# frozen_string_literal: false

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begin

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require 'psych'

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rescue LoadError

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warn "It seems your ruby installation is missing psych (for YAML output).\n" \

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"To eliminate this warning, please install libyaml and reinstall your ruby.\n",

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uplevel: 1

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raise

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end

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YAML = Psych # :nodoc:

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# YAML Ain't Markup Language

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#

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# This module provides a Ruby interface for data serialization in YAML format.

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#

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# The YAML module is an alias of Psych, the YAML engine for Ruby.

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#

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# == Usage

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#

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# Working with YAML can be very simple, for example:

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#

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# require 'yaml'

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# # Parse a YAML string

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# YAML.load("--- foo") #=> "foo"

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#

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# # Emit some YAML

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# YAML.dump("foo") # => "--- foo\n...\n"

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# { :a => 'b'}.to_yaml # => "---\n:a: b\n"

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#

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# As the implementation is provided by the Psych library, detailed documentation

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# can be found in that library's docs (also part of standard library).

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#

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# == Security

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#

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# Do not use YAML to load untrusted data. Doing so is unsafe and could allow

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# malicious input to execute arbitrary code inside your application. Please see

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# doc/security.rdoc for more information.

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#

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# == History

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#

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# Syck was the original YAML implementation in Ruby's standard library

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# developed by why the lucky stiff.

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#

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# You can still use Syck, if you prefer, for parsing and emitting YAML, but you

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# must install the 'syck' gem now in order to use it.

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#

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# In older Ruby versions, ie. <= 1.9, Syck is still provided, however it was

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# completely removed with the release of Ruby 2.0.0.

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#

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# == More info

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#

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# For more advanced details on the implementation see Psych, and also check out

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# http://yaml.org for spec details and other helpful information.

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#

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# Psych is maintained by Aaron Patterson on github: https://github.com/ruby/psych

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#

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# Syck can also be found on github: https://github.com/ruby/syck

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module YAML

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end

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