From catalog/rfc5646-langtag.abnf rule: singleton
Definition
singleton = DIGIT / %x41-57 / %x59-5a / %x61-77 / %x79-7a
Info
- Rulename
- singleton
- Dependencies
- DIGIT, singleton
- Used Builtins
- DIGIT
Alphabet
0…9 A…W Y…Z a…w y…z
Translations
Railroad Diagram
Swift Regular Expression
[0-9A-WY-Za-wy-z]
POSIX Extended Regular Expression
[0-9A-WY-Za-wy-z]