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annotate tests/pprint.ur @ 1770:53d56d87fbd2

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More manual detail on registering error handlers
author Adam Chlipala <adam@chlipala.net>
date Sat, 19 May 2012 11:38:14 -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