Mercurial > urweb

annotate tests/pprint.ur @ 2307:6ae9a2784a45

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Return to working version mode
author Adam Chlipala <adam@chlipala.net>
date Sun, 20 Dec 2015 14:39:50 -0500
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