Get rid of aEmptyOUStr

Commit 8051bb7e18ccae0f639e65dfa86bcc18a5fb9108 had removed its "String"
counterpart.

Change-Id: Id873a259e7f4b2794e94dec83d08ed6b57298beb
Reviewed-on: https://gerrit.libreoffice.org/65299
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

16 files changed, 64 insertions, 63 deletions

diff --git a/sw/source/uibase/app/appenv.cxx b/sw/source/uibase/app/appenv.cxx
index 8815f6a97ee2..92f15c173e3f 100644
--- a/sw/source/uibase/app/appenv.cxx
+++ b/sw/source/uibase/app/appenv.cxx
@@ -112,7 +112,7 @@ OUString InsertLabEnvText( SwWrtShell& rSh, SwFieldMgr& rFieldMgr, const OUStrin
                     if (comphelper::string::getTokenCount(sDBName, '.') >= 3)
                     {
                         sDBName = ::ReplacePoint(sDBName, true);
-                        SwInsertField_Data aData(TYP_DBFLD, 0, sDBName, aEmptyOUStr, 0, &rSh );
+                        SwInsertField_Data aData(TYP_DBFLD, 0, sDBName, OUString(), 0, &rSh);
                         rFieldMgr.InsertField( aData );
                         sRet = sDBName;
                         bField = true;
diff --git a/sw/source/uibase/app/applab.cxx b/sw/source/uibase/app/applab.cxx
index 9cc87905358b..cb564aca3d7c 100644
--- a/sw/source/uibase/app/applab.cxx
+++ b/sw/source/uibase/app/applab.cxx
@@ -141,7 +141,7 @@ static const SwFrameFormat *lcl_InsertLabText( SwWrtShell& rSh, const SwLabItem&
     if( (!rItem.m_bSynchron || !(nCol|nRow)) && !(sDBName = InsertLabEnvText( rSh, rFieldMgr, rItem.m_aWriting )).isEmpty() && !bLast )
     {
         sDBName = comphelper::string::setToken(sDBName, 3, DB_DELIM, "True");
-        SwInsertField_Data aData(TYP_DBNEXTSETFLD, 0, sDBName, aEmptyOUStr, 0, &rSh );
+        SwInsertField_Data aData(TYP_DBNEXTSETFLD, 0, sDBName, OUString(), 0, &rSh);
         rFieldMgr.InsertField( aData );
     }
 
diff --git a/sw/source/uibase/app/docsh.cxx b/sw/source/uibase/app/docsh.cxx
index 651f04e899fc..efafcfeef501 100644
--- a/sw/source/uibase/app/docsh.cxx
+++ b/sw/source/uibase/app/docsh.cxx
@@ -320,7 +320,7 @@ bool SwDocShell::Save()
         case SfxObjectCreateMode::ORGANIZER:
             {
                 WriterRef xWrt;
-                ::GetXMLWriter( aEmptyOUStr, GetMedium()->GetBaseURL( true ), xWrt );
+                ::GetXMLWriter(OUString(), GetMedium()->GetBaseURL(true), xWrt);
                 xWrt->SetOrganizerMode( true );
                 SwWriter aWrt( *GetMedium(), *m_xDoc );
                 nErr = aWrt.Write( xWrt );
@@ -348,7 +348,7 @@ bool SwDocShell::Save()
                     m_pWrtShell->EndAllTableBoxEdit();
 
                 WriterRef xWrt;
-                ::GetXMLWriter( aEmptyOUStr, GetMedium()->GetBaseURL( true ), xWrt );
+                ::GetXMLWriter(OUString(), GetMedium()->GetBaseURL(true), xWrt);
 
                 bool bLockedView(false);
                 if (m_pWrtShell)
@@ -544,7 +544,7 @@ bool SwDocShell::SaveAs( SfxMedium& rMedium )
                             SfxObjectCreateMode::EMBEDDED == GetCreateMode() );
 
