def get_cardinal_name(num):
"""Get cardinal name for number (0 to 1 million)"""
numbers = {
0: "zero", 1: "one", 2: "two", 3: "three", 4: "four", 5: "five",
6: "six", 7: "seven", 8: "eight", 9: "nine", 10: "ten",
11: "eleven", 12: "twelve", 13: "thirteen", 14: "fourteen",
15: "fifteen", 16: "sixteen", 17: "seventeen", 18: "eighteen",
19: "nineteen", 20: "twenty", 30: "thirty", 40: "forty",
50: "fifty", 60: "sixty", 70: "seventy", 80: "eighty", 90: "ninety",
}
def _get_tens(n):
a, b = divmod(n, 10)
return (numbers[n] if (n in numbers) else "%s-%s" % (numbers[10*a], numbers[b]))
def _get_hundreds(n):
tens = n % 100
hundreds = (n / 100) % 10
return list(compact([
hundreds > 0 and numbers[hundreds],
hundreds > 0 and "hundred",
hundreds > 0 and tens and "and",
(not hundreds or tens > 0) and _get_tens(tens),
]))
# This needs some refactoring
if not (0 <= num < 1e6):
raise ValueError, "value not supported: %s" % num
thousands = (num / 1000) % 1000
strings = compact([
thousands and (_get_hundreds(thousands) + ["thousand"]),
(num % 1000 or not thousands) and _get_hundreds(num % 1000),
])
return " ".join(flatten(strings))
def _get_hundreds(n):
tens = n % 100
hundreds = (n / 100) % 10
return list(compact([
hundreds > 0 and numbers[hundreds],
hundreds > 0 and "hundred",
hundreds > 0 and tens and "and",
(not hundreds or tens > 0) and _get_tens(tens),
]))