New loplugin:stringliteralvar

See the comment at the top of compilerplugins/clang/stringliteralvar.cxx for
details.

(Turned some affected variables in included files into inline variables, to
avoid GCC warnings about unused variables.)

Change-Id: Ie77219e6adfdaaceaa8b4e590b08971f2f04c83a
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/108239
Tested-by: Jenkins
Reviewed-by: Stephan Bergmann <sbergman@redhat.com>

13 files changed, 78 insertions, 75 deletions

diff --git a/xmloff/qa/unit/draw.cxx b/xmloff/qa/unit/draw.cxx
index 8365b463efc6..4128e33b96f2 100644
--- a/xmloff/qa/unit/draw.cxx
+++ b/xmloff/qa/unit/draw.cxx
@@ -20,7 +20,7 @@
 
 using namespace ::com::sun::star;
 
-char const DATA_DIRECTORY[] = "/xmloff/qa/unit/data/";
+OUStringLiteral const DATA_DIRECTORY = u"/xmloff/qa/unit/data/";
 
 /// Covers xmloff/source/draw/ fixes.
 class XmloffDrawTest : public test::BootstrapFixture, public unotest::MacrosTest
diff --git a/xmloff/qa/unit/style.cxx b/xmloff/qa/unit/style.cxx
index 4a5b7af616c1..d9511e3e2a8a 100644
--- a/xmloff/qa/unit/style.cxx
+++ b/xmloff/qa/unit/style.cxx
@@ -15,7 +15,7 @@
 
 using namespace ::com::sun::star;
 
-char const DATA_DIRECTORY[] = "/xmloff/qa/unit/data/";
+OUStringLiteral const DATA_DIRECTORY = u"/xmloff/qa/unit/data/";
 
 /// Covers xmloff/source/style/ fixes.
 class XmloffStyleTest : public test::BootstrapFixture, public unotest::MacrosTest
diff --git a/xmloff/qa/unit/text.cxx b/xmloff/qa/unit/text.cxx
index 3d1873d02e83..de2f718f53dc 100644
--- a/xmloff/qa/unit/text.cxx
+++ b/xmloff/qa/unit/text.cxx
@@ -14,7 +14,7 @@
 
 using namespace ::com::sun::star;
 
-char const DATA_DIRECTORY[] = "/xmloff/qa/unit/data/";
+OUStringLiteral const DATA_DIRECTORY = u"/xmloff/qa/unit/data/";
 
 /// Covers xmloff/source/text/ fixes.
 class XmloffStyleTest : public test::BootstrapFixture, public unotest::MacrosTest
diff --git a/xmloff/source/chart/SchXMLTableContext.cxx b/xmloff/source/chart/SchXMLTableContext.cxx
index ac5bcdbc2515..15de497408aa 100644
--- a/xmloff/source/chart/SchXMLTableContext.cxx
+++ b/xmloff/source/chart/SchXMLTableContext.cxx
@@ -55,7 +55,7 @@ using ::com::sun::star::uno::Reference;
 namespace
 {
 
-const char aCategoriesRange[] = "categories";
+const OUStringLiteral aCategoriesRange = u"categories";
 
 typedef ::std::multimap< OUString, OUString >
     lcl_tOriginalRangeToInternalRangeMap;
diff --git a/xmloff/source/draw/sdxmlexp.cxx b/xmloff/source/draw/sdxmlexp.cxx
index c7a6b44401aa..dac4db9eb464 100644
--- a/xmloff/source/draw/sdxmlexp.cxx
+++ b/xmloff/source/draw/sdxmlexp.cxx
@@ -17,6 +17,10 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
+#include <sal/config.h>
+
+#include <string_view>
+
 #include <xmloff/autolayout.hxx>
 #include <xmloff/unointerfacetouniqueidentifiermapper.hxx>
 #include <xmloff/namespacemap.hxx>
@@ -1313,7 +1317,7 @@ void SdXMLExport::ImpPrepDrawPageInfos()
     }
 }
 
-static OUString findOrAppendImpl( std::vector< OUString >& rVector, const OUString& rText, const char* pPrefix )
+static OUString findOrAppendImpl( std::vector< OUString >& rVector, const OUString& rText, std::u16string_view pPrefix )
 {
     // search rVector if there is already a string that equals rText
     auto aIter = std::find(rVector.begin(), rVector.end(), rText);
@@ -1325,10 +1329,10 @@ static OUString findOrAppendImpl( std::vector< OUString >& rVector, const OUStri
 
