зеркало из https://github.com/mozilla/pjs.git
84 строки
3.1 KiB
C++
84 строки
3.1 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: NPL 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 Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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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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*
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 NPL, 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsUCS2LEToUnicode.h"
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//----------------------------------------------------------------------
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// Global functions and data [declaration]
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static const PRUint16 g_UCS2LEMappingTable[] = {
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0x0001, 0x0004, 0x0005, 0x0008, 0x0000, 0x0000, 0xFFFF, 0x0000
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};
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static const PRInt16 g_UCS2LEShiftTable[] = {
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0, u2BytesSwapCharset,
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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 nsUCS2LEToUnicode [implementation]
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nsUCS2LEToUnicode::nsUCS2LEToUnicode()
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: nsTableDecoderSupport((uShiftTable*) &g_UCS2LEShiftTable,
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(uMappingTable*) &g_UCS2LEMappingTable)
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{
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}
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nsresult nsUCS2LEToUnicode::CreateInstance(nsISupports ** aResult)
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{
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*aResult = new nsUCS2LEToUnicode();
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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 nsUCS2LEToUnicode::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 % 2))
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{
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*aDestLength = aSrcLength / 2;
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return NS_OK_UENC_EXACTLENGTH;
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} else {
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*aDestLength = (aSrcLength + 1) / 2;
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return NS_OK;
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}
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}
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