| 1 | // Formatting library for C++ - experimental range support |
| 2 | // |
| 3 | // Copyright (c) 2012 - present, Victor Zverovich |
| 4 | // All rights reserved. |
| 5 | // |
| 6 | // For the license information refer to format.h. |
| 7 | // |
| 8 | // Copyright (c) 2018 - present, Remotion (Igor Schulz) |
| 9 | // All Rights Reserved |
| 10 | // {fmt} support for ranges, containers and types tuple interface. |
| 11 | |
| 12 | #ifndef FMT_RANGES_H_ |
| 13 | #define FMT_RANGES_H_ |
| 14 | |
| 15 | #include <initializer_list> |
| 16 | #include <tuple> |
| 17 | #include <type_traits> |
| 18 | |
| 19 | #include "format.h" |
| 20 | |
| 21 | FMT_BEGIN_NAMESPACE |
| 22 | |
| 23 | namespace detail { |
| 24 | |
| 25 | template <typename RangeT, typename OutputIterator> |
| 26 | OutputIterator copy(const RangeT& range, OutputIterator out) { |
| 27 | for (auto it = range.begin(), end = range.end(); it != end; ++it) |
| 28 | *out++ = *it; |
| 29 | return out; |
| 30 | } |
| 31 | |
| 32 | template <typename OutputIterator> |
| 33 | OutputIterator copy(const char* str, OutputIterator out) { |
| 34 | while (*str) *out++ = *str++; |
| 35 | return out; |
| 36 | } |
| 37 | |
| 38 | template <typename OutputIterator> |
| 39 | OutputIterator copy(char ch, OutputIterator out) { |
| 40 | *out++ = ch; |
| 41 | return out; |
| 42 | } |
| 43 | |
| 44 | template <typename OutputIterator> |
| 45 | OutputIterator copy(wchar_t ch, OutputIterator out) { |
| 46 | *out++ = ch; |
| 47 | return out; |
| 48 | } |
| 49 | |
| 50 | // Returns true if T has a std::string-like interface, like std::string_view. |
| 51 | template <typename T> class is_std_string_like { |
| 52 | template <typename U> |
| 53 | static auto check(U* p) |
| 54 | -> decltype((void)p->find('a'), p->length(), (void)p->data(), int()); |
| 55 | template <typename> static void check(...); |
| 56 | |
| 57 | public: |
| 58 | static FMT_CONSTEXPR_DECL const bool value = |
| 59 | is_string<T>::value || |
| 60 | std::is_convertible<T, std_string_view<char>>::value || |
| 61 | !std::is_void<decltype(check<T>(nullptr))>::value; |
| 62 | }; |
| 63 | |
| 64 | template <typename Char> |
| 65 | struct is_std_string_like<fmt::basic_string_view<Char>> : std::true_type {}; |
| 66 | |
| 67 | template <typename T> class is_map { |
| 68 | template <typename U> static auto check(U*) -> typename U::mapped_type; |
| 69 | template <typename> static void check(...); |
| 70 | |
| 71 | public: |
| 72 | #ifdef FMT_FORMAT_MAP_AS_LIST |
| 73 | static FMT_CONSTEXPR_DECL const bool value = false; |
| 74 | #else |
| 75 | static FMT_CONSTEXPR_DECL const bool value = |
| 76 | !std::is_void<decltype(check<T>(nullptr))>::value; |
| 77 | #endif |
| 78 | }; |
| 79 | |
| 80 | template <typename T> class is_set { |
| 81 | template <typename U> static auto check(U*) -> typename U::key_type; |
| 82 | template <typename> static void check(...); |
| 83 | |
| 84 | public: |
| 85 | #ifdef FMT_FORMAT_SET_AS_LIST |
| 86 | static FMT_CONSTEXPR_DECL const bool value = false; |
| 87 | #else |
| 88 | static FMT_CONSTEXPR_DECL const bool value = |
| 89 | !std::is_void<decltype(check<T>(nullptr))>::value && !is_map<T>::value; |
| 90 | #endif |
| 91 | }; |
| 92 | |
| 93 | template <typename... Ts> struct conditional_helper {}; |
| 94 | |
| 95 | template <typename T, typename _ = void> struct is_range_ : std::false_type {}; |
| 96 | |
| 97 | #if !FMT_MSC_VER || FMT_MSC_VER > 1800 |
| 98 | |
| 99 | # define FMT_DECLTYPE_RETURN(val) \ |
| 100 | ->decltype(val) { return val; } \ |
| 101 | static_assert( \ |
| 102 | true, "") // This makes it so that a semicolon is required after the |
| 103 | // macro, which helps clang-format handle the formatting. |
| 104 | |
| 105 | // C array overload |
| 106 | template <typename T, std::size_t N> |
| 107 | auto range_begin(const T (&arr)[N]) -> const T* { |
| 108 | return arr; |
| 109 | } |
| 110 | template <typename T, std::size_t N> |
| 111 | auto range_end(const T (&arr)[N]) -> const T* { |
| 112 | return arr + N; |
| 113 | } |
| 114 | |
| 115 | template <typename T, typename Enable = void> |
| 116 | struct has_member_fn_begin_end_t : std::false_type {}; |
| 117 | |
| 118 | template <typename T> |
| 119 | struct has_member_fn_begin_end_t<T, void_t<decltype(std::declval<T>().begin()), |
