| 1 | /*++ |
| 2 | |
| 3 | Copyright (c) Microsoft. All rights reserved. |
| 4 | |
| 5 | Module Name: |
| 6 | |
| 7 | stringshared.h |
| 8 | |
| 9 | Abstract: |
| 10 | |
| 11 | This file contains shared string helper functions. |
| 12 | |
| 13 | --*/ |
| 14 | |
| 15 | #pragma once |
| 16 | #include <algorithm> |
| 17 | #include <cctype> |
| 18 | #include <cwctype> |
| 19 | #include <set> |
| 20 | #include <vector> |
| 21 | #include <string> |
| 22 | #include <string_view> |
| 23 | #include <sstream> |
| 24 | #include <fstream> |
| 25 | #include <optional> |
| 26 | #include <gsl/gsl> |
| 27 | #include <format> |
| 28 | #include <source_location> |
| 29 | #include <type_traits> |
| 30 | |
| 31 | #ifndef WIN32 |
| 32 | #include <string.h> |
| 33 | #include "lxdef.h" |
| 34 | #include "lxwil.h" |
| 35 | #include "defs.h" |
| 36 | #else |
| 37 | #include "string.hpp" |
| 38 | #endif |
| 39 | |
| 40 | #define STRING_TO_WIDE_STRING_INNER(_str) L##_str |
| 41 | #define STRING_TO_WIDE_STRING(_str) STRING_TO_WIDE_STRING_INNER(_str) |
| 42 | |
| 43 | #define GUID_FORMAT_STRING "{%08x-%04hx-%04hx-%02x%02x-%02x%02x%02x%02x%02x%02x}" |
| 44 | #define GUID_SSCANF_STRING "%8x-%4hx-%4hx-%2hhx%2hhx-%2hhx%2hhx%2hhx%2hhx%2hhx%2hhx" |
| 45 | #define GUID_BRACES_SSCANF_STRING "{" GUID_SSCANF_STRING "}" |
| 46 | |
| 47 | #define MAC_ADDRESS_FORMAT_STRING "%02X%c%02X%c%02X%c%02X%c%02X%c%02X" |
| 48 | |
| 49 | namespace wsl::shared::string { |
| 50 | |
| 51 | using MacAddress = std::array<std::uint8_t, 6>; |
| 52 | |
| 53 | inline unsigned int CopyToSpan(const std::string_view String, const gsl::span<gsl::byte> Span, size_t& Offset) |
| 54 | { |
| 55 | gsl::copy(as_bytes(gsl::make_span(String.data(), String.size())), Span.subspan(Offset)); |
| 56 | Span[Offset + String.size()] = gsl::byte{0}; |
| 57 | const auto PreviousOffset = gsl::narrow_cast<unsigned int>(Offset); |
| 58 | Offset += String.size() + 1; |
| 59 | return PreviousOffset; |
| 60 | } |
| 61 | |
| 62 | template <class T> |
| 63 | inline bool EndsWith(const std::basic_string<T>& String, const std::basic_string_view<T> Suffix) |
| 64 | { |
| 65 | if (Suffix.size() > String.size()) |
| 66 | { |
| 67 | return false; |
| 68 | } |
| 69 | |
| 70 | return std::equal(Suffix.rbegin(), Suffix.rend(), String.rbegin()); |
| 71 | } |
| 72 | |
| 73 | // Lowercases ASCII 'A'-'Z' only, leaving every other code unit untouched. Unlike std::tolower this is |
| 74 | // locale-independent (no Turkish-'I' surprises) and has no signed-char UB, which is what you want when |
| 75 | // normalizing ASCII protocol tokens such as buildx CSV keys. |
| 76 | template <class T> |
| 77 | inline std::basic_string<T> AsciiToLower(const std::basic_string_view<T>& String) |
| 78 | { |
| 79 | std::basic_string<T> Result(String); |
| 80 | for (auto& Ch : Result) |
| 81 | { |
| 82 | if (Ch >= static_cast<T>('A') && Ch <= static_cast<T>('Z')) |
| 83 | { |
| 84 | Ch = static_cast<T>(Ch - static_cast<T>('A') + static_cast<T>('a')); |
| 85 | } |
| 86 | } |
| 87 | |
| 88 | return Result; |
| 89 | } |
| 90 | |
| 91 | // Trims leading and trailing ASCII whitespace (space, tab, CR, LF, vertical tab, form feed), matching |
| 92 | // the ASCII subset of Go's strings.TrimSpace. Returns a view into the input, so the input must outlive |
| 93 | // the result. The stdlib has no trim, so this centralizes the find_first/last_not_of idiom. |
| 94 | template <class T> |
| 95 | inline std::basic_string_view<T> TrimAscii(const std::basic_string_view<T>& String) |
| 96 | { |
| 97 | constexpr T Whitespace[] = { |
| 98 | static_cast<T>(' '), static_cast<T>('\t'), static_cast<T>('\r'), static_cast<T>('\n'), static_cast<T>('\v'), static_cast<T>('\f'), static_cast<T>('\0')}; |
| 99 | |
| 100 | const auto First = String.find_first_not_of(Whitespace); |
| 101 | if (First == std::basic_string_view<T>::npos) |
| 102 | { |
| 103 | return {}; |
| 104 | } |
| 105 | |
| 106 | const auto Last = String.find_last_not_of(Whitespace); |
| 107 | return String.substr(First, Last - First + 1); |
| 108 | } |
| 109 | |
| 110 | template <class T, class TInput> |
| 111 | inline std::basic_string<T> Join(const std::vector<TInput>& Input, T Separator) |
| 112 | { |
| 113 | std::basic_stringstream<T> Out; |
| 114 | for (size_t Index = 0; Index < Input.size(); Index += 1) |
| 115 | { |
| 116 | if (Index != 0) |
| 117 | { |
| 118 | Out << Separator; |
| 119 | } |
| 120 | |
| 121 | Out << Input[Index]; |
| 122 | } |
| 123 | |
| 124 | return Out.str(); |
| 125 | } |
| 126 | |
| 127 | template <class T> |
| 128 | inline std::vector<std::basic_string<T>> Split(const std::basic_string<T>& String, T Separator) |
| 129 | { |
| 130 | std::vector<std::basic_string<T>> Output; |
| 131 | std::basic_istringstream<T> Input(String); |
| 132 | std::basic_string<T> Entry; |
| 133 | while (std::getline(Input, Entry, Separator)) |
| 134 | { |
| 135 | if (!Entry.empty()) |
| 136 | { |
| 137 | Output.emplace_back(std::move(Entry)); |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | return Output; |
| 142 | } |
| 143 | |
| 144 | template <class T> |
| 145 | inline std::vector<std::basic_string_view<T>> SplitPreserveEmpty(const std::basic_string_view<T> String, T Separator) |
| 146 | { |
| 147 | std::vector<std::basic_string_view<T>> Output; |
| 148 | size_t Start = 0; |
| 149 | while (Start <= String.size()) |
| 150 | { |
| 151 | const auto End = String.find(Separator, Start); |
