BibTeX-Ruby is the Rubyist's Swiss Army knife for all things BibTeX. It includes a parser for all common BibTeX objects and a sophisticated name parser that tokenizes correctly formatted names. BibTeX-Ruby recognizes BibTeX string replacements, joins values containing multiple strings or variables, supports cross-references, and decodes common LaTeX formatting instructions to unicode. If you are in a hurry, it also allows for easy export/conversion to formats such as YAML, JSON, CSL, and XML (BibTeXML).

Terminal Table is a fast and simple, yet feature rich table generator written in Ruby. It supports ASCII and Unicode formatted tables.

The Polyglot library allows a Ruby module to register a loader for the file type associated with a filename extension, and it augments require to find and load matching files.

Dalli is a high performance pure Ruby client for accessing memcached servers. Dalli supports:

• Simple and complex memcached configurations

• Fail-over between memcached instances

• Fine-grained control of data serialization and compression

• Thread-safe operation

• SSL/TLS connections to memcached

• SASL authentication.

The name is a variant of Salvador Dali for his famous painting The Persistence of Memory.

Multihashes provides a simple, low-level multihash implementation for Ruby. A multihash is a digest with an embedded hash function code

Asciidoctor is a text processor and publishing toolchain for converting AsciiDoc content to HTML5, DocBook 5, PDF, and other formats.

TomParse is a TomDoc parser for Ruby. It takes a code comment as input and parses it into a convenient object-oriented structure in accordance with the TomDoc standard. See TomDoc for more information about the TomDoc format.

This package provides a few useful extensions to core Ruby classes, including Array, Enumerable, Hash, Numeric, and String.

skiptrace provides a way to access the bindings that relate to exceptions in Ruby, providing more information about the context in which the exception occurred.

This package provides a generic object traverser for Ruby. It takes the object and recursively yields:

• the given object

• instance variables, class variables, constants

• Hash keys and values

• Enumerable members

• Struct members

• Data members

• Range begins and ends

Prawn::Icon provides various icon fonts including FontAwesome, PaymentFont and Foundation Icons for use with the Prawn PDF toolkit.

Lemon is a unit testing framework that enforces highly formal case-to-class and unit-to-method test construction. This enforcement can help focus concern on individual units of behavior.

This package provides a Ruby library to handle the WebSocket protocol.

Erubi is a ERB template engine for Ruby. It is a simplified fork of Erubis

This package provides a class-level mixin to make managing fiber-local state easy. It provides easy access to a fiber-local state from a fiber, and defaults to a shared thread-local state.

This package provides a class to deal with collections of unordered, unique values

Maruku is a Markdown interpreter in Ruby. It can export Markdown to HTML, and PDF through LaTeX.

Ruby-terminfo provides terminfo binding for Ruby.

This library provides methods to encode and decode Ascii85 binary-to-text encoding. The main modern use of Ascii85 is in PostScript and Portable Document Format (PDF) file formats.

This library provides functionality to send Internet mail via SMTP, the Simple Mail Transfer Protocol. The SMTP protocol specification is known as RFC2821.

Pathutil tries to be a faster pure Ruby implementation of Pathname.

Dhall.rb is a Ruby implementation of the Dhall configuration language. Dhall is a memory safe and non-Turing-complete configuration language.

Psych is a YAML parser and emitter. Psych leverages libyaml for its YAML parsing and emitting capabilities. In addition to wrapping libyaml, Psych also knows how to serialize and de-serialize most Ruby objects to and from the YAML format.

VersionGem aims to provide introspection of a Version module based on a Version::VERSION constant string wile not interfering with gemspec parsing where the VERSION string is traditionally used.