         WriterRef xWrt;
-        ::GetXMLWriter( aEmptyOUStr, rMedium.GetBaseURL( true ), xWrt );
+        ::GetXMLWriter(OUString(), rMedium.GetBaseURL(true), xWrt);
 
         bool bLockedView(false);
         if (m_pWrtShell)
@@ -984,7 +984,7 @@ HiddenInformation SwDocShell::GetHiddenInformationState( HiddenInformation nStat
         OSL_ENSURE( GetWrtShell(), "No SwWrtShell, no information" );
         if ( GetWrtShell() )
         {
-            SwFieldType* pType = GetWrtShell()->GetFieldType( SwFieldIds::Postit, aEmptyOUStr );
+            SwFieldType* pType = GetWrtShell()->GetFieldType(SwFieldIds::Postit, OUString());
             SwIterator<SwFormatField,SwFieldType> aIter( *pType );
             SwFormatField* pFirst = aIter.First();
             while( pFirst )
diff --git a/sw/source/uibase/app/docsh2.cxx b/sw/source/uibase/app/docsh2.cxx
index ef501c1d0e56..ddcb76e54617 100644
--- a/sw/source/uibase/app/docsh2.cxx
+++ b/sw/source/uibase/app/docsh2.cxx
@@ -729,7 +729,7 @@ void SwDocShell::Execute(SfxRequest& rReq)
                         aTempFile.EnableKillingFile();
                         pSrcView->SaveContent(aTempFile.GetURL());
                         bDone = true;
-                        SvxMacro aMac(aEmptyOUStr, aEmptyOUStr, STARBASIC);
+                        SvxMacro aMac(OUString(), OUString(), STARBASIC);
                         SfxEventConfiguration::ConfigureEvent(GlobalEventConfig::GetEventName( GlobalEventId::OPENDOC ), aMac, this);
                         SfxEventConfiguration::ConfigureEvent(GlobalEventConfig::GetEventName( GlobalEventId::PREPARECLOSEDOC ), aMac, this);
                         SfxEventConfiguration::ConfigureEvent(GlobalEventConfig::GetEventName( GlobalEventId::ACTIVATEDOC ),     aMac, this);
@@ -783,7 +783,7 @@ void SwDocShell::Execute(SfxRequest& rReq)
                 {
                     WriterRef xWrt;
                     // mba: looks as if relative URLs don't make sense here
-                    ::GetRTFWriter( aEmptyOUStr, OUString(), xWrt );
+                    ::GetRTFWriter(OUString(), OUString(), xWrt);
                     SvMemoryStream *pStrm = new SvMemoryStream();
                     pStrm->SetBufferSize( 16348 );
                     SwWriter aWrt( *pStrm, *pSmryDoc );
@@ -1142,7 +1142,7 @@ void SwDocShell::Execute(SfxRequest& rReq)
                         if( bDone )
                         {
                             SfxStringItem aName( SID_FILE_NAME, aFileName );
-                            SfxStringItem aReferer( SID_REFERER, aEmptyOUStr );
+                            SfxStringItem aReferer(SID_REFERER, OUString());
                             SfxViewShell* pViewShell = SfxViewShell::GetFirst();
                             while(pViewShell)
                             {
diff --git a/sw/source/uibase/app/docshini.cxx b/sw/source/uibase/app/docshini.cxx
index e0b5204db7d9..5f680efb389e 100644
--- a/sw/source/uibase/app/docshini.cxx
+++ b/sw/source/uibase/app/docshini.cxx
@@ -199,7 +199,7 @@ bool SwDocShell::InitNew( const uno::Reference < embed::XStorage >& xStor )
                 }
 
