Merge branch 'albert-github-feature/bug_endblock_msg'

46 files changed, 449 insertions, 449 deletions

diff --git a/src/classdef.cpp b/src/classdef.cpp
index a7b59c1..856ab05 100644
--- a/src/classdef.cpp
+++ b/src/classdef.cpp
@@ -3456,7 +3456,7 @@ bool ClassDefImpl::hasNonReferenceSuperClass() const
 void ClassDefImpl::writeDeclaration(OutputList &ol,const MemberDef *md,bool inGroup,
     const ClassDef *inheritedFrom,const char *inheritId) const
 {
-  //printf("ClassName=`%s' inGroup=%d\n",name().data(),inGroup);
+  //printf("ClassName='%s' inGroup=%d\n",name().data(),inGroup);
 
   ol.docify(compoundTypeString());
   QCString cn = displayName(FALSE);
@@ -3570,8 +3570,8 @@ bool ClassDefImpl::hasDocumentation() const
 
 //----------------------------------------------------------------------
 // recursive function:
-// returns TRUE iff class definition `bcd' represents an (in)direct base
-// class of class definition `cd'.
+// returns TRUE iff class definition 'bcd' represents an (in)direct base
+// class of class definition 'cd'.
 
 bool ClassDefImpl::isBaseClass(const ClassDef *bcd, bool followInstances,int level) const
 {
@@ -3636,7 +3636,7 @@ static bool isStandardFunc(MemberDef *md)
 }
 
 /*!
- * recursively merges the `all members' lists of a class base
+ * recursively merges the 'all members' lists of a class base
  * with that of this class. Must only be called for classes without
  * subclasses!
  */
@@ -3781,7 +3781,7 @@ void ClassDefImpl::mergeMembers()
                 {
                   if (!isStandardFunc(srcMd))
                   {
-                    //printf("    insertMember `%s'\n",srcMd->name().data());
+                    //printf("    insertMember '%s'\n",srcMd->name().data());
                     internalInsertMember(srcMd,prot,FALSE);
                   }
                 }
@@ -3858,7 +3858,7 @@ void ClassDefImpl::mergeMembers()
                   {
                     if (!isStandardFunc(mi->memberDef))
                     {
-                      //printf("    insertMember `%s'\n",mi->memberDef->name().data());
+                      //printf("    insertMember '%s'\n",mi->memberDef->name().data());
                       internalInsertMember(mi->memberDef,prot,FALSE);
                     }
                   }
@@ -4119,7 +4119,7 @@ void ClassDefImpl::determineImplUsageRelation()
       if (md->isVariable()) // for each member variable in this class
       {
         QCString type=removeRedundantWhiteSpace(md->typeString());
-        //printf("in class %s found var type=`%s' name=`%s'\n",
+        //printf("in class %s found var type='%s' name='%s'\n",
         //            name().data(),type.data(),md->name().data());
         int pos=0;
         QCString usedClassName;
@@ -4127,7 +4127,7 @@ void ClassDefImpl::determineImplUsageRelation()
         bool found=FALSE;
         while (extractClassNameFromType(type,pos,usedClassName,templSpec)!=-1 && !found)
         {
-          //printf("usedClassName=`%s' templSpec=%s\n",usedClassName.data(),templSpec.data());
+          //printf("usedClassName='%s' templSpec=%s\n",usedClassName.data(),templSpec.data());
           // check if usedClassName is a template argument of its class
           ClassDef *cd=md->getClassDef();
           if (cd && cd->templateArguments())
@@ -4239,11 +4239,11 @@ void ClassDefImpl::addUsedInterfaceClasses(MemberDef *md,const char *typeStr)
       {
         ucd = new UsesClassDef(cd);
         m_impl->usesIntfClassDict->insert(cd->name(),ucd);
-        //printf("in class `%s' adding used intf class `%s'\n",
+        //printf("in class '%s' adding used intf class '%s'\n",
         //  name().data(),cd->name().data());
       }
       ucd->addAccessor(md->name());
-      //printf("in class `%s' adding accessor `%s' to class `%s'\n",
+      //printf("in class '%s' adding accessor '%s' to class '%s'\n",
       //    name().data(),md->name().data(),ucd->classDef->name().data());
     }
     p=i+l;
@@ -4482,7 +4482,7 @@ ClassDef *ClassDefImpl::insertTemplateInstance(const QCString &fileName,
   ClassDef *templateClass=m_impl->templateInstances->find(templSpec);
   if (templateClass==0)
   {
-    Debug::print(Debug::Classes,0,"      New template instance class `%s'`%s'\n",qPrint(name()),qPrint(templSpec));
+    Debug::print(Debug::Classes,0,"      New template instance class '%s''%s'\n",qPrint(name()),qPrint(templSpec));
     QCString tcname = removeRedundantWhiteSpace(localName()+templSpec);
     templateClass = new ClassDefImpl(
         fileName,startLine,startColumn,tcname,ClassDef::Class);
@@ -4505,7 +4505,7 @@ ClassDef *ClassDefImpl::getVariableInstance(const char *templSpec) const
   ClassDef *templateClass=m_impl->variableInstances->find(templSpec);
   if (templateClass==0)
   {
-    Debug::print(Debug::Classes,0,"      New template variable instance class `%s'`%s'\n",qPrint(name()),qPrint(templSpec));
+    Debug::print(Debug::Classes,0,"      New template variable instance class '%s' '%s'\n",qPrint(name()),qPrint(templSpec));
     QCString tcname = removeRedundantWhiteSpace(name()+templSpec);
     templateClass = new ClassDefImpl("<code>",1,1,tcname,
                         ClassDef::Class,0,0,FALSE);
diff --git a/src/code.l b/src/code.l
index e92a695..8df0085 100644
--- a/src/code.l
+++ b/src/code.l
@@ -415,7 +415,7 @@ static void pushScope(const char *s)
     g_classScope += "::";
     g_classScope += s;
   }
-  //printf("pushScope(%s) result: `%s'\n",s,g_classScope.data());
+  //printf("pushScope(%s) result: '%s'\n",s,g_classScope.data());
 }
 
 /*! remove the top class/namespace name from the scope */
@@ -431,7 +431,7 @@ static void popScope()
   {
     //err("Too many end of scopes found!\n");
   }
-  //printf("popScope() result: `%s'\n",g_classScope.data());
+  //printf("popScope() result: '%s'\n",g_classScope.data());
 }
 
 static void setCurrentDoc(const QCString &anchor)
@@ -482,7 +482,7 @@ static void setClassScope(const QCString &name)
     n = n.mid(i+2);
   }
   pushScope(n);
-  //printf("--->New class scope `%s'\n",g_classScope.data());
+  //printf("--->New class scope '%s'\n",g_classScope.data());
 }
 
 /*! start a new line of code, inserting a line number if g_sourceFileDef
@@ -513,7 +513,7 @@ static void startCodeLine()
       g_args.resize(0);
       g_parmType.resize(0);
       g_parmName.resize(0);
-      //printf("Real scope: `%s'\n",g_realScope.data());
+      //printf("Real scope: '%s'\n",g_realScope.data());
       g_bodyCurlyCount = 0;
       QCString lineAnchor;
       lineAnchor.sprintf("l%05d",g_yyLineNr);
@@ -567,7 +567,7 @@ static void nextCodeLine()
   }
 }
 
-/*! write a code fragment `text' that may span multiple lines, inserting
+/*! write a code fragment 'text' that may span multiple lines, inserting
  * line numbers for each line.
  */
 static void codifyLines(const char *text)
@@ -713,7 +713,7 @@ static const ClassDef *stripClassName(const char *s,Definition *d=g_currentDefin
     {
       cd=getResolvedClass(d,g_sourceFileDef,clName);
     }
-    //printf("stripClass trying `%s' = %p\n",clName.data(),cd);
+    //printf("stripClass trying '%s' = %p\n",clName.data(),cd);
     if (cd)
     {
       return cd;
@@ -768,7 +768,7 @@ static MemberDef *setCallContextForVar(const QCString &name)
     DBG_CTX((stderr,"local variable?\n"));
     if (mcd!=VariableContext::dummyContext)
     {
-      DBG_CTX((stderr,"local var `%s' mcd=%s\n",name.data(),mcd->name().data()));
+      DBG_CTX((stderr,"local var '%s' mcd=%s\n",name.data(),mcd->name().data()));
       g_theCallContext.setScope(mcd);
     }
   }
@@ -786,7 +786,7 @@ static MemberDef *setCallContextForVar(const QCString &name)
         DBG_CTX((stderr,"Found member %s\n",md->name().data()));
 	if (g_scopeStack.top()!=CLASSBLOCK)
 	{
-          DBG_CTX((stderr,"class member `%s' mcd=%s\n",name.data(),mcd->name().data()));
+          DBG_CTX((stderr,"class member '%s' mcd=%s\n",name.data(),mcd->name().data()));
 	  g_theCallContext.setScope(stripClassName(md->typeString(),md->getOuterScope()));
 	}
 	return md;
@@ -797,7 +797,7 @@ static MemberDef *setCallContextForVar(const QCString &name)
   // look for a global member
   if ((mn=Doxygen::functionNameSDict->find(name)))
   {
-    //printf("global var `%s'\n",name.data());
+    //printf("global var '%s'\n",name.data());
     if (mn->count()==1) // global defined only once
     {
       MemberDef *md=mn->getFirst();
@@ -865,7 +865,7 @@ static bool getLinkInScope(const QCString &c,  // scope
   const FileDef      *fd = 0;
   const NamespaceDef *nd = 0;
   const GroupDef     *gd = 0;
-  DBG_CTX((stderr,"getLinkInScope: trying `%s'::`%s' varOnly=%d\n",c.data(),m.data(),varOnly));
+  DBG_CTX((stderr,"getLinkInScope: trying '%s'::'%s' varOnly=%d\n",c.data(),m.data(),varOnly));
   if (getDefs(c,m,"()",md,cd,fd,nd,gd,FALSE,g_sourceFileDef,FALSE,g_forceTagReference) && 
       (!varOnly || md->isVariable()))
   {
@@ -899,7 +899,7 @@ static bool getLinkInScope(const QCString &c,  // scope
         {
           addDocCrossReference(g_currentMemberDef,const_cast<MemberDef*>(md));
         }
-        //printf("d->getReference()=`%s' d->getOutputBase()=`%s' name=`%s' member name=`%s'\n",d->getReference().data(),d->getOutputFileBase().data(),d->name().data(),md->name().data());
+        //printf("d->getReference()='%s' d->getOutputBase()='%s' name='%s' member name='%s'\n",d->getReference().data(),d->getOutputFileBase().data(),d->name().data(),md->name().data());
 
         writeMultiLineCodeLink(ol,md, text ? text : memberText);
         addToSearchIndex(text ? text : memberText);
@@ -1122,7 +1122,7 @@ static bool generateClassMemberLink(CodeOutputInterface &ol,MemberDef *xmd,const
   // extract class definition of the return type in order to resolve
   // a->b()->c() like call chains
 
-  //printf("type=`%s' args=`%s' class=%s\n",
+  //printf("type='%s' args='%s' class=%s\n",
   //  xmd->typeString(),xmd->argsString(),
   //  xmd->getClassDef()->name().data());
 
@@ -1250,7 +1250,7 @@ static void generateMemberLink(CodeOutputInterface &ol,const QCString &varName,
     vcd = getResolvedClass(g_currentDefinition,g_sourceFileDef,g_classScope);
     if (vcd && vcd->isLinkable())
     {
-      //printf("Found class %s for variable `%s'\n",g_classScope.data(),varName.data());
+      //printf("Found class %s for variable '%s'\n",g_classScope.data(),varName.data());
       MemberName *vmn=Doxygen::memberNameSDict->find(varName);
       if (vmn==0)
       {
@@ -1261,7 +1261,7 @@ static void generateMemberLink(CodeOutputInterface &ol,const QCString &varName,
 	  ClassDef *jcd = getClass(vn.left(vi));
 	  vn=vn.right(vn.length()-vi-2);
 	  vmn=Doxygen::memberNameSDict->find(vn);
-	  //printf("Trying name `%s' scope=%s\n",vn.data(),scope.data());
+	  //printf("Trying name '%s' scope=%s\n",vn.data(),scope.data());
 	  if (vmn)
 	  {
 	    MemberNameIterator vmni(*vmn);
@@ -1284,7 +1284,7 @@ static void generateMemberLink(CodeOutputInterface &ol,const QCString &varName,
       }
       if (vmn)
       {
-	//printf("There is a variable with name `%s'\n",varName);
+	//printf("There is a variable with name '%s'\n",varName);
 	MemberNameIterator vmni(*vmn);
 	const MemberDef *vmd;
 	for (;(vmd=vmni.current());++vmni)
diff --git a/src/commentscan.l b/src/commentscan.l
index 168de94..a495c5e 100644
--- a/src/commentscan.l
+++ b/src/commentscan.l
@@ -2977,7 +2977,7 @@ static bool handleToc(const QCString &, const QCStringList &optList)
       {
         if (sscanf(opt.right(opt.length() - i - 1).data(),"%d%c",&level,&dum) != 1)
         {
-          warn(yyFileName,yyLineNr,"Unknown option:level specified with \\tableofcontents: `%s'", (*it).stripWhiteSpace().data());
+          warn(yyFileName,yyLineNr,"Unknown option:level specified with \\tableofcontents: '%s'", (*it).stripWhiteSpace().data());
           opt = "";
         }
         else
@@ -3007,7 +3007,7 @@ static bool handleToc(const QCString &, const QCStringList &optList)
         }
         else
         {
-          warn(yyFileName,yyLineNr,"Unknown option specified with \\tableofcontents: `%s'", (*it).stripWhiteSpace().data());
+          warn(yyFileName,yyLineNr,"Unknown option specified with \\tableofcontents: '%s'", (*it).stripWhiteSpace().data());
         }
       }
     }
diff --git a/src/configimpl.l b/src/configimpl.l
index 72c826d..832f95e 100644
--- a/src/configimpl.l
+++ b/src/configimpl.l
@@ -174,7 +174,7 @@ void ConfigInt::convertStrToVal()
     int val = m_valueString.toInt(&ok);
     if (!ok || val<m_minVal || val>m_maxVal)
     {
-      config_warn("argument `%s' for option %s is not a valid number in the range [%d..%d]!\n"
+      config_warn("argument '%s' for option %s is not a valid number in the range [%d..%d]!\n"
                 "Using the default: %d!\n",m_valueString.data(),m_name.data(),m_minVal,m_maxVal,m_value);
     }
     else
@@ -199,7 +199,7 @@ void ConfigBool::convertStrToVal()
     }
     else
     {
-      config_warn("argument `%s' for option %s is not a valid boolean value\n"
+      config_warn("argument '%s' for option %s is not a valid boolean value\n"
                 "Using the default: %s!\n",m_valueString.data(),m_name.data(),m_value?"YES":"NO");
     }
   }
@@ -711,7 +711,7 @@ static void readIncludeFile(const char *incName)
 					   ConfigOption *option = config->get(cmd);
 					   if (option==0) // oops not known
 					   {
-					     config_warn("ignoring unsupported tag `%s' at line %d, file %s\n",
+					     config_warn("ignoring unsupported tag '%s' at line %d, file %s\n",
 						 cmd.data(),yyLineNr,yyFileName.data()); 
 					     BEGIN(SkipInvalid);
 					   }
@@ -754,12 +754,12 @@ static void readIncludeFile(const char *incName)
 					       case ConfigOption::O_Obsolete:
                                                  if (config_upd)
                                                  {
-					           config_warn("Tag `%s' at line %d of file `%s' has become obsolete.\n"
+					           config_warn("Tag '%s' at line %d of file '%s' has become obsolete.\n"
 						              "         This tag has been removed.\n", cmd.data(),yyLineNr,yyFileName.data());
                                                  }
                                                  else
                                                  {
-					           config_warn("Tag `%s' at line %d of file `%s' has become obsolete.\n"
+					           config_warn("Tag '%s' at line %d of file '%s' has become obsolete.\n"
 						              "         To avoid this warning please remove this line from your configuration "
 							      "file or upgrade it using \"doxygen -u\"\n", cmd.data(),yyLineNr,yyFileName.data()); 
                                                  }
@@ -768,12 +768,12 @@ static void readIncludeFile(const char *incName)
 					       case ConfigOption::O_Disabled:
                                                  if (config_upd)
                                                  {
-					           config_warn("Tag `%s' at line %d of file `%s' belongs to an option that was not enabled at compile time.\n"
+					           config_warn("Tag '%s' at line %d of file '%s' belongs to an option that was not enabled at compile time.\n"
 						              "         This tag has been removed.\n", cmd.data(),yyLineNr,yyFileName.data());
                                                  }
                                                  else
                                                  {
-					           config_warn("Tag `%s' at line %d of file `%s' belongs to an option that was not enabled at compile time.\n"
+					           config_warn("Tag '%s' at line %d of file '%s' belongs to an option that was not enabled at compile time.\n"
 						              "         To avoid this warning please remove this line from your configuration "
 							    "file or upgrade it using \"doxygen -u\", or recompile doxygen with this feature enabled.\n", cmd.data(),yyLineNr,yyFileName.data()); 
                                                  }
@@ -787,7 +787,7 @@ static void readIncludeFile(const char *incName)
 					  ConfigOption *option = config->get(cmd);
 					  if (option==0) // oops not known
 					  {
-					    config_warn("ignoring unsupported tag `%s' at line %d, file %s\n",
+					    config_warn("ignoring unsupported tag '%s' at line %d, file %s\n",
 						cmd.data(),yyLineNr,yyFileName.data()); 
 					    BEGIN(SkipInvalid);
 					  }
@@ -809,18 +809,18 @@ static void readIncludeFile(const char *incName)
 					      case ConfigOption::O_String:
 					      case ConfigOption::O_Int:
 					      case ConfigOption::O_Bool:
-					        config_warn("operator += not supported for `%s'. Ignoring line at line %d, file %s\n",
+					        config_warn("operator += not supported for '%s'. Ignoring line at line %d, file %s\n",
 						    yytext,yyLineNr,yyFileName.data()); 
 					        BEGIN(SkipInvalid);
 						break;
 					       case ConfigOption::O_Obsolete:
-					         config_warn("Tag `%s' at line %d of file %s has become obsolete.\n"
+					         config_warn("Tag '%s' at line %d of file %s has become obsolete.\n"
 						            "To avoid this warning please update your configuration "
 							    "file using \"doxygen -u\"\n", cmd.data(),yyLineNr,yyFileName.data()); 
 					         BEGIN(SkipInvalid);
 						 break;
 					       case ConfigOption::O_Disabled:
-					         config_warn("Tag `%s' at line %d of file %s belongs to an option that was not enabled at compile time.\n"
+					         config_warn("Tag '%s' at line %d of file %s belongs to an option that was not enabled at compile time.\n"
 						            "To avoid this warning please remove this line from your configuration "
 							    "file, upgrade it using \"doxygen -u\", or recompile doxygen with this feature enabled.\n", cmd.data(),yyLineNr,yyFileName.data()); 
 					         BEGIN(SkipInvalid);
@@ -857,13 +857,13 @@ static void readIncludeFile(const char *incName)
 					  }
   					}
 
