module BrDocuments::Commons::Mod11
Public Instance Methods
generate_check_digit(values, weights)
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# File lib/br_documents/commons/mod11.rb, line 4 def generate_check_digit(values, weights) sum = reduce_weights(values, weights) mod = sum % 11 mod < 2 ? 0 : (11 - mod) end
reduce_weights(values, weights)
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# File lib/br_documents/commons/mod11.rb, line 10 def reduce_weights(values, weights) sum = 0 weights.each_index do |i| sum += weights[i] * values[i].to_i end sum end