{"custom-charset1", required_argument, 0, IDX_CUSTOM_CHARSET_1},
{"custom-charset2", required_argument, 0, IDX_CUSTOM_CHARSET_2},
{"custom-charset3", required_argument, 0, IDX_CUSTOM_CHARSET_3},
{"custom-charset1", required_argument, 0, IDX_CUSTOM_CHARSET_1},
{"custom-charset2", required_argument, 0, IDX_CUSTOM_CHARSET_2},
{"custom-charset3", required_argument, 0, IDX_CUSTOM_CHARSET_3},