Add rdoc 2.4.3 to vendor/gems

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diff --git a/vendor/gems/rdoc-2.4.3/lib/rdoc.rb b/vendor/gems/rdoc-2.4.3/lib/rdoc.rb
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+$DEBUG_RDOC = nil
+
+# :main: README.txt
+
+##
+# = \RDoc - Ruby Documentation System
+#
+# This package contains RDoc and RDoc::Markup.  RDoc is an application that
+# produces documentation for one or more Ruby source files.  It works similarly
+# to JavaDoc, parsing the source, and extracting the definition for classes,
+# modules, and methods (along with includes and requires).  It associates with
+# these optional documentation contained in the immediately preceding comment
+# block, and then renders the result using a pluggable output formatter.
+# RDoc::Markup is a library that converts plain text into various output
+# formats.  The markup library is used to interpret the comment blocks that
+# RDoc uses to document methods, classes, and so on.
+#
+# == Roadmap
+#
+# * If you want to use RDoc to create documentation for your Ruby source files,
+#   read on.
+# * If you want to include extensions written in C, see RDoc::Parser::C
+# * If you want to drive RDoc programmatically, see RDoc::RDoc.
+# * If you want to use the library to format text blocks into HTML, have a look
+#   at RDoc::Markup.
+# * If you want to try writing your own HTML output template, see
+#   RDoc::Generator::HTML
+#
+# == Summary
+#
+# Once installed, you can create documentation using the +rdoc+ command
+#
+#   % rdoc [options] [names...]
+#
+# For an up-to-date option summary, type
+#   % rdoc --help
+#
+# A typical use might be to generate documentation for a package of Ruby
+# source (such as RDoc itself).
+#
+#   % rdoc
+#
+# This command generates documentation for all the Ruby and C source
+# files in and below the current directory.  These will be stored in a
+# documentation tree starting in the subdirectory +doc+.
+#
+# You can make this slightly more useful for your readers by having the
+# index page contain the documentation for the primary file.  In our
+# case, we could type
+#
+#   % rdoc --main rdoc.rb
+#
+# You'll find information on the various formatting tricks you can use
+# in comment blocks in the documentation this generates.
+#
+# RDoc uses file extensions to determine how to process each file.  File names
+# ending +.rb+ and +.rbw+ are assumed to be Ruby source.  Files
+# ending +.c+ are parsed as C files.  All other files are assumed to
+# contain just Markup-style markup (with or without leading '#' comment
+# markers).  If directory names are passed to RDoc, they are scanned
+# recursively for C and Ruby source files only.
+#
+# == \Options
+#
+# rdoc can be passed a variety of command-line options.  In addition,
+# options can be specified via the +RDOCOPT+ environment variable, which
+# functions similarly to the +RUBYOPT+ environment variable.
+#
+#   % export RDOCOPT="-S"
+#
+# will make rdoc default to inline method source code.  Command-line options
+# always will override those in +RDOCOPT+.
+#
+# Run:
+# 
+#   rdoc --help
+#
+# for full details on rdoc's options.
+#
+# == Documenting Source Code
+#
+# Comment blocks can be written fairly naturally, either using <tt>#</tt> on
+# successive lines of the comment, or by including the comment in
+# a =begin/=end block.  If you use the latter form, the =begin line must be
+# flagged with an RDoc tag:
+#
+#   =begin rdoc
+#   Documentation to be processed by RDoc.
+#   
+#   ...
+#   =end
+#
+# RDoc stops processing comments if it finds a comment line containing
+# a <tt>--</tt>.  This can be used to separate external from internal
+# comments, or to stop a comment being associated with a method, class, or
+# module.  Commenting can be turned back on with a line that starts with a
+# <tt>++</tt>.
+#
+#   ##
+#   # Extract the age and calculate the date-of-birth.
+#   #--
+#   # FIXME: fails if the birthday falls on February 29th
+#   #++
+#   # The DOB is returned as a Time object.
+#   
+#   def get_dob(person)
+#     # ...
+#   end
+#
+# Names of classes, files, and any method names containing an
+# underscore or preceded by a hash character are automatically hyperlinked
+# from comment text to their description.
+#
+# Method parameter lists are extracted and displayed with the method
+# description.  If a method calls +yield+, then the parameters passed to yield
+# will also be displayed:
+#
+#   def fred
+#     ...
+#     yield line, address
+#
+# This will get documented as:
+#
+#   fred() { |line, address| ... }
+#
+# You can override this using a comment containing ':yields: ...' immediately
+# after the method definition
+#
+#   def fred # :yields: index, position
+#     # ...
+#   
+#     yield line, address
+#
+# which will get documented as
+#
+#    fred() { |index, position| ... }
+#
+# +:yields:+ is an example of a documentation directive.  These appear
+# immediately after the start of the document element they are modifying.
