Mercurial > hg > orthanc-webviewer
annotate Orthanc/Core/Toolbox.cpp @ 173:4f0f4f64cff3
Support of rendering RGB48 lookup tables (palette)
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 10 Oct 2017 13:26:15 +0200 |
| parents | 330ecfd96aec |
| children | dd1ad819ca33 |
| rev | line source |
|---|---|
| 78 | 1 /** |
| 2 * Orthanc - A Lightweight, RESTful DICOM Store | |
| 122 | 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics |
| 78 | 4 * Department, University Hospital of Liege, Belgium |
|
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shared copyright with osimis
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
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changeset
|
5 * Copyright (C) 2017 Osimis, Belgium |
| 78 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 8 * modify it under the terms of the GNU General Public License as | |
| 9 * published by the Free Software Foundation, either version 3 of the | |
| 10 * License, or (at your option) any later version. | |
| 11 * | |
| 12 * In addition, as a special exception, the copyright holders of this | |
| 13 * program give permission to link the code of its release with the | |
| 14 * OpenSSL project's "OpenSSL" library (or with modified versions of it | |
| 15 * that use the same license as the "OpenSSL" library), and distribute | |
| 16 * the linked executables. You must obey the GNU General Public License | |
| 17 * in all respects for all of the code used other than "OpenSSL". If you | |
| 18 * modify file(s) with this exception, you may extend this exception to | |
| 19 * your version of the file(s), but you are not obligated to do so. If | |
| 20 * you do not wish to do so, delete this exception statement from your | |
| 21 * version. If you delete this exception statement from all source files | |
| 22 * in the program, then also delete it here. | |
| 23 * | |
| 24 * This program is distributed in the hope that it will be useful, but | |
| 25 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 27 * General Public License for more details. | |
| 28 * | |
| 29 * You should have received a copy of the GNU General Public License | |
| 30 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| 31 **/ | |
| 32 | |
| 33 | |
| 34 #include "PrecompiledHeaders.h" | |
| 35 #include "Toolbox.h" | |
| 36 | |
| 37 #include "OrthancException.h" | |
| 38 #include "Logging.h" | |
| 39 | |
| 167 | 40 #include <boost/algorithm/string/case_conv.hpp> |
| 150 | 41 #include <boost/algorithm/string/replace.hpp> |
| 42 #include <boost/lexical_cast.hpp> | |
| 167 | 43 #include <boost/regex.hpp> |
| 150 | 44 #include <boost/uuid/sha1.hpp> |
| 167 | 45 |
| 78 | 46 #include <string> |
| 47 #include <stdint.h> | |
| 48 #include <string.h> | |
| 49 #include <algorithm> | |
| 50 #include <ctype.h> | |
| 51 | |
| 52 | |
| 149 | 53 #if ORTHANC_ENABLE_MD5 == 1 |
| 54 # include "../Resources/ThirdParty/md5/md5.h" | |
| 78 | 55 #endif |
| 56 | |
| 149 | 57 #if ORTHANC_ENABLE_BASE64 == 1 |
| 58 # include "../Resources/ThirdParty/base64/base64.h" | |
| 78 | 59 #endif |
| 60 | |
| 167 | 61 #if ORTHANC_ENABLE_LOCALE == 1 |
| 62 # include <boost/locale.hpp> | |
| 63 #endif | |
| 64 | |
| 78 | 65 |
| 66 #if defined(_MSC_VER) && (_MSC_VER < 1800) | |
| 67 // Patch for the missing "_strtoll" symbol when compiling with Visual Studio < 2013 | |
| 68 extern "C" | |
| 69 { | |
| 70 int64_t _strtoi64(const char *nptr, char **endptr, int base); | |
| 71 int64_t strtoll(const char *nptr, char **endptr, int base) | |
| 72 { | |
| 73 return _strtoi64(nptr, endptr, base); | |
| 74 } | |
| 75 } | |
| 76 #endif | |
| 77 | |
| 78 | |
| 155 | 79 #if defined(_WIN32) |
| 80 # include <windows.h> // For ::Sleep | |
| 150 | 81 #endif |
| 82 | |
| 83 | |
| 148 | 84 #if ORTHANC_ENABLE_PUGIXML == 1 |
| 150 | 85 # include "ChunkedBuffer.h" |
| 86 # include <pugixml.hpp> | |
| 78 | 87 #endif |
| 88 | |
| 89 | |
| 90 namespace Orthanc | |
| 91 { | |
| 92 void Toolbox::ToUpperCase(std::string& s) | |
| 93 { | |
| 94 std::transform(s.begin(), s.end(), s.begin(), toupper); | |
| 95 } | |
| 96 | |
| 97 | |
| 98 void Toolbox::ToLowerCase(std::string& s) | |
| 99 { | |
| 100 std::transform(s.begin(), s.end(), s.begin(), tolower); | |
| 101 } | |
| 102 | |
| 103 | |
| 104 void Toolbox::ToUpperCase(std::string& result, | |
| 105 const std::string& source) | |
| 106 { | |
| 107 result = source; | |
| 108 ToUpperCase(result); | |
| 109 } | |
| 110 | |
| 111 void Toolbox::ToLowerCase(std::string& result, | |
| 112 const std::string& source) | |
| 113 { | |
| 114 result = source; | |
| 115 ToLowerCase(result); | |
| 116 } | |
| 117 | |
| 118 | |
| 119 void Toolbox::SplitUriComponents(UriComponents& components, | |
| 120 const std::string& uri) | |
| 121 { | |
| 122 static const char URI_SEPARATOR = '/'; | |
| 123 | |
| 124 components.clear(); | |
| 125 | |
| 126 if (uri.size() == 0 || | |
