1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "base/files/file_path.h" 6 7 #include <string.h> 8 #include <algorithm> 9 10 #include "base/basictypes.h" 11 #include "base/logging.h" 12 #include "base/pickle.h" 13 14 // These includes are just for the *Hack functions, and should be removed 15 // when those functions are removed. 16 #include "base/strings/string_piece.h" 17 #include "base/strings/string_util.h" 18 #include "base/strings/sys_string_conversions.h" 19 #include "base/strings/utf_string_conversions.h" 20 21 #if defined(OS_MACOSX) 22 #include "base/mac/scoped_cftyperef.h" 23 #include "base/third_party/icu/icu_utf.h" 24 #endif 25 26 #if defined(OS_WIN) 27 #include <windows.h> 28 #elif defined(OS_MACOSX) 29 #include <CoreFoundation/CoreFoundation.h> 30 #endif 31 32 namespace base { 33 34 typedef FilePath::StringType StringType; 35 36 namespace { 37 38 const char* kCommonDoubleExtensionSuffixes[] = { "gz", "z", "bz2" }; 39 const char* kCommonDoubleExtensions[] = { "user.js" }; 40 41 const FilePath::CharType kStringTerminator = FILE_PATH_LITERAL('\0'); 42 43 // If this FilePath contains a drive letter specification, returns the 44 // position of the last character of the drive letter specification, 45 // otherwise returns npos. This can only be true on Windows, when a pathname 46 // begins with a letter followed by a colon. On other platforms, this always 47 // returns npos. 48 StringType::size_type FindDriveLetter(const StringType& path) { 49 #if defined(FILE_PATH_USES_DRIVE_LETTERS) 50 // This is dependent on an ASCII-based character set, but that's a 51 // reasonable assumption. iswalpha can be too inclusive here. 52 if (path.length() >= 2 && path[1] == L':' && 53 ((path[0] >= L'A' && path[0] <= L'Z') || 54 (path[0] >= L'a' && path[0] <= L'z'))) { 55 return 1; 56 } 57 #endif // FILE_PATH_USES_DRIVE_LETTERS 58 return StringType::npos; 59 } 60 61 #if defined(FILE_PATH_USES_DRIVE_LETTERS) 62 bool EqualDriveLetterCaseInsensitive(const StringType& a, 63 const StringType& b) { 64 size_t a_letter_pos = FindDriveLetter(a); 65 size_t b_letter_pos = FindDriveLetter(b); 66 67 if (a_letter_pos == StringType::npos || b_letter_pos == StringType::npos) 68 return a == b; 69 70 StringType a_letter(a.substr(0, a_letter_pos + 1)); 71 StringType b_letter(b.substr(0, b_letter_pos + 1)); 72 if (!StartsWith(a_letter, b_letter, false)) 73 return false; 74 75 StringType a_rest(a.substr(a_letter_pos + 1)); 76 StringType b_rest(b.substr(b_letter_pos + 1)); 77 return a_rest == b_rest; 78 } 79 #endif // defined(FILE_PATH_USES_DRIVE_LETTERS) 80 81 bool IsPathAbsolute(const StringType& path) { 82 #if defined(FILE_PATH_USES_DRIVE_LETTERS) 83 StringType::size_type letter = FindDriveLetter(path); 84 if (letter != StringType::npos) { 85 // Look for a separator right after the drive specification. 86 return path.length() > letter + 1 && 87 FilePath::IsSeparator(path[letter + 1]); 88 } 89 // Look for a pair of leading separators. 90 return path.length() > 1 && 91 FilePath::IsSeparator(path[0]) && FilePath::IsSeparator(path[1]); 92 #else // FILE_PATH_USES_DRIVE_LETTERS 93 // Look for a separator in the first position. 94 return path.length() > 0 && FilePath::IsSeparator(path[0]); 95 #endif // FILE_PATH_USES_DRIVE_LETTERS 96 } 97 98 bool AreAllSeparators(const StringType& input) { 99 for (StringType::const_iterator it = input.begin(); 100 it != input.end(); ++it) { 101 if (!FilePath::IsSeparator(*it)) 102 return false; 103 } 104 105 return true; 106 } 107 108 // Find the position of the '.' that separates the extension from the rest 109 // of the file name. The position is relative to BaseName(), not value(). 110 // Returns npos if it can't find an extension. 111 StringType::size_type FinalExtensionSeparatorPosition(const StringType& path) { 112 // Special case "." and ".." 113 if (path == FilePath::kCurrentDirectory || path == FilePath::kParentDirectory) 114 return StringType::npos; 115 116 return path.rfind(FilePath::kExtensionSeparator); 117 } 118 119 // Same as above, but allow a second extension component of up to 4 120 // characters when the rightmost extension component is a common double 121 // extension (gz, bz2, Z). For example, foo.tar.gz or foo.tar.Z would have 122 // extension components of '.tar.gz' and '.tar.Z' respectively. 123 StringType::size_type ExtensionSeparatorPosition(const StringType& path) { 124 const StringType::size_type last_dot = FinalExtensionSeparatorPosition(path); 125 126 // No extension, or the extension is the whole filename. 127 if (last_dot == StringType::npos || last_dot == 0U) 128 return last_dot; 129 130 const StringType::size_type penultimate_dot = 131 path.rfind(FilePath::kExtensionSeparator, last_dot - 1); 132 const StringType::size_type last_separator = 133 path.find_last_of(FilePath::kSeparators, last_dot - 1, 134 FilePath::kSeparatorsLength - 1); 135 136 if (penultimate_dot == StringType::npos || 137 (last_separator != StringType::npos && 138 penultimate_dot < last_separator)) { 139 return last_dot; 140 } 141 142 for (size_t i = 0; i < arraysize(kCommonDoubleExtensions); ++i) { 143 StringType extension(path, penultimate_dot + 1); 144 if (LowerCaseEqualsASCII(extension, kCommonDoubleExtensions[i])) 145 return penultimate_dot; 146 } 147 148 StringType extension(path, last_dot + 1); 149 for (size_t i = 0; i < arraysize(kCommonDoubleExtensionSuffixes); ++i) { 150 if (LowerCaseEqualsASCII(extension, kCommonDoubleExtensionSuffixes[i])) { 151 if ((last_dot - penultimate_dot) <= 5U && 152 (last_dot - penultimate_dot) > 1U) { 153 return penultimate_dot; 154 } 155 } 156 } 157 158 return last_dot; 159 } 160 161 // Returns true if path is "", ".", or "..". 162 bool IsEmptyOrSpecialCase(const StringType& path) { 163 // Special cases "", ".", and ".." 164 if (path.empty() || path == FilePath::kCurrentDirectory || 165 path == FilePath::kParentDirectory) { 166 return true; 167 } 168 169 return false; 170 } 171 172 } // namespace 173 174 FilePath::FilePath() { 175 } 176 177 FilePath::FilePath(const FilePath& that) : path_(that.path_) { 178 } 179 180 FilePath::FilePath(const StringType& path) : path_(path) { 181 StringType::size_type nul_pos = path_.find(kStringTerminator); 182 if (nul_pos != StringType::npos) 183 path_.erase(nul_pos, StringType::npos); 184 } 185 186 FilePath::~FilePath() { 187 } 188 189 FilePath& FilePath::operator=(const FilePath& that) { 190 path_ = that.path_; 191 return *this; 192 } 193 194 bool FilePath::operator==(const FilePath& that) const { 195 #if defined(FILE_PATH_USES_DRIVE_LETTERS) 196 return EqualDriveLetterCaseInsensitive(this->path_, that.path_); 197 #else // defined(FILE_PATH_USES_DRIVE_LETTERS) 198 return path_ == that.path_; 199 #endif // defined(FILE_PATH_USES_DRIVE_LETTERS) 200 } 201 202 bool FilePath::operator!