зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.2 KiB
C++
68 строки
2.2 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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#include "nsUCS4BEToUnicode.h"
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//----------------------------------------------------------------------
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// Global functions and data [declaration]
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static PRUint16 g_UCS4BEMappingTable[] = {
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0x0001, 0x0004, 0x0005, 0x0008, 0x0000, 0x0000, 0xFFFF, 0x0000
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};
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static PRInt16 g_UCS4BEShiftTable[] = {
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0, u4BytesCharset,
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ShiftCell(0, 0, 0, 0, 0, 0, 0, 0),
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};
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//----------------------------------------------------------------------
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// Class nsUCS4BEToUnicode [implementation]
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nsUCS4BEToUnicode::nsUCS4BEToUnicode()
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: nsTableDecoderSupport((uShiftTable*) &g_UCS4BEShiftTable,
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(uMappingTable*) &g_UCS4BEMappingTable)
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{
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}
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nsresult nsUCS4BEToUnicode::CreateInstance(nsISupports ** aResult)
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{
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*aResult = new nsUCS4BEToUnicode();
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return (*aResult == NULL)? NS_ERROR_OUT_OF_MEMORY : NS_OK;
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}
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//----------------------------------------------------------------------
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// Subclassing of nsTableDecoderSupport class [implementation]
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NS_IMETHODIMP nsUCS4BEToUnicode::GetMaxLength(const char * aSrc,
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PRInt32 aSrcLength,
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PRInt32 * aDestLength)
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{
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if(0 == (aSrcLength % 4))
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{
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*aDestLength = aSrcLength / 4;
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return NS_OK_UENC_EXACTLENGTH;
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} else {
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*aDestLength = (aSrcLength / 4) + 1;
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return NS_OK;
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}
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}
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