| 120 | decltype(std::declval<T>().end())>> |
| 121 | : std::true_type {}; |
| 122 | |
| 123 | // Member function overload |
| 124 | template <typename T> |
| 125 | auto range_begin(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).begin()); |
| 126 | template <typename T> |
| 127 | auto range_end(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).end()); |
| 128 | |
| 129 | // ADL overload. Only participates in overload resolution if member functions |
| 130 | // are not found. |
| 131 | template <typename T> |
| 132 | auto range_begin(T&& rng) |
| 133 | -> enable_if_t<!has_member_fn_begin_end_t<T&&>::value, |
| 134 | decltype(begin(static_cast<T&&>(rng)))> { |
| 135 | return begin(static_cast<T&&>(rng)); |
| 136 | } |
| 137 | template <typename T> |
| 138 | auto range_end(T&& rng) -> enable_if_t<!has_member_fn_begin_end_t<T&&>::value, |
| 139 | decltype(end(static_cast<T&&>(rng)))> { |
| 140 | return end(static_cast<T&&>(rng)); |
| 141 | } |
| 142 | |
| 143 | template <typename T, typename Enable = void> |
| 144 | struct has_const_begin_end : std::false_type {}; |
| 145 | template <typename T, typename Enable = void> |
| 146 | struct has_mutable_begin_end : std::false_type {}; |
| 147 | |
| 148 | template <typename T> |
| 149 | struct has_const_begin_end< |
| 150 | T, |
| 151 | void_t< |
| 152 | decltype(detail::range_begin(std::declval<const remove_cvref_t<T>&>())), |
| 153 | decltype(detail::range_end(std::declval<const remove_cvref_t<T>&>()))>> |
| 154 | : std::true_type {}; |
| 155 | |
| 156 | template <typename T> |
| 157 | struct has_mutable_begin_end< |
| 158 | T, void_t<decltype(detail::range_begin(std::declval<T>())), |
| 159 | decltype(detail::range_end(std::declval<T>())), |
| 160 | enable_if_t<std::is_copy_constructible<T>::value>>> |
| 161 | : std::true_type {}; |
| 162 | |
| 163 | template <typename T> |
| 164 | struct is_range_<T, void> |
| 165 | : std::integral_constant<bool, (has_const_begin_end<T>::value || |
| 166 | has_mutable_begin_end<T>::value)> {}; |
| 167 | # undef FMT_DECLTYPE_RETURN |
| 168 | #endif |
| 169 | |
| 170 | // tuple_size and tuple_element check. |
| 171 | template <typename T> class is_tuple_like_ { |
| 172 | template <typename U> |
| 173 | static auto check(U* p) -> decltype(std::tuple_size<U>::value, int()); |
| 174 | template <typename> static void check(...); |
| 175 | |
| 176 | public: |
| 177 | static FMT_CONSTEXPR_DECL const bool value = |
| 178 | !std::is_void<decltype(check<T>(nullptr))>::value; |
| 179 | }; |
| 180 | |
| 181 | // Check for integer_sequence |
| 182 | #if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900 |
| 183 | template <typename T, T... N> |
| 184 | using integer_sequence = std::integer_sequence<T, N...>; |
| 185 | template <size_t... N> using index_sequence = std::index_sequence<N...>; |
| 186 | template <size_t N> using make_index_sequence = std::make_index_sequence<N>; |
| 187 | #else |
| 188 | template <typename T, T... N> struct integer_sequence { |
| 189 | using value_type = T; |
| 190 | |
| 191 | static FMT_CONSTEXPR size_t size() { return sizeof...(N); } |
| 192 | }; |
| 193 | |
| 194 | template <size_t... N> using index_sequence = integer_sequence<size_t, N...>; |
| 195 | |
| 196 | template <typename T, size_t N, T... Ns> |
| 197 | struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {}; |
| 198 | template <typename T, T... Ns> |
| 199 | struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {}; |
| 200 | |
| 201 | template <size_t N> |
| 202 | using make_index_sequence = make_integer_sequence<size_t, N>; |
| 203 | #endif |
| 204 | |
| 205 | template <class Tuple, class F, size_t... Is> |
| 206 | void for_each(index_sequence<Is...>, Tuple&& tup, F&& f) FMT_NOEXCEPT { |
| 207 | using std::get; |
| 208 | // using free function get<I>(T) now. |
| 209 | const int _[] = {0, ((void)f(get<Is>(tup)), 0)...}; |
| 210 | (void)_; // blocks warnings |
| 211 | } |
| 212 | |
| 213 | template <class T> |
| 214 | FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes( |
| 215 | T const&) { |
| 216 | return {}; |
| 217 | } |
| 218 | |
| 219 | template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) { |
| 220 | const auto indexes = get_indexes(tup); |
| 221 | for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f)); |
| 222 | } |