| 127 uri[0] != URI_SEPARATOR) | |
| 128 { | |
| 129 throw OrthancException(ErrorCode_UriSyntax); | |
| 130 } | |
| 131 | |
| 132 // Count the number of slashes in the URI to make an assumption | |
| 133 // about the number of components in the URI | |
| 134 unsigned int estimatedSize = 0; | |
| 135 for (unsigned int i = 0; i < uri.size(); i++) | |
| 136 { | |
| 137 if (uri[i] == URI_SEPARATOR) | |
| 138 estimatedSize++; | |
| 139 } | |
| 140 | |
| 141 components.reserve(estimatedSize - 1); | |
| 142 | |
| 143 unsigned int start = 1; | |
| 144 unsigned int end = 1; | |
| 145 while (end < uri.size()) | |
| 146 { | |
| 147 // This is the loop invariant | |
| 148 assert(uri[start - 1] == '/' && (end >= start)); | |
| 149 | |
| 150 if (uri[end] == '/') | |
| 151 { | |
| 152 components.push_back(std::string(&uri[start], end - start)); | |
| 153 end++; | |
| 154 start = end; | |
| 155 } | |
| 156 else | |
| 157 { | |
| 158 end++; | |
| 159 } | |
| 160 } | |
| 161 | |
| 162 if (start < uri.size()) | |
| 163 { | |
| 164 components.push_back(std::string(&uri[start], end - start)); | |
| 165 } | |
| 166 | |
| 167 for (size_t i = 0; i < components.size(); i++) | |
| 168 { | |
| 169 if (components[i].size() == 0) | |
| 170 { | |
| 171 // Empty component, as in: "/coucou//e" | |
| 172 throw OrthancException(ErrorCode_UriSyntax); | |
| 173 } | |
| 174 } | |
| 175 } | |
| 176 | |
| 177 | |
| 178 void Toolbox::TruncateUri(UriComponents& target, | |
| 179 const UriComponents& source, | |
| 180 size_t fromLevel) | |
| 181 { | |
| 182 target.clear(); | |
| 183 | |
| 184 if (source.size() > fromLevel) | |
| 185 { | |
| 186 target.resize(source.size() - fromLevel); | |
| 187 | |
| 188 size_t j = 0; | |
| 189 for (size_t i = fromLevel; i < source.size(); i++, j++) | |
| 190 { | |
| 191 target[j] = source[i]; | |
| 192 } | |
| 193 | |
| 194 assert(j == target.size()); | |
| 195 } | |
| 196 } | |
| 197 | |
| 198 | |
| 199 | |
| 200 bool Toolbox::IsChildUri(const UriComponents& baseUri, | |
| 201 const UriComponents& testedUri) | |
| 202 { | |
| 203 if (testedUri.size() < baseUri.size()) | |
| 204 { | |
| 205 return false; | |
| 206 } | |
| 207 | |
| 208 for (size_t i = 0; i < baseUri.size(); i++) | |
| 209 { | |
| 210 if (baseUri[i] != testedUri[i]) | |
| 211 return false; | |
| 212 } | |
| 213 | |
| 214 return true; | |
| 215 } | |
| 216 | |
| 217 | |
| 218 std::string Toolbox::AutodetectMimeType(const std::string& path) | |
| 219 { | |
| 220 std::string contentType; | |
| 221 size_t lastDot = path.rfind('.'); | |
| 222 size_t lastSlash = path.rfind('/'); | |
| 223 | |
| 224 if (lastDot == std::string::npos || | |
| 225 (lastSlash != std::string::npos && lastDot < lastSlash)) | |
| 226 { | |
| 227 // No trailing dot, unable to detect the content type | |
| 228 } | |
| 229 else | |
| 230 { | |
| 231 const char* extension = &path[lastDot + 1]; | |
| 232 | |
| 233 // http://en.wikipedia.org/wiki/Mime_types | |
| 234 // Text types | |
| 235 if (!strcmp(extension, "txt")) | |
| 236 contentType = "text/plain"; | |
| 237 else if (!strcmp(extension, "html")) | |
| 238 contentType = "text/html"; | |
| 239 else if (!strcmp(extension, "xml")) | |
| 240 contentType = "text/xml"; | |
| 241 else if (!strcmp(extension, "css")) | |
| 242 contentType = "text/css"; | |
| 243 | |
| 244 // Application types | |
| 245 else if (!strcmp(extension, "js")) | |
| 246 contentType = "application/javascript"; | |
| 247 else if (!strcmp(extension, "json")) | |
| 248 contentType = "application/json"; | |
| 249 else if (!strcmp(extension, "pdf")) | |
| 250 contentType = "application/pdf"; | |
| 251 | |
| 252 // Images types | |
| 253 else if (!strcmp(extension, "jpg") || !strcmp(extension, "jpeg")) | |
| 254 contentType = "image/jpeg"; | |
| 255 else if (!strcmp(extension, "gif")) | |
| 256 contentType = "image/gif"; | |
| 257 else if (!strcmp(extension, "png")) | |
| 258 contentType = "image/png"; | |
| 259 } | |
| 260 | |
| 261 return contentType; | |
| 262 } | |
| 263 | |
| 264 | |
| 265 std::string Toolbox::FlattenUri(const UriComponents& components, | |
| 266 size_t fromLevel) | |
| 267 { | |
| 268 if (components.size() <= fromLevel) | |
| 269 { | |
| 270 return "/"; | |
| 271 } | |
| 272 else | |
| 273 { | |
| 274 std::string r; | |
| 275 | |
| 276 for (size_t i = fromLevel; i < components.size(); i++) | |
| 277 { | |
| 278 r += "/" + components[i]; | |
| 279 } | |
| 280 | |
| 281 return r; | |
| 282 } | |
| 283 } | |
| 284 | |
| 285 | |
| 149 | 286 #if ORTHANC_ENABLE_MD5 == 1 |
| 78 | 287 static char GetHexadecimalCharacter(uint8_t value) |
| 288 { | |
| 289 assert(value < 16); | |
| 290 | |
| 291 if (value < 10) | |
| 82 | 292 { |
| 78 | 293 return value + '0'; |
| 82 | 294 } |
| 78 | 295 else |
| 82 | 296 { |
| 78 | 297 return (value - 10) + 'a'; |
| 82 | 298 } |
| 78 | 299 } |
| 300 | |
| 301 | |
| 302 void Toolbox::ComputeMD5(std::string& result, | |
| 303 const std::string& data) | |