| 152 | if (End == std::basic_string_view<T>::npos) |
| 153 | { |
| 154 | Output.emplace_back(String.substr(Start)); |
| 155 | break; |
| 156 | } |
| 157 | |
| 158 | Output.emplace_back(String.substr(Start, End - Start)); |
| 159 | Start = End + 1; |
| 160 | } |
| 161 | |
| 162 | return Output; |
| 163 | } |
| 164 | |
| 165 | template <class T> |
| 166 | inline std::vector<std::basic_string<T>> SplitByMultipleSeparators(const std::basic_string<T>& String, const std::basic_string<T>& Separators) |
| 167 | { |
| 168 | std::vector<std::basic_string<T>> Output; |
| 169 | size_t CurrentIndex = 0; |
| 170 | |
| 171 | while (true) |
| 172 | { |
| 173 | CurrentIndex = String.find_first_not_of(Separators, CurrentIndex); |
| 174 | if (CurrentIndex == std::string::npos) |
| 175 | { |
| 176 | break; |
| 177 | } |
| 178 | |
| 179 | const size_t NextSeparator = String.find_first_of(Separators, CurrentIndex); |
| 180 | |
| 181 | if (NextSeparator == std::string::npos) |
| 182 | { |
| 183 | Output.emplace_back(std::move(String.substr(CurrentIndex))); |
| 184 | break; |
| 185 | } |
| 186 | else |
| 187 | { |
| 188 | Output.emplace_back(std::move(String.substr(CurrentIndex, NextSeparator - CurrentIndex))); |
| 189 | CurrentIndex = NextSeparator; |
| 190 | } |
| 191 | } |
| 192 | |
| 193 | return Output; |
| 194 | } |
| 195 | |
| 196 | // Splits a single CSV record into fields using the grammar Go's encoding/csv applies to one record |
| 197 | // (which docker buildx relies on via go-csvvalue), so a spec is parsed the way buildx would: |
| 198 | // - fields are separated by commas; |
| 199 | // - a field may be wrapped in double quotes, in which case a comma is a literal character and a |
| 200 | // doubled quote ("") is a single literal quote; |
| 201 | // - an unquoted field may not contain a double quote (Go's non-lazy ErrBareQuote). |
| 202 | // Returns std::nullopt when the record is malformed: an unterminated quoted field, text immediately |
| 203 | // after a closing quote, or a bare quote in an unquoted field. |
| 204 | // |
| 205 | // Deviation from Go/RFC 4180: this parses exactly one record. Go would treat an unquoted CR/LF as a |
| 206 | // record separator; here CR/LF are always ordinary field characters (never a record separator), which |
| 207 | // is what a single-line command-line spec needs. |
| 208 | template <class T> |
| 209 | inline std::optional<std::vector<std::basic_string<T>>> SplitCsvFields(const std::basic_string<T>& Record) |
| 210 | { |
| 211 | constexpr T Quote = static_cast<T>('"'); |
| 212 | constexpr T Comma = static_cast<T>(','); |
| 213 | |
| 214 | std::vector<std::basic_string<T>> Fields; |
| 215 | std::basic_string<T> Field; |
| 216 | const size_t Length = Record.size(); |
| 217 | size_t Index = 0; |
| 218 | |
| 219 | while (true) |
| 220 | { |
| 221 | Field.clear(); |
| 222 | if (Index < Length && Record[Index] == Quote) |
| 223 | { |
| 224 | ++Index; |
| 225 | bool Closed = false; |
| 226 | while (Index < Length) |
| 227 | { |
| 228 | if (Record[Index] == Quote) |
| 229 | { |
| 230 | // A doubled quote inside a quoted field is a single literal quote. |
| 231 | if (Index + 1 < Length && Record[Index + 1] == Quote) |
| 232 | { |
| 233 | Field.push_back(Quote); |
| 234 | Index += 2; |
| 235 | continue; |
| 236 | } |
| 237 | |
| 238 | ++Index; |
| 239 | Closed = true; |
| 240 | break; |
| 241 | } |
| 242 | |
| 243 | Field.push_back(Record[Index]); |
| 244 | ++Index; |
| 245 | } |
| 246 | |
| 247 | if (!Closed) |
| 248 | { |
| 249 | return std::nullopt; // unterminated quoted field |
| 250 | } |
| 251 | |
| 252 | // After a closing quote only a comma (end of field) or end of record is valid. |
| 253 | if (Index < Length && Record[Index] != Comma) |
| 254 | { |
| 255 | return std::nullopt; |
| 256 | } |
| 257 | } |
| 258 | else |
| 259 | { |
| 260 | while (Index < Length && Record[Index] != Comma) |
| 261 | { |
| 262 | // Go (non-lazy) rejects a bare double quote in an unquoted field (ErrBareQuote). |
| 263 | if (Record[Index] == Quote) |
| 264 | { |
| 265 | return std::nullopt; |
| 266 | } |
| 267 | |
| 268 | Field.push_back(Record[Index]); |
| 269 | ++Index; |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | Fields.push_back(Field); |
| 274 | if (Index >= Length) |
| 275 | { |
| 276 | break; |
| 277 | } |
| 278 | |
| 279 | ++Index; // consume the ',' and start the next field |
| 280 | } |
| 281 | |
| 282 | return Fields; |
| 283 | } |
| 284 | |
| 285 | // CSV-escapes a single field for round-tripping through JoinCsvFields/SplitCsvFields: if the field |
| 286 | // contains a comma, a double quote, CR, LF, or a leading/trailing space it is wrapped in double quotes |
| 287 | // with each embedded quote doubled; otherwise it is returned unchanged. This is not a byte-for-byte |
| 288 | // match of Go's encoding/csv writer (which quotes only a leading space and leaves an empty field |
| 289 | // unquoted); it is the minimal quoting needed for every field to parse back via SplitCsvFields. |
| 290 | template <class T> |
| 291 | inline std::basic_string<T> CsvEscapeField(const std::basic_string<T>& Field) |
| 292 | { |
| 293 | constexpr T Quote = static_cast<T>('"'); |
| 294 | const T Special[] = {static_cast<T>(','), Quote, static_cast<T>('\r'), static_cast<T>('\n'), static_cast<T>(0)}; |
| 295 | |
| 296 | const bool NeedsQuote = Field.find_first_of(Special) != std::basic_string<T>::npos || |
