index.py

# pythonw ./index.py

# clear terminal !!! Cool
# print("\033[H\033[J")


CRED = '\033[91m'
CEND = '\033[0m'

def logError(msg, info):
	print CRED
	print("[ERROR] " + msg + " :")
	print("   got: " + str(info) + "\n")
	print CEND

def compose(*args):
	length = len(args)
	def _composeInner(lastResult, index):
		if ((length - 1) < index):
			return lastResult
		return _composeInner(args[index](lastResult), index + 1)

	return (lambda x: _composeInner(x, 0))


def filter(arr, fn):
	resultArray = []
	for element in arr:
		if (fn(element)):
			resultArray.append(
				fn(element)
			)

	return resultArray

def reduce(arr, fn, startInput):
	def _reduceInner(arr, fn, acc, i):
		if (i == len(arr)):
			return acc

		newAcc = fn(acc, arr[i])
		return _reduceInner(arr, fn, newAcc, (i + 1))

	return _reduceInner(arr, fn, startInput, 0)

def map(arr, fn):
	resultArray = []
	for element in arr:
		resultArray.append(
			fn(element)
		)

	return resultArray