=(const FilePath& that) const { 203 #if defined(FILE_PATH_USES_DRIVE_LETTERS) 204 return !EqualDriveLetterCaseInsensitive(this->path_, that.path_); 205 #else // defined(FILE_PATH_USES_DRIVE_LETTERS) 206 return path_ != that.path_; 207 #endif // defined(FILE_PATH_USES_DRIVE_LETTERS) 208 } 209 210 // static 211 bool FilePath::IsSeparator(CharType character) { 212 for (size_t i = 0; i < kSeparatorsLength - 1; ++i) { 213 if (character == kSeparators[i]) { 214 return true; 215 } 216 } 217 218 return false; 219 } 220 221 void FilePath::GetComponents(std::vector<StringType>* components) const { 222 DCHECK(components); 223 if (!components) 224 return; 225 components->clear(); 226 if (value().empty()) 227 return; 228 229 std::vector<StringType> ret_val; 230 FilePath current = *this; 231 FilePath base; 232 233 // Capture path components. 234 while (current != current.DirName()) { 235 base = current.BaseName(); 236 if (!AreAllSeparators(base.value())) 237 ret_val.push_back(base.value()); 238 current = current.DirName(); 239 } 240 241 // Capture root, if any. 242 base = current.BaseName(); 243 if (!base.value().empty() && base.value() != kCurrentDirectory) 244 ret_val.push_back(current.BaseName().value()); 245 246 // Capture drive letter, if any. 247 FilePath dir = current.DirName(); 248 StringType::size_type letter = FindDriveLetter(dir.value()); 249 if (letter != StringType::npos) { 250 ret_val.push_back(StringType(dir.value(), 0, letter + 1)); 251 } 252 253 *components = std::vector<StringType>(ret_val.rbegin(), ret_val.rend()); 254 } 255 256 bool FilePath::IsParent(const FilePath& child) const { 257 return AppendRelativePath(child, NULL); 258 } 259 260 bool FilePath::AppendRelativePath(const FilePath& child, 261 FilePath* path) const { 262 std::vector<StringType> parent_components; 263 std::vector<StringType> child_components; 264 GetComponents(&parent_components); 265 child.GetComponents(&child_components); 266 267 if (parent_components.empty() || 268 parent_components.size() >= child_components.size()) 269 return false; 270 271 std::vector<StringType>::const_iterator parent_comp = 272 parent_components.begin(); 273 std::vector<StringType>::const_iterator child_comp = 274 child_components.begin(); 275 276 #if defined(FILE_PATH_USES_DRIVE_LETTERS) 277 // Windows can access case sensitive filesystems, so component 278 // comparisions must be case sensitive, but drive letters are 279 // never case sensitive. 280 if ((FindDriveLetter(*parent_comp) != StringType::npos) && 281 (FindDriveLetter(*child_comp) != StringType::npos)) { 282 if (!StartsWith(*parent_comp, *child_comp, false)) 283 return false; 284 ++parent_comp; 285 ++child_comp; 286 } 287 #endif // defined(FILE_PATH_USES_DRIVE_LETTERS) 288 289 while (parent_comp != parent_components.end()) { 290 if (*parent_comp != *child_comp) 291 return false; 292 ++parent_comp; 293 ++child_comp; 294 } 295 296 if (path != NULL) { 297 for (; child_comp != child_components.end(); ++child_comp) { 298 *path = path->Append(*child_comp); 299 } 300 } 301 return true; 302 } 303 304 // libgen's dirname and basename aren't guaranteed to be thread-safe and aren't 305 // guaranteed to not modify their input strings, and in fact are implemented 306 // differently in this regard on different platforms. Don't use them, but 307 // adhere to their behavior. 308 FilePath FilePath::DirName() const { 309 FilePath new_path(path_); 310 new_path.StripTrailingSeparatorsInternal(); 311 312 // The drive letter, if any, always needs to remain in the output. If there 313 // is no drive letter, as will always be the case on platforms which do not 314 // support drive letters, letter will be npos, or -1, so the comparisons and 315 // resizes below using letter will still be valid. 316 StringType::size_type letter = FindDriveLetter(new_path.path_); 317 318 StringType::size_type last_separator = 319 new_path.path_.find_last_of(kSeparators, StringType::npos, 320 kSeparatorsLength - 1); 321 if (last_separator == StringType::npos) { 322 // path_ is in the current directory. 323 new_path.path_.resize(letter + 1); 324 } else if (last_separator == letter + 1) { 325 // path_ is in the root directory. 326 new_path.path_.resize(letter + 2); 327 } else if (last_separator == letter + 2 && 328 IsSeparator(new_path.path_[letter + 1])) { 329 // path_ is in "//" (possibly with a drive letter); leave the double 330 // separator intact indicating alternate root. 331 new_path.path_.resize(letter + 3); 332 } else if (last_separator != 0) { 333 // path_ is somewhere else, trim the basename. 334 new_path.path_.resize(last_separator); 335 } 336 337 new_path.StripTrailingSeparatorsInternal(); 338 if (!new_path.path_.length()) 339 new_path.path_ = kCurrentDirectory; 340 341 return new_path; 342 } 343 344 FilePath FilePath::BaseName() const { 345 FilePath new_path(path_); 346 new_path.StripTrailingSeparatorsInternal(); 347 348 // The drive letter, if any, is always stripped. 349 StringType::size_type letter = FindDriveLetter(new_path.path_); 350 if (letter != StringType::npos) { 351 new_path.path_.erase(0, letter + 1); 352 } 353 354 // Keep everything after the final separator, but if the pathname is only 355 // one character and it's a separator, leave it alone. 356 StringType::size_type last_separator = 357 new_path.path_.find_last_of(kSeparators, StringType::npos, 358 kSeparatorsLength - 1); 359 if (last_separator != StringType::npos && 360 last_separator < new_path.path_.length() - 1) { 361 new_path.path_.erase(0, last_separator + 1); 362 } 363 364 return new_path; 365 } 366 367 StringType FilePath::Extension() const { 368 FilePath base(BaseName()); 369 const StringType::size_type dot = ExtensionSeparatorPosition(base.path_); 370 if (dot == StringType::npos) 371 return StringType(); 372 373 return base.path_.substr(dot, StringType::npos); 374 } 375 376 StringType FilePath::FinalExtension() const { 377 FilePath base(BaseName()); 378 const StringType::size_type dot = FinalExtensionSeparatorPosition(base.path_); 379 if (dot == StringType::npos) 380 return StringType(); 381 382 return base.path_.substr(dot, StringType::npos); 383 } 384 385 FilePath FilePath::RemoveExtension() const { 386 if (Extension().empty()) 387 return *this; 388 389 const StringType::size_type dot = ExtensionSeparatorPosition(path_); 390 if (dot == StringType::npos) 391 return *this; 392 393 return FilePath(path_.substr(0, dot)); 394 } 395 396 FilePath FilePath::RemoveFinalExtension() const { 397 if (FinalExtension().empty()) 398 return *this; 399 400 const StringType::size_type dot = FinalExtensionSeparatorPosition(path_); 401 if (dot == StringType::npos) 402 return *this; 403 404 return FilePath(path_.substr(0, dot)); 405 } 406 407 FilePath FilePath::InsertBeforeExtension(const StringType& suffix) const { 408 if (suffix.empty()) 409 return FilePath(path_); 410 411 if (IsEmptyOrSpecialCase(BaseName().value())) 412 return FilePath(); 413 414 StringType ext = Extension(); 415 StringType ret = RemoveExtension().value(); 416 ret.append(suffix); 417 ret.append(ext); 418 return FilePath(ret); 419 } 420 421 FilePath FilePath::InsertBeforeExtensionASCII(const StringPiece& suffix) 422 const { 423 DCHECK(IsStringASCII(suffix)); 424 #if defined(OS_WIN) 425 return InsertBeforeExtension(ASCIIToUTF16(suffix.as_string())); 426 #elif defined(OS_POSIX) 427 return InsertBeforeExtension(suffix.as_string()); 428 #endif 429 } 430 431 FilePath FilePath::AddExtension(const StringType& extension) const { 432 if (IsEmptyOrSpecialCase(BaseName().value())) 433 return FilePath(); 434 435 // If the new extension is "" or ".", then just return the current FilePath. 