rfc2616.abnf.txt   draft-lafon-rfc2616bis-latest.abnf.txt 
OCTET = <any 8-bit sequence of data> OCTET = <any 8-bit sequence of data>
CHAR = <any US-ASCII character (octets 0 - 127)> CHAR = <any US-ASCII character (octets 0 - 127)>
UPALPHA = <any US-ASCII uppercase letter "A".."Z"> UPALPHA = <any US-ASCII uppercase letter "A".."Z">
LOALPHA = <any US-ASCII lowercase letter "a".."z"> LOALPHA = <any US-ASCII lowercase letter "a".."z">
ALPHA = UPALPHA | LOALPHA ALPHA = UPALPHA | LOALPHA
DIGIT = <any US-ASCII digit "0".."9"> DIGIT = <any US-ASCII digit "0".."9">
CTL = <any US-ASCII control character CTL = %x00-1F | %x7F
(octets 0 - 31) and DEL (127)> ; (octets 0 - 31) and DEL (127)
CR = <US-ASCII CR, carriage return (13)> CR = <US-ASCII CR, carriage return (13)>
LF = <US-ASCII LF, linefeed (10)> LF = <US-ASCII LF, linefeed (10)>
SP = <US-ASCII SP, space (32)> SP = <US-ASCII SP, space (32)>
HT = <US-ASCII HT, horizontal-tab (9)> HT = <US-ASCII HT, horizontal-tab (9)>
<"> = <US-ASCII double-quote mark (34)> DQUOTE = <US-ASCII double-quote mark (34)>
CRLF = CR LF CRLF = CR LF
LWS = [CRLF] 1*( SP | HT ) LWS = [CRLF] 1*( SP | HT )
TEXT = <any OCTET except CTLs, TEXT = %x20-7E | %x80-FF | LWS
but including LWS> ; any OCTET except CTLs, but including LWS
HEX = "A" | "B" | "C" | "D" | "E" | "F" HEX = "A" | "B" | "C" | "D" | "E" | "F"
| "a" | "b" | "c" | "d" | "e" | "f" | DIGIT | "a" | "b" | "c" | "d" | "e" | "f" | DIGIT
token = 1*<any CHAR except CTLs or separators> separators = "(" | ")" | "<" | ">" | "@"
separators = "(" | ")" | "<" | ">" | "@" | "," | ";" | ":" | "\" | DQUOTE
| "," | ";" | ":" | "\" | <"> | "/" | "[" | "]" | "?" | "="
| "/" | "[" | "]" | "?" | "=" | "{" | "}" | SP | HT
| "{" | "}" | SP | HT
comment = "(" *( ctext | quoted-pair | comment ) ")" tchar = "!" | "#" | "$" | "%" | "&" | "'" | "*" | "+" | "-"
ctext = <any TEXT excluding "(" and ")"> | "." | "^" | "_" | "`" | "|" | "~" | DIGIT | ALPHA
; any CHAR except CTLs or separators
token = 1*tchar
quoted-string = ( <"> *(qdtext | quoted-pair ) <"> ) comment = "(" *( ctext | quoted-pair | comment ) ")"
qdtext = <any TEXT except <">> ctext = %x20-27 | %x2A-7E | %x80-FF | LWS
; any TEXT excluding "(" and ")"
quoted-pair = "\" CHAR quoted-string = ( DQUOTE *(qdtext | quoted-pair ) DQUOTE )
qdtext = %x20-21 | %x23-5B | %x5D-7E | %x80-FF | LWS
; any TEXT excluding DQUOTE and "\"
HTTP-Version = "HTTP" "/" 1*DIGIT "." 1*DIGIT quoted-pair = "\" CHAR
http_URL = "http:" "//" host [ ":" port ] [ abs_path [ "?" query ]] HTTP-Version = "HTTP" "/" 1*DIGIT "." 1*DIGIT
HTTP-date = rfc1123-date | rfc850-date | asctime-date absoluteURI = <absoluteURI, defined in [RFC2396], Section 3>
rfc1123-date = wkday "," SP date1 SP time SP "GMT" authority = <authority, defined in [RFC2396], Section 3.2>
rfc850-date = weekday "," SP date2 SP time SP "GMT" path-absolute = <abs_path, defined in [RFC2396], Section 3>
asctime-date = wkday SP date3 SP time SP 4DIGIT port = <port, defined in [RFC2396], Section 3.2.2>
date1 = 2DIGIT SP month SP 4DIGIT query = <query, defined in [RFC2396], Section 3.4>
; day month year (e.g., 02 Jun 1982) relativeURI = <relativeURI, defined in [RFC2396], Section 5>
date2 = 2DIGIT "-" month "-" 2DIGIT uri-host = <host, defined in [RFC2396], Section 3.2.2>
; day-month-year (e.g., 02-Jun-82)
date3 = month SP ( 2DIGIT | ( SP 1DIGIT ))
; month day (e.g., Jun 2)
