Added thirdparty: boost library

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

@@ -0,0 +1,108 @@
+//
+// 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/http_proto
+//
+
+#ifndef BOOST_URL_GRAMMAR_TOKEN_RULE_HPP
+#define BOOST_URL_GRAMMAR_TOKEN_RULE_HPP
+
+#include <boost/url/detail/config.hpp>
+#include <boost/url/grammar/charset.hpp>
+#include <boost/url/error_types.hpp>
+#include <boost/core/detail/string_view.hpp>
+
+namespace boost {
+namespace urls {
+namespace grammar {
+
+/** Match a non-empty string of characters from a set
+
+    If there is no more input, the error code
+    @ref error::need_more is returned.
+
+    @par Value Type
+    @code
+    using value_type = core::string_view;
+    @endcode
+
+    @par Example
+    Rules are used with the function @ref parse.
+    @code
+    system::result< core::string_view > rv = parse( "abcdef", token_rule( alpha_chars ) );
+    @endcode
+
+    @par BNF
+    @code
+    token     = 1*( ch )
+    @endcode
+
+    @param cs The character set to use
+
+    @see
+        @ref alpha_chars,
+        @ref parse.
+*/
+#ifdef BOOST_URL_DOCS
+template<class CharSet>
+constexpr
+__implementation_defined__
+token_rule(
+    CharSet cs) noexcept;
+#else
+template<class CharSet>
+struct token_rule_t
+{
+    using value_type = core::string_view;
+
+    static_assert(
+        is_charset<CharSet>::value,
+        "CharSet requirements not met");
+
+    auto
+    parse(
+        char const*& it,
+        char const* end
+            ) const noexcept ->
+        system::result<value_type>;
+
+private:
+    template<class CharSet_>
+    friend
+    constexpr
+    auto
+    token_rule(
+        CharSet_ const&) noexcept ->
+            token_rule_t<CharSet_>;
+
+    constexpr
+    token_rule_t(
+        CharSet const& cs) noexcept
+        : cs_(cs)
+    {
+    }
+
+    CharSet const cs_;
+};
+
+template<class CharSet>
+constexpr
+auto
+token_rule(
+    CharSet const& cs) noexcept ->
+        token_rule_t<CharSet>
+{
+    return {cs};
+}
+#endif
+
+} // grammar
+} // urls
+} // boost
+
+#include <boost/url/grammar/impl/token_rule.hpp>
+
+#endif