ScottKit is a toolkit for compiling, decompiling and playing adventure games in the Scott Adams format.

A Shogi library by pure Ruby. It supports CSA format.

Auto-instrumentation framework for Ruby

JSONP output helper for Sinatra

Basic Pulp support for Foreman Smart-Proxy

SocialPoster is a gem that allows you easily post to different social networks.

Splunk SDK for Ruby

A Ruby wrapper for the Dribbble API

Hash wrapper.

tb is a manipulation tool for tables. tb provides a command and a library for manipulating tables: Unix filter like operations (sort, cat, cut, ls, etc.), SQL like operations (join, group, etc.), other table operations (search, gsub, rename, cross, melt, unmelt, etc.), information extractions (git, svn, tar), and more. tb supports various table formats: CSV, TSV, JSON, NDJSON, LTSV, etc.

test-unit-capybara is a Capybara adapter for test-unit 2. You can get [Capybara](https://rubygems.org/gems/capybara) integrated Test::Unit::TestCase. It also provides useful assertions for Capybara.

Rails supports Minitest but doesn't support test-unit.

Port of UEA-Lite Stemmer to Ruby, a conservative stemmer for search and indexing.

Ruby client for the Web Application Description Language.

The win32-taskscheduler library provides an interface to the MS Windows Task Scheduler. With this interface you can create new scheduled tasks, configure existing tasks, or delete tasks.

The windows-api library provides features over and above the basic interface provided by the win32-api library. Features included automatic constant generation, automatic defintion of ANSI and Unicode methods, special handling of functions that return a boolean value, and the ability to use native Windows type declarations.

XDo is a library to automate your mouse, fake keyboard input and manipulate windows in a Linux X server environment. It's wrapped around a lot of command line tools (see requirements) of which xdotool is the main one, the others are usually installed. It's designed to work only with Ruby 1.9.

Yadriggy builds the abstract syntax tree (AST) of a method, checks its syntax and types, and runs it. When checking the syntax and types, it is treated as the code written in a domain specific language (DSL). It also provide simple DSLs for computation offloading from Ruby to C, Python, etc.

A Railtie that provides an asset management system for css, javascript, and sprites in your Rails applications and engines. ActiveAssets includes two libraries, ActiveExpansions and ActiveSprites. ActiveSprites generates sprites defined by a dsl similar to a route definition. Similarly, ActiveExpansions' dsl creates ActionView::Helpers::AssetTagHelper javascript and stylesheet expansions, and adds additional features

Use this gem instead of ActiveMerchant gem if you want to use Square's e-commerce APIs (https://squareup.com/developers) with ActiveMerchant. The official ActiveMerchant gem does not support Square because Square shields raw credit card numbers from developers to make PCI compliance easier. This has all ActiveMerchant functionality, plus support of Square's card nonces in the iframe API.