| 304 { | |
| 305 if (data.size() > 0) | |
| 306 { | |
| 307 ComputeMD5(result, &data[0], data.size()); | |
| 308 } | |
| 309 else | |
| 310 { | |
| 311 ComputeMD5(result, NULL, 0); | |
| 312 } | |
| 313 } | |
| 314 | |
| 315 | |
| 316 void Toolbox::ComputeMD5(std::string& result, | |
| 317 const void* data, | |
| 90 | 318 size_t size) |
| 78 | 319 { |
| 320 md5_state_s state; | |
| 321 md5_init(&state); | |
| 322 | |
| 90 | 323 if (size > 0) |
| 78 | 324 { |
| 325 md5_append(&state, | |
| 326 reinterpret_cast<const md5_byte_t*>(data), | |
| 90 | 327 static_cast<int>(size)); |
| 78 | 328 } |
| 329 | |
| 330 md5_byte_t actualHash[16]; | |
| 331 md5_finish(&state, actualHash); | |
| 332 | |
| 333 result.resize(32); | |
| 334 for (unsigned int i = 0; i < 16; i++) | |
| 335 { | |
| 82 | 336 result[2 * i] = GetHexadecimalCharacter(static_cast<uint8_t>(actualHash[i] / 16)); |
| 337 result[2 * i + 1] = GetHexadecimalCharacter(static_cast<uint8_t>(actualHash[i] % 16)); | |
| 78 | 338 } |
| 339 } | |
| 340 #endif | |
| 341 | |
| 342 | |
| 149 | 343 #if ORTHANC_ENABLE_BASE64 == 1 |
| 78 | 344 void Toolbox::EncodeBase64(std::string& result, |
| 345 const std::string& data) | |
| 346 { | |
| 347 result = base64_encode(data); | |
| 348 } | |
| 349 | |
| 350 void Toolbox::DecodeBase64(std::string& result, | |
| 351 const std::string& data) | |
| 352 { | |
| 129 | 353 for (size_t i = 0; i < data.length(); i++) |
| 354 { | |
| 355 if (!isalnum(data[i]) && | |
| 356 data[i] != '+' && | |
| 357 data[i] != '/' && | |
| 358 data[i] != '=') | |
| 359 { | |
| 360 // This is not a valid character for a Base64 string | |
| 361 throw OrthancException(ErrorCode_BadFileFormat); | |
| 362 } | |
| 363 } | |
| 364 | |
| 78 | 365 result = base64_decode(data); |
| 366 } | |
| 79 | 367 |
| 368 | |
| 129 | 369 bool Toolbox::DecodeDataUriScheme(std::string& mime, |
| 79 | 370 std::string& content, |
| 371 const std::string& source) | |
| 372 { | |
| 373 boost::regex pattern("data:([^;]+);base64,([a-zA-Z0-9=+/]*)", | |
| 374 boost::regex::icase /* case insensitive search */); | |
| 375 | |
| 376 boost::cmatch what; | |
| 377 if (regex_match(source.c_str(), what, pattern)) | |
| 378 { | |
| 379 mime = what[1]; | |
| 380 DecodeBase64(content, what[2]); | |
| 129 | 381 return true; |
| 79 | 382 } |
| 383 else | |
| 384 { | |
| 129 | 385 return false; |
| 79 | 386 } |
| 387 } | |
| 388 | |
| 90 | 389 |
| 390 void Toolbox::EncodeDataUriScheme(std::string& result, | |
| 391 const std::string& mime, | |
| 392 const std::string& content) | |
| 393 { | |
| 394 result = "data:" + mime + ";base64," + base64_encode(content); | |
| 395 } | |
| 396 | |
| 78 | 397 #endif |
| 398 | |
| 399 | |
| 172 | 400 #if ORTHANC_ENABLE_LOCALE == 1 |
| 78 | 401 static const char* GetBoostLocaleEncoding(const Encoding sourceEncoding) |
| 402 { | |
| 403 switch (sourceEncoding) | |
| 404 { | |
| 405 case Encoding_Utf8: | |
| 406 return "UTF-8"; | |
| 407 | |
| 408 case Encoding_Ascii: | |
| 409 return "ASCII"; | |
| 410 | |
| 411 case Encoding_Latin1: | |
| 412 return "ISO-8859-1"; | |
| 413 break; | |
| 414 | |
| 415 case Encoding_Latin2: | |
| 416 return "ISO-8859-2"; | |
| 417 break; | |
| 418 | |
| 419 case Encoding_Latin3: | |
| 420 return "ISO-8859-3"; | |
| 421 break; | |
| 422 | |
| 423 case Encoding_Latin4: | |
| 424 return "ISO-8859-4"; | |
| 425 break; | |
| 426 | |
| 427 case Encoding_Latin5: | |
| 428 return "ISO-8859-9"; | |
| 429 break; | |
| 430 | |
| 431 case Encoding_Cyrillic: | |
| 432 return "ISO-8859-5"; | |
| 433 break; | |
| 434 | |
| 435 case Encoding_Windows1251: | |
| 436 return "WINDOWS-1251"; | |
| 437 break; | |
| 438 | |
| 439 case Encoding_Arabic: | |
| 440 return "ISO-8859-6"; | |
| 441 break; | |
| 442 | |
| 443 case Encoding_Greek: | |
| 444 return "ISO-8859-7"; | |
| 445 break; | |
| 446 | |
| 447 case Encoding_Hebrew: | |
| 448 return "ISO-8859-8"; | |
| 449 break; | |
| 450 | |
| 451 case Encoding_Japanese: | |
| 452 return "SHIFT-JIS"; | |
| 453 break; | |
| 454 | |
| 455 case Encoding_Chinese: | |
| 456 return "GB18030"; | |
| 457 break; | |
| 458 | |
| 459 case Encoding_Thai: | |
| 460 return "TIS620.2533-0"; | |
| 461 break; | |
| 462 | |
| 463 default: | |
| 464 throw OrthancException(ErrorCode_NotImplemented); | |
| 465 } | |
| 466 } | |
| 172 | 467 #endif |
| 78 | 468 |
| 469 | |
| 167 | 470 #if ORTHANC_ENABLE_LOCALE == 1 |
| 78 | 471 std::string Toolbox::ConvertToUtf8(const std::string& source, |
| 472 Encoding sourceEncoding) | |
| 473 { | |
| 474 if (sourceEncoding == Encoding_Utf8) | |
| 475 { | |
| 476 // Already in UTF-8: No conversion is required | |
| 477 return source; | |
| 478 } | |
| 479 | |
| 480 if (sourceEncoding == Encoding_Ascii) | |
| 481 { | |
| 482 return ConvertToAscii(source); | |
| 483 } | |
| 484 | |
| 485 const char* encoding = GetBoostLocaleEncoding(sourceEncoding); | |
| 486 | |
| 487 try | |
