Mercurial > urweb

view demo/sum.ur @ 600:d1cce194180d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Do proper insertion of dynamic content within nested DOM containers
author Adam Chlipala <adamc@hcoop.net>
date Sun, 11 Jan 2009 10:41:38 -0500
parents 6a0e54400805
children f4f2b09a533a
line wrap: on
line source
fun sum (fs ::: {Unit}) (x : $(mapUT int fs)) =
    foldUR [int] [fn _ => int]
    (fn (nm :: Name) (rest :: {Unit}) [[nm] ~ rest] n acc => n + acc)
    0 [fs] x

fun main () = return <xml><body>
  {[sum {}]}<br/>
  {[sum {A = 0, B = 1}]}<br/>
  {[sum {C = 2, D = 3, E = 4}]}
</body></xml>