                 pFontItem.reset(new SvxFontItem(aFont.GetFamilyType(), aFont.GetFamilyName(),
-                                                aEmptyOUStr, aFont.GetPitch(), aFont.GetCharSet(), nFontWhich));
+                                                OUString(), aFont.GetPitch(), aFont.GetCharSet(), nFontWhich));
             }
             else
             {
@@ -216,7 +216,7 @@ bool SwDocShell::InitNew( const uno::Reference < embed::XStorage >& xStor )
                     eLanguage,
                     GetDefaultFontFlags::OnlyOne );
                 pFontItem.reset(new SvxFontItem(aLangDefFont.GetFamilyType(), aLangDefFont.GetFamilyName(),
-                                                aEmptyOUStr, aLangDefFont.GetPitch(), aLangDefFont.GetCharSet(), nFontWhich));
+                                                OUString(), aLangDefFont.GetPitch(), aLangDefFont.GetCharSet(), nFontWhich));
             }
             m_xDoc->SetDefault(*pFontItem);
             if( !bHTMLTemplSet )
@@ -284,7 +284,7 @@ bool SwDocShell::InitNew( const uno::Reference < embed::XStorage >& xStor )
                                                     nFontWhich, false ) )
                 {
                     pColl->SetFormatAttr(SvxFontItem(aFont.GetFamilyType(), aFont.GetFamilyName(),
-                                                  aEmptyOUStr, aFont.GetPitch(), aFont.GetCharSet(), nFontWhich));
+                                                  OUString(), aFont.GetPitch(), aFont.GetCharSet(), nFontWhich));
                 }
             }
             sal_Int32 nFontHeight = pStdFont->GetFontHeight( static_cast< sal_Int8 >(aFontIdPoolId[nIdx]), 0, eLanguage );
@@ -521,7 +521,7 @@ bool  SwDocShell::Load( SfxMedium& rMedium )
                     if( ReadXML )
                     {
                         ReadXML->SetOrganizerMode( true );
-                        SwReader aRdr( rMedium, aEmptyOUStr, m_xDoc.get() );
+                        SwReader aRdr(rMedium, OUString(), m_xDoc.get());
                         nErr = aRdr.Read( *ReadXML );
                         ReadXML->SetOrganizerMode( false );
                     }
@@ -544,7 +544,7 @@ bool  SwDocShell::Load( SfxMedium& rMedium )
                     {
                         // set Doc's DocInfo at DocShell-Medium
                         SAL_INFO( "sw.ui", "before ReadDocInfo" );
-                        SwReader aRdr( rMedium, aEmptyOUStr, m_xDoc.get() );
+                        SwReader aRdr(rMedium, OUString(), m_xDoc.get());
                         SAL_INFO( "sw.ui", "before Read" );
                         nErr = aRdr.Read( *pReader );
                         SAL_INFO( "sw.ui", "after Read" );
@@ -611,7 +611,7 @@ bool  SwDocShell::LoadFrom( SfxMedium& rMedium )
                 if( ReadXML )
                 {
                     ReadXML->SetOrganizerMode( true );
-                    SwReader aRdr( rMedium, aEmptyOUStr, m_xDoc.get() );
+                    SwReader aRdr(rMedium, OUString(), m_xDoc.get());
                     nErr = aRdr.Read( *ReadXML );
                     ReadXML->SetOrganizerMode( false );
                 }
diff --git a/sw/source/uibase/app/docst.cxx b/sw/source/uibase/app/docst.cxx
index 27fdffd1f5f3..9d77fed807e8 100644
--- a/sw/source/uibase/app/docst.cxx
+++ b/sw/source/uibase/app/docst.cxx
@@ -495,7 +495,7 @@ void SwDocShell::ExecStyleSheet( SfxRequest& rReq )
                 switch(nSlot)
                 {
                     case SID_STYLE_EDIT:
-                        Edit(aParam, aEmptyOUStr, nFamily, nMask, false, OString(), pActShell);
+                        Edit(aParam, OUString(), nFamily, nMask, false, OString(), pActShell);
                         break;
                     case SID_STYLE_DELETE:
                         Delete(aParam, nFamily);
@@ -700,7 +700,7 @@ void SwDocShell::Edit(
                         respectively "".*/
                     if (pColl && pColl->IsAssignedToListLevelOfOutlineStyle())
                     {
-                        SwNumRuleItem aItem(aEmptyOUStr);
+                        SwNumRuleItem aItem;
                         pDStyle->GetCollection()->SetFormatAttr( aItem );
                         pDStyle->GetCollection()->SetAttrOutlineLevel( 0 );
                     }
@@ -1374,7 +1374,7 @@ void SwDocShell::FormatPage(
     SwWrtShell& rActShell,
     SfxRequest* pRequest)
 {
-    Edit(rPage, aEmptyOUStr, SfxStyleFamily::Page, SfxStyleSearchBits::Auto, false, rPageId, &rActShell, pRequest);
+    Edit(rPage, OUString(), SfxStyleFamily::Page, SfxStyleSearchBits::Auto, false, rPageId, &rActShell, pRequest);
 }
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/sw/source/uibase/app/docstyle.cxx b/sw/source/uibase/app/docstyle.cxx
index 184ca24c2d85..f7b254c42635 100644
--- a/sw/source/uibase/app/docstyle.cxx
+++ b/sw/source/uibase/app/docstyle.cxx
@@ -737,7 +737,10 @@ const OUString&  SwDocStyleSheet::GetParent() const
         case SfxStyleFamily::Page:
         case SfxStyleFamily::Pseudo:
         default:
-            return aEmptyOUStr;       // there's no parent
+            {
+                static const OUString sEmpty;
+                return sEmpty; // there's no parent
+            }
         }
 
