Mercurial > urweb
view tests/env.ur @ 1836:276fa06428ba
Ignore polymorphism in JavaScript calls to custom FFI functions, allowing a kind of simple dynamic typing (unsafe, of course)
author | Adam Chlipala <adam@chlipala.net> |
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date | Tue, 11 Dec 2012 15:58:23 -0500 |
parents | 3d922a28370b |
children |
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fun handler r = vo <- getenv (blessEnvVar r.Nam); return <xml><body> {case vo of None => <xml>Not set</xml> | Some v => <xml>Set to: {[v]}</xml>} </body></xml> fun main () : transaction page = term <- getenv (blessEnvVar "TERM"); return <xml><body> TERM = {case term of None => <xml>Nada</xml> | Some v => txt v} <form> What would you like to know? <textbox{#Nam}/> <submit action={handler}/> </form> </body></xml>