This Ruby extension implements a DataMatrix encoder for Ruby. It is typically used to create semacodes, which are barcodes, that contain URLs. This encoder does not create image files or visual representations of the semacode. This is because it can be used for more than creating images, such as rendering semacodes to HTML, SVG, PDF or even stored in a database or file for later use.

Provides a Ruby interface for aggregating partial order expressions into a partial order with minimal Kemeny-Young distance

DCase is a lightweight dns proxy which can help you get through firewalls.

This gem adds the `decode_www_form_component` method to .

delta_test analyzes your tests and runs only related tests for your file changes

The dep_walker is small utility gem that checks dependencies for native extensions used by installed gems on Windows. If you are {RubyInstaller}[http://www.rubyinstaller.org] user and have seen message box: <em>"This application has failed to start because <name_of_dll>.dll was not found. Re-installing the application may fix this problem"</em> when you tried to use gem that has pre-built binariy extension, you've faced common problem on Windows systems - missing dependency dll. Same error might occur even if extension library was built during gem installation if all header files and libraries are available to the build tools, but runtime dependencies are not present. With dep_walker you can simply check all installed gems. Even more, if log is turned on, gem will print out information where dependency is found on the system, so you can check whether Ruby extension really uses correct version of required dll.

A Deque is a queue type data structure that allows efficient insertion and deletion from both ends of the queue. This implementation wrapps the standard C++ structure of the same name.

An implementation of the Diffie Hellman key exchange protocol

Ruby C extension to access temperature and humidity reading taken by the DHT-XX type sensors, see (http://www.adafruit.com/products/385)

The Diff Match and Patch libraries offer robust algorithms to perform the operations required for synchronizing plain text.

DiffSet contains a collection of data structures optimized to perform partial set subtractions

Ruby native extension for base32 encoding and decoding.

BLAKE2b is a cryptographic hash function faster than MD5, SHA-1, SHA-2, and SHA-3 for 64-bit systems.

With marshalling of digest objects, it is possible to compute the digests over several executions by storing the marshalled object on file or database, this is handy for computing digests for large files that comes in parts.

A KangarooTwelve library that utilizes the XKCP package and can be optionally optimized during compile-time based on a target. It produces implementation classes that work on top of Digest::Base and conform with how Digest classes work.

Digest::SipHash is a class of message digest use algorithm SipHash.

Digest::StringBuffer is a class that subset of Digest::Instance.

Native implementation of Dijkstra algorithm for finding the shortest path between two vertices in a large, sparse graphs. Underlying algorithm is implemented in C using a priority queue. Edges are represented using linked lists rather than an adjacency matrix to reduce memory footprint when operating on very large graphs where the average number of edges between nodes is relatively small (e.g. < 1/10 the number of nodes). See https://en.wikipedia.org/wiki/Dijkstra's_algorithm for additional information.

To calculate the directory size

Efficient test generation strategies