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- ; FIXME:
- DQUOTE= %x22 ; " (Double Quote)
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;
- ; URI (2396) - ABNF
- ;
- ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
- ;;;; 1.6. Syntax Notation and Common Elements
- alpha = lowalpha / upalpha
- lowalpha = "a" / "b" / "c" / "d" / "e" / "f" / "g" / "h" / "i" / "j" / "k" / "l" / "m" / "n" / "o" / "p" / "q" / "r" / "s" / "t" / "u" / "v" / "w" / "x" / "y" / "z"
- upalpha = "A" / "B" / "C" / "D" / "E" / "F" / "G" / "H" / "I" / "J" / "K" / "L" / "M" / "N" / "O" / "P" / "Q" / "R" / "S" / "T" / "U" / "V" / "W" / "X" / "Y" / "Z"
- digit = "0" / "1" / "2" / "3" / "4" / "5" / "6" / "7" / "8" / "9"
- alphanum = alpha / digit
- ;;;; 2. URI Characters and Escape Sequences
- urlc = reserved / unreserved / escaped
- ;;;; 2.2. Reserved Characters
- reserved = ";" / "/" / "?" / ":" / "@" / "&" / "=" / "+" / "$" / ","
- ;;;; 2.3. Unreserved Characters
- unreserved = alphanum / mark
- mark = "-" / "_" / "." / "!" / "~" / "*" / "'" / "(" / ")"
- ;;;; 2.4.1. Escaped Encoding
- escaped = "%" hex hex
- hex = digit / "A" / "B" / "C" / "D" / "E" / "F" / "a" / "b" / "c" / "d" / "e" / "f"
- ;;;; 2.4.3. Excluded US-ASCII Characters
- control = %x00-1F / %x7F ;<US-ASCII coded characters 00-1F and 7F hexadecimal>
- space = %x20 ;<US-ASCII coded character 20 hexadecimal>
- delims = "<" / ">" / "#" / "%" / DQUOTE
- unwise = "{" / "}" / "/" / "\" / "^" / "[" / "]" / "`"
- ;;;; 3. URI Syntactic Components
- absoluteURI = scheme ":" ( hier-part / opaque-part )
- hier-part = ( net-path / abs-path ) [ "?" query ]
- net-path = "//" authority [ abs-path ]
- abs-path = "/" path-segments
- opaque-part = urlc-no-slash *urlc
- urlc-no-slash = unreserved / escaped / ";" / "?" / ":" / "@" / "&" / "=" / "+" / "$" / ","
- ;;;; 3.1. Scheme Component
- scheme = alpha *( alpha / digit / "+" / "-" / "." )
- ;;;; 3.2. Authority Component
- authority = server / reg-name
- ;;;; Registry-based Naming Authority
- reg-name = 1*( unreserved / escaped / "$" / "," / ";" / ":" / "@" / "&" / "=" / "+" )
- ;;;; 3.2.2. Server-based Naming Authority
- server = [ [ userinfo "@" ] hostport ]
- userinfo = *( unreserved / escaped / ";" / ":" / "&" / "=" / "+" / "$" / "," )
- hostport = host [ ":" port ]
- host = hostname / IPv4address
- hostname = *( domainlabel "." ) toplabel [ "." ]
- domainlabel = alphanum / alphanum *( alphanum / "-" ) alphanum
- toplabel = alpha / alpha *( alphanum / "-" ) alphanum
- IPv4address = 1*digit "." 1*digit "." 1*digit "." 1*digit
- port = *digit
- ;;;; 3.3. Path Component
- path = [ abs-path / opaque-part ]
- path-segments = segment *( "/" segment )
- segment = *pchar *( ";" param )
- param = *pchar
- pchar = unreserved / escaped / ":" / "@" / "&" / "=" / "+" / "$" / ","
- ;;;; 3.4. Query Component
- query = *urlc
- ;;;; 4. URI References
- URI-reference = [ absoluteURI / relativeURI ] [ "#" fragment ]
- ;;;; 4.1. Fragment Identifier
- fragment = *urlc
- ;;;; 5. Relative URI References
- relativeURI = ( net-path / abs-path / rel-path ) [ "?" query ]
- rel-path = rel-segment [ abs-path ]
- rel-segment = 1*( unreserved / escaped / ";" / "@" / "&" / "=" / "+" / "$" / "," )
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