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

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include/boost/url/grammar/impl/token_rule.hpp
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1 //
2 // Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com)
3 // Copyright (c) 2022 Alan de Freitas (alandefreitas@gmail.com)
4 //
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)
7 //
8 // Official repository: https://github.com/boostorg/http_proto
9 //
10
11 #ifndef BOOST_URL_IMPL_GRAMMAR_TOKEN_RULE_HPP
12 #define BOOST_URL_IMPL_GRAMMAR_TOKEN_RULE_HPP
13
14 #include <boost/url/grammar/error.hpp>
15
16 namespace boost {
17 namespace urls {
18 namespace grammar {
19
20 template<class CharSet>
21 BOOST_URL_CXX14_CONSTEXPR
22 auto
23 676 implementation_defined::token_rule_t<CharSet>::
24 parse(
25 char const*& it,
26 char const* end
27 ) const noexcept ->
28 system::result<value_type>
29 {
30 676 auto const it0 = it;
31
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676 if(it == end)
32 {
33 6 BOOST_URL_CONSTEXPR_RETURN_EC(
34 error::need_more);
35 }
36 670 auto const& cs = this->get();
37 670 it = grammar::find_if_not(it, end, cs);
38
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670 if(it != it0)
39 605 return core::string_view(it0, it - it0);
40 65 BOOST_URL_CONSTEXPR_RETURN_EC(
41 error::mismatch);
42 }
43
44 } // grammar
45 } // urls
46 } // boost
47
48 #endif
49