+#
+# RDoc automatically cross-references words with underscores or camel-case.
+# To suppress cross-references, prefix the word with a \\ character.  To
+# include special characters like "\\n", you'll need to use two \\
+# characters like "\\\\\\n".
+#
+# == \Markup
+#
+# * The markup engine looks for a document's natural left margin.  This is
+#   used as the initial margin for the document.
+#
+# * Consecutive lines starting at this margin are considered to be a
+#   paragraph.
+#
+# * If a paragraph starts with a "*", "-", or with "<digit>.", then it is
+#   taken to be the start of a list.  The margin in increased to be the first
+#   non-space following the list start flag.  Subsequent lines should be
+#   indented to this new margin until the list ends.  For example:
+#
+#      * this is a list with three paragraphs in
+#        the first item.  This is the first paragraph.
+#
+#        And this is the second paragraph.
+#
+#        1. This is an indented, numbered list.
+#        2. This is the second item in that list
+#
+#        This is the third conventional paragraph in the
+#        first list item.
+#
+#      * This is the second item in the original list
+#
+# * You can also construct labeled lists, sometimes called description
+#   or definition lists.  Do this by putting the label in square brackets
+#   and indenting the list body:
+#
+#       [cat]  a small furry mammal
+#              that seems to sleep a lot
+#
+#       [ant]  a little insect that is known
+#              to enjoy picnics
+#
+#   A minor variation on labeled lists uses two colons to separate the
+#   label from the list body:
+#
+#       cat::  a small furry mammal
+#              that seems to sleep a lot
+#
+#       ant::  a little insect that is known
+#              to enjoy picnics
+#
+#   This latter style guarantees that the list bodies' left margins are
+#   aligned: think of them as a two column table.
+#
+# * Any line that starts to the right of the current margin is treated
+#   as verbatim text.  This is useful for code listings.  The example of a
+#   list above is also verbatim text.
+#
+# * A line starting with an equals sign (=) is treated as a
+#   heading.  Level one headings have one equals sign, level two headings
+#   have two,and so on.
+#
+# * A line starting with three or more hyphens (at the current indent)
+#   generates a horizontal rule.  The more hyphens, the thicker the rule
+#   (within reason, and if supported by the output device)
+#
+# * You can use markup within text (except verbatim) to change the
+#   appearance of parts of that text.  Out of the box, RDoc::Markup
+#   supports word-based and general markup.
+#
+#   Word-based markup uses flag characters around individual words:
+#
+#   [<tt>\*word*</tt>]  displays word in a *bold* font
+#   [<tt>\_word_</tt>]  displays word in an _emphasized_ font
+#   [<tt>\+word+</tt>]  displays word in a +code+ font
+#
+#   General markup affects text between a start delimiter and and end
+#   delimiter.  Not surprisingly, these delimiters look like HTML markup.
+#
+#   [<tt>\<b>text...</b></tt>]    displays word in a *bold* font
+#   [<tt>\<em>text...</em></tt>]  displays word in an _emphasized_ font
+#   [<tt>\<i>text...</i></tt>]    displays word in an <i>italicized</i> font
+#   [<tt>\<tt>text...\</tt></tt>]  displays word in a +code+ font
+#
+#   Unlike conventional Wiki markup, general markup can cross line
+#   boundaries.  You can turn off the interpretation of markup by
+#   preceding the first character with a backslash.  This only works for
+#   simple markup, not HTML-style markup.
+#
+# * Hyperlinks to the web starting http:, mailto:, ftp:, or www. are
+#   recognized.  An HTTP url that references an external image file is
+#   converted into an inline \<IMG..>.  Hyperlinks starting 'link:' are
+#   assumed to refer to local files whose path is relative to the --op
+#   directory.
+#
+#   Hyperlinks can also be of the form <tt>label</tt>[url], in which
+#   case the label is used in the displayed text, and +url+ is
+#   used as the target.  If +label+ contains multiple words,
+#   put it in braces: <em>{multi word label}[</em>url<em>]</em>.
+#
+#   Example hyperlinks:
+#
+#     link:RDoc.html
+#     http://rdoc.rubyforge.org
+#     mailto:user@example.com
+#     {RDoc Documentation}[http://rdoc.rubyforge.org]
+#     {RDoc Markup}[link:RDoc/Markup.html]
+#
+# == Directives
+#
+# [+:nodoc:+ / +:nodoc:+ all]
+#   This directive prevents documentation for the element from
+#   being generated.  For classes and modules, the methods, aliases,
+#   constants, and attributes directly within the affected class or
+#   module also will be omitted.  By default, though, modules and
+#   classes within that class of module _will_ be documented.  This is
+#   turned off by adding the +all+ modifier.
