Method: Datte::Dattetime#after

Defined in:
lib/datte/dattetime.rb

#after(md) ⇒ Object

何年後、何ヶ月後、何日後, 何時間後, 何分後



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# File 'lib/datte/dattetime.rb', line 37

def after(md)
  if md.matched?(:year)
    @year, @month, @day = now[:year] + md[:year].to_i, now[:month], now[:day]
  end
  if md.matched?(:month)
    carry = (now[:month] + md[:month].to_i) / 12
    @year, @month, @day = now[:year] + carry, now[:month] + md[:month].to_i , now[:day]
  end
  if md.matched?(:day)
    days = [31,28,31,30,31,30,31,31,30,31,30,31][now[:month] - 1]
    carry = (now[:day] + md[:day].to_i) / days
    @year, @month, @day = now[:year], now[:month] + carry, now[:day] + md[:day].to_i - carry * days
  end
  if md.matched?(:hour)
    carry = (now[:hour] + md[:hour].to_i) / 24
    @day, @hour = now[:day] + carry, now[:hour] + md[:hour].to_i - carry * 24, now[:min]
  end
  # @date >> (md[:year].to_i * 12) if md.matched?(:year) # 何年後
  # @date >> md[:month].to_i if md.matched?(:month) # 何ヶ月後
  # @date + md[:day].to_i if md.matched?(:day) # 何日後
  # @date + Rational(md[:hour].to_i, 24) if md.matched?(:hour) # 何時間後
  # @date + Rational(md[:hour].to_i, 24 * 60) if md.matched?(:hour) # 何分後
end