eyestep.org

Examples

The inevitable hello world:

def app|main()
  outln("hello world")

Compute fibonacci numbers:

def fib(n)
  if (n < 2)
    1
  else
    fib(n - 1) + fib(n - 2)

def app|main()
  let n = 28
  outln("Fib(%d): %d" % #[n, fib(n)])

99 bottles of beer:

module beer99
import "io/io.h"

def bottles(n : Int)
  for (i in n .. 0 by -1) {
    let number-str = select (i) {
                       | 0 -> "No more bottles"
                       | 1 -> "One bottle"
                       | else "%d bottles" % i
                     }
    outln("%s of beer on the wall" % number-str)
    outln("%s of beer" % number-str)
    outln("Take one down, pass it around")
    outln("%s of beer on the wall" % number-str)
    outln()
  }

def app|main()
  bottles(99)