O[U]String::replaceAt overloads that take string_view

which results in lots of nice string_view improvements picked up by the
plugins

Change-Id: Ib0ec3887816b3d4436d003b739d9814f83e244b2
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/125657
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

25 files changed, 44 insertions, 44 deletions

diff --git a/sc/qa/unit/subsequent_export_test2.cxx b/sc/qa/unit/subsequent_export_test2.cxx
index c585d2394c27..a74fff7e04af 100644
--- a/sc/qa/unit/subsequent_export_test2.cxx
+++ b/sc/qa/unit/subsequent_export_test2.cxx
@@ -2328,7 +2328,7 @@ void ScExportTest2::testTdf87973_externalLinkSkipUnuseds()
     // change external link to: 87973_externalSource.ods
     OUString aFormula = rDoc.GetFormula(3, 1, 0);
     auto nIdxOfFilename = aFormula.indexOf("tdf132105_external.ods");
-    aFormula = aFormula.replaceAt(nIdxOfFilename, 22, "87973_externalSource.ods");
+    aFormula = aFormula.replaceAt(nIdxOfFilename, 22, u"87973_externalSource.ods");
     auto nIdxOfFile = aFormula.indexOf("file");
 
     // saveAndReload save the file to a temporary directory
@@ -2344,7 +2344,7 @@ void ScExportTest2::testTdf87973_externalLinkSkipUnuseds()
     // tdf#138832: test the same thing with singleref link
     aFormula = rDoc.GetFormula(3, 2, 0);
     nIdxOfFilename = aFormula.indexOf("tdf132105_external.ods");
-    aFormula = aFormula.replaceAt(nIdxOfFilename, 22, "87973_externalSource.ods");
+    aFormula = aFormula.replaceAt(nIdxOfFilename, 22, u"87973_externalSource.ods");
     nIdxOfFile = aFormula.indexOf("file");
 
     aFormula = aFormula.replaceAt(nIdxOfFile, nIdxOfFilename - nIdxOfFile, aTempFilename);
diff --git a/sc/source/core/data/global2.cxx b/sc/source/core/data/global2.cxx
index 356379dc3f1f..5dcbbdd11709 100644
--- a/sc/source/core/data/global2.cxx
+++ b/sc/source/core/data/global2.cxx
@@ -326,7 +326,7 @@ OUString ScGlobal::GetDocTabName( std::u16string_view rFileName,
     sal_Int32 nPos = 1;
     while( (nPos = aDocTab.indexOf( '\'', nPos )) != -1 )
     {   // escape Quotes
-        aDocTab = aDocTab.replaceAt( nPos, 0, "\\" );
+        aDocTab = aDocTab.replaceAt( nPos, 0, u"\\" );
         nPos += 2;
     }
     aDocTab += "'" + OUStringChar(SC_COMPILER_FILE_TAB_SEP) + rTabName;
diff --git a/sc/source/core/tool/address.cxx b/sc/source/core/tool/address.cxx
index ae4d48787fe3..c09628608bd2 100644
--- a/sc/source/core/tool/address.cxx
+++ b/sc/source/core/tool/address.cxx
@@ -547,7 +547,7 @@ const sal_Unicode* ScRange::Parse_XL_Header(
                 else
                 {
                     rExternDocName = rExternDocName.copy(0, nClose);
-                    rExternDocName = rExternDocName.replaceAt( nOpen, 1, "");
+                    rExternDocName = rExternDocName.replaceAt( nOpen, 1, u"");
                     pMsoxlQuoteStop = p - 1;    // the ' quote char
                     // There may be embedded escaped quotes, just matching the
                     // doc name's length may not work.
diff --git a/sc/source/core/tool/compiler.cxx b/sc/source/core/tool/compiler.cxx
index 952a53423b3f..2c8bf6c5655b 100644
--- a/sc/source/core/tool/compiler.cxx
+++ b/sc/source/core/tool/compiler.cxx
@@ -4118,9 +4118,9 @@ void ScCompiler::AutoCorrectParsedSymbol()
                 (ScCharFlags::Word | ScCharFlags::CharDontCare)) == ScCharFlags::NONE)) )
             nPos--;
         if ( nPos == MAXSTRLEN - 1 )
-            aCorrectedSymbol = aCorrectedSymbol.replaceAt( nPos, 1, OUString(cQuote) );   // '"' the MAXSTRLENth character
+            aCorrectedSymbol = aCorrectedSymbol.replaceAt( nPos, 1, rtl::OUStringChar(cQuote) );   // '"' the MAXSTRLENth character
         else
-            aCorrectedSymbol = aCorrectedSymbol.replaceAt( nPos + 1, 0, OUString(cQuote) );
+            aCorrectedSymbol = aCorrectedSymbol.replaceAt( nPos + 1, 0, rtl::OUStringChar(cQuote) );
         bCorrected = true;
     }
     else if ( c1 != cQuote && c2 == cQuote )
@@ -5448,7 +5448,7 @@ bool ScCompiler::EnQuote( OUString& rStr )
     sal_Int32 nPos = 0;
     while ( (nPos = rStr.indexOf( '\'', nPos)) != -1 )
     {
-        rStr = rStr.replaceAt( nPos, 0, "\\" );
+        rStr = rStr.replaceAt( nPos, 0, u"\\" );
         nPos += 2;
     }
     rStr = "'" + rStr + "'";
diff --git a/sc/source/core/tool/interpr1.cxx b/sc/source/core/tool/interpr1.cxx
index 4e1471c46fbc..fae8a6eeb222 100644
--- a/sc/source/core/tool/interpr1.cxx
+++ b/sc/source/core/tool/interpr1.cxx
@@ -3412,12 +3412,12 @@ void ScInterpreter::ScNumberValue()
     {
         sal_Unicode c = aInputString[ i ];
         if ( c == 0x0020 || c == 0x0009 || c == 0x000A || c == 0x000D )
-            aInputString = aInputString.replaceAt( i, 1, "" ); // remove spaces etc.
+            aInputString = aInputString.replaceAt( i, 1, u"" ); // remove spaces etc.
     }
     sal_Int32 nPercentCount = 0;
     for ( sal_Int32 i = aInputString.getLength() - 1; i >= 0 && aInputString[ i ] == 0x0025; i-- )
     {
-        aInputString = aInputString.replaceAt( i, 1, "" );  // remove and count trailing '%'
+        aInputString = aInputString.replaceAt( i, 1, u"" );  // remove and count trailing '%'
         nPercentCount++;
     }
 