436 if (extension.empty() || extension == StringType(1, kExtensionSeparator)) 437 return *this; 438 439 StringType str = path_; 440 if (extension[0] != kExtensionSeparator && 441 *(str.end() - 1) != kExtensionSeparator) { 442 str.append(1, kExtensionSeparator); 443 } 444 str.append(extension); 445 return FilePath(str); 446 } 447 448 FilePath FilePath::ReplaceExtension(const StringType& extension) const { 449 if (IsEmptyOrSpecialCase(BaseName().value())) 450 return FilePath(); 451 452 FilePath no_ext = RemoveExtension(); 453 // If the new extension is "" or ".", then just remove the current extension. 454 if (extension.empty() || extension == StringType(1, kExtensionSeparator)) 455 return no_ext; 456 457 StringType str = no_ext.value(); 458 if (extension[0] != kExtensionSeparator) 459 str.append(1, kExtensionSeparator); 460 str.append(extension); 461 return FilePath(str); 462 } 463 464 bool FilePath::MatchesExtension(const StringType& extension) const { 465 DCHECK(extension.empty() || extension[0] == kExtensionSeparator); 466 467 StringType current_extension = Extension(); 468 469 if (current_extension.length() != extension.length()) 470 return false; 471 472 return FilePath::CompareEqualIgnoreCase(extension, current_extension); 473 } 474 475 FilePath FilePath::Append(const StringType& component) const { 476 const StringType* appended = &component; 477 StringType without_nuls; 478 479 StringType::size_type nul_pos = component.find(kStringTerminator); 480 if (nul_pos != StringType::npos) { 481 without_nuls = component.substr(0, nul_pos); 482 appended = &without_nuls; 483 } 484 485 DCHECK(!IsPathAbsolute(*appended)); 486 487 if (path_.compare(kCurrentDirectory) == 0) { 488 // Append normally doesn't do any normalization, but as a special case, 489 // when appending to kCurrentDirectory, just return a new path for the 490 // component argument. Appending component to kCurrentDirectory would 491 // serve no purpose other than needlessly lengthening the path, and 492 // it's likely in practice to wind up with FilePath objects containing 493 // only kCurrentDirectory when calling DirName on a single relative path 494 // component. 495 return FilePath(*appended); 496 } 497 498 FilePath new_path(path_); 499 new_path.StripTrailingSeparatorsInternal(); 500 501 // Don't append a separator if the path is empty (indicating the current 502 // directory) or if the path component is empty (indicating nothing to 503 // append). 504 if (appended->length() > 0 && new_path.path_.length() > 0) { 505 // Don't append a separator if the path still ends with a trailing 506 // separator after stripping (indicating the root directory). 507 if (!IsSeparator(new_path.path_[new_path.path_.length() - 1])) { 508 // Don't append a separator if the path is just a drive letter. 509 if (FindDriveLetter(new_path.path_) + 1 != new_path.path_.length()) { 510 new_path.path_.append(1, kSeparators[0]); 511 } 512 } 513 } 514 515 new_path.path_.append(*appended); 516 return new_path; 517 } 518 519 FilePath FilePath::Append(const FilePath& component) const { 520 return Append(component.value()); 521 } 522 523 FilePath FilePath::AppendASCII(const StringPiece& component) const { 524 DCHECK(base::IsStringASCII(component)); 525 #if defined(OS_WIN) 526 return Append(ASCIIToUTF16(component.as_string())); 527 #elif defined(OS_POSIX) 528 return Append(component.as_string()); 529 #endif 530 } 531 532 bool FilePath::IsAbsolute() const { 533 return IsPathAbsolute(path_); 534 } 535 536 bool FilePath::EndsWithSeparator() const { 537 if (empty()) 538 return false; 539 return IsSeparator(path_[path_.size() - 1]); 540 } 541 542 FilePath FilePath::AsEndingWithSeparator() const { 543 if (EndsWithSeparator() || path_.empty()) 544 return *this; 545 546 StringType path_str; 547 path_str.reserve(path_.length() + 1); // Only allocate string once. 548 549 path_str = path_; 550 path_str.append(&kSeparators[0], 1); 551 return FilePath(path_str); 552 } 553 554 FilePath FilePath::StripTrailingSeparators() const { 555 FilePath new_path(path_); 556 new_path.StripTrailingSeparatorsInternal(); 557 558 return new_path; 559 } 560 561 bool FilePath::ReferencesParent() const { 562 std::vector<StringType> components; 563 GetComponents(&components); 564 565 std::vector<StringType>::const_iterator it = components.begin(); 566 for (; it != components.end(); ++it) { 567 const StringType& component = *it; 568 // Windows has odd, undocumented behavior with path components containing 569 // only whitespace and . characters. So, if all we see is . and 570 // whitespace, then we treat any .. sequence as referencing parent. 571 // For simplicity we enforce this on all platforms. 572 if (component.find_first_not_of(FILE_PATH_LITERAL(". \n\r\t")) == 573 std::string::npos && 574 component.find(kParentDirectory) != std::string::npos) { 575 return true; 576 } 577 } 578 return false; 579 } 580 581 #if defined(OS_POSIX) 582 // See file_path.h for a discussion of the encoding of paths on POSIX 583 // platforms. These encoding conversion functions are not quite correct. 584 585 string16 FilePath::LossyDisplayName() const { 586 return WideToUTF16(SysNativeMBToWide(path_)); 587 } 588 589 std::string FilePath::MaybeAsASCII() const { 590 if (base::IsStringASCII(path_)) 591 return path_; 592 return std::string(); 593 } 594 595 std::string FilePath::AsUTF8Unsafe() const { 596 #if defined(OS_MACOSX) || defined(OS_CHROMEOS) 597 return value(); 598 #else 599 return WideToUTF8(SysNativeMBToWide(value())); 600 #endif 601 } 602 603 string16 FilePath::AsUTF16Unsafe() const { 604 #if defined(OS_MACOSX) || defined(OS_CHROMEOS) 605 return UTF8ToUTF16(value()); 606 #else 607 return WideToUTF16(SysNativeMBToWide(value())); 608 #endif 609 } 610 611 // static 612 FilePath FilePath::FromUTF8Unsafe(const std::string& utf8) { 613 #if defined(OS_MACOSX) || defined(OS_CHROMEOS) 614 return FilePath(utf8); 615 #else 616 return FilePath(SysWideToNativeMB(UTF8ToWide(utf8))); 617 #endif 618 } 619 620 // static 621 FilePath FilePath::FromUTF16Unsafe(const string16& utf16) { 622 #if defined(OS_MACOSX) || defined(OS_CHROMEOS) 623 return FilePath(UTF16ToUTF8(utf16)); 624 #else 625 return FilePath(SysWideToNativeMB(UTF16ToWide(utf16))); 626 #endif 627 } 628 629 #elif defined(OS_WIN) 630 string16 FilePath::LossyDisplayName() const { 631 return path_; 632 } 633 634 std::string FilePath::MaybeAsASCII() const { 635 if (base::IsStringASCII(path_)) 636 return UTF16ToASCII(path_); 637 return std::string(); 638 } 639 640 std::string FilePath::AsUTF8Unsafe() const { 641 return WideToUTF8(value()); 642 } 643 644 string16 FilePath::AsUTF16Unsafe() const { 645 return value(); 646 } 647 648 // static 649 FilePath FilePath::FromUTF8Unsafe(const std::string& utf8) { 650 return FilePath(UTF8ToWide(utf8)); 651 } 652 653 // static 654 FilePath FilePath::FromUTF16Unsafe(const string16& utf16) { 655 return FilePath(utf16); 656 } 657 #endif 658 659 void FilePath::WriteToPickle(Pickle* pickle) const { 660 #if defined(OS_WIN) 661 pickle->WriteString16(path_); 662 #else 663 