Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 842 insertions, 0 deletions

diff --git a/basic/source/runtime/iosys.cxx b/basic/source/runtime/iosys.cxx
new file mode 100644
index 000000000..705905acf
--- /dev/null
+++ b/basic/source/runtime/iosys.cxx
@@ -0,0 +1,842 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <string.h>
+#include <vcl/svapp.hxx>
+#include <vcl/weld.hxx>
+#include <osl/file.hxx>
+
+#include <runtime.hxx>
+
+#include <rtl/strbuf.hxx>
+#include <sal/log.hxx>
+
+#include <comphelper/processfactory.hxx>
+#include <comphelper/string.hxx>
+
+#include <com/sun/star/uno/Sequence.hxx>
+#include <com/sun/star/ucb/SimpleFileAccess.hpp>
+#include <com/sun/star/ucb/UniversalContentBroker.hpp>
+#include <com/sun/star/io/XInputStream.hpp>
+#include <com/sun/star/io/XOutputStream.hpp>
+#include <com/sun/star/io/XStream.hpp>
+#include <com/sun/star/io/XSeekable.hpp>
+
+using namespace com::sun::star::uno;
+using namespace com::sun::star::lang;
+using namespace com::sun::star::ucb;
+using namespace com::sun::star::io;
+using namespace com::sun::star::bridge;
+
+#include <iosys.hxx>
+
+namespace {
+
+class SbiInputDialog : public weld::GenericDialogController
+{
+    std::unique_ptr<weld::Entry> m_xInput;
+    std::unique_ptr<weld::Button> m_xOk;
+    std::unique_ptr<weld::Button> m_xCancel;
+    std::unique_ptr<weld::Label> m_xPromptText;
+    OUString m_aText;
+    DECL_LINK(Ok, weld::Button&, void);
+    DECL_LINK(Cancel, weld::Button&, void);
+public:
+    SbiInputDialog(weld::Window*, const OUString&);
+    const OUString& GetInput() const { return m_aText; }
+};
+
+}
+
+SbiInputDialog::SbiInputDialog(weld::Window* pParent, const OUString& rPrompt)
+    : GenericDialogController(pParent, "svt/ui/inputbox.ui", "InputBox")
+    , m_xInput(m_xBuilder->weld_entry("entry"))
+    , m_xOk(m_xBuilder->weld_button("ok"))
+    , m_xCancel(m_xBuilder->weld_button("cancel"))
+    , m_xPromptText(m_xBuilder->weld_label("prompt"))
+{
+    m_xDialog->set_title(rPrompt);
+    m_xPromptText->set_label(rPrompt);
+    m_xOk->connect_clicked( LINK( this, SbiInputDialog, Ok ) );
+    m_xCancel->connect_clicked( LINK( this, SbiInputDialog, Cancel ) );
+}
+
+IMPL_LINK_NOARG( SbiInputDialog, Ok, weld::Button&, void )
+{
+    m_aText = m_xInput->get_text();
+    m_xDialog->response(RET_OK);
+}
+
+IMPL_LINK_NOARG( SbiInputDialog, Cancel, weld::Button&, void )
+{
+    m_xDialog->response(RET_CANCEL);
+}
+
+SbiStream::SbiStream()
+    : nExpandOnWriteTo(0)
+    , nLine(0)
+    , nLen(0)
+    , nMode(SbiStreamFlags::NONE)
+    , nError(0)
+{
+}
+
+SbiStream::~SbiStream()
+{
+}
+
+// map an SvStream-error to StarBASIC-code
+
+void SbiStream::MapError()
+{
+    if( !pStrm )
+        return;
+
+    ErrCode nEC = pStrm->GetError();
+    if (nEC == ERRCODE_NONE)
+        nError = ERRCODE_NONE;
+    else if (nEC == SVSTREAM_FILE_NOT_FOUND)
+        nError = ERRCODE_BASIC_FILE_NOT_FOUND;
+    else if (nEC ==SVSTREAM_PATH_NOT_FOUND)
+        nError = ERRCODE_BASIC_PATH_NOT_FOUND;
+    else if (nEC ==SVSTREAM_TOO_MANY_OPEN_FILES)
+        nError = ERRCODE_BASIC_TOO_MANY_FILES;
+    else if (nEC ==SVSTREAM_ACCESS_DENIED)
+        nError = ERRCODE_BASIC_ACCESS_DENIED;
+    else if (nEC ==SVSTREAM_INVALID_PARAMETER)
+        nError = ERRCODE_BASIC_BAD_ARGUMENT;
+    else if (nEC ==SVSTREAM_OUTOFMEMORY)
+        nError = ERRCODE_BASIC_NO_MEMORY;
+    else
+        nError = ERRCODE_BASIC_IO_ERROR;
+}
+
+// Returns sal_True if UNO is available, otherwise the old file
+// system implementation has to be used
+// #89378 New semantic: Don't just ask for UNO but for UCB
+bool hasUno()
+{
+    static const bool bRetVal = [] {
+        Reference< XComponentContext > xContext = comphelper::getProcessComponentContext();