         OUString sTmp;
diff --git a/sw/source/uibase/dbui/dbmgr.cxx b/sw/source/uibase/dbui/dbmgr.cxx
index 09f88dd03632..47691cf0d181 100644
--- a/sw/source/uibase/dbui/dbmgr.cxx
+++ b/sw/source/uibase/dbui/dbmgr.cxx
@@ -1319,7 +1319,7 @@ bool SwDBManager::MergeMailFiles(SwWrtShell* pSourceShell,
     }
 
     // Progress, to prohibit KeyInputs
-    SfxProgress aProgress(pSourceDocSh, ::aEmptyOUStr, 1);
+    SfxProgress aProgress(pSourceDocSh, OUString(), 1);
 
     // lock all dispatchers
     SfxViewFrame* pViewFrame = SfxViewFrame::GetFirst(pSourceDocSh);
diff --git a/sw/source/uibase/dochdl/gloshdl.cxx b/sw/source/uibase/dochdl/gloshdl.cxx
index 6331e5a1d08d..b486c3b3041a 100644
--- a/sw/source/uibase/dochdl/gloshdl.cxx
+++ b/sw/source/uibase/dochdl/gloshdl.cxx
@@ -479,8 +479,8 @@ bool SwGlossaryHdl::Expand(weld::Window* pParent, const OUString& rShortName,
     }
     else
     {
-        SvxMacro aStartMacro(aEmptyOUStr, aEmptyOUStr, STARBASIC);
-        SvxMacro aEndMacro(aEmptyOUStr, aEmptyOUStr, STARBASIC);
+        SvxMacro aStartMacro(OUString(), OUString(), STARBASIC);
+        SvxMacro aEndMacro(OUString(), OUString(), STARBASIC);
         GetMacros( aShortName, aStartMacro, aEndMacro, pGlossary.get() );
 
         // StartAction must not be before HasSelection and DelRight,
@@ -527,8 +527,8 @@ bool SwGlossaryHdl::InsertGlossary(const OUString &rName)
         return false;
     }
 
-    SvxMacro aStartMacro(aEmptyOUStr, aEmptyOUStr, STARBASIC);
-    SvxMacro aEndMacro(aEmptyOUStr, aEmptyOUStr, STARBASIC);
+    SvxMacro aStartMacro(OUString(), OUString(), STARBASIC);
+    SvxMacro aEndMacro(OUString(), OUString(), STARBASIC);
     GetMacros( rName, aStartMacro, aEndMacro, pGlos );
 
     // StartAction must not be before HasSelection and DelRight,
diff --git a/sw/source/uibase/dochdl/swdtflvr.cxx b/sw/source/uibase/dochdl/swdtflvr.cxx
index a3e7872eb030..1e0130f292d6 100644
--- a/sw/source/uibase/dochdl/swdtflvr.cxx
+++ b/sw/source/uibase/dochdl/swdtflvr.cxx
@@ -461,7 +461,7 @@ bool SwTransferable::GetData( const DataFlavor& rFlavor, const OUString& rDestDo
             if( rURL.GetMap() )
                 m_pImageMap.reset(new ImageMap( *rURL.GetMap() ));
             else if( !rURL.GetURL().isEmpty() )
-                m_pTargetURL.reset(new INetImage( aEmptyOUStr, rURL.GetURL(),
+                m_pTargetURL.reset(new INetImage(OUString(), rURL.GetURL(),
                                             rURL.GetTargetFrameName() ));
         }
     }
@@ -699,16 +699,16 @@ bool SwTransferable::WriteObject( tools::SvRef<SotStorageStream>& xStream,
         break;
 
     case SWTRANSFER_OBJECTTYPE_HTML:
-        GetHTMLWriter( aEmptyOUStr, OUString(), xWrt );
+        GetHTMLWriter(OUString(), OUString(), xWrt);
         break;
 
     case SWTRANSFER_OBJECTTYPE_RTF:
     case SWTRANSFER_OBJECTTYPE_RICHTEXT:
-        GetRTFWriter( aEmptyOUStr, OUString(), xWrt );
+        GetRTFWriter(OUString(), OUString(), xWrt);
         break;
 
