# File lib/pry/pry_instance.rb, line 633
  def incomplete_user_input_exception?(ex)
    case ex.message
    when /unexpected (\$end|end-of-file|END_OF_FILE)/, # mri, jruby, ironruby
        /unterminated (quoted string|string|regexp) meets end of file/, # "quoted string" is ironruby
        /missing 'end' for/, /: expecting '[})\]]'$/, /can't find string ".*" anywhere before EOF/, /expecting keyword_end/ # rbx
      true
    else
      false
    end
  end