libreoffice/basic/source/sbx/sbxstr.cxx

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 * Copyright 2000, 2010 Oracle and/or its affiliates.
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_basic.hxx"
#include <tools/errcode.hxx>
#include <basic/sbx.hxx>
#include "sbxconv.hxx"
#include "sbxres.hxx"
#include "runtime.hxx"
#ifndef _RTL_USTRBUF_HXX_
#include <rtl/ustrbuf.hxx>
#endif
// AB 29.10.99 Unicode
#ifndef _USE_NO_NAMESPACE
using namespace rtl;
#endif


// Die Konversion eines Items auf String wird ueber die Put-Methoden
// der einzelnen Datentypen abgewickelt, um doppelten Code zu vermeiden.

XubString ImpGetString( const SbxValues* p )
{
    SbxValues aTmp;
    XubString aRes;
    aTmp.eType = SbxSTRING;
    aTmp.pString = &aRes;
    switch( +p->eType )
    {
        case SbxNULL:
            SbxBase::SetError( SbxERR_CONVERSION );
        case SbxEMPTY:
            break;
        case SbxCHAR:
            ImpPutChar( &aTmp, p->nChar ); break;
        case SbxBYTE:
            ImpPutByte( &aTmp, p->nByte ); break;
        case SbxINTEGER:
            ImpPutInteger( &aTmp, p->nInteger ); break;
        case SbxBOOL:
            ImpPutBool( &aTmp, p->nUShort ); break;
        case SbxUSHORT:
            ImpPutUShort( &aTmp, p->nUShort ); break;
        case SbxLONG:
            ImpPutLong( &aTmp, p->nLong ); break;
        case SbxULONG:
            ImpPutULong( &aTmp, p->nULong ); break;
        case SbxSINGLE:
            ImpPutSingle( &aTmp, p->nSingle ); break;
        case SbxDOUBLE:
            ImpPutDouble( &aTmp, p->nDouble ); break;
        case SbxCURRENCY:
            ImpPutCurrency( &aTmp, p->nLong64 ); break;
        case SbxDECIMAL:
        case SbxBYREF | SbxDECIMAL:
            ImpPutDecimal( &aTmp, p->pDecimal ); break;
        case SbxSALINT64:
            ImpPutInt64( &aTmp, p->nInt64 ); break;
        case SbxSALUINT64:
            ImpPutUInt64( &aTmp, p->uInt64 ); break;
        case SbxBYREF | SbxSTRING:
        case SbxSTRING:
        case SbxLPSTR:
            if( p->pString )
                aRes = *p->pString;
            break;
        case SbxOBJECT:
        {
            SbxValue* pVal = PTR_CAST(SbxValue,p->pObj);
            if( pVal )
                aRes = pVal->GetString();
            else if( p->pObj && p->pObj->IsFixed()
                    && (p->pObj->GetType() == (SbxARRAY | SbxBYTE )) )
            {
                // convert byte array to string
                SbxArray* pArr = PTR_CAST(SbxArray, p->pObj);
                if( pArr )
                    aRes = ByteArrayToString( pArr );
            }
            else
                SbxBase::SetError( SbxERR_NO_OBJECT );
            break;
        }
        case SbxERROR:
            // Hier wird der String "Error n" erzeugt
            aRes = SbxRes( STRING_ERRORMSG );
            aRes += p->nUShort; break;
        case SbxDATE:
            ImpPutDate( &aTmp, p->nDouble ); break;

        case SbxBYREF | SbxCHAR:
            ImpPutChar( &aTmp, *p->pChar ); break;
        case SbxBYREF | SbxBYTE:
            ImpPutByte( &aTmp, *p->pByte ); break;
        case SbxBYREF | SbxINTEGER:
        case SbxBYREF | SbxBOOL:
            ImpPutInteger( &aTmp, *p->pInteger ); break;
        case SbxBYREF | SbxLONG:
            ImpPutLong( &aTmp, *p->pLong ); break;
        case SbxBYREF | SbxULONG:
            ImpPutULong( &aTmp, *p->pULong ); break;
        case SbxBYREF | SbxERROR:
        case SbxBYREF | SbxUSHORT:
            ImpPutUShort( &aTmp, *p->pUShort ); break;
        case SbxBYREF | SbxSINGLE:
            ImpPutSingle( &aTmp, *p->pSingle ); break;
        case SbxBYREF | SbxDATE:
        case SbxBYREF | SbxDOUBLE:
            ImpPutDouble( &aTmp, *p->pDouble ); break;
        case SbxBYREF | SbxCURRENCY:
            ImpPutCurrency( &aTmp, *p->pLong64 ); break;
        case SbxBYREF | SbxSALINT64:
            ImpPutInt64( &aTmp, *p->pnInt64 ); break;
        case SbxBYREF | SbxSALUINT64:
            ImpPutUInt64( &aTmp, *p->puInt64 ); break;
        default:
            SbxBase::SetError( SbxERR_CONVERSION );
    }
    return aRes;
}