time = 2DIGIT ":" 2DIGIT ":" 2DIGIT
; 00:00:00 - 23:59:59
wkday = "Mon" | "Tue" | "Wed"
| "Thu" | "Fri" | "Sat" | "Sun"
weekday = "Monday" | "Tuesday" | "Wednesday"
| "Thursday" | "Friday" | "Saturday" | "Sunday"
month = "Jan" | "Feb" | "Mar" | "Apr"
| "May" | "Jun" | "Jul" | "Aug"
| "Sep" | "Oct" | "Nov" | "Dec"
delta-seconds = 1*DIGIT http-URL = "http:" "//" uri-host [ ":" port ] [ path-absolute [ "?" query ]]
charset = token HTTP-date = rfc1123-date ; for use in message producers
| obsolete-date ; only allowed in message parsing
obsolete-date = rfc850-date | asctime-date
rfc1123-date = wkday "," SP date1 SP time SP "GMT"
rfc850-date = weekday "," SP date2 SP time SP "GMT"
asctime-date = wkday SP date3 SP time SP 4DIGIT
date1 = 2DIGIT SP month SP 4DIGIT
; day month year (e.g., 02 Jun 1982)
date2 = 2DIGIT "-" month "-" 2DIGIT
; day-month-year (e.g., 02-Jun-82)
date3 = month SP ( 2DIGIT | ( SP 1DIGIT ))
; month day (e.g., Jun 2)
time = 2DIGIT ":" 2DIGIT ":" 2DIGIT
; 00:00:00 - 23:59:59
wkday = "Mon" | "Tue" | "Wed"
| "Thu" | "Fri" | "Sat" | "Sun"
weekday = "Monday" | "Tuesday" | "Wednesday"
| "Thursday" | "Friday" | "Saturday" | "Sunday"
month = "Jan" | "Feb" | "Mar" | "Apr"
| "May" | "Jun" | "Jul" | "Aug"
| "Sep" | "Oct" | "Nov" | "Dec"
content-coding = token delta-seconds = 1*DIGIT
transfer-coding = "chunked" | transfer-extension charset = token
transfer-extension = token *( ";" parameter )
parameter = attribute "=" value content-coding = token
attribute = token
value = token | quoted-string
Chunked-Body = *chunk transfer-coding = "chunked" | transfer-extension
last-chunk transfer-extension = token *( ";" parameter )
trailer
CRLF
chunk = chunk-size [ chunk-extension ] CRLF parameter = attribute "=" value
chunk-data CRLF attribute = token
chunk-size = 1*HEX value = token | quoted-string
last-chunk = 1*("0") [ chunk-extension ] CRLF
chunk-extension= *( ";" chunk-ext-name [ "=" chunk-ext-val ] ) Chunked-Body = *chunk
chunk-ext-name = token last-chunk
chunk-ext-val = token | quoted-string trailer-part
chunk-data = chunk-size(OCTET) CRLF
trailer = *(entity-header CRLF)
media-type = type "/" subtype *( ";" parameter ) chunk = chunk-size [ chunk-extension ] CRLF
type = token chunk-data CRLF
subtype = token chunk-size = 1*HEX
last-chunk = 1*("0") [ chunk-extension ] CRLF
product = token ["/" product-version] chunk-extension= *( ";" chunk-ext-name [ "=" chunk-ext-val ] )
product-version = token chunk-ext-name = token
chunk-ext-val = token | quoted-string
qvalue = ( "0" [ "." 0*3DIGIT ] ) chunk-data = 1*OCTET ; a sequence of chunk-size octets
| ( "1" [ "." 0*3("0") ] )
language-tag = primary-tag *( "-" subtag ) trailer-part = *(entity-header CRLF)
primary-tag = 1*8ALPHA
subtag = 1*8ALPHA
entity-tag = [ weak ] opaque-tag media-type = type "/" subtype *( ";" parameter )
weak = "W/" type = token
opaque-tag = quoted-string subtype = token
range-unit = bytes-unit | other-range-unit product = token ["/" product-version]
bytes-unit = "bytes" product-version = token
other-range-unit = token
HTTP-message = Request | Response ; HTTP/1.1 messages qvalue = ( "0" [ "." 0*3DIGIT ] )
| ( "1" [ "." 0*3("0") ] )
generic-message = start-line language-tag = primary-tag *( "-" subtag )
*(message-header CRLF) primary-tag = 1*8ALPHA
CRLF subtag = 1*8ALPHA
[ message-body ]
start-line = Request-Line | Status-Line
