Jancode

Japanese Article Number

Installation

Add this line to your application's Gemfile:

gem 'jancode'

And then execute:

$ bundle

Or install it yourself as:

$ gem install jancode

Usage

Create japanese article number.

require "jancode"

gtin13 = Jancode.create("456995111617") # => #<Jancode::GTIN13:0x007fdb6314b950 @company_prefix="456995111", @item_code="618">
gtin13.create # => "4569951116186"

gtin8 = Jancode.create("4912345") # => #<Jancode::GTIN8:0x007fdb6126eaa0 @company_prefix="491234", @item_code="5">
gtin8.create # => "49123456"

Verification japanese article number.

require "jancode"

Jancode.verification? "4569951116186" # => true
Jancode.verification? "4569951116187" # => false

Jancode.verification? "49123456" # => true
Jancode.verification? "49123457" # => false

GTIN13

require "jancode"

# Jancode::GTIN13.new("GS1 Company Prefix", "Item Code")
jancode = Jancode::GTIN13.new("456995111", "617")
jancode.check_digit # => 9
jancode.create # => "4569951116179"

# jancode.company_prefix = "456995111"
jancode.item_code = "618"
jancode.create # => "4569951116186"

(1..10).each do |item_code|
  jancode.item_code = "%03d" % item_code
  puts jancode.create
end
# 4569951110016
# 4569951110023
# 4569951110030
# 4569951110047
# 4569951110054
# 4569951110061
# 4569951110078
# 4569951110085
# 4569951110092
# 4569951110108

GTIN8

require "jancode"

# Jancode::GTIN8.new("GS1 Company Prefix", "Item Code")
jancode = Jancode::GTIN8.new("491234", "5")
jancode.check_digit # => 6
jancode.create # => "49123456"

# jancode.company_prefix = "491234"
jancode.item_code = "6"
jancode.create # => "49123463"

(1..9).each do |item_code|
  jancode.item_code = item_code.to_s
  puts jancode.create
end
# 49123418
# 49123425
# 49123432
# 49123449
# 49123456
# 49123463
# 49123470
# 49123487
# 49123494

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request