use more string_view

Change-Id: Ie826234aa9064b08b8f0647738b57c47ac0ed91a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/141369
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

17 files changed, 186 insertions, 179 deletions

diff --git a/chart2/qa/extras/xshape/chart2xshape.cxx b/chart2/qa/extras/xshape/chart2xshape.cxx
index bf2e381a75e5..173974d6bce4 100644
--- a/chart2/qa/extras/xshape/chart2xshape.cxx
+++ b/chart2/qa/extras/xshape/chart2xshape.cxx
@@ -51,22 +51,22 @@ public:
     CPPUNIT_TEST_SUITE_END();
 
 private:
-    void compareAgainstReference(const OUString& rDump, std::u16string_view rReferenceFile);
+    void compareAgainstReference(std::u16string_view rDump, std::u16string_view rReferenceFile);
     OUString getXShapeDumpString();
     xmlDocUniquePtr getXShapeDumpXmlDoc();
 };
 
 namespace
 {
-bool checkDumpAgainstFile(const OUString& rDump, std::u16string_view aFilePath,
+bool checkDumpAgainstFile(std::u16string_view rDump, std::u16string_view aFilePath,
                           char const* toleranceFile)
 {
     OString aOFile = OUStringToOString(aFilePath, RTL_TEXTENCODING_UTF8);
 
-    CPPUNIT_ASSERT_MESSAGE("dump is empty", !rDump.isEmpty());
+    CPPUNIT_ASSERT_MESSAGE("dump is empty", !rDump.empty());
 
     OString aDump = OUStringToOString(rDump, RTL_TEXTENCODING_UTF8);
-    return doXMLDiff(aOFile.getStr(), aDump.getStr(), static_cast<int>(rDump.getLength()),
+    return doXMLDiff(aOFile.getStr(), aDump.getStr(), static_cast<int>(rDump.size()),
                      toleranceFile);
 }
 }
@@ -86,7 +86,7 @@ xmlDocUniquePtr Chart2XShapeTest::getXShapeDumpXmlDoc()
     return xmlDocUniquePtr(xmlParseDoc(reinterpret_cast<const xmlChar*>(aXmlDump.getStr())));
 }
 
-void Chart2XShapeTest::compareAgainstReference(const OUString& rDump,
+void Chart2XShapeTest::compareAgainstReference(std::u16string_view rDump,
                                                std::u16string_view rReferenceFile)
 {
     checkDumpAgainstFile(
diff --git a/forms/source/component/Button.cxx b/forms/source/component/Button.cxx
index 52818361c2f2..28cac777ea43 100644
--- a/forms/source/component/Button.cxx
+++ b/forms/source/component/Button.cxx
@@ -30,6 +30,7 @@
 #include <comphelper/basicio.hxx>
 #include <comphelper/property.hxx>
 #include <o3tl/any.hxx>
+#include <o3tl/string_view.hxx>
 #include <comphelper/diagnose_ex.hxx>
 #include <tools/debug.hxx>
 #include <tools/urlobj.hxx>
@@ -652,10 +653,11 @@ void SAL_CALL OButtonControl::propertyChange( const PropertyChangeEvent& _rEvent
 
 namespace
 {
-    bool isFormControllerURL( const OUString& _rURL )
+    bool isFormControllerURL( std::u16string_view _rURL )
     {
-        return  ( _rURL.getLength() > RTL_CONSTASCII_LENGTH( ".uno:FormController/" ) )
-            &&  ( _rURL.startsWith( ".uno:FormController/" ) );
+        static constexpr std::u16string_view PREFIX = u".uno:FormController/";
+        return  ( _rURL.size() > PREFIX.size() )
+            &&  ( o3tl::starts_with(_rURL, PREFIX ) );
     }
 }
 
diff --git a/lingucomponent/source/lingutil/lingutil.cxx b/lingucomponent/source/lingutil/lingutil.cxx
index f0ab84026174..5e931f894ad2 100644
--- a/lingucomponent/source/lingutil/lingutil.cxx
+++ b/lingucomponent/source/lingutil/lingutil.cxx
@@ -63,7 +63,7 @@ OString Win_AddLongPathPrefix( const OString &rPathName )
 // find old style dictionaries in system directories
 static void GetOldStyleDicsInDir(
     OUString const & aSystemDir, OUString const & aFormatName,
-    OUString const & aSystemSuffix, OUString const & aSystemPrefix,
+    std::u16string_view aSystemSuffix, std::u16string_view aSystemPrefix,
     std::set< OUString >& aDicLangInUse,
     std::vector< SvtLinguConfigDictionaryEntry >& aRes )
 {
@@ -82,9 +82,9 @@ static void GetOldStyleDicsInDir(
             sal_Int32 nStartIndex = sPath.lastIndexOf('/') + 1;
             if (!sPath.match(aSystemPrefix, nStartIndex))
                 continue;
-            OUString sChunk = sPath.copy(nStartIndex + aSystemPrefix.getLength(),
-                sPath.getLength() - aSystemSuffix.getLength() -
-                nStartIndex - aSystemPrefix.getLength());
+            OUString sChunk = sPath.copy(nStartIndex + aSystemPrefix.size(),
+                sPath.getLength() - aSystemSuffix.size() -
+                nStartIndex - aSystemPrefix.size());
             if (sChunk.isEmpty())
                 continue;
 
diff --git a/lotuswordpro/source/filter/lwpfribmark.cxx b/lotuswordpro/source/filter/lwpfribmark.cxx
index f29d4f4c3aeb..f4e35c0d8477 100644
--- a/lotuswordpro/source/filter/lwpfribmark.cxx
+++ b/lotuswordpro/source/filter/lwpfribmark.cxx
@@ -375,7 +375,7 @@ void LwpFribField::RegisterTimeField(const LwpFieldMark* pFieldMark)
 
         std::u16string_view tag = sFormula.subView(0, index);
         if (tag == u"Now()" || tag == u"CreateDate" || tag == u"EditDate")
-            RegisterDateTimeStyle(sFormula.copy(index + 1));
+            RegisterDateTimeStyle(sFormula.subView(index + 1));
     }
 }
 
