. /include/boost/url /rfc /impl /query_rule.hpp
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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) 2023 Alan de Freitas (alandefreitas@gmail.com) 3   // Copyright (c) 2023 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/url 8   // Official repository: https://github.com/boostorg/url
9   // 9   //
10   10  
11   #ifndef BOOST_URL_RFC_IMPL_QUERY_RULE_HPP 11   #ifndef BOOST_URL_RFC_IMPL_QUERY_RULE_HPP
12   #define BOOST_URL_RFC_IMPL_QUERY_RULE_HPP 12   #define BOOST_URL_RFC_IMPL_QUERY_RULE_HPP
13   13  
14   #include <boost/url/detail/config.hpp> 14   #include <boost/url/detail/config.hpp>
15   #include <boost/url/rfc/detail/charsets.hpp> 15   #include <boost/url/rfc/detail/charsets.hpp>
16   #include <boost/url/error.hpp> 16   #include <boost/url/error.hpp>
17   #include <boost/url/grammar/hexdig_chars.hpp> 17   #include <boost/url/grammar/hexdig_chars.hpp>
18   18  
19   namespace boost { 19   namespace boost {
20   namespace urls { 20   namespace urls {
21   21  
22   inline 22   inline
23   auto 23   auto
HITCBC 24   3157 implementation_defined::query_rule_t:: 24   3157 implementation_defined::query_rule_t::
25   parse( 25   parse(
26   char const*& it, 26   char const*& it,
27   char const* end 27   char const* end
28   ) const noexcept -> 28   ) const noexcept ->
29   system::result<value_type> 29   system::result<value_type>
30   { 30   {
HITCBC 31   3157 if(it == end) 31   3157 if(it == end)
32   { 32   {
33   // empty string = 1 param 33   // empty string = 1 param
MISUBC 34   ✗ core::string_view str(it, 0); 34   ✗ core::string_view str(it, 0);
MISUBC 35   ✗ return params_encoded_view( 35   ✗ return params_encoded_view(
MISUBC 36   ✗ detail::query_ref(str, 0, 1)); 36   ✗ detail::query_ref(str, 0, 1));
37   } 37   }
HITCBC 38   3157 auto const it0 = it; 38   3157 auto const it0 = it;
HITCBC 39   3157 std::size_t dn = 0; 39   3157 std::size_t dn = 0;
HITCBC 40   3157 std::size_t nparam = 1; 40   3157 std::size_t nparam = 1;
HITCBC 41   24337 while(it != end) 41   24337 while(it != end)
42   { 42   {
HITCBC 43   24175 if(*it == '&') 43   24175 if(*it == '&')
44   { 44   {
HITCBC 45   428 ++nparam; 45   428 ++nparam;
HITCBC 46   428 ++it; 46   428 ++it;
HITCBC 47   428 continue; 47   428 continue;
48   } 48   }
HITCBC 49   23747 if(detail::query_chars(*it)) 49   23747 if(detail::query_chars(*it))
50   { 50   {
HITCBC 51   20499 ++it; 51   20499 ++it;
HITCBC 52   20499 continue; 52   20499 continue;
53   } 53   }
HITCBC 54   3248 if(*it == '%') 54   3248 if(*it == '%')
55   { 55   {
HITCBC 56   589 if(end - it < 3 || 56   589 if(end - it < 3 ||
HITCBC 57   289 (!grammar::hexdig_chars(it[1]) || 57   289 (!grammar::hexdig_chars(it[1]) ||
HITCBC 58   271 !grammar::hexdig_chars(it[2]))) 58   271 !grammar::hexdig_chars(it[2])))
59   { 59   {
60   // missing valid HEXDIG 60   // missing valid HEXDIG
HITCBC 61   47 break; 61   47 break;
62   } 62   }
HITCBC 63   253 it += 3; 63   253 it += 3;
HITCBC 64   253 dn += 2; 64   253 dn += 2;
HITCBC 65   253 continue; 65   253 continue;
66   } 66   }
67   // got reserved character 67   // got reserved character
HITCBC 68   2948 break; 68   2948 break;
69   } 69   }
HITCBC 70   3157 std::size_t const n(it - it0); 70   3157 std::size_t const n(it - it0);
HITCBC 71   3157 core::string_view str(it0, n); 71   3157 core::string_view str(it0, n);
HITCBC 72   3157 return params_encoded_view( 72   3157 return params_encoded_view(
HITCBC 73   6314 detail::query_ref( 73   6314 detail::query_ref(
HITCBC 74   3157 str, n - dn, nparam)); 74   3157 str, n - dn, nparam));
75   } 75   }
76   76  
77   } // urls 77   } // urls
78   } // boost 78   } // boost
79   79  
80   80  
81   #endif 81   #endif