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| 1 /* | 1 /* |
| 2 * Copyright (C) 2007 Apple Inc. All rights reserved. | 2 * Copyright (C) 2007 Apple Inc. All rights reserved. |
| 3 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com> | 3 * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com> |
| 4 * | 4 * |
| 5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
| 6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
| 7 * are met: | 7 * are met: |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
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| 146 if (ch < (UChar32)0x80) { | 146 if (ch < (UChar32)0x80) { |
| 147 bytesToWrite = 1; | 147 bytesToWrite = 1; |
| 148 } else if (ch < (UChar32)0x800) { | 148 } else if (ch < (UChar32)0x800) { |
| 149 bytesToWrite = 2; | 149 bytesToWrite = 2; |
| 150 } else if (ch < (UChar32)0x10000) { | 150 } else if (ch < (UChar32)0x10000) { |
| 151 bytesToWrite = 3; | 151 bytesToWrite = 3; |
| 152 } else if (ch < (UChar32)0x110000) { | 152 } else if (ch < (UChar32)0x110000) { |
| 153 bytesToWrite = 4; | 153 bytesToWrite = 4; |
| 154 } else { | 154 } else { |
| 155 bytesToWrite = 3; | 155 bytesToWrite = 3; |
| 156 ch = replacementCharacter; | 156 ch = characterReplacement; |
| 157 } | 157 } |
| 158 | 158 |
| 159 target += bytesToWrite; | 159 target += bytesToWrite; |
| 160 if (target > targetEnd) { | 160 if (target > targetEnd) { |
| 161 source = oldSource; // Back up source pointer! | 161 source = oldSource; // Back up source pointer! |
| 162 target -= bytesToWrite; | 162 target -= bytesToWrite; |
| 163 result = targetExhausted; | 163 result = targetExhausted; |
| 164 break; | 164 break; |
| 165 } | 165 } |
| 166 switch (bytesToWrite) { // note: everything falls through. | 166 switch (bytesToWrite) { // note: everything falls through. |
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| 257 } | 257 } |
| 258 | 258 |
| 259 if (U_IS_BMP(character)) { | 259 if (U_IS_BMP(character)) { |
| 260 // UTF-16 surrogate values are illegal in UTF-32 | 260 // UTF-16 surrogate values are illegal in UTF-32 |
| 261 if (U_IS_SURROGATE(character)) { | 261 if (U_IS_SURROGATE(character)) { |
| 262 if (strict) { | 262 if (strict) { |
| 263 source -= utf8SequenceLength; // return to the illegal value
itself | 263 source -= utf8SequenceLength; // return to the illegal value
itself |
| 264 result = sourceIllegal; | 264 result = sourceIllegal; |
| 265 break; | 265 break; |
| 266 } else { | 266 } else { |
| 267 *target++ = replacementCharacter; | 267 *target++ = characterReplacement; |
| 268 orAllData |= replacementCharacter; | 268 orAllData |= characterReplacement; |
| 269 } | 269 } |
| 270 } else { | 270 } else { |
| 271 *target++ = static_cast<UChar>(character); // normal case | 271 *target++ = static_cast<UChar>(character); // normal case |
| 272 orAllData |= character; | 272 orAllData |= character; |
| 273 } | 273 } |
| 274 } else if (U_IS_SUPPLEMENTARY(character)) { | 274 } else if (U_IS_SUPPLEMENTARY(character)) { |
| 275 // target is a character in range 0xFFFF - 0x10FFFF | 275 // target is a character in range 0xFFFF - 0x10FFFF |
| 276 if (target + 1 >= targetEnd) { | 276 if (target + 1 >= targetEnd) { |
| 277 source -= utf8SequenceLength; // Back up source pointer! | 277 source -= utf8SequenceLength; // Back up source pointer! |
| 278 result = targetExhausted; | 278 result = targetExhausted; |
| 279 break; | 279 break; |
| 280 } | 280 } |
| 281 *target++ = U16_LEAD(character); | 281 *target++ = U16_LEAD(character); |
| 282 *target++ = U16_TRAIL(character); | 282 *target++ = U16_TRAIL(character); |
| 283 orAllData = 0xffff; | 283 orAllData = 0xffff; |
| 284 } else { | 284 } else { |
| 285 if (strict) { | 285 if (strict) { |
| 286 source -= utf8SequenceLength; // return to the start | 286 source -= utf8SequenceLength; // return to the start |
| 287 result = sourceIllegal; | 287 result = sourceIllegal; |
| 288 break; // Bail out; shouldn't continue | 288 break; // Bail out; shouldn't continue |
| 289 } else { | 289 } else { |
| 290 *target++ = replacementCharacter; | 290 *target++ = characterReplacement; |
| 291 orAllData |= replacementCharacter; | 291 orAllData |= characterReplacement; |
| 292 } | 292 } |
| 293 } | 293 } |
| 294 } | 294 } |
| 295 *sourceStart = source; | 295 *sourceStart = source; |
| 296 *targetStart = target; | 296 *targetStart = target; |
| 297 | 297 |
| 298 if (sourceAllASCII) | 298 if (sourceAllASCII) |
| 299 *sourceAllASCII = !(orAllData & ~0x7f); | 299 *sourceAllASCII = !(orAllData & ~0x7f); |
| 300 | 300 |
| 301 return result; | 301 return result; |
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| 396 return equalWithUTF8Internal(a, aEnd, b, bEnd); | 396 return equalWithUTF8Internal(a, aEnd, b, bEnd); |
| 397 } | 397 } |
| 398 | 398 |
| 399 bool equalLatin1WithUTF8(const LChar* a, const LChar* aEnd, const char* b, const
char* bEnd) | 399 bool equalLatin1WithUTF8(const LChar* a, const LChar* aEnd, const char* b, const
char* bEnd) |
| 400 { | 400 { |
| 401 return equalWithUTF8Internal(a, aEnd, b, bEnd); | 401 return equalWithUTF8Internal(a, aEnd, b, bEnd); |
| 402 } | 402 } |
| 403 | 403 |
| 404 } // namespace Unicode | 404 } // namespace Unicode |
| 405 } // namespace WTF | 405 } // namespace WTF |
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