Mercurial > urweb
view demo/metaform.ur @ 1690:a7b70c7b3f1a
Avoid 'not fully determined' errors for fancy tasks
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 03 Mar 2012 16:20:54 -0500 |
parents | c7b9a33c26c8 |
children |
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functor Make (M : sig con fs :: {Unit} val fl : folder fs val names : $(mapU string fs) end) = struct fun handler values = return <xml><body> {@mapUX2 [string] [string] [body] (fn [nm :: Name] [rest ::_] [[nm] ~ rest] name value => <xml> <li> {[name]} = {[value]}</li> </xml>) M.fl M.names values} </body></xml> fun main () = return <xml><body> <form> {@foldUR [string] [fn cols => xml form [] (mapU string cols)] (fn [nm :: Name] [rest ::_] [[nm] ~ rest] name acc => <xml> <li> {[name]}: <textbox{nm}/></li> {useMore acc} </xml>) <xml/> M.fl M.names} <submit action={handler}/> </form> </body></xml> end