     // create a reference string with pPrefix and the index of the
     // found or created rText
-    return OUString::createFromAscii( pPrefix ) + OUString::number( nIndex );
+    return pPrefix + OUString::number( nIndex );
 }
 
-static OUString findOrAppendImpl( std::vector< DateTimeDeclImpl >& rVector, const OUString& rText, bool bFixed, sal_Int32 nFormat, const char* pPrefix )
+static OUString findOrAppendImpl( std::vector< DateTimeDeclImpl >& rVector, const OUString& rText, bool bFixed, sal_Int32 nFormat, std::u16string_view pPrefix )
 {
     // search rVector if there is already a DateTimeDeclImpl with rText,bFixed and nFormat
     auto aIter = std::find_if(rVector.begin(), rVector.end(),
@@ -1351,12 +1355,12 @@ static OUString findOrAppendImpl( std::vector< DateTimeDeclImpl >& rVector, cons
 
     // create a reference string with pPrefix and the index of the
     // found or created DateTimeDeclImpl
-    return OUString::createFromAscii( pPrefix ) + OUString::number( nIndex );
+    return pPrefix + OUString::number( nIndex );
 }
 
-const char gpStrHeaderTextPrefix[] = "hdr";
-const char gpStrFooterTextPrefix[] = "ftr";
-const char gpStrDateTimeTextPrefix[] = "dtd";
+const OUStringLiteral gpStrHeaderTextPrefix = u"hdr";
+const OUStringLiteral gpStrFooterTextPrefix = u"ftr";
+const OUStringLiteral gpStrDateTimeTextPrefix = u"dtd";
 
 HeaderFooterPageSettingsImpl SdXMLExport::ImpPrepDrawPageHeaderFooterDecls( const Reference<XDrawPage>& xDrawPage )
 {
diff --git a/xmloff/source/forms/elementimport.cxx b/xmloff/source/forms/elementimport.cxx
index 6f892de8ca09..79bc77a71e89 100644
--- a/xmloff/source/forms/elementimport.cxx
+++ b/xmloff/source/forms/elementimport.cxx
@@ -442,7 +442,7 @@ namespace xmloff
     {
         // no optimization here. If this method gets called, the XML stream did not contain a name for the
         // element, which is a heavy error. So in this case we don't care for performance
-        static const char sUnnamedName[] = "unnamed";
+        static const OUStringLiteral sUnnamedName = u"unnamed";
         OSL_ENSURE(m_xParentContainer.is(), "OElementImport::implGetDefaultName: no parent container!");
         if (!m_xParentContainer.is())
             return sUnnamedName;
diff --git a/xmloff/source/meta/xmlversion.cxx b/xmloff/source/meta/xmlversion.cxx
index 76fe43b5d2fb..2aa1100e5b21 100644
--- a/xmloff/source/meta/xmlversion.cxx
+++ b/xmloff/source/meta/xmlversion.cxx
@@ -40,7 +40,7 @@ using namespace ::com::sun::star::xml::sax;
 using namespace ::com::sun::star::uno;
 using namespace ::com::sun::star;
 
-const char XMLN_VERSIONSLIST[] = "VersionList.xml";
+const OUStringLiteral XMLN_VERSIONSLIST = u"VersionList.xml";
 
 XMLVersionListExport::XMLVersionListExport(
     const css::uno::Reference< css::uno::XComponentContext >& rContext,
diff --git a/xmloff/source/text/XMLTextFrameContext.cxx b/xmloff/source/text/XMLTextFrameContext.cxx
index 7c028bd1ef63..d06bc3cde711 100644
--- a/xmloff/source/text/XMLTextFrameContext.cxx
+++ b/xmloff/source/text/XMLTextFrameContext.cxx
@@ -1226,10 +1226,10 @@ void XMLTextFrameContext_Impl::SetHyperlink( const OUString& rHRef,
                        const OUString& rTargetFrameName,
                        bool bMap )
 {
-    static const char s_HyperLinkURL[] = "HyperLinkURL";
-    static const char s_HyperLinkName[] = "HyperLinkName";
-    static const char s_HyperLinkTarget[] = "HyperLinkTarget";
-    static const char s_ServerMap[] = "ServerMap";
+    static const OUStringLiteral s_HyperLinkURL = u"HyperLinkURL";
+    static const OUStringLiteral s_HyperLinkName = u"HyperLinkName";
+    static const OUStringLiteral s_HyperLinkTarget = u"HyperLinkTarget";
+    static const OUStringLiteral s_ServerMap = u"ServerMap";
     if( !xPropSet.is() )
         return;
 
