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thb/siren2tva.rb

Created July 18, 2020 22:34
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siren2tva.rb
#!/usr/bin/ruby
# frozen_string_literal: true
# prendre les 9 premiers chiffres, exception si plus ou moins que 9 chiffres
SIREN = ARGV[0]
# calculer la clé
key = (12 + 3 * (SIREN.to_i % 97)) % 97
# concaténer et prévixer de "FR" pour la france
tva = "FR#{key}#{SIREN}"
puts tva
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