| 297 | (!Field.empty() && (Field.front() == static_cast<T>(' ') || Field.back() == static_cast<T>(' '))); |
| 298 | if (!NeedsQuote) |
| 299 | { |
| 300 | return Field; |
| 301 | } |
| 302 | |
| 303 | std::basic_string<T> Result; |
| 304 | Result.reserve(Field.size() + 2); |
| 305 | Result.push_back(Quote); |
| 306 | for (const T Ch : Field) |
| 307 | { |
| 308 | if (Ch == Quote) |
| 309 | { |
| 310 | Result.push_back(Quote); |
| 311 | } |
| 312 | |
| 313 | Result.push_back(Ch); |
| 314 | } |
| 315 | |
| 316 | Result.push_back(Quote); |
| 317 | return Result; |
| 318 | } |
| 319 | |
| 320 | // Joins fields into a single CSV record, escaping each field as needed (see CsvEscapeField). The |
| 321 | // result parses back to the original fields via SplitCsvFields. |
| 322 | template <class T> |
| 323 | inline std::basic_string<T> JoinCsvFields(const std::vector<std::basic_string<T>>& Fields) |
| 324 | { |
| 325 | std::basic_string<T> Record; |
| 326 | for (size_t Index = 0; Index < Fields.size(); ++Index) |
| 327 | { |
| 328 | if (Index != 0) |
| 329 | { |
| 330 | Record.push_back(static_cast<T>(',')); |
| 331 | } |
| 332 | |
| 333 | Record += CsvEscapeField(Fields[Index]); |
| 334 | } |
| 335 | |
| 336 | return Record; |
| 337 | } |
| 338 | |
| 339 | inline const char* FromSpan(gsl::span<gsl::byte> Span, size_t Offset = 0) |
| 340 | { |
| 341 | THROW_INVALID_ARG_IF(Span.size() < Offset); |
| 342 | |
| 343 | Span = Span.subspan(Offset); |
| 344 | const std::string_view String{reinterpret_cast<const char*>(Span.data()), Span.size()}; |
| 345 | const auto End = String.find('\0'); |
| 346 | THROW_INVALID_ARG_IF(End == String.npos); |
| 347 | |
| 348 | return String.data(); |
| 349 | } |
| 350 | |
| 351 | template <typename T> |
| 352 | inline const char* FromMessageBuffer(const gsl::span<gsl::byte>& Span) |
| 353 | { |
| 354 | return FromSpan(Span, offsetof(T, Buffer)); |
| 355 | } |
| 356 | |
| 357 | inline std::vector<const char*> StringPointersFromArray(const std::vector<std::string>& Strings, bool insertNull) |
| 358 | { |
| 359 | std::vector<const char*> result(Strings.size()); |
| 360 | std::transform(Strings.begin(), Strings.end(), result.begin(), [](const std::string& str) { return str.c_str(); }); |
| 361 | |
| 362 | if (insertNull) |
| 363 | { |
| 364 | result.push_back(nullptr); |
| 365 | } |
| 366 | |
| 367 | return result; |
| 368 | } |
| 369 | |
| 370 | inline std::vector<std::string> ArrayFromSpan(gsl::span<const gsl::byte> Span, size_t Offset = 0) |
| 371 | { |
| 372 | THROW_INVALID_ARG_IF(Span.size() < Offset); |
| 373 | |
| 374 | Span = Span.subspan(Offset); |
| 375 | |
| 376 | std::vector<std::string> Result; |
| 377 | |
| 378 | auto it = Span.begin(); |
| 379 | |
| 380 | auto readSize = [&]() { |
| 381 | THROW_INVALID_ARG_IF(Span.end() - it < sizeof(int32_t)); |
| 382 | |
| 383 | auto size = *reinterpret_cast<const int32_t*>(&*it); |
| 384 | it += sizeof(int32_t); |
| 385 | |
| 386 | return size; |
| 387 | }; |
| 388 | |
| 389 | while (true) |
| 390 | { |
| 391 | auto size = readSize(); |
| 392 | if (size == -1) |
| 393 | { |
| 394 | break; |
| 395 | } |
| 396 | |
| 397 | THROW_INVALID_ARG_IF(size < 0); |
| 398 | THROW_INVALID_ARG_IF(size > Span.end() - it); |
| 399 | |
| 400 | const char* begin = reinterpret_cast<const char*>(&*it); |
| 401 | Result.emplace_back(begin, size); |
| 402 | |
| 403 | it += size; |
| 404 | } |
| 405 | |
| 406 | return Result; |
| 407 | } |
| 408 | |
| 409 | constexpr auto c_defaultHostName = "localhost"; |
| 410 | |
| 411 | inline std::string CleanHostname(const std::string_view Hostname) |
| 412 | { |
| 413 | // A valid Linux hostname: |
| 414 | // - is composed of alphanumeric characters, hyphens, and up to one dot |
| 415 | // - cannot start or end with a hyphen or a dot |
| 416 | // - cannot have a hyphen follow a dot or another hyphen |
| 417 | // - cannot be empty |
| 418 | // - cannot be longer than 64 chars |
| 419 | bool dot = false; |
| 420 | std::string result; |
| 421 | for (const auto e : Hostname) |
| 422 | { |
| 423 | if (e == '.') |
| 424 | { |
| 425 | // There can be only one '.', it cannot be the first character, and it cannot follow a '-'. |
| 426 | if (dot || result.empty() || result.back() == '-') |
| 427 | { |
| 428 | continue; |
| 429 | } |
| 430 | |
| 431 | dot = true; |
| 432 | result += e; |
| 433 | } |
| 434 | else if (e == '-') |
| 435 | { |
| 436 | // A '-' cannot be the first character, or follow another '-' or a '.'. |
| 437 | if (result.empty() || result.back() == '-' || result.back() == '.') |
| 438 | { |
| 439 | continue; |
| 440 | } |
| 441 | |
| 442 | result += e; |
| 443 | } |
| 444 | else if (isalnum(e)) |
| 445 | { |
| 446 | result += e; |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | if (result.size() > 64) |
| 451 | { |
| 452 | result.resize(64); |
| 453 | } |
| 454 | |
| 455 | while (!result.empty() && (result.back() == '.' || result.back() == '-')) |
| 456 | { |
| 457 | result.pop_back(); |
| 458 | } |
| 459 | |
| 460 | if (result.empty()) |
| 461 | { |
| 462 | result = c_defaultHostName; |
| 463 | } |
| 464 | |
| 465 | return result; |
| 466 | } |
| 467 | |
| 468 | template <typename T> |
| 469 | inline size_t Compare(const std::basic_string_view<T> String1, const std::basic_string_view<T> String2, bool CaseInsensitive = false) |
| 470 | { |
| 471 | // This method counts the number of matching characters at the beginning of two strings. |