+        if( !xContext.is() )
+        {
+            // No service manager at all
+            return false;
+        }
+        else
+        {
+            Reference< XUniversalContentBroker > xManager = UniversalContentBroker::create(xContext);
+
+            if ( !( xManager->queryContentProvider( "file:///" ).is() ) )
+            {
+                // No UCB
+                return false;
+            }
+        }
+        return true;
+    }();
+    return bRetVal;
+}
+
+namespace {
+
+class OslStream : public SvStream
+{
+    osl::File maFile;
+
+public:
+                        OslStream( const OUString& rName, StreamMode nStrmMode );
+                       virtual ~OslStream() override;
+    virtual std::size_t GetData(void* pData, std::size_t nSize) override;
+    virtual std::size_t PutData(const void* pData, std::size_t nSize) override;
+    virtual sal_uInt64 SeekPos( sal_uInt64 nPos ) override;
+    virtual void        FlushData() override;
+    virtual void        SetSize( sal_uInt64 nSize) override;
+};
+
+}
+
+OslStream::OslStream( const OUString& rName, StreamMode nStrmMode )
+    : maFile( rName )
+{
+    sal_uInt32 nFlags;
+
+    if( (nStrmMode & (StreamMode::READ | StreamMode::WRITE)) == (StreamMode::READ | StreamMode::WRITE) )
+    {
+        nFlags = osl_File_OpenFlag_Read | osl_File_OpenFlag_Write;
+    }
+    else if( nStrmMode & StreamMode::WRITE )
+    {
+        nFlags = osl_File_OpenFlag_Write;
+    }
+    else //if( nStrmMode & StreamMode::READ )
+    {
+        nFlags = osl_File_OpenFlag_Read;
+    }
+
+    osl::FileBase::RC nRet = maFile.open( nFlags );
+    if( nRet == osl::FileBase::E_NOENT && nFlags != osl_File_OpenFlag_Read )
+    {
+        nFlags |= osl_File_OpenFlag_Create;
+        nRet = maFile.open( nFlags );
+    }
+
+    if( nRet != osl::FileBase::E_None )
+    {
+        SetError( ERRCODE_IO_GENERAL );
+    }
+}
+
+
+OslStream::~OslStream()
+{
+    maFile.close();
+}
+
+std::size_t OslStream::GetData(void* pData, std::size_t nSize)
+{
+    sal_uInt64 nBytesRead = nSize;
+    maFile.read( pData, nBytesRead, nBytesRead );
+    return nBytesRead;
+}
+
+std::size_t OslStream::PutData(const void* pData, std::size_t nSize)
+{
+    sal_uInt64 nBytesWritten;
+    maFile.write( pData, nSize, nBytesWritten );
+    return nBytesWritten;
+}
+
+sal_uInt64 OslStream::SeekPos( sal_uInt64 nPos )
+{
+    ::osl::FileBase::RC rc = ::osl::FileBase::E_None;
+    // check if a truncated STREAM_SEEK_TO_END was passed
+    assert(nPos != SAL_MAX_UINT32);
+    if( nPos == STREAM_SEEK_TO_END )
+    {
+        rc = maFile.setPos( osl_Pos_End, 0 );
+    }
+    else
+    {
+        rc = maFile.setPos( osl_Pos_Absolut, nPos );
+    }
+    OSL_VERIFY(rc == ::osl::FileBase::E_None);
+    sal_uInt64 nRealPos(0);
+    rc = maFile.getPos( nRealPos );
+    OSL_VERIFY(rc == ::osl::FileBase::E_None);
+    return nRealPos;
+}
+
+void OslStream::FlushData()
+{
+}
+
+void OslStream::SetSize( sal_uInt64 nSize )
+{
+    maFile.setSize( nSize );
+}
+
+namespace {
+
+class UCBStream : public SvStream
+{
+    Reference< XInputStream >   xIS;
+    Reference< XStream >        xS;
+    Reference< XSeekable >      xSeek;
+public:
+    explicit UCBStream( Reference< XInputStream > const & xIS );
+    explicit UCBStream( Reference< XStream > const & xS );
+                       virtual ~UCBStream() override;
+    virtual std::size_t GetData( void* pData, std::size_t nSize ) override;
+    virtual std::size_t PutData( const void* pData, std::size_t nSize ) override;
+    virtual sal_uInt64 SeekPos( sal_uInt64 nPos ) override;
+    virtual void        FlushData() override;
+    virtual void        SetSize( sal_uInt64 nSize ) override;