@@ -388,24 +388,24 @@ void LwpFribField::RegisterTotalTimeStyle()
     m_TimeStyle = pXFStyleManager->AddStyle(std::move(pTimeStyle)).m_pStyle->GetStyleName();
 }
 
-void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
+void LwpFribField::RegisterDateTimeStyle(std::u16string_view sFormula)
 {
     std::unique_ptr<XFDateStyle> pDateStyle;
     std::unique_ptr<XFTimeStyle> pTimeStyle;
     //DATE
-    if (sFormula.getLength() < 2)
+    if (sFormula.size() < 2)
         return;
     if (sFormula[1] == 'F')
     {
-        if (sFormula == "%FLSystemShortDate")
+        if (sFormula == u"%FLSystemShortDate")
         {
             pDateStyle = LwpTools::GetSystemDateStyle(false);
         }
-        else if (sFormula == "%FLSystemLongDate")
+        else if (sFormula == u"%FLSystemLongDate")
         {
             pDateStyle = LwpTools::GetSystemDateStyle(true);
         }
-        else if (sFormula == "%FLISODate1" || sFormula == "%FLYYYY/MM/DD")
+        else if (sFormula == u"%FLISODate1" || sFormula == u"%FLYYYY/MM/DD")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
@@ -414,7 +414,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("/");
             pDateStyle->AddMonthDay();
         }
-        else if (sFormula == "%FLISODate2" || sFormula == "%FLYYYY/MM/DD HH:mm:SS")
+        else if (sFormula == u"%FLISODate2" || sFormula == u"%FLYYYY/MM/DD HH:mm:SS")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
@@ -429,7 +429,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(":");
             pDateStyle->AddSecond();
         }
-        else if (sFormula == "%FLM/D/YY")
+        else if (sFormula == u"%FLM/D/YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
@@ -438,7 +438,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("/");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLMonth D, YYYY")
+        else if (sFormula == u"%FLMonth D, YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(true, true);
@@ -447,7 +447,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLWeekday, Month D, YYYY")
+        else if (sFormula == u"%FLWeekday, Month D, YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -458,7 +458,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLMn D, YYYY")
+        else if (sFormula == u"%FLMn D, YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false, true);
@@ -467,7 +467,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLWday, Mn D, YYYY")
+        else if (sFormula == u"%FLWday, Mn D, YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay(false);
@@ -478,14 +478,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLMn D")
+        else if (sFormula == u"%FLMn D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false, true);
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLWeekday, Mn D")
+        else if (sFormula == u"%FLWeekday, Mn D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -494,7 +494,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLMn D, YY")
+        else if (sFormula == u"%FLMn D, YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false, true);
@@ -503,69 +503,69 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLM/D")
+        else if (sFormula == u"%FLM/D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
             pDateStyle->AddText("/");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLM/YY")
+        else if (sFormula == u"%FLM/YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
             pDateStyle->AddText("/");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLMn YY")
+        else if (sFormula == u"%FLMn YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false, true);
             pDateStyle->AddText(" ");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLWeekday")
+        else if (sFormula == u"%FLWeekday")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
         }
-        else if (sFormula == "%FLWday")
+        else if (sFormula == u"%FLWday")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay(false);
         }
-        else if (sFormula == "%FLMonth")
+        else if (sFormula == u"%FLMonth")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(true, true);
         }
-        else if (sFormula == "%FLMn")
+        else if (sFormula == u"%FLMn")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false, true);
         }
-        else if (sFormula == "%FLD")
+        else if (sFormula == u"%FLD")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLM")
+        else if (sFormula == u"%FLM")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
         }
-        else if (sFormula == "%FLYYYY")
+        else if (sFormula == u"%FLYYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLYY")
+        else if (sFormula == u"%FLYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear(false);
         }
         //chinese version begin
-        else if (sFormula == "%FLYY/M/D")
+        else if (sFormula == u"%FLYY/M/D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear(false);
@@ -574,7 +574,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("-");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLYYYY Month D")
+        else if (sFormula == u"%FLYYYY Month D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
@@ -583,7 +583,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLWeekday, YYYY Month D")
+        else if (sFormula == u"%FLWeekday, YYYY Month D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -594,7 +594,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLYYYY Mn D")
+        else if (sFormula == u"%FLYYYY Mn D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
@@ -603,7 +603,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLWday, YYYY Mn D")
+        else if (sFormula == u"%FLWday, YYYY Mn D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay(false);
@@ -615,7 +615,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddMonthDay(false);
         }
         //next 2 are the same with english version
-        else if (sFormula == "%FLYY Mn D")
+        else if (sFormula == u"%FLYY Mn D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear(false);
@@ -624,21 +624,21 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLYY/M")
+        else if (sFormula == u"%FLYY/M")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
             pDateStyle->AddText("-");
             pDateStyle->AddMonth(false);
         }
-        else if (sFormula == "%FLYY Mn")
+        else if (sFormula == u"%FLYY Mn")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
             pDateStyle->AddText(" ");
             pDateStyle->AddMonth(false, true);
         }
-        else if (sFormula == "%FLeeeeoa" || sFormula == "%FLffffooaa" || sFormula == "%FLEEEEOA")
+        else if (sFormula == u"%FLeeeeoa" || sFormula == u"%FLffffooaa" || sFormula == u"%FLEEEEOA")
         {
             pDateStyle.reset(new XFDateStyle);
             OUString sText;
@@ -652,7 +652,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             sText = OUString(u'\x65e5');
