diff --git a/lime.php b/lime.php
index ff4020b..6adb559 100755
--- a/lime.php
+++ b/lime.php
@@ -1348,6 +1348,9 @@ if ($_SERVER['argv']) {
 	}
 
 	array_shift($_SERVER['argv']); // Strip out the program name.
+
+	$timer = microtime(true);
+
 	foreach ($_SERVER['argv'] as $path) {
 		$code .= parse_lime_grammar($path);
 	}
@@ -1370,4 +1373,8 @@ if ($_SERVER['argv']) {
  */
 {$code}
 CODE;
+
+echo PHP_EOL
+	. '// Time: ' . (microtime(true) - $timer) . ' seconds' . PHP_EOL
+	. '// Memory: ' . memory_get_peak_usage() . ' bytes' . PHP_EOL;
 }
diff --git a/parse_engine.php b/parse_engine.php
index 17c79d2..1fd108c 100644
--- a/parse_engine.php
+++ b/parse_engine.php
@@ -42,7 +42,7 @@ class parse_unexpected_token extends parse_error {
 
 class parse_premature_eof extends parse_error {
 	public function __construct(array $expect) {
-		parent::__construct('Premature EOF, expected {' . implode(', ', $expect) . '}');
+		parent::__construct('Premature EOF');
 	}
 }
 
@@ -267,6 +267,12 @@ class parse_engine {
 	private function get_steps() {
 		$out = array();
 		foreach($this->current_row() as $type => $row) {
+			foreach($this->rule as $rule) {
+				if ($rule['symbol'] == $type) {
+					continue 2;
+				}
+			}
+
 			list($opcode) = explode(' ', $row, 2);
 			if ($opcode != 'e') {
 				$out[] = $type;