94 lines
3.2 KiB
ABNF
94 lines
3.2 KiB
ABNF
URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ]
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hier-part = "//" authority path-abempty
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/ path-absolute
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/ path-rootless
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/ path-empty
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URI-reference = URI / relative-ref
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absolute-URI = scheme ":" hier-part [ "?" query ]
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relative-ref = relative-part [ "?" query ] [ "#" fragment ]
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relative-part = "//" authority path-abempty
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/ path-absolute
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/ path-noscheme
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/ path-empty
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scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
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authority = [ userinfo "@" ] host [ ":" port ]
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userinfo = *( unreserved / pct-encoded / sub-delims / ":" )
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host = IP-literal / IPv4address / reg-name
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port = *DIGIT
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IP-literal = "[" ( IPv6address / IPvFuture ) "]"
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IPvFuture = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" )
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IPv6address = 6( h16 ":" ) ls32
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/ "::" 5( h16 ":" ) ls32
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/ [ h16 ] "::" 4( h16 ":" ) ls32
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/ [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
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/ [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
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/ [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32
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/ [ *4( h16 ":" ) h16 ] "::" ls32
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/ [ *5( h16 ":" ) h16 ] "::" h16
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/ [ *6( h16 ":" ) h16 ] "::"
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h16 = 1*4HEXDIG
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ls32 = ( h16 ":" h16 ) / IPv4address
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IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet
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Berners-Lee, et al. Standards Track [Page 49]
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RFC 3986 URI Generic Syntax January 2005
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dec-octet = DIGIT ; 0-9
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/ %x31-39 DIGIT ; 10-99
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/ "1" 2DIGIT ; 100-199
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/ "2" %x30-34 DIGIT ; 200-249
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/ "25" %x30-35 ; 250-255
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reg-name = *( unreserved / pct-encoded / sub-delims )
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path = path-abempty ; begins with "/" or is empty
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/ path-absolute ; begins with "/" but not "//"
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/ path-noscheme ; begins with a non-colon segment
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/ path-rootless ; begins with a segment
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/ path-empty ; zero characters
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path-abempty = *( "/" segment )
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path-absolute = "/" [ segment-nz *( "/" segment ) ]
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path-noscheme = segment-nz-nc *( "/" segment )
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path-rootless = segment-nz *( "/" segment )
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path-empty = 0<pchar>
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segment = *pchar
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segment-nz = 1*pchar
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segment-nz-nc = 1*( unreserved / pct-encoded / sub-delims / "@" )
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; non-zero-length segment without any colon ":"
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pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
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query = *( pchar / "/" / "?" )
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fragment = *( pchar / "/" / "?" )
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pct-encoded = "%" HEXDIG HEXDIG
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unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
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reserved = gen-delims / sub-delims
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gen-delims = ":" / "/" / "?" / "#" / "[" / "]" / "@"
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sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
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/ "*" / "+" / "," / ";" / "="
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" # % < > [ \ ] ^ ` { | } |