The Ruby Programming Language

CGI is a large class, providing several categories of methods, many of which are mixed in from other modules.

An easy to use but powerful templating system for Ruby

RDoc produces HTML and online documentation for Ruby projects.

Net::HTTP provides a rich library which can be used to build HTTP user-agents.

Provides lexical scanning operations on a String.

The compatible library with the API of Ruby's stdlib 'readline'

interactive Ruby

Empowering everyone to build reliable and efficient software.

Nokogiri (鋸) makes it easy and painless to work with XML and HTML from Ruby.

CSV Reading and Writing

Support for encoding and decoding binary data using a Base64 representation

A make-like build utility for Ruby.

JSON implementation for Ruby

There was no free Dictionary API on the web when I wanted one for my friend, so I created one.

Arbitrary-precision decimal floating-point number library for Ruby

Yet Another Ruby Parser

Pseudo `IO` class from/to `String`.

This class implements a pretty printing algorithm.

PStore implements a file based persistence mechanism based on a Hash.

simple logging utility

Library packaging and distribution for Ruby.

A subclass of Object includes Comparable module for handling dates.

OptionParser is a class for command-line option analysis.

Several file utility methods for copying, moving, removing, etc.