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view tests/pprint.ur @ 1783:5bc4fbf9c0fe

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New event records for key and mouse handlers
author Adam Chlipala <adam@chlipala.net>
date Sat, 21 Jul 2012 10:02:53 -0400
parents 318ba997a149
children
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fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False