message-header = field-name ":" [ field-value ] Language-Tag = <defined in [RFC4646], Section 2.1>
field-name = token
field-value = *( field-content | LWS )
field-content = <the OCTETs making up the field-value
and consisting of either *TEXT or combinations
of token, separators, and quoted-string>
message-body = entity-body entity-tag = [ weak ] opaque-tag
| <entity-body encoded as per Transfer-Encoding> weak = "W/"
opaque-tag = quoted-string
general-header = Cache-Control ; Section 14.9 range-unit = bytes-unit | other-range-unit
| Connection ; Section 14.10 bytes-unit = "bytes"
| Date ; Section 14.18 other-range-unit = token
| Pragma ; Section 14.32
| Trailer ; Section 14.40
| Transfer-Encoding ; Section 14.41
| Upgrade ; Section 14.42
| Via ; Section 14.45
| Warning ; Section 14.46
Request = Request-Line ; Section 5.1 HTTP-message = Request | Response ; HTTP/1.1 messages
*(( general-header ; Section 4.5
| request-header ; Section 5.3
| entity-header ) CRLF) ; Section 7.1
CRLF
[ message-body ] ; Section 4.3
Request-Line = Method SP Request-URI SP HTTP-Version CRLF generic-message = start-line
*(message-header CRLF)
CRLF
[ message-body ]
start-line = Request-Line | Status-Line
Method = "OPTIONS" ; Section 9.2 message-header = field-name ":" [ field-value ]
| "GET" ; Section 9.3 field-name = token
| "HEAD" ; Section 9.4 field-value = *( field-content | LWS )
| "POST" ; Section 9.5 field-content = <field content>
| "PUT" ; Section 9.6 ; the OCTETs making up the field-value
| "DELETE" ; Section 9.7 ; and consisting of either *TEXT or combinations
| "TRACE" ; Section 9.8 ; of token, separators, and quoted-string
| "CONNECT" ; Section 9.9
| extension-method
extension-method = token
Request-URI = "*" | absoluteURI | abs_path | authority message-body = entity-body
| <entity-body encoded as per Transfer-Encoding>
request-header = Accept ; Section 14.1 general-header = Cache-Control ; Section 14.9
| Accept-Charset ; Section 14.2 | Connection ; Section 14.10
| Accept-Encoding ; Section 14.3 | Date ; Section 14.18
| Accept-Language ; Section 14.4 | Pragma ; Section 14.32
| Authorization ; Section 14.8 | Trailer ; Section 14.40
| Expect ; Section 14.20 | Transfer-Encoding ; Section 14.41
| From ; Section 14.22 | Upgrade ; Section 14.42
| Host ; Section 14.23 | Via ; Section 14.45
| If-Match ; Section 14.24 | Warning ; Section 14.46
| If-Modified-Since ; Section 14.25
| If-None-Match ; Section 14.26
| If-Range ; Section 14.27
| If-Unmodified-Since ; Section 14.28
| Max-Forwards ; Section 14.31
| Proxy-Authorization ; Section 14.34
| Range ; Section 14.35
| Referer ; Section 14.36
| TE ; Section 14.39
| User-Agent ; Section 14.43
Response = Status-Line ; Section 6.1 Request = Request-Line ; Section 5.1
*(( general-header ; Section 4.5 *(( general-header ; Section 4.5
| response-header ; Section 6.2 | request-header ; Section 5.3
| entity-header ) CRLF) ; Section 7.1 | entity-header ) CRLF) ; Section 7.1
CRLF CRLF
[ message-body ] ; Section 7.2 [ message-body ] ; Section 4.3
Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF Request-Line = Method SP Request-URI SP HTTP-Version CRLF
Status-Code = Method = "OPTIONS" ; Section 9.2
"100" ; Section 10.1.1: Continue | "GET" ; Section 9.3
| "101" ; Section 10.1.2: Switching Protocols | "HEAD" ; Section 9.4
| "200" ; Section 10.2.1: OK | "POST" ; Section 9.5
| "201" ; Section 10.2.2: Created | "PUT" ; Section 9.6
