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view tests/lengthGe.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 f96e708b4b93
children
line wrap: on
line source
fun main () : transaction page =
    s <- source "";
    return <xml><body>
      <ctextbox source={s}/>
      <dyn signal={v <- signal s;
                   return (txt (strlenGe v 3))}/>
    </body></xml>