Ur/Web: tests/cookieClear.ur annotate

Catching integer divisions by zero

author	Adam Chlipala <adam@chlipala.net>
date	Sat, 03 Dec 2011 09:44:07 -0500
parents	bd6c90f5a428
children

rev	line source
adam@1423	1 cookie c : int
adam@1423	2
adam@1423	3 fun setit () =
adam@1423	4 setCookie c {Value = 13,
adam@1423	5 Expires = None,
adam@1423	6 Secure = False};
adam@1423	7 return <xml/>
adam@1423	8
adam@1423	9 fun doit () =
adam@1423	10 ro <- getCookie c;
adam@1423	11 clearCookie c;
adam@1423	12 case ro of
adam@1423	13 None => return <xml>None</xml>
adam@1423	14 \| Some v => return <xml>Some {[v]}</xml>
adam@1423	15
adam@1423	16 fun main () = return <xml><body>
adam@1423	17 <form><submit value="Set it!" action={setit}/></form>
adam@1423	18 <form><submit value="Get busy!" action={doit}/></form>
adam@1423	19 </body></xml>

Mercurial > urweb