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100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is Mozilla Communicator client code.
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*
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsUnicodeToUTF7_h___
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#define nsUnicodeToUTF7_h___
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#include "nsUCvLatinSupport.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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NS_IMETHOD FillInfo(PRUint32 *aInfo);
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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 PRBool 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 GetMaxLength(const PRUnichar * aSrc, PRInt32 aSrcLength,
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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 PRBool DirectEncodable(PRUnichar aChar);
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};
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#endif /* nsUnicodeToUTF7_h___ */
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