From catalog/rfc9110-http.abnf rule: Vary

Definition

Vary = *("*" / field-name)

field-name = token

token = 1*tchar

tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~" / DIGIT / ALPHA

    

Info

Rulename
Vary
Dependencies
ALPHA, DIGIT, tchar, token, field-name, Vary
Used Builtins
ALPHA, DIGIT

Alphabet

Translations

Railroad Diagram

Vary * field-name

Swift Regular Expression

|\*|([!#-'+\--.0-9A-Z\^-z|~]|\*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*

POSIX Extended Regular Expression

|\*|([!#-'+\--.0-9A-Z\^-z|~]|\*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*