class IRB::Irb

def evaluate_line(line, line_no)
  # Transform a non-identifier alias (@, $) or keywords (next, break)
  command, args = line.split(/\s/, 2)
  if original = @context.command_aliases[command.to_sym]
    line = line.gsub(/\A#{Regexp.escape(command)}/, original.to_s)
    command = original
  end
  # Hook command-specific transformation
  command_class = ExtendCommandBundle.load_command(command)
  if command_class&.respond_to?(:transform_args)
    line = "#{command} #{command_class.transform_args(args)}"
  end
  @context.evaluate(line, line_no)
end