| 488 { | |
| 489 return boost::locale::conv::to_utf<char>(source, encoding); | |
| 490 } | |
| 491 catch (std::runtime_error&) | |
| 492 { | |
| 493 // Bad input string or bad encoding | |
| 494 return ConvertToAscii(source); | |
| 495 } | |
| 496 } | |
| 167 | 497 #endif |
| 498 | |
| 78 | 499 |
| 167 | 500 #if ORTHANC_ENABLE_LOCALE == 1 |
| 78 | 501 std::string Toolbox::ConvertFromUtf8(const std::string& source, |
| 502 Encoding targetEncoding) | |
| 503 { | |
| 504 if (targetEncoding == Encoding_Utf8) | |
| 505 { | |
| 506 // Already in UTF-8: No conversion is required | |
| 507 return source; | |
| 508 } | |
| 509 | |
| 510 if (targetEncoding == Encoding_Ascii) | |
| 511 { | |
| 512 return ConvertToAscii(source); | |
| 513 } | |
| 514 | |
| 515 const char* encoding = GetBoostLocaleEncoding(targetEncoding); | |
| 516 | |
| 517 try | |
| 518 { | |
| 519 return boost::locale::conv::from_utf<char>(source, encoding); | |
| 520 } | |
| 521 catch (std::runtime_error&) | |
| 522 { | |
| 523 // Bad input string or bad encoding | |
| 524 return ConvertToAscii(source); | |
| 525 } | |
| 526 } | |
| 167 | 527 #endif |
| 78 | 528 |
| 529 | |
| 145 | 530 bool Toolbox::IsAsciiString(const void* data, |
| 531 size_t size) | |
| 532 { | |
| 533 const uint8_t* p = reinterpret_cast<const uint8_t*>(data); | |
| 534 | |
| 535 for (size_t i = 0; i < size; i++, p++) | |
| 536 { | |
| 537 if (*p > 127 || (*p != 0 && iscntrl(*p))) | |
| 538 { | |
| 539 return false; | |
| 540 } | |
| 541 } | |
| 542 | |
| 543 return true; | |
| 544 } | |
| 545 | |
| 546 | |
| 78 | 547 std::string Toolbox::ConvertToAscii(const std::string& source) |
| 548 { | |
| 549 std::string result; | |
| 550 | |
| 551 result.reserve(source.size() + 1); | |
| 552 for (size_t i = 0; i < source.size(); i++) | |
| 553 { | |
| 554 if (source[i] <= 127 && source[i] >= 0 && !iscntrl(source[i])) | |
| 555 { | |
| 556 result.push_back(source[i]); | |
| 557 } | |
| 558 } | |
| 559 | |
| 560 return result; | |
| 561 } | |
| 562 | |
| 90 | 563 |
| 78 | 564 void Toolbox::ComputeSHA1(std::string& result, |
| 90 | 565 const void* data, |
| 566 size_t size) | |
| 78 | 567 { |
| 568 boost::uuids::detail::sha1 sha1; | |
| 569 | |
| 90 | 570 if (size > 0) |
| 78 | 571 { |
| 90 | 572 sha1.process_bytes(data, size); |
| 78 | 573 } |
| 574 | |
| 575 unsigned int digest[5]; | |
| 576 | |
| 577 // Sanity check for the memory layout: A SHA-1 digest is 160 bits wide | |
| 578 assert(sizeof(unsigned int) == 4 && sizeof(digest) == (160 / 8)); | |
| 579 | |
| 580 sha1.get_digest(digest); | |
| 581 | |
| 582 result.resize(8 * 5 + 4); | |
| 583 sprintf(&result[0], "%08x-%08x-%08x-%08x-%08x", | |
| 584 digest[0], | |
| 585 digest[1], | |
| 586 digest[2], | |
| 587 digest[3], | |
| 588 digest[4]); | |
| 589 } | |
| 590 | |
| 90 | 591 void Toolbox::ComputeSHA1(std::string& result, |
| 592 const std::string& data) | |
| 593 { | |
| 594 if (data.size() > 0) | |
| 595 { | |
| 596 ComputeSHA1(result, data.c_str(), data.size()); | |
| 597 } | |
| 598 else | |
| 599 { | |
| 600 ComputeSHA1(result, NULL, 0); | |
| 601 } | |
| 602 } | |
| 603 | |
| 604 | |
| 78 | 605 bool Toolbox::IsSHA1(const char* str, |
| 606 size_t size) | |
| 607 { | |
| 608 if (size == 0) | |
| 609 { | |
| 610 return false; | |
| 611 } | |
| 612 | |
| 613 const char* start = str; | |
| 614 const char* end = str + size; | |
| 615 | |
| 616 // Trim the beginning of the string | |
| 617 while (start < end) | |
| 618 { | |
| 619 if (*start == '\0' || | |
| 620 isspace(*start)) | |
| 621 { | |
| 622 start++; | |
| 623 } | |
| 624 else | |
| 625 { | |
| 626 break; | |
| 627 } | |
| 628 } | |
| 629 | |
| 630 // Trim the trailing of the string | |
| 631 while (start < end) | |
| 632 { | |
| 633 if (*(end - 1) == '\0' || | |
| 634 isspace(*(end - 1))) | |
| 635 { | |
| 636 end--; | |
| 637 } | |
| 638 else | |
| 639 { | |
| 640 break; | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 if (end - start != 44) | |
| 645 { | |
| 646 return false; | |
| 647 } | |
| 648 | |
| 649 for (unsigned int i = 0; i < 44; i++) | |
| 650 { | |
| 651 if (i == 8 || | |
| 652 i == 17 || | |
| 653 i == 26 || | |
| 654 i == 35) | |
| 655 { | |
| 656 if (start[i] != '-') | |
| 657 return false; | |
| 658 } | |
| 659 else | |
| 660 { | |
| 661 if (!isalnum(start[i])) | |
| 662 return false; | |
| 663 } | |
| 664 } | |
| 665 | |
| 666 return true; | |
| 667 } | |
| 668 | |
| 669 | |
| 670 bool Toolbox::IsSHA1(const std::string& s) | |
| 671 { | |
| 672 if (s.size() == 0) | |
| 673 { | |
| 674 return false; | |
| 675 } | |
| 676 else | |
| 677 { | |
| 678 return IsSHA1(s.c_str(), s.size()); | |
| 679 } | |
| 680 } | |
| 681 | |
| 682 | |
| 683 std::string Toolbox::StripSpaces(const std::string& source) | |
| 684 { | |
| 685 size_t first = 0; | |
| 686 | |
| 687 while (first < source.length() && | |
| 688 isspace(source[first])) | |
| 689 { | |
| 690 first++; | |