| 223 | |
| 224 | template <typename Range> |
| 225 | using value_type = |
| 226 | remove_cvref_t<decltype(*detail::range_begin(std::declval<Range>()))>; |
| 227 | |
| 228 | template <typename OutputIt> OutputIt write_delimiter(OutputIt out) { |
| 229 | *out++ = ','; |
| 230 | *out++ = ' '; |
| 231 | return out; |
| 232 | } |
| 233 | |
| 234 | struct singleton { |
| 235 | unsigned char upper; |
| 236 | unsigned char lower_count; |
| 237 | }; |
| 238 | |
| 239 | inline auto is_printable(uint16_t x, const singleton* singletons, |
| 240 | size_t singletons_size, |
| 241 | const unsigned char* singleton_lowers, |
| 242 | const unsigned char* normal, size_t normal_size) |
| 243 | -> bool { |
| 244 | auto upper = x >> 8; |
| 245 | auto lower_start = 0; |
| 246 | for (size_t i = 0; i < singletons_size; ++i) { |
| 247 | auto s = singletons[i]; |
| 248 | auto lower_end = lower_start + s.lower_count; |
| 249 | if (upper < s.upper) break; |
| 250 | if (upper == s.upper) { |
| 251 | for (auto j = lower_start; j < lower_end; ++j) { |
| 252 | if (singleton_lowers[j] == (x & 0xff)) return false; |
| 253 | } |
| 254 | } |
| 255 | lower_start = lower_end; |
| 256 | } |
| 257 | |
| 258 | auto xsigned = static_cast<int>(x); |
| 259 | auto current = true; |
| 260 | for (size_t i = 0; i < normal_size; ++i) { |
| 261 | auto v = static_cast<int>(normal[i]); |
| 262 | auto len = (v & 0x80) != 0 ? (v & 0x7f) << 8 | normal[++i] : v; |
| 263 | xsigned -= len; |
| 264 | if (xsigned < 0) break; |
| 265 | current = !current; |
| 266 | } |
| 267 | return current; |
| 268 | } |
| 269 | |
| 270 | // Returns true iff the code point cp is printable. |
| 271 | // This code is generated by support/printable.py. |
| 272 | inline auto is_printable(uint32_t cp) -> bool { |
| 273 | static constexpr singleton singletons0[] = { |
| 274 | {0x00, 1}, {0x03, 5}, {0x05, 6}, {0x06, 3}, {0x07, 6}, {0x08, 8}, |
| 275 | {0x09, 17}, {0x0a, 28}, {0x0b, 25}, {0x0c, 20}, {0x0d, 16}, {0x0e, 13}, |
| 276 | {0x0f, 4}, {0x10, 3}, {0x12, 18}, {0x13, 9}, {0x16, 1}, {0x17, 5}, |
| 277 | {0x18, 2}, {0x19, 3}, {0x1a, 7}, {0x1c, 2}, {0x1d, 1}, {0x1f, 22}, |
| 278 | {0x20, 3}, {0x2b, 3}, {0x2c, 2}, {0x2d, 11}, {0x2e, 1}, {0x30, 3}, |
| 279 | {0x31, 2}, {0x32, 1}, {0xa7, 2}, {0xa9, 2}, {0xaa, 4}, {0xab, 8}, |
| 280 | {0xfa, 2}, {0xfb, 5}, {0xfd, 4}, {0xfe, 3}, {0xff, 9}, |
| 281 | }; |
| 282 | static constexpr unsigned char singletons0_lower[] = { |
| 283 | 0xad, 0x78, 0x79, 0x8b, 0x8d, 0xa2, 0x30, 0x57, 0x58, 0x8b, 0x8c, 0x90, |
| 284 | 0x1c, 0x1d, 0xdd, 0x0e, 0x0f, 0x4b, 0x4c, 0xfb, 0xfc, 0x2e, 0x2f, 0x3f, |
| 285 | 0x5c, 0x5d, 0x5f, 0xb5, 0xe2, 0x84, 0x8d, 0x8e, 0x91, 0x92, 0xa9, 0xb1, |
| 286 | 0xba, 0xbb, 0xc5, 0xc6, 0xc9, 0xca, 0xde, 0xe4, 0xe5, 0xff, 0x00, 0x04, |
| 287 | 0x11, 0x12, 0x29, 0x31, 0x34, 0x37, 0x3a, 0x3b, 0x3d, 0x49, 0x4a, 0x5d, |
| 288 | 0x84, 0x8e, 0x92, 0xa9, 0xb1, 0xb4, 0xba, 0xbb, 0xc6, 0xca, 0xce, 0xcf, |
| 289 | 0xe4, 0xe5, 0x00, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, |
| 290 | 0x3b, 0x45, 0x46, 0x49, 0x4a, 0x5e, 0x64, 0x65, 0x84, 0x91, 0x9b, 0x9d, |
| 291 | 0xc9, 0xce, 0xcf, 0x0d, 0x11, 0x29, 0x45, 0x49, 0x57, 0x64, 0x65, 0x8d, |
| 292 | 0x91, 0xa9, 0xb4, 0xba, 0xbb, 0xc5, 0xc9, 0xdf, 0xe4, 0xe5, 0xf0, 0x0d, |
| 293 | 0x11, 0x45, 0x49, 0x64, 0x65, 0x80, 0x84, 0xb2, 0xbc, 0xbe, 0xbf, 0xd5, |
| 294 | 0xd7, 0xf0, 0xf1, 0x83, 0x85, 0x8b, 0xa4, 0xa6, 0xbe, 0xbf, 0xc5, 0xc7, |
| 295 | 0xce, 0xcf, 0xda, 0xdb, 0x48, 0x98, 0xbd, 0xcd, 0xc6, 0xce, 0xcf, 0x49, |
| 296 | 0x4e, 0x4f, 0x57, 0x59, 0x5e, 0x5f, 0x89, 0x8e, 0x8f, 0xb1, 0xb6, 0xb7, |
| 297 | 0xbf, 0xc1, 0xc6, 0xc7, 0xd7, 0x11, 0x16, 0x17, 0x5b, 0x5c, 0xf6, 0xf7, |
| 298 | 0xfe, 0xff, 0x80, 0x0d, 0x6d, 0x71, 0xde, 0xdf, 0x0e, 0x0f, 0x1f, 0x6e, |
| 299 | 0x6f, 0x1c, 0x1d, 0x5f, 0x7d, 0x7e, 0xae, 0xaf, 0xbb, 0xbc, 0xfa, 0x16, |
| 300 | 0x17, 0x1e, 0x1f, 0x46, 0x47, 0x4e, 0x4f, 0x58, 0x5a, 0x5c, 0x5e, 0x7e, |
| 301 | 0x7f, 0xb5, 0xc5, 0xd4, 0xd5, 0xdc, 0xf0, 0xf1, 0xf5, 0x72, 0x73, 0x8f, |
| 302 | 0x74, 0x75, 0x96, 0x2f, 0x5f, 0x26, 0x2e, 0x2f, 0xa7, 0xaf, 0xb7, 0xbf, |
| 303 | 0xc7, 0xcf, 0xd7, 0xdf, 0x9a, 0x40, 0x97, 0x98, 0x30, 0x8f, 0x1f, 0xc0, |
| 304 | 0xc1, 0xce, 0xff, 0x4e, 0x4f, 0x5a, 0x5b, 0x07, 0x08, 0x0f, 0x10, 0x27, |
| 305 | 0x2f, 0xee, 0xef, 0x6e, 0x6f, 0x37, 0x3d, 0x3f, 0x42, 0x45, 0x90, 0x91, |