+};
+
+}
+
+UCBStream::UCBStream( Reference< XInputStream > const & rStm )
+    : xIS( rStm )
+    , xSeek( rStm, UNO_QUERY )
+{
+}
+
+UCBStream::UCBStream( Reference< XStream > const & rStm )
+    : xS( rStm )
+    , xSeek( rStm, UNO_QUERY )
+{
+}
+
+
+UCBStream::~UCBStream()
+{
+    try
+    {
+        if( xIS.is() )
+        {
+            xIS->closeInput();
+        }
+        else if( xS.is() )
+        {
+            Reference< XInputStream > xIS_ = xS->getInputStream();
+            if( xIS_.is() )
+            {
+                xIS_->closeInput();
+            }
+        }
+    }
+    catch(const Exception & )
+    {
+        SetError( ERRCODE_IO_GENERAL );
+    }
+}
+
+std::size_t UCBStream::GetData(void* pData, std::size_t nSize)
+{
+    try
+    {
+        Reference< XInputStream > xISFromS;
+        if( xIS.is() )
+        {
+            Sequence<sal_Int8> aData;
+            nSize = xIS->readBytes( aData, nSize );
+            memcpy( pData, aData.getConstArray(), nSize );
+            return nSize;
+        }
+        else if( xS.is() && (xISFromS = xS->getInputStream()).is() )
+        {
+            Sequence<sal_Int8> aData;
+            nSize = xISFromS->readBytes( aData, nSize );
+            memcpy(pData, aData.getConstArray(), nSize );
+            return nSize;
+        }
+        else
+        {
+            SetError( ERRCODE_IO_GENERAL );
+        }
+    }
+    catch(const Exception & )
+    {
+        SetError( ERRCODE_IO_GENERAL );
+    }
+    return 0;
+}
+
+std::size_t UCBStream::PutData(const void* pData, std::size_t nSize)
+{
+    try
+    {
+        Reference< XOutputStream > xOSFromS;
+        if( xS.is() && (xOSFromS = xS->getOutputStream()).is() )
+        {
+            Sequence<sal_Int8> aData( static_cast<const sal_Int8 *>(pData), nSize );
+            xOSFromS->writeBytes( aData );
+            return nSize;
+        }
+        else
+        {
+            SetError( ERRCODE_IO_GENERAL );
+        }
+    }
+    catch(const Exception & )
+    {
+        SetError( ERRCODE_IO_GENERAL );
+    }
+    return 0;
+}
+
+sal_uInt64 UCBStream::SeekPos( sal_uInt64 nPos )
+{
+    try
+    {
+        if( xSeek.is() )
+        {
+            sal_uInt64 nLen = static_cast<sal_uInt64>( xSeek->getLength() );
+            if( nPos > nLen )
+            {
+                nPos = nLen;
+            }
+            xSeek->seek( nPos );
+            return nPos;
+        }
+        else
+        {
+            SetError( ERRCODE_IO_GENERAL );
+        }
+    }
+    catch(const Exception & )
+    {
+        SetError( ERRCODE_IO_GENERAL );
+    }
+    return 0;
+}
+
+void UCBStream::FlushData()
+{
+    try
+    {
+        Reference< XOutputStream > xOSFromS;
+        if( xS.is() && (xOSFromS = xS->getOutputStream()).is() )
+        {
+            xOSFromS->flush();
+        }
+        else
+        {
+            SetError( ERRCODE_IO_GENERAL );
+        }
+    }
+    catch(const Exception & )
+    {
+        SetError( ERRCODE_IO_GENERAL );
+    }
+}
+
+void    UCBStream::SetSize( sal_uInt64 )
+{
+    SAL_WARN("basic", "UCBStream::SetSize not allowed to call from basic" );
+    SetError( ERRCODE_IO_GENERAL );
+}
+
+
+ErrCode const & SbiStream::Open
+( std::string_view rName, StreamMode nStrmMode, SbiStreamFlags nFlags, short nL )
+{
+    nMode   = nFlags;
+    nLen    = nL;
+    nLine   = 0;
+    nExpandOnWriteTo = 0;
+    if( ( nStrmMode & ( StreamMode::READ|StreamMode::WRITE ) ) == StreamMode::READ )
+    {
+        nStrmMode |= StreamMode::NOCREATE;
+    }
+    OUString aStr(OStringToOUString(rName, osl_getThreadTextEncoding()));
+    OUString aNameStr = getFullPath( aStr );
+
+    if( hasUno() )
+    {