| 691 } | |
| 692 | |
| 693 if (first == source.length()) | |
| 694 { | |
| 695 // String containing only spaces | |
| 696 return ""; | |
| 697 } | |
| 698 | |
| 699 size_t last = source.length(); | |
| 700 while (last > first && | |
| 701 isspace(source[last - 1])) | |
| 702 { | |
| 703 last--; | |
| 704 } | |
| 705 | |
| 706 assert(first <= last); | |
| 707 return source.substr(first, last - first); | |
| 708 } | |
| 709 | |
| 710 | |
| 711 static char Hex2Dec(char c) | |
| 712 { | |
| 713 return ((c >= '0' && c <= '9') ? c - '0' : | |
| 714 ((c >= 'a' && c <= 'f') ? c - 'a' + 10 : c - 'A' + 10)); | |
| 715 } | |
| 716 | |
| 717 void Toolbox::UrlDecode(std::string& s) | |
| 718 { | |
| 719 // http://en.wikipedia.org/wiki/Percent-encoding | |
| 720 // http://www.w3schools.com/tags/ref_urlencode.asp | |
| 721 // http://stackoverflow.com/questions/154536/encode-decode-urls-in-c | |
| 722 | |
| 723 if (s.size() == 0) | |
| 724 { | |
| 725 return; | |
| 726 } | |
| 727 | |
| 728 size_t source = 0; | |
| 729 size_t target = 0; | |
| 730 | |
| 731 while (source < s.size()) | |
| 732 { | |
| 733 if (s[source] == '%' && | |
| 734 source + 2 < s.size() && | |
| 735 isalnum(s[source + 1]) && | |
| 736 isalnum(s[source + 2])) | |
| 737 { | |
| 738 s[target] = (Hex2Dec(s[source + 1]) << 4) | Hex2Dec(s[source + 2]); | |
| 739 source += 3; | |
| 740 target += 1; | |
| 741 } | |
| 742 else | |
| 743 { | |
| 744 if (s[source] == '+') | |
| 745 s[target] = ' '; | |
| 746 else | |
| 747 s[target] = s[source]; | |
| 748 | |
| 749 source++; | |
| 750 target++; | |
| 751 } | |
| 752 } | |
| 753 | |
| 754 s.resize(target); | |
| 755 } | |
| 756 | |
| 757 | |
| 758 Endianness Toolbox::DetectEndianness() | |
| 759 { | |
| 760 // http://sourceforge.net/p/predef/wiki/Endianness/ | |
| 761 | |
| 762 uint8_t buffer[4]; | |
| 763 | |
| 764 buffer[0] = 0x00; | |
| 765 buffer[1] = 0x01; | |
| 766 buffer[2] = 0x02; | |
| 767 buffer[3] = 0x03; | |
| 768 | |
| 769 switch (*((uint32_t *)buffer)) | |
| 770 { | |
| 771 case 0x00010203: | |
| 772 return Endianness_Big; | |
| 773 | |
| 774 case 0x03020100: | |
| 775 return Endianness_Little; | |
| 776 | |
| 777 default: | |
| 778 throw OrthancException(ErrorCode_NotImplemented); | |
| 779 } | |
| 780 } | |
| 781 | |
| 782 | |
| 783 std::string Toolbox::WildcardToRegularExpression(const std::string& source) | |
| 784 { | |
| 785 // TODO - Speed up this with a regular expression | |
| 786 | |
| 787 std::string result = source; | |
| 788 | |
| 789 // Escape all special characters | |
| 790 boost::replace_all(result, "\\", "\\\\"); | |
| 791 boost::replace_all(result, "^", "\\^"); | |
| 792 boost::replace_all(result, ".", "\\."); | |
| 793 boost::replace_all(result, "$", "\\$"); | |
| 794 boost::replace_all(result, "|", "\\|"); | |
| 795 boost::replace_all(result, "(", "\\("); | |
| 796 boost::replace_all(result, ")", "\\)"); | |
| 797 boost::replace_all(result, "[", "\\["); | |
| 798 boost::replace_all(result, "]", "\\]"); | |
| 799 boost::replace_all(result, "+", "\\+"); | |
| 800 boost::replace_all(result, "/", "\\/"); | |
| 801 boost::replace_all(result, "{", "\\{"); | |
| 802 boost::replace_all(result, "}", "\\}"); | |
| 803 | |
| 804 // Convert wildcards '*' and '?' to their regex equivalents | |
| 805 boost::replace_all(result, "?", "."); | |
| 806 boost::replace_all(result, "*", ".*"); | |
| 807 | |
| 808 return result; | |
| 809 } | |
| 810 | |
| 811 | |
| 812 void Toolbox::TokenizeString(std::vector<std::string>& result, | |
| 813 const std::string& value, | |
| 814 char separator) | |
| 815 { | |
| 816 result.clear(); | |
| 817 | |
| 818 std::string currentItem; | |
| 819 | |
| 820 for (size_t i = 0; i < value.size(); i++) | |
| 821 { | |
| 822 if (value[i] == separator) | |
| 823 { | |
| 824 result.push_back(currentItem); | |
| 825 currentItem.clear(); | |
| 826 } | |
| 827 else | |
| 828 { | |
| 829 currentItem.push_back(value[i]); | |
| 830 } | |
| 831 } | |
| 832 | |
| 833 result.push_back(currentItem); | |
| 834 } | |
| 835 | |
| 836 | |
| 148 | 837 #if ORTHANC_ENABLE_PUGIXML == 1 |
| 78 | 838 class ChunkedBufferWriter : public pugi::xml_writer |
| 839 { | |
| 840 private: | |
| 841 ChunkedBuffer buffer_; | |
| 842 | |
| 843 public: | |
| 844 virtual void write(const void *data, size_t size) | |
| 845 { | |
| 846 if (size > 0) | |
| 847 { | |
| 848 buffer_.AddChunk(reinterpret_cast<const char*>(data), size); | |
| 849 } | |
| 850 } | |
| 851 | |
| 852 void Flatten(std::string& s) | |
| 853 { | |
| 854 buffer_.Flatten(s); | |
| 855 } | |
| 856 }; | |
| 857 | |
| 858 | |
| 859 static void JsonToXmlInternal(pugi::xml_node& target, | |
| 860 const Json::Value& source, | |
| 861 const std::string& arrayElement) | |
| 862 { | |
| 863 // http://jsoncpp.sourceforge.net/value_8h_source.html#l00030 | |
| 864 | |
| 865 switch (source.type()) | |
| 866 { | |
| 867 case Json::nullValue: | |
| 868 { | |
