class Valvat::Checksum::CY
Public Instance Methods
check_digit()
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# File lib/valvat/checksum/cy.rb, line 6 def check_digit odd_position_digit_values = [1, 0, 5, 7, 9, 13, 15, 17, 19, 21] sum = sum_figures_by do |digit, index| (8 - index).odd? ? odd_position_digit_values[digit] : digit end ('a'..'z').to_a[sum % 26] end
given_check_digit()
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# File lib/valvat/checksum/cy.rb, line 16 def given_check_digit given_check_digit_str.downcase end