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annotate tests/pprint.ur @ 1784:e6bc6bbd7a32

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Update demo code for key/mouse handler change
author Adam Chlipala <adam@chlipala.net>
date Sat, 21 Jul 2012 10:12:35 -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