loplugin:useuniqueptr in l10ntools

Change-Id: Ib8dafdb2b3831cdd9481fd19b340ac377c8dc9db
Reviewed-on: https://gerrit.libreoffice.org/62649
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

l10ntools/inc/xmlparse.hxx

@@ -354,10 +354,10 @@ public:
     SimpleXMLParser();
     ~SimpleXMLParser();
 
-    /// parse a file, returns NULL on critical errors
-    XMLFile *Execute(
+    /// parse a file, return false on critical errors
+    bool Execute(
         const OString &rFileName,    // the file name
-        XMLFile *pXMLFileIn         // the XMLFile
+        XMLFile* pXMLFile  // the XMLFile
     );
 
     /// returns an error struct

l10ntools/source/helpex.cxx

@@ -120,10 +120,11 @@ SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
         else
         {
             HelpParser aParser( aArgs.m_sInputFile );
+            std::unique_ptr<XMLFile> xmlfile(new XMLFile( OString('0') ));
             hasNoError =
                 HelpParser::CreatePO(
                     aArgs.m_sOutputFile, aArgs.m_sInputFile,
-                    new XMLFile( OString('0') ), "help" );
+                    xmlfile.get(), "help" );
         }
     }
     catch (std::exception& e)

l10ntools/source/helpmerge.cxx

@@ -81,13 +81,11 @@ HelpParser::HelpParser( const OString &rHelpFile )
 bool HelpParser::CreatePO(
 /*****************************************************************************/
     const OString &rPOFile_in, const OString &sHelpFile,
-    XMLFile *pXmlFile, const OString &rGsi1){
+    XMLFile* pXmlFile, const OString &rGsi1){
     SimpleXMLParser aParser;
     //TODO: explicit BOM handling?
 
-    std::unique_ptr <XMLFile> file ( aParser.Execute( sHelpFile, pXmlFile ) );
-
-    if (file == nullptr)
+    if (!aParser.Execute( sHelpFile, pXmlFile ))
     {
         printf(
             "%s: %s\n",
@@ -95,8 +93,8 @@ bool HelpParser::CreatePO(
             aParser.GetError().m_sMessage.getStr());
         exit(-1);
     }
-    file->Extract();
-    if( !file->CheckExportStatus() ){
+    pXmlFile->Extract();
+    if( !pXmlFile->CheckExportStatus() ){
         return true;
     }
 
@@ -107,9 +105,9 @@ bool HelpParser::CreatePO(
         return false;
     }
 
-    XMLHashMap* aXMLStrHM = file->GetStrings();
+    XMLHashMap* aXMLStrHM = pXmlFile->GetStrings();
 
-    std::vector<OString> order = file->getOrder();
+    std::vector<OString> order = pXmlFile->getOrder();
 
     for (auto const& pos : order)
     {
@@ -150,8 +148,8 @@ bool HelpParser::Merge( const OString &rDestinationFile,
 
     //TODO: explicit BOM handling?
 
-    std::unique_ptr<XMLFile> xmlfile(aParser.Execute( sHelpFile, new XMLFile( OString('0') ) ));
-    if (!xmlfile)
+    std::unique_ptr<XMLFile> xmlfile(new XMLFile( OString('0') ));
+    if (!aParser.Execute( sHelpFile, xmlfile.get()))
     {
         SAL_WARN("l10ntools", "could not parse " << sHelpFile);
         return false;

l10ntools/source/xmlparse.cxx

@@ -869,7 +869,7 @@ void SimpleXMLParser::Default( const XML_Char *s, int len )
     new XMLDefault(OString( s, len ), m_pCurNode );
 }
 
-XMLFile *SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFileIn )
+bool SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFile )
 {
     m_aErrorInformation.m_eCode = XML_ERROR_NONE;
     m_aErrorInformation.m_nLine = 0;
@@ -883,7 +883,7 @@ XMLFile *SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFileIn
     if (osl_openFile(aFileURL.pData, &h, osl_File_OpenFlag_Read)
         != osl_File_E_None)
     {
-        return nullptr;
+        return false;
     }
 
     sal_uInt64 s;
@@ -896,10 +896,9 @@ XMLFile *SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFileIn
     if (e != osl_File_E_None)
     {
         osl_closeFile(h);
-        return nullptr;
+        return false;
     }
 
-    XMLFile* pXMLFile = pXMLFileIn;
     pXMLFile->SetName( rFileName );
 
     m_pCurNode = pXMLFile;
@@ -915,7 +914,8 @@ XMLFile *SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFileIn
     else
         m_aErrorInformation.m_sMessage = "XML-File parsed successfully";
 
-    if (!XML_Parse(m_aParser, static_cast< char * >(p), s, true))
+    bool result = XML_Parse(m_aParser, static_cast< char * >(p), s, true);
+    if (!result)
     {
         m_aErrorInformation.m_eCode = XML_GetErrorCode( m_aParser );
         m_aErrorInformation.m_nLine = XML_GetErrorLineNumber( m_aParser );
@@ -1004,14 +1004,12 @@ XMLFile *SimpleXMLParser::Execute( const OString &rFileName, XMLFile* pXMLFileIn
         default:
             break;
         }
-        delete pXMLFile;
-        pXMLFile = nullptr;
     }
 
     osl_unmapMappedFile(h, p, s);
     osl_closeFile(h);
 
-    return pXMLFile;
+    return result;
 }
 
 namespace