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XML catalog for locally accessible ONIX 2.0 and 2.1 DTDs

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Cacofonix::DTDs

Cacofonix::DTDs provides an XML catalog for locally accessible ONIX 2.0 and 2.1 DTDs.

This is important in order to parse ONIX files correctly and reliably given that the original DTDs are no longer online.

This gem was published for use by Cacofonix, a complete ONIX mapping gem. Cacofonix will use these DTDs automatically, no extra configuration required.

You can also use it directly with Nokogiri or any other libxml-based system. For this, see the installation and usage instructions below.

Installation

Add this line to your application's Gemfile:

gem "cacofonix-dtds"

And then execute:

$ bundle

Or install it yourself as:

$ gem install cacofonix-dtds

Usage

To set the XML_CATALOG_FILES environment variable to the XML catalog file:

require "cacofonix/dtds"

Cacofonix::DTDs.apply_libxml_env!

# Do your nokogiri parsing here

If you want to clean up your environment afterwards:

require "cacofonix/dtds"

env_value = nil

Cacofonix::DTDs.apply_libxml_env! { |previous_value| env_value = previous_value }

# Do your nokogiri parsing here

ENV[Cacofonix::DTDs.libxml_env_key] = env_value

Contributing

Bug reports and pull requests are welcome on GitHub. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Cacofonix::DTDs codebase, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.

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XML catalog for locally accessible ONIX 2.0 and 2.1 DTDs

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