| 472 | std::basic_string_view<T> firstString; |
| 473 | std::basic_string_view<T> secondString; |
| 474 | if (String1.size() <= String2.size()) |
| 475 | { |
| 476 | firstString = String1; |
| 477 | secondString = String2; |
| 478 | } |
| 479 | else |
| 480 | { |
| 481 | firstString = String2; |
| 482 | secondString = String1; |
| 483 | } |
| 484 | |
| 485 | if (CaseInsensitive) |
| 486 | { |
| 487 | std::locale loc{"C"}; |
| 488 | auto result = std::mismatch(firstString.begin(), firstString.end(), secondString.begin(), [loc](T a, T b) { |
| 489 | return (std::tolower(a, loc) == std::tolower(b, loc)); |
| 490 | }); |
| 491 | |
| 492 | return (result.first - firstString.begin()); |
| 493 | } |
| 494 | else |
| 495 | { |
| 496 | auto result = std::mismatch(firstString.begin(), firstString.end(), secondString.begin()); |
| 497 | return (result.first - firstString.begin()); |
| 498 | } |
| 499 | } |
| 500 | |
| 501 | inline bool IsEqual(const std::string_view String1, const std::string_view String2, bool CaseInsensitive = false) |
| 502 | { |
| 503 | if (String1.size() != String2.size()) |
| 504 | { |
| 505 | return false; |
| 506 | } |
| 507 | |
| 508 | return (Compare(String1, String2, CaseInsensitive) == String1.size()); |
| 509 | } |
| 510 | |
| 511 | inline bool IsEqual(const std::wstring_view String1, const std::wstring_view String2, bool CaseInsensitive = false) |
| 512 | { |
| 513 | if (String1.size() != String2.size()) |
| 514 | { |
| 515 | return false; |
| 516 | } |
| 517 | |
| 518 | return (Compare(String1, String2, CaseInsensitive) == String1.size()); |
| 519 | } |
| 520 | |
| 521 | template <class T> |
| 522 | inline bool IsEmptyOrWhitespace(const std::basic_string_view<T> String) |
| 523 | { |
| 524 | return String.empty() || std::all_of(String.begin(), String.end(), [](T Ch) { |
| 525 | if constexpr (std::is_same_v<T, wchar_t>) |
| 526 | { |
| 527 | return std::iswspace(static_cast<wint_t>(Ch)); |
| 528 | } |
| 529 | else |
| 530 | { |
| 531 | return std::isspace(static_cast<unsigned char>(Ch)); |
| 532 | } |
| 533 | }); |
| 534 | } |
| 535 | |
| 536 | // Parses a boolean from a string. By default only "1"/"0" and "true"/"false" |
| 537 | // (case-insensitive) are recognized. When AllowExtendedForms is true the single |
| 538 | // character forms "t"/"f" (case-insensitive) are also accepted, matching the full |
| 539 | // set understood by Go's strconv.ParseBool (and therefore the Docker CLI). |
| 540 | template <typename T> |
| 541 | inline std::optional<bool> ParseBool(const T* String, bool AllowExtendedForms = false) |
| 542 | { |
| 543 | if (!String) |
| 544 | { |
| 545 | return {}; |
| 546 | } |
| 547 | |
| 548 | const std::basic_string_view<T> StringView(String); |
| 549 | constexpr T One[] = {T('1'), T('\0')}; |
| 550 | constexpr T True[] = {T('t'), T('r'), T('u'), T('e'), T('\0')}; |
| 551 | constexpr T ShortTrue[] = {T('t'), T('\0')}; |
| 552 | if (IsEqual(StringView, One) || IsEqual(StringView, True, true) || (AllowExtendedForms && IsEqual(StringView, ShortTrue, true))) |
| 553 | { |
| 554 | return true; |
| 555 | } |
| 556 | |
| 557 | constexpr T Zero[] = {T('0'), T('\0')}; |
| 558 | constexpr T False[] = {T('f'), T('a'), T('l'), T('s'), T('e'), T('\0')}; |
| 559 | constexpr T ShortFalse[] = {T('f'), T('\0')}; |
| 560 | if (IsEqual(StringView, Zero) || IsEqual(StringView, False, true) || (AllowExtendedForms && IsEqual(StringView, ShortFalse, true))) |
| 561 | { |
| 562 | return false; |
| 563 | } |
| 564 | |
| 565 | return {}; |
| 566 | } |
| 567 | |
| 568 | template <typename T> |
| 569 | inline uint64_t ToUInt64(const T* String, T** End = nullptr, int Base = 10); |
| 570 | |
| 571 | template <> |
| 572 | inline uint64_t ToUInt64<char>(const char* String, char** End, int Base) |
| 573 | { |
| 574 | return std::strtoull(String, End, Base); |
| 575 | } |
| 576 | |
| 577 | template <> |
| 578 | inline uint64_t ToUInt64<wchar_t>(const wchar_t* String, wchar_t** End, int Base) |
| 579 | { |
| 580 | return std::wcstoull(String, End, Base); |
| 581 | } |
| 582 | |
| 583 | template <typename T> |
| 584 | inline std::optional<uint64_t> ParseMemorySize(const T* String) |
| 585 | { |
| 586 | if (!String) |
| 587 | { |
| 588 | return {}; |
| 589 | } |
| 590 | |
| 591 | T* End{}; |
| 592 | uint64_t Value = ToUInt64(String, &End, 10); |
| 593 | if (Value == 0) |
| 594 | { |
| 595 | if (String[0] != T('0') || End != String + 1) |
| 596 | { |
| 597 | return {}; |
| 598 | } |
| 599 | } |
| 600 | |
| 601 | const std::basic_string_view<T> Remainder(End); |
| 602 | if (Remainder.empty()) |
| 603 | { |
| 604 | return Value; |
| 605 | } |
| 606 | else if (Remainder.size() > 2) |
| 607 | { |
| 608 | return {}; |
| 609 | } |
| 610 | |
| 611 | constexpr T Bytes[] = {T('B'), T('\0')}; |
| 612 | constexpr T Kilobytes[] = {T('K'), T('B'), T('\0')}; |
| 613 | constexpr T Megabytes[] = {T('M'), T('B'), T('\0')}; |
| 614 | constexpr T Gigabytes[] = {T('G'), T('B'), T('\0')}; |
| 615 | constexpr T Terabytes[] = {T('T'), T('B'), T('\0')}; |
| 616 | const std::array<std::pair<std::basic_string_view<T>, uint64_t>, 5> Units{ |
| 617 | std::make_pair(Bytes, 1ULL), |
| 618 | std::make_pair(Kilobytes, 1ULL << 10), |
| 619 | std::make_pair(Megabytes, 1ULL << 20), |
| 620 | std::make_pair(Gigabytes, 1ULL << 30), |
| 621 | std::make_pair(Terabytes, 1ULL << 40)}; |
| 622 | |
| 623 | for (const auto& [Suffix, Factor] : Units) |