| 869 target.append_child(pugi::node_pcdata).set_value("null"); | |
| 870 break; | |
| 871 } | |
| 872 | |
| 873 case Json::intValue: | |
| 874 { | |
| 875 std::string s = boost::lexical_cast<std::string>(source.asInt()); | |
| 876 target.append_child(pugi::node_pcdata).set_value(s.c_str()); | |
| 877 break; | |
| 878 } | |
| 879 | |
| 880 case Json::uintValue: | |
| 881 { | |
| 882 std::string s = boost::lexical_cast<std::string>(source.asUInt()); | |
| 883 target.append_child(pugi::node_pcdata).set_value(s.c_str()); | |
| 884 break; | |
| 885 } | |
| 886 | |
| 887 case Json::realValue: | |
| 888 { | |
| 889 std::string s = boost::lexical_cast<std::string>(source.asFloat()); | |
| 890 target.append_child(pugi::node_pcdata).set_value(s.c_str()); | |
| 891 break; | |
| 892 } | |
| 893 | |
| 894 case Json::stringValue: | |
| 895 { | |
| 896 target.append_child(pugi::node_pcdata).set_value(source.asString().c_str()); | |
| 897 break; | |
| 898 } | |
| 899 | |
| 900 case Json::booleanValue: | |
| 901 { | |
| 902 target.append_child(pugi::node_pcdata).set_value(source.asBool() ? "true" : "false"); | |
| 903 break; | |
| 904 } | |
| 905 | |
| 906 case Json::arrayValue: | |
| 907 { | |
| 908 for (Json::Value::ArrayIndex i = 0; i < source.size(); i++) | |
| 909 { | |
| 910 pugi::xml_node node = target.append_child(); | |
| 911 node.set_name(arrayElement.c_str()); | |
| 912 JsonToXmlInternal(node, source[i], arrayElement); | |
| 913 } | |
| 914 break; | |
| 915 } | |
| 916 | |
| 917 case Json::objectValue: | |
| 918 { | |
| 919 Json::Value::Members members = source.getMemberNames(); | |
| 920 | |
| 921 for (size_t i = 0; i < members.size(); i++) | |
| 922 { | |
| 923 pugi::xml_node node = target.append_child(); | |
| 924 node.set_name(members[i].c_str()); | |
| 925 JsonToXmlInternal(node, source[members[i]], arrayElement); | |
| 926 } | |
| 927 | |
| 928 break; | |
| 929 } | |
| 930 | |
| 931 default: | |
| 932 throw OrthancException(ErrorCode_NotImplemented); | |
| 933 } | |
| 934 } | |
| 935 | |
| 936 | |
| 937 void Toolbox::JsonToXml(std::string& target, | |
| 938 const Json::Value& source, | |
| 939 const std::string& rootElement, | |
| 940 const std::string& arrayElement) | |
| 941 { | |
| 942 pugi::xml_document doc; | |
| 943 | |
| 944 pugi::xml_node n = doc.append_child(rootElement.c_str()); | |
| 945 JsonToXmlInternal(n, source, arrayElement); | |
| 946 | |
| 947 pugi::xml_node decl = doc.prepend_child(pugi::node_declaration); | |
| 948 decl.append_attribute("version").set_value("1.0"); | |
| 949 decl.append_attribute("encoding").set_value("utf-8"); | |
| 950 | |
| 951 ChunkedBufferWriter writer; | |
| 952 doc.save(writer, " ", pugi::format_default, pugi::encoding_utf8); | |
| 953 writer.Flatten(target); | |
| 954 } | |
| 955 | |
| 956 #endif | |
| 957 | |
| 958 | |
| 959 | |
| 960 bool Toolbox::IsInteger(const std::string& str) | |
| 961 { | |
| 962 std::string s = StripSpaces(str); | |
| 963 | |
| 964 if (s.size() == 0) | |
| 965 { | |
| 966 return false; | |
| 967 } | |
| 968 | |
| 969 size_t pos = 0; | |
| 970 if (s[0] == '-') | |
| 971 { | |
| 972 if (s.size() == 1) | |
| 973 { | |
| 974 return false; | |
| 975 } | |
| 976 | |
| 977 pos = 1; | |
| 978 } | |
| 979 | |
| 980 while (pos < s.size()) | |
| 981 { | |
| 982 if (!isdigit(s[pos])) | |
| 983 { | |
| 984 return false; | |
| 985 } | |
| 986 | |
| 987 pos++; | |
| 988 } | |
| 989 | |
| 990 return true; | |
| 991 } | |
| 992 | |
| 993 | |
| 994 void Toolbox::CopyJsonWithoutComments(Json::Value& target, | |
| 995 const Json::Value& source) | |
| 996 { | |
| 997 switch (source.type()) | |
| 998 { | |
| 999 case Json::nullValue: | |
| 1000 target = Json::nullValue; | |
| 1001 break; | |
| 1002 | |
| 1003 case Json::intValue: | |
| 1004 target = source.asInt64(); | |
| 1005 break; | |
| 1006 | |
| 1007 case Json::uintValue: | |
| 1008 target = source.asUInt64(); | |
| 1009 break; | |
| 1010 | |
| 1011 case Json::realValue: | |
| 1012 target = source.asDouble(); | |
| 1013 break; | |
| 1014 | |
| 1015 case Json::stringValue: | |
| 1016 target = source.asString(); | |
| 1017 break; | |
| 1018 | |
| 1019 case Json::booleanValue: | |
| 1020 target = source.asBool(); | |
| 1021 break; | |
| 1022 | |
| 1023 case Json::arrayValue: | |
| 1024 { | |
| 1025 target = Json::arrayValue; | |
| 1026 for (Json::Value::ArrayIndex i = 0; i < source.size(); i++) | |
| 1027 { | |
| 1028 Json::Value& item = target.append(Json::nullValue); | |
| 1029 CopyJsonWithoutComments(item, source[i]); | |
| 1030 } | |
| 1031 | |
| 1032 break; | |
| 1033 } | |
| 1034 | |
| 1035 case Json::objectValue: | |
| 1036 { | |
| 1037 target = Json::objectValue; | |
| 1038 Json::Value::Members members = source.getMemberNames(); | |
| 1039 for (Json::Value::ArrayIndex i = 0; i < members.size(); i++) | |
| 1040 { | |
| 1041 const std::string item = members[i]; | |
| 1042 CopyJsonWithoutComments(target[item], source[item]); | |
