1   
//
1   
//
2   
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
2   
// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
3   
// Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
3   
// Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
4   
//
4   
//
5   
// Distributed under the Boost Software License, Version 1.0. (See accompanying
5   
// Distributed under the Boost Software License, Version 1.0. (See accompanying
6   
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6   
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7   
//
7   
//
8   
// Official repository: https://github.com/boostorg/http_proto
8   
// Official repository: https://github.com/boostorg/http_proto
9   
//
9   
//
10  
10  
11   
#ifndef BOOST_URL_IMPL_GRAMMAR_TOKEN_RULE_HPP
11   
#ifndef BOOST_URL_IMPL_GRAMMAR_TOKEN_RULE_HPP
12   
#define BOOST_URL_IMPL_GRAMMAR_TOKEN_RULE_HPP
12   
#define BOOST_URL_IMPL_GRAMMAR_TOKEN_RULE_HPP
13  
13  
14   
#include <boost/url/grammar/error.hpp>
14   
#include <boost/url/grammar/error.hpp>
15  
15  
16   
namespace boost {
16   
namespace boost {
17   
namespace urls {
17   
namespace urls {
18   
namespace grammar {
18   
namespace grammar {
19  
19  
20   
template<class CharSet>
20   
template<class CharSet>
21   
BOOST_URL_CXX20_CONSTEXPR
21   
BOOST_URL_CXX20_CONSTEXPR
22   
auto
22   
auto
23   
implementation_defined::token_rule_t<CharSet>::
23   
implementation_defined::token_rule_t<CharSet>::
24   
parse(
24   
parse(
25   
    char const*& it,
25   
    char const*& it,
26   
    char const* end
26   
    char const* end
27   
        ) const noexcept ->
27   
        ) const noexcept ->
28   
    system::result<value_type>
28   
    system::result<value_type>
29   
{
29   
{
30   
    auto const it0 = it;
30   
    auto const it0 = it;
31   
    if(it == end)
31   
    if(it == end)
32   
    {
32   
    {
33   
        BOOST_URL_CONSTEXPR_RETURN_EC(
33   
        BOOST_URL_CONSTEXPR_RETURN_EC(
34   
            error::need_more);
34   
            error::need_more);
35   
    }
35   
    }
36   
    auto const& cs = this->get();
36   
    auto const& cs = this->get();
37   
    it = grammar::find_if_not(it, end, cs);
37   
    it = grammar::find_if_not(it, end, cs);
38   
    if(it != it0)
38   
    if(it != it0)
39   
        return core::string_view(it0, it - it0);
39   
        return core::string_view(it0, it - it0);
40   
    BOOST_URL_CONSTEXPR_RETURN_EC(
40   
    BOOST_URL_CONSTEXPR_RETURN_EC(
41   
        error::mismatch);
41   
        error::mismatch);
42   
}
42   
}
43  
43  
44   
} // grammar
44   
} // grammar
45   
} // urls
45   
} // urls
46   
} // boost
46   
} // boost
47  
47  
48   
#endif
48   
#endif