| "202" ; Section 10.2.3: Accepted | "DELETE" ; Section 9.7
| "203" ; Section 10.2.4: Non-Authoritative Information | "TRACE" ; Section 9.8
| "204" ; Section 10.2.5: No Content | "CONNECT" ; Section 9.9
| "205" ; Section 10.2.6: Reset Content | extension-method
| "206" ; Section 10.2.7: Partial Content extension-method = token
| "300" ; Section 10.3.1: Multiple Choices
| "301" ; Section 10.3.2: Moved Permanently
| "302" ; Section 10.3.3: Found
| "303" ; Section 10.3.4: See Other
| "304" ; Section 10.3.5: Not Modified
| "305" ; Section 10.3.6: Use Proxy
| "307" ; Section 10.3.8: Temporary Redirect
| "400" ; Section 10.4.1: Bad Request
| "401" ; Section 10.4.2: Unauthorized
| "402" ; Section 10.4.3: Payment Required
| "403" ; Section 10.4.4: Forbidden
| "404" ; Section 10.4.5: Not Found
| "405" ; Section 10.4.6: Method Not Allowed
| "406" ; Section 10.4.7: Not Acceptable
| "407" ; Section 10.4.8: Proxy Authentication Required
| "408" ; Section 10.4.9: Request Time-out
| "409" ; Section 10.4.10: Conflict
| "410" ; Section 10.4.11: Gone
| "411" ; Section 10.4.12: Length Required
| "412" ; Section 10.4.13: Precondition Failed
| "413" ; Section 10.4.14: Request Entity Too Large
| "414" ; Section 10.4.15: Request-URI Too Large
| "415" ; Section 10.4.16: Unsupported Media Type
| "416" ; Section 10.4.17: Requested range not satisfiable
| "417" ; Section 10.4.18: Expectation Failed
| "500" ; Section 10.5.1: Internal Server Error
| "501" ; Section 10.5.2: Not Implemented
| "502" ; Section 10.5.3: Bad Gateway
| "503" ; Section 10.5.4: Service Unavailable
| "504" ; Section 10.5.5: Gateway Time-out
| "505" ; Section 10.5.6: HTTP Version not supported
| extension-code
extension-code = 3DIGIT Request-URI = "*"
Reason-Phrase = *<TEXT, excluding CR, LF> | absoluteURI
| path-absolute [ "?" query ]
| authority
response-header = Accept-Ranges ; Section 14.5 request-header = Accept ; Section 14.1
| Age ; Section 14.6 | Accept-Charset ; Section 14.2
| ETag ; Section 14.19 | Accept-Encoding ; Section 14.3
| Location ; Section 14.30 | Accept-Language ; Section 14.4
| Proxy-Authenticate ; Section 14.33 | Authorization ; Section 14.8
| Retry-After ; Section 14.37 | Expect ; Section 14.20
| Server ; Section 14.38 | From ; Section 14.22
| Vary ; Section 14.44 | Host ; Section 14.23
| WWW-Authenticate ; Section 14.47 | If-Match ; Section 14.24
| If-Modified-Since ; Section 14.25
| If-None-Match ; Section 14.26
| If-Range ; Section 14.27
| If-Unmodified-Since ; Section 14.28
| Max-Forwards ; Section 14.31
| Proxy-Authorization ; Section 14.34
| Range ; Section 14.35
| Referer ; Section 14.36
| TE ; Section 14.39
| User-Agent ; Section 14.43
entity-header = Allow ; Section 14.7 Response = Status-Line ; Section 6.1
| Content-Encoding ; Section 14.11 *(( general-header ; Section 4.5
| Content-Language ; Section 14.12 | response-header ; Section 6.2
| Content-Length ; Section 14.13 | entity-header ) CRLF) ; Section 7.1
| Content-Location ; Section 14.14 CRLF
| Content-MD5 ; Section 14.15 [ message-body ] ; Section 7.2
| Content-Range ; Section 14.16
| Content-Type ; Section 14.17
| Expires ; Section 14.21
| Last-Modified ; Section 14.29
| extension-header
extension-header = message-header Status-Line = HTTP-Version SP Status-Code SP Reason-Phrase CRLF
entity-body = *OCTET Status-Code =
"100" ; Section 10.1.1: Continue