pickle->WriteString(path_); 664 #endif 665 } 666 667 bool FilePath::ReadFromPickle(PickleIterator* iter) { 668 #if defined(OS_WIN) 669 if (!iter->ReadString16(&path_)) 670 return false; 671 #else 672 if (!iter->ReadString(&path_)) 673 return false; 674 #endif 675 676 if (path_.find(kStringTerminator) != StringType::npos) 677 return false; 678 679 return true; 680 } 681 682 #if defined(OS_WIN) 683 // Windows specific implementation of file string comparisons 684 685 int FilePath::CompareIgnoreCase(const StringType& string1, 686 const StringType& string2) { 687 // Perform character-wise upper case comparison rather than using the 688 // fully Unicode-aware CompareString(). For details see: 689 // http://blogs.msdn.com/michkap/archive/2005/10/17/481600.aspx 690 StringType::const_iterator i1 = string1.begin(); 691 StringType::const_iterator i2 = string2.begin(); 692 StringType::const_iterator string1end = string1.end(); 693 StringType::const_iterator string2end = string2.end(); 694 for ( ; i1 != string1end && i2 != string2end; ++i1, ++i2) { 695 wchar_t c1 = (wchar_t)LOWORD(::CharUpperW((LPWSTR)MAKELONG(*i1, 0))); 696 wchar_t c2 = (wchar_t)LOWORD(::CharUpperW((LPWSTR)MAKELONG(*i2, 0))); 697 if (c1 < c2) 698 return -1; 699 if (c1 > c2) 700 return 1; 701 } 702 if (i1 != string1end) 703 return 1; 704 if (i2 != string2end) 705 return -1; 706 return 0; 707 } 708 709 #elif defined(OS_MACOSX) 710 // Mac OS X specific implementation of file string comparisons 711 712 // cf. http://developer.apple.com/mac/library/technotes/tn/tn1150.html#UnicodeSubtleties 713 // 714 // "When using CreateTextEncoding to create a text encoding, you should set 715 // the TextEncodingBase to kTextEncodingUnicodeV2_0, set the 716 // TextEncodingVariant to kUnicodeCanonicalDecompVariant, and set the 717 // TextEncodingFormat to kUnicode16BitFormat. Using these values ensures that 718 // the Unicode will be in the same form as on an HFS Plus volume, even as the 719 // Unicode standard evolves." 720 // 721 // Another technical article for X 10.4 updates this: one should use 722 // the new (unambiguous) kUnicodeHFSPlusDecompVariant. 723 // cf. http://developer.apple.com/mac/library/releasenotes/TextFonts/RN-TEC/index.html 724 // 725 // This implementation uses CFStringGetFileSystemRepresentation() to get the 726 // decomposed form, and an adapted version of the FastUnicodeCompare as 727 // described in the tech note to compare the strings. 728 729 // Character conversion table for FastUnicodeCompare() 730 // 731 // The lower case table consists of a 256-entry high-byte table followed by 732 // some number of 256-entry subtables. The high-byte table contains either an 733 // offset to the subtable for characters with that high byte or zero, which 734 // means that there are no case mappings or ignored characters in that block. 735 // Ignored characters are mapped to zero. 736 // 737 // cf. downloadable file linked in 738 // http://developer.apple.com/mac/library/technotes/tn/tn1150.html#StringComparisonAlgorithm 739 740 namespace { 741 742 const UInt16 lower_case_table[] = { 743 // High-byte indices ( == 0 iff no case mapping and no ignorables ) 744 745 /* 0 */ 0x0100, 0x0200, 0x0000, 0x0300, 0x0400, 0x0500, 0x0000, 0x0000, 746 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 747 /* 1 */ 0x0600, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 748 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 749 /* 2 */ 0x0700, 0x0800, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 750 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 751 /* 3 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 752 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 753 /* 4 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 754 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 755 /* 5 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 756 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 757 /* 6 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 758 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 759 /* 7 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 760 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 761 /* 8 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 762 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 763 /* 9 */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 764 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 765 /* A */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 766 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 767 /* B */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 768 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 769 /* C */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 770 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 771 /* D */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 772 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 773 /* E */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 774 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 775 /* F */ 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 776 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0900, 0x0A00, 777 778 // Table 1 (for high byte 0x00) 779 780 /* 0 */ 0xFFFF, 0x0001, 0x0002, 0x0003, 0x0004, 0x0005, 0x0006, 0x0007, 781 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E, 0x000F, 782 /* 1 */ 0x0010, 0x0011, 0x0012, 0x0013, 0x0014, 0x0015, 0x0016, 0x0017, 783 0x0018, 0x0019, 0x001A, 0x001B, 0x001C, 0x001D, 0x001E, 0x001F, 784 /* 2 */ 0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027, 785 0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F, 786 /* 3 */ 0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037, 787 0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F, 788 /* 4 */ 0x0040, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 789 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, 790 /* 5 */ 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 791 0x0078, 0x0079, 0x007A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F, 792 /* 6 */ 0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067, 793 0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F, 794 /* 7 */ 0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077, 795 0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x007F, 796 /* 8 */ 0x0080, 0x0081, 0x0082, 0x0083, 0x0084, 0x0085, 0x0086, 0x0087, 797 0x0088, 0x0089, 0x008A, 0x008B, 0x008C, 0x008D, 0x008E, 0x008F, 798 /* 9 */ 0x0090, 0x0091, 0x0092, 0x0093, 0x0094, 0x0095, 0x0096, 0x0097, 799 0x0098, 0x0099, 0x009A, 0x009B, 0x009C, 0x009D, 0x009E, 0x009F, 800 /* A */ 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x00A4, 0x00A5, 0x00A6, 0x00A7, 801 0x00A8, 0x00A9, 0x00AA, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, 802 /* B */ 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, 803 0x00B8, 0x00B9, 0x00BA, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF, 804 /* C */ 0x00C0, 0x00C1, 0x00C2, 0x00C3, 0x00C4, 0x00C5, 0x00E6, 0x00C7, 805 0x00C8, 0x00C9, 0x00CA, 0x00CB, 0x00CC, 0x00CD, 0x00CE, 0x00CF, 806 /* D */ 0x00F0, 0x00D1, 0x00D2, 0x00D3, 0x00D4, 0x00D5, 0x00D6, 0x00D7, 807 