VIY / HTML-Template-Pro-0.9524 / templates-Pro / test_if5.tmpl 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
        "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
	<title>HTML::Template::Pro test template</title>
</head>

<body>
	TMPL_IF in &quot;&lt;&gt;&quot;:<br>
	<TMPL_IF var1>Variable 1 set!<TMPL_ELSE>Variable 1 not set!</TMPL_IF><br>

	TMPL_IF in &quot;&lt;!-- --&gt;&quot;:<br>
	<!-- TMPL_IF var1 -->Variable 1 set!<!-- TMPL_ELSE -->Variable 1 not set!<!-- /TMPL_IF --><br>
</body>
</html>