intl/uconv/ucvlatin/nsUTF16ToUnicode.h@6474c204b198 (annotated)
intl/uconv/ucvlatin/nsUTF16ToUnicode.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #ifndef nsUTF16ToUnicode_h_ |
| michael@0 | 7 | #define nsUTF16ToUnicode_h_ |
| michael@0 | 8 | |
| michael@0 | 9 | #include "nsISupports.h" |
| michael@0 | 10 | #include "nsUCSupport.h" |
| michael@0 | 11 | |
| michael@0 | 12 | // internal base class |
| michael@0 | 13 | class nsUTF16ToUnicodeBase : public nsBasicDecoderSupport |
| michael@0 | 14 | { |
| michael@0 | 15 | protected: |
| michael@0 | 16 | // ctor accessible only by child classes |
| michael@0 | 17 | nsUTF16ToUnicodeBase() { Reset();} |
| michael@0 | 18 | |
| michael@0 | 19 | nsresult UTF16ConvertToUnicode(const char * aSrc, |
| michael@0 | 20 | int32_t * aSrcLength, char16_t * aDest, |
| michael@0 | 21 | int32_t * aDestLength, bool aSwapBytes); |
| michael@0 | 22 | |
| michael@0 | 23 | public: |
| michael@0 | 24 | //-------------------------------------------------------------------- |
| michael@0 | 25 | // Subclassing of nsDecoderSupport class [declaration] |
| michael@0 | 26 | |
| michael@0 | 27 | NS_IMETHOD GetMaxLength(const char * aSrc, int32_t aSrcLength, |
| michael@0 | 28 | int32_t * aDestLength); |
| michael@0 | 29 | NS_IMETHOD Reset(); |
| michael@0 | 30 | |
| michael@0 | 31 | protected: |
| michael@0 | 32 | uint8_t mState; |
| michael@0 | 33 | // to store an odd byte left over between runs |
| michael@0 | 34 | uint8_t mOddByte; |
| michael@0 | 35 | // to store an odd high surrogate left over between runs |
| michael@0 | 36 | char16_t mOddHighSurrogate; |
| michael@0 | 37 | // to store an odd low surrogate left over between runs |
| michael@0 | 38 | char16_t mOddLowSurrogate; |
| michael@0 | 39 | }; |
| michael@0 | 40 | |
| michael@0 | 41 | // UTF-16 big endian |
| michael@0 | 42 | class nsUTF16BEToUnicode : public nsUTF16ToUnicodeBase |
| michael@0 | 43 | { |
| michael@0 | 44 | public: |
| michael@0 | 45 | |
| michael@0 | 46 | NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength, |
| michael@0 | 47 | char16_t * aDest, int32_t * aDestLength); |
| michael@0 | 48 | }; |
| michael@0 | 49 | |
| michael@0 | 50 | // UTF-16 little endian |
| michael@0 | 51 | class nsUTF16LEToUnicode : public nsUTF16ToUnicodeBase |
| michael@0 | 52 | { |
| michael@0 | 53 | public: |
| michael@0 | 54 | |
| michael@0 | 55 | NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength, |
| michael@0 | 56 | char16_t * aDest, int32_t * aDestLength); |
| michael@0 | 57 | }; |
| michael@0 | 58 | |
| michael@0 | 59 | // UTF-16 with BOM |
| michael@0 | 60 | class nsUTF16ToUnicode : public nsUTF16ToUnicodeBase |
| michael@0 | 61 | { |
| michael@0 | 62 | public: |
| michael@0 | 63 | |
| michael@0 | 64 | nsUTF16ToUnicode() { Reset();} |
| michael@0 | 65 | NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength, |
| michael@0 | 66 | char16_t * aDest, int32_t * aDestLength); |
| michael@0 | 67 | |
| michael@0 | 68 | NS_IMETHOD Reset(); |
| michael@0 | 69 | |
| michael@0 | 70 | private: |
| michael@0 | 71 | |
| michael@0 | 72 | enum Endian {kUnknown, kBigEndian, kLittleEndian}; |
| michael@0 | 73 | Endian mEndian; |
| michael@0 | 74 | bool mFoundBOM; |
| michael@0 | 75 | }; |
| michael@0 | 76 | |
| michael@0 | 77 | #endif /* nsUTF16ToUnicode_h_ */ |