// AB 10.4.97, neue Funktion fuer SbxValue::GetCoreString()
XubString ImpGetCoreString( const SbxValues* p )
{
    // Vorerst nur fuer double
    if( ( p->eType & (~SbxBYREF) ) == SbxDOUBLE )
    {
        SbxValues aTmp;
        XubString aRes;
        aTmp.eType = SbxSTRING;
        aTmp.pString = &aRes;
        if( p->eType == SbxDOUBLE )
            ImpPutDouble( &aTmp, p->nDouble, /*bCoreString=*/TRUE );
        else
            ImpPutDouble( &aTmp, *p->pDouble, /*bCoreString=*/TRUE );
        return aRes;
    }
    else
        return ImpGetString( p );
}

void ImpPutString( SbxValues* p, const XubString* n )
{
    SbxValues aTmp;
    aTmp.eType = SbxSTRING;
    XubString* pTmp = NULL;
    // Sicherheitshalber, falls ein NULL-Ptr kommt
    if( !n )
        n = pTmp = new XubString;
    aTmp.pString = (XubString*) n;
    switch( +p->eType )
    {
        case SbxCHAR:
            p->nChar = ImpGetChar( &aTmp ); break;
        case SbxBYTE:
            p->nByte = ImpGetByte( &aTmp ); break;
        case SbxINTEGER:
        case SbxBOOL:
            p->nInteger = ImpGetInteger( &aTmp ); break;
        case SbxLONG:
            p->nLong = ImpGetLong( &aTmp ); break;
        case SbxULONG:
            p->nULong = ImpGetULong( &aTmp ); break;
        case SbxERROR:
        case SbxUSHORT:
            p->nUShort = ImpGetUShort( &aTmp ); break;
        case SbxSINGLE:
            p->nSingle = ImpGetSingle( &aTmp ); break;
        case SbxDATE:
            p->nDouble = ImpGetDate( &aTmp ); break;
        case SbxDOUBLE:
            p->nDouble = ImpGetDouble( &aTmp ); break;
        case SbxULONG64:
            p->nLong64 = ImpGetCurrency( &aTmp ); break;
        case SbxDECIMAL:
        case SbxBYREF | SbxDECIMAL:
            releaseDecimalPtr( p->pDecimal );
            p->pDecimal = ImpGetDecimal( &aTmp ); break;
        case SbxSALINT64:
            p->nInt64 = ImpGetInt64( &aTmp ); break;
        case SbxSALUINT64:
            p->uInt64 = ImpGetUInt64( &aTmp ); break;

        case SbxBYREF | SbxSTRING:
        case SbxSTRING:
        case SbxLPSTR:
            if( n->Len() )
            {
                if( !p->pString )
                    p->pString = new XubString;
                *p->pString = *n;
            }
            else
                delete p->pString, p->pString = NULL;
            break;
        case SbxOBJECT:
        {
            SbxValue* pVal = PTR_CAST(SbxValue,p->pObj);
            if( pVal )
                pVal->PutString( *n );
            else
                SbxBase::SetError( SbxERR_NO_OBJECT );
            break;
        }
        case SbxBYREF | SbxCHAR:
            *p->pChar = ImpGetChar( p ); break;
        case SbxBYREF | SbxBYTE:
            *p->pByte = ImpGetByte( p ); break;
        case SbxBYREF | SbxINTEGER:
            *p->pInteger = ImpGetInteger( p ); break;
        case SbxBYREF | SbxBOOL:
            *p->pUShort = sal::static_int_cast< UINT16 >( ImpGetBool( p ) );
            break;
        case SbxBYREF | SbxERROR:
        case SbxBYREF | SbxUSHORT:
            *p->pUShort = ImpGetUShort( p ); break;
        case SbxBYREF | SbxLONG:
            *p->pLong = ImpGetLong( p ); break;
        case SbxBYREF | SbxULONG:
            *p->pULong = ImpGetULong( p ); break;
        case SbxBYREF | SbxSINGLE:
            *p->pSingle = ImpGetSingle( p ); break;
        case SbxBYREF | SbxDATE:
            *p->pDouble = ImpGetDate( p ); break;
        case SbxBYREF | SbxDOUBLE:
            *p->pDouble = ImpGetDouble( p ); break;
        case SbxBYREF | SbxCURRENCY:
            *p->pLong64 = ImpGetCurrency( p ); break;
        default:
            SbxBase::SetError( SbxERR_CONVERSION );
    }
    delete pTmp;
}

// Convert string to an array of bytes, preserving unicode (2bytes per character)
SbxArray* StringToByteArray(const String& rStr)
{
    USHORT nArraySize = rStr.Len() * 2;
    const sal_Unicode* pSrc = rStr.GetBuffer();
    SbxDimArray* pArray = new SbxDimArray(SbxBYTE);
    bool bIncIndex = ( IsBaseIndexOne() && SbiRuntime::isVBAEnabled() );
    if( nArraySize )
    {
        if( bIncIndex )
            pArray->AddDim( 1, nArraySize );
        else
            pArray->AddDim( 0, nArraySize-1 );
    }
    else
    {
        pArray->unoAddDim( 0, -1 );
    }

    for( USHORT i=0; i< nArraySize; i++)
    {
        SbxVariable* pNew = new SbxVariable( SbxBYTE );
        BYTE aByte = static_cast< BYTE >( i%2 ? ((*pSrc) >> 8) & 0xff : (*pSrc) & 0xff );
        pNew->PutByte( aByte );
        pNew->SetFlag( SBX_WRITE );
        pArray->Put( pNew, i );
        if( i%2 )
            pSrc++;
    }
    return pArray;
}

// Convert an array of bytes to string (2bytes per character)
String ByteArrayToString(SbxArray* pArr)
{
    USHORT nCount = pArr->Count();
    OUStringBuffer aStrBuf;
    sal_Unicode aChar = 0;
    for( USHORT i = 0 ; i < nCount ; i++ )
    {
        sal_Unicode aTempChar = pArr->Get(i)->GetByte();
        if( i%2 )
        {
            aChar = (aTempChar << 8 ) | aChar;
            aStrBuf.append(aChar);
            aChar = 0;
        }
        else
        {
            aChar = aTempChar;
        }
    }

    if( nCount%2 )
    {
        aStrBuf.append(aChar);
    }

    String aStr(aStrBuf.makeStringAndClear());

    return aStr;
}