             pDateStyle->AddText(sText);
         }
-        else if (sFormula == "%FLoa" || sFormula == "%FLooaa" || sFormula == "%FLOA")
+        else if (sFormula == u"%FLoa" || sFormula == u"%FLooaa" || sFormula == u"%FLOA")
         {
             pDateStyle.reset(new XFDateStyle);
             OUString sText;
@@ -663,7 +663,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             sText = OUString(u'\x65e5');
             pDateStyle->AddText(sText);
         }
-        else if (sFormula == "%FLYYYY/M/D" || sFormula == "%FLGGGG/od/ad")
+        else if (sFormula == u"%FLYYYY/M/D" || sFormula == u"%FLGGGG/od/ad")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
@@ -672,7 +672,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("-");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%FLYY.M.D")
+        else if (sFormula == u"%FLYY.M.D")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear(false);
@@ -683,7 +683,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
         }
         //chinese version end
         //other version begin
-        else if (sFormula == "%FLWeekday, Month DD, YYYY")
+        else if (sFormula == u"%FLWeekday, Month DD, YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -694,7 +694,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLYYYY/MM/DD")
+        else if (sFormula == u"%FLYYYY/MM/DD")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -705,7 +705,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLD/M/YY")
+        else if (sFormula == u"%FLD/M/YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
@@ -714,7 +714,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("/");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLD Month YYYY")
+        else if (sFormula == u"%FLD Month YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
@@ -723,7 +723,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLDD Month YYYY")
+        else if (sFormula == u"%FLDD Month YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay();
@@ -732,7 +732,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLWeekday, D Month YYYY")
+        else if (sFormula == u"%FLWeekday, D Month YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -743,7 +743,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLWeekday, DD Month YYYY")
+        else if (sFormula == u"%FLWeekday, DD Month YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -754,7 +754,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLD Mn YYYY")
+        else if (sFormula == u"%FLD Mn YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
@@ -763,7 +763,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLWday, D Mn YYYY")
+        else if (sFormula == u"%FLWday, D Mn YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay(false);
@@ -774,7 +774,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLWday, DD Mn YYYY")
+        else if (sFormula == u"%FLWday, DD Mn YYYY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay(false);
@@ -785,21 +785,21 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%FLD Mn")
+        else if (sFormula == u"%FLD Mn")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
             pDateStyle->AddText(" ");
             pDateStyle->AddMonth(false, true);
         }
-        else if (sFormula == "%FLDD Mn")
+        else if (sFormula == u"%FLDD Mn")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay();
             pDateStyle->AddText(" ");
             pDateStyle->AddMonth(false, true);
         }
-        else if (sFormula == "%FLWeekday, D Mn")
+        else if (sFormula == u"%FLWeekday, D Mn")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -808,7 +808,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonth(false, true);
         }
-        else if (sFormula == "%FLWeekday, DD Mn")
+        else if (sFormula == u"%FLWeekday, DD Mn")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -817,7 +817,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonth(false, true);
         }
-        else if (sFormula == "%FLD Mn YY")
+        else if (sFormula == u"%FLD Mn YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
@@ -826,7 +826,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLDD Mn YY")
+        else if (sFormula == u"%FLDD Mn YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay();
@@ -835,21 +835,21 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLD/M")
+        else if (sFormula == u"%FLD/M")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
             pDateStyle->AddText("/");
             pDateStyle->AddMonth(false);
         }
-        else if (sFormula == "%FLDD/MM")
+        else if (sFormula == u"%FLDD/MM")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay();
             pDateStyle->AddText("/");
             pDateStyle->AddMonth();
         }
-        else if (sFormula == "%FLDD/MM/YY")
+        else if (sFormula == u"%FLDD/MM/YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay();
@@ -858,7 +858,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("/");
             pDateStyle->AddYear(false);
         }
-        else if (sFormula == "%FLMM/YY")
+        else if (sFormula == u"%FLMM/YY")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth();
@@ -867,11 +867,11 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
         }
         //other version end
         //TIME
-        else if (sFormula == "%FLSystemTime")
+        else if (sFormula == u"%FLSystemTime")
         {
             pTimeStyle = LwpTools::GetSystemTimeStyle();
         }
-        else if (sFormula == "%FLISOTime1" || sFormula == "%FLH:mm:SS")
+        else if (sFormula == u"%FLISOTime1" || sFormula == u"%FLH:mm:SS")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
@@ -880,7 +880,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(":");
             pTimeStyle->AddSecond();
         }
-        else if (sFormula == "%FLH:mm ampm")
+        else if (sFormula == u"%FLH:mm ampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
@@ -889,14 +889,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(" ");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%FLH:mm")
+        else if (sFormula == u"%FLH:mm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
             pTimeStyle->AddText(":");
             pTimeStyle->AddMinute();
         }
-        else if (sFormula == "%FLH:mm:SS ampm")
+        else if (sFormula == u"%FLH:mm:SS ampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
@@ -907,7 +907,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(" ");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%FLH:mm:SS")
+        else if (sFormula == u"%FLH:mm:SS")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
@@ -916,36 +916,36 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(":");
             pTimeStyle->AddSecond();
         }
-        else if (sFormula == "%FLH ampm")
+        else if (sFormula == u"%FLH ampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
             pTimeStyle->AddText(" ");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%FLH")