@@ -3446,7 +3446,7 @@ void ScInterpreter::ScClean()
     for ( sal_Int32 i = 0; i < aStr.getLength(); i++ )
     {
         if ( !lcl_ScInterpreter_IsPrintable( aStr[i] ) )
-            aStr = aStr.replaceAt(i,1,"");
+            aStr = aStr.replaceAt(i, 1, u"");
     }
     PushString(aStr);
 }
@@ -8860,7 +8860,7 @@ void ScInterpreter::ScReplace()
             aOldStr.iterateCodePoints( &nIdx );
             ++nCnt;
         }
-        aOldStr = aOldStr.replaceAt( nStart, nIdx - nStart, "" );
+        aOldStr = aOldStr.replaceAt( nStart, nIdx - nStart, u"" );
         if ( CheckStringResultLen( aOldStr, aNewStr ) )
             aOldStr = aOldStr.replaceAt( nStart, 0, aNewStr );
         PushString( aOldStr );
@@ -9700,7 +9700,7 @@ void ScInterpreter::ScSubstitute()
             nCount++;
             if( !nCnt || nCount == nCnt )
             {
-                sStr = sStr.replaceAt(nPos,nOldLen, "");
+                sStr = sStr.replaceAt(nPos,nOldLen, u"");
                 if ( CheckStringResultLen( sStr, sNewStr ) )
                 {
                     sStr = sStr.replaceAt(nPos, 0, sNewStr);
diff --git a/sc/source/core/tool/rangenam.cxx b/sc/source/core/tool/rangenam.cxx
index a0d213ed3c9a..11e177158148 100644
--- a/sc/source/core/tool/rangenam.cxx
+++ b/sc/source/core/tool/rangenam.cxx
@@ -440,7 +440,7 @@ void ScRangeData::MakeValidName( const ScDocument& rDoc, OUString& rName )
     for (nPos=0; nPos<nLen; nPos++)
     {
         if ( !ScCompiler::IsCharFlagAllConventions( rName, nPos, ScCharFlags::Name) )
-            rName = rName.replaceAt( nPos, 1, "_" );
+            rName = rName.replaceAt( nPos, 1, u"_" );
     }
 
