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Provides a common utility for weighted randomization

A JRuby wrapper for the Weka library (http://www.cs.waikato.ac.nz/ml/weka/)

Rails gem that interfaces with the WePay API

Ruby API wrapper for wechat work「企业微信」

Use arel predicates directly from where.

Wikitext is a fast wikitext-to-HTML translator written in C.

The win32-eventlog library provides an interface to the MS Windows event log. Event logging provides a standard, centralized way for applications (and the operating system) to record important software and hardware events. The event-logging service stores events from various sources in a single collection called an event log. This library allows you to inspect existing logs as well as create new ones.

The win32-security library provides an interface for dealing with security related aspects of MS Windows, such as SID's, ACL's and ACE's.

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.

Async publishing for Wisper using Resque

Create, collaborate and publish ebooks easily.

Lets you use the Workflow gem with your Mongoid documents to add state machine functionality.

Migrate a Wordpress export XML file to Middleman-style markdown files

A read-only client for the WordPress REST API (v2).

You can manage Your Wunderlist Data with Ruby

A wysiwyg text editor for Rails assets pipeline

A library to provide a more Ruby-like interface to the Xapian search engine.

XcodeProject is the Ruby API for working with Xcode project files

Ruby interface for Xvfb. It allows you to create a headless display straight from Ruby code, hiding some low-level action.