1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  TARM character conversion methods

    15 *

    16 */

    17 

    18 

    19 #include "TARMCharConv.h"

    20 

    21 #include <utf.h>

    22 

    23 CTARMCharConv::CTARMCharConv()

    24 	{

    25 	

    26 	}

    27 

    28 // ------------------------------------------------------------------------------------------------

    29 // TInt CTARMCharConv::ConvertToUtf8LC

    30 // Encodes from Unicode UCS-2 to UTF-8

    31 // ------------------------------------------------------------------------------------------------

    32 NSMLDMURI_EXPORT_C HBufC8* CTARMCharConv::ConvertToUtf8LC(const TDesC16& aText)

    33     {

    34     TPtrC16    remainder( aText );

    35     TBuf8<20>  utfBuffer;

    36     HBufC8     *ret    = 0;

    37     CBufFlat   *buffer = CBufFlat::NewL( 128 );

    38     CleanupStack::PushL( buffer );

    39 

    40     TBool finish = EFalse;

    41     while( !finish )

    42         {

    43         utfBuffer.Zero();

    44         TInt unconverted = CnvUtfConverter::ConvertFromUnicodeToUtf8( utfBuffer, remainder );

    45         if( unconverted >= 0 )

    46             {

    47             remainder.Set( remainder.Right( unconverted ) );

    48             buffer->InsertL( buffer->Size(), utfBuffer );

    49             finish = (unconverted == 0);

    50             }

    51         else

    52             {

    53             User::Leave( unconverted );

    54             }

    55         }

    56 

    57     buffer->Compress();

    58     ret = buffer->Ptr( 0 ).Alloc();

    59     CleanupStack::PopAndDestroy( buffer );

    60     CleanupStack::PushL( ret );

    61     return ret;

    62     }

    63 

    64 

    65 // ------------------------------------------------------------------------------------------------

    66 // TInt CTARMCharConv::ConvertFromUtf8LC

    67 // Decodes from UTF-8 to Unicode UCS-2

    68 // ------------------------------------------------------------------------------------------------

    69 NSMLDMURI_EXPORT_C HBufC16* CTARMCharConv::ConvertFromUtf8LC(const TDesC8& aText)

    70     {

    71     TPtrC8     remainder( aText );

    72     TBuf16<20> unicodeBuffer;

    73     HBufC16    *ret    = 0;

    74     CBufFlat   *buffer = CBufFlat::NewL( 128 );

    75     CleanupStack::PushL( buffer );

    76 

    77     TBool finish = EFalse;

    78     while( !finish )

    79         {

    80         unicodeBuffer.Zero();

    81         TInt unconverted = CnvUtfConverter::ConvertToUnicodeFromUtf8( unicodeBuffer, remainder );

    82         if( unconverted >= 0 )

    83             {

    84             remainder.Set( remainder.Right( unconverted ) );

    85             TPtrC8 ptr( reinterpret_cast<const unsigned char*>(unicodeBuffer.Ptr()), unicodeBuffer.Length()*2 );

    86             buffer->InsertL( buffer->Size(), ptr );

    87             finish = (unconverted == 0);

    88             }

    89         else

    90             {

    91             User::Leave( unconverted );

    92             }

    93         }

    94 

    95     buffer->Compress();

    96     TPtrC16 ptr16( reinterpret_cast<const unsigned short*>(buffer->Ptr( 0 ).Ptr()), buffer->Size() / 2 );

    97     ret = ptr16.Alloc();

    98     CleanupStack::PopAndDestroy( buffer );

    99     CleanupStack::PushL( ret );

   100     return ret;

   101     }

   102 

   103 // End of file