+        Reference< XSimpleFileAccess3 > xSFI( SimpleFileAccess::create( comphelper::getProcessComponentContext() ) );
+        try
+        {
+
+        // #??? For write access delete file if it already exists (not for appending)
+        if( (nStrmMode & StreamMode::WRITE) && !IsAppend() && !IsBinary() && !IsRandom() &&
+            xSFI->exists( aNameStr ) && !xSFI->isFolder( aNameStr ) )
+        {
+            xSFI->kill( aNameStr );
+        }
+
+        if( (nStrmMode & (StreamMode::READ | StreamMode::WRITE)) == (StreamMode::READ | StreamMode::WRITE) )
+        {
+            Reference< XStream > xIS = xSFI->openFileReadWrite( aNameStr );
+            pStrm.reset( new UCBStream( xIS ) );
+        }
+        else if( nStrmMode & StreamMode::WRITE )
+        {
+            Reference< XStream > xIS = xSFI->openFileReadWrite( aNameStr );
+            pStrm.reset( new UCBStream( xIS ) );
+        }
+        else //if( nStrmMode & StreamMode::READ )
+        {
+            Reference< XInputStream > xIS = xSFI->openFileRead( aNameStr );
+            pStrm.reset( new UCBStream( xIS ) );
+        }
+
+        }
+        catch(const Exception & )
+        {
+            nError = ERRCODE_IO_GENERAL;
+        }
+    }
+
+    if( !pStrm )
+    {
+        pStrm.reset( new OslStream( aNameStr, nStrmMode ) );
+    }
+    if( IsAppend() )
+    {
+        pStrm->Seek( STREAM_SEEK_TO_END );
+    }
+    MapError();
+    if( nError )
+    {
+        pStrm.reset();
+    }
+    return nError;
+}
+
+ErrCode const & SbiStream::Close()
+{
+    if( pStrm )
+    {
+        MapError();
+        pStrm.reset();
+    }
+    return nError;
+}
+
+ErrCode SbiStream::Read(OString& rBuf, sal_uInt16 n, bool bForceReadingPerByte)
+{
+    nExpandOnWriteTo = 0;
+    if( !bForceReadingPerByte && IsText() )
+    {
+        pStrm->ReadLine(rBuf);
+        nLine++;
+    }
+    else
+    {
+        if( !n )
+        {
+            n = nLen;
+        }
+        if( !n )
+        {
+            return nError = ERRCODE_BASIC_BAD_RECORD_LENGTH;
+        }
+        OStringBuffer aBuffer(read_uInt8s_ToOString(*pStrm, n));
+        //Pad it out with ' ' to the requested length on short read
+        sal_Int32 nRequested = sal::static_int_cast<sal_Int32>(n);
+        comphelper::string::padToLength(aBuffer, nRequested, ' ');
+        rBuf = aBuffer.makeStringAndClear();
+    }
+    MapError();
+    if( !nError && pStrm->eof() )
+    {
+        nError = ERRCODE_BASIC_READ_PAST_EOF;
+    }
+    return nError;
+}
+
+ErrCode const & SbiStream::Read( char& ch )
+{
+    nExpandOnWriteTo = 0;
+    if (aLine.isEmpty())
+    {
+        Read( aLine );
+        aLine += "\n";
+    }
+    ch = aLine[0];
+    aLine = aLine.copy(1);
+    return nError;
+}
+
+void SbiStream::ExpandFile()
+{
+    if ( !nExpandOnWriteTo )
+        return;
+
+    sal_uInt64 nCur = pStrm->Seek(STREAM_SEEK_TO_END);
+    if( nCur < nExpandOnWriteTo )
+    {
+        sal_uInt64 nDiff = nExpandOnWriteTo - nCur;
+        while( nDiff-- )
+        {
+            pStrm->WriteChar( 0 );
+        }
+    }
+    else
+    {
+        pStrm->Seek( nExpandOnWriteTo );
+    }
+    nExpandOnWriteTo = 0;
+}
+
+namespace
+{
+    void WriteLines(SvStream &rStream, const OString& rStr)
+    {
+        OString aStr(convertLineEnd(rStr, rStream.GetLineDelimiter()) );
+        write_uInt8s_FromOString(rStream, aStr);
+        endl( rStream );
+    }
+}
+
+ErrCode SbiStream::Write( const OString& rBuf )
+{
+    ExpandFile();
+    if( IsAppend() )
+    {
+        pStrm->Seek( STREAM_SEEK_TO_END );
+    }
+    if( IsText() )
+    {
+        aLine += rBuf;
+        // Get it out, if the end is an LF, but strip CRLF before,
+        // because the SvStream adds a CRLF!
