algesten

# Goals
#
# 1. Mix promise and non-promise arguments 
# 2. Behaves like a normal function if all arguments are non-promise
# 3. Returns a promise if any non-promise argument
# 4. Use no promise library, rely on the fact that:
#      promise.then(-> a1).then((a2) -> a1 === a2)
#      promise.then(-> Promise(a1)).then((a2) -> a1 === a2)
#

algesten

alphabet = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789".split("")
base = alphabet.length

exports.encode = (i) ->
  return alphabet[0] if i is 0
  s = ""
  while i > 0
    s += alphabet[i % base]
    i = parseInt(i / base, 10)