class RDoc::Options

# File lib/rdoc/options.rb, line 405
def check_files
  @files.delete_if do |file|
    if File.exist? file then
      if File.readable? file then
        false
      else
        warn "file '#{file}' not readable"

        true
      end
    else
      warn "file '#{file}' not found"

      true
    end
  end
end

# File lib/rdoc/options.rb, line 426
def check_generator
  if @generator then
    raise OptionParser::InvalidOption,
      "generator already set to #{@generator_name}"
  end
end

# File lib/rdoc/options.rb, line 438
def default_title=(string)
  @title ||= string
end

# File lib/rdoc/options.rb, line 465
def finish
  @op_dir ||= 'doc'

  @rdoc_include << "." if @rdoc_include.empty?

  if @exclude.nil? or Regexp === @exclude then
    # done, #finish is being re-run
  elsif @exclude.empty? then
    @exclude = nil
  else
    @exclude = Regexp.new(@exclude.join("|"))
  end

  finish_page_dir

  check_files

  # If no template was specified, use the default template for the output
  # formatter

  unless @template then
    @template     = @generator_name
    @template_dir = template_dir_for @template
  end

  self
end

# File lib/rdoc/options.rb, line 497
def finish_page_dir
  return unless @page_dir

  @files << @page_dir.to_s

  page_dir = @page_dir.expand_path.relative_path_from @root

  @page_dir = page_dir
end

# File lib/rdoc/options.rb, line 510
def generator_descriptions
  lengths = []

  generators = RDoc::RDoc::GENERATORS.map do |name, generator|
    lengths << name.length

    description = generator::DESCRIPTION if
      generator.const_defined? :DESCRIPTION

    [name, description]
  end

  longest = lengths.max

  generators.sort.map do |name, description|
    if description then
      "  %-*s - %s" % [longest, name, description]
    else
      "  #{name}"
    end
  end.join "\n"
end

# File lib/rdoc/options.rb, line 536
  def parse argv
    ignore_invalid = true

    argv.insert(0, *ENV['RDOCOPT'].split) if ENV['RDOCOPT']

    opts = OptionParser.new do |opt|
      @option_parser = opt
      opt.program_name = File.basename $0
      opt.version = RDoc::VERSION
      opt.release = nil
      opt.summary_indent = ' ' * 4
      opt.banner = <<-EOF
Usage: #{opt.program_name} [options] [names...]

  Files are parsed, and the information they contain collected, before any
  output is produced. This allows cross references between all files to be
  resolved. If a name is a directory, it is traversed. If no names are
  specified, all Ruby files in the current directory (and subdirectories) are
  processed.

  How RDoc generates output depends on the output formatter being used, and on
  the options you give.

  Options can be specified via the RDOCOPT environment variable, which
  functions similar to the RUBYOPT environment variable for ruby.

    $ export RDOCOPT="--show-hash"

  will make rdoc show hashes in method links by default.  Command-line options
  always will override those in RDOCOPT.

  Available formatters:

#{generator_descriptions}

  RDoc understands the following file formats:

      EOF

      parsers = Hash.new { |h,parser| h[parser] = [] }

      RDoc::Parser.parsers.each do |regexp, parser|
        parsers[parser.name.sub('RDoc::Parser::', '')] << regexp.source
      end

      parsers.sort.each do |parser, regexp|
        opt.banner << "  - #{parser}: #{regexp.join ', '}\n"
      end

      opt.banner << "\n  The following options are deprecated:\n\n"

      name_length = DEPRECATED.keys.sort_by { |k| k.length }.last.length

      DEPRECATED.sort_by { |k,| k }.each do |name, reason|
        opt.banner << "    %*1$2$s  %3$s\n" % [-name_length, name, reason]
      end

      opt.accept Template do |template|
        template_dir = template_dir_for template

        unless template_dir then
          $stderr.puts "could not find template #{template}"
          nil
        else
          [template, template_dir]
        end
      end

      opt.accept Directory do |directory|
        directory = File.expand_path directory

