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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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