    # File lib/rubygems/commands/query_command.rb, line 11
      def initialize(name = 'query',
                     summary = 'Query gem information in local or remote repositories')
        super name, summary,
             :name => //, :domain => :local, :details => false, :versions => true,
             :installed => false, :version => Gem::Requirement.default

        add_option('-i', '--[no-]installed',
                   'Check for installed gem') do |value, options|
          options[:installed] = value
        end

        add_version_option

        add_option('-n', '--name-matches REGEXP',
                   'Name of gem(s) to query on matches the',
                   'provided REGEXP') do |value, options|
          options[:name] = /#{value}/i
        end

        add_option('-d', '--[no-]details',
                   'Display detailed information of gem(s)') do |value, options|
          options[:details] = value
        end

        add_option(      '--[no-]versions',
                   'Display only gem names') do |value, options|
          options[:versions] = value
          options[:details] = false unless value
        end

        add_option('-a', '--all',
                   'Display all gem versions') do |value, options|
          options[:all] = value
        end

        add_local_remote_options
      end