reg/index: registration policy: display '∅' if empty

pg-view/reg/index.php

@@ -30,7 +30,9 @@ else {
 <?php
 foreach (CONF['reg']['suffixes'] as $suffix => $condition)
 	if ($condition === 'all')
-		echo '<li><code>' . $suffix . ' </code></li>';
+		echo '<li><code>' . $suffix . ' </code></li>' . LF;
+if (!in_array('all', CONF['reg']['suffixes'], true))
+	echo '<li>∅</li>' . LF;
 ?>
 			</ul>
 		</dd>
@@ -41,7 +43,9 @@ foreach (CONF['reg']['suffixes'] as $suffix => $condition)
 <?php
 foreach (CONF['reg']['suffixes'] as $suffix => $condition)
 	if ($condition === 'approved')
-		echo '<li><code>' . $suffix . ' </code></li>';
+		echo '<li><code>' . $suffix . ' </code></li>' . LF;
+if (!in_array('approved', CONF['reg']['suffixes'], true))
+	echo '<li>∅</li>' . LF;
 ?>
 			</ul>
 		</dd>
@@ -52,7 +56,9 @@ foreach (CONF['reg']['suffixes'] as $suffix => $condition)
 <?php
 foreach (CONF['reg']['suffixes'] as $suffix => $condition)
 	if ($condition === 'none')
-		echo '<li><code>' . $suffix . ' </code></li>';
+		echo '<li><code>' . $suffix . ' </code></li>' . LF;
+if (!in_array('none', CONF['reg']['suffixes'], true))
+	echo '<li>∅</li>' . LF;
 ?>
 			</ul>
 		</dd>