     case SWTRANSFER_OBJECTTYPE_STRING:
-        GetASCWriter( aEmptyOUStr, OUString(), xWrt );
+        GetASCWriter(OUString(), OUString(), xWrt);
         if( xWrt.is() )
         {
             SwAsciiOptions aAOpt;
@@ -1717,7 +1717,7 @@ bool SwTransferable::PasteFileContent( TransferableDataHelper& rData,
         rSh.SetChgLnk( Link<SwCursorShell*,void>() );
 
         const SwPosition& rInsPos = *rSh.GetCursor()->Start();
-        SwReader aReader( *pStream, aEmptyOUStr, OUString(), *rSh.GetCursor() );
+        SwReader aReader(*pStream, OUString(), OUString(), *rSh.GetCursor());
         rSh.SaveTableBoxContent( &rInsPos );
         if( aReader.Read( *pRead ).IsError() )
             pResId = STR_ERROR_CLPBRD_READ;
@@ -1813,7 +1813,7 @@ bool SwTransferable::PasteOLE( TransferableDataHelper& rData, SwWrtShell& rSh,
     if( pRead )
     {
         SwPaM &rPAM = *rSh.GetCursor();
-        SwReader aReader( xStore, aEmptyOUStr, rPAM );
+        SwReader aReader(xStore, OUString(), rPAM);
         if( ! aReader.Read( *pRead ).IsError() )
             bRet = true;
         else if( bMsg )
@@ -1991,7 +1991,7 @@ bool SwTransferable::PasteTargetURL( TransferableDataHelper& rData,
             //!!! check at FileSystem - only then it make sense to test graphics !!!
             Graphic aGraphic;
             GraphicFilter &rFlt = GraphicFilter::GetGraphicFilter();
-            bRet = ERRCODE_NONE == GraphicFilter::LoadGraphic( sURL, aEmptyOUStr, aGraphic, &rFlt );
+            bRet = ERRCODE_NONE == GraphicFilter::LoadGraphic(sURL, OUString(), aGraphic, &rFlt);
 
             if( bRet )
             {
@@ -2002,7 +2002,7 @@ bool SwTransferable::PasteTargetURL( TransferableDataHelper& rData,
                 {
                 case SwPasteSdr::Insert:
                     SwTransferable::SetSelInShell( rSh, false, pPt );
-                    rSh.Insert( sURL, aEmptyOUStr, aGraphic );
+                    rSh.Insert(sURL, OUString(), aGraphic);
                     break;
 
                 case SwPasteSdr::Replace:
@@ -2013,18 +2013,18 @@ bool SwTransferable::PasteTargetURL( TransferableDataHelper& rData,
                         SwTransferable::SetSelInShell( rSh, true, &aPt );
                     }
                     else
-                        rSh.ReRead( sURL, aEmptyOUStr, &aGraphic );
+                        rSh.ReRead(sURL, OUString(), &aGraphic);
                     break;
 
                 case SwPasteSdr::SetAttr:
                     if( rSh.IsObjSelected() )
                         rSh.Paste( aGraphic, OUString() );
                     else if( OBJCNT_GRF == rSh.GetObjCntTypeOfSelection() )
-                        rSh.ReRead( sURL, aEmptyOUStr, &aGraphic );
+                        rSh.ReRead(sURL, OUString(), &aGraphic);
                     else
                     {
                         SwTransferable::SetSelInShell( rSh, false, pPt );
-                        rSh.Insert( sURL, aEmptyOUStr, aGraphic );
+                        rSh.Insert(sURL, OUString(), aGraphic);
                     }
                     break;
                 default:
@@ -2357,7 +2357,7 @@ bool SwTransferable::PasteGrf( TransferableDataHelper& rData, SwWrtShell& rSh,
     {
         //!!! check at FileSystem - only then it makes sense to test the graphics !!!
         GraphicFilter &rFlt = GraphicFilter::GetGraphicFilter();
-        bRet = ERRCODE_NONE == GraphicFilter::LoadGraphic( aBkmk.GetURL(), aEmptyOUStr,
+        bRet = ERRCODE_NONE == GraphicFilter::LoadGraphic(aBkmk.GetURL(), OUString(),
                                             aGraphic, &rFlt );
 
         if( !bRet && SwPasteSdr::SetAttr == nAction &&
@@ -2398,7 +2398,7 @@ bool SwTransferable::PasteGrf( TransferableDataHelper& rData, SwWrtShell& rSh,
             case SwPasteSdr::Insert:
             {
                 SwTransferable::SetSelInShell( rSh, false, pPt );
-                rSh.Insert( sURL, aEmptyOUStr, aGraphic, nullptr, nAnchorType );
+                rSh.Insert(sURL, OUString(), aGraphic, nullptr, nAnchorType);
                 break;
             }
 