+        else if (sFormula == u"%FLH")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
         }
-        else if (sFormula == "%FLmm")
+        else if (sFormula == u"%FLmm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddMinute();
         }
-        else if (sFormula == "%FLSS")
+        else if (sFormula == u"%FLSS")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddSecond();
         }
-        else if (sFormula == "%FLampm")
+        else if (sFormula == u"%FLampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->SetAmPm(true);
         }
         //chinese version begin
-        else if (sFormula == "%FLjF" || sFormula == "%FLJFF" || sFormula == "%FLjjF"
-                 || sFormula == "%FLJJFF ")
+        else if (sFormula == u"%FLjF" || sFormula == u"%FLJFF" || sFormula == u"%FLjjF"
+                 || sFormula == u"%FLJJFF ")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
@@ -956,7 +956,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             sText = OUString(u'\x5206');
             pTimeStyle->AddText(sText);
         }
-        else if (sFormula == "%FLjjjF" || sFormula == "%FLJJJFF")
+        else if (sFormula == u"%FLjjjF" || sFormula == u"%FLJJJFF")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->SetAmPm(true);
@@ -970,7 +970,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
         }
         //chinese version end
         //other version begin
-        else if (sFormula == "%FLHH:mm ampm")
+        else if (sFormula == u"%FLHH:mm ampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
@@ -979,14 +979,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(" ");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%FLHH ampm")
+        else if (sFormula == u"%FLHH ampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
             pTimeStyle->AddText(" ");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%FLHH:mm:SS ampm")
+        else if (sFormula == u"%FLHH:mm:SS ampm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
@@ -997,14 +997,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(" ");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%FLHH:mm")
+        else if (sFormula == u"%FLHH:mm")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
             pTimeStyle->AddText(":");
             pTimeStyle->AddMinute();
         }
-        else if (sFormula == "%FLHH:mm:SS")
+        else if (sFormula == u"%FLHH:mm:SS")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
@@ -1017,11 +1017,11 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
     }
     else if (sFormula[1] == 'D')
     {
-        if (sFormula == "%Da")
+        if (sFormula == u"%Da")
         {
             pDateStyle = LwpTools::GetSystemDateStyle(false);
         }
-        else if (sFormula == "%DB" || sFormula == "%Db")
+        else if (sFormula == u"%DB" || sFormula == u"%Db")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(true, true);
@@ -1030,7 +1030,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%Dc" || sFormula == "%DC")
+        else if (sFormula == u"%Dc" || sFormula == u"%DC")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
@@ -1039,7 +1039,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%Dd" || sFormula == "%DD")
+        else if (sFormula == u"%Dd" || sFormula == u"%DD")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -1050,14 +1050,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(", ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%DE" || sFormula == "%De")
+        else if (sFormula == u"%DE" || sFormula == u"%De")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(true, true);
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%Df" || sFormula == "%DF")
+        else if (sFormula == u"%Df" || sFormula == u"%DF")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddWeekDay();
@@ -1066,14 +1066,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%Dg")
+        else if (sFormula == u"%Dg")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
             pDateStyle->AddText("/");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%Dh")
+        else if (sFormula == u"%Dh")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(false);
@@ -1082,14 +1082,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText("/");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%Di" || sFormula == "%DI")
+        else if (sFormula == u"%Di" || sFormula == u"%DI")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
             pDateStyle->AddText(".");
             pDateStyle->AddMonth(true, true);
         }
-        else if (sFormula == "%Dj" || sFormula == "%DJ")
+        else if (sFormula == u"%Dj" || sFormula == u"%DJ")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay(false);
@@ -1098,7 +1098,7 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%Dk" || sFormula == "%DK")
+        else if (sFormula == u"%Dk" || sFormula == u"%DK")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddYear();
@@ -1107,14 +1107,14 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pDateStyle->AddText(" ");
             pDateStyle->AddMonthDay(false);
         }
-        else if (sFormula == "%DL" || sFormula == "%Dl")
+        else if (sFormula == u"%DL" || sFormula == u"%Dl")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonth(true, true);
             pDateStyle->AddText(",");
             pDateStyle->AddYear();
         }
-        else if (sFormula == "%Dm")
+        else if (sFormula == u"%Dm")
         {
             pDateStyle.reset(new XFDateStyle);
             pDateStyle->AddMonthDay();
@@ -1126,14 +1126,15 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
     }
     else if (sFormula[1] == 'T')
     {
-        if (sFormula == "%T1")
+        if (sFormula == u"%T1")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
             pTimeStyle->AddText(":");
             pTimeStyle->AddMinute();
         }
-        else if (sFormula == "%T2" || sFormula == "%T6" || sFormula == "%T4" || sFormula == "%T8")
+        else if (sFormula == u"%T2" || sFormula == u"%T6" || sFormula == u"%T4"
+                 || sFormula == u"%T8")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour(false);
@@ -1142,7 +1143,8 @@ void LwpFribField::RegisterDateTimeStyle(const OUString& sFormula)
             pTimeStyle->AddText(":");
             pTimeStyle->SetAmPm(true);
         }
-        else if (sFormula == "%T3" || sFormula == "%T7" || sFormula == "%T5" || sFormula == "%T9")
+        else if (sFormula == u"%T3" || sFormula == u"%T7" || sFormula == u"%T5"
+                 || sFormula == u"%T9")
         {
             pTimeStyle.reset(new XFTimeStyle);
             pTimeStyle->AddHour();
diff --git a/lotuswordpro/source/filter/lwpfribmark.hxx b/lotuswordpro/source/filter/lwpfribmark.hxx
index 0f47b204a02f..451f8b802f76 100644
--- a/lotuswordpro/source/filter/lwpfribmark.hxx
+++ b/lotuswordpro/source/filter/lwpfribmark.hxx
@@ -127,7 +127,7 @@ private:
     sal_uInt8 m_nDocPowerType;
 
