Ur/Web: tests/url.ur annotate

Add tail call optimization to interpretation

author	Adam Chlipala <adamc@hcoop.net>
date	Thu, 24 Sep 2009 15:45:37 -0400
parents	c125df6fabfc
children

rev	line source
adamc@717	1 fun readersChoice r = return <xml><body>
adamc@770	2 {case checkUrl r.Url of
adamc@770	3 None => <xml>I can't do that, Dave.</xml>
adamc@770	4 \| Some url => <xml><a href={url}>Your pick, boss</a></xml>}
adamc@717	5 </body></xml>
adamc@717	6
adamc@717	7 fun main () : transaction page = return <xml><body>
adamc@770	8 <a href="http://en.wikipedia.org/wiki/Wikipedia:About">Learn</a>
adamc@717	9 <br/>
adamc@717	10
adamc@717	11 <form><textbox{#Url}/> <submit action={readersChoice}/></form>
adamc@717	12 </body></xml>

Mercurial > urweb