@@ -2412,14 +2412,14 @@ bool SwTransferable::PasteGrf( TransferableDataHelper& rData, SwWrtShell& rSh,
                     // a writer graphic; maybe this is an option later again if wanted
                     rSh.Paste( aGraphic, sURL );
 
-                    // rSh.ReplaceSdrObj( sURL, aEmptyOUStr, &aGraphic );
+                    // rSh.ReplaceSdrObj(sURL, OUString(), &aGraphic);
                     // Point aPt( pPt ? *pPt : rSh.GetCursorDocPos() );
                     // SwTransferable::SetSelInShell( rSh, true, &aPt );
                 }
                 else
                 {
                     // set graphic at writer graphic without link
-                    rSh.ReRead( sURL, aEmptyOUStr, &aGraphic );
+                    rSh.ReRead(sURL, OUString(), &aGraphic);
                 }
 
                 break;
@@ -2447,12 +2447,12 @@ bool SwTransferable::PasteGrf( TransferableDataHelper& rData, SwWrtShell& rSh,
                 else if( OBJCNT_GRF == rSh.GetObjCntTypeOfSelection() )
                 {
                     // set as linked graphic at writer graphic frame
-                    rSh.ReRead( sURL, aEmptyOUStr, &aGraphic );
+                    rSh.ReRead(sURL, OUString(), &aGraphic);
                 }
                 else
                 {
                     SwTransferable::SetSelInShell( rSh, false, pPt );
-                    rSh.Insert( aBkmk.GetURL(), aEmptyOUStr, aGraphic );
+                    rSh.Insert(aBkmk.GetURL(), OUString(), aGraphic);
                 }
                 break;
             }
@@ -2965,7 +2965,7 @@ bool SwTransferable::PasteSpecial( SwWrtShell& rSh, TransferableDataHelper& rDat
             }
             pDlg->SetObjName( pClipboard->m_aObjDesc.maClassName,
                                 SwResId(pResId) );
-            pDlg->Insert( SotClipboardFormatId::EMBED_SOURCE, aEmptyOUStr );
+            pDlg->Insert(SotClipboardFormatId::EMBED_SOURCE, OUString());
         }
     }
     else
@@ -2977,9 +2977,9 @@ bool SwTransferable::PasteSpecial( SwWrtShell& rSh, TransferableDataHelper& rDat
         }
 
         if( SwTransferable::TestAllowedFormat( rData, SotClipboardFormatId::EMBED_SOURCE, nDest ))
-            pDlg->Insert( SotClipboardFormatId::EMBED_SOURCE, aEmptyOUStr );
+            pDlg->Insert(SotClipboardFormatId::EMBED_SOURCE, OUString());
         if( SwTransferable::TestAllowedFormat( rData, SotClipboardFormatId::LINK_SOURCE, nDest ))
-            pDlg->Insert( SotClipboardFormatId::LINK_SOURCE, aEmptyOUStr );
+            pDlg->Insert(SotClipboardFormatId::LINK_SOURCE, OUString());
     }
 
     if( SwTransferable::TestAllowedFormat( rData, SotClipboardFormatId::LINK, nDest ))
@@ -2987,7 +2987,7 @@ bool SwTransferable::PasteSpecial( SwWrtShell& rSh, TransferableDataHelper& rDat
 
     for( SotClipboardFormatId* pIds = aPasteSpecialIds; *pIds != SotClipboardFormatId::NONE; ++pIds )
         if( SwTransferable::TestAllowedFormat( rData, *pIds, nDest ))
-            pDlg->Insert( *pIds, aEmptyOUStr );
+            pDlg->Insert(*pIds, OUString());
 
     SotClipboardFormatId nFormat = pDlg->GetFormat( rData.GetTransferable() );
 