     void RegisterTimeField(const LwpFieldMark* pFieldMark);
-    void RegisterDateTimeStyle(const OUString& sFormula);
+    void RegisterDateTimeStyle(std::u16string_view sFormula);
     void RegisterTotalTimeStyle();
     void CheckFieldType(LwpFieldMark* pFieldMark);
     void ConvertDocFieldStart(XFContentContainer* pXFPara,LwpFieldMark* pFieldMark);
diff --git a/reportdesign/inc/conditionalexpression.hxx b/reportdesign/inc/conditionalexpression.hxx
index 1f42a9badaac..4bac298a2138 100644
--- a/reportdesign/inc/conditionalexpression.hxx
+++ b/reportdesign/inc/conditionalexpression.hxx
@@ -57,7 +57,7 @@ namespace rptui
                 <TRUE/> if and only if the expression string could be successfully matched to
                 the pattern.
         */
-        bool                matchExpression( const OUString& _rExpression, const std::u16string_view _rFieldDataSource, OUString& _out_rLHS, OUString& _out_rRHS ) const;
+        bool                matchExpression( std::u16string_view _rExpression, const std::u16string_view _rFieldDataSource, OUString& _out_rLHS, OUString& _out_rRHS ) const;
     };
 
 
diff --git a/reportdesign/source/core/misc/conditionalexpression.cxx b/reportdesign/source/core/misc/conditionalexpression.cxx
index 0a0eda11f3fd..a395a371f445 100644
--- a/reportdesign/source/core/misc/conditionalexpression.cxx
+++ b/reportdesign/source/core/misc/conditionalexpression.cxx
@@ -64,7 +64,7 @@ namespace rptui
     }
 
 
-    bool ConditionalExpression::matchExpression( const OUString& _rExpression, const std::u16string_view _rFieldDataSource, OUString& _out_rLHS, OUString& _out_rRHS ) const
+    bool ConditionalExpression::matchExpression( std::u16string_view _rExpression, const std::u16string_view _rFieldDataSource, OUString& _out_rLHS, OUString& _out_rRHS ) const
     {
         // if we had regular expression, the matching would be pretty easy ...
         // just replace $1 and $2 in the pattern with (.*), and then get them with \1 resp. \2.
@@ -90,9 +90,9 @@ namespace rptui
 
         // up to the occurrence of the LHS (which must exist, see above), the two expressions
         // must be identical
-        if ( _rExpression.getLength() < nLHSIndex )
+        if ( sal_Int32(_rExpression.size()) < nLHSIndex )
             return false;
-        const std::u16string_view sExprPart1( _rExpression.subView( 0, nLHSIndex ) );
+        const std::u16string_view sExprPart1( _rExpression.substr( 0, nLHSIndex ) );
         const std::u16string_view sMatchExprPart1( sMatchExpression.subView( 0, nLHSIndex ) );
         if ( sExprPart1 != sMatchExprPart1 )
             // the left-most expression parts do not match
@@ -103,10 +103,10 @@ namespace rptui
         bool bHaveRHS( nRHSIndex != -1 );
         sal_Int32 nRightMostIndex( bHaveRHS ? nRHSIndex : nLHSIndex );
         const std::u16string_view sMatchExprPart3( sMatchExpression.subView( nRightMostIndex + 2 ) );
-        if ( o3tl::make_unsigned(_rExpression.getLength()) < sMatchExprPart3.size() )
+        if ( _rExpression.size() < sMatchExprPart3.size() )
             // the expression is not even long enough to hold the right-most part of the match expression
             return false;
-        const std::u16string_view sExprPart3( _rExpression.subView( _rExpression.getLength() - sMatchExprPart3.size() ) );
+        const std::u16string_view sExprPart3( _rExpression.substr( _rExpression.size() - sMatchExprPart3.size() ) );
         if ( sExprPart3 != sMatchExprPart3 )
             // the right-most expression parts do not match
             return false;
@@ -114,7 +114,7 @@ namespace rptui
         // if we don't have an RHS, we're done
         if ( !bHaveRHS )
         {
-            _out_rLHS = _rExpression.copy( sExprPart1.size(), _rExpression.getLength() - sExprPart1.size() - sExprPart3.size() );
+            _out_rLHS = _rExpression.substr( sExprPart1.size(), _rExpression.size() - sExprPart1.size() - sExprPart3.size() );
             return true;
         }
 
@@ -125,9 +125,9 @@ namespace rptui
             sMatchExpression.getLength() - nMatchExprPart2Start - sMatchExprPart3.size() - 2
         );
         // strip the expression by its left-most and right-most part
-        const std::u16string_view sExpression( _rExpression.subView(
+        const std::u16string_view sExpression( _rExpression.substr(
             sExprPart1.size(),
-            _rExpression.getLength() - sExprPart1.size() - sExprPart3.size()
+            _rExpression.size() - sExprPart1.size() - sExprPart3.size()
         ) );
 
         size_t nPart2Index = sExpression.find( sMatchExprPart2 );
diff --git a/scripting/source/provider/MasterScriptProvider.cxx b/scripting/source/provider/MasterScriptProvider.cxx
index 190382cee69b..66fc58db78bd 100644
--- a/scripting/source/provider/MasterScriptProvider.cxx
+++ b/scripting/source/provider/MasterScriptProvider.cxx
@@ -51,11 +51,11 @@ using namespace ::sf_misc;
 namespace func_provider
 {
 
-static bool endsWith( const OUString& target, const OUString& item )
+static bool endsWith( std::u16string_view target, std::u16string_view item )
 {
-    sal_Int32 index = target.indexOf( item );
-    return index != -1  &&
-           index == ( target.getLength() - item.getLength() );
+    size_t index = target.find( item );
+    return index != std::u16string_view::npos  &&
+           index == ( target.size() - item.size() );
 }
 