     // Ensure that the proposed name is not a reference under any convention,
diff --git a/sc/source/core/tool/rangeutl.cxx b/sc/source/core/tool/rangeutl.cxx
index 439f00a6cb97..c5901c834b40 100644
--- a/sc/source/core/tool/rangeutl.cxx
+++ b/sc/source/core/tool/rangeutl.cxx
@@ -519,7 +519,7 @@ bool ScRangeStringConverter::GetRangeFromString(
 
             if ( nIndex < aUIString.getLength() - 1 &&
                     aUIString[ nIndex + 1 ] == '.' )
-                aUIString = aUIString.replaceAt( nIndex + 1, 1, "" );
+                aUIString = aUIString.replaceAt( nIndex + 1, 1, u"" );
 
             bResult = ((rRange.Parse(aUIString, rDocument, eConv) & ScRefFlags::VALID) ==
                                                                                               ScRefFlags::VALID);
diff --git a/sc/source/filter/dif/difexp.cxx b/sc/source/filter/dif/difexp.cxx
index 18706b2c0916..4e5984f9e943 100644
--- a/sc/source/filter/dif/difexp.cxx
+++ b/sc/source/filter/dif/difexp.cxx
@@ -204,7 +204,7 @@ void ScFormatFilterPluginImpl::ScExportDif( SvStream& rOut, ScDocument* pDoc,
                     sal_Int32 nPos = aTmpStr.indexOf( cStrDelim );
                     while ( nPos != -1 )
                     {
-                        aTmpStr = aTmpStr.replaceAt( nPos, 0, OUString(cStrDelim) );
+                        aTmpStr = aTmpStr.replaceAt( nPos, 0, rtl::OUStringChar(cStrDelim) );
                         nPos = aTmpStr.indexOf( cStrDelim, nPos+2 );
                     }
                     rOut.WriteUniOrByteChar( cStrDelim, eCharSet );
diff --git a/sc/source/filter/excel/xecontent.cxx b/sc/source/filter/excel/xecontent.cxx
index 006e3cb2c956..17a614b8fdf3 100644
--- a/sc/source/filter/excel/xecontent.cxx
+++ b/sc/source/filter/excel/xecontent.cxx
@@ -425,7 +425,7 @@ XclExpHyperlink::XclExpHyperlink( const XclExpRoot& rRoot, const SvxURLField& rU
         if(nSepPos < nPointPos)
         {
            nSepPos = nPointPos;
-           aTextMark = aTextMark.replaceAt( nSepPos, 1, "!" );
+           aTextMark = aTextMark.replaceAt( nSepPos, 1, u"!" );
         }
 
         if (nSepPos != -1)
@@ -434,7 +434,7 @@ XclExpHyperlink::XclExpHyperlink( const XclExpRoot& rRoot, const SvxURLField& rU
 
             if (aSheetName.indexOf(' ') != -1 && aSheetName[0] != '\'')
             {
-                aTextMark = "'" + aTextMark.replaceAt(nSepPos, 0, "'");
+                aTextMark = "'" + aTextMark.replaceAt(nSepPos, 0, u"'");
             }
         }
         else
diff --git a/sc/source/filter/excel/xicontent.cxx b/sc/source/filter/excel/xicontent.cxx
index c12d39376d56..872632a1c061 100644
--- a/sc/source/filter/excel/xicontent.cxx
+++ b/sc/source/filter/excel/xicontent.cxx
@@ -341,7 +341,7 @@ OUString XclImpHyperlink::ReadEmbeddedData( XclImpStream& rStrm )
                         ScRange aRange;
                         if ((aRange.ParseAny( xTextMark->copy( nSepPos + 1 ), rDoc, formula::FormulaGrammar::CONV_XL_R1C1)
                                         & ScRefFlags::VALID) == ScRefFlags::ZERO)
-                            xTextMark.reset( new OUString( xTextMark->replaceAt( nSepPos, 1, OUString( '.' ))));
+                            xTextMark.reset( new OUString( xTextMark->replaceAt( nSepPos, 1, rtl::OUStringChar( '.' ))));
                     }
                 }
             }
diff --git a/sc/source/filter/excel/xiescher.cxx b/sc/source/filter/excel/xiescher.cxx
index c1749c310ab6..298517b0f5b0 100644
--- a/sc/source/filter/excel/xiescher.cxx
+++ b/sc/source/filter/excel/xiescher.cxx
@@ -2111,7 +2111,7 @@ void XclImpTbxObjBase::ConvertLabel( ScfPropertySet& rPropSet ) const
         {
             sal_Int32 nPos = aLabel.indexOf( static_cast< sal_Unicode >( maTextData.maData.mnShortcut ) );
             if( nPos != -1 )
-                aLabel = aLabel.replaceAt( nPos, 0, "~" );
+                aLabel = aLabel.replaceAt( nPos, 0, u"~" );
         }
         rPropSet.SetStringProperty( "Label", aLabel );
 
