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+$DEBUG_RDOC = nil
+
+# :main: README.rdoc
+
+##
+# RDoc produces documentation for Ruby source files by parsing the source and
+# extracting the definition for classes, modules, methods, includes and
+# requires.  It associates these with optional documentation contained in an
+# immediately preceding comment block then renders the result using an output
+# formatter.
+#
+# For a simple introduction to writing or generating documentation using RDoc
+# see the README.
+#
+# == Roadmap
+#
+# If you think you found a bug in RDoc see CONTRIBUTING@Bugs
+#
+# If you want to use RDoc to create documentation for your Ruby source files,
+# see RDoc::Markup and refer to <tt>rdoc --help</tt> for command line usage.
+#
+# If you want to set the default markup format see
+# RDoc::Markup@Supported+Formats
+#
+# If you want to store rdoc configuration in your gem (such as the default
+# markup format) see RDoc::Options@Saved+Options
+#
+# If you want to write documentation for Ruby files see RDoc::Parser::Ruby
+#
+# If you want to write documentation for extensions written in C see
+# RDoc::Parser::C
+#
+# If you want to generate documentation using <tt>rake</tt> see RDoc::Task.
+#
+# If you want to drive RDoc programmatically, see RDoc::RDoc.
+#
+# If you want to use the library to format text blocks into HTML or other
+# formats, look at RDoc::Markup.
+#
+# If you want to make an RDoc plugin such as a generator or directive handler
+# see RDoc::RDoc.
+#
+# If you want to write your own output generator see RDoc::Generator.
+#
+# If you want an overview of how RDoc works see CONTRIBUTING
+#
+# == Credits
+#
+# RDoc is currently being maintained by Eric Hodel <drbrain@segment7.net>.
+#
+# Dave Thomas <dave@pragmaticprogrammer.com> is the original author of RDoc.
+#
+# * The Ruby parser in rdoc/parse.rb is based heavily on the outstanding
+#   work of Keiju ISHITSUKA of Nippon Rational Inc, who produced the Ruby
+#   parser for irb and the rtags package.
+
+module RDoc
+
+  ##
+  # Exception thrown by any rdoc error.
+
+  class Error < RuntimeError; end
+
+  ##
+  # RDoc version you are using
+
+  VERSION = '4.2.0'
+
+  ##
+  # Method visibilities
+
+  VISIBILITIES = [:public, :protected, :private]
+
+  ##
+  # Name of the dotfile that contains the description of files to be processed
+  # in the current directory
+
+  DOT_DOC_FILENAME = ".document"
+
+  ##
+  # General RDoc modifiers
+
+  GENERAL_MODIFIERS = %w[nodoc].freeze
+
+  ##
+  # RDoc modifiers for classes
+
+  CLASS_MODIFIERS = GENERAL_MODIFIERS
+
+  ##
+  # RDoc modifiers for attributes
+
+  ATTR_MODIFIERS = GENERAL_MODIFIERS
+
+  ##
+  # RDoc modifiers for constants
+
+  CONSTANT_MODIFIERS = GENERAL_MODIFIERS
+
+  ##
+  # RDoc modifiers for methods
+
+  METHOD_MODIFIERS = GENERAL_MODIFIERS +
+    %w[arg args yield yields notnew not-new not_new doc]
+
+  ##
+  # Loads the best available YAML library.
+
+  def self.load_yaml
+    begin
+      gem 'psych'
+    rescue Gem::LoadError
+    end
+
+    begin
+      require 'psych'
+    rescue ::LoadError
+    ensure
+      require 'yaml'
+    end
+  end
+
+  autoload :RDoc,           'rdoc/rdoc'
+
+  autoload :TestCase,       'rdoc/test_case'
+
+  autoload :CrossReference, 'rdoc/cross_reference'
+  autoload :ERBIO,          'rdoc/erbio'
+  autoload :ERBPartial,     'rdoc/erb_partial'
+  autoload :Encoding,       'rdoc/encoding'
+  autoload :Generator,      'rdoc/generator'
+  autoload :Options,        'rdoc/options'
+  autoload :Parser,         'rdoc/parser'
+  autoload :Servlet,        'rdoc/servlet'
+  autoload :RI,             'rdoc/ri'
+  autoload :Stats,          'rdoc/stats'
+  autoload :Store,          'rdoc/store'
+  autoload :Task,           'rdoc/task'
+  autoload :Text,           'rdoc/text'
+
+  autoload :Markdown,       'rdoc/markdown'
+  autoload :Markup,         'rdoc/markup'
+  autoload :RD,             'rdoc/rd'
+  autoload :TomDoc,         'rdoc/tom_doc'
+
+  autoload :KNOWN_CLASSES,  'rdoc/known_classes'
+
+  autoload :RubyLex,        'rdoc/ruby_lex'
+  autoload :RubyToken,      'rdoc/ruby_token'
+  autoload :TokenStream,    'rdoc/token_stream'
+
+  autoload :Comment,        'rdoc/comment'
+
+  autoload :I18n,           'rdoc/i18n'
+
+  # code objects
+  #
+  # We represent the various high-level code constructs that appear in Ruby
+  # programs: classes, modules, methods, and so on.
+  autoload :CodeObject,     'rdoc/code_object'
+
+  autoload :Context,        'rdoc/context'
+  autoload :TopLevel,       'rdoc/top_level'
+
+  autoload :AnonClass,      'rdoc/anon_class'
+  autoload :ClassModule,    'rdoc/class_module'
+  autoload :NormalClass,    'rdoc/normal_class'
+  autoload :NormalModule,   'rdoc/normal_module'
+  autoload :SingleClass,    'rdoc/single_class'
+
+  autoload :Alias,          'rdoc/alias'
+  autoload :AnyMethod,      'rdoc/any_method'
+  autoload :MethodAttr,     'rdoc/method_attr'
+  autoload :GhostMethod,    'rdoc/ghost_method'
+  autoload :MetaMethod,     'rdoc/meta_method'
+  autoload :Attr,           'rdoc/attr'
+
+  autoload :Constant,       'rdoc/constant'
+  autoload :Mixin,          'rdoc/mixin'
+  autoload :Include,        'rdoc/include'
+  autoload :Extend,         'rdoc/extend'
+  autoload :Require,        'rdoc/require'
+
+end
+