Ruby Programming - Second Edition

From the Author

Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks.Where those designations appear in this book, and The Pragmatic Programmers, LLC, was aware of a trademark claim, the designations have been printed in initial capital letters or in all capitals.

Every precaution was taken in the preparation of this book. However, the publisher assumes no responsibility for errors or omissions or for damages that may result from the use of information (including program listings) contained hieren.... This book is a heavily revised version of the book Programming Ruby, originally published by Addison Wesley. This book is printed with their permission.