| 624 | { |
| 625 | if ((Remainder == Suffix.substr(0, 1)) || (Remainder == Suffix)) |
| 626 | { |
| 627 | return Value * Factor; |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | return {}; |
| 632 | } |
| 633 | |
| 634 | inline bool StartsWith(const std::string_view String, const std::string_view Prefix, bool CaseInsensitive = false) |
| 635 | { |
| 636 | if (String.size() < Prefix.size()) |
| 637 | { |
| 638 | return false; |
| 639 | } |
| 640 | |
| 641 | return (Compare(String.substr(0, Prefix.size()), Prefix, CaseInsensitive) == Prefix.size()); |
| 642 | } |
| 643 | |
| 644 | inline bool StartsWith(const std::wstring_view String, const std::wstring_view Prefix, bool CaseInsensitive = false) |
| 645 | { |
| 646 | if (String.size() < Prefix.size()) |
| 647 | { |
| 648 | return false; |
| 649 | } |
| 650 | |
| 651 | return (Compare(String.substr(0, Prefix.size()), Prefix, CaseInsensitive) == Prefix.size()); |
| 652 | } |
| 653 | |
| 654 | enum GuidToStringFlags |
| 655 | { |
| 656 | None = 0, |
| 657 | AddBraces = 1, |
| 658 | Uppercase = 2 |
| 659 | }; |
| 660 | |
| 661 | template <typename TChar> |
| 662 | inline std::basic_string<TChar> GuidToString(const GUID& guid, GuidToStringFlags flags = GuidToStringFlags::AddBraces) |
| 663 | { |
| 664 | // N.B. std::string guarantees that the null terminator is always allocated: |
| 665 | // https://en.cppreference.com/w/cpp/string/basic_string/data |
| 666 | std::basic_string<TChar> output(38, '\0'); |
| 667 | |
| 668 | if constexpr (std::is_same_v<TChar, char>) |
| 669 | { |
| 670 | snprintf( |
| 671 | output.data(), |
| 672 | output.size() + 1, |
| 673 | GUID_FORMAT_STRING, |
| 674 | static_cast<unsigned int>(guid.Data1), |
| 675 | guid.Data2, |
| 676 | guid.Data3, |
| 677 | guid.Data4[0], |
| 678 | guid.Data4[1], |
| 679 | guid.Data4[2], |
| 680 | guid.Data4[3], |
| 681 | guid.Data4[4], |
| 682 | guid.Data4[5], |
| 683 | guid.Data4[6], |
| 684 | guid.Data4[7]); |
| 685 | } |
| 686 | else if constexpr (std::is_same_v<TChar, wchar_t>) |
| 687 | { |
| 688 | swprintf( |
| 689 | output.data(), |
| 690 | output.size() + 1, |
| 691 | STRING_TO_WIDE_STRING(GUID_FORMAT_STRING), |
| 692 | static_cast<unsigned int>(guid.Data1), |
| 693 | guid.Data2, |
| 694 | guid.Data3, |
| 695 | guid.Data4[0], |
| 696 | guid.Data4[1], |
| 697 | guid.Data4[2], |
| 698 | guid.Data4[3], |
| 699 | guid.Data4[4], |
| 700 | guid.Data4[5], |
| 701 | guid.Data4[6], |
| 702 | guid.Data4[7]); |
| 703 | } |
| 704 | else |
| 705 | { |
| 706 | static_assert(sizeof(TChar) != sizeof(TChar), "Unsupported character type"); |
| 707 | } |
| 708 | |
| 709 | if (WI_IsFlagClear(flags, GuidToStringFlags::AddBraces)) |
| 710 | { |
| 711 | output.erase(output.begin()); |
| 712 | output.pop_back(); |
| 713 | } |
| 714 | |
| 715 | if (WI_IsFlagSet(flags, GuidToStringFlags::Uppercase)) |
| 716 | { |
| 717 | std::transform(output.begin(), output.end(), output.begin(), toupper); |
| 718 | } |
| 719 | |
| 720 | return output; |
| 721 | } |
| 722 | |
| 723 | template <typename TChar> |
| 724 | inline std::optional<GUID> ToGuid(const TChar* string, std::optional<size_t> length = {}) |
| 725 | { |
| 726 | if (!string) |
| 727 | { |
| 728 | return {}; |
| 729 | } |
| 730 | |
| 731 | if (!length.has_value()) |
| 732 | { |
| 733 | length = std::basic_string<TChar>{string}.size(); |
| 734 | } |
| 735 | |
| 736 | GUID guid; |
| 737 | int result{}; |
| 738 | if constexpr (std::is_same_v<TChar, char>) |
| 739 | { |
| 740 | if (length.value() == 38 && string[0] == '{' && string[37] == '}') |
| 741 | { |
| 742 | result = sscanf( |
| 743 | string, |
| 744 | GUID_BRACES_SSCANF_STRING, |
| 745 | &guid.Data1, |
| 746 | &guid.Data2, |
| 747 | &guid.Data3, |
| 748 | &guid.Data4[0], |
| 749 | &guid.Data4[1], |
| 750 | &guid.Data4[2], |
| 751 | &guid.Data4[3], |
| 752 | &guid.Data4[4], |
| 753 | &guid.Data4[5], |
| 754 | &guid.Data4[6], |
| 755 | &guid.Data4[7]); |
| 756 | } |
| 757 | else if (length.value() == 36) |
| 758 | { |
| 759 | result = sscanf( |
| 760 | string, |
| 761 | GUID_SSCANF_STRING, |
| 762 | &guid.Data1, |
| 763 | &guid.Data2, |
| 764 | &guid.Data3, |
| 765 | &guid.Data4[0], |
| 766 | &guid.Data4[1], |
| 767 | &guid.Data4[2], |
| 768 | &guid.Data4[3], |
| 769 | &guid.Data4[4], |
| 770 | &guid.Data4[5], |
| 771 | &guid.Data4[6], |
| 772 | &guid.Data4[7]); |
| 773 | } |
| 774 | } |
| 775 | else if constexpr (std::is_same_v<TChar, wchar_t>) |
| 776 | { |
| 777 | if (length.value() == 38 && string[0] == '{' && string[37] == '}') |
| 778 | { |
| 779 | result = swscanf( |
| 780 | string, |
| 781 | STRING_TO_WIDE_STRING(GUID_BRACES_SSCANF_STRING), |
| 782 | &guid.Data1, |
| 783 | &guid.Data2, |
| 784 | &guid.Data3, |
| 785 | &guid.Data4[0], |
| 786 | &guid.Data4[1], |
| 787 | &guid.Data4[2], |
| 788 | &guid.Data4[3], |
| 789 | &guid.Data4[4], |
| 790 | &guid.Data4[5], |
| 791 | &guid.Data4[6], |
| 792 | &guid.Data4[7]); |
| 793 | } |
| 794 | else if (length.value() == 36) |
| 795 | { |
| 796 | result = swscanf( |
| 797 | string, |
| 798 | STRING_TO_WIDE_STRING(GUID_SSCANF_STRING), |
| 799 | &guid.Data1, |
| 800 | &guid.Data2, |
| 801 | &guid.Data3, |
| 802 | &guid.Data4[0], |
| 803 | &guid.Data4[1], |
| 804 | &guid.Data4[2], |
| 805 | &guid.Data4[3], |
| 806 | &guid.Data4[4], |
| 807 | &guid.Data4[5], |
| 808 | &guid.Data4[6], |
| 809 | &guid.Data4[7]); |
| 810 | } |
| 811 | } |
| 812 | else |
| 813 | { |
