Mercurial > urweb
view tests/url.ur @ 1742:fca4a6d05ac1
More diagnostic information about some type class resolution failures
author | Adam Chlipala <adam@chlipala.net> |
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date | Fri, 04 May 2012 10:33:04 -0400 |
parents | c125df6fabfc |
children |
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fun readersChoice r = return <xml><body> {case checkUrl r.Url of None => <xml>I can't do that, Dave.</xml> | Some url => <xml><a href={url}>Your pick, boss</a></xml>} </body></xml> fun main () : transaction page = return <xml><body> <a href="http://en.wikipedia.org/wiki/Wikipedia:About">Learn</a> <br/> <form><textbox{#Url}/> <submit action={readersChoice}/></form> </body></xml>