-<Start>[a-z_A-Z0-9]+			{ config_warn("ignoring unknown tag `%s' at line %d, file %s\n",yytext,yyLineNr,yyFileName.data()); }
+<Start>[a-z_A-Z0-9]+			{ config_warn("ignoring unknown tag '%s' at line %d, file %s\n",yytext,yyLineNr,yyFileName.data()); }
 <GetString,GetBool,SkipInvalid>\n	{ yyLineNr++; BEGIN(Start); }
 <GetStrList>\n				{ 
   					  yyLineNr++; 
 					  if (!elemStr.isEmpty())
 					  {
-					    //printf("elemStr1=`%s'\n",elemStr.data());
+					    //printf("elemStr1='%s'\n",elemStr.data());
 					    l->append(elemStr);
 					  }
 					  BEGIN(Start); 
@@ -871,7 +871,7 @@ static void readIncludeFile(const char *incName)
 <GetStrList>[ \t,]+			{
   				          if (!elemStr.isEmpty())
 					  {
-					    //printf("elemStr2=`%s'\n",elemStr.data());
+					    //printf("elemStr2='%s'\n",elemStr.data());
   					    l->append(elemStr);
 					  }
 					  elemStr.resize(0);
@@ -886,7 +886,7 @@ static void readIncludeFile(const char *incName)
 <GetQuotedString>"\""|"\n" 		{ 
                                           // we add a bogus space to signal that the string was quoted. This space will be stripped later on.
                                           tmpString+=" ";
-  					  //printf("Quoted String = `%s'\n",tmpString.data());
+  					  //printf("Quoted String = '%s'\n",tmpString.data());
   					  if (lastState==GetString)
 					  {
 					    (*s)+=configStringRecode(tmpString,encoding,"UTF-8");
@@ -917,7 +917,7 @@ static void readIncludeFile(const char *incName)
 					  else 
 					  {
 					    *b=FALSE; 
-					    config_warn("Invalid value `%s' for "
+					    config_warn("Invalid value '%s' for "
 						 "boolean tag in line %d, file %s; use YES or NO\n",
 						 bs.data(),yyLineNr,yyFileName.data());
 					  }
@@ -1008,7 +1008,7 @@ static void substEnvVarsInString(QCString &s)
   //printf("substEnvVarInString(%s) start\n",s.data());
   while ((i=re.match(s,p,&l))!=-1 || (i=re2.match(s,p,&l))!=-1)
   {
-    //printf("Found environment var s.mid(%d,%d)=`%s'\n",i+2,l-3,s.mid(i+2,l-3).data());
+    //printf("Found environment var s.mid(%d,%d)='%s'\n",i+2,l-3,s.mid(i+2,l-3).data());
     QCString env=portable_getenv(s.mid(i+2,l-3));
     substEnvVarsInString(env); // recursively expand variables if needed.
     s = s.left(i)+env+s.right(s.length()-i-l);
@@ -1205,7 +1205,7 @@ static QCString configFileToString(const char *name)
     QFileInfo fi(name);
     if (!fi.exists() || !fi.isFile())
     {
-      config_err("file `%s' not found\n",name);
+      config_err("file '%s' not found\n",name);
       return "";
     }
     f.setName(name);
@@ -1226,7 +1226,7 @@ static QCString configFileToString(const char *name)
   }
   if (!fileOpened)  
   {
-    config_err("cannot open file `%s' for reading\n",name);
+    config_err("cannot open file '%s' for reading\n",name);
     exit(1);
   }
   return "";
@@ -1404,7 +1404,7 @@ void Config::checkAndCorrect()
     QFileInfo fi(headerFile);
     if (!fi.exists())
     {
-      err("tag HTML_HEADER: header file `%s' "
+      err("tag HTML_HEADER: header file '%s' "
 	  "does not exist\n",headerFile.data());
       exit(1);
     }
@@ -1416,7 +1416,7 @@ void Config::checkAndCorrect()
     QFileInfo fi(footerFile);
     if (!fi.exists())
     {
-      err("tag HTML_FOOTER: footer file `%s' "
+      err("tag HTML_FOOTER: footer file '%s' "
 	  "does not exist\n",footerFile.data());
       exit(1);
     }
@@ -1431,7 +1431,7 @@ void Config::checkAndCorrect()
       QFileInfo fi(MathJaxCodefile);
       if (!fi.exists())
       {
-        err("tag MATHJAX_CODEFILE file `%s' "
+        err("tag MATHJAX_CODEFILE file '%s' "
 	    "does not exist\n",MathJaxCodefile.data());
         exit(1);
       }
@@ -1451,7 +1451,7 @@ void Config::checkAndCorrect()
     QFileInfo fi(latexHeaderFile);
     if (!fi.exists())
     {
-      err("tag LATEX_HEADER: header file `%s' "
+      err("tag LATEX_HEADER: header file '%s' "
 	  "does not exist\n",latexHeaderFile.data());
       exit(1);
     }
@@ -1463,7 +1463,7 @@ void Config::checkAndCorrect()
     QFileInfo fi(latexFooterFile);
     if (!fi.exists())
     {
-      err("tag LATEX_FOOTER: footer file `%s' "
+      err("tag LATEX_FOOTER: footer file '%s' "
 	  "does not exist\n",latexFooterFile.data());
       exit(1);
     }
@@ -1475,7 +1475,7 @@ void Config::checkAndCorrect()
   while (s)
   {
     QFileInfo fi(s);
-    if (!fi.exists()) warn_uncond("tag INCLUDE_PATH: include path `%s' "
+    if (!fi.exists()) warn_uncond("tag INCLUDE_PATH: include path '%s' "
 	                  "does not exist\n",s);
     s=includePath.next();
   }
@@ -1491,7 +1491,7 @@ void Config::checkAndCorrect()
     alias=alias.stripWhiteSpace();
     if (alias.find(re1)!=0 && alias.find(re2)!=0)
     {
-      err("Illegal alias format `%s'. Use \"name=value\" or \"name(n)=value\", where n is the number of arguments\n",
+      err("Illegal alias format '%s'. Use \"name=value\" or \"name(n)=value\", where n is the number of arguments\n",
 	  alias.data());
     }
     s=aliasList.next();
@@ -1525,7 +1525,7 @@ void Config::checkAndCorrect()
   }
   //else if (dotImageFormat!="gif" && dotImageFormat!="png" && dotImageFormat!="jpg")
   //{
-  //  err("Invalid value for DOT_IMAGE_FORMAT: `%s'. Using the default.\n",dotImageFormat.data());
+  //  err("Invalid value for DOT_IMAGE_FORMAT: '%s'. Using the default.\n",dotImageFormat.data());
   //  dotImageFormat = "png";
   //}
 
@@ -1640,7 +1640,7 @@ void Config::checkAndCorrect()
       QFileInfo fi(s);
       if (!fi.exists())
       {
-	warn_uncond("tag INPUT: input source `%s' does not exist\n",s);
+	warn_uncond("tag INPUT: input source '%s' does not exist\n",s);
       }
       s=inputSources.next();
     }
diff --git a/src/constexp.l b/src/constexp.l
index bd42104..c9b984a 100644
--- a/src/constexp.l
+++ b/src/constexp.l
@@ -124,7 +124,7 @@ bool parseconstexp(const char *fileName,int lineNr,const QCString &s)
   constexpYYrestart( yyin, yyscanner );
 
   printlex(yy_flex_debug, TRUE, __FILE__, fileName);
-  //printf("Expression: `%s'\n",s.data());
+  //printf("Expression: '%s'\n",s.data());
 
   constexpYYparse(yyscanner);
 
diff --git a/src/declinfo.l b/src/declinfo.l
index 83f7268..36ef94a 100644
--- a/src/declinfo.l
+++ b/src/declinfo.l
@@ -208,7 +208,7 @@ ID	"$"?([a-z_A-Z\x80-\xFF][a-z_A-Z0-9\x80-\xFF]*)|(@[0-9]+)
 static void addType(yyscan_t yyscanner)
 {
   struct yyguts_t *yyg = (struct yyguts_t*)yyscanner;
-  //printf("addType() yyextra->type=`%s' yyextra->scope=`%s' yyextra->name=`%s'\n",
+  //printf("addType() yyextra->type='%s' yyextra->scope='%s' yyextra->name='%s'\n",
   //       yyextra->type.data(),yyextra->scope.data(),yyextra->name.data());
   if (yyextra->name.isEmpty() && yyextra->scope.isEmpty()) return;
   if (!yyextra->type.isEmpty()) yyextra->type+=" ";
@@ -221,7 +221,7 @@ static void addType(yyscan_t yyscanner)
 static void addTypeName(yyscan_t yyscanner)
 {
   struct yyguts_t *yyg = (struct yyguts_t*)yyscanner;
-  //printf("addTypeName() yyextra->type=`%s' yyextra->scope=`%s' yyextra->name=`%s'\n",
+  //printf("addTypeName() yyextra->type='%s' yyextra->scope='%s' yyextra->name='%s'\n",
   //       yyextra->type.data(),yyextra->scope.data(),yyextra->name.data());
   if (yyextra->name.isEmpty() || 
       yyextra->name.at(yyextra->name.length()-1)==':')  // end of Objective-C keyword => append to yyextra->name not yyextra->type
@@ -266,7 +266,7 @@ void parseFuncDecl(const QCString &decl,const SrcLangExt lang,QCString &cl,QCStr
 
   printlex(yy_flex_debug, TRUE, __FILE__, NULL);
   yyextra->inputString   = decl;
-  //printf("Input=`%s'\n",yyextra->inputString);
+  //printf("Input='%s'\n",yyextra->inputString);
   yyextra->inputPosition      = 0;
   yyextra->classTempListFound = FALSE;
   yyextra->funcTempListFound  = FALSE;
@@ -285,7 +285,7 @@ void parseFuncDecl(const QCString &decl,const SrcLangExt lang,QCString &cl,QCStr
   BEGIN( Start );
   declinfoYYlex(g_yyscanner);
 
-  //printf("yyextra->type=`%s' class=`%s' yyextra->name=`%s' yyextra->args=`%s'\n",
+  //printf("yyextra->type='%s' class='%s' yyextra->name='%s' yyextra->args='%s'\n",
   //        yyextra->type.data(),yyextra->scope.data(),yyextra->name.data(),yyextra->args.data());
 
   int nb = yyextra->name.findRev('[');
@@ -338,7 +338,7 @@ void parseFuncDecl(const QCString &decl,const SrcLangExt lang,QCString &cl,QCStr
     a.prepend(")");
     t=t.left(t.length()-1);
   }
-  //printf("yyextra->type=`%s' class=`%s' yyextra->name=`%s' yyextra->args=`%s'\n",
+  //printf("yyextra->type='%s' class='%s' yyextra->name='%s' yyextra->args='%s'\n",
   //        t.data(),cl.data(),n.data(),a.data());
 
   printlex(yy_flex_debug, FALSE, __FILE__, NULL);
@@ -362,8 +362,8 @@ void dumpDecl(const char *s)
   QCString funcTNames;
   msg("-----------------------------------------\n");
   parseFuncDecl(s,yyextra->className,classTNames,yyextra->type,yyextra->name,yyextra->args,funcTNames);
-  msg("yyextra->type=`%s' class=`%s' classTempl=`%s' yyextra->name=`%s' "
-         "funcTemplateNames=`%s' yyextra->args=`%s'\n",
+  msg("yyextra->type='%s' class='%s' classTempl='%s' yyextra->name='%s' "
+         "funcTemplateNames='%s' yyextra->args='%s'\n",
 	    yyextra->type.data(),yyextra->className.data(),classTNames.data(),
 	    yyextra->name.data(),funcTNames.data(),yyextra->args.data()
 	);
diff --git a/src/defargs.l b/src/defargs.l
index e49ef2e..85878c1 100644
--- a/src/defargs.l
+++ b/src/defargs.l
@@ -367,7 +367,7 @@ RAWEND    ")"[^ \t\(\)\\]{0,16}\"
 					  {
 					    g_curArgTypeName=removeRedundantWhiteSpace(g_curArgTypeName);
 					    g_curArgDefValue=g_curArgDefValue.stripWhiteSpace();
-					    //printf("curArgType=`%s' curArgDefVal=`%s'\n",g_curArgTypeName.data(),g_curArgDefValue.data());
+					    //printf("curArgType='%s' curArgDefVal='%s'\n",g_curArgTypeName.data(),g_curArgDefValue.data());
 					    int l=g_curArgTypeName.length();
 					    if (l>0)
 					    {
@@ -447,7 +447,7 @@ RAWEND    ")"[^ \t\(\)\\]{0,16}\"
 					      a->defval = g_curArgDefValue.copy();
 					      //printf("a->type=%s a->name=%s a->defval=\"%s\"\n",a->type.data(),a->name.data(),a->defval.data());
 					      a->docs   = g_curArgDocs.stripWhiteSpace();
-					      //printf("Argument `%s' `%s' adding docs=`%s'\n",a->type.data(),a->name.data(),a->docs.data());
+					      //printf("Argument '%s' '%s' adding docs='%s'\n",a->type.data(),a->name.data(),a->docs.data());
 					      g_argList->append(a);
 					    }
 					    g_curArgAttrib.resize(0);
@@ -479,7 +479,7 @@ RAWEND    ")"[^ \t\(\)\\]{0,16}\"
 					    g_curArgTypeName+=" []";
 					    g_curArgArray.resize(0);
 					  }
-					  //printf("resolveName `%s'->`%s'\n",yytext,name.data());
+					  //printf("resolveName '%s'->'%s'\n",yytext,name.data());
   					  g_curArgTypeName+=name;
 					}
 <ReadFuncArgType,ReadFuncArgPtr>.	{ 
diff --git a/src/defgen.cpp b/src/defgen.cpp
index ab19c2a..aa9a1da 100644
--- a/src/defgen.cpp
+++ b/src/defgen.cpp
@@ -263,7 +263,7 @@ void generateDEFForMember(MemberDef *md,
         t << memPrefix << "referenceto = {" << endl;
         t << refPrefix << "id = '"
           << rmd->getBodyDef()->getOutputFileBase()
-          << "_1"   // encoded `:' character (see util.cpp:convertNameToFile)
+          << "_1"   // encoded ':' character (see util.cpp:convertNameToFile)
           << rmd->anchor() << "';" << endl;
 
         t << refPrefix << "line = '"
@@ -296,7 +296,7 @@ void generateDEFForMember(MemberDef *md,
         t << memPrefix << "referenceby = {" << endl;
         t << refPrefix << "id = '"
           << rmd->getBodyDef()->getOutputFileBase()
-          << "_1"   // encoded `:' character (see util.cpp:convertNameToFile)
+          << "_1"   // encoded ':' character (see util.cpp:convertNameToFile)
           << rmd->anchor() << "';" << endl;
 
         t << refPrefix << "line = '"
@@ -577,13 +577,13 @@ void generateDEF()
       dir.setPath(QDir::currentDirPath());
       if (!dir.mkdir(outputDirectory))
       {
-        err("tag OUTPUT_DIRECTORY: Output directory `%s' does not "
+        err("tag OUTPUT_DIRECTORY: Output directory '%s' does not "
             "exist and cannot be created\n",outputDirectory.data());
         exit(1);
       }
       else
       {
-        msg("Notice: Output directory `%s' does not exist. "
+        msg("Notice: Output directory '%s' does not exist. "
             "I have created it for you.\n", outputDirectory.data());
       }
       dir.cd(outputDirectory);
diff --git a/src/definition.cpp b/src/definition.cpp
index b9c40f6..3b5fea1 100644
--- a/src/definition.cpp
+++ b/src/definition.cpp
@@ -231,7 +231,7 @@ static void addToMap(const char *name,Definition *d)
   if (!vhdlOpt && index!=-1) symbolName=symbolName.mid(index+2);
   if (!symbolName.isEmpty()) 
   {
-    //printf("******* adding symbol `%s' (%p)\n",symbolName.data(),d);
+    //printf("******* adding symbol '%s' (%p)\n",symbolName.data(),d);
     DefinitionIntf *di=Doxygen::symbolMap->find(symbolName);
     //printf("  addToMap(%p): looking for symbol %s: %p\n",d,symbolName.data(),di);
     if (di==0) // new Symbol
@@ -275,7 +275,7 @@ static void removeFromMap(Definition *d)
   QCString symbolName = d->_symbolName();
   if (!symbolName.isEmpty()) 
   {
-    //printf("******* removing symbol `%s' (%p)\n",symbolName.data(),d);
+    //printf("******* removing symbol '%s' (%p)\n",symbolName.data(),d);
     DefinitionIntf *di=Doxygen::symbolMap->find(symbolName);
     if (di)
     {
@@ -438,7 +438,7 @@ void DefinitionImpl::addSectionsToDefinition(QList<SectionInfo> *anchorList)
   SectionInfo *si;
   for (;(si=it.current());++it)
   {
-    //printf("Add section `%s' to definition `%s'\n",
+    //printf("Add section '%s' to definition '%s'\n",
     //    si->label.data(),name().data());
     SectionInfo *gsi=Doxygen::sectionDict->find(si->label);
     //printf("===== label=%s gsi=%p\n",si->label.data(),gsi);
@@ -594,7 +594,7 @@ void DefinitionImpl::_setDocumentation(const char *d,const char *docFile,int doc
   }
   if (!_docsAlreadyAdded(doc,m_impl->docSignatures))
   {
-    //printf("setting docs for %s: `%s'\n",name().data(),m_doc.data());
+    //printf("setting docs for %s: '%s'\n",name().data(),m_doc.data());
     if (m_impl->details==0)
     {
       m_impl->details = new DocInfo;
@@ -913,7 +913,7 @@ bool readCodeFragment(const char *fileName,
         int pc=0;
         while ((c=*p++)!='{' && c!=':' && c!=0)
         {
-          //printf("parsing char `%c'\n",c);
+          //printf("parsing char '%c'\n",c);
           if (c=='\n')
           {
             lineNr++,col=0;
@@ -1277,7 +1277,7 @@ void DefinitionImpl::writeInlineCode(OutputList &ol,const char *scopeName) const
       //    codeFragment.data(),m_impl->defFileExt.data());
       ParserInterface *pIntf = Doxygen::parserManager->getParser(m_impl->defFileExt);
       pIntf->resetCodeParserState();
-      //printf("Read:\n`%s'\n\n",codeFragment.data());
+      //printf("Read:\n'%s'\n\n",codeFragment.data());
       const MemberDef *thisMd = 0;
       if (definitionType()==TypeMember) thisMd = dynamic_cast <const MemberDef*>(this);
 
diff --git a/src/diagram.cpp b/src/diagram.cpp
index 06480fc..08b49ca 100644
--- a/src/diagram.cpp
+++ b/src/diagram.cpp
@@ -1165,7 +1165,7 @@ void ClassDiagram::writeFigure(FTextStream &output,const char *path,
   t << "  /boxwidth boxwidth str stringwidth pop max def\n";
   t << "} def\n";
   t << "\n";
-  t << "/box % draws a box with text `arg1' at grid pos (arg2,arg3)\n";
+  t << "/box % draws a box with text 'arg1' at grid pos (arg2,arg3)\n";
   t << "{ gsave\n";
   t << "  2 setlinewidth\n";
   t << "  newpath\n";
@@ -1267,7 +1267,7 @@ void ClassDiagram::writeFigure(FTextStream &output,const char *path,
   t << "  stroke\n";
   t << "} def\n";
   t << "\n";
-  t << "/conn % connections the blocks from col `arg1' to `arg2' of row `arg3'\n";
+  t << "/conn % connections the blocks from col 'arg1' to 'arg2' of row 'arg3'\n";
   t << "{\n";
   t << "  /ys exch def\n";
   t << "  /xe exch def\n";
@@ -1337,7 +1337,7 @@ void ClassDiagram::writeFigure(FTextStream &output,const char *path,
     QCString epstopdfArgs(4096);
     epstopdfArgs.sprintf("\"%s.eps\" --outfile=\"%s.pdf\"",
                    epsBaseName.data(),epsBaseName.data());
-    //printf("Converting eps using `%s'\n",epstopdfArgs.data());
+    //printf("Converting eps using '%s'\n",epstopdfArgs.data());
     portable_sysTimerStart();
     if (portable_system("epstopdf",epstopdfArgs)!=0)
     {
diff --git a/src/docparser.cpp b/src/docparser.cpp
index f09a1ee..baa22b4 100644
--- a/src/docparser.cpp
+++ b/src/docparser.cpp
@@ -423,7 +423,7 @@ static void checkArgumentName(const QCString &name)
   {
     QCString aName=name.mid(i,l);
     if (lang==SrcLangExt_Fortran) aName=aName.lower();
-    //printf("aName=`%s'\n",aName.data());
+    //printf("aName='%s'\n",aName.data());
     ArgumentListIterator ali(*al);
     const Argument *a;
     bool found=FALSE;
@@ -432,7 +432,7 @@ static void checkArgumentName(const QCString &name)
       QCString argName = g_memberDef->isDefine() ? a->type : a->name;
       if (lang==SrcLangExt_Fortran) argName=argName.lower();
       argName=argName.stripWhiteSpace();
-      //printf("argName=`%s' aName=%s\n",argName.data(),aName.data());
+      //printf("argName='%s' aName=%s\n",argName.data(),aName.data());
       if (argName.right(3)=="...") argName=argName.left(argName.length()-3);
       if (aName==argName)
       {
@@ -717,7 +717,7 @@ static bool findDocsForMemberOrCompound(const char *commandName,
   const GroupDef     *gd=0;
   const PageDef      *pd=0;
   bool found = getDefs(
-      g_context.find('.')==-1?g_context.data():"", // `find('.') is a hack to detect files
+      g_context.find('.')==-1?g_context.data():"", // find('.') is a hack to detect files
       name,
       args.isEmpty()?0:args.data(),
       md,cd,fd,nd,gd,FALSE,0,TRUE);
@@ -739,7 +739,7 @@ static bool findDocsForMemberOrCompound(const char *commandName,
     {
       fullName.prepend(g_context.left(scopeOffset)+"::");
     }
-    //printf("Trying fullName=`%s'\n",fullName.data());
+    //printf("Trying fullName='%s'\n",fullName.data());
 