diff --git a/sc/source/filter/ftools/ftools.cxx b/sc/source/filter/ftools/ftools.cxx
index d82b84a2eb60..9605dc7a46f7 100644
--- a/sc/source/filter/ftools/ftools.cxx
+++ b/sc/source/filter/ftools/ftools.cxx
@@ -152,10 +152,10 @@ OUString ScfTools::ConvertToScDefinedName(const OUString& rName )
         u'_');
     sal_Int32 nLen = sName.getLength();
     if( nLen && !ScCompiler::IsCharFlagAllConventions( sName, 0, ScCharFlags::CharName ) )
-        sName = sName.replaceAt( 0, 1, "_" );
+        sName = sName.replaceAt( 0, 1, u"_" );
     for( sal_Int32 nPos = 1; nPos < nLen; ++nPos )
         if( !ScCompiler::IsCharFlagAllConventions( sName, nPos, ScCharFlags::Name ) )
-            sName = sName.replaceAt( nPos, 1, "_" );
+            sName = sName.replaceAt( nPos, 1, u"_" );
     return sName;
 }
 
diff --git a/sc/source/filter/oox/formulabase.cxx b/sc/source/filter/oox/formulabase.cxx
index 3cb012bda7c8..2dcc513f21a9 100644
--- a/sc/source/filter/oox/formulabase.cxx
+++ b/sc/source/filter/oox/formulabase.cxx
@@ -1566,7 +1566,7 @@ OUString FormulaProcessorBase::generateApiString( const OUString& rString )
     OUString aRetString = rString;
     sal_Int32 nQuotePos = aRetString.getLength();
     while( (nQuotePos = aRetString.lastIndexOf( '"', nQuotePos )) >= 0 )
-        aRetString = aRetString.replaceAt( nQuotePos, 1, "\"\"" );
+        aRetString = aRetString.replaceAt( nQuotePos, 1, u"\"\"" );
     return "\"" + aRetString + "\"";
 }
 
