From catalog/rfc9110-http.abnf rule: ETag
Definition
ETag = entity-tag
entity-tag = [weak] opaque-tag
weak = %s"W/"
opaque-tag = DQUOTE *etagc DQUOTE
etagc = %x21 / %x23-7e / obs-text
obs-text = %x80-ff
Info
- Rulename
- ETag
- Dependencies
- DQUOTE, obs-text, etagc, opaque-tag, weak, entity-tag, ETag
- Used Builtins
- DQUOTE
Alphabet
! #…. 0…V X…~ U+80…U+FF"/W
Translations
Railroad Diagram
Swift Regular Expression
(|W/)"[!#-~\u{80}-\u{FF}]*"
POSIX Extended Regular Expression
(|W/)\x022[!#-~\u{80}-\u{FF}]*\x022