diff --git a/xmloff/source/text/XMLTextListBlockContext.cxx b/xmloff/source/text/XMLTextListBlockContext.cxx
index 9240413a004b..b7a55c2ac80b 100644
--- a/xmloff/source/text/XMLTextListBlockContext.cxx
+++ b/xmloff/source/text/XMLTextListBlockContext.cxx
@@ -55,7 +55,7 @@ XMLTextListBlockContext::XMLTextListBlockContext(
 ,   msListId()
 ,   msContinueListId()
 {
-    static const char s_PropNameDefaultListId[] = "DefaultListId";
+    static const OUStringLiteral s_PropNameDefaultListId = u"DefaultListId";
     {
         // get the parent list block context (if any); this is a bit ugly...
         XMLTextListBlockContext * pLB(nullptr);
diff --git a/xmloff/source/text/XMLTextMarkImportContext.cxx b/xmloff/source/text/XMLTextMarkImportContext.cxx
index b81152a3c211..e48159449f02 100644
--- a/xmloff/source/text/XMLTextMarkImportContext.cxx
+++ b/xmloff/source/text/XMLTextMarkImportContext.cxx
@@ -241,7 +241,7 @@ static auto PopFieldmark(XMLTextImportHelper & rHelper) -> void
 
 void XMLTextMarkImportContext::endFastElement(sal_Int32 nElement)
 {
-    static const char sAPI_bookmark[] = "com.sun.star.text.Bookmark";
+    static const OUStringLiteral sAPI_bookmark = u"com.sun.star.text.Bookmark";
 
     lcl_MarkType nTmp{};
     if (!SvXMLUnitConverter::convertEnum(nTmp, SvXMLImport::getNameFromToken(nElement), lcl_aMarkTypeMap))
diff --git a/xmloff/source/text/txtfldi.cxx b/xmloff/source/text/txtfldi.cxx
index 0c65d17b1d67..e813d4a725f7 100644
--- a/xmloff/source/text/txtfldi.cxx
+++ b/xmloff/source/text/txtfldi.cxx
@@ -86,39 +86,39 @@ using namespace ::xmloff::token;
 
 
 // service prefix and service names
-constexpr char16_t sAPI_textfield_prefix[]  = u"com.sun.star.text.TextField.";
+constexpr OUStringLiteral sAPI_textfield_prefix = u"com.sun.star.text.TextField.";
 constexpr char16_t sAPI_fieldmaster_prefix[] = u"com.sun.star.text.FieldMaster.";
 const char sAPI_presentation_prefix[] = "com.sun.star.presentation.TextField.";
 
-const char sAPI_date_time[]                 = "DateTime";
-const char sAPI_page_number[]               = "PageNumber";
-const char sAPI_docinfo_change_date_time[]  = "DocInfo.ChangeDateTime";
-const char sAPI_docinfo_create_date_time[]  = "DocInfo.CreateDateTime";
-const char sAPI_docinfo_custom[]            = "DocInfo.Custom";
-const char sAPI_docinfo_print_date_time[]   = "DocInfo.PrintDateTime";
-const char sAPI_dde[]                       = "DDE";
-const char sAPI_url[]                       = "URL";
+const OUStringLiteral sAPI_date_time        = u"DateTime";
+const OUStringLiteral sAPI_page_number      = u"PageNumber";
+const OUStringLiteral sAPI_docinfo_change_date_time = u"DocInfo.ChangeDateTime";
+const OUStringLiteral sAPI_docinfo_create_date_time = u"DocInfo.CreateDateTime";
+const OUStringLiteral sAPI_docinfo_custom   = u"DocInfo.Custom";
+const OUStringLiteral sAPI_docinfo_print_date_time = u"DocInfo.PrintDateTime";
+const OUStringLiteral sAPI_dde              = u"DDE";
+const OUStringLiteral sAPI_url              = u"URL";
 