diff --git a/sc/source/filter/oox/worksheetbuffer.cxx b/sc/source/filter/oox/worksheetbuffer.cxx
index c4daa9cd98bd..a00f6cb6cc78 100644
--- a/sc/source/filter/oox/worksheetbuffer.cxx
+++ b/sc/source/filter/oox/worksheetbuffer.cxx
@@ -134,7 +134,7 @@ void WorksheetBuffer::convertSheetNameRef( OUString& sSheetNameRef ) const
         ScRange aRange;
         if ((aRange.ParseAny( sSheetNameRef.copy( nSepPos + 1 ), getScDocument(),
                         formula::FormulaGrammar::CONV_XL_R1C1) & ScRefFlags::VALID) == ScRefFlags::ZERO)
-            sSheetNameRef = sSheetNameRef.replaceAt( nSepPos, 1, OUString( '.' ) );
+            sSheetNameRef = sSheetNameRef.replaceAt( nSepPos, 1, rtl::OUStringChar( '.' ) );
     }
     // #i66592# convert sheet names that have been renamed on import
     OUString aSheetName = sSheetNameRef.copy( 1, nSepPos - 1 );
diff --git a/sc/source/filter/oox/worksheethelper.cxx b/sc/source/filter/oox/worksheethelper.cxx
index a5fc023f8a99..40a99cdb444b 100644
--- a/sc/source/filter/oox/worksheethelper.cxx
+++ b/sc/source/filter/oox/worksheethelper.cxx
@@ -1034,7 +1034,7 @@ OUString WorksheetGlobals::getHyperlinkUrl( const HyperlinkModel& rHyperlink ) c
                 if ((aRange.ParseAny( aUrl.copy( nSepPos + 1 ), rDoc.getDoc(),
                                 formula::FormulaGrammar::CONV_XL_R1C1)
                       & ScRefFlags::VALID) == ScRefFlags::ZERO)
-                    aUrl = aUrl.replaceAt( nSepPos, 1, OUString( '.' ) );
+                    aUrl = aUrl.replaceAt( nSepPos, 1, rtl::OUStringChar( '.' ) );
             }
             // #i66592# convert sheet names that have been renamed on import
             OUString aSheetName = aUrl.copy( 1, nSepPos - 1 );
diff --git a/sc/source/ui/Accessibility/AccessibleCell.cxx b/sc/source/ui/Accessibility/AccessibleCell.cxx
index ed1dbd8ebeda..654dfe84ef67 100644
--- a/sc/source/ui/Accessibility/AccessibleCell.cxx
+++ b/sc/source/ui/Accessibility/AccessibleCell.cxx
@@ -457,7 +457,7 @@ void ScAccessibleCell::AddRelation(const ScRange& rRange,
     pRelationSet->AddRelation(aRelation);
 }
 
-static OUString ReplaceOneChar(const OUString& oldOUString, std::u16string_view replacedChar, const OUString& replaceStr)
+static OUString ReplaceOneChar(const OUString& oldOUString, std::u16string_view replacedChar, std::u16string_view replaceStr)
 {
     int iReplace = oldOUString.lastIndexOf(replacedChar);
     OUString aRet = oldOUString;
@@ -471,11 +471,11 @@ static OUString ReplaceOneChar(const OUString& oldOUString, std::u16string_view
 
 static OUString ReplaceFourChar(const OUString& oldOUString)
 {
-    OUString aRet = ReplaceOneChar(oldOUString, u"\\", "\\\\");
-    aRet = ReplaceOneChar(aRet, u";", "\\;");
-    aRet = ReplaceOneChar(aRet, u"=", "\\=");
-    aRet = ReplaceOneChar(aRet, u",", "\\,");
-    aRet = ReplaceOneChar(aRet, u":", "\\:");
+    OUString aRet = ReplaceOneChar(oldOUString, u"\\", u"\\\\");
+    aRet = ReplaceOneChar(aRet, u";", u"\\;");
+    aRet = ReplaceOneChar(aRet, u"=", u"\\=");
+    aRet = ReplaceOneChar(aRet, u",", u"\\,");
+    aRet = ReplaceOneChar(aRet, u":", u"\\:");
     return aRet;
 }
 
diff --git a/sc/source/ui/app/inputhdl.cxx b/sc/source/ui/app/inputhdl.cxx
index 8c06ebfcc111..6466c30576f0 100644
--- a/sc/source/ui/app/inputhdl.cxx
+++ b/sc/source/ui/app/inputhdl.cxx
@@ -362,10 +362,10 @@ void ScInputHandler::InitRangeFinder( const OUString& rFormula )
 
     sal_Int32 nColon = aDelimiters.indexOf( ':' );
     if ( nColon != -1 )
-        aDelimiters = aDelimiters.replaceAt( nColon, 1, ""); // Delimiter without colon
+        aDelimiters = aDelimiters.replaceAt( nColon, 1, u""); // Delimiter without colon
     sal_Int32 nDot = aDelimiters.indexOf(cSheetSep);
     if ( nDot != -1 )
-        aDelimiters = aDelimiters.replaceAt( nDot, 1 , ""); // Delimiter without dot
+        aDelimiters = aDelimiters.replaceAt( nDot, 1 , u""); // Delimiter without dot
 