| "101" ; Section 10.1.2: Switching Protocols
| "200" ; Section 10.2.1: OK
| "201" ; Section 10.2.2: Created
| "202" ; Section 10.2.3: Accepted
| "203" ; Section 10.2.4: Non-Authoritative Information
| "204" ; Section 10.2.5: No Content
| "205" ; Section 10.2.6: Reset Content
| "206" ; Section 10.2.7: Partial Content
| "300" ; Section 10.3.1: Multiple Choices
| "301" ; Section 10.3.2: Moved Permanently
| "302" ; Section 10.3.3: Found
| "303" ; Section 10.3.4: See Other
| "304" ; Section 10.3.5: Not Modified
| "305" ; Section 10.3.6: Use Proxy
| "307" ; Section 10.3.8: Temporary Redirect
| "400" ; Section 10.4.1: Bad Request
| "401" ; Section 10.4.2: Unauthorized
| "402" ; Section 10.4.3: Payment Required
| "403" ; Section 10.4.4: Forbidden
| "404" ; Section 10.4.5: Not Found
| "405" ; Section 10.4.6: Method Not Allowed
| "406" ; Section 10.4.7: Not Acceptable
| "407" ; Section 10.4.8: Proxy Authentication Required
| "408" ; Section 10.4.9: Request Time-out
| "409" ; Section 10.4.10: Conflict
| "410" ; Section 10.4.11: Gone
| "411" ; Section 10.4.12: Length Required
| "412" ; Section 10.4.13: Precondition Failed
| "413" ; Section 10.4.14: Request Entity Too Large
| "414" ; Section 10.4.15: Request-URI Too Large
| "415" ; Section 10.4.16: Unsupported Media Type
| "416" ; Section 10.4.17: Requested range not satisfiable
| "417" ; Section 10.4.18: Expectation Failed
| "500" ; Section 10.5.1: Internal Server Error
| "501" ; Section 10.5.2: Not Implemented
| "502" ; Section 10.5.3: Bad Gateway
| "503" ; Section 10.5.4: Service Unavailable
| "504" ; Section 10.5.5: Gateway Time-out
| "505" ; Section 10.5.6: HTTP Version not supported
| extension-code
Accept = "Accept" ":" extension-code = 3DIGIT
#( media-range [ accept-params ] ) Reason-Phrase = *( HT | %x20-7E | %x80-FF )
media-range = ( "*/*" response-header = Accept-Ranges ; Section 14.5
| ( type "/" "*" ) | Age ; Section 14.6
| ( type "/" subtype ) | ETag ; Section 14.19
) *( ";" parameter ) | Location ; Section 14.30
accept-params = ";" "q" "=" qvalue *( accept-extension ) | Proxy-Authenticate ; Section 14.33
accept-extension = ";" token [ "=" ( token | quoted-string ) ] | Retry-After ; Section 14.37
| Server ; Section 14.38
| Vary ; Section 14.44
| WWW-Authenticate ; Section 14.47
Accept-Charset = "Accept-Charset" ":" entity-header = Allow ; Section 14.7
1#( ( charset | "*" )[ ";" "q" "=" qvalue ] ) | Content-Encoding ; Section 14.11
| Content-Language ; Section 14.12
| Content-Length ; Section 14.13
| Content-Location ; Section 14.14
| Content-MD5 ; Section 14.15
| Content-Range ; Section 14.16
| Content-Type ; Section 14.17
| Expires ; Section 14.21
| Last-Modified ; Section 14.29
| extension-header
Accept-Encoding = "Accept-Encoding" ":" extension-header = message-header
1#( codings [ ";" "q" "=" qvalue ] )
codings = ( content-coding | "*" )
Accept-Language = "Accept-Language" ":" entity-body = *OCTET
1#( language-range [ ";" "q" "=" qvalue ] )
language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" )
Accept-Ranges = "Accept-Ranges" ":" acceptable-ranges Accept = "Accept" ":"
acceptable-ranges = 1#range-unit | "none" #( media-range [ accept-params ] )
Age = "Age" ":" age-value media-range = ( "*/*"
age-value = delta-seconds | ( type "/" "*" )
| ( type "/" subtype )
) *( ";" parameter )
accept-params = ";" "q" "=" qvalue *( accept-extension )
