process_args

# File lib/rdoc/ri/driver.rb, line 108
  def self.process_args argv
    options = default_options

    opts = OptionParser.new do |opt|
      opt.accept File do |file,|
        File.readable?(file) and not File.directory?(file) and file
      end

      opt.program_name = File.basename $0
      opt.version = RDoc::VERSION
      opt.release = nil
      opt.summary_indent = ' ' * 4

      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.A '.' 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 or escaping may be required for method names containingpunctuation:    #{opt.program_name} 'Array.[]'    #{opt.program_name} compact\\!To see the default directories ri will search, run:    #{opt.program_name} --list-doc-dirsSpecifying 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

      formatters = RDoc::Markup.constants.grep(/^To[A-Z][a-z]+$/).sort
      formatters = formatters.sort.map do |formatter|
        formatter.to_s.sub('To', '').downcase
      end

      opt.on("--format=NAME", "-f",
             "Uses the selected formatter. The default",
             "formatter is bs for paged output and ansi",
             "otherwise. Valid formatters are:",
             formatters.join(' '), formatters) do |value|
        options[:formatter] = RDoc::Markup.const_get "To#{value.capitalize}"
      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.separator nil

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

      opt.separator nil

      opt.on("--interactive", "-i",
             "In interactive mode you can repeatedly",
             "look up methods with autocomplete.") do
        options[:interactive] = true
      end

      opt.separator nil

      opt.on("--list", "-l",
             "List classes ri knows about.") do
        options[:list] = true
      end

      opt.separator nil

      opt.on("--[no-]profile",
             "Run with the ruby profiler") do |value|
        options[:profile] = value
      end

      opt.separator nil
      opt.separator "Data source options:"
      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("--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-standard-docs",
             "Do not include documentation from",
             "the Ruby standard library, site_lib,",
             "installed gems, or ~/.rdoc.",
             "Use with --doc-dir") 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.separator "Debug options:"
      opt.separator nil

      opt.on("--dump=CACHE", File,
             "Dumps data from an ri cache or data file") do |value|
        options[:dump_path] = value
      end
    end

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

    opts.parse! argv

    options[:names] = argv

    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