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Subject: RE: [xri] GCS chars and star in XRI authority resolution
Here is an updated ABNF that merges all of the discussion from the mail list into the proposed ABNF for XRI 1.1. I haven't reviewed it completely, but it does validate and seems to capture all of the latest thinking. XRI = absolute-xri / relative-xri absolute-xri = ["xri:"] global-path [ "?" xri-query ] [ "#" xri-fragment ] global-path = authority-path [ local-path ] local-path = "/" relative-path relative-path = xri-segment *( "/" xri-segment ) [ "?" xri-query ] [ "#" xri-fragment ] relative-xri = local-path / relative-path xri-value = global-path / local-path / relative-path authority-path = XRI-authority / IRI-authority XRI-authority = ( gcs-char [ [ "!" / "*" ] nz-segment ] ) / xref-authority gcs-char = "=" / "@" / "+" / "!" / "$" xref-authority = xref *( ( "!" / "*" ) nz-segment ) xref = "(" ( xri-value / IRI ) ")" IRI-authority = "//" iauthority xri-segment = sub-segment *( ( "!" / "*" ) sub-segment ) nz-segment = nz-sub-segment *( ( "!" / "*" ) nz-sub-segment ) sub-segment = ( *xri-pchar / xref ) nz-sub-segment = ( 1*xri-pchar / xref ) xri-pchar = xri-unreserved / pct-encoded / xri-sub-delims xri-query = [ xref ] *( xri-pchar / iprivate / "/" / "?" / ":" / "[" / "]" / "@" / "(" / ")" / "!" / "$" / "*" / "+" / "=" ) xri-fragment = [ xref ] * ( xri-pchar / "/" / "?" / ":" / "[" / "]" / "@" / "(" / ")" / "!" / "$" / "*" / "+" / "=" ) xri-reserved = xri-gen-delims / xri-sub-delims xri-gen-delims = "/" / "?" / "#" / "[" / "]" / "@" / "(" / ")" / "!" / "$" / "+" / "=" / "!" / "#" xri-sub-delims = "&" / ":" / ";" / "," / "'" xri-unreserved = unreserved / ucschar IRI = scheme ":" ihier-part [ "?" iquery ] [ "#" ifragment ] scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." ) ihier-part = "//" iauthority ipath-abempty / ipath-abs / ipath-rootless / ipath-empty iauthority = [ iuserinfo "@" ] ihost [ ":" port ] iuserinfo = *( iunreserved / pct-encoded / sub-delims / ":" ) ihost = IP-literal / IPv4address / ireg-name IP-literal = "[" ( IPv6address / IPvFuture ) "]" IPvFuture = "v" 1*HEXDIG "." 1*( unreserved / sub-delims / ":" ) IPv6address = 6( h16 ":" ) ls32 / "::" 5( h16 ":" ) ls32 / [ h16 ] "::" 4( h16 ":" ) ls32 / [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32 / [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32 / [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32 / [ *4( h16 ":" ) h16 ] "::" ls32 / [ *5( h16 ":" ) h16 ] "::" h16 / [ *6( h16 ":" ) h16 ] "::" ls32 = ( h16 ":" h16 ) / IPv4address h16 = 1*4HEXDIG IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet dec-octet = DIGIT ; 0-9 / %x31-39 DIGIT ; 10-99 / "1" 2DIGIT ; 100-199 / "2" %x30-34 DIGIT ; 200-249 / "25" %x30-35 ; 250-255 ireg-name = *( iunreserved / pct-encoded / sub-delims ) port = *DIGIT ipath-abempty = *( "/" isegment ) ipath-abs = "/" [ isegment-nz *( "/" isegment ) ] ipath-rootless = isegment-nz *( "/" isegment ) ipath-empty = 0<ipchar> isegment = *ipchar isegment-nz = 1*ipchar iquery = *( ipchar / iprivate / "/" / "?" ) iprivate = %xE000-F8FF / %xF0000-FFFFD / %x100000-10FFFD ifragment = *( ipchar / "/" / "?" ) ipchar = iunreserved / pct-encoded / sub-delims / ":" / "@" iunreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" / ucschar pct-encoded = "%" HEXDIG HEXDIG ucschar = %xA0-D7FF / %xF900-FDCF / %xFDF0-FFEF / %x10000-1FFFD / %x20000-2FFFD / %x30000-3FFFD / %x40000-4FFFD / %x50000-5FFFD / %x60000-6FFFD / %x70000-7FFFD / %x80000-8FFFD / %x90000-9FFFD / %xA0000-AFFFD / %xB0000-BFFFD / %xC0000-CFFFD / %xD0000-DFFFD / %xE1000-EFFFD reserved = gen-delims / sub-delims gen-delims = ":" / "/" / "?" / "#" / "[" / "]" / "@" sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "=" unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" > -----Original Message----- > From: Lindelsee, Mike [mailto:mlindels@visa.com] > Sent: Monday, August 23, 2004 4:10 PM > To: xri@lists.oasis-open.org > Subject: RE: [xri] GCS chars and star in XRI authority resolution > > > I'll create an ABNF that merges all of the latest discussion > into the ABNF on the page mentioned below. Not sure where to > put it, so I'll just send it out to the list as a starting point. > > It seems to me that we still have to make some decisions on a > few of the issues (e.g., xri authorities aligining with > 2386bis authorities) before we can consider the ABNF finalized. > > Mike >
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