     // try class, namespace, group, page, file reference
     cd = Doxygen::classSDict->find(fullName);
@@ -1912,7 +1912,7 @@ DocAnchor::DocAnchor(DocNode *parent,const QCString &id,bool newAnchor)
     }
     else 
     {
-      warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid cite anchor id `%s'",qPrint(id));
+      warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid cite anchor id '%s'",qPrint(id));
       m_anchor = "invalid";
       m_file = "invalid";
     }
@@ -1937,7 +1937,7 @@ DocAnchor::DocAnchor(DocNode *parent,const QCString &id,bool newAnchor)
     }
     else
     {
-      warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid anchor id `%s'",qPrint(id));
+      warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid anchor id '%s'",qPrint(id));
       m_anchor = "invalid";
       m_file = "invalid";
     }
@@ -2488,7 +2488,7 @@ DocRef::DocRef(DocNode *parent,const QCString &target,const QCString &context) :
     }
   }
   m_text = target;
-  warn_doc_error(g_fileName,doctokenizerYYlineno,"unable to resolve reference to `%s' for \\ref command",
+  warn_doc_error(g_fileName,doctokenizerYYlineno,"unable to resolve reference to '%s' for \\ref command",
            qPrint(target)); 
 }
 
@@ -2586,7 +2586,7 @@ DocCite::DocCite(DocNode *parent,const QCString &target,const QCString &) //cont
   }
   else if (cite==0)
   {
-    warn_doc_error(g_fileName,doctokenizerYYlineno,"unable to resolve reference to `%s' for \\cite command",
+    warn_doc_error(g_fileName,doctokenizerYYlineno,"unable to resolve reference to '%s' for \\cite command",
              qPrint(target));
   }
   else
@@ -2629,7 +2629,7 @@ DocLink::DocLink(DocNode *parent,const QCString &target)
   }
 
   // bogus link target
-  warn_doc_error(g_fileName,doctokenizerYYlineno,"unable to resolve link to `%s' for \\link command",
+  warn_doc_error(g_fileName,doctokenizerYYlineno,"unable to resolve link to '%s' for \\link command",
          qPrint(target)); 
 }
 
@@ -3241,7 +3241,7 @@ DocHtmlCaption::DocHtmlCaption(DocNode *parent,const HtmlAttribList &attribs)
       }
       else
       {
-        warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid caption id `%s'",qPrint(opt->value));
+        warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid caption id '%s'",qPrint(opt->value));
       }
     }
     else // copy attribute
@@ -5378,7 +5378,7 @@ int DocPara::handleCommand(const QCString &cmdName, const int tok)
   {
     case CMD_UNKNOWN:
       m_children.append(new DocWord(this,TK_COMMAND_CHAR(tok) + cmdName));
-      warn_doc_error(g_fileName,doctokenizerYYlineno,"Found unknown command `\\%s'",qPrint(cmdName));
+      warn_doc_error(g_fileName,doctokenizerYYlineno,"Found unknown command '\\%s'",qPrint(cmdName));
       break;
     case CMD_EMPHASIS:
       m_children.append(new DocStyleChange(this,g_nodeStack.count(),DocStyleChange::Italic,TRUE));
@@ -7032,7 +7032,7 @@ void DocText::parse()
             m_children.append(new DocSymbol(this,DocSymbol::Sym_Equal));
             break;
           default:
-            warn_doc_error(g_fileName,doctokenizerYYlineno,"Unexpected command `%s' found",
+            warn_doc_error(g_fileName,doctokenizerYYlineno,"Unexpected command '%s' found",
                       qPrint(g_token->name));
             break;
         }
@@ -7096,7 +7096,7 @@ void DocRoot::parse()
           }
           else
           {
-            warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid paragraph id `%s'; ignoring paragraph",qPrint(g_token->sectionId));
+            warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid paragraph id '%s'; ignoring paragraph",qPrint(g_token->sectionId));
             retval = 0;
           }
         }
@@ -7125,7 +7125,7 @@ void DocRoot::parse()
           }
           else
           {
-            warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid subsubsection id `%s'; ignoring subsubsection",qPrint(g_token->sectionId));
+            warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid subsubsection id '%s'; ignoring subsubsection",qPrint(g_token->sectionId));
             retval = 0;
           }
         }
@@ -7154,7 +7154,7 @@ void DocRoot::parse()
           }
           else
           {
-            warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid subsection id `%s'; ignoring subsection",qPrint(g_token->sectionId));
+            warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid subsection id '%s'; ignoring subsection",qPrint(g_token->sectionId));
             retval = 0;
           }
         }
@@ -7194,7 +7194,7 @@ void DocRoot::parse()
       }
       else
       {
-        warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid section id `%s'; ignoring section",qPrint(g_token->sectionId));
+        warn_doc_error(g_fileName,doctokenizerYYlineno,"Invalid section id '%s'; ignoring section",qPrint(g_token->sectionId));
         retval = 0;
       }
     }
diff --git a/src/doctokenizer.l b/src/doctokenizer.l
index 97ab926..194327c 100644
--- a/src/doctokenizer.l
+++ b/src/doctokenizer.l
@@ -157,7 +157,7 @@ static int computeIndent(const char *str,int length)
 
 static void processSection()
 {
-  //printf("%s: found section/anchor with name `%s'\n",g_fileName.data(),g_secLabel.data());
+  //printf("%s: found section/anchor with name '%s'\n",g_fileName.data(),g_secLabel.data());
   QCString file;
   if (g_memberGroup)
   {
@@ -1343,7 +1343,7 @@ REFWORD_NOCV   {FILEMASK}|{LABELID}|{REFWORD2_NOCV}|{REFWORD3}|{REFWORD4_NOCV}
                          BEGIN(St_Sections);
 		       }
 <St_SecTitle,St_SecLabel1,St_SecLabel2>. {
-                         warn(g_fileName,yylineno,"Unexpected character `%s' while looking for section label or title",yytext); 
+                         warn(g_fileName,yylineno,"Unexpected character '%s' while looking for section label or title",yytext); 
                        }
 
 <St_Snippet>[^\n]+     |
@@ -1358,12 +1358,12 @@ REFWORD_NOCV   {FILEMASK}|{LABELID}|{REFWORD2_NOCV}|{REFWORD3}|{REFWORD4_NOCV}
                          warn(g_fileName,yylineno,"Unexpected new line character"); 
 		       }
 <*>[\\@<>&$#%~"=]      { /* unescaped special character */
-                         //warn(g_fileName,yylineno,"Unexpected character `%s', assuming command \\%s was meant.",yytext,yytext); 
+                         //warn(g_fileName,yylineno,"Unexpected character '%s', assuming command \\%s was meant.",yytext,yytext); 
 			 g_token->name = yytext;
 			 return TK_COMMAND_SEL();
                        }
 <*>.                   { 
-                         warn(g_fileName,yylineno,"Unexpected character `%s'",yytext);
+                         warn(g_fileName,yylineno,"Unexpected character '%s'",yytext);
 		       }
 %%
 
@@ -1375,7 +1375,7 @@ void doctokenizerYYFindSections(const char *input,Definition *d,
   if (input==0) return;
   printlex(yy_flex_debug, TRUE, __FILE__, fileName);
   g_inputString = input;
-  //printf("parsing --->`%s'<---\n",input);
+  //printf("parsing --->'%s'<---\n",input);
   g_inputPos    = 0;
   g_definition  = d;
   g_memberGroup = mg;
diff --git a/src/dotclassgraph.cpp b/src/dotclassgraph.cpp
index 308be4b..3f5d228 100644
--- a/src/dotclassgraph.cpp
+++ b/src/dotclassgraph.cpp
@@ -49,7 +49,7 @@ void DotClassGraph::addClass(const ClassDef *cd,DotNode *n,int prot,
   {
     className=cd->displayName();
   }
-  //printf("DotClassGraph::addClass(class=`%s',parent=%s,prot=%d,label=%s,dist=%d,usedName=%s,templSpec=%s,base=%d)\n",
+  //printf("DotClassGraph::addClass(class='%s',parent=%s,prot=%d,label=%s,dist=%d,usedName=%s,templSpec=%s,base=%d)\n",
   //                                 className.data(),n->label().data(),prot,label,distance,usedName,templSpec,base);
   DotNode *bn = m_usedNodes->find(className);
   if (bn) // class already inserted
@@ -100,7 +100,7 @@ void DotClassGraph::addClass(const ClassDef *cd,DotNode *n,int prot,
     }
     bn->setDistance(distance);
     m_usedNodes->insert(className,bn);
-    //printf(" add new child node `%s' to %s hidden=%d url=%s\n",
+    //printf(" add new child node '%s' to %s hidden=%d url=%s\n",
     //    className.data(),n->label().data(),cd->isHidden(),tmp_url.data());
 
     buildGraph(cd,bn,base,distance+1);
@@ -253,7 +253,7 @@ void DotClassGraph::buildGraph(const ClassDef *cd,DotNode *n,bool base,int dista
       BaseClassDef *bcd;
       for ( ; (bcd=bcli.current()) ; ++bcli )
       {
-        //printf("-------- inheritance relation %s->%s templ=`%s'\n",
+        //printf("-------- inheritance relation %s->%s templ='%s'\n",
         //            cd->name().data(),bcd->classDef->name().data(),bcd->templSpecifiers.data());
         addClass(bcd->classDef,n,bcd->prot,0,bcd->usedName,
           bcd->templSpecifiers,base,distance); 
@@ -374,7 +374,7 @@ void DotClassGraph::buildGraph(const ClassDef *cd,DotNode *n,bool base,int dista
 
 DotClassGraph::DotClassGraph(const ClassDef *cd,GraphType t)
 {
-  //printf("--------------- DotClassGraph::DotClassGraph `%s'\n",cd->displayName().data());
+  //printf("--------------- DotClassGraph::DotClassGraph '%s'\n",cd->displayName().data());
   m_graphType = t;
   QCString tmp_url="";
   if (cd->isLinkable() && !cd->isHidden()) 
diff --git a/src/dotgfxhierarchytable.cpp b/src/dotgfxhierarchytable.cpp
index 0082b7e..0a7942f 100644
--- a/src/dotgfxhierarchytable.cpp
+++ b/src/dotgfxhierarchytable.cpp
@@ -106,7 +106,7 @@ void DotGfxHierarchyTable::writeGraph(FTextStream &out,
 
 void DotGfxHierarchyTable::addHierarchy(DotNode *n,const ClassDef *cd,bool hideSuper)
 {
-  //printf("addHierarchy `%s' baseClasses=%d\n",cd->name().data(),cd->baseClasses()->count());
+  //printf("addHierarchy '%s' baseClasses=%d\n",cd->name().data(),cd->baseClasses()->count());
   if (cd->subClasses())
   {
     BaseClassListIterator bcli(*cd->subClasses());
@@ -114,11 +114,11 @@ void DotGfxHierarchyTable::addHierarchy(DotNode *n,const ClassDef *cd,bool hideS
     for ( ; (bcd=bcli.current()) ; ++bcli )
     {
       ClassDef *bClass=bcd->classDef; 
-      //printf("  Trying sub class=`%s' usedNodes=%d\n",bClass->name().data(),m_usedNodes->count());
+      //printf("  Trying sub class='%s' usedNodes=%d\n",bClass->name().data(),m_usedNodes->count());
       if (bClass->isVisibleInHierarchy() && hasVisibleRoot(bClass->baseClasses()))
       {
         DotNode *bn;
-        //printf("  Node `%s' Found visible class=`%s'\n",n->label().data(),
+        //printf("  Node '%s' Found visible class='%s'\n",n->label().data(),
         //                                              bClass->name().data());
         if ((bn=m_usedNodes->find(bClass->name()))) // node already present 
         {
diff --git a/src/dotincldepgraph.cpp b/src/dotincldepgraph.cpp
index c968b68..23588db 100644
--- a/src/dotincldepgraph.cpp
+++ b/src/dotincldepgraph.cpp
@@ -29,7 +29,7 @@ void DotInclDepGraph::buildGraph(DotNode *n,const FileDef *fd,int distance)
     {
       const FileDef *bfd = ii->fileDef;
       QCString in = ii->includeName;
-      //printf(">>>> in=`%s' bfd=%p\n",ii->includeName.data(),bfd);
+      //printf(">>>> in='%s' bfd=%p\n",ii->includeName.data(),bfd);
       bool doc=TRUE,src=FALSE;
       if (bfd)
       {
diff --git a/src/dotnode.cpp b/src/dotnode.cpp
index 41d5f06..ae06fb2 100644
--- a/src/dotnode.cpp
+++ b/src/dotnode.cpp
@@ -907,7 +907,7 @@ void DotNode::renumberNodes(int &number)
 const DotNode *DotNode::findDocNode() const
 {
   if (!m_url.isEmpty()) return this;
-  //printf("findDocNode(): `%s'\n",m_label.data());
+  //printf("findDocNode(): '%s'\n",m_label.data());
   if (m_parents)
   {
     QListIterator<DotNode> dnli(*m_parents);
diff --git a/src/dotrunner.cpp b/src/dotrunner.cpp
index 22a0081..3a621c7 100644
--- a/src/dotrunner.cpp
+++ b/src/dotrunner.cpp
@@ -41,7 +41,7 @@ static void checkPngResult(const char *imgName)
     {
       if (!(data[1]=='P' && data[2]=='N' && data[3]=='G'))
       {
-        err("Image `%s' produced by dot is not a valid PNG!\n"
+        err("Image '%s' produced by dot is not a valid PNG!\n"
           "You should either select a different format "
           "(DOT_IMAGE_FORMAT in the config file) or install a more "
           "recent version of graphviz (1.7+)\n",imgName
@@ -50,13 +50,13 @@ static void checkPngResult(const char *imgName)
     }
     else
     {
-      err("Could not read image `%s' generated by dot!\n",imgName);
+      err("Could not read image '%s' generated by dot!\n",imgName);
     }
     fclose(f);
   }
   else
   {
-    err("Could not open image `%s' generated by dot!\n",imgName);
+    err("Could not open image '%s' generated by dot!\n",imgName);
   }
 }
 
diff --git a/src/doxygen.cpp b/src/doxygen.cpp
index 960b420..6bf67a0 100644
--- a/src/doxygen.cpp
+++ b/src/doxygen.cpp
@@ -805,7 +805,7 @@ static void buildFileList(Entry *root)
     {
       const char *fn = root->fileName.data();
       QCString text(4096);
-      text.sprintf("the name `%s' supplied as "
+      text.sprintf("the name '%s' supplied as "
           "the argument in the \\file statement ",
           qPrint(root->name));
       if (ambig) // name is ambiguous
@@ -858,7 +858,7 @@ static void addIncludeFile(ClassDef *cd,FileDef *ifd,Entry *root)
        )
     { // explicit request
       QCString text;
-      text.sprintf("the name `%s' supplied as "
+      text.sprintf("the name '%s' supplied as "
                   "the argument of the \\class, \\struct, \\union, or \\include command ",
                   qPrint(includeFile)
                  );
@@ -1288,7 +1288,7 @@ static void addClassToContext(Entry *root)
     QCString namespaceName;
     extractNamespaceName(fullName,className,namespaceName);
 
-    //printf("New class: fullname %s namespace `%s' name=`%s' brief=`%s' docs=`%s'\n",
+    //printf("New class: fullname %s namespace '%s' name='%s' brief='%s' docs='%s'\n",
     //    fullName.data(),namespaceName.data(),className.data(),root->brief.data(),root->doc.data());
 
     QCString tagName;
@@ -1321,7 +1321,7 @@ static void addClassToContext(Entry *root)
     }
     cd=createClassDef(tagInfo?tagName:root->fileName,root->startLine,root->startColumn,
         fullName,sec,tagName,refFileName,TRUE,root->spec&Entry::Enum);
-    Debug::print(Debug::Classes,0,"  New class `%s' (sec=0x%08x)! #tArgLists=%d tagInfo=%p\n",
+    Debug::print(Debug::Classes,0,"  New class '%s' (sec=0x%08x)! #tArgLists=%d tagInfo=%p\n",
         qPrint(fullName),sec,root->tArgLists ? (int)root->tArgLists->count() : -1, tagInfo);
     cd->setDocumentation(root->doc,root->docFile,root->docLine); // copy docs to definition
     cd->setBriefDescription(root->brief,root->briefFile,root->briefLine);
@@ -1369,7 +1369,7 @@ static void addClassToContext(Entry *root)
   }
   if (fd && (root->section & Entry::COMPOUND_MASK))
   {
-    //printf(">> Inserting class `%s' in file `%s' (root->fileName=`%s')\n",
+    //printf(">> Inserting class '%s' in file '%s' (root->fileName='%s')\n",
     //    cd->name().data(),
     //    fd->name().data(),
     //    root->fileName.data()
@@ -1863,7 +1863,7 @@ static const NamespaceDef *findUsedNamespace(const NamespaceSDict *unl,
     {
       QCString uScope=und->name()+"::";
       usingNd = getResolvedNamespace(uScope+name);
-      //printf("Also trying with scope=`%s' usingNd=%p\n",(uScope+name).data(),usingNd);
+      //printf("Also trying with scope='%s' usingNd=%p\n",(uScope+name).data(),usingNd);
     }
   }
   return usingNd;
@@ -1900,7 +1900,7 @@ static void findUsingDirectives(Entry *root)
         }
       }
 
-      // find the scope in which the `using' namespace is defined by prepending
+      // find the scope in which the 'using' namespace is defined by prepending
       // the possible scopes in which the using statement was found, starting
       // with the most inner scope and going to the most outer scope (i.e.
       // file scope).
@@ -1910,7 +1910,7 @@ static void findUsingDirectives(Entry *root)
         QCString scope=scopeOffset>0 ?
                       nsName.left(scopeOffset)+"::" : QCString();
         usingNd = getResolvedNamespace(scope+name);
-        //printf("Trying with scope=`%s' usingNd=%p\n",(scope+name).data(),usingNd);
+        //printf("Trying with scope='%s' usingNd=%p\n",(scope+name).data(),usingNd);
         if (scopeOffset==0)
         {
           scopeOffset=-1;
@@ -2059,7 +2059,7 @@ static void findUsingDeclarations(Entry *root)
       }
 
       // Assume the using statement was used to import a class.
-      // Find the scope in which the `using' namespace is defined by prepending
+      // Find the scope in which the 'using' namespace is defined by prepending
       // the possible scopes in which the using statement was found, starting
       // with the most inner scope and going to the most outer scope (i.e.
       // file scope).
@@ -2080,7 +2080,7 @@ static void findUsingDeclarations(Entry *root)
       //printf("%s -> %p\n",root->name.data(),usingCd);
       if (usingCd==0) // definition not in the input => add an artificial class
       {
-        Debug::print(Debug::Classes,0,"  New using class `%s' (sec=0x%08x)! #tArgLists=%d\n",
+        Debug::print(Debug::Classes,0,"  New using class '%s' (sec=0x%08x)! #tArgLists=%d\n",
              qPrint(name),root->section,root->tArgLists ? (int)root->tArgLists->count() : -1);
         usingCd = createClassDef(
                      "<using>",1,1,
@@ -2267,7 +2267,7 @@ static MemberDef *addVariableToClass(
   }
   Debug::print(Debug::Variables,0,
       "  class variable:\n"
-      "    `%s' `%s'::`%s' `%s' prot=`%d ann=%d init=`%s'\n",
+      "    '%s' '%s'::'%s' '%s' prot=%d ann=%d init='%s'\n",
       qPrint(root->type),
       qPrint(qualScope),
       qPrint(name),
@@ -2436,7 +2436,7 @@ static MemberDef *addVariableToFile(
 {
   Debug::print(Debug::Variables,0,
       "  global variable:\n"
-      "    file='%s' type=`%s' scope=`%s' name=`%s' args=`%s' prot=`%d mtype=%d lang=%d\n",
+      "    file='%s' type='%s' scope='%s' name='%s' args='%s' prot=`%d mtype=%d lang=%d\n",
       qPrint(root->fileName),
       qPrint(root->type),
       qPrint(scope),
@@ -2837,7 +2837,7 @@ static void addVariable(Entry *root,int isFuncPtr=-1)
 
     Debug::print(Debug::Variables,0,
                   "VARIABLE_SEC: \n"
-                  "  type=`%s' name=`%s' args=`%s' bodyLine=`%d' mGrpId=%d relates=%s\n",
+                  "  type='%s' name='%s' args='%s' bodyLine=%d mGrpId=%d relates='%s'\n",
                    qPrint(root->type),
                    qPrint(root->name),
                    qPrint(root->args),
@@ -2863,7 +2863,7 @@ static void addVariable(Entry *root,int isFuncPtr=-1)
         root->name=root->args.mid(i,l);
         root->args=root->args.mid(i+l,root->args.find(')',i+l)-i-l);
       }
-      //printf("new: type=`%s' name=`%s' args=`%s'\n",
+      //printf("new: type='%s' name='%s' args='%s'\n",
       //    root->type.data(),root->name.data(),root->args.data());
     }
     else
@@ -3018,7 +3018,7 @@ static void addVariable(Entry *root,int isFuncPtr=-1)
         }
       }
 
