Characters in Unicode marked Hex_Digit=Yes[a]
0123456789ABCDEF Basic Latin, capitals Also ASCII_Hex_Digit=Yes
0123456789abcdef Basic Latin, small letters Also ASCII_Hex_Digit=Yes
0123456789ABCDEF Fullwidth forms, capitals
0123456789abcdef Fullwidth forms, small letters
a. ^ "Unicode 14.0 UCD: PropList.txt". 2021-08-12. Retrieved 2020-03-12.