 /* should be available in some central location. */
diff --git a/scripting/source/stringresource/stringresource.cxx b/scripting/source/stringresource/stringresource.cxx
index 06b52b0377c7..669da8b2cbba 100644
--- a/scripting/source/stringresource/stringresource.cxx
+++ b/scripting/source/stringresource/stringresource.cxx
@@ -33,6 +33,7 @@
 #include <com/sun/star/ucb/SimpleFileAccess.hpp>
 
 #include <osl/diagnose.h>
+#include <o3tl/string_view.hxx>
 #include <rtl/tencinfo.h>
 #include <rtl/ustrbuf.hxx>
 #include <tools/urlobj.hxx>
@@ -1437,17 +1438,17 @@ void StringResourcePersistenceImpl::importBinary( const Sequence< ::sal_Int8 >&
 
 // Private helper methods
 
-static bool checkNamingSceme( const OUString& aName, const OUString& aNameBase,
+static bool checkNamingSceme( std::u16string_view aName, std::u16string_view aNameBase,
                        Locale& aLocale )
 {
     bool bSuccess = false;
 
-    sal_Int32 nNameLen = aName.getLength();
-    sal_Int32 nNameBaseLen = aNameBase.getLength();
+    size_t nNameLen = aName.size();
+    size_t nNameBaseLen = aNameBase.size();
 
     // Name has to start with NameBase followed
     // by a '_' and at least one more character
-    if( aName.startsWith( aNameBase ) && nNameBaseLen < nNameLen-1 &&
+    if( o3tl::starts_with(aName, aNameBase) && nNameBaseLen < nNameLen-1 &&
         aName[nNameBaseLen] == '_' )
     {
         bSuccess = true;
@@ -1457,23 +1458,23 @@ static bool checkNamingSceme( const OUString& aName, const OUString& aNameBase,
          * violate the naming scheme in use. */
 
         sal_Int32 iStart = nNameBaseLen + 1;
-        sal_Int32 iNext_ = aName.indexOf( '_', iStart );
-        if( iNext_ != -1 && iNext_ < nNameLen-1 )
+        size_t iNext_ = aName.find( '_', iStart );
+        if( iNext_ != std::u16string_view::npos && iNext_ < nNameLen-1 )
         {
-            aLocale.Language = aName.copy( iStart, iNext_ - iStart );
+            aLocale.Language = aName.substr( iStart, iNext_ - iStart );
 
             iStart = iNext_ + 1;
-            iNext_ = aName.indexOf( '_', iStart );
-            if( iNext_ != -1 && iNext_ < nNameLen-1 )
+            iNext_ = aName.find( '_', iStart );
+            if( iNext_ != std::u16string_view::npos && iNext_ < nNameLen-1 )
             {
-                aLocale.Country = aName.copy( iStart, iNext_ - iStart );
-                aLocale.Variant = aName.copy( iNext_ + 1 );
+                aLocale.Country = aName.substr( iStart, iNext_ - iStart );
+                aLocale.Variant = aName.substr( iNext_ + 1 );
             }
             else
-                aLocale.Country = aName.copy( iStart );
+                aLocale.Country = aName.substr( iStart );
         }
         else
-            aLocale.Language = aName.copy( iStart );
+            aLocale.Language = aName.substr( iStart );
     }
     return bSuccess;
 }
diff --git a/sdext/source/minimizer/pppoptimizertoken.cxx b/sdext/source/minimizer/pppoptimizertoken.cxx
index 1e020bc027a2..c21880edd8f3 100644
--- a/sdext/source/minimizer/pppoptimizertoken.cxx
+++ b/sdext/source/minimizer/pppoptimizertoken.cxx
@@ -163,7 +163,7 @@ const TokenTable pTokenTableArray[] =
     { "NotFound",           TK_NotFound }
 };
 
-PPPOptimizerTokenEnum TKGet( const OUString& rToken )
+PPPOptimizerTokenEnum TKGet( std::u16string_view rToken )
 {
     if ( !pHashMap )
     {   // init hash map
@@ -179,7 +179,7 @@ PPPOptimizerTokenEnum TKGet( const OUString& rToken )
         }
     }
     PPPOptimizerTokenEnum eRetValue = TK_NotFound;
-    int i, nLen = rToken.getLength();
+    size_t i, nLen = rToken.size();
     std::unique_ptr<char[]> pBuf(new char[ nLen + 1 ]);
     for ( i = 0; i < nLen; i++ )
         pBuf[ i ] = static_cast<char>(rToken[ i ]);
diff --git a/sdext/source/minimizer/pppoptimizertoken.hxx b/sdext/source/minimizer/pppoptimizertoken.hxx
index d0ae65ed74ab..3f946fcc0b08 100644
--- a/sdext/source/minimizer/pppoptimizertoken.hxx
+++ b/sdext/source/minimizer/pppoptimizertoken.hxx
@@ -140,7 +140,7 @@ enum PPPOptimizerTokenEnum
     TK_NotFound
 };
 
-PPPOptimizerTokenEnum TKGet(const OUString&);
+PPPOptimizerTokenEnum TKGet(std::u16string_view);
 OUString TKGet(const PPPOptimizerTokenEnum);
 
 #endif
diff --git a/sdext/source/presenter/PresenterHelpView.cxx b/sdext/source/presenter/PresenterHelpView.cxx
index cbce18d17d22..bdfa1ab37fb9 100644
--- a/sdext/source/presenter/PresenterHelpView.cxx
+++ b/sdext/source/presenter/PresenterHelpView.cxx
@@ -88,7 +88,7 @@ namespace {
         const OUString msText;
         std::shared_ptr<vector<LineDescriptor> > mpLineDescriptors;
 