-      //printf("name=`%s' scope=%s scope.right=%s\n",
+      //printf("name='%s' scope=%s scope.right=%s\n",
       //                   name.data(),scope.data(),
       //                   scope.right(scope.length()-si).data());
       addVariableToClass(root,   // entry
@@ -3201,8 +3201,8 @@ static void addInterfaceOrServiceToServiceOrSingleton(
 
   Debug::print(Debug::Functions,0,
       "  Interface Member:\n"
-      "    `%s' `%s' proto=%d\n"
-      "    def=`%s'\n",
+      "    '%s' '%s' proto=%d\n"
+      "    def='%s'\n",
       qPrint(root->type),
       qPrint(rname),
       root->proto,
@@ -3244,7 +3244,7 @@ static void buildInterfaceAndServiceList(Entry *root)
   {
     Debug::print(Debug::Functions,0,
                  "EXPORTED_INTERFACE_SEC:\n"
-                 "  `%s' `%s'::`%s' `%s' relates=`%s' relatesType=`%d' file=`%s' line=`%d' bodyLine=`%d' #tArgLists=%d mGrpId=%d spec=%lld proto=%d docFile=%s\n",
+                 "  '%s' '%s'::'%s' '%s' relates='%s' relatesType='%d' file='%s' line='%d' bodyLine='%d' #tArgLists=%d mGrpId=%d spec=%lld proto=%d docFile=%s\n",
                  qPrint(root->type),
                  qPrint(root->parent()->name),
                  qPrint(root->name),
@@ -3347,7 +3347,7 @@ static void addMethodToClass(Entry *root,ClassDef *cd,
     fileName = root->tagInfo->tagName;
   }
 
-  //printf("root->name=`%s; root->args=`%s' root->argList=`%s'\n",
+  //printf("root->name='%s; root->args='%s' root->argList='%s'\n",
   //    root->name.data(),root->args.data(),argListToString(root->argList).data()
   //   );
 
@@ -3448,8 +3448,8 @@ static void addMethodToClass(Entry *root,ClassDef *cd,
 
   Debug::print(Debug::Functions,0,
       "  Func Member:\n"
-      "    `%s' `%s'::`%s' `%s' proto=%d\n"
-      "    def=`%s'\n",
+      "    '%s' '%s'::'%s' '%s' proto=%d\n"
+      "    def='%s'\n",
       qPrint(root->type),
       qPrint(qualScope),
       qPrint(rname),
@@ -3489,7 +3489,7 @@ static void buildFunctionList(Entry *root)
   {
     Debug::print(Debug::Functions,0,
                  "FUNCTION_SEC:\n"
-                 "  `%s' `%s'::`%s' `%s' relates=`%s' relatesType=`%d' file=`%s' line=`%d' bodyLine=`%d' #tArgLists=%d mGrpId=%d spec=%lld proto=%d docFile=%s\n",
+                 "  '%s' '%s'::'%s' '%s' relates='%s' relatesType='%d' file='%s' line='%d' bodyLine='%d' #tArgLists=%d mGrpId=%d spec=%lld proto=%d docFile=%s\n",
                  qPrint(root->type),
                  qPrint(root->parent()->name),
                  qPrint(root->name),
@@ -3749,7 +3749,7 @@ static void buildFunctionList(Entry *root)
         if (!found) /* global function is unique with respect to the file */
         {
           Debug::print(Debug::Functions,0,"  --> new function %s found!\n",qPrint(rname));
-          //printf("New function type=`%s' name=`%s' args=`%s' bodyLine=%d\n",
+          //printf("New function type='%s' name='%s' args='%s' bodyLine=%d\n",
           //       root->type.data(),rname.data(),root->args.data(),root->bodyLine);
 
           // new global function
@@ -3827,8 +3827,8 @@ static void buildFunctionList(Entry *root)
           }
           Debug::print(Debug::Functions,0,
                      "  Global Function:\n"
-                     "    `%s' `%s'::`%s' `%s' proto=%d\n"
-                     "    def=`%s'\n",
+                     "    '%s' '%s'::'%s' '%s' proto=%d\n"
+                     "    def='%s'\n",
                      qPrint(root->type),
                      qPrint(root->parent()->name),
                      qPrint(rname),
@@ -3894,7 +3894,7 @@ static void buildFunctionList(Entry *root)
           }
         }
 
-        //printf("unrelated function %d `%s' `%s' `%s'\n",
+        //printf("unrelated function %d '%s' '%s' '%s'\n",
         //    root->parent->section,root->type.data(),rname.data(),root->args.data());
       }
       else
@@ -3921,7 +3921,7 @@ static void findFriends()
   MemberName *fn;
   for (;(fn=fnli.current());++fnli) // for each global function name
   {
-    //printf("Function name=`%s'\n",fn->memberName());
+    //printf("Function name='%s'\n",fn->memberName());
     MemberName *mn;
     if ((mn=Doxygen::memberNameSDict->find(fn->memberName())))
     { // there are members with the same name
@@ -4148,7 +4148,7 @@ static void transferRelatedFunctionDocumentation()
     /* find a matching function declaration and definition for this function */
     for (mni.toFirst();(md=mni.current());++mni) // for each global function
     {
-      //printf("  Function `%s'\n",md->name().data());
+      //printf("  Function '%s'\n",md->name().data());
       MemberName *rmn;
       if ((rmn=Doxygen::memberNameSDict->find(md->name()))) // check if there is a member with the same name
       {
@@ -4157,7 +4157,7 @@ static void transferRelatedFunctionDocumentation()
         MemberNameIterator rmni(*rmn);
         for (rmni.toFirst();(rmd=rmni.current());++rmni) // for each member with the same name
         {
-          //printf("  Member found: related=`%d'\n",rmd->isRelated());
+          //printf("  Member found: related='%d'\n",rmd->isRelated());
           if ((rmd->isRelated() || rmd->isForeign()) && // related function
               !md->isAlias() && !rmd->isAlias() &&
               matchArguments2( md->getOuterScope(), md->getFileDef(), md->argumentList(),
@@ -4166,7 +4166,7 @@ static void transferRelatedFunctionDocumentation()
                              )
              )
           {
-            //printf("  Found related member `%s'\n",md->name().data());
+            //printf("  Found related member '%s'\n",md->name().data());
             if (rmd->relatedAlso())
               md->setRelatedAlso(rmd->relatedAlso());
             else if (rmd->isForeign())
@@ -4346,7 +4346,7 @@ static void findUsedClassesForClass(Entry *root,
                 if (arg->name==usedName) // type is a template argument
                 {
                   found=TRUE;
-                  Debug::print(Debug::Classes,0,"    New used class `%s'\n", qPrint(usedName));
+                  Debug::print(Debug::Classes,0,"    New used class '%s'\n", qPrint(usedName));
 
                   ClassDef *usedCd = Doxygen::hiddenClasses->find(usedName);
                   if (usedCd==0)
@@ -4363,7 +4363,7 @@ static void findUsedClassesForClass(Entry *root,
                     Doxygen::hiddenClasses->append(usedName,usedCd);
                   }
                   if (isArtificial) usedCd->setArtificial(TRUE);
-                  Debug::print(Debug::Classes,0,"      Adding used class `%s' (1)\n", qPrint(usedCd->name()));
+                  Debug::print(Debug::Classes,0,"      Adding used class '%s' (1)\n", qPrint(usedCd->name()));
                   instanceCd->addUsedClass(usedCd,md->name(),md->protection());
                   usedCd->addUsedByClass(instanceCd,md->name(),md->protection());
                 }
@@ -4379,7 +4379,7 @@ static void findUsedClassesForClass(Entry *root,
               if (usedCd)
               {
                 found=TRUE;
-                Debug::print(Debug::Classes,0,"    Adding used class `%s' (2)\n", qPrint(usedCd->name()));
+                Debug::print(Debug::Classes,0,"    Adding used class '%s' (2)\n", qPrint(usedCd->name()));
                 instanceCd->addUsedClass(usedCd,md->name(),md->protection()); // class exists
                 usedCd->addUsedByClass(instanceCd,md->name(),md->protection());
               }
@@ -4399,7 +4399,7 @@ static void findUsedClassesForClass(Entry *root,
               {
                 type+=md->argsString();
               }
-              Debug::print(Debug::Classes,0,"  New undocumented used class `%s'\n", qPrint(type));
+              Debug::print(Debug::Classes,0,"  New undocumented used class '%s'\n", qPrint(type));
               usedCd = createClassDef(
                   masterCd->getDefFileName(),masterCd->getDefLine(),
                   masterCd->getDefColumn(),
@@ -4411,7 +4411,7 @@ static void findUsedClassesForClass(Entry *root,
             if (usedCd)
             {
               if (isArtificial) usedCd->setArtificial(TRUE);
-              Debug::print(Debug::Classes,0,"    Adding used class `%s' (3)\n", qPrint(usedCd->name()));
+              Debug::print(Debug::Classes,0,"    Adding used class '%s' (3)\n", qPrint(usedCd->name()));
               instanceCd->addUsedClass(usedCd,md->name(),md->protection());
               usedCd->addUsedByClass(instanceCd,md->name(),md->protection());
             }
@@ -4675,7 +4675,7 @@ static bool findClassRelation(
 
   QCString biName=bi->name;
   bool explicitGlobalScope=FALSE;
-  //printf("findClassRelation: biName=`%s'\n",biName.data());
+  //printf("findClassRelation: biName='%s'\n",biName.data());
   if (biName.left(2)=="::") // explicit global scope
   {
      biName=biName.right(biName.length()-2);
@@ -4691,7 +4691,7 @@ static bool findClassRelation(
     int scopeOffset=explicitGlobalScope ? 0 : scopeName.length();
     do // try all parent scope prefixes, starting with the largest scope
     {
-      //printf("scopePrefix=`%s' biName=`%s'\n",
+      //printf("scopePrefix='%s' biName='%s'\n",
       //    scopeName.left(scopeOffset).data(),biName.data());
 
       QCString baseClassName=biName;
@@ -4716,7 +4716,7 @@ static bool findClassRelation(
                                           ));
       //printf("baseClassName=%s baseClass=%p cd=%p explicitGlobalScope=%d\n",
       //    baseClassName.data(),baseClass,cd,explicitGlobalScope);
-      //printf("    scope=`%s' baseClassName=`%s' baseClass=%s templSpec=%s\n",
+      //printf("    scope='%s' baseClassName='%s' baseClass=%s templSpec=%s\n",
       //                    cd ? cd->name().data():"<none>",
       //                    baseClassName.data(),
       //                    baseClass?baseClass->name().data():"<none>",
@@ -4849,7 +4849,7 @@ static bool findClassRelation(
         //printf("3. found=%d\n",found);
         if (found)
         {
-          Debug::print(Debug::Classes,0,"    Documented base class `%s' templSpec=%s\n",qPrint(biName),qPrint(templSpec));
+          Debug::print(Debug::Classes,0,"    Documented base class '%s' templSpec=%s\n",qPrint(biName),qPrint(templSpec));
           // add base class to this class
 
           // if templSpec is not empty then we should "instantiate"
@@ -4904,7 +4904,7 @@ static bool findClassRelation(
         else if (mode==Undocumented && (scopeOffset==0 || isATemplateArgument))
         {
           Debug::print(Debug::Classes,0,
-                       "    New undocumented base class `%s' baseClassName=%s templSpec=%s isArtificial=%d\n",
+                       "    New undocumented base class '%s' baseClassName=%s templSpec=%s isArtificial=%d\n",
                        qPrint(biName),qPrint(baseClassName),qPrint(templSpec),isArtificial
                       );
           baseClass=0;
@@ -4964,7 +4964,7 @@ static bool findClassRelation(
         }
         else
         {
-          Debug::print(Debug::Classes,0,"    Base class `%s' not found\n",qPrint(biName));
+          Debug::print(Debug::Classes,0,"    Base class '%s' not found\n",qPrint(biName));
         }
       }
       else
@@ -4989,7 +4989,7 @@ static bool findClassRelation(
       {
         scopeOffset=0;
       }
-      //printf("new scopeOffset=`%d'",scopeOffset);
+      //printf("new scopeOffset='%d'",scopeOffset);
     } while (scopeOffset>=0);
 
     if (parentNode==0)
@@ -5334,8 +5334,8 @@ static void generateXRefPages()
 }
 
 //----------------------------------------------------------------------
-// Copy the documentation in entry `root' to member definition `md' and
-// set the function declaration of the member to `funcDecl'. If the boolean
+// Copy the documentation in entry 'root' to member definition 'md' and
+// set the function declaration of the member to 'funcDecl'. If the boolean
 // over_load is set the standard overload text is added.
 
 static void addMemberDocs(Entry *root,
@@ -5345,7 +5345,7 @@ static void addMemberDocs(Entry *root,
                    NamespaceSDict *
                   )
 {
-  //printf("addMemberDocs: `%s'::`%s' `%s' funcDecl=`%s' mSpec=%d\n",
+  //printf("addMemberDocs: '%s'::'%s' '%s' funcDecl='%s' mSpec=%d\n",
   //     root->parent->name.data(),md->name().data(),md->argsString(),funcDecl,root->spec);
   QCString fDecl=funcDecl;
   // strip extern specifier
@@ -5490,9 +5490,9 @@ static const ClassDef *findClassDefinition(FileDef *fd,NamespaceDef *nd,
 
 
 //----------------------------------------------------------------------
-// Adds the documentation contained in `root' to a global function
-// with name `name' and argument list `args' (for overloading) and
-// function declaration `decl' to the corresponding member definition.
+// Adds the documentation contained in 'root' to a global function
+// with name 'name' and argument list 'args' (for overloading) and
+// function declaration 'decl' to the corresponding member definition.
 
 static bool findGlobalMember(Entry *root,
                            const QCString &namespaceName,
@@ -5547,10 +5547,10 @@ static bool findGlobalMember(Entry *root,
 
       if ((namespaceName.isEmpty() && nd==0) ||  // not in a namespace
           (nd && nd->name()==namespaceName) ||   // or in the same namespace
-          viaUsingDirective                      // member in `using' namespace
+          viaUsingDirective                      // member in 'using' namespace
          )
       {
-        Debug::print(Debug::FindMembers,0,"4. Try to add member `%s' to scope `%s'\n",
+        Debug::print(Debug::FindMembers,0,"4. Try to add member '%s' to scope '%s'\n",
             qPrint(md->name()),qPrint(namespaceName));
 
         NamespaceDef *rnd = 0;
@@ -5646,7 +5646,7 @@ static bool findGlobalMember(Entry *root,
        )
     {
       warn(root->fileName,root->startLine,
-           "documented symbol `%s' was not declared or defined.",decl
+           "documented symbol '%s' was not declared or defined.",decl
           );
     }
   }
@@ -5827,7 +5827,7 @@ static void findMember(Entry *root,
                       )
 {
   Debug::print(Debug::FindMembers,0,
-               "findMember(root=%p,funcDecl=`%s',related=`%s',overload=%d,"
+               "findMember(root=%p,funcDecl='%s',related='%s',overload=%d,"
                "isFunc=%d mGrpId=%d tArgList=%p (#=%d) "
                "spec=%lld lang=%x\n",
                root,qPrint(funcDecl),qPrint(root->relates),overloaded,isFunc,root->mGrpId,
@@ -5896,7 +5896,7 @@ static void findMember(Entry *root,
               " ::","::"
             ).stripWhiteSpace();
 
-  //printf("funcDecl=`%s'\n",funcDecl.data());
+  //printf("funcDecl='%s'\n",funcDecl.data());
   if (isFriend && funcDecl.left(6)=="class ")
   {
     //printf("friend class\n");
@@ -5915,14 +5915,14 @@ static void findMember(Entry *root,
                 funcArgs,funcTempList,exceptions
                );
   }
-  //printf("scopeName=`%s' funcType=`%s' funcName=`%s' funcArgs=`%s'\n",
+  //printf("scopeName='%s' funcType='%s' funcName='%s' funcArgs='%s'\n",
   //    scopeName.data(),funcType.data(),funcName.data(),funcArgs.data());
 
   // the class name can also be a namespace name, we decide this later.
   // if a related class name is specified and the class name could
   // not be derived from the function declaration, then use the
   // related field.
-  //printf("scopeName=`%s' className=`%s' namespaceName=`%s'\n",
+  //printf("scopeName='%s' className='%s' namespaceName='%s'\n",
   //    scopeName.data(),className.data(),namespaceName.data());
   if (!root->relates.isEmpty())
   {                             // related member, prefix user specified scope
@@ -5998,13 +5998,13 @@ static void findMember(Entry *root,
 
   // split scope into a namespace and a class part
   extractNamespaceName(scopeName,className,namespaceName,TRUE);
-  //printf("scopeName=`%s' className=`%s' namespaceName=`%s'\n",
+  //printf("scopeName='%s' className='%s' namespaceName='%s'\n",
   //       scopeName.data(),className.data(),namespaceName.data());
 
   //namespaceName=removeAnonymousScopes(namespaceName);
   if (namespaceName.find('@')!=-1) return; // skip stuff in anonymous namespace...
 
-  //printf("namespaceName=`%s' className=`%s'\n",namespaceName.data(),className.data());
+  //printf("namespaceName='%s' className='%s'\n",namespaceName.data(),className.data());
   // merge class and namespace scopes again
   scopeName.resize(0);
   if (!namespaceName.isEmpty())
@@ -6027,7 +6027,7 @@ static void findMember(Entry *root,
   {
     scopeName=className;
   }
-  //printf("new scope=`%s'\n",scopeName.data());
+  //printf("new scope='%s'\n",scopeName.data());
 
   QCString tempScopeName=scopeName;
   ClassDef *cd=getClass(scopeName);
@@ -6046,7 +6046,7 @@ static void findMember(Entry *root,
   //printf("scopeName=%s cd=%p root->tArgLists=%p result=%s\n",
   //    scopeName.data(),cd,root->tArgLists,tempScopeName.data());
 
-  //printf("scopeName=`%s' className=`%s'\n",scopeName.data(),className.data());
+  //printf("scopeName='%s' className='%s'\n",scopeName.data(),className.data());
   // rebuild the function declaration (needed to get the scope right).
   if (!scopeName.isEmpty() && !isRelated && !isFriend && !Config_getBool(HIDE_SCOPE_NAMES))
   {
@@ -6067,7 +6067,7 @@ static void findMember(Entry *root,
       {
         funcDecl=tempScopeName+"::"+funcName+funcTempList;
       }
-      else // variable => add `argument' list
+      else // variable => add 'argument' list
       {
         funcDecl=tempScopeName+"::"+funcName+funcArgs;
       }
@@ -6081,7 +6081,7 @@ static void findMember(Entry *root,
       {
         funcDecl=funcType+" "+funcName+funcTempList;
       }
-      else // variable => add `argument' list
+      else // variable => add 'argument' list
       {
         funcDecl=funcType+" "+funcName+funcArgs;
       }
@@ -6104,16 +6104,16 @@ static void findMember(Entry *root,
 
   Debug::print(Debug::FindMembers,0,
            "findMember() Parse results:\n"
-           "  namespaceName=`%s'\n"
+           "  namespaceName='%s'\n"
            "  className=`%s`\n"
-           "  funcType=`%s'\n"
-           "  funcSpec=`%s'\n"
-           "  funcName=`%s'\n"
-           "  funcArgs=`%s'\n"
-           "  funcTempList=`%s'\n"
-           "  funcDecl=`%s'\n"
-           "  related=`%s'\n"
-           "  exceptions=`%s'\n"
+           "  funcType='%s'\n"
+           "  funcSpec='%s'\n"
+           "  funcName='%s'\n"
+           "  funcArgs='%s'\n"
+           "  funcTempList='%s'\n"
+           "  funcDecl='%s'\n"
+           "  related='%s'\n"
+           "  exceptions='%s'\n"
            "  isRelated=%d\n"
            "  isMemberOf=%d\n"
            "  isFriend=%d\n"
@@ -6128,7 +6128,7 @@ static void findMember(Entry *root,
   if (!funcName.isEmpty()) // function name is valid
   {
     Debug::print(Debug::FindMembers,0,
-                 "1. funcName=`%s'\n",funcName.data());
+                 "1. funcName='%s'\n",funcName.data());
     if (funcName.left(9)=="operator ") // strip class scope from cast operator
     {
       funcName = substitute(funcName,className+"::","");
@@ -6159,7 +6159,7 @@ static void findMember(Entry *root,
             ClassDef *cd=md->getClassDef();
             Debug::print(Debug::FindMembers,0,
                 "3. member definition found, "
-                "scope needed=`%s' scope=`%s' args=`%s' fileName=%s\n",
+                "scope needed='%s' scope='%s' args='%s' fileName=%s\n",
                 qPrint(scopeName),cd ? qPrint(cd->name()) : "<none>",
                 qPrint(md->argsString()),
                 qPrint(root->fileName));
@@ -6228,7 +6228,7 @@ static void findMember(Entry *root,
               }
 
