From catalog/rfc9110-http.abnf rule: transfer-coding

Definition

transfer-coding = token *(OWS ";" OWS transfer-parameter)

transfer-parameter = token BWS "=" BWS (token / quoted-string)

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

token = 1*tchar

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

OWS = *(SP / HTAB)

Info

Rulename
transfer-coding
Dependencies
HTAB, SP, OWS, ALPHA, DIGIT, tchar, token, BWS, DQUOTE, obs-text, qdtext, VCHAR, quoted-pair, quoted-string, transfer-parameter, transfer-coding
Used Builtins
ALPHA, DIGIT, DQUOTE, HTAB, SP, VCHAR

Alphabet

Translations

Railroad Diagram

transfer-coding token OWS ; OWS transfer-parameter

Swift Regular Expression

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

POSIX Extended Regular Expression

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