| 814 | static_assert(sizeof(TChar) != sizeof(TChar), "Unsupported character type"); |
| 815 | } |
| 816 | |
| 817 | if (result != 11) |
| 818 | { |
| 819 | return {}; |
| 820 | } |
| 821 | |
| 822 | return guid; |
| 823 | } |
| 824 | |
| 825 | template <typename TChar> |
| 826 | inline std::optional<GUID> ToGuid(const std::basic_string_view<TChar> string) |
| 827 | { |
| 828 | return ToGuid(string.data(), string.size()); |
| 829 | } |
| 830 | |
| 831 | template <typename TChar> |
| 832 | inline std::optional<GUID> ToGuid(const std::basic_string<TChar>& string) |
| 833 | { |
| 834 | return ToGuid(string.data(), string.size()); |
| 835 | } |
| 836 | |
| 837 | template <typename TChar, typename TPath> |
| 838 | inline std::basic_string<TChar> ReadFile(const TPath* path) |
| 839 | { |
| 840 | std::basic_ifstream<TChar> file; |
| 841 | file.exceptions(std::ios::badbit | std::ios::failbit); |
| 842 | |
| 843 | try |
| 844 | { |
| 845 | file.open(path); |
| 846 | return std::basic_string<TChar>{std::istreambuf_iterator<TChar>(file), {}}; |
| 847 | } |
| 848 | catch (...) |
| 849 | { |
| 850 | THROW_LAST_ERROR(); |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | inline std::wstring MultiByteToWide(const char* string) |
| 855 | { |
| 856 | |
| 857 | #ifdef WIN32 |
| 858 | |
| 859 | // This uses MultiByteToWideChar which gets the desired CP_UTF8 behavior |
| 860 | return wsl::windows::common::string::MultiByteToWide(string); |
| 861 | |
| 862 | #else |
| 863 | |
| 864 | if (!string) |
| 865 | { |
| 866 | return {}; |
| 867 | } |
| 868 | |
| 869 | std::mbstate_t state{}; |
| 870 | size_t size = std::mbsrtowcs(nullptr, &string, 0, &state); |
| 871 | THROW_LAST_ERROR_IF(size == -1); |
| 872 | |
| 873 | if (size == 0) |
| 874 | { |
| 875 | return {}; |
| 876 | } |
| 877 | |
| 878 | std::wstring buffer(size, L'\0'); |
| 879 | std::mbsrtowcs(buffer.data(), &string, size, &state); |
| 880 | return buffer; |
| 881 | |
| 882 | #endif // WIN32 |
| 883 | } |
| 884 | |
| 885 | inline std::wstring MultiByteToWide(const std::string& string) |
| 886 | { |
| 887 | return MultiByteToWide(string.c_str()); |
| 888 | } |
| 889 | |
| 890 | inline std::string WideToMultiByte(const wchar_t* string) |
| 891 | { |
| 892 | |
| 893 | #ifdef WIN32 |
| 894 | |
| 895 | // This uses WideCharToMultiByte which gets the desired CP_UTF8 behavior |
| 896 | return wsl::windows::common::string::WideToMultiByte(string); |
| 897 | |
| 898 | #else |
| 899 | |
| 900 | if (!string) |
| 901 | { |
| 902 | return {}; |
| 903 | } |
| 904 | |
| 905 | std::mbstate_t state{}; |
| 906 | size_t size = std::wcsrtombs(nullptr, &string, 0, &state); |
| 907 | THROW_LAST_ERROR_IF(size == -1); |
| 908 | |
| 909 | if (size == 0) |
| 910 | { |
| 911 | return {}; |
| 912 | } |
| 913 | |
| 914 | std::string buffer(size, '\0'); |
| 915 | std::wcsrtombs(buffer.data(), &string, size, &state); |
| 916 | return buffer; |
| 917 | |
| 918 | #endif // WIN32 |
| 919 | } |
| 920 | |
| 921 | inline std::string WideToMultiByte(const std::wstring& string) |
| 922 | { |
| 923 | return WideToMultiByte(string.c_str()); |
| 924 | } |
| 925 | |
| 926 | template <typename T> |
| 927 | inline uint8_t ParseNibble(T HexDigit) |
| 928 | { |
| 929 | // Clearing bit 0x20 will turn a-f to A-F. |
| 930 | return (HexDigit >= '0' && HexDigit <= '9') ? (HexDigit - '0') : ((HexDigit & ~0x20) - 'A' + 10); |
| 931 | } |
| 932 | |
| 933 | template <typename T> |
| 934 | inline std::optional<MacAddress> ParseMacAddressNoThrow(const std::basic_string<T>& Input, T Separator = '\0') |
| 935 | { |
| 936 | if (Input.size() != 17) |
| 937 | { |
| 938 | return {}; |
| 939 | } |
| 940 | |
| 941 | if (Separator == '\0') |
| 942 | { |
| 943 | Separator = Input[2]; |
| 944 | if (Separator != '-' && Separator != ':') |
| 945 | { |
| 946 | return {}; |
| 947 | } |
| 948 | } |
| 949 | |
| 950 | MacAddress result; |
| 951 | for (auto octet = 0; octet < 6; octet++) |
| 952 | { |
| 953 | size_t index = octet * 3; |
| 954 | if (!std::iswxdigit(Input[index]) || !std::iswxdigit(Input[index + 1])) |
| 955 | { |
| 956 | return {}; |
| 957 | } |
| 958 | |
| 959 | if (octet < 5 && Input[index + 2] != Separator) |
| 960 | { |
| 961 | return {}; |
| 962 | } |
| 963 | |
| 964 | result[octet] = ParseNibble(Input[index]) * 16 + ParseNibble(Input[index + 1]); |
| 965 | } |
| 966 | |
| 967 | return result; |
| 968 | } |
| 969 | |
| 970 | template <typename T> |
| 971 | inline MacAddress ParseMacAddress(const std::basic_string<T>& Input, T Separator = '\0') |
| 972 | { |
| 973 | auto result = ParseMacAddressNoThrow(Input, Separator); |
| 974 | |
| 975 | #ifdef WIN32 |
| 976 | THROW_HR_IF(E_INVALIDARG, !result.has_value()); |
| 977 | #else |
| 978 | THROW_ERRNO_IF(EINVAL, !result.has_value()); |
| 979 | #endif |
| 980 | |
| 981 | return result.value(); |
| 982 | } |
| 983 | |
| 984 | template <typename TChar> |
| 985 | inline std::basic_string<TChar> FormatMacAddress(const MacAddress& input, TChar separator) |
| 986 | { |
| 987 | std::basic_string<TChar> output(17, '\0'); |
| 988 | |
| 989 | if constexpr (std::is_same_v<TChar, char>) |
| 990 | { |
| 991 | snprintf( |
| 992 | output.data(), |
| 993 | output.size() + 1, |
| 994 | MAC_ADDRESS_FORMAT_STRING, |
| 995 | input[0], |
| 996 | separator, |
| 997 | input[1], |
| 998 | separator, |
| 999 | input[2], |
| 1000 | separator, |
| 1001 | input[3], |
| 1002 | separator, |
| 1003 | input[4], |
| 1004 | separator, |
