?matches at most one character from the set below:
Athe literal A (6510 / 1018 / 4116) (case sensitive)
Bthe literal B (6610 / 1028 / 4216) (case sensitive)
Ethe literal E (6910 / 1058 / 4516) (case sensitive)
Hthe literal H (7210 / 1108 / 4816) (case sensitive)
Mthe literal M (7710 / 1158 / 4D16) (case sensitive)
Nthe literal N (7810 / 1168 / 4E16) (case sensitive)
Pthe literal P (8010 / 1208 / 5016) (case sensitive)
Rthe literal R (8210 / 1228 / 5216) (case sensitive)
Vthe literal V (8610 / 1268 / 5616) (case sensitive)
Wthe literal W (8710 / 1278 / 5716) (case sensitive)
Xthe literal X (8810 / 1308 / 5816) (case sensitive)
Ythe literal Y (8910 / 1318 / 5916) (case sensitive)
0-9one character from 0 (4810) to 9 (5710)