class Gem::Commands::QueryCommand

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_option('-I', 'Equivalent to --no-installed') do |value, options|
    options[:installed] = false
  end
  add_version_option command, "for use with --installed"
  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_option(      '--[no-]prerelease',
             'Display prerelease versions') do |value, options|
    options[:prerelease] = value
  end
  add_local_remote_options
end