The Tor Browser / file comparison
comparison: intl/uconv/ucvlatin/nsUTF16ToUnicode.h
intl/uconv/ucvlatin/nsUTF16ToUnicode.h
- branch
- TOR_BUG_3246
- changeset 4
- fc2d59ddac77
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| -1:000000000000 | 0:e9986b356805 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nsUTF16ToUnicode_h_ | |
| 7 #define nsUTF16ToUnicode_h_ | |
| 8 | |
| 9 #include "nsISupports.h" | |
| 10 #include "nsUCSupport.h" | |
| 11 | |
| 12 // internal base class | |
| 13 class nsUTF16ToUnicodeBase : public nsBasicDecoderSupport | |
| 14 { | |
| 15 protected: | |
| 16 // ctor accessible only by child classes | |
| 17 nsUTF16ToUnicodeBase() { Reset();} | |
| 18 | |
| 19 nsresult UTF16ConvertToUnicode(const char * aSrc, | |
| 20 int32_t * aSrcLength, char16_t * aDest, | |
| 21 int32_t * aDestLength, bool aSwapBytes); | |
| 22 | |
| 23 public: | |
| 24 //-------------------------------------------------------------------- | |
| 25 // Subclassing of nsDecoderSupport class [declaration] | |
| 26 | |
| 27 NS_IMETHOD GetMaxLength(const char * aSrc, int32_t aSrcLength, | |
| 28 int32_t * aDestLength); | |
| 29 NS_IMETHOD Reset(); | |
| 30 | |
| 31 protected: | |
| 32 uint8_t mState; | |
| 33 // to store an odd byte left over between runs | |
| 34 uint8_t mOddByte; | |
| 35 // to store an odd high surrogate left over between runs | |
| 36 char16_t mOddHighSurrogate; | |
| 37 // to store an odd low surrogate left over between runs | |
| 38 char16_t mOddLowSurrogate; | |
| 39 }; | |
| 40 | |
| 41 // UTF-16 big endian | |
| 42 class nsUTF16BEToUnicode : public nsUTF16ToUnicodeBase | |
| 43 { | |
| 44 public: | |
| 45 | |
| 46 NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength, | |
| 47 char16_t * aDest, int32_t * aDestLength); | |
| 48 }; | |
| 49 | |
| 50 // UTF-16 little endian | |
| 51 class nsUTF16LEToUnicode : public nsUTF16ToUnicodeBase | |
| 52 { | |
| 53 public: | |
| 54 | |
| 55 NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength, | |
| 56 char16_t * aDest, int32_t * aDestLength); | |
| 57 }; | |
| 58 | |
| 59 // UTF-16 with BOM | |
| 60 class nsUTF16ToUnicode : public nsUTF16ToUnicodeBase | |
| 61 { | |
| 62 public: | |
| 63 | |
| 64 nsUTF16ToUnicode() { Reset();} | |
| 65 NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength, | |
| 66 char16_t * aDest, int32_t * aDestLength); | |
| 67 | |
| 68 NS_IMETHOD Reset(); | |
| 69 | |
| 70 private: | |
| 71 | |
| 72 enum Endian {kUnknown, kBigEndian, kLittleEndian}; | |
| 73 Endian mEndian; | |
| 74 bool mFoundBOM; | |
| 75 }; | |
| 76 | |
| 77 #endif /* nsUTF16ToUnicode_h_ */ |
