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include/boost/url/detail/impl/any_params_iter.hpp

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include/boost/url/detail/impl/any_params_iter.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_DETAIL_IMPL_ANY_PARAMS_ITER_HPP
12 #define BOOST_URL_DETAIL_IMPL_ANY_PARAMS_ITER_HPP
13
14 #include <boost/url/encode.hpp>
15 #include <boost/url/rfc/detail/charsets.hpp>
16 #include <boost/assert.hpp>
17
18 namespace boost {
19 namespace urls {
20 namespace detail {
21
22 //------------------------------------------------
23 //
24 // query_string_iter
25 //
26 //------------------------------------------------
27
28 inline
29 33 query_string_iter::
30 query_string_iter(
31 core::string_view s,
32 33 bool ne) noexcept
33 : any_params_iter(
34
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 33 s.empty() && ! ne, s)
35 {
36 33 rewind();
37 33 }
38
39 inline
40 void
41 44 query_string_iter::
42 rewind() noexcept
43 {
44
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 44 if(empty)
45 {
46 22 at_end_ = true;
47 22 return;
48 }
49 22 p_ = s0.begin();
50
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 22 if(! s0.empty())
51 {
52 auto pos =
53 16 s0.find_first_of('&');
54
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 16 if(pos != core::string_view::npos)
55 4 n_ = pos;
56 else
57 12 n_ = s0.size();
58 }
59 else
60 {
61 6 n_ = 0;
62 }
63 22 at_end_ = false;
64 }
65
66 inline
67 bool
68 46 query_string_iter::
69 measure(
70 std::size_t& n) noexcept
71 {
72
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 46 if(at_end_)
73 33 return false;
74 // When interacting with the query as
75 // an intact string, we do not treat
76 // the plus sign as an encoded space.
77 13 encoding_opts opt;
78 13 opt.space_as_plus = false;
79 13 n += encoded_size(
80 core::string_view(p_, n_),
81 query_chars,
82 opt);
83 13 increment();
84 13 return true;
85 }
86
87 inline
88 void
89 13 query_string_iter::
90 copy(
91 char*& dest,
92 char const* end) noexcept
93 {
94
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 13 BOOST_ASSERT(! at_end_);
95 // When interacting with the query as
96 // an intact string, we do not treat
97 // the plus sign as an encoded space.
98 13 encoding_opts opt;
99 13 opt.space_as_plus = false;
100 13 dest += encode_unsafe(
101 dest,
102 13 end - dest,
103 core::string_view(p_, n_),
104 query_chars,
105 opt);
106 13 increment();
107 13 }
108
109 inline
110 void
111 26 query_string_iter::
112 increment() noexcept
113 {
114 26 p_ += n_;
115
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 26 if(p_ == s0.end())
116 {
117 22 at_end_ = true;
118 22 return;
119 }
120 4 ++p_;
121 4 core::string_view s(p_, s0.end() - p_);
122 4 auto pos = s.find_first_of('&');
123
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 4 if(pos != core::string_view::npos)
124 ✗ n_ = pos;
125 else
126 4 n_ = s.size();
127 }
128
129 } // detail
130 } // urls
131 } // boost
132
133 #endif
134