fdo#86023 - O[U]String needs a 'clear' method

Added clear() method to OString and OUString class, Updated appropriate call-sites.

Change-Id: I0ba97fa6dc7af3e31b605953089a4e8e9c3e61ac
Signed-off-by: Stephan Bergmann <sbergman@redhat.com>

6 files changed, 19 insertions, 19 deletions

diff --git a/filter/source/config/cache/cacheupdatelistener.cxx b/filter/source/config/cache/cacheupdatelistener.cxx
index 9bd5fb8720a7..9e222f58413c 100644
--- a/filter/source/config/cache/cacheupdatelistener.cxx
+++ b/filter/source/config/cache/cacheupdatelistener.cxx
@@ -126,8 +126,8 @@ void SAL_CALL  CacheUpdateListener::changesOccurred(const css::util::ChangesEven
         if ( ! ::utl::splitLastFromConfigurationPath(sOrgPath, sTempPath, sProperty))
         {
             sNode     = sLocale;
-            sProperty = OUString();
-            sLocale   = OUString();
+            sProperty.clear();
+            sLocale.clear();
         }
         else
         {
@@ -136,7 +136,7 @@ void SAL_CALL  CacheUpdateListener::changesOccurred(const css::util::ChangesEven
             {
                 sNode     = sProperty;
                 sProperty = sLocale;
-                sLocale   = OUString();
+                sLocale.clear();
             }
         }
 
diff --git a/filter/source/config/cache/typedetection.cxx b/filter/source/config/cache/typedetection.cxx
index 4919fbaa1372..a7d306892eda 100644
--- a/filter/source/config/cache/typedetection.cxx
+++ b/filter/source/config/cache/typedetection.cxx
@@ -453,7 +453,7 @@ OUString SAL_CALL TypeDetection::queryTypeByDescriptor(css::uno::Sequence< css::
             "filter.config",
             "caught Exception \"" << e.Message
                 << "\" while querying type of <" << sURL << ">");
-        sType = OUString();
+        sType.clear();
     }
 
     // adapt media descriptor, so it contains the right values
@@ -546,7 +546,7 @@ void TypeDetection::impl_checkResultsAndAddBestFilter(utl::MediaDescriptor& rDes
     // - or to any other filter if no preferred filter was set.
     // Note: It's an optimization only!
     // It's not guaranteed, that such preferred filter exists.
-    sFilter = OUString();
+    sFilter.clear();
     try
     {
         // SAFE ->
@@ -569,7 +569,7 @@ void TypeDetection::impl_checkResultsAndAddBestFilter(utl::MediaDescriptor& rDes
 
     // d)
     // Search for any import(!) filter, which is registered for this type.
-    sFilter = OUString();
+    sFilter.clear();
     try
     {
         // SAFE ->
@@ -610,7 +610,7 @@ void TypeDetection::impl_checkResultsAndAddBestFilter(utl::MediaDescriptor& rDes
             aLock.clear();
             // <- SAFE
 
-            sFilter = OUString();
+            sFilter.clear();
         }
 
         if (!sFilter.isEmpty())
@@ -656,7 +656,7 @@ bool TypeDetection::impl_getPreselectionForType(
     }
     catch(const css::container::NoSuchElementException&)
     {
-        sType = OUString();
+        sType.clear();
         bBreakDetection = true;
     }
 
@@ -879,7 +879,7 @@ OUString TypeDetection::impl_detectTypeFlatAndDeep(      utl::MediaDescriptor& r
 {
     // reset it everytimes, so the outside code can distinguish between
     // a set and a not set value.
-    rLastChance = OUString();
+    rLastChance.clear();
     rUsedDetectors.clear();
 
     // step over all possible types for this URL.
@@ -1046,7 +1046,7 @@ OUString TypeDetection::impl_askDetectService(const OUString&               sDet
             // Thrown exceptions mostly will end in crash recovery ...
             // But might be we find another deep detection service which can detect the same
             // document without a problem .-)
-            sDeepType = OUString();
+            sDeepType.clear();
         }
 
