annotate tests/pprint.ur @ 1924:b44138e6a3bf

Add activeHead tag. activeHead is similar to active but produces xhead instead of xbody
author Sergey Mironov <grrwlf@gmail.com>
date Fri, 06 Dec 2013 13:59:39 +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