| 306 | 0xfe, 0xff, 0x53, 0x67, 0x75, 0xc8, 0xc9, 0xd0, 0xd1, 0xd8, 0xd9, 0xe7, |
| 307 | 0xfe, 0xff, |
| 308 | }; |
| 309 | static constexpr singleton singletons1[] = { |
| 310 | {0x00, 6}, {0x01, 1}, {0x03, 1}, {0x04, 2}, {0x08, 8}, {0x09, 2}, |
| 311 | {0x0a, 5}, {0x0b, 2}, {0x0e, 4}, {0x10, 1}, {0x11, 2}, {0x12, 5}, |
| 312 | {0x13, 17}, {0x14, 1}, {0x15, 2}, {0x17, 2}, {0x19, 13}, {0x1c, 5}, |
| 313 | {0x1d, 8}, {0x24, 1}, {0x6a, 3}, {0x6b, 2}, {0xbc, 2}, {0xd1, 2}, |
| 314 | {0xd4, 12}, {0xd5, 9}, {0xd6, 2}, {0xd7, 2}, {0xda, 1}, {0xe0, 5}, |
| 315 | {0xe1, 2}, {0xe8, 2}, {0xee, 32}, {0xf0, 4}, {0xf8, 2}, {0xf9, 2}, |
| 316 | {0xfa, 2}, {0xfb, 1}, |
| 317 | }; |
| 318 | static constexpr unsigned char singletons1_lower[] = { |
| 319 | 0x0c, 0x27, 0x3b, 0x3e, 0x4e, 0x4f, 0x8f, 0x9e, 0x9e, 0x9f, 0x06, 0x07, |
| 320 | 0x09, 0x36, 0x3d, 0x3e, 0x56, 0xf3, 0xd0, 0xd1, 0x04, 0x14, 0x18, 0x36, |
| 321 | 0x37, 0x56, 0x57, 0x7f, 0xaa, 0xae, 0xaf, 0xbd, 0x35, 0xe0, 0x12, 0x87, |
| 322 | 0x89, 0x8e, 0x9e, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a, |
| 323 | 0x45, 0x46, 0x49, 0x4a, 0x4e, 0x4f, 0x64, 0x65, 0x5c, 0xb6, 0xb7, 0x1b, |
| 324 | 0x1c, 0x07, 0x08, 0x0a, 0x0b, 0x14, 0x17, 0x36, 0x39, 0x3a, 0xa8, 0xa9, |
| 325 | 0xd8, 0xd9, 0x09, 0x37, 0x90, 0x91, 0xa8, 0x07, 0x0a, 0x3b, 0x3e, 0x66, |
| 326 | 0x69, 0x8f, 0x92, 0x6f, 0x5f, 0xee, 0xef, 0x5a, 0x62, 0x9a, 0x9b, 0x27, |
| 327 | 0x28, 0x55, 0x9d, 0xa0, 0xa1, 0xa3, 0xa4, 0xa7, 0xa8, 0xad, 0xba, 0xbc, |
| 328 | 0xc4, 0x06, 0x0b, 0x0c, 0x15, 0x1d, 0x3a, 0x3f, 0x45, 0x51, 0xa6, 0xa7, |
| 329 | 0xcc, 0xcd, 0xa0, 0x07, 0x19, 0x1a, 0x22, 0x25, 0x3e, 0x3f, 0xc5, 0xc6, |
| 330 | 0x04, 0x20, 0x23, 0x25, 0x26, 0x28, 0x33, 0x38, 0x3a, 0x48, 0x4a, 0x4c, |
| 331 | 0x50, 0x53, 0x55, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x63, 0x65, 0x66, |
| 332 | 0x6b, 0x73, 0x78, 0x7d, 0x7f, 0x8a, 0xa4, 0xaa, 0xaf, 0xb0, 0xc0, 0xd0, |
| 333 | 0xae, 0xaf, 0x79, 0xcc, 0x6e, 0x6f, 0x93, |
| 334 | }; |
| 335 | static constexpr unsigned char normal0[] = { |
| 336 | 0x00, 0x20, 0x5f, 0x22, 0x82, 0xdf, 0x04, 0x82, 0x44, 0x08, 0x1b, 0x04, |
| 337 | 0x06, 0x11, 0x81, 0xac, 0x0e, 0x80, 0xab, 0x35, 0x28, 0x0b, 0x80, 0xe0, |
| 338 | 0x03, 0x19, 0x08, 0x01, 0x04, 0x2f, 0x04, 0x34, 0x04, 0x07, 0x03, 0x01, |
| 339 | 0x07, 0x06, 0x07, 0x11, 0x0a, 0x50, 0x0f, 0x12, 0x07, 0x55, 0x07, 0x03, |
| 340 | 0x04, 0x1c, 0x0a, 0x09, 0x03, 0x08, 0x03, 0x07, 0x03, 0x02, 0x03, 0x03, |
| 341 | 0x03, 0x0c, 0x04, 0x05, 0x03, 0x0b, 0x06, 0x01, 0x0e, 0x15, 0x05, 0x3a, |
| 342 | 0x03, 0x11, 0x07, 0x06, 0x05, 0x10, 0x07, 0x57, 0x07, 0x02, 0x07, 0x15, |
| 343 | 0x0d, 0x50, 0x04, 0x43, 0x03, 0x2d, 0x03, 0x01, 0x04, 0x11, 0x06, 0x0f, |
| 344 | 0x0c, 0x3a, 0x04, 0x1d, 0x25, 0x5f, 0x20, 0x6d, 0x04, 0x6a, 0x25, 0x80, |
| 345 | 0xc8, 0x05, 0x82, 0xb0, 0x03, 0x1a, 0x06, 0x82, 0xfd, 0x03, 0x59, 0x07, |
| 346 | 0x15, 0x0b, 0x17, 0x09, 0x14, 0x0c, 0x14, 0x0c, 0x6a, 0x06, 0x0a, 0x06, |
| 347 | 0x1a, 0x06, 0x59, 0x07, 0x2b, 0x05, 0x46, 0x0a, 0x2c, 0x04, 0x0c, 0x04, |
| 348 | 0x01, 0x03, 0x31, 0x0b, 0x2c, 0x04, 0x1a, 0x06, 0x0b, 0x03, 0x80, 0xac, |
| 349 | 0x06, 0x0a, 0x06, 0x21, 0x3f, 0x4c, 0x04, 0x2d, 0x03, 0x74, 0x08, 0x3c, |
| 350 | 0x03, 0x0f, 0x03, 0x3c, 0x07, 0x38, 0x08, 0x2b, 0x05, 0x82, 0xff, 0x11, |
| 351 | 0x18, 0x08, 0x2f, 0x11, 0x2d, 0x03, 0x20, 0x10, 0x21, 0x0f, 0x80, 0x8c, |
| 352 | 0x04, 0x82, 0x97, 0x19, 0x0b, 0x15, 0x88, 0x94, 0x05, 0x2f, 0x05, 0x3b, |
| 353 | 0x07, 0x02, 0x0e, 0x18, 0x09, 0x80, 0xb3, 0x2d, 0x74, 0x0c, 0x80, 0xd6, |
| 354 | 0x1a, 0x0c, 0x05, 0x80, 0xff, 0x05, 0x80, 0xdf, 0x0c, 0xee, 0x0d, 0x03, |
| 355 | 0x84, 0x8d, 0x03, 0x37, 0x09, 0x81, 0x5c, 0x14, 0x80, 0xb8, 0x08, 0x80, |
| 356 | 0xcb, 0x2a, 0x38, 0x03, 0x0a, 0x06, 0x38, 0x08, 0x46, 0x08, 0x0c, 0x06, |
| 357 | 0x74, 0x0b, 0x1e, 0x03, 0x5a, 0x04, 0x59, 0x09, 0x80, 0x83, 0x18, 0x1c, |
| 358 | 0x0a, 0x16, 0x09, 0x4c, 0x04, 0x80, 0x8a, 0x06, 0xab, 0xa4, 0x0c, 0x17, |
| 359 | 0x04, 0x31, 0xa1, 0x04, 0x81, 0xda, 0x26, 0x07, 0x0c, 0x05, 0x05, 0x80, |
| 360 | 0xa5, 0x11, 0x81, 0x6d, 0x10, 0x78, 0x28, 0x2a, 0x06, 0x4c, 0x04, 0x80, |
| 361 | 0x8d, 0x04, 0x80, 0xbe, 0x03, 0x1b, 0x03, 0x0f, 0x0d, |
| 362 | }; |
| 363 | static constexpr unsigned char normal1[] = { |
| 364 | 0x5e, 0x22, 0x7b, 0x05, 0x03, 0x04, 0x2d, 0x03, 0x66, 0x03, 0x01, 0x2f, |
