Programming

Pry is a runtime developer console and IRB alternative with powerful introspection capabilities. Pry aims to be more than an IRB replacement. It is an attempt to bring REPL driven programming to the Ruby language.

EventMachine implements a fast, single-threaded engine for arbitrary network communications. It's extremely easy to use in Ruby. EventMachine wraps all interactions with IP sockets, allowing programs to concentrate on the implementation of network protocols. It can be used to create both network servers and clients. To create a server or client, a Ruby program only needs to specify the IP address and port, and provide a Module that implements the communications protocol. Implementations of several standard network protocols are provided with the package, primarily to serve as examples. The real goal of EventMachine is to enable programs to easily interface with other programs using TCP/IP, especially if custom protocols are required.

Rake is a Make-like program implemented in Ruby. Tasks and dependencies are specified in standard Ruby syntax. Rake has the following features: * Rakefiles (rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?) * Users can specify tasks with prerequisites. * Rake supports rule patterns to synthesize implicit tasks. * Flexible FileLists that act like arrays but know about manipulating file names and paths. * Supports parallel execution of tasks.

Gettext is a GNU gettext-like program for Ruby. The catalog file(po-file) is same format with GNU gettext. So you can use GNU gettext tools for maintaining.

YARD is a documentation generation tool for the Ruby programming language. It enables the user to generate consistent, usable documentation that can be exported to a number of formats very easily, and also supports extending for custom Ruby constructs such as custom class level definitions.

Net::SSH: a pure-Ruby implementation of the SSH2 client protocol. It allows you to write programs that invoke and interact with processes on remote servers, via SSH2.

Celluloid enables people to build concurrent programs out of concurrent objects just as easily as they build sequential programs out of sequential objects

Have you ever wanted to call <code>exit()</code> with an error condition, but weren't sure what exit status to use? No? Maybe it's just me, then. Anyway, I was reading manpages late one evening before retiring to bed in my palatial estate in rural Oregon, and I stumbled across <code>sysexits(3)</code>. Much to my chagrin, I couldn't find a +sysexits+ for Ruby! Well, for the other 2 people that actually care about <code>style(9)</code> as it applies to Ruby code, now there is one! Sysexits is a *completely* *awesome* collection of human-readable constants for the standard (BSDish) exit codes, used as arguments to +exit+ to indicate a specific error condition to the parent process. It's so fantastically fabulous that you'll want to fork it right away to avoid being thought of as that guy that's still using Webrick for his blog. I mean, <code>exit(1)</code> is so passé! This is like the 14-point font of Systems Programming. Like the C header file from which this was derived (I mean forked, naturally), error numbers begin at <code>Sysexits::EX__BASE</code> (which is way more cool than plain old +64+) to reduce the possibility of clashing with other exit statuses that other programs may already return. The codes are available in two forms: as constants which can be imported into your own namespace via <code>include Sysexits</code>, or as <code>Sysexits::STATUS_CODES</code>, a Hash keyed by Symbols derived from the constant names. Allow me to demonstrate. First, the old way: exit( 69 ) Whaaa...? Is that a euphemism? What's going on? See how unattractive and... well, 1970 that is? We're not changing vaccuum tubes here, people, we're <em>building a totally-awesome future in the Cloud™!</em> include Sysexits exit EX_UNAVAILABLE Okay, at least this is readable to people who have used <code>fork()</code> more than twice, but you could do so much better! include Sysexits exit :unavailable Holy Toledo! It's like we're writing Ruby, but our own made-up dialect in which variable++ is possible! Well, okay, it's not quite that cool. But it does look more Rubyish. And no monkeys were patched in the filming of this episode! All the simpletons still exiting with icky _numbers_ can still continue blithely along, none the wiser.

A package (also known as a library) contains a set of functionality that can be invoked by a Ruby program, such as reading and parsing an XML file. We call these packages 'gems' and RubyGems is a tool to install, create, manage and load these packages in your Ruby environment. RubyGems is also a client for RubyGems.org, a public repository of Gems that allows you to publish a Gem that can be shared and used by other developers. See our guide on publishing a Gem at guides.rubygems.org

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

Racc is an LALR(1) parser generator. It is written in Ruby itself, and generates Ruby program. NOTE: Ruby 1.8.x comes with Racc runtime module. You can run your parsers generated by racc 1.4.x out of the box.

