Mercurial > urweb
view tests/parseInt.ur @ 1714:d6c45026240d
Do a lot more type simplification for error messages
author | Adam Chlipala <adam@chlipala.net> |
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date | Mon, 16 Apr 2012 09:46:42 -0400 |
parents | 4798ad652c94 |
children |
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fun main () : transaction page = s <- source ""; return <xml><body> <ctextbox source={s}/> <button onclick={n <- get s; case read n of None => alert "Invalid" | Some n => alert (show (n + 1))}/> </body></xml>