1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/uconv/ucvlatin/nsUTF16ToUnicode.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,77 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsUTF16ToUnicode_h_
1.10 +#define nsUTF16ToUnicode_h_
1.11 +
1.12 +#include "nsISupports.h"
1.13 +#include "nsUCSupport.h"
1.14 +
1.15 +// internal base class
1.16 +class nsUTF16ToUnicodeBase : public nsBasicDecoderSupport
1.17 +{
1.18 +protected:
1.19 + // ctor accessible only by child classes
1.20 + nsUTF16ToUnicodeBase() { Reset();}
1.21 +
1.22 + nsresult UTF16ConvertToUnicode(const char * aSrc,
1.23 + int32_t * aSrcLength, char16_t * aDest,
1.24 + int32_t * aDestLength, bool aSwapBytes);
1.25 +
1.26 +public:
1.27 + //--------------------------------------------------------------------
1.28 + // Subclassing of nsDecoderSupport class [declaration]
1.29 +
1.30 + NS_IMETHOD GetMaxLength(const char * aSrc, int32_t aSrcLength,
1.31 + int32_t * aDestLength);
1.32 + NS_IMETHOD Reset();
1.33 +
1.34 +protected:
1.35 + uint8_t mState;
1.36 + // to store an odd byte left over between runs
1.37 + uint8_t mOddByte;
1.38 + // to store an odd high surrogate left over between runs
1.39 + char16_t mOddHighSurrogate;
1.40 + // to store an odd low surrogate left over between runs
1.41 + char16_t mOddLowSurrogate;
1.42 +};
1.43 +
1.44 +// UTF-16 big endian
1.45 +class nsUTF16BEToUnicode : public nsUTF16ToUnicodeBase
1.46 +{
1.47 +public:
1.48 +
1.49 + NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength,
1.50 + char16_t * aDest, int32_t * aDestLength);
1.51 +};
1.52 +
1.53 +// UTF-16 little endian
1.54 +class nsUTF16LEToUnicode : public nsUTF16ToUnicodeBase
1.55 +{
1.56 +public:
1.57 +
1.58 + NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength,
1.59 + char16_t * aDest, int32_t * aDestLength);
1.60 +};
1.61 +
1.62 +// UTF-16 with BOM
1.63 +class nsUTF16ToUnicode : public nsUTF16ToUnicodeBase
1.64 +{
1.65 +public:
1.66 +
1.67 + nsUTF16ToUnicode() { Reset();}
1.68 + NS_IMETHOD Convert(const char * aSrc, int32_t * aSrcLength,
1.69 + char16_t * aDest, int32_t * aDestLength);
1.70 +
1.71 + NS_IMETHOD Reset();
1.72 +
1.73 +private:
1.74 +
1.75 + enum Endian {kUnknown, kBigEndian, kLittleEndian};
1.76 + Endian mEndian;
1.77 + bool mFoundBOM;
1.78 +};
1.79 +
1.80 +#endif /* nsUTF16ToUnicode_h_ */
