Psych

• https://github.com/ruby/psych

Description

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

Examples

# Safely load YAML in to a Ruby object
Psych.safe_load('--- foo') # => 'foo'

# Emit YAML from a Ruby object
Psych.dump("foo")     # => "--- foo\n...\n"

Dependencies

• libyaml

Installation

Psych has been included with MRI since 1.9.2, and is the default YAML parserin 1.9.3.

If you want a newer gem release of Psych, you can use rubygems:

gem install psych

In order to use the gem release in your app, and not the stdlib version,you'll need the following:

gem 'psych'
require 'psych'

Or if you use Bundler add this to your Gemfile:

gem 'psych'

JRuby ships with a pure Java implementation of Psych.

If you're on Rubinius, Psych is available in 1.9 mode, please refer to theLanguage Modes section of the RubiniusREADME for more information onbuilding and 1.9 mode.

License

Copyright 2009 Aaron Patterson, et al.

Permission is hereby granted, free of charge, to any person obtaining a copyof this software and associated documentation files (the 'Software'), to dealin the Software without restriction, including without limitation the rightsto use, copy, modify, merge, publish, distribute, sublicense, and/or sellcopies of the Software, and to permit persons to whom the Software isfurnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in allcopies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS ORIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THEAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHERLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THESOFTWARE.