annotate tests/pprint.ur @ 2058:235b33d62275

A new test for <button>
author Adam Chlipala <adam@chlipala.net>
date Sun, 17 Aug 2014 15:56:43 -0400
parents 318ba997a149
children
rev   line source
adam@1727 1 fun isNone [a] (x : option a) =
adam@1727 2 case x of
adam@1727 3 None => True
adam@1727 4 | Some _ => False