mirror of
https://github.com/rn10950/RetroZilla.git
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103 lines
3.6 KiB
C++
103 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 Communicator client 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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* Yueheng Xu, yueheng.xu@intel.com
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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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#include "nsICharRepresentable.h"
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#include "nsUnicodeToGB2312GL.h"
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#include "nsUCvCnDll.h"
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#include "gbku.h"
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//----------------------------------------------------------------------
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// Class nsUnicodeToGB2312GL [implementation]
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nsUnicodeToGB2312GL::nsUnicodeToGB2312GL() :
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nsEncoderSupport(2)
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{
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mUtil.InitToGBKTable();
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}
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NS_IMETHODIMP nsUnicodeToGB2312GL::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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{
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PRInt32 iSrcLength = 0;
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PRInt32 iDestLength = 0;
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nsresult res = NS_OK;
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while( iSrcLength < *aSrcLength)
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{
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char byte1, byte2;
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if(mUtil.UnicodeToGBKChar(*aSrc, PR_TRUE, &byte1,&byte2))
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{
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if(iDestLength+2 > *aDestLength)
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{
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res = NS_OK_UENC_MOREOUTPUT;
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break;
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}
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aDest[0]=byte1;
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aDest[1]=byte2;
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aDest += 2; // increment 2 bytes
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iDestLength +=2; // Dest Length in units of chars, each GB char counts as two in string length
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} else {
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// cannot map
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res = NS_ERROR_UENC_NOMAPPING;
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break;
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}
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iSrcLength++ ; // Each unicode char just count as one in PRUnichar string;
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aSrc++;
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// if dest buffer not big enough, handles it here.
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if ( (iDestLength >= *aDestLength) && ( iSrcLength < *aSrcLength) )
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{
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res = NS_OK_UENC_MOREOUTPUT;
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break;
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}
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}
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*aDestLength = iDestLength;
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*aSrcLength = iSrcLength;
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return res;
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}
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//----------------------------------------------------------------------
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// Subclassing of nsTableEncoderSupport class [implementation]
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NS_IMETHODIMP nsUnicodeToGB2312GL::FillInfo(PRUint32 *aInfo)
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{
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mUtil.FillGB2312Info(aInfo);
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return NS_OK;
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}
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