Added thirdparty: boost library

thirdparty/include/boost/url/grammar/dec_octet_rule.hpp

@@ -0,0 +1,76 @@
+//
+// 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_GRAMMAR_DEC_OCTET_RULE_HPP
+#define BOOST_URL_GRAMMAR_DEC_OCTET_RULE_HPP
+
+#include <boost/url/detail/config.hpp>
+#include <boost/url/error_types.hpp>
+
+namespace boost {
+namespace urls {
+namespace grammar {
+
+/** Match a decimal octet
+
+    A decimal octet is precise way of
+    saying a number from 0 to 255. These
+    are commonly used in IPv4 addresses.
+
+    @par Value Type
+    @code
+    using value_type = unsigned char;
+    @endcode
+
+    @par Example
+    Rules are used with the function @ref parse.
+    @code
+    system::result< unsigned char > rv = parse( "255", dec_octet_rule );
+    @endcode
+
+    @par BNF
+    @code
+    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
+    @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 parse.
+*/
+#ifdef BOOST_URL_DOCS
+constexpr __implementation_defined__ dec_octet_rule;
+#else
+struct dec_octet_rule_t
+{
+    using value_type = unsigned char;
+
+    BOOST_URL_DECL
+    auto
+    parse(
+        char const*& it,
+        char const* end
+            ) const noexcept ->
+        system::result<value_type>;
+};
+
+constexpr dec_octet_rule_t dec_octet_rule{};
+#endif
+
+} // grammar
+} // urls
+} // boost
+
+#endif