зеркало из https://github.com/mozilla/gecko-dev.git
57 строки
1.7 KiB
C++
57 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
#ifndef nsUnicodeToUTF16_h_
|
|
#define nsUnicodeToUTF16_h_
|
|
|
|
#include "nsUCSupport.h"
|
|
|
|
class nsUnicodeToUTF16BE: public nsBasicEncoder
|
|
{
|
|
public:
|
|
nsUnicodeToUTF16BE() { mBOM = 0;}
|
|
|
|
//--------------------------------------------------------------------
|
|
// Interface nsIUnicodeEncoder [declaration]
|
|
|
|
NS_IMETHOD Convert(const PRUnichar * aSrc, int32_t * aSrcLength,
|
|
char * aDest, int32_t * aDestLength);
|
|
NS_IMETHOD GetMaxLength(const PRUnichar * aSrc, int32_t aSrcLength,
|
|
int32_t * aDestLength);
|
|
NS_IMETHOD Finish(char * aDest, int32_t * aDestLength);
|
|
NS_IMETHOD Reset();
|
|
NS_IMETHOD SetOutputErrorBehavior(int32_t aBehavior,
|
|
nsIUnicharEncoder * aEncoder, PRUnichar aChar);
|
|
|
|
protected:
|
|
PRUnichar mBOM;
|
|
NS_IMETHOD CopyData(char* aDest, const PRUnichar* aSrc, int32_t aLen );
|
|
};
|
|
|
|
class nsUnicodeToUTF16LE: public nsUnicodeToUTF16BE
|
|
{
|
|
public:
|
|
nsUnicodeToUTF16LE() { mBOM = 0;}
|
|
|
|
protected:
|
|
NS_IMETHOD CopyData(char* aDest, const PRUnichar* aSrc, int32_t aLen );
|
|
};
|
|
|
|
// XXX In theory, we have to check the endianness at run-time because some
|
|
// modern RISC processors can be run at both LE and BE.
|
|
#ifdef IS_LITTLE_ENDIAN
|
|
class nsUnicodeToUTF16: public nsUnicodeToUTF16LE
|
|
#elif defined(IS_BIG_ENDIAN)
|
|
class nsUnicodeToUTF16: public nsUnicodeToUTF16BE
|
|
#else
|
|
#error "Unknown endianness"
|
|
#endif
|
|
{
|
|
public:
|
|
nsUnicodeToUTF16() { mBOM = 0xFEFF;}
|
|
};
|
|
|
|
#endif /* nsUnicodeToUTF16_h_ */
|