| 365 | 0x2e, 0x80, 0x82, 0x1d, 0x03, 0x31, 0x0f, 0x1c, 0x04, 0x24, 0x09, 0x1e, |
| 366 | 0x05, 0x2b, 0x05, 0x44, 0x04, 0x0e, 0x2a, 0x80, 0xaa, 0x06, 0x24, 0x04, |
| 367 | 0x24, 0x04, 0x28, 0x08, 0x34, 0x0b, 0x01, 0x80, 0x90, 0x81, 0x37, 0x09, |
| 368 | 0x16, 0x0a, 0x08, 0x80, 0x98, 0x39, 0x03, 0x63, 0x08, 0x09, 0x30, 0x16, |
| 369 | 0x05, 0x21, 0x03, 0x1b, 0x05, 0x01, 0x40, 0x38, 0x04, 0x4b, 0x05, 0x2f, |
| 370 | 0x04, 0x0a, 0x07, 0x09, 0x07, 0x40, 0x20, 0x27, 0x04, 0x0c, 0x09, 0x36, |
| 371 | 0x03, 0x3a, 0x05, 0x1a, 0x07, 0x04, 0x0c, 0x07, 0x50, 0x49, 0x37, 0x33, |
| 372 | 0x0d, 0x33, 0x07, 0x2e, 0x08, 0x0a, 0x81, 0x26, 0x52, 0x4e, 0x28, 0x08, |
| 373 | 0x2a, 0x56, 0x1c, 0x14, 0x17, 0x09, 0x4e, 0x04, 0x1e, 0x0f, 0x43, 0x0e, |
| 374 | 0x19, 0x07, 0x0a, 0x06, 0x48, 0x08, 0x27, 0x09, 0x75, 0x0b, 0x3f, 0x41, |
| 375 | 0x2a, 0x06, 0x3b, 0x05, 0x0a, 0x06, 0x51, 0x06, 0x01, 0x05, 0x10, 0x03, |
| 376 | 0x05, 0x80, 0x8b, 0x62, 0x1e, 0x48, 0x08, 0x0a, 0x80, 0xa6, 0x5e, 0x22, |
| 377 | 0x45, 0x0b, 0x0a, 0x06, 0x0d, 0x13, 0x39, 0x07, 0x0a, 0x36, 0x2c, 0x04, |
| 378 | 0x10, 0x80, 0xc0, 0x3c, 0x64, 0x53, 0x0c, 0x48, 0x09, 0x0a, 0x46, 0x45, |
| 379 | 0x1b, 0x48, 0x08, 0x53, 0x1d, 0x39, 0x81, 0x07, 0x46, 0x0a, 0x1d, 0x03, |
| 380 | 0x47, 0x49, 0x37, 0x03, 0x0e, 0x08, 0x0a, 0x06, 0x39, 0x07, 0x0a, 0x81, |
| 381 | 0x36, 0x19, 0x80, 0xb7, 0x01, 0x0f, 0x32, 0x0d, 0x83, 0x9b, 0x66, 0x75, |
| 382 | 0x0b, 0x80, 0xc4, 0x8a, 0xbc, 0x84, 0x2f, 0x8f, 0xd1, 0x82, 0x47, 0xa1, |
| 383 | 0xb9, 0x82, 0x39, 0x07, 0x2a, 0x04, 0x02, 0x60, 0x26, 0x0a, 0x46, 0x0a, |
| 384 | 0x28, 0x05, 0x13, 0x82, 0xb0, 0x5b, 0x65, 0x4b, 0x04, 0x39, 0x07, 0x11, |
| 385 | 0x40, 0x05, 0x0b, 0x02, 0x0e, 0x97, 0xf8, 0x08, 0x84, 0xd6, 0x2a, 0x09, |
| 386 | 0xa2, 0xf7, 0x81, 0x1f, 0x31, 0x03, 0x11, 0x04, 0x08, 0x81, 0x8c, 0x89, |
| 387 | 0x04, 0x6b, 0x05, 0x0d, 0x03, 0x09, 0x07, 0x10, 0x93, 0x60, 0x80, 0xf6, |
| 388 | 0x0a, 0x73, 0x08, 0x6e, 0x17, 0x46, 0x80, 0x9a, 0x14, 0x0c, 0x57, 0x09, |
| 389 | 0x19, 0x80, 0x87, 0x81, 0x47, 0x03, 0x85, 0x42, 0x0f, 0x15, 0x85, 0x50, |
| 390 | 0x2b, 0x80, 0xd5, 0x2d, 0x03, 0x1a, 0x04, 0x02, 0x81, 0x70, 0x3a, 0x05, |
| 391 | 0x01, 0x85, 0x00, 0x80, 0xd7, 0x29, 0x4c, 0x04, 0x0a, 0x04, 0x02, 0x83, |
| 392 | 0x11, 0x44, 0x4c, 0x3d, 0x80, 0xc2, 0x3c, 0x06, 0x01, 0x04, 0x55, 0x05, |
| 393 | 0x1b, 0x34, 0x02, 0x81, 0x0e, 0x2c, 0x04, 0x64, 0x0c, 0x56, 0x0a, 0x80, |
| 394 | 0xae, 0x38, 0x1d, 0x0d, 0x2c, 0x04, 0x09, 0x07, 0x02, 0x0e, 0x06, 0x80, |
| 395 | 0x9a, 0x83, 0xd8, 0x08, 0x0d, 0x03, 0x0d, 0x03, 0x74, 0x0c, 0x59, 0x07, |
| 396 | 0x0c, 0x14, 0x0c, 0x04, 0x38, 0x08, 0x0a, 0x06, 0x28, 0x08, 0x22, 0x4e, |
| 397 | 0x81, 0x54, 0x0c, 0x15, 0x03, 0x03, 0x05, 0x07, 0x09, 0x19, 0x07, 0x07, |
| 398 | 0x09, 0x03, 0x0d, 0x07, 0x29, 0x80, 0xcb, 0x25, 0x0a, 0x84, 0x06, |
| 399 | }; |
| 400 | auto lower = static_cast<uint16_t>(cp); |
| 401 | if (cp < 0x10000) { |
| 402 | return is_printable(lower, singletons0, |
| 403 | sizeof(singletons0) / sizeof(*singletons0), |
| 404 | singletons0_lower, normal0, sizeof(normal0)); |
| 405 | } |
| 406 | if (cp < 0x20000) { |
| 407 | return is_printable(lower, singletons1, |
| 408 | sizeof(singletons1) / sizeof(*singletons1), |
| 409 | singletons1_lower, normal1, sizeof(normal1)); |
| 410 | } |
| 411 | if (0x2a6de <= cp && cp < 0x2a700) return false; |
| 412 | if (0x2b735 <= cp && cp < 0x2b740) return false; |
| 413 | if (0x2b81e <= cp && cp < 0x2b820) return false; |
| 414 | if (0x2cea2 <= cp && cp < 0x2ceb0) return false; |
| 415 | if (0x2ebe1 <= cp && cp < 0x2f800) return false; |
| 416 | if (0x2fa1e <= cp && cp < 0x30000) return false; |
| 417 | if (0x3134b <= cp && cp < 0xe0100) return false; |
| 418 | if (0xe01f0 <= cp && cp < 0x110000) return false; |
| 419 | return cp < 0x110000; |
| 420 | } |
| 421 | |
| 422 | inline auto needs_escape(uint32_t cp) -> bool { |
| 423 | return cp < 0x20 || cp == 0x7f || cp == '"' || cp == '\\' || |
| 424 | !is_printable(cp); |
| 425 | } |
| 426 | |
| 427 | template <typename Char> struct find_escape_result { |
| 428 | const Char* begin; |
| 429 | const Char* end; |
| 430 | uint32_t cp; |
| 431 | }; |
| 432 | |
| 433 | template <typename Char> |
| 434 | auto find_escape(const Char* begin, const Char* end) |
| 435 | -> find_escape_result<Char> { |
| 436 | for (; begin != end; ++begin) { |
