Mercurial > urweb
diff tests/option.ur @ 244:71bafe66dbe1
Laconic -> Ur
| author | Adam Chlipala <adamc@hcoop.net> |
|---|---|
| date | Sun, 31 Aug 2008 08:32:18 -0400 |
| parents | tests/option.lac@ab86aa858e6c |
| children | 77a28e7430bf |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/tests/option.ur Sun Aug 31 08:32:18 2008 -0400 @@ -0,0 +1,25 @@ +datatype option a = None | Some of a + +val none_Hi : option string = None +val some_Hi = Some "Hi" +val none_some_Hi : option (option string) = None +val some_some_Hi = Some some_Hi + +val show = fn x => case x of None => "None" | Some x => x + +val show2 = fn x => case x of None => "None'" | Some x => show x + +val page = fn x => <html><body> + {cdata (show x)} +</body></html> + +val page2 = fn x => <html><body> + {cdata (show2 x)} +</body></html> + +val main : unit -> page = fn () => <html><body> + <li><a link={page none_Hi}>None1</a></li> + <li><a link={page some_Hi}>Some1</a></li> + <li><a link={page2 none_some_Hi}>None2</a></li> + <li><a link={page2 some_some_Hi}>Some2</a></li> +</body></html>