accept-extension = ";" token [ "=" ( token | quoted-string ) ]
Allow = "Allow" ":" #Method Accept-Charset = "Accept-Charset" ":"
1#( ( charset | "*" ) [ ";" "q" "=" qvalue ] )
Authorization = "Authorization" ":" credentials Accept-Encoding = "Accept-Encoding" ":"
#( codings [ ";" "q" "=" qvalue ] )
codings = ( content-coding | "*" )
Cache-Control = "Cache-Control" ":" 1#cache-directive Accept-Language = "Accept-Language" ":"
1#( language-range [ ";" "q" "=" qvalue ] )
language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" )
cache-directive = cache-request-directive Accept-Ranges = "Accept-Ranges" ":" acceptable-ranges
| cache-response-directive acceptable-ranges = 1#range-unit | "none"
cache-request-directive = Age = "Age" ":" age-value
"no-cache" ; Section 14.9.1 age-value = delta-seconds
| "no-store" ; Section 14.9.2
| "max-age" "=" delta-seconds ; Section 14.9.3, 14.9.4
| "max-stale" [ "=" delta-seconds ] ; Section 14.9.3
| "min-fresh" "=" delta-seconds ; Section 14.9.3
| "no-transform" ; Section 14.9.5
| "only-if-cached" ; Section 14.9.4
| cache-extension ; Section 14.9.6
cache-response-directive = Allow = "Allow" ":" #Method
"public" ; Section 14.9.1
| "private" [ "=" <"> 1#field-name <"> ] ; Section 14.9.1
| "no-cache" [ "=" <"> 1#field-name <"> ]; Section 14.9.1
| "no-store" ; Section 14.9.2
| "no-transform" ; Section 14.9.5
| "must-revalidate" ; Section 14.9.4
| "proxy-revalidate" ; Section 14.9.4
| "max-age" "=" delta-seconds ; Section 14.9.3
| "s-maxage" "=" delta-seconds ; Section 14.9.3
| cache-extension ; Section 14.9.6
cache-extension = token [ "=" ( token | quoted-string ) ] Authorization = "Authorization" ":" credentials
Connection = "Connection" ":" 1#(connection-token) Cache-Control = "Cache-Control" ":" 1#cache-directive
connection-token = token
Content-Encoding = "Content-Encoding" ":" 1#content-coding cache-directive = cache-request-directive
| cache-response-directive
Content-Language = "Content-Language" ":" 1#language-tag cache-request-directive =
"no-cache" ; Section 14.9.1
| "no-store" ; Section 14.9.2
| "max-age" "=" delta-seconds ; Section 14.9.3, 14.9.4
| "max-stale" [ "=" delta-seconds ] ; Section 14.9.3
| "min-fresh" "=" delta-seconds ; Section 14.9.3
| "no-transform" ; Section 14.9.5
| "only-if-cached" ; Section 14.9.4
| cache-extension ; Section 14.9.6
Content-Length = "Content-Length" ":" 1*DIGIT cache-response-directive =
"public" ; Section 14.9.1
| "private" [ "=" DQUOTE 1#field-name DQUOTE ]
; Section 14.9.1
| "no-cache" [ "=" DQUOTE 1#field-name DQUOTE ]
; Section 14.9.1
| "no-store" ; Section 14.9.2
| "no-transform" ; Section 14.9.5
| "must-revalidate" ; Section 14.9.4
| "proxy-revalidate" ; Section 14.9.4
| "max-age" "=" delta-seconds ; Section 14.9.3
| "s-maxage" "=" delta-seconds ; Section 14.9.3
| cache-extension ; Section 14.9.6
Content-Location = "Content-Location" ":" cache-extension = token [ "=" ( token | quoted-string ) ]
( absoluteURI | relativeURI )
Content-MD5 = "Content-MD5" ":" md5-digest Connection = "Connection" ":" 1#(connection-token)
md5-digest = <base64 of 128 bit MD5 digest as per RFC 1864> connection-token = token
Content-Range = "Content-Range" ":" content-range-spec Content-Encoding = "Content-Encoding" ":" 1#content-coding
content-range-spec = byte-content-range-spec Content-Language = "Content-Language" ":" 1#Language-Tag
byte-content-range-spec = bytes-unit SP
