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Sql.insertIfMissing and deleteByKey (partly from Ron de Bruijn)
author Adam Chlipala <adam@chlipala.net>
date Sun, 11 Dec 2011 14:04:34 -0500
parents 8eaaca74a64c
children
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(** Datatypes for describing parse results *)

datatype parse a =
         Success of a
       | Failure of string