@@ -3052,7 +3052,7 @@ void SwTransferable::FillClipFormatItem( const SwWrtShell& rSh,
 
     for( SotClipboardFormatId* pIds = aPasteSpecialIds; *pIds != SotClipboardFormatId::NONE; ++pIds )
         if( SwTransferable::TestAllowedFormat( rData, *pIds, nDest ))
-            rToFill.AddClipbrdFormat( *pIds, aEmptyOUStr );
+            rToFill.AddClipbrdFormat(*pIds, OUString());
 }
 
 void SwTransferable::SetDataForDragAndDrop( const Point& rSttPos )
@@ -3719,7 +3719,7 @@ SwTrnsfrDdeLink::SwTrnsfrDdeLink( SwTransferable& rTrans, SwWrtShell& rSh )
         {
             refObj->AddConnectAdvise( this );
             refObj->AddDataAdvise( this,
-                            aEmptyOUStr,
+                            OUString(),
                             ADVISEMODE_NODATA | ADVISEMODE_ONLYONCE );
             nOldTimeOut = refObj->GetUpdateTimeout();
             refObj->SetUpdateTimeout( 0 );
diff --git a/sw/source/uibase/envelp/envimg.cxx b/sw/source/uibase/envelp/envimg.cxx
index 5f5305cad250..e9bfb829dd36 100644
--- a/sw/source/uibase/envelp/envimg.cxx
+++ b/sw/source/uibase/envelp/envimg.cxx
@@ -94,7 +94,6 @@ OUString MakeSender()
 SwEnvItem::SwEnvItem() :
     SfxPoolItem(FN_ENVELOP)
 {
-    m_aAddrText       = aEmptyOUStr;
     m_bSend           = true;
     m_aSendText       = MakeSender();
     m_nSendFromLeft   = 566; // 1 cm
diff --git a/sw/source/uibase/index/toxmgr.cxx b/sw/source/uibase/index/toxmgr.cxx
index d1b78368a7c3..d77a9f8d5bd3 100644
--- a/sw/source/uibase/index/toxmgr.cxx
+++ b/sw/source/uibase/index/toxmgr.cxx
@@ -159,7 +159,7 @@ void SwTOXMgr::UpdateTOXMark(const SwTOXMarkDescription& rDesc)
             if(rDesc.GetPhoneticReadingOfPrimKey())
                 pCurTOXMark->SetPrimaryKeyReading( *rDesc.GetPhoneticReadingOfPrimKey() );
             else
-                pCurTOXMark->SetPrimaryKeyReading( aEmptyOUStr );
+                pCurTOXMark->SetPrimaryKeyReading(OUString());
 
             if( rDesc.GetSecKey() && !rDesc.GetSecKey()->isEmpty() )
             {
@@ -167,25 +167,25 @@ void SwTOXMgr::UpdateTOXMark(const SwTOXMarkDescription& rDesc)
                 if(rDesc.GetPhoneticReadingOfSecKey())
                     pCurTOXMark->SetSecondaryKeyReading( *rDesc.GetPhoneticReadingOfSecKey() );
                 else
-                    pCurTOXMark->SetSecondaryKeyReading( aEmptyOUStr );
+                    pCurTOXMark->SetSecondaryKeyReading(OUString());
             }
             else
             {
-                pCurTOXMark->SetSecondaryKey( aEmptyOUStr );
-                pCurTOXMark->SetSecondaryKeyReading( aEmptyOUStr );
+                pCurTOXMark->SetSecondaryKey(OUString());
+                pCurTOXMark->SetSecondaryKeyReading(OUString());
             }
         }
         else
         {
-            pCurTOXMark->SetPrimaryKey( aEmptyOUStr );
-            pCurTOXMark->SetPrimaryKeyReading( aEmptyOUStr );
-            pCurTOXMark->SetSecondaryKey( aEmptyOUStr );
-            pCurTOXMark->SetSecondaryKeyReading( aEmptyOUStr );
+            pCurTOXMark->SetPrimaryKey(OUString());
+            pCurTOXMark->SetPrimaryKeyReading(OUString());
+            pCurTOXMark->SetSecondaryKey(OUString());
+            pCurTOXMark->SetSecondaryKeyReading(OUString());
         }
         if(rDesc.GetPhoneticReadingOfAltStr())
             pCurTOXMark->SetTextReading( *rDesc.GetPhoneticReadingOfAltStr() );
         else
-            pCurTOXMark->SetTextReading( aEmptyOUStr );
+            pCurTOXMark->SetTextReading(OUString());
         pCurTOXMark->SetMainEntry(rDesc.IsMainEntry());
     }
     else
@@ -348,7 +348,7 @@ bool SwTOXMgr::UpdateOrInsertTOX(const SwTOXDescription& rDesc,
             if(TOX_AUTHORITIES == eCurTOXType)
             {
                 SwAuthorityFieldType* pFType = static_cast<SwAuthorityFieldType*>(
-                                                pSh->GetFieldType(SwFieldIds::TableOfAuthorities, aEmptyOUStr));
+                                                pSh->GetFieldType(SwFieldIds::TableOfAuthorities, OUString()));
                 if (!pFType)
                 {
                     SwAuthorityFieldType const type(pSh->GetDoc());
diff --git a/sw/source/uibase/misc/glshell.cxx b/sw/source/uibase/misc/glshell.cxx
index fa953c925093..ff64e997c7b4 100644
--- a/sw/source/uibase/misc/glshell.cxx
+++ b/sw/source/uibase/misc/glshell.cxx
@@ -106,8 +106,8 @@ static bool lcl_Save( SwWrtShell& rSh, const OUString& rGroupName,
     const SvxAutoCorrCfg& rCfg = SvxAutoCorrCfg::Get();
     std::unique_ptr<SwTextBlocks> pBlock(::GetGlossaries()->GetGroupDoc( rGroupName ));
 
