Discount is an implementation of John Gruber's Markdown markup language in C. It implements all of the language described in the markdown syntax document and passes the Markdown 1.0 test suite.

Method_source retrieves the source code for Ruby methods. Additionally, it can extract source code from Proc and Lambda objects or just extract comments.

Bio-logger is a wrapper around Log4r adding extra logging features such as filtering and fine grained logging.

The Listen gem listens to file modifications and notifies you about the changes.

The ruby_parser (RP) package provides a Ruby parser written in pure Ruby. It outputs S-expressions which can be manipulated and converted back to Ruby via the ruby2ruby library.

Rubygems-task provides Rake tasks for managing and releasing Ruby Gems.

This library provides functions to calculate the differences between two tree-like structures. It is similar to Ruby's built-in TSort module.

EDTF-Ruby provides a parser and an API for the EDTF standard, implemented as an extension to Ruby's Date class.

Spy is a mocking library. By default, it will raise an error if you attempt to stub a method that doesn't exist or call the stubbed method with the wrong arity.

Rack middleware that can be used to protect against typical web attacks. It can protect all Rack apps, including Rails. For instance, it protects against cross site request forgery, cross site scripting, clickjacking, directory traversal, session hijacking and IP spoofing.

This package provides a Ruby wrapper for the OAuth 2.0 protocol built with a similar style to the original OAuth spec.

Creole is a lightweight markup language and this library for converting creole to HTML.

RR is a test double framework that features a rich selection of double techniques and a terse syntax.

YARD is a documentation generation tool for the Ruby programming language. It enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily, and also supports extending for custom Ruby constructs such as custom class level definitions.

Orderedhash is a Ruby library providing a hash implementation that preserves the order of items and features some array-like extensions.

Niceogiri provides wrappers and helpers for XML manipulation using Nokogiri.

This package provides localhost, a Ruby library for Managing a local certificate authority for self-signed, localhost development servers.

Zeitwerk implements constant autoloading with Ruby semantics. Each gem and application may have their own independent autoloader, with its own configuration, inflector, and logger. Supports autoloading, reloading, and eager loading.

CI::Reporter is an add-on to Ruby testing frameworks that allows you to generate XML reports of your test runs. The resulting files can be read by a continuous integration system that understands Ant's JUnit report format.

VersionGem aims to provide introspection of a Version module based on a Version::VERSION constant string wile not interfering with gemspec parsing where the VERSION string is traditionally used.

Open4 is a Ruby library to run child processes and manage their input and output.

This package adds step-by-step debugging and stack navigation capabilities to pry, using byebug.

This package provides a generic object traverser for Ruby. It takes the object and recursively yields:

• the given object

• instance variables, class variables, constants

• Hash keys and values

• Enumerable members

• Struct members

• Data members

• Range begins and ends

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality. The protocol is described in IMAP.