| 1005 | input[5]); |
| 1006 | } |
| 1007 | else if constexpr (std::is_same_v<TChar, wchar_t>) |
| 1008 | { |
| 1009 | swprintf( |
| 1010 | output.data(), |
| 1011 | output.size() + 1, |
| 1012 | STRING_TO_WIDE_STRING(MAC_ADDRESS_FORMAT_STRING), |
| 1013 | input[0], |
| 1014 | separator, |
| 1015 | input[1], |
| 1016 | separator, |
| 1017 | input[2], |
| 1018 | separator, |
| 1019 | input[3], |
| 1020 | separator, |
| 1021 | input[4], |
| 1022 | separator, |
| 1023 | input[5]); |
| 1024 | } |
| 1025 | else |
| 1026 | { |
| 1027 | static_assert(sizeof(TChar) != sizeof(TChar), "Unsupported character type"); |
| 1028 | } |
| 1029 | |
| 1030 | return output; |
| 1031 | } |
| 1032 | |
| 1033 | struct CaseInsensitiveCompare |
| 1034 | { |
| 1035 | bool operator()(const std::string& left, const std::string& right) const |
| 1036 | { |
| 1037 | return _stricmp(left.c_str(), right.c_str()) < 0; |
| 1038 | } |
| 1039 | |
| 1040 | bool operator()(const char* left, const char* right) const |
| 1041 | { |
| 1042 | return _stricmp(left, right) < 0; |
| 1043 | } |
| 1044 | |
| 1045 | bool operator()(const wchar_t* left, const wchar_t* right) const |
| 1046 | { |
| 1047 | return _wcsicmp(left, right) < 0; |
| 1048 | } |
| 1049 | |
| 1050 | bool operator()(const std::wstring& left, const std::wstring& right) const |
| 1051 | { |
| 1052 | return _wcsicmp(left.c_str(), right.c_str()) < 0; |
| 1053 | } |
| 1054 | }; |
| 1055 | |
| 1056 | template <typename TChar> |
| 1057 | inline std::basic_string<TChar> Trim(const std::basic_string<TChar>& input) |
| 1058 | { |
| 1059 | constexpr TChar whitespace[] = {TChar(' '), TChar('\t'), TChar('\n'), TChar('\r'), TChar('\f'), TChar('\v'), TChar('\0')}; |
| 1060 | const auto first = input.find_first_not_of(whitespace); |
| 1061 | if (first == std::basic_string<TChar>::npos) |
| 1062 | { |
| 1063 | return {}; |
| 1064 | } |
| 1065 | |
| 1066 | const auto last = input.find_last_not_of(whitespace); |
| 1067 | return input.substr(first, last - first + 1); |
| 1068 | } |
| 1069 | |
| 1070 | template <typename TChar> |
| 1071 | inline std::basic_string<TChar> UnescapeShell(const std::basic_string<TChar>& input) |
| 1072 | { |
| 1073 | enum class Quote |
| 1074 | { |
| 1075 | None, |
| 1076 | Single, |
| 1077 | Double |
| 1078 | }; |
| 1079 | |
| 1080 | Quote quote = Quote::None; |
| 1081 | std::basic_string<TChar> output; |
| 1082 | output.reserve(input.size()); |
| 1083 | |
| 1084 | for (size_t index = 0; index < input.size(); index += 1) |
| 1085 | { |
| 1086 | const auto current = input[index]; |
| 1087 | if (quote == Quote::Single) |
| 1088 | { |
| 1089 | if (current == TChar('\'')) |
| 1090 | { |
| 1091 | quote = Quote::None; |
| 1092 | } |
| 1093 | else |
| 1094 | { |
| 1095 | output.push_back(current); |
| 1096 | } |
| 1097 | |
| 1098 | continue; |
| 1099 | } |
| 1100 | |
| 1101 | if (current == TChar('\'')) |
| 1102 | { |
| 1103 | if (quote == Quote::Double) |
| 1104 | { |
| 1105 | output.push_back(current); |
| 1106 | } |
| 1107 | else |
| 1108 | { |
| 1109 | quote = Quote::Single; |
| 1110 | } |
| 1111 | |
| 1112 | continue; |
| 1113 | } |
| 1114 | |
| 1115 | if (current == TChar('"')) |
| 1116 | { |
| 1117 | quote = (quote == Quote::Double) ? Quote::None : Quote::Double; |
| 1118 | continue; |
| 1119 | } |
| 1120 | |
| 1121 | if (current != TChar('\\')) |
| 1122 | { |
| 1123 | output.push_back(current); |
| 1124 | continue; |
| 1125 | } |
| 1126 | |
| 1127 | if (++index == input.size()) |
| 1128 | { |
| 1129 | // return the original string if the escape is invalid. |
| 1130 | return input; |
| 1131 | } |
| 1132 | |
| 1133 | const auto escaped = input[index]; |
| 1134 | if (quote == Quote::None) |
| 1135 | { |
| 1136 | // "\\\n" out of escape means continue the line. |
| 1137 | if (escaped != TChar('\n')) |
| 1138 | { |
| 1139 | output.push_back(escaped); |
| 1140 | } |
| 1141 | } |
| 1142 | else if (escaped == TChar('"') || escaped == TChar('\\') || escaped == TChar('$') || escaped == TChar('`')) |
| 1143 | { |
| 1144 | output.push_back(escaped); |
| 1145 | } |
| 1146 | else if (escaped != TChar('\n')) |
| 1147 | { |
| 1148 | output.push_back(current); |
| 1149 | output.push_back(escaped); |
| 1150 | } |
| 1151 | } |
| 1152 | |
| 1153 | // return the original string if the escape is invalid. |
| 1154 | return (quote == Quote::None) ? output : input; |
| 1155 | } |
| 1156 | |
| 1157 | } // namespace wsl::shared::string |
| 1158 | |
| 1159 | template <> |
| 1160 | struct std::formatter<std::wstring, char> |
| 1161 | { |
| 1162 | template <typename TCtx> |
| 1163 | static constexpr auto parse(TCtx& ctx) |
| 1164 | { |
| 1165 | return ctx.begin(); |
| 1166 | } |
| 1167 | |
| 1168 | template <typename TCtx> |
| 1169 | auto format(const std::wstring& str, TCtx& ctx) const |
| 1170 | { |
| 1171 | return std::format_to(ctx.out(), "{}", wsl::shared::string::WideToMultiByte(str)); |
| 1172 | } |
| 1173 | }; |
| 1174 | |
| 1175 | template <> |
| 1176 | struct std::formatter<const wchar_t*, char> |
| 1177 | { |
| 1178 | template <typename TCtx> |
| 1179 | static constexpr auto parse(TCtx& ctx) |
| 1180 | { |
| 1181 | return ctx.begin(); |
| 1182 | } |
| 1183 | |
| 1184 | template <typename TCtx> |
| 1185 | auto format(const wchar_t* str, TCtx& ctx) const |
| 1186 | { |
| 1187 | return std::format_to(ctx.out(), "{}", wsl::shared::string::WideToMultiByte(str)); |
| 1188 | } |
| 1189 | }; |
| 1190 | |
