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ramoncaldeira/numbers_as_words.rb

Last active August 29, 2015 14:11
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numbers_as_words.rb
UNITS = Hash[(1..9).zip %w(um dois tres quatro cinco seis sete oito nove)]
SPECIAL = Hash[(11..19).zip %w(onze doze treze quatorze quinze dezesseis dezessete dezoito dezenove)]
DOZENS = Hash[(1..9).zip %w(dez vinte trinta quarenta cinquenta sessenta setenta oitenta noventa)]
def to_words(number)
return SPECIAL[number] if number.between?(11, 19)
dozens, units = number.divmod(10)
[DOZENS[dozens], UNITS[units]].compact.join(' e ')
end
# main program
(1..99).each do |n|
puts to_words(n)
end
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