You don't have to wait until Ruby 2.0 to get (named|keyword) arguments support. Arguments has been tested with Ruby 1.8.6 and ruby 1.9.1 and eventually will work with JRuby (if someone is interested in contributing, I guess is possible since merb-action-args works with JRuby)

A ruby interface for dvd-slideshow utility (http://dvd-slideshow.sourceforge.net)

Reactive is a desktop application framework that gives everything needed to create database-backed applications according to the Model-View-Control pattern of separation. Reactive is highly inspired and also uses code of Rails, the famous Web-Framework for ruby. In Reactive, the model is handle...

This is a view provider for Reactive, the desktop application framework, it provides views based on the wxWidgets library. For this the ruby port wxRuby is used.

Reconsidered adds a vital and sorely missed language feature to Ruby: the well known and widely loved GO TO operation.

record - named tuples / records with typed structs / schemas

Search on a text file using binary search

An interface library to use the Amazon E-Commerce Service 4.0 (ECS4.0) API on Ruby.

Recurring allows you to define Schedules, which can tell you whether or not a given Time falls in the Schedule, as well as being able to return a list of times which match the Schedule within a given range.

Recursive Rake Tasks meant for generating rake tasks for all directories which contains *_spec files Under given directory.

Red writes like Ruby and runs like JavaScript.

Client library for the Redmine Ticket Server

This library is intended to provide a reducer library on collections for ruby like the clojure reducers

A multi-line search and replace utility that uses Ruby regular expressions for searching and allows back references to captured groups from the pattern to appear in the replacement text.

Celerity is a JRuby wrapper around HtmlUnit – a headless Java browser with JavaScript support. It provides a simple API for programmatic navigation through web applications. Celerity aims at being API compatible with Watir.

Reittiopas is a Ruby library for accessing the [Reittiopas Developer API](http://developer.reittiopas.fi/pages/fi/reittiopas-api.php). Requires an account to the service that can be requested through [the account request page](http://developer.reittiopas.fi/pages/fi/accountrequest.php).

Rejuicer.

The relative library enhances Ruby's core and standard libraries to support naming, opening, and reading files relative to the Ruby file currently being interpreted (the contents of the __ FILE __ identifier). This functionality is especially useful in embedded Ruby (eruby, erb, erubis, etc.) whe...

It's metastable

Provides single sign on for web applications using the CAS protocol.