src/Tools/jEdit/src/text_structure.scala

       close: Token => Boolean,
       reset: Token => Boolean,
       restrict: Token => Boolean,
       it: Iterator[Text.Info[Token]]): Option[(Text.Range, Text.Range)] =
     {
-      val range1 = it.next.range
+      val range1 = it.next().range
       it.takeWhile(info => !info.info.is_command || restrict(info.info)).
         scanLeft((range1, 1))(
           { case ((r, d), Text.Info(range, tok)) =>
               if (open(tok)) (range, d + 1)
               else if (close(tok)) (range, d - 1)