-        static void SplitText (const OUString& rsText, vector<OUString>& rTextParts);
+        static void SplitText (std::u16string_view rsText, vector<OUString>& rTextParts);
         void FormatText (
             const vector<OUString>& rTextParts,
             const css::uno::Reference<css::rendering::XCanvasFont>& rxFont,
@@ -601,21 +601,22 @@ void LineDescriptorList::Update (
 }
 
 void LineDescriptorList::SplitText (
-    const OUString& rsText,
+    std::u16string_view rsText,
     vector<OUString>& rTextParts)
 {
     const char cQuote ('\'');
     const char cSeparator (',');
 
-    sal_Int32 nIndex (0);
-    sal_Int32 nStart (0);
-    sal_Int32 nLength (rsText.getLength());
+    size_t nIndex (0);
+    size_t nStart (0);
+    size_t nLength (rsText.size());
     bool bIsQuoted (false);
     while (nIndex < nLength)
     {
-        const sal_Int32 nQuoteIndex (rsText.indexOf(cQuote, nIndex));
-        const sal_Int32 nSeparatorIndex (rsText.indexOf(cSeparator, nIndex));
-        if (nQuoteIndex>=0 && (nSeparatorIndex==-1 || nQuoteIndex<nSeparatorIndex))
+        const size_t nQuoteIndex (rsText.find(cQuote, nIndex));
+        const size_t nSeparatorIndex (rsText.find(cSeparator, nIndex));
+        if (nQuoteIndex != std::u16string_view::npos &&
+            (nSeparatorIndex == std::u16string_view::npos || nQuoteIndex<nSeparatorIndex))
         {
             bIsQuoted = !bIsQuoted;
             nIndex = nQuoteIndex+1;
@@ -629,13 +630,13 @@ void LineDescriptorList::SplitText (
         }
         else if ( ! bIsQuoted)
         {
-            rTextParts.push_back(rsText.copy(nStart, nNextIndex-nStart));
+            rTextParts.push_back(OUString(rsText.substr(nStart, nNextIndex-nStart)));
             nStart = nNextIndex + 1;
         }
         nIndex = nNextIndex+1;
     }
     if (nStart < nLength)
-        rTextParts.push_back(rsText.copy(nStart, nLength-nStart));
+        rTextParts.push_back(OUString(rsText.substr(nStart, nLength-nStart)));
 }
 
 void LineDescriptorList::FormatText (
diff --git a/sdext/source/presenter/PresenterProtocolHandler.cxx b/sdext/source/presenter/PresenterProtocolHandler.cxx
index e3cdb67f9fea..a32a73b6180e 100644
--- a/sdext/source/presenter/PresenterProtocolHandler.cxx
+++ b/sdext/source/presenter/PresenterProtocolHandler.cxx
@@ -197,7 +197,7 @@ public:
 
     void SAL_CALL disposing() override;
     static Command* CreateCommand (
-        const OUString& rsURLPath,
+        std::u16string_view rsURLPath,
         const ::rtl::Reference<PresenterController>& rpPresenterController);
 
     // XDispatch
@@ -363,41 +363,41 @@ PresenterProtocolHandler::Dispatch::Dispatch (
 }
 
 Command* PresenterProtocolHandler::Dispatch::CreateCommand (
-    const OUString& rsURLPath,
+    std::u16string_view rsURLPath,
     const ::rtl::Reference<PresenterController>& rpPresenterController)
 {
-    if (rsURLPath.getLength() <= 5)
+    if (rsURLPath.size() <= 5)
         return nullptr;
 
-    if (rsURLPath == "CloseNotes")
+    if (rsURLPath == u"CloseNotes")
         return new SetNotesViewCommand(false, rpPresenterController);
-    if (rsURLPath == "CloseSlideSorter")
+    if (rsURLPath == u"CloseSlideSorter")
         return new SetSlideSorterCommand(false, rpPresenterController);
-    if (rsURLPath == "CloseHelp")
+    if (rsURLPath == u"CloseHelp")
         return new SetHelpViewCommand(false, rpPresenterController);
-    if (rsURLPath == "GrowNotesFont")
+    if (rsURLPath == u"GrowNotesFont")
         return new NotesFontSizeCommand(rpPresenterController, +1);
-    if (rsURLPath == "NextEffect")
+    if (rsURLPath == u"NextEffect")
         return new GotoNextEffectCommand(rpPresenterController);
-    if (rsURLPath == "NextSlide")
+    if (rsURLPath == u"NextSlide")
         return new GotoNextSlideCommand(rpPresenterController);
-    if (rsURLPath == "PrevSlide")
+    if (rsURLPath == u"PrevSlide")
         return new GotoPreviousSlideCommand(rpPresenterController);
-    if (rsURLPath == "SwitchMonitor")
+    if (rsURLPath == u"SwitchMonitor")
         return new SwitchMonitorCommand(rpPresenterController);
-    if (rsURLPath == "PauseResumeTimer")
+    if (rsURLPath == u"PauseResumeTimer")
         return new PauseResumeCommand(rpPresenterController);
-    if (rsURLPath == "RestartTimer")
+    if (rsURLPath == u"RestartTimer")
         return new RestartTimerCommand(rpPresenterController);
-    if (rsURLPath == "ShowNotes")
+    if (rsURLPath == u"ShowNotes")
         return new SetNotesViewCommand(true, rpPresenterController);
-    if (rsURLPath == "ShowSlideSorter")
+    if (rsURLPath == u"ShowSlideSorter")
         return new SetSlideSorterCommand(true, rpPresenterController);
-    if (rsURLPath == "ShowHelp")
+    if (rsURLPath == u"ShowHelp")
         return new SetHelpViewCommand(true, rpPresenterController);
-    if (rsURLPath == "ShrinkNotesFont")
+    if (rsURLPath == u"ShrinkNotesFont")
         return new NotesFontSizeCommand(rpPresenterController, -1);
-    if (rsURLPath == "ExitPresenter")
+    if (rsURLPath == u"ExitPresenter")
         return new ExitPresenterCommand(rpPresenterController);
 