        raise OptionParser::InvalidArgument unless File.directory? directory

        directory
      end

      opt.accept Path do |path|
        path = File.expand_path path

        raise OptionParser::InvalidArgument unless File.exist? path

        path
      end

      opt.accept PathArray do |paths,|
        paths = if paths then
                  paths.split(',').map { |d| d unless d.empty? }
                end

        paths.map do |path|
          path = File.expand_path path

          raise OptionParser::InvalidArgument unless File.exist? path

          path
        end
      end

      opt.separator nil
      opt.separator "Parsing options:"
      opt.separator nil

      if Object.const_defined? :Encoding then
        opt.on("--encoding=ENCODING", "-e", Encoding.list.map { |e| e.name },
               "Specifies the output encoding.  All files",
               "read will be converted to this encoding.",
               "The default encoding is UTF-8.",
               "--encoding is preferred over --charset") do |value|
                 @encoding = Encoding.find value
                 @charset = @encoding.name # may not be valid value
               end

        opt.separator nil
      end

      opt.on("--all", "-a",
             "Synonym for --visibility=private.") do |value|
        @visibility = :private
      end

      opt.separator nil

      opt.on("--exclude=PATTERN", "-x", Regexp,
             "Do not process files or directories",
             "matching PATTERN.") do |value|
        @exclude << value
      end

      opt.separator nil

      opt.on("--extension=NEW=OLD", "-E",
             "Treat files ending with .new as if they",
             "ended with .old. Using '-E cgi=rb' will",
             "cause xxx.cgi to be parsed as a Ruby file.") do |value|
        new, old = value.split(/=/, 2)

        unless new and old then
          raise OptionParser::InvalidArgument, "Invalid parameter to '-E'"
        end

        unless RDoc::Parser.alias_extension old, new then
          raise OptionParser::InvalidArgument, "Unknown extension .#{old} to -E"
        end
      end

      opt.separator nil

      opt.on("--[no-]force-update", "-U",
             "Forces rdoc to scan all sources even if",
             "newer than the flag file.") do |value|
        @force_update = value
      end

      opt.separator nil

      opt.on("--pipe", "-p",
             "Convert RDoc on stdin to HTML") do
        @pipe = true
      end

      opt.separator nil

      opt.on("--tab-width=WIDTH", "-w", OptionParser::DecimalInteger,
             "Set the width of tab characters.") do |value|
        @tab_width = value
      end

      opt.separator nil

      opt.on("--visibility=VISIBILITY", "-V", RDoc::VISIBILITIES,
             "Minimum visibility to document a method.",
             "One of 'public', 'protected' (the default)",
             "or 'private'. Can be abbreviated.") do |value|
        @visibility = value
      end

      opt.separator nil

      markup_formats = RDoc::Text::MARKUP_FORMAT.keys.sort

      opt.on("--markup=MARKUP", markup_formats,
             "The markup format for the named files.",
             "The default is rdoc.  Valid values are:",
             markup_formats.join(', ')) do |value|
        @markup = value
      end

      opt.separator nil

      opt.on("--root=ROOT", Directory,
             "Root of the source tree documentation",
             "will be generated for.  Set this when",
             "building documentation outside the",
             "source directory.  Default is the",
             "current directory.") do |root|
        @root = Pathname(root)
      end

      opt.separator nil

      opt.on("--page-dir=DIR", Directory,
             "Directory where guides, your FAQ or",
             "other pages not associated with a class",
             "live.  Set this when you don't store",
             "such files at your project root.",
             "NOTE: Do not use the same file name in",
             "the page dir and the root of your project") do |page_dir|
        @page_dir = Pathname(page_dir)
      end

      opt.separator nil
      opt.separator "Common generator options:"
      opt.separator nil

      opt.on("--force-output", "-O",
             "Forces rdoc to write the output files,",
             "even if the output directory exists",
             "and does not seem to have been created",
             "by rdoc.") do |value|
        @force_output = value
      end

      opt.separator nil

      generator_text = @generators.keys.map { |name| "  #{name}" }.sort

      opt.on("-f", "--fmt=FORMAT", "--format=FORMAT", @generators.keys,
             "Set the output formatter.  One of:", *generator_text) do |value|
        check_generator

        @generator_name = value.downcase
        setup_generator
      end

      opt.separator nil

      opt.on("--include=DIRECTORIES", "-i", PathArray,
             "Set (or add to) the list of directories to",
             "be searched when satisfying :include:",
             "requests. Can be used more than once.") do |value|
        @rdoc_include.concat value.map { |dir| dir.strip }
      end

      opt.separator nil

      opt.on("--[no-]coverage-report=[LEVEL]", "--[no-]dcov", "-C", Integer,
             "Prints a report on undocumented items.",
             "Does not generate files.") do |value|
        value = 0 if value.nil? # Integer converts -C to nil

        @coverage_report = value
        @force_update = true if value
      end

      opt.separator nil

      opt.on("--output=DIR", "--op", "-o",
             "Set the output directory.") do |value|
        @op_dir = value
      end

      opt.separator nil

      opt.on("-d",
             "Deprecated --diagram option.",
             "Prevents firing debug mode",
             "with legacy invocation.") do |value|
      end

      opt.separator nil
      opt.separator 'HTML generator options:'
      opt.separator nil

      opt.on("--charset=CHARSET", "-c",
             "Specifies the output HTML character-set.",
             "Use --encoding instead of --charset if",
             "available.") do |value|
        @charset = value
      end

      opt.separator nil

      opt.on("--hyperlink-all", "-A",
             "Generate hyperlinks for all words that",
             "correspond to known methods, even if they",
             "do not start with '#' or '::' (legacy",
             "behavior).") do |value|
        @hyperlink_all = value
      end

      opt.separator nil

      opt.on("--main=NAME", "-m",
             "NAME will be the initial page displayed.") do |value|
        @main_page = value
      end

      opt.separator nil

      opt.on("--[no-]line-numbers", "-N",
             "Include line numbers in the source code.",
             "By default, only the number of the first",
             "line is displayed, in a leading comment.") do |value|
        @line_numbers = value
      end

      opt.separator nil

      opt.on("--show-hash", "-H",
             "A name of the form #name in a comment is a",
             "possible hyperlink to an instance method",
             "name. When displayed, the '#' is removed",
             "unless this option is specified.") do |value|
        @show_hash = value
      end

      opt.separator nil

      opt.on("--template=NAME", "-T", Template,
             "Set the template used when generating",
             "output. The default depends on the",
             "formatter used.") do |(template, template_dir)|
        @template     = template
        @template_dir = template_dir
      end

      opt.separator nil

      opt.on("--title=TITLE", "-t",
             "Set TITLE as the title for HTML output.") do |value|
        @title = value
      end

      opt.separator nil

      opt.on("--copy-files=PATH", Path,
             "Specify a file or directory to copy static",
             "files from.",
             "If a file is given it will be copied into",
             "the output dir.  If a directory is given the",
             "entire directory will be copied.",
             "You can use this multiple times") do |value|
        @static_path << value
      end

      opt.separator nil

      opt.on("--webcvs=URL", "-W",
             "Specify a URL for linking to a web frontend",
             "to CVS. If the URL contains a '\%s', the",
             "name of the current file will be",
             "substituted; if the URL doesn't contain a",
             "'\%s', the filename will be appended to it.") do |value|
        @webcvs = value
      end

      opt.separator nil
      opt.separator "ri generator options:"
      opt.separator nil

      opt.on("--ri", "-r",
             "Generate output for use by `ri`. The files",
             "are stored in the '.rdoc' directory under",
             "your home directory unless overridden by a",
             "subsequent --op parameter, so no special",
             "privileges are needed.") do |value|
        check_generator

        @generator_name = "ri"
        @op_dir ||= RDoc::RI::Paths::HOMEDIR
        setup_generator
      end

      opt.separator nil

      opt.on("--ri-site", "-R",
             "Generate output for use by `ri`. The files",
             "are stored in a site-wide directory,",
             "making them accessible to others, so",
             "special privileges are needed.") do |value|
        check_generator

        @generator_name = "ri"
        @op_dir = RDoc::RI::Paths::SITEDIR
        setup_generator
      end

      opt.separator nil
      opt.separator "Generic options:"
      opt.separator nil

      opt.on("--write-options",
             "Write .rdoc_options to the current",
             "directory with the given options.  Not all",
             "options will be used.  See RDoc::Options",
             "for details.") do |value|
        @write_options = true
      end

      opt.separator nil

      opt.on("--[no-]dry-run",
             "Don't write any files") do |value|
        @dry_run = value
      end

      opt.separator nil

      opt.on("-D", "--[no-]debug",
             "Displays lots on internal stuff.") do |value|
        $DEBUG_RDOC = value
      end

      opt.separator nil

      opt.on("--[no-]ignore-invalid",
             "Ignore invalid options and continue",
             "(default true).") do |value|
        ignore_invalid = value
      end

      opt.separator nil

      opt.on("--quiet", "-q",
             "Don't show progress as we parse.") do |value|
        @verbosity = 0
      end

      opt.separator nil

      opt.on("--verbose", "-v",
             "Display extra progress as RDoc parses") do |value|
        @verbosity = 2
      end

      opt.separator nil

      opt.on("--help",
             "Display this help") do
        RDoc::RDoc::GENERATORS.each_key do |generator|
          setup_generator generator
        end

        puts opt.help
        exit
      end

      opt.separator nil
    end

    setup_generator 'darkfish' if
      argv.grep(/\A(-f|--fmt|--format|-r|-R|--ri|--ri-site)\b/).empty?

    deprecated = []
    invalid = []

    begin
      opts.parse! argv
    rescue OptionParser::InvalidArgument, OptionParser::InvalidOption => e
      if DEPRECATED[e.args.first] then
        deprecated << e.args.first
      elsif %w[--format --ri -r --ri-site -R].include? e.args.first then
        raise
      else
        invalid << e.args.join(' ')
      end

      retry
    end

    unless @generator then
      @generator = RDoc::Generator::Darkfish
      @generator_name = 'darkfish'
    end

    if @pipe and not argv.empty? then
      @pipe = false
      invalid << '-p (with files)'
    end

    unless quiet then
      deprecated.each do |opt|
        $stderr.puts 'option ' << opt << ' is deprecated: ' << DEPRECATED[opt]
      end

      unless invalid.empty? then
        invalid = "invalid options: #{invalid.join ', '}"

        if ignore_invalid then
          $stderr.puts invalid
          $stderr.puts '(invalid options are ignored)'
        else
          $stderr.puts opts
          $stderr.puts invalid
          exit 1
        end
      end
    end

    @files = argv.dup

    finish

    if @write_options then
      write_options
      exit
    end

    self
  end

# File lib/rdoc/options.rb, line 1050
def quiet
  @verbosity.zero?
end

# File lib/rdoc/options.rb, line 1057
def quiet= bool
  @verbosity = bool ? 0 : 1
end

# File lib/rdoc/options.rb, line 1064
def sanitize_path path
  require 'pathname'
  dot = Pathname.new('.').expand_path

  path.reject do |item|
    path = Pathname.new(item).expand_path
    relative = path.relative_path_from(dot).to_s
    relative.start_with? '..'
  end
end

# File lib/rdoc/options.rb, line 1082
def setup_generator generator_name = @generator_name
  @generator = @generators[generator_name]

  unless @generator then
    raise OptionParser::InvalidArgument,
          "Invalid output formatter #{generator_name}"
  end

  return if @generator_options.include? @generator

  @generator_name = generator_name
  @generator_options << @generator

  if @generator.respond_to? :setup_options then
    @option_parser ||= OptionParser.new
    @generator.setup_options self
  end
end

# File lib/rdoc/options.rb, line 1104
def template_dir_for template
  template_path = File.join 'rdoc', 'generator', 'template', template

  $LOAD_PATH.map do |path|
    File.join File.expand_path(path), template_path
  end.find do |dir|
    File.directory? dir
  end
end

# File lib/rdoc/options.rb, line 1130
def warn message
  super message if @verbosity > 1
end

# File lib/rdoc/options.rb, line 1138
def write_options
  RDoc.load_yaml

  open '.rdoc_options', 'w' do |io|
    io.set_encoding Encoding::UTF_8 if Object.const_defined? :Encoding

    YAML.dump self, io
  end
end