include/boost/url/grammar/impl/literal_rule.hpp
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include/boost/url/grammar/impl/literal_rule.hpp
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|---|---|---|---|
| 1 | // | ||
| 2 | // Copyright (c) 2019 Vinnie Falco (vinnie.falco@gmail.com) | ||
| 3 | // Copyright (c) 2023 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/url | ||
| 9 | // | ||
| 10 | |||
| 11 | #ifndef BOOST_URL_GRAMMAR_IMPL_LITERAL_RULE_HPP | ||
| 12 | #define BOOST_URL_GRAMMAR_IMPL_LITERAL_RULE_HPP | ||
| 13 | |||
| 14 | #include <boost/url/detail/config.hpp> | ||
| 15 | #include <boost/url/grammar/error.hpp> | ||
| 16 | #include <boost/assert.hpp> | ||
| 17 | #include <cstring> | ||
| 18 | |||
| 19 | namespace boost { | ||
| 20 | namespace urls { | ||
| 21 | namespace grammar { | ||
| 22 | |||
| 23 | inline BOOST_URL_CXX20_CONSTEXPR | ||
| 24 | auto | ||
| 25 | 10 | literal_rule:: | |
| 26 | parse( | ||
| 27 | char const*& it, | ||
| 28 | char const* end) const noexcept -> | ||
| 29 | system::result<value_type> | ||
| 30 | { | ||
| 31 |
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10 | BOOST_ASSERT(n_ > 0); |
| 32 | |||
| 33 | 10 | std::size_t n = end - it; | |
| 34 |
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10 | if(n >= n_) |
| 35 | { | ||
| 36 | 4 | if(std::memcmp( | |
| 37 |
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4 | it, s_, n_) != 0) |
| 38 | { | ||
| 39 | 1 | BOOST_URL_CONSTEXPR_RETURN_EC( | |
| 40 | error::mismatch); | ||
| 41 | } | ||
| 42 | 3 | it += n_; | |
| 43 | 3 | return core::string_view( | |
| 44 | 3 | it - n_, it); | |
| 45 | } | ||
| 46 |
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6 | if(n > 0) |
| 47 | { | ||
| 48 | 5 | if(std::memcmp( | |
| 49 |
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5 | it, s_, n) != 0) |
| 50 | { | ||
| 51 | 2 | BOOST_URL_CONSTEXPR_RETURN_EC( | |
| 52 | error::mismatch); | ||
| 53 | } | ||
| 54 | 3 | BOOST_URL_CONSTEXPR_RETURN_EC( | |
| 55 | error::need_more); | ||
| 56 | } | ||
| 57 | 1 | BOOST_URL_CONSTEXPR_RETURN_EC( | |
| 58 | error::need_more); | ||
| 59 | } | ||
| 60 | |||
| 61 | } // grammar | ||
| 62 | } // urls | ||
| 63 | } // boost | ||
| 64 | |||
| 65 | #endif | ||
| 66 |