     return nullptr;
diff --git a/uui/source/iahndl-ssl.cxx b/uui/source/iahndl-ssl.cxx
index fce82e8de6c6..24737d4a0353 100644
--- a/uui/source/iahndl-ssl.cxx
+++ b/uui/source/iahndl-ssl.cxx
@@ -31,6 +31,7 @@
 #include <comphelper/lok.hxx>
 #include <comphelper/sequence.hxx>
 #include <com/sun/star/uno/Sequence.hxx>
+#include <o3tl/string_view.hxx>
 #include <svl/numformat.hxx>
 #include <svl/zforlist.hxx>
 #include <unotools/resmgr.hxx>
@@ -80,21 +81,21 @@ getContentPart( std::u16string_view _rRawString )
 
 bool
 isDomainMatch(
-              const OUString& hostName, const uno::Sequence< OUString >& certHostNames)
+              std::u16string_view hostName, const uno::Sequence< OUString >& certHostNames)
 {
     for ( const OUString& element : certHostNames){
        if (element.isEmpty())
            continue;
 
-       if (hostName.equalsIgnoreAsciiCase( element ))
+       if (o3tl::equalsIgnoreAsciiCase( hostName, element ))
            return true;
 
        if (element.startsWith("*") &&
-           hostName.getLength() >= element.getLength()  )
+           sal_Int32(hostName.size()) >= element.getLength()  )
        {
            OUString cmpStr = element.copy( 1 );
-           if ( hostName.matchIgnoreAsciiCase(
-                    cmpStr, hostName.getLength() - cmpStr.getLength()) )
+           if ( o3tl::matchIgnoreAsciiCase(hostName,
+                    cmpStr, hostName.size() - cmpStr.getLength()) )
                return true;
        }
     }
diff --git a/uui/source/secmacrowarnings.cxx b/uui/source/secmacrowarnings.cxx
index 164890efca69..31281c2f5236 100644
--- a/uui/source/secmacrowarnings.cxx
+++ b/uui/source/secmacrowarnings.cxx
@@ -38,14 +38,14 @@ using namespace ::com::sun::star;
 
 namespace
 {
-    std::u16string_view GetContentPart( std::u16string_view _rRawString, const OUString& _rPartId )
+    std::u16string_view GetContentPart( std::u16string_view _rRawString, std::u16string_view _rPartId )
     {
         std::u16string_view      s;
 
         size_t  nContStart = _rRawString.find( _rPartId );
         if( nContStart != std::u16string_view::npos )
         {
-            nContStart = nContStart + _rPartId.getLength();
+            nContStart = nContStart + _rPartId.size();
             ++nContStart;                   // now its start of content, directly after Id
 
             size_t  nContEnd = _rRawString.find( ',', nContStart );
@@ -195,7 +195,7 @@ void MacroWarning::SetCertificate( const css::uno::Reference< css::security::XCe
     mxCert = _rxCert;
     if( mxCert.is() )
     {
-        OUString s( GetContentPart( mxCert->getSubjectName(), "CN" ) );
+        OUString s( GetContentPart( mxCert->getSubjectName(), u"CN" ) );
         mxSignsFI->set_label(s);
         mxViewSignsBtn->set_sensitive(true);
     }
diff --git a/xmlscript/source/xmldlg_imexp/imp_share.hxx b/xmlscript/source/xmldlg_imexp/imp_share.hxx
index ef418446998a..c05460ddf274 100644
--- a/xmlscript/source/xmldlg_imexp/imp_share.hxx
+++ b/xmlscript/source/xmldlg_imexp/imp_share.hxx
@@ -44,13 +44,13 @@
 namespace xmlscript
 {
 
-inline sal_Int32 toInt32( OUString const & rStr )
+inline sal_Int32 toInt32( std::u16string_view rStr )
 {
     sal_Int32 nVal;
-    if (rStr.getLength() > 2 && rStr[ 0 ] == '0' && rStr[ 1 ] == 'x')
-        nVal = o3tl::toUInt32(rStr.subView( 2 ), 16);
+    if (rStr.size() > 2 && rStr[ 0 ] == '0' && rStr[ 1 ] == 'x')
+        nVal = o3tl::toUInt32(rStr.substr( 2 ), 16);
     else
-        nVal = rStr.toInt32();
+        nVal = o3tl::toInt32(rStr);
     return nVal;
 }
 
diff --git a/xmlscript/source/xmllib_imexp/imp_share.hxx b/xmlscript/source/xmllib_imexp/imp_share.hxx
index 5798c13b92b6..f88474907922 100644
--- a/xmlscript/source/xmllib_imexp/imp_share.hxx
+++ b/xmlscript/source/xmllib_imexp/imp_share.hxx
@@ -32,16 +32,16 @@
 
 namespace xmlscript
 {
-inline sal_Int32 toInt32( OUString const & rStr )
+inline sal_Int32 toInt32( std::u16string_view rStr )
 {
     sal_Int32 nVal;
-    if (rStr.getLength() > 2 && rStr[ 0 ] == '0' && rStr[ 1 ] == 'x')
+    if (rStr.size() > 2 && rStr[ 0 ] == '0' && rStr[ 1 ] == 'x')
     {
-        nVal = o3tl::toUInt32(rStr.subView( 2 ),  16);
+        nVal = o3tl::toUInt32(rStr.substr( 2 ),  16);
     }
     else
     {
-        nVal = rStr.toInt32();
+        nVal = o3tl::toInt32(rStr);
     }
     return nVal;
 }