This gem provides few libraries, which are Mapping and Categorize.

MaskSQL is a command-line tool to mask sensitive values in a SQL file

Filter and rename multiple files in a directory or subdirectories with regular expressions.

Core component of Mastercard Ruby SDKs

Library for Mastercard API compliant payload encryption/decryption.

Mastercard Core API SDK.

Zero dependency library for generating a Mastercard API compliant OAuth signature

システムが稼働する上で最初から必要なデータ（マスタデータ）を管理するツールです。

Mastermind_Oscar is a Ruby implementation of the classic board game of same name. The game is a code breaking game between two players; in this implementation, it is between a player and the computer.

implements String#match_at

A Fix specing matcher compatible with Matchi.

Matchi extension gem to provide some RSpec matchers.

High speed data aggregator and reducer algorithm based on key-value exact matching and grouping.

A cute Stable Match implementation

An extensible and lightweight object which defines how your objects are viewed.

Utilities to materialize routemaster topics

Provides associations autocomplete using rails-materialize

Persist serialization in the model.

Translate MathML to LaTeX

A ruby MVC framework implented using rack.