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107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/**
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* A character set converter from Unicode to GBK.
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*
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*
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* @created 08/Sept/1999
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* @author Yueheng Xu, Yueheng.Xu@intel.com
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*/
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#ifndef nsUnicodeToGBK_h___
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#define nsUnicodeToGBK_h___
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#include "nsUCSupport.h"
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#include "nsCOMPtr.h"
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#include "nsIUnicodeEncoder.h"
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#include "gbku.h"
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//----------------------------------------------------------------------
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// Class nsUnicodeToGBK [declaration]
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class nsUnicodeToGBK: 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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nsUnicodeToGBK(PRUint32 aMaxLengthFactor = 2);
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virtual ~nsUnicodeToGBK() {}
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protected:
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//--------------------------------------------------------------------
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// Subclassing of nsEncoderSupport class [declaration]
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NS_IMETHOD ConvertNoBuff(const PRUnichar * aSrc,
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PRInt32 * aSrcLength,
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char * aDest,
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PRInt32 * aDestLength);
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NS_IMETHOD ConvertNoBuffNoErr(const PRUnichar * aSrc, PRInt32 * aSrcLength,
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char * aDest, PRInt32 * aDestLength)
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{
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return NS_OK;
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} // just make it not abstract;
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virtual void CreateExtensionEncoder();
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virtual void Create4BytesEncoder();
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nsCOMPtr<nsIUnicodeEncoder> mExtensionEncoder;
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nsCOMPtr<nsIUnicodeEncoder> m4BytesEncoder;
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protected:
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PRUnichar mSurrogateHigh;
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nsGBKConvUtil mUtil;
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bool TryExtensionEncoder(PRUnichar aChar, char* aDest, PRInt32* aOutLen);
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bool Try4BytesEncoder(PRUnichar aChar, char* aDest, PRInt32* aOutLen);
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virtual bool EncodeSurrogate(PRUnichar aSurrogateHigh, PRUnichar aSurrogateLow, char* aDest);
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};
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class nsUnicodeToGB18030: public nsUnicodeToGBK
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{
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public:
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nsUnicodeToGB18030() : nsUnicodeToGBK(4) {}
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virtual ~nsUnicodeToGB18030() {}
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protected:
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virtual void CreateExtensionEncoder();
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virtual void Create4BytesEncoder();
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virtual bool EncodeSurrogate(PRUnichar aSurrogateHigh, PRUnichar aSurrogateLow, char* aDest);
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};
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#endif /* nsUnicodeToGBK_h___ */
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