chars = [backspace,tab,space,zero,lower_a,upper_a,delete,
        right_pointing_double_angle_quotation_mark,
        greek_capital_letter_alpha,
        bengali_digit_zero,
        en_space,
        gothic_letter_ahsa,
        monospaced_digit_zero
        ]
chars = [backspace,tab,space,zero,lower_a,upper_a,delete,
        right_pointing_double_angle_quotation_mark,
        greek_capital_letter_alpha,
        bengali_digit_zero,
        en_space,
        gothic_letter_ahsa,
        monospaced_digit_zero
        ]
chars = [backspace,tab,space,zero,lower_a,upper_a,delete,
        right_pointing_double_angle_quotation_mark,
        greek_capital_letter_alpha,
        bengali_digit_zero,
        en_space,
        gothic_letter_ahsa,
        monospaced_digit_zero
        ]