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cata%netscape.com 1999-03-19 01:08:01 +00:00
parent dc7fba4057
commit 53409ef749
2 changed files with 196 additions and 0 deletions
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121
intl/uconv/ucvlatin/nsUTF8ToUnicode.cpp Normal file
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/* -*- 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 "pratom.h"
#include "nsIComponentManager.h"
#include "nsUTF8ToUnicode.h"
#include "nsUCvLatinDll.h"
//----------------------------------------------------------------------
// Class nsUTF8ToUnicode [implementation]
NS_IMPL_ISUPPORTS(nsUTF8ToUnicode, kIUnicodeDecoderIID);
nsUTF8ToUnicode::nsUTF8ToUnicode()
{
NS_INIT_REFCNT();
PR_AtomicIncrement(&g_InstanceCount);
mUtil = nsnull;
mBehavior = kOnError_Recover;
}
nsUTF8ToUnicode::~nsUTF8ToUnicode()
{
NS_IF_RELEASE(mUtil);
PR_AtomicDecrement(&g_InstanceCount);
}
nsresult nsUTF8ToUnicode::CreateInstance(nsISupports ** aResult)
{
*aResult = new nsUTF8ToUnicode();
return (*aResult == NULL)? NS_ERROR_OUT_OF_MEMORY : NS_OK;
}
//----------------------------------------------------------------------
// Interface nsICharsetConverter [implementation]
static PRInt16 gShiftTable[] = {
3, uMultibytesCharset,
ShiftCell(u1ByteChar, 1, 0x00, 0x7F, 0x00, 0x00, 0x00, 0x7F),
ShiftCell(u2BytesUTF8, 2, 0xC0, 0xDF, 0x00, 0x00, 0x07, 0xFF),
ShiftCell(u3BytesUTF8, 3, 0xE0, 0xEF, 0x08, 0x00, 0xFF, 0xFF)
};
static PRUint16 gMappingTable[] = {
0x0001, 0x0004, 0x0005, 0x0008, 0x0000, 0x0000, 0xFFFF, 0x0000
};
// XXX quick hack so I don't have to include nsICharsetConverterManager
extern "C" const nsID kCharsetConverterManagerCID;
NS_IMETHODIMP nsUTF8ToUnicode::Convert(PRUnichar * aDest, PRInt32 aDestOffset,
PRInt32 * aDestLength,
const char * aSrc, PRInt32 aSrcOffset,
PRInt32 * aSrcLength)
{
if (aDest == NULL) return NS_ERROR_NULL_POINTER;
if(nsnull == mUtil)
{
nsresult res = NS_OK;
res = nsComponentManager::CreateInstance(
kCharsetConverterManagerCID,
NULL,
kIUnicodeDecodeUtilIID,
(void**) & mUtil);
if(NS_FAILED(res))
{
*aSrcLength = 0;
*aDestLength = 0;
return res;
}
}
return mUtil->Convert( aDest, aDestOffset, aDestLength,
aSrc, aSrcOffset, aSrcLength,
mBehavior,
(uShiftTable*) &gShiftTable,
(uMappingTable*)&gMappingTable);
}
NS_IMETHODIMP nsUTF8ToUnicode::Finish(PRUnichar * aDest, PRInt32 aDestOffset,
PRInt32 * aDestLength)
{
// it is really only a stateless converter...
*aDestLength = 0;
return NS_OK;
}
NS_IMETHODIMP nsUTF8ToUnicode::Length(const char * aSrc, PRInt32 aSrcOffset,
PRInt32 aSrcLength,
PRInt32 * aDestLength)
{
*aDestLength = aSrcLength;
return NS_OK;
}
NS_IMETHODIMP nsUTF8ToUnicode::Reset()
{
return NS_OK;
}
NS_IMETHODIMP nsUTF8ToUnicode::SetInputErrorBehavior(PRInt32 aBehavior)
{
mBehavior = aBehavior;
return NS_OK;
}

75
intl/uconv/ucvlatin/nsUTF8ToUnicode.h Normal file
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/* -*- 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.
*/
#ifndef nsUTF8ToUnicode_h___
#define nsUTF8ToUnicode_h___
#include "nsIUnicodeDecoder.h"
#include "nsIUnicodeDecodeUtil.h"
//----------------------------------------------------------------------
// Class nsUTF8ToUnicode [declaration]
/**
* A character set converter from UTF8 to Unicode.
*
* @created 18/Mar/1998
* @author Catalin Rotaru [CATA]
*/
class nsUTF8ToUnicode : public nsIUnicodeDecoder
{
NS_DECL_ISUPPORTS
public:
/**
* Class constructor.
*/
nsUTF8ToUnicode();
/**
* Class destructor.
*/
virtual ~nsUTF8ToUnicode();
/**
* Static class constructor.
*/
static nsresult CreateInstance(nsISupports **aResult);
//--------------------------------------------------------------------
// Interface nsIUnicodeDecoder [declaration]
NS_IMETHOD Convert(PRUnichar * aDest, PRInt32 aDestOffset,
PRInt32 * aDestLength,const char * aSrc, PRInt32 aSrcOffset,
PRInt32 * aSrcLength);
NS_IMETHOD Finish(PRUnichar * aDest, PRInt32 aDestOffset,
PRInt32 * aDestLength);
NS_IMETHOD Length(const char * aSrc, PRInt32 aSrcOffset, PRInt32 aSrcLength,
PRInt32 * aDestLength);
NS_IMETHOD Reset();
NS_IMETHOD SetInputErrorBehavior(PRInt32 aBehavior);
private:
PRInt32 mBehavior;
nsIUnicodeDecodeUtil *mUtil;
};
#endif /* nsUTF8ToUnicode_h___ */