     const sal_Unicode* pChar = rFormula.getStr();
     sal_Int32 nLen = rFormula.getLength();
diff --git a/sc/source/ui/docshell/docsh4.cxx b/sc/source/ui/docshell/docsh4.cxx
index 289c66f756d9..a97a47ecc6ec 100644
--- a/sc/source/ui/docshell/docsh4.cxx
+++ b/sc/source/ui/docshell/docsh4.cxx
@@ -1213,7 +1213,7 @@ void ScDocShell::Execute( SfxRequest& rReq )
                 }
                 else if ( (nPos = aLangText.indexOf(aDocLangPrefix)) != -1 )
                 {
-                    aLangText = aLangText.replaceAt(nPos, aDocLangPrefix.getLength(), "");
+                    aLangText = aLangText.replaceAt(nPos, aDocLangPrefix.getLength(), u"");
 
                     if ( aLangText == "LANGUAGE_NONE" )
                     {
@@ -1243,12 +1243,12 @@ void ScDocShell::Execute( SfxRequest& rReq )
                 else if (-1 != (nPos = aLangText.indexOf( aSelectionLangPrefix )))
                 {
                     bSelection = true;
-                    aLangText = aLangText.replaceAt( nPos, aSelectionLangPrefix.getLength(), "" );
+                    aLangText = aLangText.replaceAt( nPos, aSelectionLangPrefix.getLength(), u"" );
                 }
                 else if (-1 != (nPos = aLangText.indexOf( aParagraphLangPrefix )))
                 {
                     bParagraph = true;
-                    aLangText = aLangText.replaceAt( nPos, aParagraphLangPrefix.getLength(), "" );
+                    aLangText = aLangText.replaceAt( nPos, aParagraphLangPrefix.getLength(), u"" );
                 }
 
                 if (bSelection || bParagraph)
@@ -1345,7 +1345,7 @@ void ScDocShell::Execute( SfxRequest& rReq )
             sal_Int32 nPos = 0;
             if(-1 != (nPos = sApplyText.indexOf( sSpellingRule )))
             {
-                sApplyText = sApplyText.replaceAt(nPos, sSpellingRule.getLength(), "");
+                sApplyText = sApplyText.replaceAt(nPos, sSpellingRule.getLength(), u"");
                 pEditView->InsertText( sApplyText );
             }
         }
diff --git a/sc/source/ui/docshell/impex.cxx b/sc/source/ui/docshell/impex.cxx
index 72dad3cc6410..5d8e755c18f6 100644
--- a/sc/source/ui/docshell/impex.cxx
+++ b/sc/source/ui/docshell/impex.cxx
@@ -890,7 +890,7 @@ static void lcl_DoubleEscapeChar( OUString& rString, sal_Unicode cStr )
     sal_Int32 n = 0;
     while( ( n = rString.indexOf( cStr, n ) ) != -1 )
     {
-        rString = rString.replaceAt( n, 0, OUString(cStr) );
+        rString = rString.replaceAt( n, 0, rtl::OUStringChar(cStr) );
         n += 2;
     }
 }
diff --git a/sc/source/ui/miscdlgs/acredlin.cxx b/sc/source/ui/miscdlgs/acredlin.cxx
index 554bf801d1de..1d0ab68a3313 100644
--- a/sc/source/ui/miscdlgs/acredlin.cxx
+++ b/sc/source/ui/miscdlgs/acredlin.cxx
@@ -1680,7 +1680,7 @@ namespace
                 {
                     // cut out alignment string
                     aStr = rExtraString.copy(nPos, n2 - nPos + 1);
-                    rExtraString = rExtraString.replaceAt(nPos, n2 - nPos + 1, "");
+                    rExtraString = rExtraString.replaceAt(nPos, n2 - nPos + 1, u"");
                     aStr = aStr.copy( n1-nPos+1 );
                 }
             }
diff --git a/sc/source/ui/navipi/content.cxx b/sc/source/ui/navipi/content.cxx
index c19c6b87a6fd..1b30df7f2406 100644
--- a/sc/source/ui/navipi/content.cxx
+++ b/sc/source/ui/navipi/content.cxx
@@ -943,7 +943,7 @@ static OUString lcl_NoteString( const ScPostIt& rNote )
     OUString aText = rNote.GetText();
     sal_Int32 nAt;
     while ( (nAt = aText.indexOf( '\n' )) != -1 )
-        aText = aText.replaceAt( nAt, 1, " " );
+        aText = aText.replaceAt( nAt, 1, u" " );
     return aText;
 }
 