| 1043 } | |
| 1044 | |
| 1045 break; | |
| 1046 } | |
| 1047 | |
| 1048 default: | |
| 1049 break; | |
| 1050 } | |
| 1051 } | |
| 1052 | |
| 1053 | |
| 1054 bool Toolbox::StartsWith(const std::string& str, | |
| 1055 const std::string& prefix) | |
| 1056 { | |
| 1057 if (str.size() < prefix.size()) | |
| 1058 { | |
| 1059 return false; | |
| 1060 } | |
| 1061 else | |
| 1062 { | |
| 1063 return str.compare(0, prefix.size(), prefix) == 0; | |
| 1064 } | |
| 1065 } | |
| 141 | 1066 |
| 1067 | |
| 1068 static bool IsUnreservedCharacter(char c) | |
| 1069 { | |
| 1070 // This function checks whether "c" is an unserved character | |
| 1071 // wrt. an URI percent-encoding | |
| 1072 // https://en.wikipedia.org/wiki/Percent-encoding#Percent-encoding%5Fin%5Fa%5FURI | |
| 1073 | |
| 1074 return ((c >= 'A' && c <= 'Z') || | |
| 1075 (c >= 'a' && c <= 'z') || | |
| 1076 (c >= '0' && c <= '9') || | |
| 1077 c == '-' || | |
| 1078 c == '_' || | |
| 1079 c == '.' || | |
| 1080 c == '~'); | |
| 1081 } | |
| 1082 | |
| 1083 void Toolbox::UriEncode(std::string& target, | |
| 1084 const std::string& source) | |
| 1085 { | |
| 1086 // Estimate the length of the percent-encoded URI | |
| 1087 size_t length = 0; | |
| 1088 | |
| 1089 for (size_t i = 0; i < source.size(); i++) | |
| 1090 { | |
| 1091 if (IsUnreservedCharacter(source[i])) | |
| 1092 { | |
| 1093 length += 1; | |
| 1094 } | |
| 1095 else | |
| 1096 { | |
| 1097 // This character must be percent-encoded | |
| 1098 length += 3; | |
| 1099 } | |
| 1100 } | |
| 1101 | |
| 1102 target.clear(); | |
| 1103 target.reserve(length); | |
| 1104 | |
| 1105 for (size_t i = 0; i < source.size(); i++) | |
| 1106 { | |
| 1107 if (IsUnreservedCharacter(source[i])) | |
| 1108 { | |
| 1109 target.push_back(source[i]); | |
| 1110 } | |
| 1111 else | |
| 1112 { | |
| 1113 // This character must be percent-encoded | |
| 1114 uint8_t byte = static_cast<uint8_t>(source[i]); | |
| 1115 uint8_t a = byte >> 4; | |
| 1116 uint8_t b = byte & 0x0f; | |
| 1117 | |
| 1118 target.push_back('%'); | |
| 1119 target.push_back(a < 10 ? a + '0' : a - 10 + 'A'); | |
| 1120 target.push_back(b < 10 ? b + '0' : b - 10 + 'A'); | |
| 1121 } | |
| 1122 } | |
| 1123 } | |
| 1124 | |
| 1125 | |
| 1126 static bool HasField(const Json::Value& json, | |
| 1127 const std::string& key, | |
| 1128 Json::ValueType expectedType) | |
| 1129 { | |
| 1130 if (json.type() != Json::objectValue || | |
| 1131 !json.isMember(key)) | |
| 1132 { | |
| 1133 return false; | |
| 1134 } | |
| 1135 else if (json[key].type() == expectedType) | |
| 1136 { | |
| 1137 return true; | |
| 1138 } | |
| 1139 else | |
| 1140 { | |
| 1141 throw OrthancException(ErrorCode_BadParameterType); | |
| 1142 } | |
| 1143 } | |
| 1144 | |
| 1145 | |
| 1146 std::string Toolbox::GetJsonStringField(const Json::Value& json, | |
| 1147 const std::string& key, | |
| 1148 const std::string& defaultValue) | |
| 1149 { | |
| 1150 if (HasField(json, key, Json::stringValue)) | |
| 1151 { | |
| 1152 return json[key].asString(); | |
| 1153 } | |
| 1154 else | |
| 1155 { | |
| 1156 return defaultValue; | |
| 1157 } | |
| 1158 } | |
| 1159 | |
| 1160 | |
| 1161 bool Toolbox::GetJsonBooleanField(const ::Json::Value& json, | |
| 1162 const std::string& key, | |
| 1163 bool defaultValue) | |
| 1164 { | |
| 1165 if (HasField(json, key, Json::booleanValue)) | |
| 1166 { | |
| 1167 return json[key].asBool(); | |
| 1168 } | |
| 1169 else | |
| 1170 { | |
| 1171 return defaultValue; | |
| 1172 } | |
| 1173 } | |
| 1174 | |
| 1175 | |
| 1176 int Toolbox::GetJsonIntegerField(const ::Json::Value& json, | |
| 1177 const std::string& key, | |
| 1178 int defaultValue) | |
| 1179 { | |
| 1180 if (HasField(json, key, Json::intValue)) | |
| 1181 { | |
| 1182 return json[key].asInt(); | |
| 1183 } | |
| 1184 else | |
| 1185 { | |
| 1186 return defaultValue; | |
| 1187 } | |
| 1188 } | |
| 1189 | |
| 1190 | |
| 1191 unsigned int Toolbox::GetJsonUnsignedIntegerField(const ::Json::Value& json, | |
| 1192 const std::string& key, | |
| 1193 unsigned int defaultValue) | |
| 1194 { | |
| 1195 int v = GetJsonIntegerField(json, key, defaultValue); | |
| 1196 | |
| 1197 if (v < 0) | |
| 1198 { | |
| 1199 throw OrthancException(ErrorCode_ParameterOutOfRange); | |
| 1200 } | |
| 1201 else | |
| 1202 { | |
| 1203 return static_cast<unsigned int>(v); | |
| 1204 } | |
| 1205 } | |
| 150 | 1206 |
| 1207 | |
| 1208 bool Toolbox::IsUuid(const std::string& str) | |
| 1209 { | |
| 1210 if (str.size() != 36) | |
| 1211 { | |
| 1212 return false; | |
| 1213 } | |
| 1214 | |
| 1215 for (size_t i = 0; i < str.length(); i++) | |
| 1216 { | |
| 1217 if (i == 8 || i == 13 || i == 18 || i == 23) | |
| 1218 { | |
| 1219 if (str[i] != '-') | |
| 1220 return false; | |
| 1221 } | |
| 1222 else | |
| 1223 { | |
| 1224 if (!isalnum(str[i])) | |
| 1225 return false; | |
| 1226 } | |
| 1227 } | |
| 1228 | |