 // property names
-const char sAPI_is_fixed[]          = "IsFixed";
-const char sAPI_content[]           = "Content";
-const char sAPI_author[]            = "Author";
-const char sAPI_hint[]              = "Hint";
-const char sAPI_name[]              = "Name";
-const char sAPI_sub_type[]          = "SubType";
-const char sAPI_date_time_value[]   = "DateTimeValue";
-const char sAPI_number_format[]     = "NumberFormat";
-const char sAPI_numbering_type[]    = "NumberingType";
-const char sAPI_offset[]            = "Offset";
-const char sAPI_condition[]         = "Condition";
-const char sAPI_set_number[]        = "SetNumber";
-const char sAPI_file_format[]       = "FileFormat";
-const char sAPI_is_date[]           = "IsDate";
-const char sAPI_current_presentation[] = "CurrentPresentation";
-const char sAPI_is_hidden[]         = "IsHidden";
-const char sAPI_is_fixed_language[] = "IsFixedLanguage";
-
-const char sAPI_true[] = "TRUE";
+const OUStringLiteral sAPI_is_fixed = u"IsFixed";
+const OUStringLiteral sAPI_content  = u"Content";
+const OUStringLiteral sAPI_author   = u"Author";
+const OUStringLiteral sAPI_hint     = u"Hint";
+const OUStringLiteral sAPI_name     = u"Name";
+const OUStringLiteral sAPI_sub_type = u"SubType";
+const OUStringLiteral sAPI_date_time_value = u"DateTimeValue";
+const OUStringLiteral sAPI_number_format = u"NumberFormat";
+const OUStringLiteral sAPI_numbering_type = u"NumberingType";
+const OUStringLiteral sAPI_offset   = u"Offset";
+const OUStringLiteral sAPI_condition = u"Condition";
+const OUStringLiteral sAPI_set_number = u"SetNumber";
+const OUStringLiteral sAPI_file_format = u"FileFormat";
+const OUStringLiteral sAPI_is_date  = u"IsDate";
+const OUStringLiteral sAPI_current_presentation = u"CurrentPresentation";
+const OUStringLiteral sAPI_is_hidden = u"IsHidden";
+const OUStringLiteral sAPI_is_fixed_language = u"IsFixedLanguage";
+
+const OUStringLiteral sAPI_true = u"TRUE";
 
 
 XMLTextFieldImportContext::XMLTextFieldImportContext(
@@ -1537,7 +1537,6 @@ OUString XMLSimpleDocInfoImportContext::MapTokenToServiceName(
         case XML_ELEMENT(TEXT, XML_TITLE):
             pServiceName = "DocInfo.Title";
             break;
-
         default:
             XMLOFF_WARN_UNKNOWN_ELEMENT("xmloff", nElementToken);
             assert(false);
diff --git a/xmloff/source/text/txtimp.cxx b/xmloff/source/text/txtimp.cxx
index 6585a4b25517..e32c02d8ca1b 100644
--- a/xmloff/source/text/txtimp.cxx
+++ b/xmloff/source/text/txtimp.cxx
@@ -405,7 +405,7 @@ XMLTextImportHelper::XMLTextImportHelper(
                     bProgress, bBlockMode, bOrganizerMode) )
     , m_xBackpatcherImpl( MakeBackpatcherImpl() )
 {
-    static const char s_PropNameDefaultListId[] = "DefaultListId";
+    static const OUStringLiteral s_PropNameDefaultListId = u"DefaultListId";
 
     Reference< XChapterNumberingSupplier > xCNSupplier( rModel, UNO_QUERY );
 
@@ -1013,14 +1013,14 @@ OUString XMLTextImportHelper::SetStyleAndAttrs(
         bool bSetListAttrs,
         bool bOutlineContentVisible)
 {
-    static const char s_NumberingRules[] = "NumberingRules";
-    static const char s_NumberingIsNumber[] = "NumberingIsNumber";
-    static const char s_NumberingLevel[] = "NumberingLevel";
-    static const char s_ParaIsNumberingRestart[] = "ParaIsNumberingRestart";
-    static const char s_NumberingStartValue[] = "NumberingStartValue";
-    static const char s_PropNameListId[] = "ListId";
-    static const char s_PageDescName[] = "PageDescName";
-    static const char s_OutlineLevel[] = "OutlineLevel";
+    static const OUStringLiteral s_NumberingRules = u"NumberingRules";
+    static const OUStringLiteral s_NumberingIsNumber = u"NumberingIsNumber";
+    static const OUStringLiteral s_NumberingLevel = u"NumberingLevel";
+    static const OUStringLiteral s_ParaIsNumberingRestart = u"ParaIsNumberingRestart";
+    static const OUStringLiteral s_NumberingStartValue = u"NumberingStartValue";
+    static const OUStringLiteral s_PropNameListId = u"ListId";
+    static const OUStringLiteral s_PageDescName = u"PageDescName";
+    static const OUStringLiteral s_OutlineLevel = u"OutlineLevel";
 
