gecko/intl/uconv/ucvlatin/nsUnicodeToUTF7.h
2012-05-21 12:12:37 +01:00

79 lines
2.2 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 nsUnicodeToUTF7_h___
#define nsUnicodeToUTF7_h___
#include "nsUCSupport.h"
//----------------------------------------------------------------------
// Class nsBasicUTF7Encoder [declaration]
/**
* Basic class for a character set converter from Unicode to UTF-7.
*
* @created 03/Jun/1999
* @author Catalin Rotaru [CATA]
*/
class nsBasicUTF7Encoder : public nsEncoderSupport
{
public:
/**
* Class constructor.
*/
nsBasicUTF7Encoder(char aLastChar, char aEscChar);
protected:
PRInt32 mEncoding; // current encoding
PRUint32 mEncBits;
PRInt32 mEncStep;
char mLastChar;
char mEscChar;
nsresult ShiftEncoding(PRInt32 aEncoding, char * aDest,
PRInt32 * aDestLength);
nsresult EncodeDirect(const PRUnichar * aSrc, PRInt32 * aSrcLength,
char * aDest, PRInt32 * aDestLength);
nsresult EncodeBase64(const PRUnichar * aSrc, PRInt32 * aSrcLength,
char * aDest, PRInt32 * aDestLength);
char ValueToChar(PRUint32 aValue);
virtual bool DirectEncodable(PRUnichar aChar);
//--------------------------------------------------------------------
// Subclassing of nsEncoderSupport class [declaration]
NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
char * aDest, PRInt32 * aDestLength);
NS_IMETHOD FinishNoBuff(char * aDest, PRInt32 * aDestLength);
NS_IMETHOD Reset();
};
//----------------------------------------------------------------------
// Class nsUnicodeToUTF7 [declaration]
/**
* A character set converter from Unicode to UTF-7.
*
* @created 03/Jun/1999
* @author Catalin Rotaru [CATA]
*/
class nsUnicodeToUTF7 : public nsBasicUTF7Encoder
{
public:
/**
* Class constructor.
*/
nsUnicodeToUTF7();
protected:
virtual bool DirectEncodable(PRUnichar aChar);
};
#endif /* nsUnicodeToUTF7_h___ */