               Debug::print(Debug::FindMembers,0,
-                  "5. matching `%s'<=>`%s' className=%s namespaceName=%s\n",
+                  "5. matching '%s'<=>'%s' className=%s namespaceName=%s\n",
                   qPrint(argListToString(argList,TRUE)),qPrint(argListToString(root->argList,TRUE)),
                   qPrint(className),qPrint(namespaceName)
                   );
@@ -6482,7 +6482,7 @@ static void findMember(Entry *root,
               declMd ? declMd->protection() : root->protection,
               root->virt,root->stat,Member,
               mtype,tArgList,root->argList,root->metaData);
-          //printf("new specialized member %s args=`%s'\n",md->name().data(),funcArgs.data());
+          //printf("new specialized member %s args='%s'\n",md->name().data(),funcArgs.data());
           md->setTagInfo(root->tagInfo);
           md->setLanguage(root->lang);
           md->setId(root->id);
@@ -6545,7 +6545,7 @@ static void findMember(Entry *root,
           // new overloaded member function
           ArgumentList *tArgList =
             getTemplateArgumentsFromName(cd->name()+"::"+funcName,root->tArgLists);
-          //printf("new related member %s args=`%s'\n",md->name().data(),funcArgs.data());
+          //printf("new related member %s args='%s'\n",md->name().data(),funcArgs.data());
           MemberDef *md=createMemberDef(
               root->fileName,root->startLine,root->startColumn,
               funcType,funcName,funcArgs,exceptions,
@@ -6600,7 +6600,7 @@ static void findMember(Entry *root,
               "  scopeName=%s className=%s\n",qPrint(scopeName),qPrint(className));
       if (className.isEmpty()) className=root->relates;
       ClassDef *cd;
-      //printf("scopeName=`%s' className=`%s'\n",scopeName.data(),className.data());
+      //printf("scopeName='%s' className='%s'\n",scopeName.data(),className.data());
       if ((cd=getClass(scopeName)))
       {
         bool newMember=TRUE; // assume we have a new member
@@ -6673,7 +6673,7 @@ static void findMember(Entry *root,
             funcDecl=funcType + " " + funcName;
           }
 
-          //printf("New related name `%s' `%d'\n",funcName.data(),
+          //printf("New related name '%s' '%d'\n",funcName.data(),
           //    root->argList ? (int)root->argList->count() : -1);
 
           // first note that we pass:
@@ -6714,7 +6714,7 @@ static void findMember(Entry *root,
 
 
 
-          //printf("Related member name=`%s' decl=`%s' bodyLine=`%d'\n",
+          //printf("Related member name='%s' decl='%s' bodyLine='%d'\n",
           //       funcName.data(),funcDecl.data(),root->bodyLine);
 
           // try to find the matching line number of the body from the
@@ -6810,7 +6810,7 @@ static void findMember(Entry *root,
       else
       {
         warn_undoc(root->fileName,root->startLine,
-                   "class `%s' for related function `%s' is not "
+                   "class '%s' for related function '%s' is not "
                    "documented.",
                    className.data(),funcName.data()
                   );
@@ -6820,12 +6820,12 @@ static void findMember(Entry *root,
     {
 localObjCMethod:
       ClassDef *cd;
-      //printf("scopeName=`%s' className=`%s'\n",scopeName.data(),className.data());
+      //printf("scopeName='%s' className='%s'\n",scopeName.data(),className.data());
       if (Config_getBool(EXTRACT_LOCAL_METHODS) && (cd=getClass(scopeName)))
       {
         Debug::print(Debug::FindMembers,0,"4. Local objective C method %s\n"
               "  scopeName=%s className=%s\n",qPrint(root->name),qPrint(scopeName),qPrint(className));
-        //printf("Local objective C method `%s' of class `%s' found\n",root->name.data(),cd->name().data());
+        //printf("Local objective C method '%s' of class '%s' found\n",root->name.data(),cd->name().data());
         MemberDef *md=createMemberDef(
             root->fileName,root->startLine,root->startColumn,
             funcType,funcName,funcArgs,exceptions,
@@ -6877,14 +6877,14 @@ localObjCMethod:
       if (className.isEmpty() && !globMem)
       {
         warn(root->fileName,root->startLine,
-             "class for member `%s' cannot "
+             "class for member '%s' cannot "
              "be found.", funcName.data()
             );
       }
       else if (!className.isEmpty() && !globMem)
       {
         warn(root->fileName,root->startLine,
-             "member `%s' of class `%s' cannot be found",
+             "member '%s' of class '%s' cannot be found",
              funcName.data(),className.data());
       }
     }
@@ -6906,7 +6906,7 @@ static void filterMemberDocumentation(Entry *root)
 {
   int i=-1,l;
   Debug::print(Debug::FindMembers,0,
-      "findMemberDocumentation(): root->type=`%s' root->inside=`%s' root->name=`%s' root->args=`%s' section=%x root->spec=%lld root->mGrpId=%d\n",
+      "findMemberDocumentation(): root->type='%s' root->inside='%s' root->name='%s' root->args='%s' section=%x root->spec=%lld root->mGrpId=%d\n",
       qPrint(root->type),qPrint(root->inside),qPrint(root->name),qPrint(root->args),root->section,root->spec,root->mGrpId
       );
   //printf("root->parent()->name=%s\n",root->parent()->name.data());
@@ -6940,7 +6940,7 @@ static void filterMemberDocumentation(Entry *root)
   //printf("Member %s isFunc=%d\n",root->name.data(),isFunc);
   if (root->section==Entry::MEMBERDOC_SEC)
   {
-    //printf("Documentation for inline member `%s' found args=`%s'\n",
+    //printf("Documentation for inline member '%s' found args='%s'\n",
     //    root->name.data(),root->args.data());
     //if (root->relates.length()) printf("  Relates %s\n",root->relates.data());
     if (root->type.isEmpty())
@@ -6968,7 +6968,7 @@ static void filterMemberDocumentation(Entry *root)
      )
     )
     {
-      //printf("Documentation for member `%s' found args=`%s' excp=`%s'\n",
+      //printf("Documentation for member '%s' found args='%s' excp='%s'\n",
       //    root->name.data(),root->args.data(),root->exception.data());
       //if (root->relates.length()) printf("  Relates %s\n",root->relates.data());
       //printf("Inside=%s\n Relates=%s\n",root->inside.data(),root->relates.data());
@@ -7092,7 +7092,7 @@ static void findEnums(Entry *root)
     bool isGlobal;
     bool isRelated=FALSE;
     bool isMemberOf=FALSE;
-    //printf("Found enum with name `%s' relates=%s\n",root->name.data(),root->relates.data());
+    //printf("Found enum with name '%s' relates=%s\n",root->name.data(),root->relates.data());
     int i;
 
     QCString name;
@@ -7129,7 +7129,7 @@ static void findEnums(Entry *root)
 
     if (cd && !name.isEmpty()) // found a enum inside a compound
     {
-      //printf("Enum `%s'::`%s'\n",cd->name().data(),name.data());
+      //printf("Enum '%s'::'%s'\n",cd->name().data(),name.data());
       fd=0;
       mnsd=Doxygen::memberNameSDict;
       isGlobal=FALSE;
@@ -7270,7 +7270,7 @@ static void addEnumValuesToEnums(Entry *root)
     MemberNameSDict *mnsd=0;
     bool isGlobal;
     bool isRelated=FALSE;
-    //printf("Found enum with name `%s' relates=%s\n",root->name.data(),root->relates.data());
+    //printf("Found enum with name '%s' relates=%s\n",root->name.data(),root->relates.data());
     int i;
 
     QCString name;
@@ -7306,21 +7306,21 @@ static void addEnumValuesToEnums(Entry *root)
 
     if (cd && !name.isEmpty()) // found a enum inside a compound
     {
-      //printf("Enum in class `%s'::`%s'\n",cd->name().data(),name.data());
+      //printf("Enum in class '%s'::'%s'\n",cd->name().data(),name.data());
       fd=0;
       mnsd=Doxygen::memberNameSDict;
       isGlobal=FALSE;
     }
     else if (nd && !nd->name().isEmpty() && nd->name().at(0)!='@') // found enum inside namespace
     {
-      //printf("Enum in namespace `%s'::`%s'\n",nd->name().data(),name.data());
+      //printf("Enum in namespace '%s'::'%s'\n",nd->name().data(),name.data());
       mnsd=Doxygen::functionNameSDict;
       isGlobal=TRUE;
     }
     else // found a global enum
     {
       fd=root->fileDef();
-      //printf("Enum in file `%s': `%s'\n",fd->name().data(),name.data());
+      //printf("Enum in file '%s': '%s'\n",fd->name().data(),name.data());
       mnsd=Doxygen::functionNameSDict;
       isGlobal=TRUE;
     }
@@ -7487,7 +7487,7 @@ static void findEnumDocumentation(Entry *root)
       && root->name.at(0)!='@'        // skip anonymous enums
      )
   {
-    //printf("Found docs for enum with name `%s' in context %s\n",
+    //printf("Found docs for enum with name '%s' in context %s\n",
     //    root->name.data(),root->parent->name.data());
     int i;
     QCString name;
@@ -7496,7 +7496,7 @@ static void findEnumDocumentation(Entry *root)
     {
       name=root->name.right(root->name.length()-i-2); // extract name
       scope=root->name.left(i); // extract scope
-      //printf("Scope=`%s' Name=`%s'\n",scope.data(),name.data());
+      //printf("Scope='%s' Name='%s'\n",scope.data(),name.data());
     }
     else // just the name
     {
@@ -7516,7 +7516,7 @@ static void findEnumDocumentation(Entry *root)
       bool found=FALSE;
       if (cd)
       {
-        //printf("Enum: scope=`%s' name=`%s'\n",cd->name(),name.data());
+        //printf("Enum: scope='%s' name='%s'\n",cd->name(),name.data());
         QCString className=cd->name().copy();
         MemberName *mn=Doxygen::memberNameSDict->find(name);
         if (mn)
@@ -7607,7 +7607,7 @@ static void findEnumDocumentation(Entry *root)
       if (!found)
       {
         warn(root->fileName,root->startLine,
-             "Documentation for undefined enum `%s' found.",
+             "Documentation for undefined enum '%s' found.",
              name.data()
             );
       }
@@ -7733,9 +7733,9 @@ static void vhdlCorrectMemberProperties()
 
 
 //----------------------------------------------------------------------
-// computes the relation between all members. For each member `m'
-// the members that override the implementation of `m' are searched and
-// the member that `m' overrides is searched.
+// computes the relation between all members. For each member 'm'
+// the members that override the implementation of 'm' are searched and
+// the member that 'm' overrides is searched.
 
 static void computeMemberRelations()
 {
@@ -7755,7 +7755,7 @@ static void computeMemberRelations()
         if (mcd && mcd->baseClasses())
         {
           const ClassDef *bmcd = bmd->getClassDef();
-          //printf("Check relation between `%s'::`%s' (%p) and `%s'::`%s' (%p)\n",
+          //printf("Check relation between '%s'::'%s' (%p) and '%s'::'%s' (%p)\n",
           //      mcd->name().data(),md->name().data(),md,
           //       bmcd->name().data(),bmd->name().data(),bmd
           //      );
@@ -7773,7 +7773,7 @@ static void computeMemberRelations()
             //printf("  derived scope\n");
             ArgumentList *bmdAl = bmd->argumentList();
             ArgumentList *mdAl =  md->argumentList();
-            //printf(" Base argList=`%s'\n Super argList=`%s'\n",
+            //printf(" Base argList='%s'\n Super argList='%s'\n",
             //        argListToString(bmdAl.pointer()).data(),
             //        argListToString(mdAl.pointer()).data()
             //      );
@@ -8102,7 +8102,7 @@ static void addSourceReferences()
           (fd->generateSourceFile() || Doxygen::parseSourcesNeeded)
          )
       {
-        //printf("Found member `%s' in file `%s' at line `%d' def=%s\n",
+        //printf("Found member '%s' in file '%s' at line '%d' def=%s\n",
         //    md->name().data(),fd->name().data(),md->getStartBodyLine(),md->getOuterScope()->name().data());
         fd->addSourceRef(md->getStartBodyLine(),md->getOuterScope(),md);
       }
@@ -8127,7 +8127,7 @@ static void addSourceReferences()
           (fd->generateSourceFile() || Doxygen::parseSourcesNeeded)
          )
       {
-        //printf("Found member `%s' in file `%s' at line `%d' def=%s\n",
+        //printf("Found member '%s' in file '%s' at line '%d' def=%s\n",
         //    md->name().data(),fd->name().data(),md->getStartBodyLine(),md->getOuterScope()->name().data());
         fd->addSourceRef(md->getStartBodyLine(),md->getOuterScope(),md);
       }
@@ -8307,7 +8307,7 @@ static void inheritDocumentation()
     MemberDef *md;
     for (;(md=mni.current());++mni)
     {
-      //printf("%04d Member `%s'\n",count++,md->name().data());
+      //printf("%04d Member '%s'\n",count++,md->name().data());
       if (md->documentation().isEmpty() && md->briefDescription().isEmpty())
       { // no documentation yet
         MemberDef *bmd = md->reimplements();
@@ -8600,7 +8600,7 @@ static void findDefineDocumentation(Entry *root)
        root->section==Entry::DEFINE_SEC) && !root->name.isEmpty()
      )
   {
-    //printf("found define `%s' `%s' brief=`%s' doc=`%s'\n",
+    //printf("found define '%s' '%s' brief='%s' doc='%s'\n",
     //       root->name.data(),root->args.data(),root->brief.data(),root->doc.data());
 
     if (root->tagInfo && !root->name.isEmpty()) // define read from a tag file
@@ -8610,7 +8610,7 @@ static void findDefineDocumentation(Entry *root)
                     Public,Normal,FALSE,Member,MemberType_Define,0,0,"");
       md->setTagInfo(root->tagInfo);
       md->setLanguage(root->lang);
-      //printf("Searching for `%s' fd=%p\n",filePathName.data(),fd);
+      //printf("Searching for '%s' fd=%p\n",filePathName.data(),fd);
       md->setFileDef(root->parent()->fileDef());
       //printf("Adding member=%s\n",md->name().data());
       MemberName *mn;
@@ -8955,7 +8955,7 @@ static void resolveUserReferences()
   SectionInfo *si;
   for (;(si=sdi.current());++sdi)
   {
-    //printf("si->label=`%s' si->definition=%s si->fileName=`%s'\n",
+    //printf("si->label='%s' si->definition=%s si->fileName='%s'\n",
     //        si->label.data(),si->definition?si->definition->name().data():"<none>",
     //        si->fileName.data());
     PageDef *pd=0;
@@ -9257,7 +9257,7 @@ static void generateConfigFile(const char *configFile,bool shortList,
     {
       if (!updateOnly)
       {
-        msg("\n\nConfiguration file `%s' created.\n\n",configFile);
+        msg("\n\nConfiguration file '%s' created.\n\n",configFile);
         msg("Now edit the configuration file and enter\n\n");
         if (qstrcmp(configFile,"Doxyfile") || qstrcmp(configFile,"doxyfile"))
           msg("  doxygen %s\n\n",configFile);
@@ -9267,7 +9267,7 @@ static void generateConfigFile(const char *configFile,bool shortList,
       }
       else
       {
-        msg("\n\nConfiguration file `%s' updated.\n\n",configFile);
+        msg("\n\nConfiguration file '%s' updated.\n\n",configFile);
       }
     }
   }
@@ -9330,15 +9330,15 @@ static void readTagFile(Entry *root,const char *tl)
   QFileInfo fi(fileName);
   if (!fi.exists() || !fi.isFile())
   {
-    err("Tag file `%s' does not exist or is not a file. Skipping it...\n",
+    err("Tag file '%s' does not exist or is not a file. Skipping it...\n",
         fileName.data());
     return;
   }
 
   if (!destName.isEmpty())
-    msg("Reading tag file `%s', location `%s'...\n",fileName.data(),destName.data());
+    msg("Reading tag file '%s', location '%s'...\n",fileName.data(),destName.data());
   else
-    msg("Reading tag file `%s'...\n",fileName.data());
+    msg("Reading tag file '%s'...\n",fileName.data());
 
   parseTagFile(root,fi.absFilePath().utf8());
 }
@@ -9697,8 +9697,8 @@ static QCString resolveSymlink(QCString path)
 static QDict<void> g_pathsVisited(1009);
 
 //----------------------------------------------------------------------------
-// Read all files matching at least one pattern in `patList' in the
-// directory represented by `fi'.
+// Read all files matching at least one pattern in 'patList' in the
+// directory represented by 'fi'.
 // The directory is read iff the recusiveFlag is set.
 // The contents of all files is append to the input string
 
@@ -9808,7 +9808,7 @@ int readDir(QFileInfo *fi,
 
 //----------------------------------------------------------------------------
 // read a file or all files in a directory and append their contents to the
-// input string. The names of the files are appended to the `fiList' list.
+// input string. The names of the files are appended to the 'fiList' list.
 
 int readFileOrDirectory(const char *s,
                         FileNameList *fnList,
@@ -10038,7 +10038,7 @@ void readAliases()
       {
         QCString name=alias.left(i).stripWhiteSpace();
         QCString value=alias.right(alias.length()-i-1);
-        //printf("Alias: found name=`%s' value=`%s'\n",name.data(),value.data());
+        //printf("Alias: found name='%s' value='%s'\n",name.data(),value.data());
         if (!name.isEmpty())
         {
           QCString *dn=Doxygen::aliasDict[name];
@@ -10155,13 +10155,13 @@ static void usage(const char *name,const char *versionString)
   msg("    %s -f emoji outputFileName\n\n",name);
   msg("    If - is used for outputFileName doxygen will write to standard output.\n\n");
   msg("If -s is specified the comments of the configuration items in the config file will be omitted.\n");
-  msg("If configName is omitted `Doxyfile' will be used as a default.\n\n");
+  msg("If configName is omitted 'Doxyfile' will be used as a default.\n\n");
   msg("-v print version string\n");
 }
 
 //----------------------------------------------------------------------------
-// read the argument of option `c' from the comment argument list and
-// update the option index `optind'.
+// read the argument of option 'c' from the comment argument list and
+// update the option index 'optind'.
 
 static const char *getArg(int argc,char **argv,int &optind)
 {
@@ -11158,14 +11158,14 @@ void parseInput()
       dir.setPath(QDir::currentDirPath());
       if (!dir.mkdir(outputDirectory))
       {
-        err("tag OUTPUT_DIRECTORY: Output directory `%s' does not "
+        err("tag OUTPUT_DIRECTORY: Output directory '%s' does not "
 	    "exist and cannot be created\n",outputDirectory.data());
         cleanUpDoxygen();
         exit(1);
       }
       else
       {
-	msg("Notice: Output directory `%s' does not exist. "
+	msg("Notice: Output directory '%s' does not exist. "
 	    "I have created it for you.\n", outputDirectory.data());
       }
       dir.cd(outputDirectory);
diff --git a/src/filedef.cpp b/src/filedef.cpp
index 7a3323d..9a82c8a 100644
--- a/src/filedef.cpp
+++ b/src/filedef.cpp
@@ -1395,7 +1395,7 @@ void FileDefImpl::insertMember(MemberDef *md)
       break;
     default:
        err("FileDefImpl::insertMembers(): "
-           "member `%s' with class scope `%s' inserted in file scope `%s'!\n",
+           "member '%s' with class scope '%s' inserted in file scope '%s'!\n",
            md->name().data(),
            md->getClassDef() ? md->getClassDef()->name().data() : "<global>",
            name().data());
diff --git a/src/filename.cpp b/src/filename.cpp
index ae3b596..637fe33 100644
--- a/src/filename.cpp
+++ b/src/filename.cpp
@@ -70,7 +70,7 @@ void FileName::generateDiskNames()
           QCString path = fd->getPath();
           if (!fd->isReference())
           {
-            //printf("i=%d j=%d fd->path=`%s' fd->name=`%s'\n",i,j,fd->path.left(i).data(),fd->name().data());
+            //printf("i=%d j=%d fd->path='%s' fd->name='%s'\n",i,j,fd->path.left(i).data(),fd->name().data());
             if (i==(int)path.length())
             {
               //warning("Input file %s found multiple times!\n"
diff --git a/src/fortrancode.l b/src/fortrancode.l
index 926a3ff..0712afd 100644
--- a/src/fortrancode.l
+++ b/src/fortrancode.l
@@ -269,7 +269,7 @@ static void endCodeLine()
   g_code->endCodeLine();
 }
 
