An extensive example of code

function ? (predicate result1 result2) {
 if predicate {
  ! result1
 } {
  ! result2
 }
}

function <= (value1 value2) {
 if [< value1 value2] { true } {
  = value1 value2
 }
}

function incr(x) {
 + x 1
}

function decr(x) {
 - x 1
}

/*
* inclusive range
*/
function .. (begin end) {
 set func [? [<= begin end] incr decr ]
 if [= begin end] {
  append () begin
 } {
  append [.. [func begin] end] begin
 }
}

/**
 *  iterates through a list and executes 
 *  the passed in block
 */

function foreach(list block) {
    if [not [empty? list]] {
        set item [head list]
        eval block
        foreach [rest list] block
    }
}

All of the above code is needed to prepare for the following

foreach [ .. 1 12] {
    println "hi! number " item
}