/*

* Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description: 

*

*/

// ========== INCLUDE FILES ================================

#include <txtetext.h>               // for CPlainText

#include "MsgAttachmentUtils.h"

// ========== EXTERNAL DATA STRUCTURES =====================

// ========== EXTERNAL FUNCTION PROTOTYPES =================

// ========== CONSTANTS ====================================

// ========== MACROS =======================================

// ========== LOCAL CONSTANTS AND MACROS ===================

// ========== MODULE DATA STRUCTURES =======================

// ========== LOCAL FUNCTION PROTOTYPES ====================

// ========== LOCAL FUNCTIONS ==============================

// ========== MEMBER FUNCTIONS =============================

//----------------------------------------------------------------------------

// from: TBool CImRecvConvert::IsIllegalChar(const TUint aChar)

//----------------------------------------------------------------------------

LOCAL_C TBool IsIllegalChar(const TUint aChar)

    {

    return (

        aChar == '*'  ||

        aChar == '\\' ||

        aChar == '<'  ||

        aChar == '>'  ||

        aChar == ':'  ||

        aChar == '.'  ||

        aChar == '"'  ||

        aChar == '/'  ||

        aChar == '|'  ||

        aChar == '?'  ||

        aChar == CEditableText::EParagraphDelimiter  ||

        aChar == CEditableText::ELineBreak  ||

        aChar <  ' ' );

    }

// ---------------------------------------------------------

// MsgAttachmentUtils::GetFileNameFromBuffer

//

//

// ---------------------------------------------------------

//

void MsgAttachmentUtils::GetFileNameFromBuffer(

    TFileName& aFileName,

    const TDesC& aBuffer,

    TInt aMaxLength,

    const TDesC* aExt /*= NULL*/ )

    {

    if ( aExt != NULL )

        {

        aMaxLength -= aExt->Length();

        }

    TInt len = aBuffer.Length();

    TInt max = Min( len, aMaxLength );

//    __ASSERT_DEBUG( max > 0, Panic( EMsgZeroLength ) );

    aFileName.Zero();

    TInt cc = 0;

    TUint ch;

    TUint ch1 = 0;

    TBool spaces = EFalse;

    for ( TInt i = 0; i < len && cc < max; ++i )

        {

        ch = aBuffer[i];

        // ignore spaces from beginning of the buffer until first

        // non-space is encountered.

        if ( !spaces && ch != ' ' )

            {

            spaces = ETrue;

            }

        if ( i > 0 )

            {

            ch1 = aBuffer[i - 1];

            }

        // strip illegal chars away.

        // checks also if previous and current chars are '.'

        if ( spaces && ! IsIllegalChar( ch ) )

            {

            if ( !( i > 0 && ch == '.' && ch1 == '.' ) )

                {

                aFileName.Append( ch );

                cc++;

                }

            }

        }

    aFileName.Trim();

    // If filename is empty at this point, do not append extension either.

    // Instead, empty filename is returned so that caller can use whatever

    // default s/he has for it.

    if ( aFileName.Length() > 0 && aExt != NULL )

        {

        aFileName.Append( *aExt );

        }

    }

// End of File