зеркало из https://github.com/mozilla/gecko-dev.git
301 строка
9.1 KiB
C++
301 строка
9.1 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 License
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* Version 1.0 (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"
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* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
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* the License for the specific language governing rights and limitations
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* 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 Copyright (C) 1998
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* Netscape Communications Corporation. All Rights Reserved.
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*/
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#include "pratom.h"
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#define NS_IMPL_IDS
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#include "nsRepository.h"
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#include "nsIUnicodeDecoder.h"
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#include "nsIUnicodeDecodeUtil.h"
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#include "nsEUCJPToUnicode.h"
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#include "nsICharsetConverterManager.h"
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#include "nsUCVJA2Dll.h"
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#include "nsUCVJA2CID.h"
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//----------------------------------------------------------------------
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// Global functions and data [declaration]
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#define NS_SRC_CHARSET "EUC-JP"
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#define NS_DEST_CHARSET "Unicode"
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//----------------------------------------------------------------------
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// Class nsEUCJPToUnicode [declaration]
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class nsEUCJPToUnicode : public nsIUnicodeDecoder
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{
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NS_DECL_ISUPPORTS
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public:
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/**
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* Class constructor.
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*/
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nsEUCJPToUnicode();
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/**
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* Class destructor.
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*/
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~nsEUCJPToUnicode();
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//--------------------------------------------------------------------
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// Interface nsIUnicodeDecoder [declaration]
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NS_IMETHOD Convert(PRUnichar * aDest, PRInt32 aDestOffset,
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PRInt32 * aDestLength,const char * aSrc, PRInt32 aSrcOffset,
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PRInt32 * aSrcLength);
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NS_IMETHOD Finish(PRUnichar * aDest, PRInt32 aDestOffset,
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PRInt32 * aDestLength);
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NS_IMETHOD Length(const char * aSrc, PRInt32 aSrcOffset, PRInt32 aSrcLength,
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PRInt32 * aDestLength);
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NS_IMETHOD Reset();
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NS_IMETHOD SetInputErrorBehavior(PRInt32 aBehavior);
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private:
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PRInt32 mBehavior;
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nsIUnicodeDecodeUtil *mUtil;
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};
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// Shift Table
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static PRInt16 g0201ShiftTable[] = {
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2, uMultibytesCharset,
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ShiftCell(u1ByteChar, 1, 0x00, 0x7F, 0x00, 0x00, 0x00, 0x7F),
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ShiftCell(u1BytePrefix8EChar, 2, 0x8E, 0x8E, 0x00, 0xA1, 0x00, 0xDF)
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};
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static PRInt16 g0208ShiftTable[] = {
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0, u2BytesGRCharset,
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ShiftCell(0,0,0,0,0,0,0,0)
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};
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static PRInt16 g0212ShiftTable[] = {
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0, u2BytesGRPrefix8EA2Charset,
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ShiftCell(0,0,0,0,0,0,0,0)
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};
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static PRInt16 *gShiftTables[4] = {
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g0208ShiftTable,
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g0201ShiftTable,
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g0201ShiftTable,
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g0212ShiftTable
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};
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// Mapping Table
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// these three are shared with ISO-2022-JP conversion
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extern "C" PRUint16 g0201Mapping[] = {
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#include "jis0201.ut"
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};
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extern "C" PRUint16 g0208Mapping[] = {
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#include "jis0208.ut"
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};
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extern "C" PRUint16 g0212Mapping[] = {
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#include "jis0212.ut"
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};
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static PRUint16 *gMappingTables[4] = {
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g0208Mapping,
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g0201Mapping,
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g0201Mapping,
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g0212Mapping
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};
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static uRange gRanges[] = {
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{ 0xA1, 0xFE },
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{ 0x00, 0x7F },
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{ 0x8E, 0x8E },
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{ 0x8F, 0x8F }
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};
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//----------------------------------------------------------------------
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// Class nsEUCJPToUnicode [implementation]
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NS_IMPL_ISUPPORTS(nsEUCJPToUnicode, kIUnicodeDecoderIID);
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nsEUCJPToUnicode::nsEUCJPToUnicode()
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{
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NS_INIT_REFCNT();
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PR_AtomicIncrement(&g_InstanceCount);
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mUtil = nsnull;
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mBehavior = kOnError_Recover;
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}
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nsEUCJPToUnicode::~nsEUCJPToUnicode()
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{
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NS_IF_RELEASE(mUtil);
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PR_AtomicDecrement(&g_InstanceCount);
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}
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//----------------------------------------------------------------------
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// Interface nsICharsetConverter [implementation]
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NS_IMETHODIMP nsEUCJPToUnicode::Convert(PRUnichar * aDest, PRInt32 aDestOffset,
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PRInt32 * aDestLength,
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const char * aSrc, PRInt32 aSrcOffset,
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PRInt32 * aSrcLength)
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{
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if (aDest == NULL) return NS_ERROR_NULL_POINTER;
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if(nsnull == mUtil)
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{
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nsresult res = NS_OK;
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res = nsRepository::CreateInstance(
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kCharsetConverterManagerCID,
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NULL,
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kIUnicodeDecodeUtilIID,
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(void**) & mUtil);
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if(NS_FAILED(res))
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{
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*aSrcLength = 0;
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*aDestLength = 0;
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return res;
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}
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}
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return mUtil->Convert( aDest, aDestOffset, aDestLength,
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aSrc, aSrcOffset, aSrcLength,
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mBehavior,
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4,
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(uRange*) gRanges,
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(uShiftTable*) gShiftTables,
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(uMappingTable*)gMappingTables);
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}
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NS_IMETHODIMP nsEUCJPToUnicode::Finish(PRUnichar * aDest, PRInt32 aDestOffset,
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PRInt32 * aDestLength)
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{
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// it is really only a stateless converter...
