diff --git a/base.php b/base.php
index ac52280..0a3ab44 100644
--- a/base.php
+++ b/base.php
@@ -742,6 +742,13 @@ function matches_comparing_expression($expr, $o_text, $debug=false) {
 					echo '<br>';
 				}
 				break;
+			case 'len':
+			case 'length':
+			case 'size':
+				$bool = false;
+				if (preg_match('/^(\<|\>)\=?\s*\d+$/', $content))
+					eval('$bool = strlen($o_text) '.$content.';');
+				break;
 
 		}
 		$result = str_replace($t, $bool ? 'true' : 'false', $result);