+#   
+#     module MyModule # :nodoc:
+#       class Input
+#       end
+#     end
+#     
+#     module OtherModule # :nodoc: all
+#       class Output
+#       end
+#     end
+#
+#   In the above code, only class <tt>MyModule::Input</tt> will be documented.
+#   The +:nodoc:+ directive is global across all files for the class or module
+#   to which it applies, so use +:stopdoc:+/+:startdoc:+ to suppress
+#   documentation only for a particular set of methods, etc.
+#
+# [+:doc:+]
+#   Forces a method or attribute to be documented even if it wouldn't be
+#   otherwise.  Useful if, for example, you want to include documentation of a
+#   particular private method.
+#
+# [+:notnew:+]
+#   Only applicable to the +initialize+ instance method.  Normally RDoc
+#   assumes that the documentation and parameters for +initialize+ are
+#   actually for the +new+ method, and so fakes out a +new+ for the class.
+#   The +:notnew:+ modifier stops this.  Remember that +initialize+ is private,
+#   so you won't see the documentation unless you use the +-a+ command line
+#   option.
+#
+# Comment blocks can contain other directives:
+#
+# [<tt>:section: title</tt>]
+#   Starts a new section in the output.  The title following +:section:+ is
+#   used as the section heading, and the remainder of the comment containing
+#   the section is used as introductory text.  Subsequent methods, aliases,
+#   attributes, and classes will be documented in this section.  A :section:
+#   comment block may have one or more lines before the :section: directive.
+#   These will be removed, and any identical lines at the end of the block are
+#   also removed.  This allows you to add visual cues such as:
+#     
+#     # ----------------------------------------
+#     # :section: My Section
+#     # This is the section that I wrote.
+#     # See it glisten in the noon-day sun.
+#     # ----------------------------------------
+#
+# [+:call-seq:+]
+#   Lines up to the next blank line in the comment are treated as the method's
+#   calling sequence, overriding the default parsing of method parameters and
+#   yield arguments.
+#
+# [+:include:+ _filename_]
+#   \Include the contents of the named file at this point.  The file will be
+#   searched for in the directories listed by the +--include+ option, or in
+#   the current directory by default.  The contents of the file will be
+#   shifted to have the same indentation as the ':' at the start of
+#   the :include: directive.
+#
+# [+:title:+ _text_]
+#   Sets the title for the document.  Equivalent to the <tt>--title</tt>
+#   command line parameter.  (The command line parameter overrides any :title:
+#   directive in the source).
+#
+# [+:enddoc:+]
+#   Document nothing further at the current level.
+#
+# [+:main:+ _name_]
+#   Equivalent to the <tt>--main</tt> command line parameter.
+#
+# [+:stopdoc:+ / +:startdoc:+]
+#   Stop and start adding new documentation elements to the current container.
+#   For example, if a class has a number of constants that you don't want to
+#   document, put a +:stopdoc:+ before the first, and a +:startdoc:+ after the
+#   last.  If you don't specify a +:startdoc:+ by the end of the container,
+#   disables documentation for the entire class or module.
+#
+# == Other stuff
+#
+# RDoc is currently being maintained by Eric Hodel <drbrain@segment7.net>
+#
+# Dave Thomas <dave@pragmaticprogrammer.com> is the original author of RDoc.
+#
+# == Credits
+#
+# * 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.
+#
+# * Code to diagram classes and modules was written by Sergey A Yanovitsky
+#   (Jah) of Enticla.
+#
+# * Charset patch from MoonWolf.
+#
+# * Rich Kilmer wrote the kilmer.rb output template.
+#
+# * Dan Brickley led the design of the RDF format.
+#
+# == License
+#
+# RDoc is Copyright (c) 2001-2003 Dave Thomas, The Pragmatic Programmers.  It
+# is free software, and may be redistributed under the terms specified
+# in the README file of the Ruby distribution.
+#
+# == Warranty
+#
+# This software is provided "as is" and without any express or implied
+# warranties, including, without limitation, the implied warranties of
+# merchantibility and fitness for a particular purpose.
+
+module RDoc
+
+  ##
+  # Exception thrown by any rdoc error.
+
+  class Error < RuntimeError; end
+
+  RDocError = Error # :nodoc:
+
+  ##
+  # RDoc version you are using
+
+  VERSION = '2.4.3'
+
+  ##
+  # Name of the dotfile that contains the description of files to be processed
+  # in the current directory
+
+  DOT_DOC_FILENAME = ".document"
+
+  GENERAL_MODIFIERS = %w[nodoc].freeze
+
+  CLASS_MODIFIERS = GENERAL_MODIFIERS
+
+  ATTR_MODIFIERS  = GENERAL_MODIFIERS
+
+  CONSTANT_MODIFIERS = GENERAL_MODIFIERS
+
+  METHOD_MODIFIERS = GENERAL_MODIFIERS +
+    %w[arg args yield yields notnew not-new not_new doc]
+
+end
+