| 1229 return true; | |
| 1230 } | |
| 1231 | |
| 1232 | |
| 1233 bool Toolbox::StartsWithUuid(const std::string& str) | |
| 1234 { | |
| 1235 if (str.size() < 36) | |
| 1236 { | |
| 1237 return false; | |
| 1238 } | |
| 1239 | |
| 1240 if (str.size() == 36) | |
| 1241 { | |
| 1242 return IsUuid(str); | |
| 1243 } | |
| 1244 | |
| 1245 assert(str.size() > 36); | |
| 1246 if (!isspace(str[36])) | |
| 1247 { | |
| 1248 return false; | |
| 1249 } | |
| 1250 | |
| 1251 return IsUuid(str.substr(0, 36)); | |
| 1252 } | |
| 167 | 1253 |
| 1254 | |
| 1255 #if ORTHANC_ENABLE_LOCALE == 1 | |
| 1256 static std::auto_ptr<std::locale> globalLocale_; | |
| 1257 | |
| 1258 static bool SetGlobalLocale(const char* locale) | |
| 1259 { | |
| 1260 globalLocale_.reset(NULL); | |
| 1261 | |
| 1262 try | |
| 1263 { | |
| 1264 if (locale == NULL) | |
| 1265 { | |
| 1266 LOG(WARNING) << "Falling back to system-wide default locale"; | |
| 1267 globalLocale_.reset(new std::locale()); | |
| 1268 } | |
| 1269 else | |
| 1270 { | |
| 1271 LOG(INFO) << "Using locale: \"" << locale << "\" for case-insensitive comparison of strings"; | |
| 1272 globalLocale_.reset(new std::locale(locale)); | |
| 1273 } | |
| 1274 } | |
| 1275 catch (std::runtime_error&) | |
| 1276 { | |
| 1277 } | |
| 1278 | |
| 1279 return (globalLocale_.get() != NULL); | |
| 1280 } | |
| 1281 | |
| 1282 void Toolbox::InitializeGlobalLocale(const char* locale) | |
| 1283 { | |
| 1284 // Make Orthanc use English, United States locale | |
| 1285 // Linux: use "en_US.UTF-8" | |
| 1286 // Windows: use "" | |
| 1287 // Wine: use NULL | |
| 1288 | |
| 1289 #if defined(__MINGW32__) | |
| 1290 // Visibly, there is no support of locales in MinGW yet | |
| 1291 // http://mingw.5.n7.nabble.com/How-to-use-std-locale-global-with-MinGW-correct-td33048.html | |
| 1292 static const char* DEFAULT_LOCALE = NULL; | |
| 1293 #elif defined(_WIN32) | |
| 1294 // For Windows: use default locale (using "en_US" does not work) | |
| 1295 static const char* DEFAULT_LOCALE = ""; | |
| 1296 #else | |
| 1297 // For Linux & cie | |
| 1298 static const char* DEFAULT_LOCALE = "en_US.UTF-8"; | |
| 1299 #endif | |
| 1300 | |
| 1301 bool ok; | |
| 1302 | |
| 1303 if (locale == NULL) | |
| 1304 { | |
| 1305 ok = SetGlobalLocale(DEFAULT_LOCALE); | |
| 1306 | |
| 1307 #if defined(__MINGW32__) | |
| 1308 LOG(WARNING) << "This is a MinGW build, case-insensitive comparison of " | |
| 1309 << "strings with accents will not work outside of Wine"; | |
| 1310 #endif | |
| 1311 } | |
| 1312 else | |
| 1313 { | |
| 1314 ok = SetGlobalLocale(locale); | |
| 1315 } | |
| 1316 | |
| 1317 if (!ok && | |
| 1318 !SetGlobalLocale(NULL)) | |
| 1319 { | |
| 1320 LOG(ERROR) << "Cannot initialize global locale"; | |
| 1321 throw OrthancException(ErrorCode_InternalError); | |
| 1322 } | |
| 1323 | |
| 1324 } | |
| 1325 | |
| 1326 | |
| 1327 void Toolbox::FinalizeGlobalLocale() | |
| 1328 { | |
| 1329 globalLocale_.reset(); | |
| 1330 } | |
| 1331 | |
| 1332 | |
| 1333 std::string Toolbox::ToUpperCaseWithAccents(const std::string& source) | |
| 1334 { | |
| 1335 if (globalLocale_.get() == NULL) | |
| 1336 { | |
| 1337 LOG(ERROR) << "No global locale was set, call Toolbox::InitializeGlobalLocale()"; | |
| 1338 throw OrthancException(ErrorCode_BadSequenceOfCalls); | |
| 1339 } | |
| 1340 | |
| 1341 /** | |
| 1342 * A few notes about locales: | |
| 1343 * | |
| 1344 * (1) We don't use "case folding": | |
| 1345 * http://www.boost.org/doc/libs/1_64_0/libs/locale/doc/html/conversions.html | |
| 1346 * | |
| 1347 * Characters are made uppercase one by one. This is because, in | |
| 1348 * static builds, we are using iconv, which is visibly not | |
| 1349 * supported correctly (TODO: Understand why). Case folding seems | |
| 1350 * to be working correctly if using the default backend under | |
| 1351 * Linux (ICU or POSIX?). If one wishes to use case folding, one | |
| 1352 * would use: | |
| 1353 * | |
| 1354 * boost::locale::generator gen; | |
| 1355 * std::locale::global(gen(DEFAULT_LOCALE)); | |
| 1356 * return boost::locale::to_upper(source); | |
| 1357 * | |
| 1358 * (2) The function "boost::algorithm::to_upper_copy" does not | |
| 1359 * make use of the "std::locale::global()". We therefore create a | |
| 1360 * global variable "globalLocale_". | |
| 1361 * | |
| 1362 * (3) The variant of "boost::algorithm::to_upper_copy()" that | |
| 1363 * uses std::string does not work properly. We need to apply it | |
| 1364 * one wide strings (std::wstring). This explains the two calls to | |
| 1365 * "utf_to_utf" in order to convert to/from std::wstring. | |
| 1366 **/ | |
| 1367 | |
| 1368 std::wstring w = boost::locale::conv::utf_to_utf<wchar_t>(source); | |
| 1369 w = boost::algorithm::to_upper_copy<std::wstring>(w, *globalLocale_); | |
| 1370 return boost::locale::conv::utf_to_utf<char>(w); | |
| 1371 } | |
| 168 | 1372 #endif |
| 78 | 1373 } |