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*aDestLength = 0;
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return NS_OK;
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}
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NS_IMETHODIMP nsEUCJPToUnicode::Length(const char * aSrc, PRInt32 aSrcOffset,
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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 nsEUCJPToUnicode::Reset()
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{
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return NS_OK;
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}
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NS_IMETHODIMP nsEUCJPToUnicode::SetInputErrorBehavior(PRInt32 aBehavior)
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{
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mBehavior = aBehavior;
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return NS_OK;
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}
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//----------------------------------------------------------------------
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// Class nsEUCJPToUnicodeFactory [implementation]
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nsEUCJPToUnicodeFactory::nsEUCJPToUnicodeFactory()
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{
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NS_INIT_REFCNT();
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PR_AtomicIncrement(&g_InstanceCount);
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}
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nsEUCJPToUnicodeFactory::~nsEUCJPToUnicodeFactory()
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{
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PR_AtomicDecrement(&g_InstanceCount);
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}
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//----------------------------------------------------------------------
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// Interface nsISupports [implementation]
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NS_IMPL_ADDREF(nsEUCJPToUnicodeFactory);
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NS_IMPL_RELEASE(nsEUCJPToUnicodeFactory);
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nsresult nsEUCJPToUnicodeFactory::QueryInterface(REFNSIID aIID,
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void** aInstancePtr)
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{
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if (NULL == aInstancePtr) {
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return NS_ERROR_NULL_POINTER;
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}
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*aInstancePtr = NULL;
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static NS_DEFINE_IID(kISupportsIID, NS_ISUPPORTS_IID);
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static NS_DEFINE_IID(kClassIID, kICharsetConverterInfoIID);
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static NS_DEFINE_IID(kIFactoryIID, NS_IFACTORY_IID);
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if (aIID.Equals(kClassIID)) {
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*aInstancePtr = (void*) ((nsICharsetConverterInfo*)this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(kIFactoryIID)) {
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*aInstancePtr = (void*) ((nsIFactory*)this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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if (aIID.Equals(kISupportsIID)) {
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*aInstancePtr = (void*) ((nsISupports*)(nsIFactory*)this);
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NS_ADDREF_THIS();
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return NS_OK;
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}
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return NS_NOINTERFACE;
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}
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//----------------------------------------------------------------------
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// Interface nsIFactory [implementation]
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NS_IMETHODIMP nsEUCJPToUnicodeFactory::CreateInstance(nsISupports *aDelegate,
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const nsIID &aIID,
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void **aResult)
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{
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if (aResult == NULL) return NS_ERROR_NULL_POINTER;
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if (aDelegate != NULL) return NS_ERROR_NO_AGGREGATION;
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nsIUnicodeDecoder * t = new nsEUCJPToUnicode;
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if (t == NULL) return NS_ERROR_OUT_OF_MEMORY;
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nsresult res = t->QueryInterface(aIID, aResult);
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if (NS_FAILED(res)) delete t;
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return res;
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}
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NS_IMETHODIMP nsEUCJPToUnicodeFactory::LockFactory(PRBool aLock)
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{
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if (aLock) PR_AtomicIncrement(&g_LockCount);
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else PR_AtomicDecrement(&g_LockCount);
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return NS_OK;
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}
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//----------------------------------------------------------------------
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// Interface nsICharsetConverterInfo [implementation]
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NS_IMETHODIMP nsEUCJPToUnicodeFactory::GetCharsetSrc(char ** aCharset)
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{
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(*aCharset) = NS_SRC_CHARSET;
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return NS_OK;
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}
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NS_IMETHODIMP nsEUCJPToUnicodeFactory::GetCharsetDest(char ** aCharset)
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{
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(*aCharset) = NS_DEST_CHARSET;
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return NS_OK;
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}
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