Added thirdparty: boost library

thirdparty/include/boost/url/rfc/detail/host_rule.hpp

@@ -0,0 +1,64 @@
+//
+// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+// Official repository: https://github.com/boostorg/url
+//
+
+#ifndef BOOST_URL_RFC_DETAIL_HOST_RULE_HPP
+#define BOOST_URL_RFC_DETAIL_HOST_RULE_HPP
+
+#include <boost/url/host_type.hpp>
+#include <boost/url/error_types.hpp>
+#include <boost/url/pct_string_view.hpp>
+#include <boost/url/ipv4_address.hpp>
+#include <boost/url/ipv6_address.hpp>
+
+namespace boost {
+namespace urls {
+namespace detail {
+
+/** Rule for host
+
+    @par BNF
+    @code
+    host          = IP-literal / IPv4address / reg-name
+    @endcode
+
+    @par Specification
+    @li <a href="https://datatracker.ietf.org/doc/html/rfc3986#section-3.2.2"
+        >3.2.2. Host (rfc3986)</a>
+
+    @see
+        @ref host_type,
+        @ref ipv4_address,
+        @ref ipv6_address.
+*/
+struct host_rule_t
+{
+    struct value_type
+    {
+        urls::host_type host_type =
+            urls::host_type::none;
+        core::string_view match;
+        unsigned char addr[16] = {};
+        pct_string_view name;
+    };
+
+    auto
+    parse(
+        char const*& it,
+        char const* end
+            ) const noexcept ->
+        system::result<value_type>;
+};
+
+constexpr host_rule_t host_rule{};
+
+} // detail
+} // urls
+} // boost
+
+#endif