-    SvxMacro aStart(aEmptyOUStr, aEmptyOUStr);
-    SvxMacro aEnd(aEmptyOUStr, aEmptyOUStr);
+    SvxMacro aStart = SvxMacro(OUString(), OUString());
+    SvxMacro aEnd = SvxMacro(OUString(), OUString());
     SwGlossaryHdl* pGlosHdl;
 
     pGlosHdl = rSh.GetView().GetGlosHdl();
diff --git a/sw/source/uibase/misc/redlndlg.cxx b/sw/source/uibase/misc/redlndlg.cxx
index 530e21e090a8..135cd7b49658 100644
--- a/sw/source/uibase/misc/redlndlg.cxx
+++ b/sw/source/uibase/misc/redlndlg.cxx
@@ -905,7 +905,7 @@ IMPL_LINK_NOARG(SwRedlineAcceptDlg, FilterChangedHdl, SvxTPFilter*, void)
     if (pFilterTP->IsAction())
         m_sFilterAction = pFilterTP->GetLbAction()->GetSelectedEntry();
     else
-        m_sFilterAction = aEmptyOUStr;
+        m_sFilterAction.clear();
 
     Init();
 }
diff --git a/sw/source/uibase/ribbar/inputwin.cxx b/sw/source/uibase/ribbar/inputwin.cxx
index 324c0fbd8877..1b4a146010a0 100644
--- a/sw/source/uibase/ribbar/inputwin.cxx
+++ b/sw/source/uibase/ribbar/inputwin.cxx
@@ -66,7 +66,6 @@ SwInputWindow::SwInputWindow(vcl::Window* pParent, SfxDispatcher const * pDispat
     , aEdit(VclPtr<InputEdit>::Create(this, WB_3DLOOK|WB_TABSTOP|WB_BORDER|WB_NOHIDESELECTION))
     , pWrtShell(nullptr)
     , pView(nullptr)
-    , aCurrentTableName(aEmptyOUStr)
     , m_bDoesUndo(true)
     , m_bResetUndo(false)
     , m_bCallUndo(false)
diff --git a/sw/source/uibase/utlui/navipi.cxx b/sw/source/uibase/utlui/navipi.cxx
index cc36b1431f39..6ee69e9944a8 100644
--- a/sw/source/uibase/utlui/navipi.cxx
+++ b/sw/source/uibase/utlui/navipi.cxx
@@ -1053,7 +1053,7 @@ OUString SwNavigationPI::CreateDropFileName( TransferableDataHelper& rData )
                 rData.HasFormat( nFormat = SotClipboardFormatId::FILEGRPDESCRIPTOR ) ||
                 rData.HasFormat( nFormat = SotClipboardFormatId::UNIFORMRESOURCELOCATOR ))
     {
-        INetBookmark aBkmk( aEmptyOUStr, aEmptyOUStr );
+        INetBookmark aBkmk = INetBookmark(OUString(), OUString());
         if (rData.GetINetBookmark(nFormat, aBkmk))
             sFileName = aBkmk.GetURL();
     }