diff --git a/sc/source/ui/unoobj/addruno.cxx b/sc/source/ui/unoobj/addruno.cxx
index 0e307071d9ef..520f110a6f5d 100644
--- a/sc/source/ui/unoobj/addruno.cxx
+++ b/sc/source/ui/unoobj/addruno.cxx
@@ -196,7 +196,7 @@ void SAL_CALL ScAddressConversionObj::setPropertyValue( const OUString& aPropert
                 sal_Int32 nColon = aUIString.lastIndexOf( ':' );
                 if ( nColon >= 0 && nColon < aUIString.getLength() - 1 &&
                      aUIString[nColon+1] == '.' )
-                    aUIString = aUIString.replaceAt( nColon+1, 1, "" );
+                    aUIString = aUIString.replaceAt( nColon+1, 1, u"" );
             }
 
             //  parse the rest like a UI string
diff --git a/sc/source/ui/unoobj/chart2uno.cxx b/sc/source/ui/unoobj/chart2uno.cxx
index 6ec3a1e633d1..40e72bbfc8d9 100644
--- a/sc/source/ui/unoobj/chart2uno.cxx
+++ b/sc/source/ui/unoobj/chart2uno.cxx
@@ -2261,7 +2261,7 @@ OUString SAL_CALL ScChart2DataProvider::convertRangeFromXML( const OUString& sXM
                 sal_Int32 nIndex = ScRangeStringConverter::IndexOf( sToken, ':', 0 );
                 if ( nIndex >= 0 && nIndex < aUIString.getLength() - 1 &&
                         aUIString[nIndex + 1] == '.' )
-                    aUIString = aUIString.replaceAt( nIndex + 1, 1, "" );
+                    aUIString = aUIString.replaceAt( nIndex + 1, 1, u"" );
 
                 if ( aUIString[0] == '.' )
                     aUIString = aUIString.copy( 1 );
diff --git a/sc/source/ui/view/output2.cxx b/sc/source/ui/view/output2.cxx
index 7c8758bb75e1..ba4a1b13a795 100644
--- a/sc/source/ui/view/output2.cxx
+++ b/sc/source/ui/view/output2.cxx
@@ -536,7 +536,7 @@ bool ScDrawStringsVars::SetText( const ScRefCellValue& rCell )
                     {
                         nRepeatChar = aString[ nRepeatPos + 1 ];
                         // delete placeholder and char to repeat
-                        aString = aString.replaceAt( nRepeatPos, 2, "" );
+                        aString = aString.replaceAt( nRepeatPos, 2, u"" );
                         // Do not cache/reuse a repeat-filled string, column
                         // widths or fonts or sizes may differ.
                         maLastCell.clear();
diff --git a/sc/source/ui/view/viewfunc.cxx b/sc/source/ui/view/viewfunc.cxx
index 339c70d30aac..af151534c018 100644
--- a/sc/source/ui/view/viewfunc.cxx
+++ b/sc/source/ui/view/viewfunc.cxx
@@ -383,7 +383,7 @@ void ScViewFunc::EnterData( SCCOL nCol, SCROW nRow, SCTAB nTab,
             {
                 ++nIndex;
             }
-            OUString aString = rString.replaceAt( 1, nIndex - 1, "" );
+            OUString aString = rString.replaceAt( 1, nIndex - 1, u"" );
 
             // if the remaining part without the leading '+' or '-' character
             // is non-empty and not a number, handle as formula
@@ -2745,7 +2745,7 @@ void ScViewFunc::ChangeNumFmtDecimals( bool bIncrement )
           for ( sal_Int32 i=1 ; i<sExponentialStandardFormat.getLength() ; i++ )
           {
             if ( sExponentialStandardFormat[i] >= '1' && sExponentialStandardFormat[i] <= '9' )
-              sExponentialStandardFormat = sExponentialStandardFormat.replaceAt( i, 1, "0" );
+              sExponentialStandardFormat = sExponentialStandardFormat.replaceAt( i, 1, u"0" );
           }
           aOut = aOut.copy( 0, nIndexE ); // remove exponential part
         }