From catalog/rfc9110-http.abnf rule: Proxy-Authenticate

Definition

Proxy-Authenticate = *challenge

challenge = auth-scheme [1*SP (token68 / #auth-param)]

token68 = 1*(ALPHA / DIGIT / "-" / "." / "_" / "~" / "+" / "/") *"="

auth-scheme = token

auth-param = token BWS "=" BWS (token / quoted-string)

token = 1*tchar

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

quoted-string = DQUOTE *(qdtext / quoted-pair) DQUOTE

quoted-pair = "\" (HTAB / SP / VCHAR / obs-text)

qdtext = HTAB / SP / %x21 / %x23-5b / %x5d-7e / obs-text

obs-text = %x80-ff

BWS = OWS

OWS = *(SP / HTAB)

Info

Rulename
Proxy-Authenticate
Dependencies
SP, HTAB, OWS, BWS, DQUOTE, obs-text, qdtext, VCHAR, quoted-pair, quoted-string, ALPHA, DIGIT, tchar, token, auth-param, auth-scheme, token68, challenge, Proxy-Authenticate
Used Builtins
ALPHA, DIGIT, DQUOTE, HTAB, SP, VCHAR

Alphabet

Translations

Railroad Diagram

Proxy-Authenticate challenge

Swift Regular Expression

|[!#-'*-+\--.0-9A-Z\^-z|~][!#-'*-+\--.0-9A-Z\^-z|~]*|[!#-'*-+\--.0-9A-Z\^-z|~][!#-'*-+\--.0-9A-Z\^-z|~]* ( |([!#-'*-+\--.0-9A-Z\^-z|~]|//*([!#-'*-+\--.0-9A-Z\^-z|~]|==*[!#-'*-+\--.0-9A-Z\^-z|~]))[!#-'*-+\--.0-9A-Z\^-z|~]* |((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"))((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"))*[!#-'*-+\--.0-9A-Z\^-z|~][!#-'*-+\--.0-9A-Z\^-z|~]* )*(|//*(|==*)|([!#-'*-+\--.0-9A-Z\^-z|~]|//*([!#-'*-+\--.0-9A-Z\^-z|~]|==*[!#-'*-+\--.0-9A-Z\^-z|~]))[!#-'*-+\--.0-9A-Z\^-z|~]*|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*|((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"))((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"))*(|[!#-'*-+\--.0-9A-Z\^-z|~][!#-'*-+\--.0-9A-Z\^-z|~]*|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*))

POSIX Extended Regular Expression

|[!#-'*-+\--.0-9A-Z\^-z|~][!#-'*-+\--.0-9A-Z\^-z|~]*|[!#-'*-+\--.0-9A-Z\^-z|~][!#-'*-+\--.0-9A-Z\^-z|~]* ( |([!#-'*-+\--.0-9A-Z\^-z|~]|//*([!#-'*-+\--.0-9A-Z\^-z|~]|==*[!#-'*-+\--.0-9A-Z\^-z|~]))[!#-'*-+\--.0-9A-Z\^-z|~]* |((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|\u{9}[\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])([!#-'*-+\--.0-9A-Z\^-z|~]|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*=[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]))*((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*")|(,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\|[\u{9} ][\u{9} ]*=[\u{9} ]*"[\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)([\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*\\)*[\u{9} -~\u{80}-\u{FF}][\u{9} -!#-\[\]-~\u{80}-\u{FF}]*"))((,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~]|[\u{9} ][\u{9} ]*,[\u{9} ]*[!#-'*-+\--.0-9A-Z\^-z|~])[!#-'*-+\--.0-9A-Z\^-z|~]*(=[\u{9} ]*"[\u{9} 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