$rfc5024:appendix-b
[\u0020\u0026\u0028-\u0029\u002D-9A-Z]
[\x20\x26\x28-\x29\x2D-9A-Z]
The set definition is contained in sets.json
data file.
U+0020
U+0026
U+0028
U+0029
U+002D
U+002E
U+002F
U+0030
U+0031
U+0032
U+0033
U+0034
U+0035
U+0036
U+0037
U+0038
U+0039
U+0041
U+0042
U+0043
U+0044
U+0045
U+0046
U+0047
U+0048
U+0049
U+004A
U+004B
U+004C
U+004D
U+004E
U+004F
U+0050
U+0051
U+0052
U+0053
U+0054
U+0055
U+0056
U+0057
U+0058
U+0059
U+005A