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79 lines
2.2 KiB
C++
79 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsUnicodeToUTF7_h___
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#define nsUnicodeToUTF7_h___
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#include "nsUCSupport.h"
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//----------------------------------------------------------------------
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// Class nsBasicUTF7Encoder [declaration]
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/**
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* Basic class for a character set converter from Unicode to UTF-7.
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*
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* @created 03/Jun/1999
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* @author Catalin Rotaru [CATA]
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*/
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class nsBasicUTF7Encoder : public nsEncoderSupport
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{
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public:
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/**
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* Class constructor.
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*/
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nsBasicUTF7Encoder(char aLastChar, char aEscChar);
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protected:
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PRInt32 mEncoding; // current encoding
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PRUint32 mEncBits;
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PRInt32 mEncStep;
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char mLastChar;
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char mEscChar;
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nsresult ShiftEncoding(PRInt32 aEncoding, char * aDest,
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PRInt32 * aDestLength);
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nsresult EncodeDirect(const PRUnichar * aSrc, PRInt32 * aSrcLength,
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char * aDest, PRInt32 * aDestLength);
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nsresult EncodeBase64(const PRUnichar * aSrc, PRInt32 * aSrcLength,
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char * aDest, PRInt32 * aDestLength);
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char ValueToChar(PRUint32 aValue);
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virtual bool DirectEncodable(PRUnichar aChar);
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//--------------------------------------------------------------------
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// Subclassing of nsEncoderSupport class [declaration]
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NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
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char * aDest, PRInt32 * aDestLength);
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NS_IMETHOD FinishNoBuff(char * aDest, PRInt32 * aDestLength);
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NS_IMETHOD Reset();
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};
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//----------------------------------------------------------------------
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// Class nsUnicodeToUTF7 [declaration]
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/**
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* A character set converter from Unicode to UTF-7.
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*
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* @created 03/Jun/1999
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* @author Catalin Rotaru [CATA]
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*/
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class nsUnicodeToUTF7 : public nsBasicUTF7Encoder
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{
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public:
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/**
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* Class constructor.
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*/
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nsUnicodeToUTF7();
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protected:
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virtual bool DirectEncodable(PRUnichar aChar);
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};
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#endif /* nsUnicodeToUTF7_h___ */
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