# File lib/optparse/ac.rb, line 38
def ac_arg_disable(name, help_string, &block)
  _ac_arg_enable("disable", name, help_string, block)
end

# File lib/optparse/ac.rb, line 34
def ac_arg_enable(name, help_string, &block)
  _ac_arg_enable("enable", name, help_string, block)
end

# File lib/optparse/ac.rb, line 42
def ac_arg_with(name, help_string, &block)
  _check_ac_args(name, block)

  sdesc = []
  ldesc = ["--with-#{name}"]
  desc = [help_string]
  q = name.downcase
  with = Switch::PlacedArgument.new(*search(:atype, String), sdesc, ldesc, nil, desc, block)
  without = Switch::NoArgument.new(nil, proc {}, sdesc, ldesc, nil, desc, block)
  top.append(with, [], ["with-" + q], without, ['without-' + q])
  with
end

# File lib/optparse/ac.rb, line 18
def _ac_arg_enable(prefix, name, help_string, block)
  _check_ac_args(name, block)

  sdesc = []
  ldesc = ["--#{prefix}-#{name}"]
  desc = [help_string]
  q = name.downcase
  ac_block = proc {|val| block.call(ARG_CONV.call(val))}
  enable = Switch::PlacedArgument.new(nil, ARG_CONV, sdesc, ldesc, nil, desc, ac_block)
  disable = Switch::NoArgument.new(nil, proc {false}, sdesc, ldesc, nil, desc, ac_block)
  top.append(enable, [], ["enable-" + q], disable, ['disable-' + q])
  enable
end

# File lib/optparse/ac.rb, line 7
def _check_ac_args(name, block)
  unless /\A\w[-\w]*\z/ =~ name
    raise ArgumentError, name
  end
  unless block
    raise ArgumentError, "no block given", ParseError.filter_backtrace(caller)
  end
end