From catalog/rfc9110-http.abnf rule: parameters

Definition

parameters = *( OWS ";" OWS [ parameter ] )

parameter = parameter-name "=" parameter-value

parameter-value = ( 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

parameter-name = token

token = 1*tchar

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

OWS = *( SP / HTAB )

Info

Rulename: parameters
Dependencies: HTAB, SP, OWS, ALPHA, DIGIT, tchar, token, parameter-name, DQUOTE, obs-text, qdtext, VCHAR, quoted-pair, quoted-string, parameter-value, parameter, parameters
Used Builtins: ALPHA, DIGIT, DQUOTE, HTAB, SP, VCHAR

Alphabet

␉ ␠
! #…' *…+ -…. 0…9 A…Z ^…z | ~
"
(…) , / : < >…@ [ ] { } U+80…U+FF
;
=
\

Translations

Railroad Diagram

ECMAScript/JavaScript Regular Expression Literal

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

Swift Regular Expression

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

POSIX Extended Regular Expression

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