Mercurial > urweb
annotate tests/parseInt.ur @ 1630:4798ad652c94
Stop [read] from raising an exception for invalid [int] strings
| author | Adam Chlipala <adam@chlipala.net> |
|---|---|
| date | Sun, 04 Dec 2011 15:13:53 -0500 |
| parents | |
| children |
| rev | line source |
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| adam@1630 | 1 fun main () : transaction page = |
| adam@1630 | 2 s <- source ""; |
| adam@1630 | 3 return <xml><body> |
| adam@1630 | 4 <ctextbox source={s}/> |
| adam@1630 | 5 <button onclick={n <- get s; |
| adam@1630 | 6 case read n of |
| adam@1630 | 7 None => alert "Invalid" |
| adam@1630 | 8 | Some n => alert (show (n + 1))}/> |
| adam@1630 | 9 </body></xml> |