     const XmlStyleFamily nFamily = bPara ? XmlStyleFamily::TEXT_PARAGRAPH
                                          : XmlStyleFamily::TEXT_TEXT;
@@ -1619,12 +1619,12 @@ void XMLTextImportHelper::SetHyperlink(
     const OUString& rVisitedStyleName,
     XMLEventsImportContext* pEvents)
 {
-    static const char s_HyperLinkURL[] = "HyperLinkURL";
-    static const char s_HyperLinkName[] = "HyperLinkName";
-    static const char s_HyperLinkTarget[] = "HyperLinkTarget";
-    static const char s_UnvisitedCharStyleName[] = "UnvisitedCharStyleName";
-    static const char s_VisitedCharStyleName[] = "VisitedCharStyleName";
-    static const char s_HyperLinkEvents[] = "HyperLinkEvents";
+    static const OUStringLiteral s_HyperLinkURL = u"HyperLinkURL";
+    static const OUStringLiteral s_HyperLinkName = u"HyperLinkName";
+    static const OUStringLiteral s_HyperLinkTarget = u"HyperLinkTarget";
+    static const OUStringLiteral s_UnvisitedCharStyleName = u"UnvisitedCharStyleName";
+    static const OUStringLiteral s_VisitedCharStyleName = u"VisitedCharStyleName";
+    static const OUStringLiteral s_HyperLinkEvents = u"HyperLinkEvents";
 
     Reference < XPropertySet > xPropSet( rCursor, UNO_QUERY );
     Reference < XPropertySetInfo > xPropSetInfo(
@@ -2212,7 +2212,7 @@ void XMLTextImportHelper::ConnectFrameChains(
 
 bool XMLTextImportHelper::IsInFrame() const
 {
-    static const char s_TextFrame[] = "TextFrame";
+    static const OUStringLiteral s_TextFrame = u"TextFrame";
 
     bool bIsInFrame = false;
 
diff --git a/xmloff/source/text/txtvfldi.cxx b/xmloff/source/text/txtvfldi.cxx
index 790844cef1bd..f6fdcaee02c4 100644
--- a/xmloff/source/text/txtvfldi.cxx
+++ b/xmloff/source/text/txtvfldi.cxx
@@ -54,17 +54,17 @@
 
 // service names
 constexpr char16_t sAPI_fieldmaster_prefix[] = u"com.sun.star.text.FieldMaster.";
-const char sAPI_get_expression[]     = "GetExpression";
-const char sAPI_set_expression[]     = "SetExpression";
-const char sAPI_user[]               = "User";
-const char sAPI_database[]           = "com.sun.star.text.TextField.Database";
+const OUStringLiteral sAPI_get_expression = u"GetExpression";
+const OUStringLiteral sAPI_set_expression = u"SetExpression";
+const OUStringLiteral sAPI_user      = u"User";
+const OUStringLiteral sAPI_database  = u"com.sun.star.text.TextField.Database";
 
 // property names
-const char sAPI_content[]            = "Content";
-const char sAPI_sub_type[]           = "SubType";
-const char sAPI_number_format[]      = "NumberFormat";
-const char sAPI_is_visible[]         = "IsVisible";
-const char sAPI_current_presentation[]   = "CurrentPresentation";
+const OUStringLiteral sAPI_content   = u"Content";
+const OUStringLiteral sAPI_sub_type  = u"SubType";
+const OUStringLiteral sAPI_number_format = u"NumberFormat";
+const OUStringLiteral sAPI_is_visible = u"IsVisible";
+const OUStringLiteral sAPI_current_presentation = u"CurrentPresentation";
 
 
 using namespace ::com::sun::star;
@@ -866,8 +866,8 @@ bool XMLVariableDeclImportContext::FindFieldMaster(
 
             OUStringBuffer sService;
             sService.append(sAPI_fieldmaster_prefix);
-            sService.appendAscii((eVarType==VarTypeUserField) ?
-                                 sAPI_user : sAPI_set_expression);
+            sService.append((eVarType==VarTypeUserField) ?
+                                 OUString(sAPI_user) : OUString(sAPI_set_expression));
             Reference<XInterface> xIfc =
                 xFactory->createInstance( sService.makeStringAndClear() );
             if (xIfc.is()) {