| 1191 | template <std::size_t N> |
| 1192 | struct std::formatter<wchar_t[N], char> |
| 1193 | { |
| 1194 | template <typename TCtx> |
| 1195 | static constexpr auto parse(TCtx& ctx) |
| 1196 | { |
| 1197 | return ctx.begin(); |
| 1198 | } |
| 1199 | |
| 1200 | template <typename TCtx> |
| 1201 | auto format(const wchar_t str[N], TCtx& ctx) const |
| 1202 | { |
| 1203 | return std::format_to(ctx.out(), "{}", wsl::shared::string::WideToMultiByte(str)); |
| 1204 | } |
| 1205 | }; |
| 1206 | |
| 1207 | template <> |
| 1208 | struct std::formatter<std::source_location, char> |
| 1209 | { |
| 1210 | template <typename TCtx> |
| 1211 | static constexpr auto parse(TCtx& ctx) |
| 1212 | { |
| 1213 | return ctx.begin(); |
| 1214 | } |
| 1215 | |
| 1216 | template <typename TCtx> |
| 1217 | auto format(const std::source_location& location, TCtx& ctx) const |
| 1218 | { |
| 1219 | return std::format_to(ctx.out(), "{}[{}:{}]", location.function_name(), location.file_name(), location.line()); |
| 1220 | } |
| 1221 | }; |
| 1222 | |
| 1223 | template <> |
| 1224 | struct std::formatter<std::source_location, wchar_t> |
| 1225 | { |
| 1226 | template <typename TCtx> |
| 1227 | static constexpr auto parse(TCtx& ctx) |
| 1228 | { |
| 1229 | return ctx.begin(); |
| 1230 | } |
| 1231 | |
| 1232 | template <typename TCtx> |
| 1233 | auto format(const std::source_location& location, TCtx& ctx) const |
| 1234 | { |
| 1235 | return std::format_to(ctx.out(), L"{}[{}:{}]", location.function_name(), location.file_name(), location.line()); |
| 1236 | } |
| 1237 | }; |
| 1238 | |
| 1239 | // char -> wchar_t formatting is only used by the Windows components. libc++ (used to |
| 1240 | // build the Linux components) now provides these as deleted specializations per C++23 |
| 1241 | // [format.formatter.spec], which would collide, so restrict them to Windows. |
| 1242 | #ifdef WIN32 |
| 1243 | |
| 1244 | template <> |
| 1245 | struct std::formatter<char*, wchar_t> |
| 1246 | { |
| 1247 | template <typename TCtx> |
| 1248 | static constexpr auto parse(TCtx& ctx) |
| 1249 | { |
| 1250 | return ctx.begin(); |
| 1251 | } |
| 1252 | |
| 1253 | template <typename TCtx> |
| 1254 | auto format(const char* str, TCtx& ctx) const |
| 1255 | { |
| 1256 | return std::format_to(ctx.out(), L"{}", wsl::shared::string::MultiByteToWide(str)); |
| 1257 | } |
| 1258 | }; |
| 1259 | |
| 1260 | template <> |
| 1261 | struct std::formatter<const char*, wchar_t> |
| 1262 | { |
| 1263 | template <typename TCtx> |
| 1264 | static constexpr auto parse(TCtx& ctx) |
| 1265 | { |
| 1266 | return ctx.begin(); |
| 1267 | } |
| 1268 | |
| 1269 | template <typename TCtx> |
| 1270 | auto format(const char* str, TCtx& ctx) const |
| 1271 | { |
| 1272 | return std::format_to(ctx.out(), L"{}", wsl::shared::string::MultiByteToWide(str)); |
| 1273 | } |
| 1274 | }; |
| 1275 | |
| 1276 | template <std::size_t N> |
| 1277 | struct std::formatter<char[N], wchar_t> |
| 1278 | { |
| 1279 | template <typename TCtx> |
| 1280 | static constexpr auto parse(TCtx& ctx) |
| 1281 | { |
| 1282 | return ctx.begin(); |
| 1283 | } |
| 1284 | |
| 1285 | template <typename TCtx> |
| 1286 | auto format(const char str[N], TCtx& ctx) const |
| 1287 | { |
| 1288 | return std::format_to(ctx.out(), L"{}", wsl::shared::string::MultiByteToWide(str)); |
| 1289 | } |
| 1290 | }; |
| 1291 | |
| 1292 | template <class Traits, class Allocator> |
| 1293 | struct std::formatter<std::basic_string<char, Traits, Allocator>, wchar_t> |
| 1294 | { |
| 1295 | template <typename TCtx> |
| 1296 | static constexpr auto parse(TCtx& ctx) |
| 1297 | { |
| 1298 | return ctx.begin(); |
| 1299 | } |
| 1300 | |
| 1301 | template <typename TCtx> |
| 1302 | auto format(const std::basic_string<char, Traits, Allocator>& str, TCtx& ctx) const |
| 1303 | { |
| 1304 | return std::format_to(ctx.out(), L"{}", wsl::shared::string::MultiByteToWide(str)); |
| 1305 | } |
| 1306 | }; |
| 1307 | |
| 1308 | #endif // WIN32 |
| 1309 | |
| 1310 | template <> |
| 1311 | struct std::formatter<std::filesystem::path, wchar_t> |
| 1312 | { |
| 1313 | template <typename TCtx> |
| 1314 | static constexpr auto parse(TCtx& ctx) |
| 1315 | { |
| 1316 | return ctx.begin(); |
| 1317 | } |
| 1318 | |
| 1319 | template <typename TCtx> |
| 1320 | auto format(const std::filesystem::path& str, TCtx& ctx) const |
| 1321 | { |
| 1322 | return std::format_to(ctx.out(), "{}", str.wstring()); |
| 1323 | } |
| 1324 | }; |
| 1325 | |
| 1326 | template <> |
| 1327 | struct std::formatter<GUID, wchar_t> |
| 1328 | { |
| 1329 | template <typename TCtx> |
| 1330 | static constexpr auto parse(TCtx& ctx) |
| 1331 | { |
| 1332 | return ctx.begin(); |
| 1333 | } |
| 1334 | |
| 1335 | template <typename TCtx> |
| 1336 | auto format(const GUID& Guid, TCtx& ctx) const |
| 1337 | { |
| 1338 | return std::format_to(ctx.out(), "{}", wsl::shared::string::GuidToString<wchar_t>(Guid)); |
| 1339 | } |
| 1340 | }; |
| 1341 | |
| 1342 | template <> |
| 1343 | struct std::formatter<wchar_t, char> |
| 1344 | { |
| 1345 | template <typename TCtx> |
| 1346 | static constexpr auto parse(TCtx& ctx) |
| 1347 | { |
| 1348 | return ctx.begin(); |
| 1349 | } |
| 1350 | |
| 1351 | template <typename TCtx> |
| 1352 | auto format(wchar_t str, TCtx& ctx) const |
| 1353 | { |
| 1354 | return std::format_to(ctx.out(), "{}", wsl::shared::string::WideToMultiByte(std::wstring{&str, 1})); |
| 1355 | } |
| 1356 | }; |