OLD | NEW |
1 /* | 1 /* |
2 * Copyright (C) 2004, 2006, 2008, 2011 Apple Inc. All rights reserved. | 2 * Copyright (C) 2004, 2006, 2008, 2011 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
(...skipping 446 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
457 } | 457 } |
458 | 458 |
459 template <typename CharType> | 459 template <typename CharType> |
460 CString TextCodecUTF8::EncodeCommon(const CharType* characters, size_t length) { | 460 CString TextCodecUTF8::EncodeCommon(const CharType* characters, size_t length) { |
461 // The maximum number of UTF-8 bytes needed per UTF-16 code unit is 3. | 461 // The maximum number of UTF-8 bytes needed per UTF-16 code unit is 3. |
462 // BMP characters take only one UTF-16 code unit and can take up to 3 bytes | 462 // BMP characters take only one UTF-16 code unit and can take up to 3 bytes |
463 // (3x). | 463 // (3x). |
464 // Non-BMP characters take two UTF-16 code units and can take up to 4 bytes | 464 // Non-BMP characters take two UTF-16 code units and can take up to 4 bytes |
465 // (2x). | 465 // (2x). |
466 if (length > std::numeric_limits<size_t>::max() / 3) | 466 if (length > std::numeric_limits<size_t>::max() / 3) |
467 CRASH(); | 467 IMMEDIATE_CRASH(); |
468 Vector<uint8_t> bytes(length * 3); | 468 Vector<uint8_t> bytes(length * 3); |
469 | 469 |
470 size_t i = 0; | 470 size_t i = 0; |
471 size_t bytes_written = 0; | 471 size_t bytes_written = 0; |
472 while (i < length) { | 472 while (i < length) { |
473 UChar32 character; | 473 UChar32 character; |
474 U16_NEXT(characters, i, length, character); | 474 U16_NEXT(characters, i, length, character); |
475 // U16_NEXT will simply emit a surrogate code point if an unmatched | 475 // U16_NEXT will simply emit a surrogate code point if an unmatched |
476 // surrogate is encountered; we must convert it to a | 476 // surrogate is encountered; we must convert it to a |
477 // U+FFFD (REPLACEMENT CHARACTER) here. | 477 // U+FFFD (REPLACEMENT CHARACTER) here. |
(...skipping 11 matching lines...) Expand all Loading... |
489 return EncodeCommon(characters, length); | 489 return EncodeCommon(characters, length); |
490 } | 490 } |
491 | 491 |
492 CString TextCodecUTF8::Encode(const LChar* characters, | 492 CString TextCodecUTF8::Encode(const LChar* characters, |
493 size_t length, | 493 size_t length, |
494 UnencodableHandling) { | 494 UnencodableHandling) { |
495 return EncodeCommon(characters, length); | 495 return EncodeCommon(characters, length); |
496 } | 496 } |
497 | 497 |
498 } // namespace WTF | 498 } // namespace WTF |
OLD | NEW |