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view tests/onerrorE.ur @ 2009:799be3911ce3

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Monadic bind supports patterns
author Adam Chlipala <adam@chlipala.net>
date Fri, 02 May 2014 17:16:02 -0400
parents b4480a56cab7
children
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fun err x = return <xml><body>
  <h1>Bad thing!</h1>

  {x}
</body></xml>