byte-range-resp-spec "/"
( instance-length | "*" )
byte-range-resp-spec = (first-byte-pos "-" last-byte-pos) Content-Length = "Content-Length" ":" 1*DIGIT
| "*"
instance-length = 1*DIGIT
Content-Type = "Content-Type" ":" media-type Content-Location = "Content-Location" ":"
( absoluteURI | relativeURI )
Date = "Date" ":" HTTP-date Content-MD5 = "Content-MD5" ":" md5-digest
md5-digest = <base64 of 128 bit MD5 digest as per [RFC1864]>
ETag = "ETag" ":" entity-tag Content-Range = "Content-Range" ":" content-range-spec
Expect = "Expect" ":" 1#expectation content-range-spec = byte-content-range-spec
byte-content-range-spec = bytes-unit SP
byte-range-resp-spec "/"
( instance-length | "*" )
expectation = "100-continue" | expectation-extension byte-range-resp-spec = (first-byte-pos "-" last-byte-pos)
expectation-extension = token [ "=" ( token | quoted-string ) | "*"
*expect-params ] instance-length = 1*DIGIT
expect-params = ";" token [ "=" ( token | quoted-string ) ]
Expires = "Expires" ":" HTTP-date Content-Type = "Content-Type" ":" media-type
From = "From" ":" mailbox Date = "Date" ":" HTTP-date
Host = "Host" ":" host [ ":" port ] ; Section 3.2.2 ETag = "ETag" ":" entity-tag
If-Match = "If-Match" ":" ( "*" | 1#entity-tag ) Expect = "Expect" ":" 1#expectation
If-Modified-Since = "If-Modified-Since" ":" HTTP-date expectation = "100-continue" | expectation-extension
expectation-extension = token [ "=" ( token | quoted-string )
*expect-params ]
expect-params = ";" token [ "=" ( token | quoted-string ) ]
If-None-Match = "If-None-Match" ":" ( "*" | 1#entity-tag ) Expires = "Expires" ":" HTTP-date
If-Range = "If-Range" ":" ( entity-tag | HTTP-date ) From = "From" ":" mailbox
If-Unmodified-Since = "If-Unmodified-Since" ":" HTTP-date Host = "Host" ":" uri-host [ ":" port ] ; Section 3.2.2
Last-Modified = "Last-Modified" ":" HTTP-date If-Match = "If-Match" ":" ( "*" | 1#entity-tag )
Location = "Location" ":" absoluteURI If-Modified-Since = "If-Modified-Since" ":" HTTP-date
Max-Forwards = "Max-Forwards" ":" 1*DIGIT If-None-Match = "If-None-Match" ":" ( "*" | 1#entity-tag )
Pragma = "Pragma" ":" 1#pragma-directive If-Range = "If-Range" ":" ( entity-tag | HTTP-date )
pragma-directive = "no-cache" | extension-pragma
extension-pragma = token [ "=" ( token | quoted-string ) ]
Proxy-Authenticate = "Proxy-Authenticate" ":" 1#challenge If-Unmodified-Since = "If-Unmodified-Since" ":" HTTP-date
Proxy-Authorization = "Proxy-Authorization" ":" credentials Last-Modified = "Last-Modified" ":" HTTP-date
ranges-specifier = byte-ranges-specifier Location = "Location" ":" absoluteURI [ "#" fragment ]
byte-ranges-specifier = bytes-unit "=" byte-range-set
byte-range-set = 1#( byte-range-spec | suffix-byte-range-spec )
byte-range-spec = first-byte-pos "-" [last-byte-pos]
first-byte-pos = 1*DIGIT
last-byte-pos = 1*DIGIT
suffix-byte-range-spec = "-" suffix-length Max-Forwards = "Max-Forwards" ":" 1*DIGIT
suffix-length = 1*DIGIT
Range = "Range" ":" ranges-specifier Pragma = "Pragma" ":" 1#pragma-directive
pragma-directive = "no-cache" | extension-pragma
extension-pragma = token [ "=" ( token | quoted-string ) ]
Referer = "Referer" ":" ( absoluteURI | relativeURI ) Proxy-Authenticate = "Proxy-Authenticate" ":" 1#challenge
Retry-After = "Retry-After" ":" ( HTTP-date | delta-seconds ) Proxy-Authorization = "Proxy-Authorization" ":" credentials
