Module: ValidatesCpfCnpj::Cnpj

Defined in:
lib/validates_cpf_cnpj/cnpj.rb

Class Method Summary collapse

Class Method Details

.valid?(value) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/validates_cpf_cnpj/cnpj.rb', line 3

def self.valid?(value)
  value.gsub!(/[^0-9]/, '')
  digit = value.slice(-2, 2)
  control = ''
  if value.size == 14
    factor = 0
    2.times do |i|
      sum = 0;
      12.times do |j|
        sum += value.slice(j, 1).to_i * ((11 + i - j) % 8 + 2)
      end
      sum += factor * 2 if i == 1
      factor = 11 - sum  % 11
      factor = 0 if factor > 9
      control << factor.to_s
    end
  end
  control == digit
end