init_config

# File lib/irb/init.rb, line 29
  def IRB.init_config(ap_path)
    # class instance variables
    @TRACER_INITIALIZED = false

    # default configurations
    unless ap_path and @CONF[:AP_NAME]
      ap_path = File.join(File.dirname(File.dirname(__FILE__)), "irb.rb")
    end
    @CONF[:AP_NAME] = File::basename(ap_path, ".rb")

    @CONF[:IRB_NAME] = "irb"
    @CONF[:IRB_LIB_PATH] = File.dirname(__FILE__)

    @CONF[:RC] = true
    @CONF[:LOAD_MODULES] = []
    @CONF[:IRB_RC] = nil

    @CONF[:USE_READLINE] = false unless defined?(ReadlineInputMethod)
    @CONF[:INSPECT_MODE] = true
    @CONF[:USE_TRACER] = false
    @CONF[:USE_LOADER] = false
    @CONF[:IGNORE_SIGINT] = true
    @CONF[:IGNORE_EOF] = false
    @CONF[:ECHO] = nil
    @CONF[:VERBOSE] = nil

    @CONF[:EVAL_HISTORY] = nil
    @CONF[:SAVE_HISTORY] = nil

    @CONF[:BACK_TRACE_LIMIT] = 16

    @CONF[:PROMPT] = {
      :NULL => {
        :PROMPT_I => nil,
        :PROMPT_N => nil,
        :PROMPT_S => nil,
        :PROMPT_C => nil,
        :RETURN => "%s\n"
      },
      :DEFAULT => {
        :PROMPT_I => "%N(%m):%03n:%i> ",
        :PROMPT_N => "%N(%m):%03n:%i> ",
        :PROMPT_S => "%N(%m):%03n:%i%l ",
        :PROMPT_C => "%N(%m):%03n:%i* ",
        :RETURN => "=> %s\n"
      },
      :CLASSIC => {
        :PROMPT_I => "%N(%m):%03n:%i> ",
        :PROMPT_N => "%N(%m):%03n:%i> ",
        :PROMPT_S => "%N(%m):%03n:%i%l ",
        :PROMPT_C => "%N(%m):%03n:%i* ",
        :RETURN => "%s\n"
      },
      :SIMPLE => {
        :PROMPT_I => ">> ",
        :PROMPT_N => ">> ",
        :PROMPT_S => nil,
        :PROMPT_C => "?> ",
        :RETURN => "=> %s\n"
      },
      :INF_RUBY => {
        :PROMPT_I => "%N(%m):%03n:%i> ",
        :PROMPT_N => nil,
        :PROMPT_S => nil,
        :PROMPT_C => nil,
        :RETURN => "%s\n",
        :AUTO_INDENT => true
      },
      :XMP => {
        :PROMPT_I => nil,
        :PROMPT_N => nil,
        :PROMPT_S => nil,
        :PROMPT_C => nil,
        :RETURN => "    ==>%s\n"
      }
    }

    @CONF[:PROMPT_MODE] = (STDIN.tty? ? :DEFAULT : :NULL)
    @CONF[:AUTO_INDENT] = false

    @CONF[:CONTEXT_MODE] = 3 # use binding in function on TOPLEVEL_BINDING
    @CONF[:SINGLE_IRB] = false

    @CONF[:LC_MESSAGES] = Locale.new

    @CONF[:AT_EXIT] = []

    @CONF[:DEBUG_LEVEL] = 0
  end