0x00F8, 0x00D9, 0x00DA, 0x00DB, 0x00DC, 0x00DD, 0x00FE, 0x00DF, 808 /* E */ 0x00E0, 0x00E1, 0x00E2, 0x00E3, 0x00E4, 0x00E5, 0x00E6, 0x00E7, 809 0x00E8, 0x00E9, 0x00EA, 0x00EB, 0x00EC, 0x00ED, 0x00EE, 0x00EF, 810 /* F */ 0x00F0, 0x00F1, 0x00F2, 0x00F3, 0x00F4, 0x00F5, 0x00F6, 0x00F7, 811 0x00F8, 0x00F9, 0x00FA, 0x00FB, 0x00FC, 0x00FD, 0x00FE, 0x00FF, 812 813 // Table 2 (for high byte 0x01) 814 815 /* 0 */ 0x0100, 0x0101, 0x0102, 0x0103, 0x0104, 0x0105, 0x0106, 0x0107, 816 0x0108, 0x0109, 0x010A, 0x010B, 0x010C, 0x010D, 0x010E, 0x010F, 817 /* 1 */ 0x0111, 0x0111, 0x0112, 0x0113, 0x0114, 0x0115, 0x0116, 0x0117, 818 0x0118, 0x0119, 0x011A, 0x011B, 0x011C, 0x011D, 0x011E, 0x011F, 819 /* 2 */ 0x0120, 0x0121, 0x0122, 0x0123, 0x0124, 0x0125, 0x0127, 0x0127, 820 0x0128, 0x0129, 0x012A, 0x012B, 0x012C, 0x012D, 0x012E, 0x012F, 821 /* 3 */ 0x0130, 0x0131, 0x0133, 0x0133, 0x0134, 0x0135, 0x0136, 0x0137, 822 0x0138, 0x0139, 0x013A, 0x013B, 0x013C, 0x013D, 0x013E, 0x0140, 823 /* 4 */ 0x0140, 0x0142, 0x0142, 0x0143, 0x0144, 0x0145, 0x0146, 0x0147, 824 0x0148, 0x0149, 0x014B, 0x014B, 0x014C, 0x014D, 0x014E, 0x014F, 825 /* 5 */ 0x0150, 0x0151, 0x0153, 0x0153, 0x0154, 0x0155, 0x0156, 0x0157, 826 0x0158, 0x0159, 0x015A, 0x015B, 0x015C, 0x015D, 0x015E, 0x015F, 827 /* 6 */ 0x0160, 0x0161, 0x0162, 0x0163, 0x0164, 0x0165, 0x0167, 0x0167, 828 0x0168, 0x0169, 0x016A, 0x016B, 0x016C, 0x016D, 0x016E, 0x016F, 829 /* 7 */ 0x0170, 0x0171, 0x0172, 0x0173, 0x0174, 0x0175, 0x0176, 0x0177, 830 0x0178, 0x0179, 0x017A, 0x017B, 0x017C, 0x017D, 0x017E, 0x017F, 831 /* 8 */ 0x0180, 0x0253, 0x0183, 0x0183, 0x0185, 0x0185, 0x0254, 0x0188, 832 0x0188, 0x0256, 0x0257, 0x018C, 0x018C, 0x018D, 0x01DD, 0x0259, 833 /* 9 */ 0x025B, 0x0192, 0x0192, 0x0260, 0x0263, 0x0195, 0x0269, 0x0268, 834 0x0199, 0x0199, 0x019A, 0x019B, 0x026F, 0x0272, 0x019E, 0x0275, 835 /* A */ 0x01A0, 0x01A1, 0x01A3, 0x01A3, 0x01A5, 0x01A5, 0x01A6, 0x01A8, 836 0x01A8, 0x0283, 0x01AA, 0x01AB, 0x01AD, 0x01AD, 0x0288, 0x01AF, 837 /* B */ 0x01B0, 0x028A, 0x028B, 0x01B4, 0x01B4, 0x01B6, 0x01B6, 0x0292, 838 0x01B9, 0x01B9, 0x01BA, 0x01BB, 0x01BD, 0x01BD, 0x01BE, 0x01BF, 839 /* C */ 0x01C0, 0x01C1, 0x01C2, 0x01C3, 0x01C6, 0x01C6, 0x01C6, 0x01C9, 840 0x01C9, 0x01C9, 0x01CC, 0x01CC, 0x01CC, 0x01CD, 0x01CE, 0x01CF, 841 /* D */ 0x01D0, 0x01D1, 0x01D2, 0x01D3, 0x01D4, 0x01D5, 0x01D6, 0x01D7, 842 0x01D8, 0x01D9, 0x01DA, 0x01DB, 0x01DC, 0x01DD, 0x01DE, 0x01DF, 843 /* E */ 0x01E0, 0x01E1, 0x01E2, 0x01E3, 0x01E5, 0x01E5, 0x01E6, 0x01E7, 844 0x01E8, 0x01E9, 0x01EA, 0x01EB, 0x01EC, 0x01ED, 0x01EE, 0x01EF, 845 /* F */ 0x01F0, 0x01F3, 0x01F3, 0x01F3, 0x01F4, 0x01F5, 0x01F6, 0x01F7, 846 0x01F8, 0x01F9, 0x01FA, 0x01FB, 0x01FC, 0x01FD, 0x01FE, 0x01FF, 847 848 // Table 3 (for high byte 0x03) 849 850 /* 0 */ 0x0300, 0x0301, 0x0302, 0x0303, 0x0304, 0x0305, 0x0306, 0x0307, 851 0x0308, 0x0309, 0x030A, 0x030B, 0x030C, 0x030D, 0x030E, 0x030F, 852 /* 1 */ 0x0310, 0x0311, 0x0312, 0x0313, 0x0314, 0x0315, 0x0316, 0x0317, 853 0x0318, 0x0319, 0x031A, 0x031B, 0x031C, 0x031D, 0x031E, 0x031F, 854 /* 2 */ 0x0320, 0x0321, 0x0322, 0x0323, 0x0324, 0x0325, 0x0326, 0x0327, 855 0x0328, 0x0329, 0x032A, 0x032B, 0x032C, 0x032D, 0x032E, 0x032F, 856 /* 3 */ 0x0330, 0x0331, 0x0332, 0x0333, 0x0334, 0x0335, 0x0336, 0x0337, 857 0x0338, 0x0339, 0x033A, 0x033B, 0x033C, 0x033D, 0x033E, 0x033F, 858 /* 4 */ 0x0340, 0x0341, 0x0342, 0x0343, 0x0344, 0x0345, 0x0346, 0x0347, 859 0x0348, 0x0349, 0x034A, 0x034B, 0x034C, 0x034D, 0x034E, 0x034F, 860 /* 5 */ 0x0350, 0x0351, 0x0352, 0x0353, 0x0354, 0x0355, 0x0356, 0x0357, 861 0x0358, 0x0359, 0x035A, 0x035B, 0x035C, 0x035D, 0x035E, 0x035F, 862 /* 6 */ 0x0360, 0x0361, 0x0362, 0x0363, 0x0364, 0x0365, 0x0366, 0x0367, 863 0x0368, 0x0369, 0x036A, 0x036B, 0x036C, 0x036D, 0x036E, 0x036F, 864 /* 7 */ 0x0370, 0x0371, 0x0372, 0x0373, 0x0374, 0x0375, 0x0376, 0x0377, 865 0x0378, 0x0379, 0x037A, 0x037B, 0x037C, 0x037D, 0x037E, 0x037F, 866 /* 8 */ 0x0380, 0x0381, 0x0382, 0x0383, 0x0384, 0x0385, 0x0386, 0x0387, 867 0x0388, 0x0389, 0x038A, 0x038B, 0x038C, 0x038D, 0x038E, 0x038F, 868 /* 9 */ 0x0390, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 869 0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 870 /* A */ 0x03C0, 0x03C1, 0x03A2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 871 0x03C8, 0x03C9, 0x03AA, 0x03AB, 0x03AC, 0x03AD, 0x03AE, 0x03AF, 872 /* B */ 0x03B0, 0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 873 0x03B8, 0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 874 /* C */ 0x03C0, 0x03C1, 0x03C2, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 875 0x03C8, 0x03C9, 0x03CA, 0x03CB, 0x03CC, 0x03CD, 0x03CE, 0x03CF, 876 /* D */ 0x03D0, 0x03D1, 0x03D2, 0x03D3, 0x03D4, 0x03D5, 0x03D6, 0x03D7, 877 0x03D8, 0x03D9, 0x03DA, 0x03DB, 0x03DC, 0x03DD, 0x03DE, 0x03DF, 878 /* E */ 0x03E0, 0x03E1, 0x03E3, 0x03E3, 0x03E5, 0x03E5, 0x03E7, 0x03E7, 879 0x03E9, 0x03E9, 0x03EB, 0x03EB, 0x03ED, 0x03ED, 0x03EF, 0x03EF, 880 /* F */ 0x03F0, 0x03F1, 0x03F2, 0x03F3, 0x03F4, 0x03F5, 0x03F6, 0x03F7, 881 0x03F8, 0x03F9, 0x03FA, 0x03FB, 0x03FC, 0x03FD, 0x03FE, 0x03FF, 882 883 // Table 4 (for high byte 0x04) 884 885 /* 0 */ 0x0400, 0x0401, 0x0452, 0x0403, 0x0454, 0x0455, 0x0456, 0x0407, 886 0x0458, 0x0459, 0x045A, 0x045B, 0x040C, 0x040D, 0x040E, 0x045F, 887 /* 1 */ 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 888 0x0438, 0x0419, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F, 889 /* 2 */ 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 890 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F, 891 /* 3 */ 0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437, 892 0x0438, 0x0439, 0x043A, 0x043B, 0x043C, 0x043D, 0x043E, 0x043F, 893 /* 4 */ 0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447, 894 0x0448, 0x0449, 0x044A, 0x044B, 0x044C, 0x044D, 0x044E, 0x044F, 895 /* 5 */ 0x0450, 0x0451, 0x0452, 0x0453, 0x0454, 0x0455, 0x0456, 0x0457, 896 0x0458, 0x0459, 0x045A, 0x045B, 0x045C, 0x045D, 0x045E, 0x045F, 897 /* 6 */ 0x0461, 0x0461, 0x0463, 0x0463, 0x0465, 0x0465, 0x0467, 0x0467, 898 0x0469, 0x0469, 0x046B, 0x046B, 0x046D, 0x046D, 0x046F, 0x046F, 899 /* 7 */ 0x0471, 0x0471, 0x0473, 0x0473, 0x0475, 0x0475, 0x0476, 0x0477, 900 0x0479, 0x0479, 0x047B, 0x047B, 0x047D, 0x047D, 0x047F, 0x047F, 901 /* 8 */ 0x0481, 0x0481, 0x0482, 0x0483, 0x0484, 0x0485, 0x0486, 0x0487, 902 0x0488, 0x0489, 0x048A, 0x048B, 0x048C, 0x048D, 0x048E, 0x048F, 903 /* 9 */ 0x0491, 0x0491, 0x0493, 0x0493, 0x0495, 0x0495, 0x0497, 0x0497, 904 0x0499, 0x0499, 0x049B, 0x049B, 0x049D, 0x049D, 0x049F, 0x049F, 905 /* A */ 0x04A1, 0x04A1, 0x04A3, 0x04A3, 0x04A5, 0x04A5, 0x04A7, 0x04A7, 906 0x04A9, 0x04A9, 0x04AB, 0x04AB, 0x04AD, 0x04AD, 0x04AF, 0x04AF, 907 /* B */ 0x04B1, 0x04B1, 0x04B3, 0x04B3, 0x04B5, 0x04B5, 0x04B7, 0x04B7, 908 0x04B9, 0x04B9, 0x04BB, 0x04BB, 0x04BD, 0x04BD, 0x04BF, 0x04BF, 909 /* C */ 0x04C0, 0x04C1, 0x04C2, 0x04C4, 0x04C4, 0x04C5, 0x04C6, 0x04C8, 910 0x04C8, 0x04C9, 0x04CA, 0x04CC, 0x04CC, 0x04CD, 0x04CE, 0x04CF, 911 /* D */ 0x04D0, 0x04D1, 0x04D2, 0x04D3, 0x04D4, 0x04D5, 0x04D6, 0x04D7, 912 0x04D8, 0x04D9, 0x04DA, 0x04DB, 0x04DC, 0x04DD, 0x04DE, 0x04DF, 913 /* E */ 0x04E0, 0x04E1, 0x04E2, 0x04E3, 0x04E4, 0x04E5, 0x04E6, 