**Logging** is a flexible logging library for use in Ruby programs based on the design of Java's log4j library. It features a hierarchical logging system, custom level names, multiple output destinations per log event, custom formatting, and more.

This gem aims at being a simple and reliable solution for controlling external programs running in the background on any Ruby / OS combination.

Launchy is helper class for launching cross-platform applications in a fire and forget manner. There are application concepts (browser, email client, etc) that are common across all platforms, and they may be launched differently on each platform. Launchy is here to make a common approach to launching external applications from within ruby programs.

test-unit (Test::Unit) is unit testing framework for Ruby, based on xUnit principles. These were originally designed by Kent Beck, creator of extreme programming software development methodology, for Smalltalk's SUnit. It allows writing tests, checking results and automated testing in Ruby.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This module allows Ruby programs to interface with the SQLite3 database engine (http://www.sqlite.org). You must have the SQLite engine installed in order to build this module. Note that this module is NOT compatible with SQLite 2.x.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

Flay analyzes code for structural similarities. Differences in literal values, variable, class, method names, whitespace, programming style, braces vs do/end, etc are all ignored. Making this totally rad.

DecentExposure helps you program to an interface, rather than an implementation in your Rails controllers. The fact of the matter is that sharing state via instance variables in controllers promotes close coupling with views. DecentExposure gives you a declarative manner of exposing an interface to the state that controllers contain and thereby decreasing coupling and improving your testability and overall design.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

Nokogumbo allows a Ruby program to invoke the Gumbo HTML5 parser and access the result as a Nokogiri parsed document.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

Facets is the premier collection of extension methods for the Ruby programming language. Facets extensions are unique by virtue of thier atomicity. They are stored in individual files allowing for highly granular control of requirements. In addition, Facets includes a few additional classes and mixins suitable to wide variety of applications.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

A collection of data structures and utilities to make thread-safe programming in Ruby easier

Cloud Translation can dynamically translate text between thousands of language pairs. Translation lets websites and programs programmatically integrate with the translation service.

The ANSI project is a superlative collection of ANSI escape code related libraries eabling ANSI colorization and stylization of console output. Byte for byte ANSI is the best ANSI code library available for the Ruby programming language.

Although made popular by Windows, INI files can be used on any system thanks to their flexibility. They allow a program to store configuration data, which can then be easily parsed and changed. Two notable systems that use the INI format are Samba and Trac. More information about INI files can be found on the [Wikipedia Page](http://en.wikipedia.org/wiki/INI_file). ### Properties The basic element contained in an INI file is the property. Every property has a name and a value, delimited by an equals sign *=*. The name appears to the left of the equals sign and the value to the right. name=value ### Sections Section declarations start with *[* and end with *]* as in `[section1]` and `[section2]` shown in the example below. The section declaration marks the beginning of a section. All properties after the section declaration will be associated with that section. ### Comments All lines beginning with a semicolon *;* or a number sign *#* are considered to be comments. Comment lines are ignored when parsing INI files. ### Example File Format A typical INI file might look like this: [section1] ; some comment on section1 var1 = foo var2 = doodle var3 = multiline values \ are also possible [section2] # another comment var1 = baz var2 = shoodle

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

prettier plugin for the Ruby programming language

A Ruby program to facilitate accessing Aliyun Object Storage Service

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This library provides the ability to create PDF documents using only native Ruby libraries. There are several demo programs available in the demo/ directory. The canonical documentation for PDF::Writer is "manual.pdf", which can be generated using bin/techbook (just "techbook" for RubyGem users) and the manual file "manual.pwd".

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

a class factory and dsl for generating command line programs real quick

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

Erector is a Builder-like view framework, inspired by Markaby but overcoming some of its flaws. In Erector all views are objects, not template files, which allows the full power of object-oriented programming (inheritance, modular decomposition, encapsulation) in views.

Cloud Translation can dynamically translate text between thousands of language pairs. Translation lets websites and programs programmatically integrate with the translation service.

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program