Sha256: 4de85b6bdcc59dde2d163581043dda52e7e77080b0a2801ed3dbdcd831c6bb8b
Contents?: true
Size: 463 Bytes
Versions: 7
Compression:
Stored size: 463 Bytes
Contents
# frozen_string_literal: true
class SedolValidator < BaseValidator
REGEXP = /^([A-Z0-9]{6})(\d{1})$/
WEIGHTS = [
1, 3, 1, 7, 3, 9, 1
].freeze
private
def valid_attr?
valid_regexp? && valid_checksum?
end
def valid_checksum?
total = 0
digits = value.chars.map { |dgt| /[A-Z]/.match?(dgt) ? (dgt.ord - 55) : dgt.to_i }
digits.each_with_index { |dgt, idx| total += (WEIGHTS[idx] * dgt) }
(10 - (total % 10)) % 10
end
end
Version data entries
7 entries across 7 versions & 1 rubygems