Server = "Server" ":" 1*( product | comment ) ranges-specifier = byte-ranges-specifier
byte-ranges-specifier = bytes-unit "=" byte-range-set
byte-range-set = 1#( byte-range-spec | suffix-byte-range-spec )
byte-range-spec = first-byte-pos "-" [last-byte-pos]
first-byte-pos = 1*DIGIT
last-byte-pos = 1*DIGIT
TE = "TE" ":" #( t-codings ) suffix-byte-range-spec = "-" suffix-length
t-codings = "trailers" | ( transfer-extension [ accept-params ] ) suffix-length = 1*DIGIT
Trailer = "Trailer" ":" 1#field-name Range = "Range" ":" ranges-specifier
Referer = "Referer" ":" ( absoluteURI | relativeURI )
Retry-After = "Retry-After" ":" ( HTTP-date | delta-seconds )
Server = "Server" ":" 1*( product | comment )
TE = "TE" ":" #( t-codings )
t-codings = "trailers" | ( transfer-extension [ accept-params ] )
Trailer = "Trailer" ":" 1#field-name
Transfer-Encoding = "Transfer-Encoding" ":" 1#transfer-coding Transfer-Encoding = "Transfer-Encoding" ":" 1#transfer-coding
Upgrade = "Upgrade" ":" 1#product Upgrade = "Upgrade" ":" 1#product
User-Agent = "User-Agent" ":" 1*( product | comment ) User-Agent = "User-Agent" ":" 1*( product | comment )
Vary = "Vary" ":" ( "*" | 1#field-name ) Vary = "Vary" ":" ( "*" | 1#field-name )
Via = "Via" ":" 1#( received-protocol received-by [ comment ] ) Via = "Via" ":" 1#( received-protocol received-by [ comment ] )
received-protocol = [ protocol-name "/" ] protocol-version received-protocol = [ protocol-name "/" ] protocol-version
protocol-name = token protocol-name = token
protocol-version = token protocol-version = token
received-by = ( host [ ":" port ] ) | pseudonym received-by = ( uri-host [ ":" port ] ) | pseudonym
pseudonym = token pseudonym = token
Warning = "Warning" ":" 1#warning-value Warning = "Warning" ":" 1#warning-value
warning-value = warn-code SP warn-agent SP warn-text warning-value = warn-code SP warn-agent SP warn-text
[SP warn-date] [SP warn-date]
warn-code = 3DIGIT warn-code = 3DIGIT
warn-agent = ( host [ ":" port ] ) | pseudonym warn-agent = ( uri-host [ ":" port ] ) | pseudonym
; the name or pseudonym of the server adding ; the name or pseudonym of the server adding
; the Warning header, for use in debugging ; the Warning header, for use in debugging
warn-text = quoted-string warn-text = quoted-string
warn-date = <"> HTTP-date <"> warn-date = DQUOTE HTTP-date DQUOTE
WWW-Authenticate = "WWW-Authenticate" ":" 1#challenge WWW-Authenticate = "WWW-Authenticate" ":" 1#challenge
MIME-Version = "MIME-Version" ":" 1*DIGIT "." 1*DIGIT MIME-Version = "MIME-Version" ":" 1*DIGIT "." 1*DIGIT
content-disposition = "Content-Disposition" ":" content-disposition = "Content-Disposition" ":"
disposition-type *( ";" disposition-parm ) disposition-type *( ";" disposition-parm )
disposition-type = "attachment" | disp-extension-token disposition-type = "attachment" | disp-extension-token
disposition-parm = filename-parm | disp-extension-parm disposition-parm = filename-parm | disp-extension-parm
filename-parm = "filename" "=" quoted-string filename-parm = "filename" "=" quoted-string
disp-extension-token = token disp-extension-token = token
disp-extension-parm = token "=" ( token | quoted-string ) disp-extension-parm = token "=" ( token | quoted-string )
 End of changes. 104 change blocks. 
342 lines changed or deleted 368 lines changed or added

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