| 437 | auto cp = static_cast<typename std::make_unsigned<Char>::type>(*begin); |
| 438 | if (sizeof(Char) == 1 && cp >= 0x80) continue; |
| 439 | if (needs_escape(cp)) return {begin, begin + 1, cp}; |
| 440 | } |
| 441 | return {begin, nullptr, 0}; |
| 442 | } |
| 443 | |
| 444 | inline auto find_escape(const char* begin, const char* end) |
| 445 | -> find_escape_result<char> { |
| 446 | if (!is_utf8()) return find_escape<char>(begin, end); |
| 447 | auto result = find_escape_result<char>{end, nullptr, 0}; |
| 448 | for_each_codepoint(string_view(begin, to_unsigned(end - begin)), |
| 449 | [&](uint32_t cp, string_view sv) { |
| 450 | if (needs_escape(cp)) { |
| 451 | result = {sv.begin(), sv.end(), cp}; |
| 452 | return false; |
| 453 | } |
| 454 | return true; |
| 455 | }); |
| 456 | return result; |
| 457 | } |
| 458 | |
| 459 | template <typename Char, typename OutputIt> |
| 460 | auto write_range_entry(OutputIt out, basic_string_view<Char> str) -> OutputIt { |
| 461 | *out++ = '"'; |
| 462 | auto begin = str.begin(), end = str.end(); |
| 463 | do { |
| 464 | auto escape = find_escape(begin, end); |
| 465 | out = copy_str<Char>(begin, escape.begin, out); |
| 466 | begin = escape.end; |
| 467 | if (!begin) break; |
| 468 | auto c = static_cast<Char>(escape.cp); |
| 469 | switch (escape.cp) { |
| 470 | case '\n': |
| 471 | *out++ = '\\'; |
| 472 | c = 'n'; |
| 473 | break; |
| 474 | case '\r': |
| 475 | *out++ = '\\'; |
| 476 | c = 'r'; |
| 477 | break; |
| 478 | case '\t': |
| 479 | *out++ = '\\'; |
| 480 | c = 't'; |
| 481 | break; |
| 482 | case '"': |
| 483 | FMT_FALLTHROUGH; |
| 484 | case '\\': |
| 485 | *out++ = '\\'; |
| 486 | break; |
| 487 | default: |
| 488 | if (is_utf8()) { |
| 489 | if (escape.cp < 0x100) { |
| 490 | out = format_to(out, "\\x{:02x}", escape.cp); |
| 491 | continue; |
| 492 | } |
| 493 | if (escape.cp < 0x10000) { |
| 494 | out = format_to(out, "\\u{:04x}", escape.cp); |
| 495 | continue; |
| 496 | } |
| 497 | if (escape.cp < 0x110000) { |
| 498 | out = format_to(out, "\\U{:08x}", escape.cp); |
| 499 | continue; |
| 500 | } |
| 501 | } |
| 502 | for (Char escape_char : basic_string_view<Char>( |
| 503 | escape.begin, to_unsigned(escape.end - escape.begin))) { |
| 504 | out = format_to( |
| 505 | out, "\\x{:02x}", |
| 506 | static_cast<typename std::make_unsigned<Char>::type>(escape_char)); |
| 507 | } |
| 508 | continue; |
| 509 | } |
| 510 | *out++ = c; |
| 511 | } while (begin != end); |
| 512 | *out++ = '"'; |
| 513 | return out; |
| 514 | } |
| 515 | |
| 516 | template <typename Char, typename OutputIt, typename T, |
| 517 | FMT_ENABLE_IF(std::is_convertible<T, std_string_view<char>>::value)> |
| 518 | inline auto write_range_entry(OutputIt out, const T& str) -> OutputIt { |
| 519 | auto sv = std_string_view<Char>(str); |
| 520 | return write_range_entry<Char>(out, basic_string_view<Char>(sv)); |
| 521 | } |
| 522 | |
| 523 | template <typename Char, typename OutputIt, typename Arg, |
| 524 | FMT_ENABLE_IF(std::is_same<Arg, Char>::value)> |
| 525 | OutputIt write_range_entry(OutputIt out, const Arg v) { |
| 526 | *out++ = '\''; |
| 527 | *out++ = v; |
| 528 | *out++ = '\''; |
| 529 | return out; |
| 530 | } |
| 531 | |
| 532 | template < |
| 533 | typename Char, typename OutputIt, typename Arg, |
| 534 | FMT_ENABLE_IF(!is_std_string_like<typename std::decay<Arg>::type>::value && |
| 535 | !std::is_same<Arg, Char>::value)> |
| 536 | OutputIt write_range_entry(OutputIt out, const Arg& v) { |
| 537 | return write<Char>(out, v); |
| 538 | } |
| 539 | |
| 540 | } // namespace detail |
| 541 | |
| 542 | template <typename T> struct is_tuple_like { |
| 543 | static FMT_CONSTEXPR_DECL const bool value = |
| 544 | detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value; |
| 545 | }; |
| 546 | |
| 547 | template <typename TupleT, typename Char> |
| 548 | struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> { |
| 549 | private: |
| 550 | // C++11 generic lambda for format(). |
| 551 | template <typename FormatContext> struct format_each { |
| 552 | template <typename T> void operator()(const T& v) { |
| 553 | if (i > 0) out = detail::write_delimiter(out); |
| 554 | out = detail::write_range_entry<Char>(out, v); |
| 555 | ++i; |
| 556 | } |
| 557 | int i; |
