Module: IRB

# File 'lib/irb/easter-egg.rb', line 109

private def easter_egg(type = nil)
  print "\e[?1049h"
  type ||= [:logo, :dancing].sample
  case type
  when :logo
    Pager.page do |io|
      logo_type = STDOUT.external_encoding == Encoding::UTF_8 ? :unicode_large : :ascii_large
      io.write easter_egg_logo(logo_type)
      STDIN.raw { STDIN.getc } if io == STDOUT
    end
  when :dancing
    STDOUT.cooked do
      interrupted = false
      prev_trap = trap("SIGINT") { interrupted = true }
      canvas = Canvas.new(Reline.get_screen_size)
      otio = Reline::IOGate.prep
      Reline::IOGate.set_winch_handler do
        canvas = Canvas.new(Reline.get_screen_size)
      end
      ruby_model = RubyModel.new
      print "\e[?25l" # hide cursor
      (0..).each do |i|
        buff = canvas.draw do
          ruby_model.render_frame(i) do |p1, p2|
            canvas.line(p1, p2)
          end
        end
        buff[0, 20] = "\e[0mPress Ctrl+C to stop\e[31m\e[1m"
        print "\e[H" + buff
        sleep 0.05
        break if interrupted
      end
    rescue Interrupt
    ensure
      Reline::IOGate.deprep(otio)
      print "\e[?25h" # show cursor
      trap("SIGINT", prev_trap)
    end
  end
ensure
  print "\e[0m\e[?1049l"
end

# File 'lib/irb/easter-egg.rb', line 101

private def easter_egg_logo(type)
  @easter_egg_logos ||= File.read(File.join(__dir__, 'ruby_logo.aa'), encoding: 'UTF-8:UTF-8')
    .split(/TYPE: ([A-Z_]+)\n/)[1..]
    .each_slice(2)
    .to_h
  @easter_egg_logos[type.to_s.upcase]
end

# File 'lib/irb/init.rb', line 19

def @CONF.inspect
  array = []
  for k, v in sort{|a1, a2| a1[0].id2name <=> a2[0].id2name}
    case k
    when :MAIN_CONTEXT, :__TMP__EHV__
      array.push format("CONF[:%s]=...myself...", k.id2name)
    when :PROMPT
      s = v.collect{
        |kk, vv|
        ss = vv.collect{|kkk, vvv| ":#{kkk.id2name}=>#{vvv.inspect}"}
        format(":%s=>{%s}", kk.id2name, ss.join(", "))
      }
      array.push format("CONF[:%s]={%s}", k.id2name, s.join(", "))
    else
      array.push format("CONF[:%s]=%s", k.id2name, v.inspect)
    end
  end
  array.join("\n")
end

# File 'lib/irb.rb', line 66

def irb_abort(irb, exception = Abort) # :nodoc:
  irb.context.thread.raise exception, "abort then interrupt!"
end

# File 'lib/irb.rb', line 59

def irb_exit(*) # :nodoc:
  throw :IRB_EXIT, false
end

# File 'lib/irb.rb', line 44

def start(ap_path = nil)
  STDOUT.sync = true
  $0 = File::basename(ap_path, ".rb") if ap_path

  setup(ap_path)

  if @CONF[:SCRIPT]
    irb = Irb.new(nil, @CONF[:SCRIPT])
  else
    irb = Irb.new
  end
  irb.run(@CONF)
end