ONIX for Books is the international standard for representing and communicating book industry product information in electronic form. It consists of an XML DTD and schema.

This ONIX library provides a thin wrapper to the ONIX for Books XML standard. It simplifies both the reading and writing of ONIX files in your Ruby applications.

This library supports ONIX 2.1 files only (all revisions).

ONIX::Reader only handles the reference tag versions of ONIX 2.1. Use ONIX::Normaliser to convert any short tag files to reference tags.

ONIX::Writer only generates reference tag ONIX files.

To correctly interpret named entities when reading an ONIX 2.1 file, your system XML catalog must include the ONIX DTD. For more information, consult the instructions at http://github.com/yob/onix-dtd

gem install onix

See files in the examples directory to get started quickly. For further reading view the comments to the following classes:

• ONIX::Reader - For reading ONIX files
• ONIX::Writer - For writing ONIX files
• ONIX::Normaliser - For normalising ONIX files before reading them. Fixes encoding issues, etc
• ONIX::Lists - For building hashes of code lists from the ONIX spec

This library is distributed under the terms of the MIT License. See the included file for more detail.

If you find a bug or would like to contribute functionality, please create an issue on GitHub or fork the project and send a pull request.

This code is derived from the work of James Healy and Joseph Pearson