     // seek to 0 is an optional feature to be more robust against
diff --git a/filter/source/msfilter/svdfppt.cxx b/filter/source/msfilter/svdfppt.cxx
index 4cc9956a3c4a..d0b2103485f3 100644
--- a/filter/source/msfilter/svdfppt.cxx
+++ b/filter/source/msfilter/svdfppt.cxx
@@ -5227,7 +5227,7 @@ void PPTStyleTextPropReader::Init( SvStream& rIn, SdrPowerPointImport& rMan, con
                         if ( nLen )
                             aCharPropSet.maString = aString.copy( nCharAnzRead, nLen );
                         else if ( bEmptyParaPossible )
-                            aCharPropSet.maString = OUString();
+                            aCharPropSet.maString.clear();
                         if ( nLen || bEmptyParaPossible )
                             aCharPropList.push_back( new PPTCharPropSet( aCharPropSet, nCurrentPara ) );
                         nCurrentPara++;
@@ -5270,7 +5270,7 @@ void PPTStyleTextPropReader::Init( SvStream& rIn, SdrPowerPointImport& rMan, con
         if ( !aCharPropList.empty() && ( aCharPropList.back()->mnParagraph != nCurrentPara ) )
         {
             PPTCharPropSet* pCharPropSet = new PPTCharPropSet( *aCharPropList.back(), nCurrentPara );
-            pCharPropSet->maString = OUString();
+            (pCharPropSet->maString).clear();
             pCharPropSet->mnOriginalTextPos = nStringLen - 1;
             aCharPropList.push_back( pCharPropSet );
         }
@@ -6807,7 +6807,7 @@ PPTTextObj::PPTTextObj( SvStream& rIn, SdrPowerPointImport& rSdrPowerPointImport
                                             if ( aString[nCount] == 0x2a )
                                             {
                                                 sal_uInt32 nBehind = aString.getLength() - ( nCount + 1 );
-                                                pSet->maString = OUString();
+                                                (pSet->maString).clear();
                                                 if ( nBehind )
                                                 {
                                                     PPTCharPropSet* pNewCPS = new PPTCharPropSet( *pSet );
@@ -6906,7 +6906,7 @@ PPTTextObj::PPTTextObj( SvStream& rIn, SdrPowerPointImport& rSdrPowerPointImport
                                                                     pCurrent->mpFieldItem = new SvxFieldItem( SvxURLField( pField->GetURL(), aRepresentation, SVXURLFORMAT_REPR ), EE_FEATURE_FIELD );
                                                                     nHyperLenLeft = 0;
                                                                 }
-                                                                pCurrent->maString = OUString();
+                                                                (pCurrent->maString).clear();
                                                                 pCurrent->SetColor( PPT_COLSCHEME_A_UND_HYPERLINK );
                                                             }
                                                             nIdx++;
diff --git a/filter/source/pdf/pdfexport.cxx b/filter/source/pdf/pdfexport.cxx
index 635d64e14234..ffa9e42d87d8 100644
--- a/filter/source/pdf/pdfexport.cxx
+++ b/filter/source/pdf/pdfexport.cxx
@@ -717,8 +717,8 @@ bool PDFExport::Export( const OUString& rFile, const Sequence< PropertyValue >&
             // after this point we don't need the legacy clear passwords anymore
             // however they are still inside the passed filter data sequence
             // which is sadly out out our control
-            aPermissionPassword = OUString();
-            aOpenPassword = OUString();
+            aPermissionPassword.clear();
+            aOpenPassword.clear();
 
             /*
             * FIXME: the entries are only implicitly defined by the resource file. Should there
diff --git a/filter/source/xsltdialog/typedetectionimport.cxx b/filter/source/xsltdialog/typedetectionimport.cxx
index 781641e0a03a..386ab1b2b59f 100644
--- a/filter/source/xsltdialog/typedetectionimport.cxx
+++ b/filter/source/xsltdialog/typedetectionimport.cxx
@@ -279,7 +279,7 @@ void SAL_CALL TypeDetectionImporter::startElement( const OUString& aName, const
         if( aName == sValue )
         {
             eNewState = e_Value;
-            maValue = OUString();
+            maValue.clear();
         }
     }
 
diff --git a/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx b/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx
index 2153d115a7a4..fc0da394f46f 100644
--- a/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx
+++ b/filter/source/xsltdialog/xmlfiltersettingsdialog.cxx
@@ -431,7 +431,7 @@ bool XMLFilterSettingsDialog::insertOrEdit( filter_info_impl* pNewInfo, const fi
         {
             if( pOldInfo->maType == pOldInfo->maFilterName )
             {
-                pNewInfo->maType = OUString();
+                (pNewInfo->maType).clear();
             }
         }
 
@@ -1163,7 +1163,7 @@ void XMLFilterSettingsDialog::initFilterList()
                                     Sequence< OUString > aExtensions;
                                     if( pValues2->Value >>= aExtensions )
                                     {
-                                        pTempFilter->maExtension = OUString();
+                                        (pTempFilter->maExtension).clear();
 
                                         sal_Int32 nCount3( aExtensions.getLength() );
                                         OUString* pExtensions = aExtensions.getArray();