0x04E7, 914 0x04E8, 0x04E9, 0x04EA, 0x04EB, 0x04EC, 0x04ED, 0x04EE, 0x04EF, 915 /* F */ 0x04F0, 0x04F1, 0x04F2, 0x04F3, 0x04F4, 0x04F5, 0x04F6, 0x04F7, 916 0x04F8, 0x04F9, 0x04FA, 0x04FB, 0x04FC, 0x04FD, 0x04FE, 0x04FF, 917 918 // Table 5 (for high byte 0x05) 919 920 /* 0 */ 0x0500, 0x0501, 0x0502, 0x0503, 0x0504, 0x0505, 0x0506, 0x0507, 921 0x0508, 0x0509, 0x050A, 0x050B, 0x050C, 0x050D, 0x050E, 0x050F, 922 /* 1 */ 0x0510, 0x0511, 0x0512, 0x0513, 0x0514, 0x0515, 0x0516, 0x0517, 923 0x0518, 0x0519, 0x051A, 0x051B, 0x051C, 0x051D, 0x051E, 0x051F, 924 /* 2 */ 0x0520, 0x0521, 0x0522, 0x0523, 0x0524, 0x0525, 0x0526, 0x0527, 925 0x0528, 0x0529, 0x052A, 0x052B, 0x052C, 0x052D, 0x052E, 0x052F, 926 /* 3 */ 0x0530, 0x0561, 0x0562, 0x0563, 0x0564, 0x0565, 0x0566, 0x0567, 927 0x0568, 0x0569, 0x056A, 0x056B, 0x056C, 0x056D, 0x056E, 0x056F, 928 /* 4 */ 0x0570, 0x0571, 0x0572, 0x0573, 0x0574, 0x0575, 0x0576, 0x0577, 929 0x0578, 0x0579, 0x057A, 0x057B, 0x057C, 0x057D, 0x057E, 0x057F, 930 /* 5 */ 0x0580, 0x0581, 0x0582, 0x0583, 0x0584, 0x0585, 0x0586, 0x0557, 931 0x0558, 0x0559, 0x055A, 0x055B, 0x055C, 0x055D, 0x055E, 0x055F, 932 /* 6 */ 0x0560, 0x0561, 0x0562, 0x0563, 0x0564, 0x0565, 0x0566, 0x0567, 933 0x0568, 0x0569, 0x056A, 0x056B, 0x056C, 0x056D, 0x056E, 0x056F, 934 /* 7 */ 0x0570, 0x0571, 0x0572, 0x0573, 0x0574, 0x0575, 0x0576, 0x0577, 935 0x0578, 0x0579, 0x057A, 0x057B, 0x057C, 0x057D, 0x057E, 0x057F, 936 /* 8 */ 0x0580, 0x0581, 0x0582, 0x0583, 0x0584, 0x0585, 0x0586, 0x0587, 937 0x0588, 0x0589, 0x058A, 0x058B, 0x058C, 0x058D, 0x058E, 0x058F, 938 /* 9 */ 0x0590, 0x0591, 0x0592, 0x0593, 0x0594, 0x0595, 0x0596, 0x0597, 939 0x0598, 0x0599, 0x059A, 0x059B, 0x059C, 0x059D, 0x059E, 0x059F, 940 /* A */ 0x05A0, 0x05A1, 0x05A2, 0x05A3, 0x05A4, 0x05A5, 0x05A6, 0x05A7, 941 0x05A8, 0x05A9, 0x05AA, 0x05AB, 0x05AC, 0x05AD, 0x05AE, 0x05AF, 942 /* B */ 0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7, 943 0x05B8, 0x05B9, 0x05BA, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF, 944 /* C */ 0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05C4, 0x05C5, 0x05C6, 0x05C7, 945 0x05C8, 0x05C9, 0x05CA, 0x05CB, 0x05CC, 0x05CD, 0x05CE, 0x05CF, 946 /* D */ 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, 947 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF, 948 /* E */ 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7, 949 0x05E8, 0x05E9, 0x05EA, 0x05EB, 0x05EC, 0x05ED, 0x05EE, 0x05EF, 950 /* F */ 0x05F0, 0x05F1, 0x05F2, 0x05F3, 0x05F4, 0x05F5, 0x05F6, 0x05F7, 951 0x05F8, 0x05F9, 0x05FA, 0x05FB, 0x05FC, 0x05FD, 0x05FE, 0x05FF, 952 953 // Table 6 (for high byte 0x10) 954 955 /* 0 */ 0x1000, 0x1001, 0x1002, 0x1003, 0x1004, 0x1005, 0x1006, 0x1007, 956 0x1008, 0x1009, 0x100A, 0x100B, 0x100C, 0x100D, 0x100E, 0x100F, 957 /* 1 */ 0x1010, 0x1011, 0x1012, 0x1013, 0x1014, 0x1015, 0x1016, 0x1017, 958 0x1018, 0x1019, 0x101A, 0x101B, 0x101C, 0x101D, 0x101E, 0x101F, 959 /* 2 */ 0x1020, 0x1021, 0x1022, 0x1023, 0x1024, 0x1025, 0x1026, 0x1027, 960 0x1028, 0x1029, 0x102A, 0x102B, 0x102C, 0x102D, 0x102E, 0x102F, 961 /* 3 */ 0x1030, 0x1031, 0x1032, 0x1033, 0x1034, 0x1035, 0x1036, 0x1037, 962 0x1038, 0x1039, 0x103A, 0x103B, 0x103C, 0x103D, 0x103E, 0x103F, 963 /* 4 */ 0x1040, 0x1041, 0x1042, 0x1043, 0x1044, 0x1045, 0x1046, 0x1047, 964 0x1048, 0x1049, 0x104A, 0x104B, 0x104C, 0x104D, 0x104E, 0x104F, 965 /* 5 */ 0x1050, 0x1051, 0x1052, 0x1053, 0x1054, 0x1055, 0x1056, 0x1057, 966 0x1058, 0x1059, 0x105A, 0x105B, 0x105C, 0x105D, 0x105E, 0x105F, 967 /* 6 */ 0x1060, 0x1061, 0x1062, 0x1063, 0x1064, 0x1065, 0x1066, 0x1067, 968 0x1068, 0x1069, 0x106A, 0x106B, 0x106C, 0x106D, 0x106E, 0x106F, 969 /* 7 */ 0x1070, 0x1071, 0x1072, 0x1073, 0x1074, 0x1075, 0x1076, 0x1077, 970 0x1078, 0x1079, 0x107A, 0x107B, 0x107C, 0x107D, 0x107E, 0x107F, 971 /* 8 */ 0x1080, 0x1081, 0x1082, 0x1083, 0x1084, 0x1085, 0x1086, 0x1087, 972 0x1088, 0x1089, 0x108A, 0x108B, 0x108C, 0x108D, 0x108E, 0x108F, 973 /* 9 */ 0x1090, 0x1091, 0x1092, 0x1093, 0x1094, 0x1095, 0x1096, 0x1097, 974 0x1098, 0x1099, 0x109A, 0x109B, 0x109C, 0x109D, 0x109E, 0x109F, 975 /* A */ 0x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10D7, 976 0x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10DD, 0x10DE, 0x10DF, 977 /* B */ 0x10E0, 0x10E1, 0x10E2, 0x10E3, 0x10E4, 0x10E5, 0x10E6, 0x10E7, 978 0x10E8, 0x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10EF, 979 /* C */ 0x10F0, 0x10F1, 0x10F2, 0x10F3, 0x10F4, 0x10F5, 0x10C6, 0x10C7, 980 0x10C8, 0x10C9, 0x10CA, 0x10CB, 0x10CC, 0x10CD, 0x10CE, 0x10CF, 981 /* D */ 0x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10D7, 982 0x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10DD, 0x10DE, 0x10DF, 983 /* E */ 0x10E0, 0x10E1, 0x10E2, 0x10E3, 0x10E4, 0x10E5, 0x10E6, 0x10E7, 984 0x10E8, 0x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10EF, 985 /* F */ 0x10F0, 0x10F1, 0x10F2, 0x10F3, 0x10F4, 0x10F5, 0x10F6, 0x10F7, 986 0x10F8, 0x10F9, 0x10FA, 0x10FB, 0x10FC, 0x10FD, 0x10FE, 0x10FF, 987 988 // Table 7 (for high byte 0x20) 989 990 /* 0 */ 0x2000, 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006, 0x2007, 991 0x2008, 0x2009, 0x200A, 0x200B, 0x0000, 0x0000, 0x0000, 0x0000, 992 /* 1 */ 0x2010, 0x2011, 0x2012, 0x2013, 0x2014, 0x2015, 0x2016, 0x2017, 993 0x2018, 0x2019, 0x201A, 0x201B, 0x201C, 0x201D, 0x201E, 0x201F, 994 /* 2 */ 0x2020, 0x2021, 0x2022, 0x2023, 0x2024, 0x2025, 0x2026, 0x2027, 995 0x2028, 0x2029, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x202F, 996 /* 3 */ 0x2030, 0x2031, 0x2032, 0x2033, 0x2034, 0x2035, 0x2036, 0x2037, 997 0x2038, 0x2039, 0x203A, 0x203B, 0x203C, 0x203D, 0x203E, 0x203F, 998 /* 4 */ 0x2040, 0x2041, 0x2042, 0x2043, 0x2044, 0x2045, 0x2046, 0x2047, 999 0x2048, 0x2049, 0x204A, 0x204B, 0x204C, 0x204D, 0x204E, 0x204F, 1000 /* 5 */ 0x2050, 0x2051, 0x2052, 0x2053, 0x2054, 0x2055, 0x2056, 0x2057, 1001 0x2058, 0x2059, 0x205A, 0x205B, 0x205C, 0x205D, 0x205E, 0x205F, 1002 /* 6 */ 0x2060, 0x2061, 0x2062, 0x2063, 0x2064, 0x2065, 0x2066, 0x2067, 1003 0x2068, 0x2069, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 1004 /* 7 */ 0x2070, 0x2071, 0x2072, 0x2073, 0x2074, 0x2075, 0x2076, 0x2077, 1005 0x2078, 0x2079, 0x207A, 0x207B, 0x207C, 0x207D, 0x207E, 0x207F, 1006 /* 8 */ 0x2080, 0x2081, 0x2082, 0x2083, 0x2084, 0x2085, 0x2086, 0x2087, 1007 0x2088, 0x2089, 0x208A, 0x208B, 0x208C, 0x208D, 0x208E, 0x208F, 1008 /* 9 */ 0x2090, 0x2091, 0x2092, 0x2093, 0x2094, 0x2095, 0x2096, 0x2097, 1009 0x2098, 0x2099, 0x209A, 0x209B, 0x209C, 0x209D, 0x209E, 0x209F, 1010 /* A */ 0x20A0, 0x20A1, 0x20A2, 0x20A3, 0x20A4, 0x20A5, 0x20A6, 0x20A7, 1011 0x20A8, 0x20A9, 0x20AA, 0x20AB, 0x20AC, 0x20AD, 0x20AE, 0x20AF, 1012 /* B */ 0x20B0, 0x20B1, 0x20B2, 0x20B3, 0x20B4, 0x20B5, 0x20B6, 0x20B7, 1013 0x20B8, 0x20B9, 0x20BA, 0x20BB, 0x20BC, 0x20BD, 0x20BE, 0x20BF, 1014 /* C */ 0x20C0, 0x20C1, 0x20C2, 0x20C3, 0x20C4, 0x20C5, 0x20C6, 0x20C7, 1015 0x20C8, 0x20C9, 0x20CA, 0x20CB, 0x20CC, 0x20CD, 0x20CE, 0x20CF, 1016 /* D */ 0x20D0, 0x20D1, 0x20D2, 0x20D3, 0x20D4, 0x20D5, 0x20D6, 0x20D7, 1017 0x20D8, 0x20D9, 0x20DA, 0x20DB, 0x20DC, 0x20DD, 0x20DE, 0x20DF, 1018 /* E */ 0x20E0, 0x20E1, 0x20E2, 0x20E3, 0x20E4, 0x20E5, 0x20E6, 0x20E7, 1019 0x20E8, 0x20E9, 