english_number.rb

def englishNumber number
  if number < 0
    return 'Please enter a number that isn\'t negative'
  end
  if number == 0
    return 'zero'
  end

  numString = ''

  onesPlace = ['one', 'two', 'three', 'four', 'five', 'six', 'seven', 'eight', 'nine']
  tensPlace = ['ten','twenty','thirty','forty','fifty', 'sixty','seventy','eighty','ninety']
  teenagers = ['eleven', 'twelve','thirteen', 'fourteen', 'fifteen','sixteen', 'seventeen', 'eighteen', 'nineteen']
  left = number

  # thousands
  write = left/1000
  left = left - write*1000

  if write > 0
  thousands = englishNumber write
  numString = numString + thousands + ' thousand,'

    if left > 0
      numString = numString + ' '
    end
  end

  write = left/100
  left = left -write*100

  puts 'left ' + left.to_s
  if write > 0
    hundreds = englishNumber write
    numString = numString + hundreds + ' hundred and'

    if left > 0
      numString = numString + ' '
    end
  end

  write = left/10
  left = left - write*10

  if write > 0
    if ((write == 1) and (left > 0))   # Uh-oh...
        # Since we can't write "tenty-two" instead of "twelve",
        # we have to make a special exception for these.
        numString = numString + teenagers[left-1]
        left = 0
    else
      numString = numString + tensPlace[write-1]
    end
    if left > 0
      numString = numString + '-'
    end
  end

  write = left
  left = 0
  if write > 0
    numString = numString+onesPlace[write-1]
  end
  numString
end
puts englishNumber(26)
puts englishNumber(826)
puts englishNumber(4826)