RFC† RFC:3986 Uniform Resource Identifier (URI): Generic Syntax STD: 66、 Updates: 1738、 Obsoletes: 2732, 2396, 1808 [Studying HTTP] によるRFC 3986 の日本語訳 ↑ Collected ABNF for URI (RFC:3986 Appendix A.)† URI = scheme ":" hier-part [ "?" query ] [ "#" fragment ] hier-part = "//" authority path-abempty / path-absolute / path-rootless / path-empty URI-reference = URI / relative-ref absolute-URI = scheme "