pjs/intl/uconv/ucvcn/nsUnicodeToGB2312.cpp

60 строки
2.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
#include "nsUnicodeToGB2312.h"
//----------------------------------------------------------------------
// Global functions and data [declaration]
static PRUint16 g_GB2312MappingTable[] = {
#include "gb2312.uf"
};
static PRInt16 g_GB2312ShiftTable[] = {
2, uMultibytesCharset,
ShiftCell(u1ByteChar, 1, 0x00, 0x7F, 0x00, 0x00, 0x00, 0x7F),
ShiftCell(u2BytesChar, 2, 0xA1, 0xFE, 0xA1, 0x40, 0xFE, 0xFE)
};
//----------------------------------------------------------------------
// Class nsUnicodeToGB2312 [implementation]
nsUnicodeToGB2312::nsUnicodeToGB2312()
: nsTableEncoderSupport((uShiftTable*) &g_GB2312ShiftTable,
(uMappingTable*) &g_GB2312MappingTable)
{
}
nsresult nsUnicodeToGB2312::CreateInstance(nsISupports ** aResult)
{
*aResult = new nsUnicodeToGB2312();
return (*aResult == NULL)? NS_ERROR_OUT_OF_MEMORY : NS_OK;
}
//----------------------------------------------------------------------
// Subclassing of nsTableEncoderSupport class [implementation]
NS_IMETHODIMP nsUnicodeToGB2312::GetMaxLength(const PRUnichar * aSrc,
PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
*aDestLength = aSrcLength;
return NS_OK_UENC_EXACTLENGTH;
}