| 558 | typename FormatContext::iterator& out; |
| 559 | }; |
| 560 | |
| 561 | public: |
| 562 | template <typename ParseContext> |
| 563 | FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { |
| 564 | return ctx.begin(); |
| 565 | } |
| 566 | |
| 567 | template <typename FormatContext = format_context> |
| 568 | auto format(const TupleT& values, FormatContext& ctx) -> decltype(ctx.out()) { |
| 569 | auto out = ctx.out(); |
| 570 | *out++ = '('; |
| 571 | detail::for_each(values, format_each<FormatContext>{0, out}); |
| 572 | *out++ = ')'; |
| 573 | return out; |
| 574 | } |
| 575 | }; |
| 576 | |
| 577 | template <typename T, typename Char> struct is_range { |
| 578 | static FMT_CONSTEXPR_DECL const bool value = |
| 579 | detail::is_range_<T>::value && !detail::is_std_string_like<T>::value && |
| 580 | !detail::is_map<T>::value && |
| 581 | !std::is_convertible<T, std::basic_string<Char>>::value && |
| 582 | !std::is_constructible<detail::std_string_view<Char>, T>::value; |
| 583 | }; |
| 584 | |
| 585 | template <typename T, typename Char> |
| 586 | struct formatter< |
| 587 | T, Char, |
| 588 | enable_if_t< |
| 589 | fmt::is_range<T, Char>::value |
| 590 | // Workaround a bug in MSVC 2019 and earlier. |
| 591 | #if !FMT_MSC_VER |
| 592 | && (is_formattable<detail::value_type<T>, Char>::value || |
| 593 | detail::has_fallback_formatter<detail::value_type<T>, Char>::value) |
| 594 | #endif |
| 595 | >> { |
| 596 | template <typename ParseContext> |
| 597 | FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { |
| 598 | return ctx.begin(); |
| 599 | } |
| 600 | |
| 601 | template < |
| 602 | typename FormatContext, typename U, |
| 603 | FMT_ENABLE_IF( |
| 604 | std::is_same<U, conditional_t<detail::has_const_begin_end<T>::value, |
| 605 | const T, T>>::value)> |
| 606 | auto format(U& range, FormatContext& ctx) -> decltype(ctx.out()) { |
| 607 | #ifdef FMT_DEPRECATED_BRACED_RANGES |
| 608 | Char prefix = '{'; |
| 609 | Char postfix = '}'; |
| 610 | #else |
| 611 | Char prefix = detail::is_set<T>::value ? '{' : '['; |
| 612 | Char postfix = detail::is_set<T>::value ? '}' : ']'; |
| 613 | #endif |
| 614 | auto out = ctx.out(); |
| 615 | *out++ = prefix; |
| 616 | int i = 0; |
| 617 | auto it = std::begin(range); |
| 618 | auto end = std::end(range); |
| 619 | for (; it != end; ++it) { |
| 620 | if (i > 0) out = detail::write_delimiter(out); |
| 621 | out = detail::write_range_entry<Char>(out, *it); |
| 622 | ++i; |
| 623 | } |
| 624 | *out++ = postfix; |
| 625 | return out; |
| 626 | } |
| 627 | }; |
| 628 | |
| 629 | template <typename T, typename Char> |
| 630 | struct formatter< |
| 631 | T, Char, |
| 632 | enable_if_t< |
| 633 | detail::is_map<T>::value |
| 634 | // Workaround a bug in MSVC 2019 and earlier. |
| 635 | #if !FMT_MSC_VER |
| 636 | && (is_formattable<detail::value_type<T>, Char>::value || |
| 637 | detail::has_fallback_formatter<detail::value_type<T>, Char>::value) |
| 638 | #endif |
| 639 | >> { |
| 640 | template <typename ParseContext> |
| 641 | FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { |
| 642 | return ctx.begin(); |
| 643 | } |
| 644 | |
| 645 | template < |
| 646 | typename FormatContext, typename U, |
| 647 | FMT_ENABLE_IF( |
| 648 | std::is_same<U, conditional_t<detail::has_const_begin_end<T>::value, |
| 649 | const T, T>>::value)> |
| 650 | auto format(U& map, FormatContext& ctx) -> decltype(ctx.out()) { |
| 651 | auto out = ctx.out(); |
| 652 | *out++ = '{'; |
| 653 | int i = 0; |
| 654 | for (const auto& item : map) { |
| 655 | if (i > 0) out = detail::write_delimiter(out); |
| 656 | out = detail::write_range_entry<Char>(out, item.first); |
| 657 | *out++ = ':'; |
| 658 | *out++ = ' '; |
| 659 | out = detail::write_range_entry<Char>(out, item.second); |
| 660 | ++i; |
| 661 | } |
| 662 | *out++ = '}'; |
| 663 | return out; |
| 664 | } |
| 665 | }; |
| 666 | |
| 667 | template <typename Char, typename... T> struct tuple_join_view : detail::view { |
| 668 | const std::tuple<T...>& tuple; |
| 669 | basic_string_view<Char> sep; |
| 670 | |
| 671 | tuple_join_view(const std::tuple<T...>& t, basic_string_view<Char> s) |
| 672 | : tuple(t), sep{s} {} |
| 673 | }; |
| 674 | |
| 675 | template <typename Char, typename... T> |
| 676 | using tuple_arg_join = tuple_join_view<Char, T...>; |