-/*! write a code fragment `text' that may span multiple lines, inserting
+/*! write a code fragment 'text' that may span multiple lines, inserting
  * line numbers for each line.
  */
 static void codifyLines(char *text)
diff --git a/src/fortranscanner.l b/src/fortranscanner.l
index 1076e68..ea75836 100644
--- a/src/fortranscanner.l
+++ b/src/fortranscanner.l
@@ -32,7 +32,7 @@
  *
  * - Do not like constructs like aa{BS} or {BS}bb. Should try to handle blank space
  * with separate rule?: It seems it is often necessary, because we may parse something like 
- * "functionA" or "MyInterface". So constructs like `(^|[ \t])interface({BS_}{ID})?/[ \t\n]'
+ * "functionA" or "MyInterface". So constructs like '(^|[ \t])interface({BS_}{ID})?/[ \t\n]'
  * are desired.
  *
  * - Must track yyLineNr when using REJECT, unput() or similar commands.
diff --git a/src/groupdef.cpp b/src/groupdef.cpp
index 9525053..9baf0aa 100644
--- a/src/groupdef.cpp
+++ b/src/groupdef.cpp
@@ -533,7 +533,7 @@ bool GroupDefImpl::insertMember(MemberDef *md,bool docOnly)
       break;
     default:
       err("GroupDefImpl::insertMembers(): "
-           "member `%s' (typeid=%d) with scope `%s' inserted in group scope `%s'!\n",
+           "member '%s' (typeid=%d) with scope '%s' inserted in group scope '%s'!\n",
            md->name().data(),md->memberType(),
            md->getClassDef() ? md->getClassDef()->name().data() : "",
            name().data());
@@ -651,7 +651,7 @@ bool GroupDefImpl::findGroup(const GroupDef *def) const
 
 void GroupDefImpl::addGroup(const GroupDef *def)
 {
-  //printf("adding group `%s' to group `%s'\n",def->name().data(),name().data());
+  //printf("adding group '%s' to group '%s'\n",def->name().data(),name().data());
   //if (Config_getBool(SORT_MEMBER_DOCS))
   //  groupList->inSort(def);
   //else
@@ -1486,7 +1486,7 @@ void addNamespaceToGroups(Entry *root,NamespaceDef *nd)
   for (;(g=gli.current());++gli)
   {
     GroupDef *gd=0;
-    //printf("group `%s'\n",s->data());
+    //printf("group '%s'\n",s->data());
     if (!g->groupname.isEmpty() && (gd=Doxygen::groupSDict->find(g->groupname)))
     {
       if (gd->addNamespace(nd)) nd->makePartOfGroup(gd);
@@ -1503,7 +1503,7 @@ void addDirToGroups(Entry *root,DirDef *dd)
   for (;(g=gli.current());++gli)
   {
     GroupDef *gd=0;
-    //printf("group `%s'\n",g->groupname.data());
+    //printf("group '%s'\n",g->groupname.data());
     if (!g->groupname.isEmpty() && (gd=Doxygen::groupSDict->find(g->groupname)))
     {
       gd->addDir(dd);
diff --git a/src/htmldocvisitor.cpp b/src/htmldocvisitor.cpp
index e228116..e1ff3e9 100644
--- a/src/htmldocvisitor.cpp
+++ b/src/htmldocvisitor.cpp
@@ -781,7 +781,7 @@ void HtmlDocVisitor::visit(DocInclude *inc)
 
 void HtmlDocVisitor::visit(DocIncOperator *op)
 {
-  //printf("DocIncOperator: type=%d first=%d, last=%d text=`%s'\n",
+  //printf("DocIncOperator: type=%d first=%d, last=%d text='%s'\n",
   //    op->type(),op->isFirst(),op->isLast(),op->text().data());
   if (op->isFirst()) 
   {
diff --git a/src/index.cpp b/src/index.cpp
index 5d6c0a5..0631ee4 100644
--- a/src/index.cpp
+++ b/src/index.cpp
@@ -620,7 +620,7 @@ static void writeDirTreeNode(OutputList &ol, DirDef *dd, int level, FTVHelp* ftv
                (tocExpand &&              // or toc expand and
                 dd->getFiles() && dd->getFiles()->count()>0 // there are files
                );
-  //printf("gd=`%s': pageDict=%d\n",gd->name().data(),gd->pageDict->count());
+  //printf("gd='%s': pageDict=%d\n",gd->name().data(),gd->pageDict->count());
   if (addToIndex)
   {
     Doxygen::indexList->addContentsItem(isDir,dd->shortName(),dd->getReference(),dd->getOutputFileBase(),0,TRUE,TRUE);
@@ -4006,7 +4006,7 @@ static void writeGroupTreeNode(OutputList &ol, GroupDef *gd, int level, FTVHelp*
     }
 
     bool isDir = hasSubGroups || hasSubPages || numSubItems>0;
-    //printf("gd=`%s': pageDict=%d\n",gd->name().data(),gd->pageDict->count());
+    //printf("gd='%s': pageDict=%d\n",gd->name().data(),gd->pageDict->count());
     if (addToIndex)
     {
       Doxygen::indexList->addContentsItem(isDir,gd->groupTitle(),gd->getReference(),gd->getOutputFileBase(),0,isDir,TRUE);
diff --git a/src/latexdocvisitor.cpp b/src/latexdocvisitor.cpp
index a9d2c64..a0bbf73 100644
--- a/src/latexdocvisitor.cpp
+++ b/src/latexdocvisitor.cpp
@@ -559,7 +559,7 @@ void LatexDocVisitor::visit(DocInclude *inc)
 
 void LatexDocVisitor::visit(DocIncOperator *op)
 {
-  //printf("DocIncOperator: type=%d first=%d, last=%d text=`%s'\n",
+  //printf("DocIncOperator: type=%d first=%d, last=%d text='%s'\n",
   //    op->type(),op->isFirst(),op->isLast(),op->text().data());
   if (op->isFirst()) 
   {
diff --git a/src/layout.cpp b/src/layout.cpp
index 30c41f9..38a55f4 100644
--- a/src/layout.cpp
+++ b/src/layout.cpp
@@ -1395,7 +1395,7 @@ class LayoutParser : public QXmlDefaultHandler
       }
       else
       {
-        err("Unexpected start tag `%s' found in scope='%s'!\n",
+        err("Unexpected start tag '%s' found in scope='%s'!\n",
             name.data(),m_scope.data());
       }
       return TRUE;
diff --git a/src/mandocvisitor.cpp b/src/mandocvisitor.cpp
index 7b7194e..997b24e 100644
--- a/src/mandocvisitor.cpp
+++ b/src/mandocvisitor.cpp
@@ -372,7 +372,7 @@ void ManDocVisitor::visit(DocIncOperator *op)
   QCString locLangExt = getFileNameExtension(op->includeFileName());
   if (locLangExt.isEmpty()) locLangExt = m_langExt;
   SrcLangExt langExt = getLanguageFromFileName(locLangExt);
-  //printf("DocIncOperator: type=%d first=%d, last=%d text=`%s'\n",
+  //printf("DocIncOperator: type=%d first=%d, last=%d text='%s'\n",
   //    op->type(),op->isFirst(),op->isLast(),op->text().data());
   if (op->isFirst()) 
   {
diff --git a/src/markdown.cpp b/src/markdown.cpp
index ec04b21..141b736 100644
--- a/src/markdown.cpp
+++ b/src/markdown.cpp
@@ -979,7 +979,7 @@ static int processCodeSpan(GrowBuf &out, const char *data, int /*offset*/, int s
       nl++;
     }
     else if (data[end]=='\'' && nb==1 && (end==size-1 || (end<size-1 && !isIdChar(end+1))))
-    { // look for quoted strings like `some word', but skip strings like `it's cool`
+    { // look for quoted strings like 'some word', but skip strings like `it's cool`
       QCString textFragment;
       convertStringFragment(textFragment,data+nb,end-nb);
       out.addStr("&lsquo;");
diff --git a/src/memberdef.cpp b/src/memberdef.cpp
index 4dca53f..4693bdb 100644
--- a/src/memberdef.cpp
+++ b/src/memberdef.cpp
@@ -929,7 +929,7 @@ static bool writeDefArgumentList(OutputList &ol,const Definition *scope,const Me
 {
   const ArgumentList *defArgList=(md->isDocsForDefinition()) ?
                              md->argumentList() : md->declArgumentList();
-  //printf("writeDefArgumentList `%s' isDocsForDefinition()=%d\n",md->name().data(),md->isDocsForDefinition());
+  //printf("writeDefArgumentList '%s' isDocsForDefinition()=%d\n",md->name().data(),md->isDocsForDefinition());
   if (defArgList==0 || md->isProperty())
   {
     return FALSE; // member has no function like argument list
@@ -1043,7 +1043,7 @@ static bool writeDefArgumentList(OutputList &ol,const Definition *scope,const Me
     }
     if (hasFuncPtrType) // argument type is a function pointer
     {
-      //printf("a->type=`%s' a->name=`%s'\n",a->type.data(),a->name.data());
+      //printf("a->type='%s' a->name='%s'\n",a->type.data(),a->name.data());
       QCString n=a->type.left(vp);
       if (hasFuncPtrType) n=a->type.left(wp);
       if (md->isObjCMethod()) { n.prepend("("); n.append(")"); }
@@ -1560,7 +1560,7 @@ void MemberDefImpl::IMPL::init(Definition *def,
  * \param e  A string representing the throw clause of the members.
  * \param p  The protection context of the member, possible values are:
  *           \c Public, \c Protected, \c Private.
- * \param v  The degree of `virtualness' of the member, possible values are:
+ * \param v  The degree of 'virtualness' of the member, possible values are:
  *           \c Normal, \c Virtual, \c Pure.
  * \param s  A boolean that is true iff the member is static.
  * \param r  The relationship between the class and the member.
@@ -2103,13 +2103,13 @@ ClassDef *MemberDefImpl::getClassDefOfAnonymousType() const
     cname=getNamespaceDef()->name();
   }
   QCString ltype(m_impl->type);
-  // strip `static' keyword from ltype
+  // strip 'static' keyword from ltype
   //if (ltype.left(7)=="static ") ltype=ltype.right(ltype.length()-7);
-  // strip `friend' keyword from ltype
+  // strip 'friend' keyword from ltype
   ltype.stripPrefix("friend ");
   static QRegExp r("@[0-9]+");
   int l,i=r.match(ltype,0,&l);
-  //printf("ltype=`%s' i=%d\n",ltype.data(),i);
+  //printf("ltype='%s' i=%d\n",ltype.data(),i);
   // search for the last anonymous scope in the member type
   ClassDef *annoClassDef=0;
   if (i!=-1) // found anonymous scope in type
@@ -2251,7 +2251,7 @@ QCString MemberDefImpl::getDeclType() const
   {
     ltype="using";
   }
-  // strip `friend' keyword from ltype
+  // strip 'friend' keyword from ltype
   ltype.stripPrefix("friend ");
   if (ltype=="@") // rename type from enum values
   {
@@ -2360,7 +2360,7 @@ void MemberDefImpl::writeDeclaration(OutputList &ol,
   {
     ltype="using";
   }
-  // strip `friend' keyword from ltype
+  // strip 'friend' keyword from ltype
   ltype.stripPrefix("friend ");
   static QRegExp r("@[0-9]+");
 
@@ -2368,7 +2368,7 @@ void MemberDefImpl::writeDeclaration(OutputList &ol,
   int l,i=r.match(ltype,0,&l);
   if (i!=-1) // member has an anonymous type
   {
-    //printf("annoClassDef=%p annMemb=%p scopeName=`%s' anonymous=`%s'\n",
+    //printf("annoClassDef=%p annMemb=%p scopeName='%s' anonymous='%s'\n",
     //    annoClassDef,annMemb,cname.data(),ltype.mid(i,l).data());
 
     if (annoClassDef) // type is an anonymous compound
@@ -2385,7 +2385,7 @@ void MemberDefImpl::writeDeclaration(OutputList &ol,
         ol.writeNonBreakableSpace(3);
       }
       QCString varName=ltype.right(ltype.length()-ir).stripWhiteSpace();
-      //printf(">>>>>> ltype=`%s' varName=`%s'\n",ltype.data(),varName.data());
+      //printf(">>>>>> ltype='%s' varName='%s'\n",ltype.data(),varName.data());
       ol.docify("}");
       if (varName.isEmpty() && (name().isEmpty() || name().at(0)=='@'))
       {
@@ -3382,7 +3382,7 @@ void MemberDefImpl::writeDocumentation(const MemberList *ml,
   bool inFile = container->definitionType()==Definition::TypeFile;
   bool hasDocs = isDetailedSectionVisible(inGroup,inFile);
 
-  //printf("MemberDefImpl::writeDocumentation(): name=`%s' hasDocs=`%d' containerType=%d inGroup=%d sectionLinkable=%d\n",
+  //printf("MemberDefImpl::writeDocumentation(): name='%s' hasDocs='%d' containerType=%d inGroup=%d sectionLinkable=%d\n",
   //    name().data(),hasDocs,container->definitionType(),inGroup,isDetailedSectionLinkable());
 
   //if ( !hasDocs ) return;
@@ -3424,7 +3424,7 @@ void MemberDefImpl::writeDocumentation(const MemberList *ml,
 
   QCString ldef = definition();
   QCString title = name();
-  //printf("member `%s' def=`%s'\n",name().data(),ldef.data());
+  //printf("member '%s' def='%s'\n",name().data(),ldef.data());
   if (isEnumerate())
   {
     if (title.at(0)=='@')
@@ -3498,7 +3498,7 @@ void MemberDefImpl::writeDocumentation(const MemberList *ml,
     }
     if (!found) // anonymous compound
     {
-      //printf("Anonymous compound `%s'\n",cname.data());
+      //printf("Anonymous compound '%s'\n",cname.data());
       ol.startDoxyAnchor(cfname,cname,memAnchor,doxyName,doxyArgs);
       ol.startMemberDoc(ciname,name(),memAnchor,name(),memCount,memTotal,showInline);
       // search for the last anonymous compound name in the definition
@@ -3749,7 +3749,7 @@ void MemberDefImpl::writeDocumentation(const MemberList *ml,
       //               )
      )
   {
-    //printf("md=%s initLines=%d init=`%s'\n",name().data(),initLines,init.data());
+    //printf("md=%s initLines=%d init='%s'\n",name().data(),initLines,init.data());
     ol.startBold();
     if (m_impl->mtype==MemberType_Define)
       ol.parseText(theTranslator->trDefineValue());
@@ -6053,7 +6053,7 @@ void combineDeclarationAndDefinition(MemberDef *mdec,MemberDef *mdef)
                        )
        ) /* match found */
     {
-      //printf("Found member %s: definition in %s (doc=`%s') and declaration in %s (doc=`%s')\n",
+      //printf("Found member %s: definition in %s (doc='%s') and declaration in %s (doc='%s')\n",
       //    mn->memberName(),
       //    mdef->getFileDef()->name().data(),mdef->documentation().data(),
       //    mdec->getFileDef()->name().data(),mdec->documentation().data()
diff --git a/src/membergroup.cpp b/src/membergroup.cpp
index 04689b4..a5852e4 100644
--- a/src/membergroup.cpp
+++ b/src/membergroup.cpp
@@ -59,7 +59,7 @@ MemberGroup::MemberGroup(const Definition *parent,
   m_docFile       = docFile;
   m_docLine       = docLine;
   m_xrefListItems = 0;
-  //printf("Member group docs=`%s'\n",doc.data());
+  //printf("Member group docs='%s'\n",doc.data());
 }
 
 MemberGroup::~MemberGroup()
diff --git a/src/memberlist.cpp b/src/memberlist.cpp
index 94bb916..1869808 100644
--- a/src/memberlist.cpp
+++ b/src/memberlist.cpp
@@ -183,7 +183,7 @@ void MemberList::countDecMembers()
                                      m_numDecMembers++;
                                      break;
         default:
-          err("Unknown member type found for member `%s'\n!",md->name().data());
+          err("Unknown member type found for member '%s'\n!",md->name().data());
       }
     }
   }
@@ -433,7 +433,7 @@ void MemberList::writePlainDeclarations(OutputList &ol,
   MemberListIterator mli(*this);
   for ( ; (md=mli.current()); ++mli )
   {
-    //printf(">>> Member `%s' type=%d visible=%d\n",
+    //printf(">>> Member '%s' type=%d visible=%d\n",
     //    md->name().data(),md->memberType(),md->isBriefSectionVisible());
     if ((inheritedFrom==0 || !md->isReimplementedBy(inheritedFrom)) &&
         md->isBriefSectionVisible())
@@ -612,7 +612,7 @@ void MemberList::writeDeclarations(OutputList &ol,
   if (ctx==0 && gd) ctx = gd;
   if (ctx==0 && fd) ctx = fd;
 
-  //printf("%p: MemberList::writeDeclaration(title=`%s',subtitle=`%s')=%d inheritedFrom=%p\n",
+  //printf("%p: MemberList::writeDeclaration(title='%s',subtitle='%s')=%d inheritedFrom=%p\n",
   //       this,title,subtitle,numDecMembers(),inheritedFrom);
 
   int num = numDecMembers();
diff --git a/src/msc.cpp b/src/msc.cpp
index 0137e1b..51e23fa 100644
--- a/src/msc.cpp
+++ b/src/msc.cpp
@@ -51,7 +51,7 @@ static bool convertMapFile(FTextStream &t,const char *mapName,const QCString rel
     bool isRef = FALSE;
     int numBytes = f.readLine(buf,maxLineLen);
     buf[numBytes-1]='\0';
-    //printf("ReadLine `%s'\n",buf);
+    //printf("ReadLine '%s'\n",buf);
     if (qstrncmp(buf,"rect",4)==0)
     {
       // obtain the url and the coordinates in the order used by graphviz-1.5
diff --git a/src/namespacedef.cpp b/src/namespacedef.cpp
index 1e526ae..38e5c04 100644
--- a/src/namespacedef.cpp
+++ b/src/namespacedef.cpp
@@ -518,7 +518,7 @@ void NamespaceDefImpl::insertMember(MemberDef *md)
       break;
     default:
       err("NamespaceDefImpl::insertMembers(): "
-           "member `%s' with class scope `%s' inserted in namespace scope `%s'!\n",
+           "member '%s' with class scope '%s' inserted in namespace scope '%s'!\n",
            md->name().data(),
            md->getClassDef() ? md->getClassDef()->name().data() : "",
            name().data());
diff --git a/src/perlmodgen.cpp b/src/perlmodgen.cpp
index 441c4d3..a288e0e 100644
--- a/src/perlmodgen.cpp
+++ b/src/perlmodgen.cpp
@@ -749,7 +749,7 @@ void PerlModDocVisitor::visit(DocInclude *inc)
 void PerlModDocVisitor::visit(DocIncOperator *)
 {
 #if 0
-  //printf("DocIncOperator: type=%d first=%d, last=%d text=`%s'\n",
+  //printf("DocIncOperator: type=%d first=%d, last=%d text='%s'\n",
   //    op->type(),op->isFirst(),op->isLast(),op->text().data());
   if (op->isFirst())
   {
@@ -2275,13 +2275,13 @@ bool PerlModGenerator::createOutputDir(QDir &perlModDir)
       dir.setPath(QDir::currentDirPath());
       if (!dir.mkdir(outputDirectory))
       {
-	err("tag OUTPUT_DIRECTORY: Output directory `%s' does not "
+	err("tag OUTPUT_DIRECTORY: Output directory '%s' does not "
 	    "exist and cannot be created\n",outputDirectory.data());
 	exit(1);
       }
       else
       {
-	msg("Notice: Output directory `%s' does not exist. "
+	msg("Notice: Output directory '%s' does not exist. "
 	    "I have created it for you.\n", outputDirectory.data());
       }
       dir.cd(outputDirectory);
diff --git a/src/pre.l b/src/pre.l
index 81f4c4e..596108f 100644
--- a/src/pre.l
+++ b/src/pre.l
@@ -694,7 +694,7 @@ static QCString stringize(const QCString &s)
       }
     }
   }
-  //printf("stringize `%s'->`%s'\n",s.data(),result.data());
+  //printf("stringize '%s'->'%s'\n",s.data(),result.data());
   return result;
 }
 
@@ -705,19 +705,19 @@ static QCString stringize(const QCString &s)
  */
 static void processConcatOperators(QCString &expr)
 {
-  //printf("processConcatOperators: in=`%s'\n",expr.data());
+  //printf("processConcatOperators: in='%s'\n",expr.data());
   QRegExp r("[ \\t\\n]*##[ \\t\\n]*"); 
   int l,n,i=0;
   if (expr.isEmpty()) return;
   while ((n=r.match(expr,i,&l))!=-1)
   {
-    //printf("Match: `%s'\n",expr.data()+i);
+    //printf("Match: '%s'\n",expr.data()+i);
     if (n+l+1<(int)expr.length() && expr.at(n+l)=='@' && expr.at(n+l+1)=='-')
     {
       // remove no-rescan marker after ID
       l+=2;
     }
-    //printf("found `%s'\n",expr.mid(n,l).data());
+    //printf("found '%s'\n",expr.mid(n,l).data());
     // remove the ## operator and the surrounding whitespace
     expr=expr.left(n)+expr.right(expr.length()-n-l);
     int k=n-1;
@@ -730,7 +730,7 @@ static void processConcatOperators(QCString &expr)
     }
     i=n;
   }
-  //printf("processConcatOperators: out=`%s'\n",expr.data());
+  //printf("processConcatOperators: out='%s'\n",expr.data());
 }
 
 static void yyunput (int c,char *buf_ptr  );
@@ -775,7 +775,7 @@ static bool replaceFunctionMacro(const QCString &expr,QCString *rest,int pos,int
     unputChar(expr,rest,j,' '); 
     return FALSE; 
   }
-  getNextChar(expr,rest,j); // eat the `(' character
+  getNextChar(expr,rest,j); // eat the '(' character
 
