From catalog/rfc3986-uri.abnf rule: h16
Definition
h16 = 1*4HEXDIG
Info
- Rulename
- h16
- Dependencies
- HEXDIG, h16
- Used Builtins
- HEXDIG
Alphabet
0…9 A…F a…f
Translations
Railroad Diagram
Swift Regular Expression
[0-9A-Fa-f](|[0-9A-Fa-f])|[0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f](|[0-9A-Fa-f])
POSIX Extended Regular Expression
[0-9A-Fa-f](|[0-9A-Fa-f])|[0-9A-Fa-f][0-9A-Fa-f][0-9A-Fa-f](|[0-9A-Fa-f])