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@authorNari

authorNari/en.rb

Created Jun 2, 2012
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English Numerals by @Nari3 , @Watson1978 #minatork01
require_relative "ex_numeric"
puts ARGV.shift.to_i.to_english
class Numeric
def to_english
return NumToEnglish.new.convert(self)
end
end
class NumToEnglish
def initialize
@num_to_english = []
build_num_to_english
end
def convert(num)
@num_to_english[num]
end
private
def build_num_to_english
build_0_to_19
build_20_to_99
build_100_to_9999
end
def build_0_to_19
zero_to_nineteen = %W(zero one two three four five six
seven eight nine ten eleven twelve thirteen
fourteen fifteen sixteen seventeen eighteen nineteen)
@num_to_english.concat(zero_to_nineteen)
end
def build_20_to_99
twenty_to_ninety = %W(twenty thirty forty fifty sixty seventy eighty ninety)
res = twenty_to_ninety.each_with_object([]) do |i, r|
r << "#{i}"
(1..9).each do |j|
r << "#{i} #{@num_to_english[j]}"
end
end
@num_to_english.concat(res)
end
def build_100_to_9999
(100..9999).map{|i| [(i / 100), (i % 100)] }.each do |i, j|
if j == 0
if (i % 10) == 0
@num_to_english << @num_to_english[i] + " thousand"
else
@num_to_english << @num_to_english[i] + " houndred"
end
next
end
if (i % 10) == 0
@num_to_english << @num_to_english[i] + " thousand and " + @num_to_english[j]
else
@num_to_english << @num_to_english[i] + " houndred and " + @num_to_english[j]
end
end
end
end
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