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Saving proper environments, to use in displaying nested error messages
author Adam Chlipala <adam@chlipala.net>
date Sat, 21 Apr 2012 14:57:00 -0400
parents b4480a56cab7
children
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line source
fun err x = return <xml><body>
  <h1>Bad thing!</h1>

  {x}
</body></xml>