   QDict<QCString> argTable;  // list of arguments
   argTable.setAutoDelete(TRUE);
@@ -955,13 +955,13 @@ static bool replaceFunctionMacro(const QCString &expr,QCString *rest,int pos,int
 	  if (key.length()>1 && (subst=argTable[key])) 
 	  {
 	    QCString substArg=*subst;
-	    //printf("substArg=`%s'\n",substArg.data());
+	    //printf("substArg='%s'\n",substArg.data());
 	    // only if no ## operator is before or after the argument
 	    // marker we do macro expansion.
 	    if (!hash) expandExpression(substArg,0,0);
 	    if (inString)
 	    {
-	      //printf("`%s'=stringize(`%s')\n",stringize(*subst).data(),subst->data());
+	      //printf("'%s'=stringize('%s')\n",stringize(*subst).data(),subst->data());
 
 	      // if the marker is inside a string (because a # was put 
 	      // before the macro name) we must escape " and \ characters
@@ -1000,7 +1000,7 @@ static bool replaceFunctionMacro(const QCString &expr,QCString *rest,int pos,int
     }
     len=j-pos;
     result=resExpr;
-    //printf("result after substitution `%s' expr=`%s'\n",
+    //printf("result after substitution '%s' expr='%s'\n",
     //       result.data(),expr.mid(pos,len).data());
     return TRUE;
   }
@@ -1104,7 +1104,7 @@ static void expandExpression(QCString &expr,QCString *rest,int pos)
 	else if (def && def->nargs==-1) // simple macro
 	{
 	  // substitute the definition of the macro
-	  //printf("macro `%s'->`%s'\n",macroName.data(),def->definition.data());
+	  //printf("macro '%s'->'%s'\n",macroName.data(),def->definition.data());
 	  if (g_nospaces)
 	  {
 	    expMacro=def->definition.stripWhiteSpace();
@@ -1116,7 +1116,7 @@ static void expandExpression(QCString &expr,QCString *rest,int pos)
 	  //expMacro=def->definition.stripWhiteSpace();
 	  replaced=TRUE;
 	  len=l;
-	  //printf("simple macro expansion=`%s'->`%s'\n",macroName.data(),expMacro.data());
+	  //printf("simple macro expansion='%s'->'%s'\n",macroName.data(),expMacro.data());
 	}
 	else if (def && def->nargs>=0) // function macro
 	{
@@ -1126,7 +1126,7 @@ static void expandExpression(QCString &expr,QCString *rest,int pos)
 
 	if (replaced) // expand the macro and rescan the expression
 	{
-	  //printf("replacing `%s'->`%s'\n",expr.mid(p,len).data(),expMacro.data());
+	  //printf("replacing '%s'->'%s'\n",expr.mid(p,len).data(),expMacro.data());
 	  QCString resultExpr=expMacro;
 	  QCString restExpr=expr.right(expr.length()-len-p);
 	  processConcatOperators(resultExpr);
@@ -1237,7 +1237,7 @@ QCString removeIdsAndMarkers(const char *s)
       {
         p = processUntilMatchingTerminator(p,result);
       }
-      else if (c=='d' && !inNum) // identifier starting with a `d'
+      else if (c=='d' && !inNum) // identifier starting with a 'd'
       {
 	if (qstrncmp(p,"defined ",8)==0 || qstrncmp(p,"defined(",8)==0) 
 	           // defined keyword
@@ -1388,10 +1388,10 @@ bool computeExpression(const QCString &expr)
 {
   QCString e=expr;
   expandExpression(e,0,0);
-  //printf("after expansion `%s'\n",e.data());
+  //printf("after expansion '%s'\n",e.data());
   e = removeIdsAndMarkers(e);
   if (e.isEmpty()) return FALSE;
-  //printf("parsing `%s'\n",e.data());
+  //printf("parsing '%s'\n",e.data());
   return parseconstexp(g_yyFileName,g_yyLineNr,e);
 }
 
@@ -1404,7 +1404,7 @@ QCString expandMacro(const QCString &name)
   QCString n=name;
   expandExpression(n,0,0);
   n=removeMarkers(n);
-  //printf("expandMacro `%s'->`%s'\n",name.data(),n.data());
+  //printf("expandMacro '%s'->'%s'\n",name.data(),n.data());
   return n;
 }
 
@@ -1421,7 +1421,7 @@ Define *newDefine()
   def->varArgs    = g_defVarArgs;
   //printf("newDefine: %s %s file: %s\n",def->name.data(),def->definition.data(),
   //    def->fileDef ? def->fileDef->name().data() : def->fileName.data());
-  //printf("newDefine: `%s'->`%s'\n",def->name.data(),def->definition.data());
+  //printf("newDefine: '%s'->'%s'\n",def->name.data(),def->definition.data());
   if (!def->name.isEmpty() && Doxygen::expandAsDefinedDict[def->name])
   {
     def->isPredefined=TRUE;
@@ -1445,11 +1445,11 @@ void addDefine()
   if (!g_defArgsStr.isEmpty())
   {
     ArgumentList *argList = new ArgumentList;
-    //printf("addDefine() g_defName=`%s' g_defArgsStr=`%s'\n",g_defName.data(),g_defArgsStr.data());
+    //printf("addDefine() g_defName='%s' g_defArgsStr='%s'\n",g_defName.data(),g_defArgsStr.data());
     stringToArgumentList(g_defArgsStr,argList);
     md->setArgumentList(argList);
   }
-  //printf("Setting initializer for `%s' to `%s'\n",g_defName.data(),g_defText.data());
+  //printf("Setting initializer for '%s' to '%s'\n",g_defName.data(),g_defText.data());
   int l=g_defLitText.find('\n');
   if (l>0 && g_defLitText.left(l).stripWhiteSpace()=="\\")
   {
@@ -1529,7 +1529,7 @@ static void readIncludeFile(const QCString &inc)
     QCString oldFileName = g_yyFileName;
     FileDef *oldFileDef  = g_yyFileDef;
     int oldLineNr        = g_yyLineNr;
-    //printf("Searching for `%s'\n",incFileName.data());
+    //printf("Searching for '%s'\n",incFileName.data());
 
     // absIncFileName avoids difficulties for incFileName starting with "../" (bug 641336)
     QCString absIncFileName = incFileName;
@@ -2020,7 +2020,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
 					  if (g_roundCount==0)
 					  {
 					    QCString result=expandMacro(g_defArgsStr);
-					    //printf("g_defArgsStr=`%s'->`%s'\n",g_defArgsStr.data(),result.data());
+					    //printf("g_defArgsStr='%s'->'%s'\n",g_defArgsStr.data(),result.data());
 					    if (g_findDefArgContext==CopyLine)
 					    {
 					      outputArray(result,result.length());
@@ -2229,7 +2229,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
 <Guard>.				{ g_guardExpr+=*yytext; }
 <Guard>\n				{
   					  unput(*yytext);
-  					  //printf("Guard: `%s'\n",
+  					  //printf("Guard: '%s'\n",
 					  //    g_guardExpr.data());
 					  bool guard=computeExpression(g_guardExpr);
 					  setCaseDone(guard);
@@ -2383,7 +2383,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
 <EndImport>.				{
   					}
 <DefName>{ID}/("\\\n")*"("		{ // define with argument
-  					  //printf("Define() `%s'\n",yytext);
+  					  //printf("Define() '%s'\n",yytext);
 					  delete g_argDict;
 					  g_argDict = new QDict<int>(31);
 					  g_argDict->setAutoDelete(TRUE);
@@ -2397,7 +2397,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
 					  BEGIN(DefineArg);
   					}
 <DefName>{ID}{B}+"1"/[ \r\t\n]		{ // special case: define with 1 -> can be "guard"
-  					  //printf("Define `%s'\n",yytext);
+  					  //printf("Define '%s'\n",yytext);
 					  delete g_argDict; g_argDict=0;
 					  g_defArgs = -1;
                                           g_defArgsStr.resize(0);
@@ -2455,7 +2455,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
 					  g_expectGuard=FALSE;
   					}
 <DefName>{ID}/{B}*			{ // define with content
-  					  //printf("Define `%s'\n",yytext);
+  					  //printf("Define '%s'\n",yytext);
 					  delete g_argDict; g_argDict=0;
 					  g_defArgs = -1;
                                           g_defArgsStr.resize(0);
@@ -2857,7 +2857,7 @@ CHARLIT   (("'"\\[0-7]{1,3}"'")|("'"\\."'")|("'"[^'\\\n]{1,4}"'"))
 					  }
   					  outputChar('\n');
   					  Define *def=0;
-					  //printf("Define name=`%s' text=`%s' litTexti=`%s'\n",g_defName.data(),g_defText.data(),g_defLitText.data());
+					  //printf("Define name='%s' text='%s' litTexti='%s'\n",g_defName.data(),g_defText.data(),g_defLitText.data());
 					  if (g_includeStack.isEmpty() || g_curlyCount>0) 
 					  {
 					    addDefine();
@@ -3204,7 +3204,7 @@ void preprocessFile(const char *fileName,BufStr &input,BufStr &output)
 	  DefineManager::instance().addDefine(g_yyFileName,def);
 	}
 
-	//printf("#define `%s' `%s' #nargs=%d\n",
+	//printf("#define '%s' '%s' #nargs=%d\n",
 	//  def->name.data(),def->definition.data(),def->nargs);
       }
       else if ((i_obrace==-1 || i_obrace>i_equals) &&
@@ -3239,7 +3239,7 @@ void preprocessFile(const char *fileName,BufStr &input,BufStr &output)
 	  delete def;
 	}
 
-	//printf("#define `%s' `%s' #nargs=%d\n",
+	//printf("#define '%s' '%s' #nargs=%d\n",
 	//  def->name.data(),def->definition.data(),def->nargs);
       }
     }
diff --git a/src/pycode.l b/src/pycode.l
index 010d188..3d57727 100644
--- a/src/pycode.l
+++ b/src/pycode.l
@@ -376,7 +376,7 @@ static void startCodeLine()
       g_searchingForBody = TRUE;
       g_realScope = d->name().copy();
       g_classScope = d->name().copy();
-      //printf("Real scope: `%s'\n",g_realScope.data());
+      //printf("Real scope: '%s'\n",g_realScope.data());
       g_bodyCurlyCount = 0;
       QCString lineAnchor;
       lineAnchor.sprintf("l%05d",g_yyLineNr);
@@ -549,7 +549,7 @@ static bool getLinkInScope(const QCString &c,  // scope
   const FileDef      *fd = 0;
   const NamespaceDef *nd = 0;
   const GroupDef     *gd = 0;
-  //printf("Trying `%s'::`%s'\n",c.data(),m.data());
+  //printf("Trying '%s'::'%s'\n",c.data(),m.data());
   if (getDefs(c,m,"()",md,cd,fd,nd,gd,FALSE,g_sourceFileDef) && 
       md->isLinkable())
   {
@@ -571,7 +571,7 @@ static bool getLinkInScope(const QCString &c,  // scope
       {
 	addDocCrossReference(g_currentMemberDef,const_cast<MemberDef*>(md));
       }
-      //printf("d->getReference()=`%s' d->getOutputBase()=`%s' name=`%s' member name=`%s'\n",d->getReference().data(),d->getOutputFileBase().data(),d->name().data(),md->name().data());
+      //printf("d->getReference()='%s' d->getOutputBase()='%s' name='%s' member name='%s'\n",d->getReference().data(),d->getOutputFileBase().data(),d->name().data(),md->name().data());
      
       writeMultiLineCodeLink(ol,md, text ? text : memberText);
       addToSearchIndex(text ? text : memberText);
@@ -753,7 +753,7 @@ static void generateFunctionLink(CodeOutputInterface &ol,char *funcName)
     locScope=locFunc.left(i);
     locFunc=locFunc.right(locFunc.length()-i-2).stripWhiteSpace();
   }
-  //printf("generateFunctionLink(%s) classScope=`%s'\n",locFunc.data(),locScope.data());
+  //printf("generateFunctionLink(%s) classScope='%s'\n",locFunc.data(),locScope.data());
   if (!locScope.isEmpty() && (ccd=g_codeClassSDict[locScope]))
   {
     //printf("using classScope %s\n",g_classScope.data());
diff --git a/src/rtfdocvisitor.cpp b/src/rtfdocvisitor.cpp
index e4f33da..43ac362 100644
--- a/src/rtfdocvisitor.cpp
+++ b/src/rtfdocvisitor.cpp
@@ -531,7 +531,7 @@ void RTFDocVisitor::visit(DocInclude *inc)
 
 void RTFDocVisitor::visit(DocIncOperator *op)
 {
-  //printf("DocIncOperator: type=%d first=%d, last=%d text=`%s'\n",
+  //printf("DocIncOperator: type=%d first=%d, last=%d text='%s'\n",
   //    op->type(),op->isFirst(),op->isLast(),op->text().data());
   DBG_RTF("{\\comment RTFDocVisitor::visit(DocIncOperator)}\n");
   QCString locLangExt = getFileNameExtension(op->includeFileName());
diff --git a/src/rtfgen.cpp b/src/rtfgen.cpp
index 948d4cf..229a817 100644
--- a/src/rtfgen.cpp
+++ b/src/rtfgen.cpp
@@ -1538,7 +1538,7 @@ void RTFGenerator::startMemberDoc(const char *clname,
   t << rtf_Style_Reset << rtf_Style[showInline ? "Heading5" : "Heading4"]->reference;
   //styleStack.push(rtf_Style_Heading4);
   t << "{" << endl;
-  //printf("RTFGenerator::startMemberDoc() `%s'\n",rtf_Style["Heading4"]->reference);
+  //printf("RTFGenerator::startMemberDoc() '%s'\n",rtf_Style["Heading4"]->reference);
   startBold();
   t << endl;
 }
@@ -1547,7 +1547,7 @@ void RTFGenerator::endMemberDoc(bool)
 {
   DBG_RTF(t << "{\\comment endMemberDoc}" << endl)
   //const char *style = styleStack.pop();
-  //printf("RTFGenerator::endMemberDoc() `%s'\n",style);
+  //printf("RTFGenerator::endMemberDoc() '%s'\n",style);
   //ASSERT(style==rtf_Style["Heading4"]->reference);
   endBold();
   t << "}" << endl;
diff --git a/src/scanner.l b/src/scanner.l
index d7fbd4a..970b1e8 100644
--- a/src/scanner.l
+++ b/src/scanner.l
@@ -2677,7 +2677,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
   					}
   */
 <Define>{ID}				{
-  					  //printf("Define `%s' without args\n",yytext);
+  					  //printf("Define '%s' without args\n",yytext);
                                           if (insideCpp || insideObjC) 
                                           {
                                             current->id = ClangParser::instance()->lookup(yyLineNr,yytext);
@@ -2948,7 +2948,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
   					  BEGIN(GCopyCurly);
   					}
 <ReadInitializer>[;,]			{
-  					  //printf(">> initializer `%s' <<\n",current->initializer.data());
+  					  //printf(">> initializer '%s' <<\n",current->initializer.data());
                                           if (*yytext==';' && (current_root->spec&Entry::Enum))
 					  {
 					    current->fileName   = yyFileName;
@@ -3856,7 +3856,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
                                         }
 <SkipRemainder>[^\n]*
 <FindFields>","				{
-					  //printf("adding `%s' `%s' `%s' to enum `%s' (mGrpId=%d)\n",
+					  //printf("adding '%s' '%s' '%s' to enum '%s' (mGrpId=%d)\n",
 					  //     current->type.data(), current->name.data(),
 					  //     current->args.data(), current_root->name.data(),current->mGrpId);
   					  if (!current->name.isEmpty())
@@ -4002,7 +4002,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
                                             }
 					    QCString &cn = current->name;
 					    QCString rn = current_root->name.copy();
-					    //printf("cn=`%s' rn=`%s' isTypedef=%d\n",cn.data(),rn.data(),isTypedef);
+					    //printf("cn='%s' rn='%s' isTypedef=%d\n",cn.data(),rn.data(),isTypedef);
 					    if (!cn.isEmpty() && !rn.isEmpty())
 					    {
 					      prependScope();
@@ -4023,7 +4023,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					                // was: current->args.simplifyWhiteSpace();
   					      current->type = current->type.simplifyWhiteSpace();
   					      current->name = current->name.stripWhiteSpace();
-					      //printf("adding `%s' `%s' `%s' brief=%s insideObjC=%d %x\n",current->type.data(),current->name.data(),current->args.data(),current->brief.data(),insideObjC,current->section);
+					      //printf("adding '%s' '%s' '%s' brief=%s insideObjC=%d %x\n",current->type.data(),current->name.data(),current->args.data(),current->brief.data(),insideObjC,current->section);
 					      if (insideObjC && 
 						  ((current->spec&Entry::Interface) || (current->spec==Entry::Category))
 						 ) // method definition follows
@@ -4169,7 +4169,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					  { 
 					    // see if the compound does not have a name or is inside another
 					    // anonymous compound. If so we insert a 
-					    // special `anonymous' variable.
+					    // special 'anonymous' variable.
 					    //Entry *p=current_root;
 					    Entry *p=current;
 					    while (p)
@@ -4177,7 +4177,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					      // only look for class scopes, not namespace scopes
 					      if ((p->section & Entry::COMPOUND_MASK) && !p->name.isEmpty())
 					      {
-						//printf("Trying scope `%s'\n",p->name.data());
+						//printf("Trying scope '%s'\n",p->name.data());
 						int i=p->name.findRev("::");
 						int pi = (i==-1) ? 0 : i+2;
 						if (p->name.at(pi)=='@')
@@ -4262,7 +4262,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 						}
 					      }
 
-					      //printf("Add: type=`%s',name=`%s',args=`%s' brief=%s doc=%s\n",
+					      //printf("Add: type='%s',name='%s',args='%s' brief=%s doc=%s\n",
 					      //      varEntry->type.data(),varEntry->name.data(),
 					      //      varEntry->args.data(),varEntry->brief.data(),varEntry->doc.data());
 					      current_root->addSubEntry(varEntry);
@@ -4364,7 +4364,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					  }
   					}
 <FuncPtr>.				{
-  					  //printf("error: FuncPtr `%c' unexpected at line %d of %s\n",*yytext,yyLineNr,yyFileName);
+  					  //printf("error: FuncPtr '%c' unexpected at line %d of %s\n",*yytext,yyLineNr,yyFileName);
   					}
 <FuncPtrOperator>"("{BN}*")"{BN}*/"("	{
   					  current->name += yytext;
@@ -4618,7 +4618,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					  BEGIN( SkipCxxComment );
   					}
   */
-	/* `)' followed by a special comment */
+	/* ')' followed by a special comment */
 <ReadFuncArgType>")"{BN}*("/*"[*!]|"//"[/!])"<"	{
   					  lineCount();
                                           if (currentArgumentContext==DefineEnd)
@@ -5149,7 +5149,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					    if (!current->type.isEmpty() &&
 						(!isFunction || current->type.left(8)=="typedef "))
 					    {
-					      //printf("Scanner.l: found in class variable: `%s' `%s' `%s'\n", current->type.data(),current->name.data(),current->args.data());
+					      //printf("Scanner.l: found in class variable: '%s' '%s' '%s'\n", current->type.data(),current->name.data(),current->args.data());
 					      if (isTypedef && current->type.left(8)!="typedef ")
 					      {
 						current->type.prepend("typedef ");
@@ -5158,14 +5158,14 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					    }
 					    else	      
 					    {
-					      //printf("Scanner.l: found in class function: `%s' `%s' `%s'\n", current->type.data(),current->name.data(),current->args.data());
+					      //printf("Scanner.l: found in class function: '%s' '%s' '%s'\n", current->type.data(),current->name.data(),current->args.data());
 					      current->section = Entry::FUNCTION_SEC ;
 			                      current->proto = *yytext==';';
 					    }
 					  }
 					  else // a global function prototype or function variable
 					  {
-					    //printf("Scanner.l: prototype? type=`%s' name=`%s' args=`%s'\n",current->type.data(),current->name.data(),current->args.data());
+					    //printf("Scanner.l: prototype? type='%s' name='%s' args='%s'\n",current->type.data(),current->name.data(),current->args.data());
 					    if (!current->type.isEmpty() && 
 						(current->type.find(re,0)!=-1 || current->type.left(8)=="typedef "))
 					    {
@@ -5183,7 +5183,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
 					      current->proto = TRUE;
 					    }
 					  }
-					  //printf("Adding entry `%s'\n",current->name.data());
+					  //printf("Adding entry '%s'\n",current->name.data());
 					  if ( insidePHP)
 					  {
 					    if (findAndRemoveWord(current->type,"final"))
@@ -5591,7 +5591,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
                                             current->name=current->name.left(current->name.length()-1).stripWhiteSpace();
                                             //printf("template class declaration for %s!\n",current->name.data());
 					    QCString rn = current_root->name.copy();
-					    //printf("cn=`%s' rn=`%s' isTypedef=%d\n",cn.data(),rn.data(),isTypedef);
+					    //printf("cn='%s' rn='%s' isTypedef=%d\n",cn.data(),rn.data(),isTypedef);
 					    if (!current->name.isEmpty() && !rn.isEmpty())
 					    {
 					      prependScope();
@@ -6807,7 +6807,7 @@ OPERATOR  "operator"{B}*({ARITHOP}|{ASSIGNOP}|{LOGICOP}|{BITOP})
   					}
 <DocCopyBlock><<EOF>>			{
   					  warn(yyFileName,yyLineNr,
-					      "reached end of file while inside a `%s' block!\n"
+					      "reached end of file while inside a '%s' block!\n"
 					      "The command that should end the block seems to be missing!\n",
 					      docBlockName.data());
   					  yyterminate();
diff --git a/src/tagreader.cpp b/src/tagreader.cpp
index da2f3f1..56dbe7d 100644
--- a/src/tagreader.cpp
+++ b/src/tagreader.cpp
@@ -384,7 +384,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unknown compound attribute `%s' found!",kind.data());
+        warn("Unknown compound attribute '%s' found!",kind.data());
         m_state = Invalid;
       }
       if (isObjC=="yes" && m_curClass)
@@ -412,7 +412,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InPackage:   m_tagFilePackages.append(m_curPackage); 
                           m_curPackage=0; break; 
         default:
-                          warn("tag `compound' was not expected!");
+                          warn("tag 'compound' was not expected!");
       }
     }
 
