                    <xsl:choose>
                        <xsl:when test="@href eq '#'">
                            <xsl:attribute name="class" select="'noLink'"/>
                        </xsl:when>
                        <xsl:when test="not(@href)">
                            <xsl:attribute name="class" select="'myButton'"/>
                            <xsl:attribute name="href"
                                select="concat('p',$processNo,'s',@nr,'.html')"/>
                        </xsl:when>
                        <xsl:otherwise>
                            <xsl:sequence select="@href"/>
                        </xsl:otherwise>
                    </xsl:choose>
                    <xsl:value-of select="name()"/>
                </a>
            </li>
        </xsl:for-each>
    </ul>
</xsl:template>