="ts3">Multi-line conditional processing blocks may be nested within one another. For example:</span></p>
      <p class="ps15"><span class="ts22">&lt;IF DEFINED_</span><span class="ts24">identifier1</span><span class="ts22">&gt;</span><br /><span class="ts4">[code]</span><br /><span class="ts22">&lt;IF DEFINED_</span><span class="ts24">identifier2</span><span class="ts22">&gt;</span><br /><span class="ts4">code</span><br /><span class="ts22">&lt;/IF&gt;</span><br /><span class="ts4">[code]</span><br /><sp