0x20EA, 0x20EB, 0x20EC, 0x20ED, 0x20EE, 0x20EF, 1020 /* F */ 0x20F0, 0x20F1, 0x20F2, 0x20F3, 0x20F4, 0x20F5, 0x20F6, 0x20F7, 1021 0x20F8, 0x20F9, 0x20FA, 0x20FB, 0x20FC, 0x20FD, 0x20FE, 0x20FF, 1022 1023 // Table 8 (for high byte 0x21) 1024 1025 /* 0 */ 0x2100, 0x2101, 0x2102, 0x2103, 0x2104, 0x2105, 0x2106, 0x2107, 1026 0x2108, 0x2109, 0x210A, 0x210B, 0x210C, 0x210D, 0x210E, 0x210F, 1027 /* 1 */ 0x2110, 0x2111, 0x2112, 0x2113, 0x2114, 0x2115, 0x2116, 0x2117, 1028 0x2118, 0x2119, 0x211A, 0x211B, 0x211C, 0x211D, 0x211E, 0x211F, 1029 /* 2 */ 0x2120, 0x2121, 0x2122, 0x2123, 0x2124, 0x2125, 0x2126, 0x2127, 1030 0x2128, 0x2129, 0x212A, 0x212B, 0x212C, 0x212D, 0x212E, 0x212F, 1031 /* 3 */ 0x2130, 0x2131, 0x2132, 0x2133, 0x2134, 0x2135, 0x2136, 0x2137, 1032 0x2138, 0x2139, 0x213A, 0x213B, 0x213C, 0x213D, 0x213E, 0x213F, 1033 /* 4 */ 0x2140, 0x2141, 0x2142, 0x2143, 0x2144, 0x2145, 0x2146, 0x2147, 1034 0x2148, 0x2149, 0x214A, 0x214B, 0x214C, 0x214D, 0x214E, 0x214F, 1035 /* 5 */ 0x2150, 0x2151, 0x2152, 0x2153, 0x2154, 0x2155, 0x2156, 0x2157, 1036 0x2158, 0x2159, 0x215A, 0x215B, 0x215C, 0x215D, 0x215E, 0x215F, 1037 /* 6 */ 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177, 1038 0x2178, 0x2179, 0x217A, 0x217B, 0x217C, 0x217D, 0x217E, 0x217F, 1039 /* 7 */ 0x2170, 0x2171, 0x2172, 0x2173, 0x2174, 0x2175, 0x2176, 0x2177, 1040 0x2178, 0x2179, 0x217A, 0x217B, 0x217C, 0x217D, 0x217E, 0x217F, 1041 /* 8 */ 0x2180, 0x2181, 0x2182, 0x2183, 0x2184, 0x2185, 0x2186, 0x2187, 1042 0x2188, 0x2189, 0x218A, 0x218B, 0x218C, 0x218D, 0x218E, 0x218F, 1043 /* 9 */ 0x2190, 0x2191, 0x2192, 0x2193, 0x2194, 0x2195, 0x2196, 0x2197, 1044 0x2198, 0x2199, 0x219A, 0x219B, 0x219C, 0x219D, 0x219E, 0x219F, 1045 /* A */ 0x21A0, 0x21A1, 0x21A2, 0x21A3, 0x21A4, 0x21A5, 0x21A6, 0x21A7, 1046 0x21A8, 0x21A9, 0x21AA, 0x21AB, 0x21AC, 0x21AD, 0x21AE, 0x21AF, 1047 /* B */ 0x21B0, 0x21B1, 0x21B2, 0x21B3, 0x21B4, 0x21B5, 0x21B6, 0x21B7, 1048 0x21B8, 0x21B9, 0x21BA, 0x21BB, 0x21BC, 0x21BD, 0x21BE, 0x21BF, 1049 /* C */ 0x21C0, 0x21C1, 0x21C2, 0x21C3, 0x21C4, 0x21C5, 0x21C6, 0x21C7, 1050 0x21C8, 0x21C9, 0x21CA, 0x21CB, 0x21CC, 0x21CD, 0x21CE, 0x21CF, 1051 /* D */ 0x21D0, 0x21D1, 0x21D2, 0x21D3, 0x21D4, 0x21D5, 0x21D6, 0x21D7, 1052 0x21D8, 0x21D9, 0x21DA, 0x21DB, 0x21DC, 0x21DD, 0x21DE, 0x21DF, 1053 /* E */ 0x21E0, 0x21E1, 0x21E2, 0x21E3, 0x21E4, 0x21E5, 0x21E6, 0x21E7, 1054 0x21E8, 0x21E9, 0x21EA, 0x21EB, 0x21EC, 0x21ED, 0x21EE, 0x21EF, 1055 /* F */ 0x21F0, 0x21F1, 0x21F2, 0x21F3, 0x21F4, 0x21F5, 0x21F6, 0x21F7, 1056 0x21F8, 0x21F9, 0x21FA, 0x21FB, 0x21FC, 0x21FD, 0x21FE, 0x21FF, 1057 1058 // Table 9 (for high byte 0xFE) 1059 1060 /* 0 */ 0xFE00, 0xFE01, 0xFE02, 0xFE03, 0xFE04, 0xFE05, 0xFE06, 0xFE07, 1061 0xFE08, 0xFE09, 0xFE0A, 0xFE0B, 0xFE0C, 0xFE0D, 0xFE0E, 0xFE0F, 1062 /* 1 */ 0xFE10, 0xFE11, 0xFE12, 0xFE13, 0xFE14, 0xFE15, 0xFE16, 0xFE17, 1063 0xFE18, 0xFE19, 0xFE1A, 0xFE1B, 0xFE1C, 0xFE1D, 0xFE1E, 0xFE1F, 1064 /* 2 */ 0xFE20, 0xFE21, 0xFE22, 0xFE23, 0xFE24, 0xFE25, 0xFE26, 0xFE27, 1065 0xFE28, 0xFE29, 0xFE2A, 0xFE2B, 0xFE2C, 0xFE2D, 0xFE2E, 0xFE2F, 1066 /* 3 */ 0xFE30, 0xFE31, 0xFE32, 0xFE33, 0xFE34, 0xFE35, 0xFE36, 0xFE37, 1067 0xFE38, 0xFE39, 0xFE3A, 0xFE3B, 0xFE3C, 0xFE3D, 0xFE3E, 0xFE3F, 1068 /* 4 */ 0xFE40, 0xFE41, 0xFE42, 0xFE43, 0xFE44, 0xFE45, 0xFE46, 0xFE47, 1069 0xFE48, 0xFE49, 0xFE4A, 0xFE4B, 0xFE4C, 0xFE4D, 0xFE4E, 0xFE4F, 1070 /* 5 */ 0xFE50, 0xFE51, 0xFE52, 0xFE53, 0xFE54, 0xFE55, 0xFE56, 0xFE57, 1071 0xFE58, 0xFE59, 0xFE5A, 0xFE5B, 0xFE5C, 0xFE5D, 0xFE5E, 0xFE5F, 1072 /* 6 */ 0xFE60, 0xFE61, 0xFE62, 0xFE63, 0xFE64, 0xFE65, 0xFE66, 0xFE67, 1073 0xFE68, 0xFE69, 0xFE6A, 0xFE6B, 0xFE6C, 0xFE6D, 0xFE6E, 0xFE6F, 1074 /* 7 */ 0xFE70, 0xFE71, 0xFE72, 0xFE73, 0xFE74, 0xFE75, 0xFE76, 0xFE77, 1075 0xFE78, 0xFE79, 0xFE7A, 0xFE7B, 0xFE7C, 0xFE7D, 0xFE7E, 0xFE7F, 1076 /* 8 */ 0xFE80, 0xFE81, 0xFE82, 0xFE83, 0xFE84, 0xFE85, 0xFE86, 0xFE87, 1077 0xFE88, 0xFE89, 0xFE8A, 0xFE8B, 0xFE8C, 0xFE8D, 0xFE8E, 0xFE8F, 1078 /* 9 */ 0xFE90, 0xFE91, 0xFE92, 0xFE93, 0xFE94, 0xFE95, 0xFE96, 0xFE97, 1079 0xFE98, 0xFE99, 0xFE9A, 0xFE9B, 0xFE9C, 0xFE9D, 0xFE9E, 0xFE9F, 1080 /* A */ 0xFEA0, 0xFEA1, 0xFEA2, 0xFEA3, 0xFEA4, 0xFEA5, 0xFEA6, 0xFEA7, 1081 0xFEA8, 0xFEA9, 0xFEAA, 0xFEAB, 0xFEAC, 0xFEAD, 0xFEAE, 0xFEAF, 1082 /* B */ 0xFEB0, 0xFEB1, 0xFEB2, 0xFEB3, 0xFEB4, 0xFEB5, 0xFEB6, 0xFEB7, 1083 0xFEB8, 0xFEB9, 0xFEBA, 0xFEBB, 0xFEBC, 0xFEBD, 0xFEBE, 0xFEBF, 1084 /* C */ 0xFEC0, 0xFEC1, 0xFEC2, 0xFEC3, 0xFEC4, 0xFEC5, 0xFEC6, 0xFEC7, 1085 0xFEC8, 0xFEC9, 0xFECA, 0xFECB, 0xFECC, 0xFECD, 0xFECE, 0xFECF, 1086 /* D */ 0xFED0, 0xFED1, 0xFED2, 0xFED3, 0xFED4, 0xFED5, 0xFED6, 0xFED7, 1087 0xFED8, 0xFED9, 0xFEDA, 0xFEDB, 0xFEDC, 0xFEDD, 0xFEDE, 0xFEDF, 1088 /* E */ 0xFEE0, 0xFEE1, 0xFEE2, 0xFEE3, 0xFEE4, 0xFEE5, 0xFEE6, 0xFEE7, 1089 0xFEE8, 0xFEE9, 0xFEEA, 0xFEEB, 0xFEEC, 0xFEED, 0xFEEE, 0xFEEF, 1090 /* F */ 0xFEF0, 0xFEF1, 0xFEF2, 0xFEF3, 0xFEF4, 0xFEF5, 0xFEF6, 0xFEF7, 1091 0xFEF8, 0xFEF9, 0xFEFA, 0xFEFB, 0xFEFC, 0xFEFD, 0xFEFE, 0x0000, 1092 1093 // Table 10 (for high byte 0xFF) 1094 1095 /* 0 */ 0xFF00, 0xFF01, 0xFF02, 0xFF03, 0xFF04, 0xFF05, 0xFF06, 0xFF07, 1096 0xFF08, 0xFF09, 0xFF0A, 0xFF0B, 0xFF0C, 0xFF0D, 0xFF0E, 0xFF0F, 1097 /* 1 */ 0xFF10, 0xFF11, 0xFF12, 0xFF13, 0xFF14, 0xFF15, 0xFF16, 0xFF17, 1098 0xFF18, 0xFF19, 0xFF1A, 0xFF1B, 0xFF1C, 0xFF1D, 0xFF1E, 0xFF1F, 1099 /* 2 */ 0xFF20, 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47, 1100 0xFF48, 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F, 1101 /* 3 */ 0xFF50, 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57, 1102 0xFF58, 0xFF59, 0xFF5A, 0xFF3B, 0xFF3C, 0xFF3D, 0xFF3E, 0xFF3F, 1103 /* 4 */ 0xFF40, 0xFF41, 0xFF42, 0xFF43, 0xFF44, 0xFF45, 0xFF46, 0xFF47, 1104 0xFF48, 0xFF49, 0xFF4A, 0xFF4B, 0xFF4C, 0xFF4D, 0xFF4E, 0xFF4F, 1105 /* 5 */ 0xFF50, 0xFF51, 0xFF52, 0xFF53, 0xFF54, 0xFF55, 0xFF56, 0xFF57, 1106 0xFF58, 0xFF59, 0xFF5A, 0xFF5B, 0xFF5C, 0xFF5D, 0xFF5E, 0xFF5F, 1107 /* 6 */ 0xFF60, 0xFF61, 0xFF62, 0xFF63, 0xFF64, 0xFF65, 0xFF66, 0xFF67, 1108 0xFF68, 0xFF69, 0xFF6A, 0xFF6B, 0xFF6C, 0xFF6D, 0xFF6E, 0xFF6F, 1109 /* 7 */ 0xFF70, 0xFF71, 0xFF72, 0xFF73, 0xFF74, 0xFF75, 0xFF76, 0xFF77, 1110 0xFF78, 0xFF79, 0xFF7A, 0xFF7B, 0xFF7C, 0xFF7D, 0xFF7E, 0xFF7F, 1111 /* 8 */ 0xFF80, 0xFF81, 0xFF82, 0xFF83, 0xFF84, 0xFF85, 0xFF86, 0xFF87, 1112 0xFF88, 0xFF89, 0xFF8A, 0xFF8B, 0xFF8C, 0xFF8D, 0xFF8E, 0xFF8F, 1113 /* 9 */ 0xFF90, 0xFF91, 0xFF92, 0xFF93, 0xFF94, 0xFF95, 0xFF96, 0xFF97, 1114 0xFF98, 0xFF99, 0xFF9A, 0xFF9B, 0xFF9C, 0xFF9D, 0xFF9E, 0xFF9F, 1115 /* A */ 0xFFA0, 0xFFA1, 0xFFA2, 0xFFA3, 0xFFA4, 0xFFA5, 0xFFA6, 0xFFA7, 1116 0xFFA8, 0xFFA9, 0xFFAA, 0xFFAB, 0xFFAC, 0xFFAD, 0xFFAE, 0xFFAF, 1117 /* B */ 0xFFB0, 0xFFB1, 0xFFB2, 0xFFB3, 0xFFB4, 0xFFB5, 0xFFB6, 0xFFB7, 1118 0xFFB8, 0xFFB9, 0xFFBA, 0xFFBB, 0xFFBC, 0xFFBD, 0xFFBE, 0xFFBF, 1119 /* C */ 0xFFC0, 0xFFC1, 0xFFC2, 0xFFC3, 0xFFC4, 0xFFC5, 0xFFC6, 0xFFC7, 1120 0xFFC8, 0xFFC9, 0xFFCA, 0xFFCB, 0xFFCC, 0xFFCD, 0xFFCE, 0xFFCF, 1121 /* D */ 0xFFD0, 0xFFD1, 0xFFD2, 0xFFD3, 0xFFD4, 0xFFD5, 0xFFD6, 0xFFD7, 1122 0xFFD8, 0xFFD9, 0xFFDA, 0xFFDB, 0xFFDC, 0xFFDD, 0xFFDE, 0xFFDF, 1123 /* E */ 0xFFE0, 0xFFE1, 0xFFE2, 0xFFE3, 0xFFE4, 0xFFE5, 0xFFE6, 0xFFE7, 1124 0xFFE8, 0xFFE9, 0xFFEA, 0xFFEB, 0xFFEC, 0xFFED, 0xFFEE, 0xFFEF, 1125 /* F */ 0xFFF0, 0xFFF1, 0xFFF2, 0xFFF3, 0xFFF4, 0xFFF5, 0xFFF6, 0xFFF7, 1126 0xFFF8, 0xFFF9, 0xFFFA, 0xFFFB, 0xFFFC, 0xFFFD, 0xFFFE, 0xFFFF, 1127 }; 1128 1129 // Returns the next non-ignorable codepoint within string starting from the 1130 // position indicated by index, or zero if there are no more. 1131 // The passed-in index is automatically advanced as the characters in the input 1132 // HFS-decomposed UTF-8 strings are read. 1133 inline int HFSReadNextNonIgnorableCodepoint(const char* string, 1134 int length, 1135 int* index) { 1136 int codepoint = 0; 1137 while (*index < length && codepoint == 0) { 1138 // CBU8_NEXT returns a value < 0 in error cases. For purposes of string 1139 // comparison, we just use that value and flag it with DCHECK. 