A small class for generating and validating EAN-13's, the 13 digit codes found on many products sold around the world.

Installation

gem install ean13

Usage

EAN13.new("0632737715836").valid?
=> true

EAN13.valid?("0632737715836")
=> true

EAN13.valid?("0632737715837")
=> false

EAN13.complete("063273771583")
=> "0632737715836"

EAN13.new("0632737715836").to_upc
=> "632737715836"

EAN13.new("0632737715836").to_gtin
=> "00632737715836"

Further Reading

• http://en.wikipedia.org/wiki/European_Article_Number

Contributing

Source code is publicly available @ http://github.com/yob/ean13. Patches welcome, preferably via a git repo I can pull from.