+        sal_Int32 nLineLen = aLine.getLength();
+        if (nLineLen && aLine[--nLineLen] == 0x0A)
+        {
+            aLine = aLine.copy(0, nLineLen);
+            if (nLineLen && aLine[--nLineLen] == 0x0D)
+            {
+                aLine = aLine.copy(0, nLineLen);
+            }
+            WriteLines(*pStrm, aLine);
+            aLine.clear();
+        }
+    }
+    else
+    {
+        if( !nLen )
+        {
+            return nError = ERRCODE_BASIC_BAD_RECORD_LENGTH;
+        }
+        pStrm->WriteBytes(rBuf.getStr(), nLen);
+        MapError();
+    }
+    return nError;
+}
+
+
+SbiIoSystem::SbiIoSystem()
+{
+    for(SbiStream* & i : pChan)
+    {
+        i = nullptr;
+    }
+    nChan  = 0;
+    nError = ERRCODE_NONE;
+}
+
+SbiIoSystem::~SbiIoSystem() COVERITY_NOEXCEPT_FALSE
+{
+    Shutdown();
+}
+
+ErrCode SbiIoSystem::GetError()
+{
+    ErrCode n = nError;
+    nError = ERRCODE_NONE;
+    return n;
+}
+
+void SbiIoSystem::Open(short nCh, std::string_view rName, StreamMode nMode, SbiStreamFlags nFlags, short nLen)
+{
+    nError = ERRCODE_NONE;
+    if( nCh >= CHANNELS || !nCh )
+    {
+        nError = ERRCODE_BASIC_BAD_CHANNEL;
+    }
+    else if( pChan[ nCh ] )
+    {
+        nError = ERRCODE_BASIC_FILE_ALREADY_OPEN;
+    }
+    else
+    {
+       pChan[ nCh ] = new SbiStream;
+       nError = pChan[ nCh ]->Open( rName, nMode, nFlags, nLen );
+       if( nError )
+       {
+            delete pChan[ nCh ];
+            pChan[ nCh ] = nullptr;
+       }
+    }
+    nChan = 0;
+}
+
+
+void SbiIoSystem::Close()
+{
+    if( !nChan )
+    {
+        nError = ERRCODE_BASIC_BAD_CHANNEL;
+    }
+    else if( !pChan[ nChan ] )
+    {
+        nError = ERRCODE_BASIC_BAD_CHANNEL;
+    }
+    else
+    {
+        nError = pChan[ nChan ]->Close();
+        delete pChan[ nChan ];
+        pChan[ nChan ] = nullptr;
+    }
+    nChan = 0;
+}
+
+
+void SbiIoSystem::Shutdown()
+{
+    for( short i = 1; i < CHANNELS; i++ )
+    {
+        if( pChan[ i ] )
+        {
+            ErrCode n = pChan[ i ]->Close();
+            delete pChan[ i ];
+            pChan[ i ] = nullptr;
+            if( n && !nError )
+            {
+                nError = n;
+            }
+        }
+    }
+    nChan = 0;
+    // anything left to PRINT?