1140 CBU8_NEXT(string, *index, length, codepoint); 1141 DCHECK_GT(codepoint, 0); 1142 if (codepoint > 0) { 1143 // Check if there is a subtable for this upper byte. 1144 int lookup_offset = lower_case_table[codepoint >> 8]; 1145 if (lookup_offset != 0) 1146 codepoint = lower_case_table[lookup_offset + (codepoint & 0x00FF)]; 1147 // Note: codepoint1 may be again 0 at this point if the character was 1148 // an ignorable. 1149 } 1150 } 1151 return codepoint; 1152 } 1153 1154 } // anonymous namespace 1155 1156 // Special UTF-8 version of FastUnicodeCompare. Cf: 1157 // http://developer.apple.com/mac/library/technotes/tn/tn1150.html#StringComparisonAlgorithm 1158 // The input strings must be in the special HFS decomposed form. 1159 int FilePath::HFSFastUnicodeCompare(const StringType& string1, 1160 const StringType& string2) { 1161 int length1 = string1.length(); 1162 int length2 = string2.length(); 1163 int index1 = 0; 1164 int index2 = 0; 1165 1166 for (;;) { 1167 int codepoint1 = HFSReadNextNonIgnorableCodepoint(string1.c_str(), 1168 length1, 1169 &index1); 1170 int codepoint2 = HFSReadNextNonIgnorableCodepoint(string2.c_str(), 1171 length2, 1172 &index2); 1173 if (codepoint1 != codepoint2) 1174 return (codepoint1 < codepoint2) ? -1 : 1; 1175 if (codepoint1 == 0) { 1176 DCHECK_EQ(index1, length1); 1177 DCHECK_EQ(index2, length2); 1178 return 0; 1179 } 1180 } 1181 } 1182 1183 StringType FilePath::GetHFSDecomposedForm(const StringType& string) { 1184 ScopedCFTypeRef<CFStringRef> cfstring( 1185 CFStringCreateWithBytesNoCopy( 1186 NULL, 1187 reinterpret_cast<const UInt8*>(string.c_str()), 1188 string.length(), 1189 kCFStringEncodingUTF8, 1190 false, 1191 kCFAllocatorNull)); 1192 // Query the maximum length needed to store the result. In most cases this 1193 // will overestimate the required space. The return value also already 1194 // includes the space needed for a terminating 0. 1195 CFIndex length = CFStringGetMaximumSizeOfFileSystemRepresentation(cfstring); 1196 DCHECK_GT(length, 0); // should be at least 1 for the 0-terminator. 1197 // Reserve enough space for CFStringGetFileSystemRepresentation to write into. 1198 // Also set the length to the maximum so that we can shrink it later. 1199 // (Increasing rather than decreasing it would clobber the string contents!) 1200 StringType result; 1201 result.reserve(length); 1202 result.resize(length - 1); 1203 Boolean success = CFStringGetFileSystemRepresentation(cfstring, 1204 &result[0], 1205 length); 1206 if (success) { 1207 // Reduce result.length() to actual string length. 1208 result.resize(strlen(result.c_str())); 1209 } else { 1210 // An error occurred -> clear result. 1211 result.clear(); 1212 } 1213 return result; 1214 } 1215 1216 int FilePath::CompareIgnoreCase(const StringType& string1, 1217 const StringType& string2) { 1218 // Quick checks for empty strings - these speed things up a bit and make the 1219 // following code cleaner. 1220 if (string1.empty()) 1221 return string2.empty() ? 0 : -1; 1222 if (string2.empty()) 1223 return 1; 1224 1225 StringType hfs1 = GetHFSDecomposedForm(string1); 1226 StringType hfs2 = GetHFSDecomposedForm(string2); 1227 1228 // GetHFSDecomposedForm() returns an empty string in an error case. 1229 if (hfs1.empty() || hfs2.empty()) { 1230 NOTREACHED(); 1231 ScopedCFTypeRef<CFStringRef> cfstring1( 1232 CFStringCreateWithBytesNoCopy( 1233 NULL, 1234 reinterpret_cast<const UInt8*>(string1.c_str()), 1235 string1.length(), 1236 kCFStringEncodingUTF8, 1237 false, 1238 kCFAllocatorNull)); 1239 ScopedCFTypeRef<CFStringRef> cfstring2( 1240 CFStringCreateWithBytesNoCopy( 1241 NULL, 1242 reinterpret_cast<const UInt8*>(string2.c_str()), 1243 string2.length(), 1244 kCFStringEncodingUTF8, 1245 false, 1246 kCFAllocatorNull)); 1247 return CFStringCompare(cfstring1, 1248 cfstring2, 1249 kCFCompareCaseInsensitive); 1250 } 1251 1252 return HFSFastUnicodeCompare(hfs1, hfs2); 1253 } 1254 1255 #else // << WIN. MACOSX | other (POSIX) >> 1256 1257 // Generic (POSIX) implementation of file string comparison. 1258 // TODO(rolandsteiner) check if this is sufficient/correct. 1259 int FilePath::CompareIgnoreCase(const StringType& string1, 1260 const StringType& string2) { 1261 int comparison = strcasecmp(string1.c_str(), string2.c_str()); 1262 if (comparison < 0) 1263 return -1; 1264 if (comparison > 0) 1265 return 1; 1266 return 0; 1267 } 1268 1269 #endif // OS versions of CompareIgnoreCase() 1270 1271 1272 void FilePath::StripTrailingSeparatorsInternal() { 1273 // If there is no drive letter, start will be 1, which will prevent stripping 1274 // the leading separator if there is only one separator. If there is a drive 1275 // letter, start will be set appropriately to prevent stripping the first 1276 // separator following the drive letter, if a separator immediately follows 1277 // the drive letter. 1278 StringType::size_type start = FindDriveLetter(path_) + 2; 1279 1280 StringType::size_type last_stripped = StringType::npos; 1281 for (StringType::size_type pos = path_.length(); 1282 pos > start && IsSeparator(path_[pos - 1]); 1283 --pos) { 1284 // If the string only has two separators and they're at the beginning, 1285 // don't strip them, unless the string began with more than two separators. 1286 if (pos != start + 1 || last_stripped == start + 2 || 1287 !IsSeparator(path_[start - 1])) { 1288 path_.resize(pos - 1); 1289 last_stripped = pos; 1290 } 1291 } 1292 } 1293 1294 FilePath FilePath::NormalizePathSeparators() const { 1295 return NormalizePathSeparatorsTo(kSeparators[0]); 1296 } 1297 1298 FilePath FilePath::NormalizePathSeparatorsTo(CharType separator) const { 1299 #if defined(FILE_PATH_USES_WIN_SEPARATORS) 1300 DCHECK_NE(kSeparators + kSeparatorsLength, 1301 std::find(kSeparators, kSeparators + kSeparatorsLength, separator)); 1302 StringType copy = path_; 1303 for (size_t i = 0; i < kSeparatorsLength; ++i) { 1304 std::replace(copy.begin(), copy.end(), kSeparators[i], separator); 1305 } 1306 return FilePath(copy); 1307 #else 1308 return *this; 1309 #endif 1310 } 1311 1312 #if defined(OS_ANDROID) 1313 bool FilePath::IsContentUri() const { 1314 return StartsWithASCII(path_, "content://", false /*case_sensitive*/); 1315 } 1316 #endif 1317 1318 } // namespace base 1319 1320 void PrintTo(const base::FilePath& path, std::ostream* out) { 1321 *out << path.value(); 1322 } 1323
