module Okumanen

# File lib/okumanen.rb, line 6
def self.target?(str)
  !str.match(/[億万円]+/).nil?
end

# File lib/okumanen.rb, line 10
def self.to_i(str)
  str   = str.gsub(/,/, "")
  value = ""
  next_value = ""
  [/([\d\.]+)億(円)?/, /([\d\.]+)万(円)?/, /(\d+)円/].each do|r|
    m = str.match(r)
    if m.nil?
      while next_value.size < 4
        next_value += "0"
      end
      value += sprintf("%0.4d", next_value.to_i)
      next_value = ""
    else
      if m[1].include?(".") 
        next_value = m[1].split(".").last
      end
      value += sprintf("%0.4d", m[1].to_i)
    end
  end
  value.to_i
end