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86 lines
2.8 KiB
C++
86 lines
2.8 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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// =======================================================================
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// Original Author: Yueheng Xu
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// email: yueheng.xu@intel.com
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// phone: (503)264-2248
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// Intel Corporation, Oregon, USA
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// Last Update: September 7, 1999
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// Revision History:
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// 09/07/1999 - initial version. Based on exisiting nsGB2312ToUnicode.cpp. Removed
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// dependecy on those shift/map tables. Now we only depend on gbku.h.
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// 09/28/1999 - changed to use the same table and code as GBKToUnicode converter
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// ======================================================================================
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#if 0
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#include "nsGB2312ToUnicodeV2.h"
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#include "nsUCvCnDll.h"
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#include "gbku.h"
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//----------------------------------------------------------------------
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// Class nsGB2312ToUnicodeV2 [implementation]
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//----------------------------------------------------------------------
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// Subclassing of nsTablesDecoderSupport class [implementation]
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NS_IMETHODIMP nsGB2312ToUnicodeV2::GetMaxLength(const char * aSrc,
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PRInt32 aSrcLength,
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PRInt32 * aDestLength)
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{
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*aDestLength = aSrcLength;
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return NS_OK;
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}
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NS_IMETHODIMP nsGB2312ToUnicodeV2::ConvertNoBuff(const char* aSrc,
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PRInt32 * aSrcLength,
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PRUnichar *aDest,
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PRInt32 * aDestLength)
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{
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PRInt32 i=0;
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PRInt32 iSrcLength = (*aSrcLength);
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PRInt32 iDestlen = 0;
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nsresult rv = NS_OK;
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for (i=0;i<iSrcLength;i++)
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{
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if ( iDestlen >= (*aDestLength) )
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{
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rv = NS_OK_UDEC_MOREOUTPUT;
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break;
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}
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if(UINT8_IN_RANGE(0xa1, *aSrc, 0xfe))
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{
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if(i+1 >= iSrcLength)
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{
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rv = NS_OK_UDEC_MOREINPUT;
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break;
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}
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// To make sure, the second byte has to be checked as well
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// The valid 2nd byte range: [0xA1,0xFE]
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if(UINT8_IN_RANGE(0xa1, aSrc[1], 0xfe))
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{
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// Valid GB 2312 code point
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*aDest = mUtil.GBKCharToUnicode(aSrc[0], aSrc[1]);
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aSrc += 2;
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i++;
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} else {
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// Invalid GB 2312 code point
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*aDest = UCS2_NO_MAPPING;
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aSrc++;
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}
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} else {
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if(IS_ASCII(*aSrc))
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{
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// The source is an ASCII
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*aDest = CAST_CHAR_TO_UNICHAR(*aSrc);
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} else {
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*aDest = UCS2_NO_MAPPING;
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}
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aSrc++;
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}
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iDestlen++;
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aDest++;
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*aSrcLength = i+1;
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}
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*aDestLength = iDestlen;
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return rv;
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}
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#endif
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