# File lib/cucumber/cli/options.rb, line 85
      def parse!(args)
        @args = args
        @expanded_args = @args.dup

        @args.extend(::OptionParser::Arguable)

        @args.options do |opts|
          opts.banner = ["Usage: cucumber [options] [ [FILE|DIR|URL][:LINE[:LINE]*] ]+", "",
            "Examples:",
            "cucumber examples/i18n/en/features",
            "cucumber @features.txt (See --format rerun)",
            "cucumber --language it examples/i18n/it/features/somma.feature:6:98:113",
            "cucumber -s -i http://rubyurl.com/eeCl", "", "",
          ].join("\n")
          opts.on("-r LIBRARY|DIR", "--require LIBRARY|DIR",
            "Require files before executing the features. If this",
            "option is not specified, all *.rb files that are",
            "siblings or below the features will be loaded auto-",
            "matically. Automatic loading is disabled when this",
            "option is specified, and all loading becomes explicit.",
            "Files under directories named \"support\" are always",
            "loaded first.",
            "This option can be specified multiple times.") do |v|
            @options[:require] << v
          end
          opts.on("-l LANG", "--language LANG",
            "Specify language for features (Default: #{@options[:lang]})",
            %{Run with "--language help" to see all languages},
            %{Run with "--language LANG help" to list keywords for LANG}) do |v|
            if v == 'help'
              list_languages_and_exit
            elsif args==['help'] # I think this conditional is just cruft and can be removed
              list_keywords_and_exit(v)
            else
              @options[:lang] = v
            end
          end
          opts.on("-f FORMAT", "--format FORMAT",
            "How to format features (Default: pretty). Available formats:",
            *FORMAT_HELP) do |v|
            @options[:formats] << [v, @out_stream]
          end
          opts.on("-o", "--out [FILE|DIR]",
            "Write output to a file/directory instead of STDOUT. This option",
            "applies to the previously specified --format, or the",
            "default format if no format is specified. Check the specific",
            "formatter's docs to see whether to pass a file or a dir.") do |v|
            @options[:formats] << ['pretty', nil] if @options[:formats].empty?
            @options[:formats][-1][1] = v
          end
          opts.on("-t TAGS", "--tags TAGS",
            "Only execute the features or scenarios with the specified tags.",
            "TAGS must be comma-separated without spaces. Example: --tags @dev\n",
            "Negative tags: Prefix tags with ~ to exclude features or scenarios",
            "having that tag. Example: --tags ~@slow\n",
            "Limit WIP: Positive tags can be given a threshold to limit the",
            "number of occurrences. Example: --tags @qa:3 will fail if there",
            "are more than 3 occurrences of the @qa tag.") do |v|
            tag_names = parse_tags(v)
            @options[:tag_names].merge!(tag_names)
          end
          opts.on("-n NAME", "--name NAME",
            "Only execute the feature elements which match part of the given name.",
            "If this option is given more than once, it will match against all the",
            "given names.") do |v|
            @options[:name_regexps] << /#{v}/
          end
          opts.on("-e", "--exclude PATTERN", "Don't run feature files or require ruby files matching PATTERN") do |v|
            @options[:excludes] << Regexp.new(v)
          end
          opts.on(PROFILE_SHORT_FLAG, "#{PROFILE_LONG_FLAG} PROFILE", 
              "Pull commandline arguments from cucumber.yml which can be defined as",
              "strings or arrays.  When a 'default' profile is defined and no profile",
              "is specified it is always used. (Unless disabled, see -P below.)",
              "When feature files are defined in a profile and on the command line",
              "then only the ones from the command line are used.") do |v|
            @profiles << v
          end
          opts.on(NO_PROFILE_SHORT_FLAG, NO_PROFILE_LONG_FLAG,
            "Disables all profile laoding to avoid using the 'default' profile.") do |v|
            @disable_profile_loading = true
          end
          opts.on("-c", "--[no-]color",
            "Whether or not to use ANSI color in the output. Cucumber decides",
            "based on your platform and the output destination if not specified.") do |v|
            Term::ANSIColor.coloring = v
          end
          opts.on("-d", "--dry-run", "Invokes formatters without executing the steps.",
            "This also omits the loading of your support/env.rb file if it exists.",
            "Implies --quiet.") do
            @options[:dry_run] = true
            @quiet = true
          end
          opts.on("-a", "--autoformat DIRECTORY",
            "Reformats (pretty prints) feature files and write them to DIRECTORY.",
            "Be careful if you choose to overwrite the originals.",
            "Implies --dry-run --formatter pretty.") do |directory|
            @options[:autoformat] = directory
            Term::ANSIColor.coloring = false
            @options[:dry_run] = true
            @quiet = true
          end

          opts.on("-m", "--no-multiline",
            "Don't print multiline strings and tables under steps.") do
            @options[:no_multiline] = true
          end
          opts.on("-s", "--no-source",
            "Don't print the file and line of the step definition with the steps.") do
            @options[:source] = false
          end
          opts.on("-i", "--no-snippets", "Don't print snippets for pending steps.") do
            @options[:snippets] = false
          end
          opts.on("-q", "--quiet", "Alias for --no-snippets --no-source.") do
            @quiet = true
          end
          opts.on("-b", "--backtrace", "Show full backtrace for all errors.") do
            Cucumber.use_full_backtrace = true
          end
          opts.on("-S", "--strict", "Fail if there are any undefined steps.") do
            @options[:strict] = true
          end
          opts.on("-w", "--wip", "Fail if there are any passing scenarios.") do
            @options[:wip] = true
          end
          opts.on("-v", "--verbose", "Show the files and features loaded.") do
            @options[:verbose] = true
          end
          opts.on("-g", "--guess", "Guess best match for Ambiguous steps.") do
            @options[:guess] = true
          end
          opts.on("-x", "--expand", "Expand Scenario Outline Tables in output.") do
            @options[:expand] = true
          end
          opts.on("--no-diff", "Disable diff output on failing expectations.") do
            @options[:diff_enabled] = false
          end
          opts.on(DRB_FLAG, "Run features against a DRb server. (i.e. with the spork gem)") do
            @options[:drb] = true
          end
          opts.on("--port PORT", "Specify DRb port.  Ignored without --drb") do |port|
            @options[:drb_port] = port
          end
          opts.on_tail("--version", "Show version.") do
            @out_stream.puts VERSION::STRING
            Kernel.exit
          end
          opts.on_tail("-h", "--help", "You're looking at it.") do
            @out_stream.puts opts.help
            Kernel.exit
          end
        end.parse!
 
        if @quiet
          @options[:snippets] = @options[:source] = false
        else
          @options[:snippets] = true if @options[:snippets].nil?
          @options[:source]   = true if @options[:source].nil?
        end

        extract_environment_variables
        @options[:paths] = @args.dup #whatver is left over

        merge_profiles
        print_profile_information

        self
      end