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comparison forms.ur @ 1:4d8165e8f89a

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Some help with building forms
author Adam Chlipala <adam@chlipala.net>
date Thu, 06 Jan 2011 16:45:47 -0500
parents
children 1e04008eaef7
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0:37eefd0a2ed4 1:4d8165e8f89a
1 datatype readiness a = Ready of a | Waiting | Invalid of string
2 datatype rpcResult a = Success of a | Failure of string
3
4 fun warning [a] (s : signal (readiness a)) =
5 <xml><dyn signal={v <- s;
6 return (case v of
7 Invalid s => <xml><b>{[s]}</b></xml>
8 | _ => <xml/>)}/></xml>