process_args

# File lib/rdoc/ri/driver.rb, line 98
  def self.process_args(argv)
    options = default_options

    opts = OptionParser.new do |opt|
      opt.program_name = File.basename $0
      opt.version = RDoc::VERSION
      opt.release = nil
      opt.summary_indent = ' ' * 4

      directories = [
        RDoc::RI::Paths::SYSDIR,
        RDoc::RI::Paths::SITEDIR,
        RDoc::RI::Paths::HOMEDIR
      ]

      if RDoc::RI::Paths::GEMDIRS then
        Gem.path.each do |dir|
          directories << "#{dir}/doc/*/ri"
        end
      end

      opt.banner = Usage: #{opt.program_name} [options] [names...]Where name can be:  Class | Class::method | Class#method | Class.method | methodAll class names may be abbreviated to their minimum unambiguous form. If a nameis ambiguous, all valid options will be listed.The form '.' method matches either class or instance methods, while #methodmatches only instance and ::method matches only class methods.For example:    #{opt.program_name} Fil    #{opt.program_name} File    #{opt.program_name} File.new    #{opt.program_name} zipNote that shell quoting may be required for method names containingpunctuation:    #{opt.program_name} 'Array.[]'    #{opt.program_name} compact\\!By default ri searches for documentation in the following directories:    #{directories.join "\n    "}Specifying the --system, --site, --home, --gems or --doc-dir options willlimit ri to searching only the specified directories.Options may also be set in the 'RI' environment variable.

      opt.separator nil
      opt.separator "Options:"
      opt.separator nil

      opt.on("--fmt=FORMAT", "--format=FORMAT", "-f",
             RDoc::RI::Formatter::FORMATTERS.keys,
             "Format to use when displaying output:",
             "   #{RDoc::RI::Formatter.list}",
             "Use 'bs' (backspace) with most pager",
             "programs. To use ANSI, either disable the",
             "pager or tell the pager to allow control",
             "characters.") do |value|
        options[:formatter] = RDoc::RI::Formatter.for value
      end

      opt.separator nil

      opt.on("--doc-dir=DIRNAME", "-d", Array,
             "List of directories from which to source",
             "documentation in addition to the standard",
             "directories.  May be repeated.") do |value|
        value.each do |dir|
          unless File.directory? dir then
            raise OptionParser::InvalidArgument, "#{dir} is not a directory"
          end

          options[:extra_doc_dirs] << File.expand_path(dir)
        end
      end

      opt.separator nil

      opt.on("--[no-]use-cache",
             "Whether or not to use ri's cache.",
             "True by default.") do |value|
        options[:use_cache] = value
      end

      opt.separator nil

      opt.on("--no-standard-docs",
             "Do not include documentation from",
             "the Ruby standard library, site_lib,",
             "installed gems, or ~/.rdoc.",
             "Equivalent to specifying",
             "the options --no-system, --no-site, --no-gems,",
             "and --no-home") do
        options[:use_system] = false
        options[:use_site] = false
        options[:use_gems] = false
        options[:use_home] = false
      end

      opt.separator nil

      opt.on("--[no-]system",
             "Include documentation from Ruby's standard",
             "library.  Defaults to true.") do |value|
        options[:use_system] = value
      end

      opt.separator nil

      opt.on("--[no-]site",
             "Include documentation from libraries",
             "installed in site_lib.",
             "Defaults to true.") do |value|
        options[:use_site] = value
      end

      opt.separator nil

      opt.on("--[no-]gems",
             "Include documentation from RubyGems.",
             "Defaults to true.") do |value|
        options[:use_gems] = value
      end

      opt.separator nil

      opt.on("--[no-]home",
             "Include documentation stored in ~/.rdoc.",
             "Defaults to true.") do |value|
        options[:use_home] = value
      end

      opt.separator nil

      opt.on("--list-doc-dirs",
             "List the directories from which ri will",
             "source documentation on stdout and exit.") do
        options[:list_doc_dirs] = true
      end

      opt.separator nil

      opt.on("--no-pager", "-T",
             "Send output directly to stdout,",
             "rather than to a pager.") do
        options[:use_stdout] = true
      end

      opt.on("--interactive", "-i",
             "This makes ri go into interactive mode.",
             "When ri is in interactive mode it will",
             "allow the user to disambiguate lists of",
             "methods in case multiple methods match",
             "against a method search string.  It also",
             "will allow the user to enter in a method",
             "name (with auto-completion, if readline",
             "is supported) when viewing a class.") do
        options[:interactive] = true
      end

      opt.separator nil

      opt.on("--width=WIDTH", "-w", OptionParser::DecimalInteger,
             "Set the width of the output.") do |value|
        options[:width] = value
      end
    end

    argv = ENV['RI'].to_s.split.concat argv

    opts.parse! argv

    options[:names] = argv

    options[:formatter] ||= RDoc::RI::Formatter.for('plain')
    options[:use_stdout] ||= !$stdout.tty?
    options[:use_stdout] ||= options[:interactive]
    options[:width] ||= 72

    options

  rescue OptionParser::InvalidArgument, OptionParser::InvalidOption => e
    puts opts
    puts
    puts e
    exit 1
  end