| 677 | |
| 678 | // Define FMT_TUPLE_JOIN_SPECIFIERS to enable experimental format specifiers |
| 679 | // support in tuple_join. It is disabled by default because of issues with |
| 680 | // the dynamic width and precision. |
| 681 | #ifndef FMT_TUPLE_JOIN_SPECIFIERS |
| 682 | # define FMT_TUPLE_JOIN_SPECIFIERS 0 |
| 683 | #endif |
| 684 | |
| 685 | template <typename Char, typename... T> |
| 686 | struct formatter<tuple_join_view<Char, T...>, Char> { |
| 687 | template <typename ParseContext> |
| 688 | FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) { |
| 689 | return do_parse(ctx, std::integral_constant<size_t, sizeof...(T)>()); |
| 690 | } |
| 691 | |
| 692 | template <typename FormatContext> |
| 693 | auto format(const tuple_join_view<Char, T...>& value, |
| 694 | FormatContext& ctx) const -> typename FormatContext::iterator { |
| 695 | return do_format(value, ctx, |
| 696 | std::integral_constant<size_t, sizeof...(T)>()); |
| 697 | } |
| 698 | |
| 699 | private: |
| 700 | std::tuple<formatter<typename std::decay<T>::type, Char>...> formatters_; |
| 701 | |
| 702 | template <typename ParseContext> |
| 703 | FMT_CONSTEXPR auto do_parse(ParseContext& ctx, |
| 704 | std::integral_constant<size_t, 0>) |
| 705 | -> decltype(ctx.begin()) { |
| 706 | return ctx.begin(); |
| 707 | } |
| 708 | |
| 709 | template <typename ParseContext, size_t N> |
| 710 | FMT_CONSTEXPR auto do_parse(ParseContext& ctx, |
| 711 | std::integral_constant<size_t, N>) |
| 712 | -> decltype(ctx.begin()) { |
| 713 | auto end = ctx.begin(); |
| 714 | #if FMT_TUPLE_JOIN_SPECIFIERS |
| 715 | end = std::get<sizeof...(T) - N>(formatters_).parse(ctx); |
| 716 | if (N > 1) { |
| 717 | auto end1 = do_parse(ctx, std::integral_constant<size_t, N - 1>()); |
| 718 | if (end != end1) |
| 719 | FMT_THROW(format_error("incompatible format specs for tuple elements")); |
| 720 | } |
| 721 | #endif |
| 722 | return end; |
| 723 | } |
| 724 | |
| 725 | template <typename FormatContext> |
| 726 | auto do_format(const tuple_join_view<Char, T...>&, FormatContext& ctx, |
| 727 | std::integral_constant<size_t, 0>) const -> |
| 728 | typename FormatContext::iterator { |
| 729 | return ctx.out(); |
| 730 | } |
| 731 | |
| 732 | template <typename FormatContext, size_t N> |
| 733 | auto do_format(const tuple_join_view<Char, T...>& value, FormatContext& ctx, |
| 734 | std::integral_constant<size_t, N>) const -> |
| 735 | typename FormatContext::iterator { |
| 736 | auto out = std::get<sizeof...(T) - N>(formatters_) |
| 737 | .format(std::get<sizeof...(T) - N>(value.tuple), ctx); |
| 738 | if (N > 1) { |
| 739 | out = std::copy(value.sep.begin(), value.sep.end(), out); |
| 740 | ctx.advance_to(out); |
| 741 | return do_format(value, ctx, std::integral_constant<size_t, N - 1>()); |
| 742 | } |
| 743 | return out; |
| 744 | } |
| 745 | }; |
| 746 | |
| 747 | FMT_MODULE_EXPORT_BEGIN |
| 748 | |
| 749 | /** |
| 750 | \rst |
| 751 | Returns an object that formats `tuple` with elements separated by `sep`. |
| 752 | |
| 753 | **Example**:: |
| 754 | |
| 755 | std::tuple<int, char> t = {1, 'a'}; |
| 756 | fmt::print("{}", fmt::join(t, ", ")); |
| 757 | // Output: "1, a" |
| 758 | \endrst |
| 759 | */ |
| 760 | template <typename... T> |
| 761 | FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple, string_view sep) |
| 762 | -> tuple_join_view<char, T...> { |
| 763 | return {tuple, sep}; |
| 764 | } |
| 765 | |
| 766 | template <typename... T> |
| 767 | FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple, |
| 768 | basic_string_view<wchar_t> sep) |
| 769 | -> tuple_join_view<wchar_t, T...> { |
| 770 | return {tuple, sep}; |
| 771 | } |
| 772 | |
| 773 | /** |
| 774 | \rst |
| 775 | Returns an object that formats `initializer_list` with elements separated by |
| 776 | `sep`. |
| 777 | |
| 778 | **Example**:: |
| 779 | |
| 780 | fmt::print("{}", fmt::join({1, 2, 3}, ", ")); |
| 781 | // Output: "1, 2, 3" |
| 782 | \endrst |
| 783 | */ |
| 784 | template <typename T> |
| 785 | auto join(std::initializer_list<T> list, string_view sep) |
| 786 | -> join_view<const T*, const T*> { |
| 787 | return join(std::begin(list), std::end(list), sep); |
| 788 | } |
| 789 | |
| 790 | FMT_MODULE_EXPORT_END |
| 791 | FMT_END_NAMESPACE |
| 792 | |
| 793 | #endif // FMT_RANGES_H_ |