10 filesupdated Jun 18, 2026
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A small class for generating and validating Standard Address Numbers (SAN), a unique global identifier used in the book and publishing industries.
Installation
gem install san
Usage
SAN.new("9013725").valid?
=> true
SAN.valid?("9013725")
=> true
SAN.valid?("9013726")
=> false
SAN.complete("901372")
=> "9013725"