rfc/detail/scheme_rule.hpp

0001 //
0002 // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
0003 //
0004 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0005 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 //
0007 // Official repository: https://github.com/boostorg/url
0008 //
0009
0010 #ifndef BOOST_URL_RFC_DETAIL_SCHEME_RULE_HPP
0011 #define BOOST_URL_RFC_DETAIL_SCHEME_RULE_HPP
0012
0013 #include <boost/url/detail/config.hpp>
0014 #include <boost/url/error_types.hpp>
0015 #include <boost/url/scheme.hpp>
0016 #include <boost/core/detail/string_view.hpp>
0017
0018 namespace boost {
0019 namespace urls {
0020 namespace detail {
0021
0022 /** Rule for scheme
0023
0024     @par BNF
0025     @code
0026     scheme      = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
0027     @endcode
0028
0029     @par Specification
0030     @li <a href="https://datatracker.ietf.org/doc/html/rfc3986#section-3.1"
0031         >3.1. Scheme (rfc3986)</a>
0032
0033     @see
0034         @ref scheme.
0035 */
0036 struct scheme_rule
0037 {
0038     struct value_type
0039     {
0040         core::string_view scheme;
0041         urls::scheme scheme_id =
0042             urls::scheme::unknown;
0043     };
0044
0045     system::result<value_type>
0046     parse(
0047         char const*& it,
0048         char const* end) const noexcept;
0049 };
0050
0051 } // detail
0052 } // urls
0053 } // boost
0054
0055 #endif