+    if( !aOut.isEmpty() )
+    {
+        std::unique_ptr<weld::MessageDialog> xBox(Application::CreateMessageDialog(Application::GetDefDialogParent(), VclMessageType::Warning,
+            VclButtonsType::Ok, aOut));
+        xBox->run();
+    }
+    aOut.clear();
+}
+
+
+void SbiIoSystem::Read(OString& rBuf)
+{
+    if( !nChan )
+    {
+        ReadCon( rBuf );
+    }
+    else if( !pChan[ nChan ] )
+    {
+        nError = ERRCODE_BASIC_BAD_CHANNEL;
+    }
+    else
+    {
+        nError = pChan[ nChan ]->Read( rBuf );
+    }
+}
+
+char SbiIoSystem::Read()
+{
+    char ch = ' ';
+    if( !nChan )
+    {
+        if( aIn.isEmpty() )
+        {
+            ReadCon( aIn );
+            aIn += "\n";
+        }
+        ch = aIn[0];
+        aIn = aIn.copy(1);
+    }
+    else if( !pChan[ nChan ] )
+    {
+        nError = ERRCODE_BASIC_BAD_CHANNEL;
+    }
+    else
+    {
+        nError = pChan[ nChan ]->Read( ch );
+    }
+    return ch;
+}
+
+void SbiIoSystem::Write(std::u16string_view rBuf)
+{
+    if( !nChan )
+    {
+        WriteCon( rBuf );
+    }
+    else if( !pChan[ nChan ] )
+    {
+        nError = ERRCODE_BASIC_BAD_CHANNEL;
+    }
+    else
+    {
+        nError = pChan[ nChan ]->Write( OUStringToOString(rBuf, osl_getThreadTextEncoding()) );
+    }
+}
+
+// nChannel == 0..CHANNELS-1
+
+SbiStream* SbiIoSystem::GetStream( short nChannel ) const
+{
+    SbiStream* pRet = nullptr;
+    if( nChannel >= 0 && nChannel < CHANNELS )
+    {
+        pRet = pChan[ nChannel ];
+    }
+    return pRet;
+}
+
+void SbiIoSystem::CloseAll()
+{
+    for( short i = 1; i < CHANNELS; i++ )
+    {
+        if( pChan[ i ] )
+        {
+            ErrCode n = pChan[ i ]->Close();
+            delete pChan[ i ];
+            pChan[ i ] = nullptr;
+            if( n && !nError )
+            {
+                nError = n;
+            }
+        }
+    }
+}
+
+void SbiIoSystem::ReadCon(OString& rIn)
+{
+    OUString aPromptStr(OStringToOUString(aPrompt, osl_getThreadTextEncoding()));
+    SbiInputDialog aDlg(nullptr, aPromptStr);
+    if (aDlg.run() == RET_OK)
+    {
+        rIn = OUStringToOString(aDlg.GetInput(), osl_getThreadTextEncoding());
+    }
+    else
+    {
+        nError = ERRCODE_BASIC_USER_ABORT;
+    }
+    aPrompt.clear();
+}
+
+// output of a MessageBox, if there's a CR in the console-buffer
+
+void SbiIoSystem::WriteCon(std::u16string_view rText)
+{
+    aOut += rText;
+    sal_Int32 n1 = aOut.indexOf('\n');
+    sal_Int32 n2 = aOut.indexOf('\r');
+    if( n1 == -1 && n2 == -1 )
+        return;
+
+    if( n1 == -1 )
+    {
+        n1 = n2;
+    }
+    else if( n2 == -1 )
+    {
+        n2 = n1;
+    }
+    if( n1 > n2 )
+    {
+        n1 = n2;
+    }
+    OUString s(aOut.copy(0, n1));
+    aOut = aOut.copy(n1);
+    while ( !aOut.isEmpty() && (aOut[0] == '\n' || aOut[0] == '\r') )
+    {
+        aOut = aOut.copy(1);
+    }
+    {
+        SolarMutexGuard aSolarGuard;
+
+        std::unique_ptr<weld::MessageDialog> xBox(Application::CreateMessageDialog(Application::GetDefDialogParent(), VclMessageType::Warning,
+            VclButtonsType::OkCancel, s));
+        xBox->set_default_response(RET_OK);
+        if (!xBox->run())
+        {
+            nError = ERRCODE_BASIC_USER_ABORT;
+        }
+    }
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */