### Home Classes Methods

### In Files

- lib/rdoc/options.rb

### Parent

Object

### Methods

- #check_files
- #check_generator
- #default_title=
- #finish
- #finish_page_dir
- #generator_descriptions
- #parse
- #quiet
- #quiet=
- #sanitize_path
- #setup_generator
- #template_dir_for
- #warn
- #write_options

### Files

- CONTRIBUTING.rdoc
- CVE-2013-0256.rdoc
- ExampleRDoc.rdoc
- LICENSE.rdoc
- Manifest.txt
- README.rdoc
- RI.rdoc
- Rakefile
- TODO.rdoc

### Class/Module Index

Quicksearch

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- RDoc::RD::InlineParser
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- RDoc::Store
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- RDoc::Task
- RDoc::Task
- RDoc::TestCase
- RDoc::TokenStream
- RDoc::TomDoc
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- Object

No matching classes.

# RDoc::Options

RDoc::Options handles the parsing and storage of options

## Saved Options

You can save some options like the markup format in the `.rdoc_options` file in your gem. The easiest way to do this is:

    rdoc --markup tomdoc --write-options

Which will automatically create the file and fill it with the options you specified.

The following options will not be saved since they interfere with the user's preferences or with the normal operation of RDoc:

- `--coverage-report`

- `--dry-run`

- `--encoding`

- `--force-update`

- `--format`

- `--pipe`

- `--quiet`

- `--template`

- `--verbose`

## Custom Options

Generators can hook into RDoc::Options to add generator-specific command line options.

When `--format` is encountered in ARGV, RDoc calls ::setup_options on the generator class to add extra options to the option parser. Options for custom generators must occur after `--format`. `rdoc --help` will list options for all installed generators.

Example:

    class RDoc::Generator::Spellcheck
      RDoc::RDoc.add_generator self

      def self.setup_options rdoc_options
        op = rdoc_options.option_parser

        op.on('--spell-dictionary DICTIONARY',
              RDoc::Options::Path) do |dictionary|
          rdoc_options.spell_dictionary = dictionary
        end
      end
    end

Of course, RDoc::Options does not respond to `spell_dictionary` by default so you will need to add it:

    class RDoc::Options

      ##
      # The spell dictionary used by the spell-checking plugin.

      attr_accessor :spell_dictionary

    end

## Option Validators

OptionParser validators will validate and cast user input values. In addition to the validators that ship with OptionParser (String, Integer, Float, TrueClass, FalseClass, Array, Regexp, Date, Time, URI, etc.), RDoc::Options adds Path, PathArray and Template.

### Constants

DEPRECATED

  The deprecated options.

Directory

  Option validator for OptionParser that matches a directory that exists on the filesystem.

Path

  Option validator for OptionParser that matches a file or directory that exists on the filesystem.

PathArray

  Option validator for OptionParser that matches a comma-separated list of files or directories that exist on the filesystem.

SPECIAL

  RDoc options ignored (or handled specially) by --write-options

Template

  Option validator for OptionParser that matches a template directory for an installed generator that lives in `"rdoc/generator/template/#{template_name}"`

### Attributes

charset[RW]

Character-set for HTML output. encoding is preferred over charset

coverage_report[RW]

If true, only report on undocumented files

dry_run[RW]

If true, RDoc will not write any files.

encoding[RW]

The output encoding. All input files will be transcoded to this encoding.

The default encoding is UTF-8. This is set via --encoding.

exclude[RW]

Files matching this pattern will be excluded

files[RW]

The list of files to be processed

force_output[RW]

Create the output even if the output directory does not look like an rdoc output directory

force_update[RW]

Scan newer sources than the flag file if true.

formatter[RW]

Formatter to mark up text with

generator[RW]

Description of the output generator (set with the `--format` option)

generator_options[RW]

Loaded generator options. Used to prevent --help from loading the same options multiple times.

hyperlink_all[RW]

Old rdoc behavior: hyperlink all words that match a method name, even if not preceded by '#' or '::'

line_numbers[RW]

Include line numbers in the source code

main_page[RW]

Name of the file, class or module to display in the initial index page (if not specified the first file we encounter is used)

markup[RW]

The default markup format. The default is 'rdoc'. 'markdown', 'tomdoc' and 'rd' are also built-in.

op_dir[RW]

The name of the output directory

option_parser[RW]

The OptionParser for this instance

output_decoration[RW]

Output heading decorations?

page_dir[RW]

Directory where guides, FAQ, and other pages not associated with a class live. You may leave this unset if these are at the root of your project.

pipe[RW]

Is RDoc in pipe mode?

rdoc_include[RW]

Array of directories to search for files to satisfy an :include:

root[RW]

Root of the source documentation will be generated for. Set this when building documentation outside the source directory. Defaults to the current directory.

show_hash[RW]

Include the '#' at the front of hyperlinked instance method names

static_path[RW]

Directory to copy static files from

tab_width[RW]

The number of columns in a tab

template[RW]

Template to be used when generating output

template_dir[RW]

Directory the template lives in

template_stylesheets[RW]

Additional template stylesheets

title[RW]

Documentation title

update_output_dir[RW]

Should RDoc update the timestamps in the output dir?

verbosity[RW]

Verbosity, zero means quiet

visibility[RW]

Minimum visibility of a documented method. One of `:public`, `:protected`, `:private` or `:nodoc`.

The `:nodoc` visibility ignores all directives related to visibility. The other visibilities may be overridden on a per-method basis with the :doc: directive.

webcvs[RW]

URL of web cvs frontend

### Public Instance Methods

check_files() click to toggle source

Check that the files on the command line exist

    # File lib/rdoc/options.rb, line 431
    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

check_generator() click to toggle source

Ensure only one generator is loaded

    # File lib/rdoc/options.rb, line 452
    def check_generator
      if @generator then
        raise OptionParser::InvalidOption,
          "generator already set to #{@generator_name}"
      end
    end

default_title=(string) click to toggle source

Set the title, but only if not already set. Used to set the title from a source file, so that a title set from the command line will have the priority.

    # File lib/rdoc/options.rb, line 464
    def default_title=(string)
      @title ||= string
    end

finish() click to toggle source

Completes any unfinished option setup business such as filtering for existent files, creating a regexp for exclude and setting a default template.

    # File lib/rdoc/options.rb, line 491
    def finish
      @op_dir ||= 'doc'

      @rdoc_include << "." if @rdoc_include.empty?
      root = @root.to_s
      @rdoc_include << root unless @rdoc_include.include?(root)

      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

finish_page_dir() click to toggle source

Fixes the page_dir to be relative to the root_dir and adds the page_dir to the files list.

    # File lib/rdoc/options.rb, line 525
    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

generator_descriptions() click to toggle source

Returns a properly-space list of generators and their descriptions.

    # File lib/rdoc/options.rb, line 538
    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

parse(argv) click to toggle source

Parses command line options.

    # File lib/rdoc/options.rb, line 564
    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 = 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:

        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 << "  - TomDoc:  Only in ruby files\n"

        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", Integer,
               "Set the width of tab characters.") do |value|
          raise OptionParser::InvalidArgument,
                "#{value} is an invalid tab width" if value <= 0
          @tab_width = value
        end

        opt.separator nil

        opt.on("--visibility=VISIBILITY", "-V", RDoc::VISIBILITIES + [:nodoc],
               "Minimum visibility to document a method.",
               "One of 'public', 'protected' (the default),",
               "'private' or 'nodoc' (show everything)") 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("--template-stylesheets=FILES", PathArray,
               "Set (or add to) the list of files to",
               "include with the html template.") do |value|
          @template_stylesheets << value
        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.site_dir
          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("--version", "-v", "print the version") do
          puts opt.version
          exit
        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::ParseError => e
        if DEPRECATED[e.args.first] then
          deprecated << e.args.first
        elsif ]--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
      end

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

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

      @files = argv.dup

      finish

      if @write_options then
        write_options
        exit
      end

      self
    end

quiet() click to toggle source

Don't display progress as we process the files

    # File lib/rdoc/options.rb, line 1100
    def quiet
      @verbosity.zero?
    end

quiet=(bool) click to toggle source

Set quietness to `bool`

    # File lib/rdoc/options.rb, line 1107
    def quiet= bool
      @verbosity = bool ? 0 : 1
    end

sanitize_path(path) click to toggle source

Removes directories from `path` that are outside the current directory

    # File lib/rdoc/options.rb, line 1114
    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

setup_generator(generator_name = @generator_name) click to toggle source

Set up an output generator for the named `generator_name`.

If the found generator responds to :setup_options it will be called with the options instance. This allows generators to add custom options or set default options.

    # File lib/rdoc/options.rb, line 1132
    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

template_dir_for(template) click to toggle source

Finds the template dir for `template`

    # File lib/rdoc/options.rb, line 1154
    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

warn(message) click to toggle source

Displays a warning using Kernel#warn if we're being verbose

    # File lib/rdoc/options.rb, line 1180
    def warn message
      super message if @verbosity > 1
    end

write_options() click to toggle source

Writes the YAML file .rdoc_options to the current directory containing the parsed options.

    # File lib/rdoc/options.rb, line 1188
    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

[Validate]

Generated with the Darkfish Rdoc Generator 2.