1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
|
// Copyright Toru Niina 2017.
// Distributed under the MIT License.
#ifndef TOML11_STRING_HPP
#define TOML11_STRING_HPP
#include "version.hpp"
#include <cstdint>
#include <algorithm>
#include <string>
#if TOML11_CPLUSPLUS_STANDARD_VERSION >= 201703L
#if __has_include(<string_view>)
#define TOML11_USING_STRING_VIEW 1
#include <string_view>
#endif
#endif
namespace toml
{
enum class string_t : std::uint8_t
{
basic = 0,
literal = 1,
};
struct string
{
string() = default;
~string() = default;
string(const string& s) = default;
string(string&& s) = default;
string& operator=(const string& s) = default;
string& operator=(string&& s) = default;
string(const std::string& s): kind(string_t::basic), str(s){}
string(const std::string& s, string_t k): kind(k), str(s){}
string(const char* s): kind(string_t::basic), str(s){}
string(const char* s, string_t k): kind(k), str(s){}
string(std::string&& s): kind(string_t::basic), str(std::move(s)){}
string(std::string&& s, string_t k): kind(k), str(std::move(s)){}
string& operator=(const std::string& s)
{kind = string_t::basic; str = s; return *this;}
string& operator=(std::string&& s)
{kind = string_t::basic; str = std::move(s); return *this;}
operator std::string& () & noexcept {return str;}
operator std::string const& () const& noexcept {return str;}
operator std::string&& () && noexcept {return std::move(str);}
string& operator+=(const char* rhs) {str += rhs; return *this;}
string& operator+=(const char rhs) {str += rhs; return *this;}
string& operator+=(const std::string& rhs) {str += rhs; return *this;}
string& operator+=(const string& rhs) {str += rhs.str; return *this;}
#if defined(TOML11_USING_STRING_VIEW) && TOML11_USING_STRING_VIEW>0
explicit string(std::string_view s): kind(string_t::basic), str(s){}
string(std::string_view s, string_t k): kind(k), str(s){}
string& operator=(std::string_view s)
{kind = string_t::basic; str = s; return *this;}
explicit operator std::string_view() const noexcept
{return std::string_view(str);}
string& operator+=(const std::string_view& rhs) {str += rhs; return *this;}
#endif
string_t kind;
std::string str;
};
inline bool operator==(const string& lhs, const string& rhs)
{
return lhs.kind == rhs.kind && lhs.str == rhs.str;
}
inline bool operator!=(const string& lhs, const string& rhs)
{
return !(lhs == rhs);
}
inline bool operator<(const string& lhs, const string& rhs)
{
return (lhs.kind == rhs.kind) ? (lhs.str < rhs.str) : (lhs.kind < rhs.kind);
}
inline bool operator>(const string& lhs, const string& rhs)
{
return rhs < lhs;
}
inline bool operator<=(const string& lhs, const string& rhs)
{
return !(rhs < lhs);
}
inline bool operator>=(const string& lhs, const string& rhs)
{
return !(lhs < rhs);
}
inline bool
operator==(const string& lhs, const std::string& rhs) {return lhs.str == rhs;}
inline bool
operator!=(const string& lhs, const std::string& rhs) {return lhs.str != rhs;}
inline bool
operator< (const string& lhs, const std::string& rhs) {return lhs.str < rhs;}
inline bool
operator> (const string& lhs, const std::string& rhs) {return lhs.str > rhs;}
inline bool
operator<=(const string& lhs, const std::string& rhs) {return lhs.str <= rhs;}
inline bool
operator>=(const string& lhs, const std::string& rhs) {return lhs.str >= rhs;}
inline bool
operator==(const std::string& lhs, const string& rhs) {return lhs == rhs.str;}
inline bool
operator!=(const std::string& lhs, const string& rhs) {return lhs != rhs.str;}
inline bool
operator< (const std::string& lhs, const string& rhs) {return lhs < rhs.str;}
inline bool
operator> (const std::string& lhs, const string& rhs) {return lhs > rhs.str;}
inline bool
operator<=(const std::string& lhs, const string& rhs) {return lhs <= rhs.str;}
inline bool
operator>=(const std::string& lhs, const string& rhs) {return lhs >= rhs.str;}
inline bool
operator==(const string& lhs, const char* rhs) {return lhs.str == std::string(rhs);}
inline bool
operator!=(const string& lhs, const char* rhs) {return lhs.str != std::string(rhs);}
inline bool
operator< (const string& lhs, const char* rhs) {return lhs.str < std::string(rhs);}
inline bool
operator> (const string& lhs, const char* rhs) {return lhs.str > std::string(rhs);}
inline bool
operator<=(const string& lhs, const char* rhs) {return lhs.str <= std::string(rhs);}
inline bool
operator>=(const string& lhs, const char* rhs) {return lhs.str >= std::string(rhs);}
inline bool
operator==(const char* lhs, const string& rhs) {return std::string(lhs) == rhs.str;}
inline bool
operator!=(const char* lhs, const string& rhs) {return std::string(lhs) != rhs.str;}
inline bool
operator< (const char* lhs, const string& rhs) {return std::string(lhs) < rhs.str;}
inline bool
operator> (const char* lhs, const string& rhs) {return std::string(lhs) > rhs.str;}
inline bool
operator<=(const char* lhs, const string& rhs) {return std::string(lhs) <= rhs.str;}
inline bool
operator>=(const char* lhs, const string& rhs) {return std::string(lhs) >= rhs.str;}
template<typename charT, typename traits>
std::basic_ostream<charT, traits>&
operator<<(std::basic_ostream<charT, traits>& os, const string& s)
{
if(s.kind == string_t::basic)
{
if(std::find(s.str.cbegin(), s.str.cend(), '\n') != s.str.cend())
{
// it contains newline. make it multiline string.
os << "\"\"\"\n";
for(auto i=s.str.cbegin(), e=s.str.cend(); i!=e; ++i)
{
switch(*i)
{
case '\\': {os << "\\\\"; break;}
case '\"': {os << "\\\""; break;}
case '\b': {os << "\\b"; break;}
case '\t': {os << "\\t"; break;}
case '\f': {os << "\\f"; break;}
case '\n': {os << '\n'; break;}
case '\r':
{
// since it is a multiline string,
// CRLF is not needed to be escaped.
if(std::next(i) != e && *std::next(i) == '\n')
{
os << "\r\n";
++i;
}
else
{
os << "\\r";
}
break;
}
default: {os << *i; break;}
}
}
os << "\\\n\"\"\"";
return os;
}
// no newline. make it inline.
os << "\"";
for(const auto c : s.str)
{
switch(c)
{
case '\\': {os << "\\\\"; break;}
case '\"': {os << "\\\""; break;}
case '\b': {os << "\\b"; break;}
case '\t': {os << "\\t"; break;}
case '\f': {os << "\\f"; break;}
case '\n': {os << "\\n"; break;}
case '\r': {os << "\\r"; break;}
default : {os << c; break;}
}
}
os << "\"";
return os;
}
// the string `s` is literal-string.
if(std::find(s.str.cbegin(), s.str.cend(), '\n') != s.str.cend() ||
std::find(s.str.cbegin(), s.str.cend(), '\'') != s.str.cend() )
{
// contains newline or single quote. make it multiline.
os << "'''\n" << s.str << "'''";
return os;
}
// normal literal string
os << '\'' << s.str << '\'';
return os;
}
} // toml
#endif// TOML11_STRING_H
|