类 IRB::ColorPrinter

# File lib/irb/color_printer.rb, line 11
def pp(obj, out = $>, width = screen_width)
  q = ColorPrinter.new(out, width)
  q.guard_inspect_key {q.pp obj}
  q.flush
  out << "\n"
end

# File lib/irb/color_printer.rb, line 20
def screen_width
  Reline.get_screen_size.last
rescue Errno::EINVAL # in `winsize': Invalid argument - <STDIN>
  79
end

# File lib/irb/color_printer.rb, line 27
def pp(obj)
  if String === obj
    # Avoid calling Ruby 2.4+ String#pretty_print that splits a string by "\n"
    text(obj.inspect)
  elsif !METHOD_RESPOND_TO.bind(obj).call(:inspect)
    text(METHOD_INSPECT.bind(obj).call)
  else
    super
  end
end

# File lib/irb/color_printer.rb, line 38
def text(str, width = nil)
  unless str.is_a?(String)
    str = str.inspect
  end
  width ||= str.length

  case str
  when ''
  when ',', '=>', '[', ']', '{', '}', '..', '...', /\A@\w+\z/
    super(str, width)
  when /\A#</, '=', '>'
    super(Color.colorize(str, [:GREEN]), width)
  else
    super(Color.colorize_code(str, ignore_error: true), width)
  end
end