@@ -458,7 +458,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InNamespace: m_curNamespace->members.append(m_curMember); break;
         case InGroup:     m_curGroup->members.append(m_curMember); break;
         case InPackage:   m_curPackage->members.append(m_curMember); break;
-        default:   warn("Unexpected tag `member' found"); break; 
+        default:   warn("Unexpected tag 'member' found"); break; 
       }
     }
 
@@ -476,7 +476,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Found `enumvalue' tag outside of member tag");
+        warn("Found 'enumvalue' tag outside of member tag");
       }
     }
 
@@ -504,7 +504,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InMember:    m_curMember->docAnchors.append(new TagAnchorInfo(m_fileName,m_curString,m_title)); break;
         case InPackage:   m_curPackage->docAnchors.append(new TagAnchorInfo(m_fileName,m_curString,m_title)); break;
         case InDir:       m_curDir->docAnchors.append(new TagAnchorInfo(m_fileName,m_curString,m_title)); break;
-        default:   warn("Unexpected tag `docanchor' found"); break; 
+        default:   warn("Unexpected tag 'docanchor' found"); break; 
       }
     }
 
@@ -517,7 +517,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InNamespace: m_curNamespace->classList.append(m_curString); break;
         case InGroup:     m_curGroup->classList.append(m_curString); break;
         case InPackage:   m_curPackage->classList.append(m_curString); break;
-        default:   warn("Unexpected tag `class' found"); break; 
+        default:   warn("Unexpected tag 'class' found"); break; 
       }
     }
 
@@ -528,7 +528,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InNamespace: m_curNamespace->classList.append(m_curString); break;
         case InFile:      m_curFile->namespaceList.append(m_curString); break;
         case InGroup:     m_curGroup->namespaceList.append(m_curString); break;
-        default:   warn("Unexpected tag `namespace' found"); break; 
+        default:   warn("Unexpected tag 'namespace' found"); break; 
       }
     }
 
@@ -538,7 +538,7 @@ class TagFileParser : public QXmlDefaultHandler
       {
         case InGroup:      m_curGroup->fileList.append(m_curString); break;
         case InDir:        m_curDir->fileList.append(m_curString); break;
-        default:   warn("Unexpected tag `file' found"); break; 
+        default:   warn("Unexpected tag 'file' found"); break; 
       }
     }
 
@@ -547,7 +547,7 @@ class TagFileParser : public QXmlDefaultHandler
       switch(m_state)
       {
         case InGroup:      m_curGroup->fileList.append(m_curString); break;
-        default:   warn("Unexpected tag `page' found"); break; 
+        default:   warn("Unexpected tag 'page' found"); break; 
       }
     }
 
@@ -556,7 +556,7 @@ class TagFileParser : public QXmlDefaultHandler
       switch(m_state)
       {
         case InDir:      m_curDir->subdirList.append(m_curString); break;
-        default:   warn("Unexpected tag `dir' found"); break; 
+        default:   warn("Unexpected tag 'dir' found"); break; 
       }
     }
 
@@ -580,7 +580,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `type' found");
+        warn("Unexpected tag 'type' found");
       }
     }
 
@@ -596,7 +596,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InDir:       m_curDir->name       = m_curString; break;
         case InMember:    m_curMember->name    = m_curString; break;
         case InPackage:   m_curPackage->name   = m_curString; break;
-        default: warn("Unexpected tag `name' found"); break; 
+        default: warn("Unexpected tag 'name' found"); break; 
       }
     }
 
@@ -630,7 +630,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `base' found");
+        warn("Unexpected tag 'base' found");
       }
     }
 
@@ -642,7 +642,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `base' found");
+        warn("Unexpected tag 'base' found");
       }
     }
 
@@ -659,7 +659,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `includes' found");
+        warn("Unexpected tag 'includes' found");
       }
       m_curString="";
     }
@@ -682,7 +682,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `templarg' found");
+        warn("Unexpected tag 'templarg' found");
       }
     }
 
@@ -697,7 +697,7 @@ class TagFileParser : public QXmlDefaultHandler
         case InPage:      m_curPage->filename      = m_curString;    break;
         case InPackage:   m_curPackage->filename   = m_curString;    break;
         case InDir:       m_curDir->filename       = m_curString;    break;
-        default: warn("Unexpected tag `filename' found"); break; 
+        default: warn("Unexpected tag 'filename' found"); break; 
       }
     }
 
@@ -707,7 +707,7 @@ class TagFileParser : public QXmlDefaultHandler
       {
         case InFile:      m_curFile->path          = m_curString;    break;
         case InDir:       m_curDir->path           = m_curString;    break;
-        default: warn("Unexpected tag `path' found");     break; 
+        default: warn("Unexpected tag 'path' found");     break; 
       }
     }
     
@@ -723,7 +723,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `anchor' found");
+        warn("Unexpected tag 'anchor' found");
       }
     }
 
@@ -743,7 +743,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `clangid' found");
+        warn("Unexpected tag 'clangid' found");
       }
     }
 
@@ -757,7 +757,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `anchorfile' found");
+        warn("Unexpected tag 'anchorfile' found");
       }
     }
     
@@ -769,7 +769,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `arglist' found");
+        warn("Unexpected tag 'arglist' found");
       }
     }
     void endTitle()
@@ -778,7 +778,7 @@ class TagFileParser : public QXmlDefaultHandler
       {
         case InGroup:     m_curGroup->title     = m_curString;    break;
         case InPage:      m_curPage->title      = m_curString;    break;
-        default: warn("Unexpected tag `title' found"); break; 
+        default: warn("Unexpected tag 'title' found"); break; 
       }
     }
 
@@ -790,7 +790,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else
       {
-        warn("Unexpected tag `subgroup' found");
+        warn("Unexpected tag 'subgroup' found");
       }
     }
 
@@ -877,7 +877,7 @@ class TagFileParser : public QXmlDefaultHandler
     bool startElement( const QString&, const QString&, 
                        const QString&name, const QXmlAttributes& attrib )
     {
-      //printf("startElement `%s'\n",name.data());
+      //printf("startElement '%s'\n",name.data());
       StartElementHandler *handler = m_startElementHandlers[name.utf8()];
       if (handler)
       {
@@ -885,14 +885,14 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else 
       {
-        warn("Unknown tag `%s' found!",name.data());
+        warn("Unknown tag '%s' found!",name.data());
       }
       return TRUE;
     }
 
     bool endElement( const QString&, const QString&, const QString& name )
     {
-      //printf("endElement `%s'\n",name.data());
+      //printf("endElement '%s'\n",name.data());
       EndElementHandler *handler = m_endElementHandlers[name.utf8()];
       if (handler)
       {
@@ -900,7 +900,7 @@ class TagFileParser : public QXmlDefaultHandler
       }
       else 
       {
-        warn("Unknown tag `%s' found!",name.data());
+        warn("Unknown tag '%s' found!",name.data());
       }
       return TRUE;
     }
@@ -986,8 +986,8 @@ void TagFileParser::dump()
   TagClassInfo *cd;
   for (;(cd=lci.current());++lci)
   {
-    msg("class `%s'\n",cd->name.data());
-    msg("  filename `%s'\n",cd->filename.data());
+    msg("class '%s'\n",cd->name.data());
+    msg("  filename '%s'\n",cd->filename.data());
     if (cd->bases)
     {
       QListIterator<BaseInfo> bii(*cd->bases);
@@ -1003,10 +1003,10 @@ void TagFileParser::dump()
     for (;(md=mci.current());++mci)
     {
       msg("  member:\n");
-      msg("    kind: `%s'\n",md->kind.data());
-      msg("    name: `%s'\n",md->name.data());
-      msg("    anchor: `%s'\n",md->anchor.data());
-      msg("    arglist: `%s'\n",md->arglist.data());
+      msg("    kind: '%s'\n",md->kind.data());
+      msg("    name: '%s'\n",md->name.data());
+      msg("    anchor: '%s'\n",md->anchor.data());
+      msg("    arglist: '%s'\n",md->arglist.data());
     }
   }
   //============== NAMESPACES
@@ -1014,8 +1014,8 @@ void TagFileParser::dump()
   TagNamespaceInfo *nd;
   for (;(nd=lni.current());++lni)
   {
-    msg("namespace `%s'\n",nd->name.data());
-    msg("  filename `%s'\n",nd->filename.data());
+    msg("namespace '%s'\n",nd->name.data());
+    msg("  filename '%s'\n",nd->filename.data());
     QCStringList::Iterator it;
     for ( it = nd->classList.begin(); 
         it != nd->classList.end(); ++it ) 
@@ -1028,10 +1028,10 @@ void TagFileParser::dump()
     for (;(md=mci.current());++mci)
     {
       msg("  member:\n");
-      msg("    kind: `%s'\n",md->kind.data());
-      msg("    name: `%s'\n",md->name.data());
-      msg("    anchor: `%s'\n",md->anchor.data());
-      msg("    arglist: `%s'\n",md->arglist.data());
+      msg("    kind: '%s'\n",md->kind.data());
+      msg("    name: '%s'\n",md->name.data());
+      msg("    anchor: '%s'\n",md->anchor.data());
+      msg("    arglist: '%s'\n",md->arglist.data());
     }
   }
   //============== FILES
@@ -1039,8 +1039,8 @@ void TagFileParser::dump()
   TagFileInfo *fd;
   for (;(fd=lfi.current());++lfi)
   {
-    msg("file `%s'\n",fd->name.data());
-    msg("  filename `%s'\n",fd->filename.data());
+    msg("file '%s'\n",fd->name.data());
+    msg("  filename '%s'\n",fd->filename.data());
     QCStringList::Iterator it;
     for ( it = fd->namespaceList.begin(); 
         it != fd->namespaceList.end(); ++it ) 
@@ -1058,10 +1058,10 @@ void TagFileParser::dump()
     for (;(md=mci.current());++mci)
     {
       msg("  member:\n");
-      msg("    kind: `%s'\n",md->kind.data());
-      msg("    name: `%s'\n",md->name.data());
-      msg("    anchor: `%s'\n",md->anchor.data());
-      msg("    arglist: `%s'\n",md->arglist.data());
+      msg("    kind: '%s'\n",md->kind.data());
+      msg("    name: '%s'\n",md->name.data());
+      msg("    anchor: '%s'\n",md->anchor.data());
+      msg("    arglist: '%s'\n",md->arglist.data());
     }
 
     QListIterator<TagIncludeInfo> mii(fd->includes);
@@ -1077,8 +1077,8 @@ void TagFileParser::dump()
   TagGroupInfo *gd;
   for (;(gd=lgi.current());++lgi)
   {
-    msg("group `%s'\n",gd->name.data());
-    msg("  filename `%s'\n",gd->filename.data());
+    msg("group '%s'\n",gd->name.data());
+    msg("  filename '%s'\n",gd->filename.data());
     QCStringList::Iterator it;
     for ( it = gd->namespaceList.begin(); 
         it != gd->namespaceList.end(); ++it ) 
@@ -1111,10 +1111,10 @@ void TagFileParser::dump()
     for (;(md=mci.current());++mci)
     {
       msg("  member:\n");
-      msg("    kind: `%s'\n",md->kind.data());
-      msg("    name: `%s'\n",md->name.data());
-      msg("    anchor: `%s'\n",md->anchor.data());
-      msg("    arglist: `%s'\n",md->arglist.data());
+      msg("    kind: '%s'\n",md->kind.data());
+      msg("    name: '%s'\n",md->name.data());
+      msg("    anchor: '%s'\n",md->anchor.data());
+      msg("    arglist: '%s'\n",md->arglist.data());
     }
   }
   //============== PAGES
@@ -1122,17 +1122,17 @@ void TagFileParser::dump()
   TagPageInfo *pd;
   for (;(pd=lpi.current());++lpi)
   {
-    msg("page `%s'\n",pd->name.data());
-    msg("  title `%s'\n",pd->title.data());
-    msg("  filename `%s'\n",pd->filename.data());
+    msg("page '%s'\n",pd->name.data());
+    msg("  title '%s'\n",pd->title.data());
+    msg("  filename '%s'\n",pd->filename.data());
   }
   //============== DIRS
   QListIterator<TagDirInfo> ldi(m_tagFileDirs);
   TagDirInfo *dd;
   for (;(dd=ldi.current());++ldi)
   {
-    msg("dir `%s'\n",dd->name.data());
-    msg("  path `%s'\n",dd->path.data());
+    msg("dir '%s'\n",dd->name.data());
+    msg("  path '%s'\n",dd->path.data());
     QCStringList::Iterator it;
     for ( it = dd->fileList.begin(); 
         it != dd->fileList.end(); ++it ) 
@@ -1527,7 +1527,7 @@ void TagFileParser::addIncludes()
           TagIncludeInfo *ii;
           for (;(ii=mii.current());++mii)
           {
-            //printf("ii->name=`%s'\n",ii->name.data());
+            //printf("ii->name='%s'\n",ii->name.data());
             FileName *ifn = Doxygen::inputNameDict->find(ii->name);
             ASSERT(ifn!=0);
             if (ifn)
diff --git a/src/template.cpp b/src/template.cpp
index b1435ce..228da4d 100644
--- a/src/template.cpp
+++ b/src/template.cpp
@@ -2832,7 +2832,7 @@ template<class T> class TemplateNodeCreator : public TemplateNode
         rootDir.setPath(QDir::currentDirPath());
         if (!rootDir.mkdir(outputDir))
         {
-          err("tag OUTPUT_DIRECTORY: Output directory `%s' does not "
+          err("tag OUTPUT_DIRECTORY: Output directory '%s' does not "
 	      "exist and cannot be created\n",outputDir.data());
           return;
         }
diff --git a/src/util.cpp b/src/util.cpp
index 163bb23..e028660 100644
--- a/src/util.cpp
+++ b/src/util.cpp
@@ -184,7 +184,7 @@ QCString removeAnonymousScopes(const QCString &s)
     p=i+l;
   }
   result+=s.right(sl-p);
-  //printf("removeAnonymousScopes(`%s')=`%s'\n",s.data(),result.data());
+  //printf("removeAnonymousScopes('%s')='%s'\n",s.data(),result.data());
   return result;
 }
 
@@ -210,7 +210,7 @@ QCString replaceAnonymousScopes(const QCString &s,const char *replacement)
     p=i+l;
   }
   result+=s.right(sl-p);
-  //printf("replaceAnonymousScopes(`%s')=`%s'\n",s.data(),result.data());
+  //printf("replaceAnonymousScopes('%s')='%s'\n",s.data(),result.data());
   return result;
 }
 
@@ -241,7 +241,7 @@ QCString stripAnonymousNamespaceScope(const QCString &s)
     p=i+l;
   }
 done:
-  //printf("stripAnonymousNamespaceScope(`%s')=`%s'\n",s.data(),newScope.data());
+  //printf("stripAnonymousNamespaceScope('%s')='%s'\n",s.data(),newScope.data());
   return newScope;
 }
 
@@ -383,7 +383,7 @@ QCString resolveTypeDef(const Definition *context,const QCString &qualifiedName,
     {
       // split-off scope part
       QCString resScopeName = qualifiedName.left(scopeIndex);
-      //printf("resScopeName=`%s'\n",resScopeName.data());
+      //printf("resScopeName='%s'\n",resScopeName.data());
 
       // look-up scope in context
       int is,ps=0;
@@ -394,7 +394,7 @@ QCString resolveTypeDef(const Definition *context,const QCString &qualifiedName,
         QCString tmp = resolveTypeDef(mContext,qualScopePart);
         if (!tmp.isEmpty()) qualScopePart=tmp;
         resScope = resScope->findInnerCompound(qualScopePart);
-        //printf("qualScopePart=`%s' resScope=%p\n",qualScopePart.data(),resScope);
+        //printf("qualScopePart='%s' resScope=%p\n",qualScopePart.data(),resScope);
         if (resScope==0) break;
         ps=is+l;
       }
@@ -444,7 +444,7 @@ QCString resolveTypeDef(const Definition *context,const QCString &qualifiedName,
   // step 3: get the member's type
   if (md)
   {
-    //printf(">>resolveTypeDef: Found typedef name `%s' in scope `%s' value=`%s' args='%s'\n",
+    //printf(">>resolveTypeDef: Found typedef name '%s' in scope '%s' value='%s' args='%s'\n",
     //    qualifiedName.data(),context->name().data(),md->typeString(),md->argsString()
     //    );
     result=md->typeString();
@@ -461,7 +461,7 @@ QCString resolveTypeDef(const Definition *context,const QCString &qualifiedName,
   }
   else
   {
-    //printf(">>resolveTypeDef: Typedef `%s' not found in scope `%s'!\n",
+    //printf(">>resolveTypeDef: Typedef '%s' not found in scope '%s'!\n",
     //    qualifiedName.data(),context ? context->name().data() : "<global>");
   }
   return result;
@@ -2018,7 +2018,7 @@ void linkifyText(const TextGeneratorIntf &out, const Definition *scope,
     const char *text, bool autoBreak,bool external,
     bool keepSpaces,int indentLevel)
 {
-  //printf("linkify=`%s'\n",text);
+  //printf("linkify='%s'\n",text);
   static QRegExp regExp("[a-z_A-Z\\x80-\\xFF][~!a-z_A-Z0-9$\\\\.:\\x80-\\xFF]*");
   static QRegExp regExpSplit("(?!:),");
   QCString txtStr=text;
@@ -2567,7 +2567,7 @@ QCString fileToString(const char *name,bool filter,bool isSourceCode)
     QFileInfo fi(name);
     if (!fi.exists() || !fi.isFile())
     {
-      err("file `%s' not found\n",name);
+      err("file '%s' not found\n",name);
       return "";
     }
     BufStr buf(fi.size());
@@ -2585,7 +2585,7 @@ QCString fileToString(const char *name,bool filter,bool isSourceCode)
   }
   if (!fileOpened)  
   {
-    err("cannot open file `%s' for reading\n",name);
+    err("cannot open file '%s' for reading\n",name);
   }
   return "";
 }
@@ -2642,7 +2642,7 @@ QCString yearToString()
 
 //----------------------------------------------------------------------
 // recursive function that returns the number of branches in the 
-// inheritance tree that the base class `bcd' is below the class `cd'
+// inheritance tree that the base class 'bcd' is below the class 'cd'
 
 int minClassDistance(const ClassDef *cd,const ClassDef *bcd,int level)
 {
@@ -2713,7 +2713,7 @@ exit:
 //  printf("(");
 //  for (;(a=ali.current());++ali)
 //  {
-//    printf("t=`%s' n=`%s' v=`%s' ",a->type.data(),!a->name.isEmpty()>0?a->name.data():"",!a->defval.isEmpty()>0?a->defval.data():""); 
+//    printf("t='%s' n='%s' v='%s' ",a->type.data(),!a->name.isEmpty()>0?a->name.data():"",!a->defval.isEmpty()>0?a->defval.data():""); 
 //  }
 //  printf(")");
 //}
@@ -2859,7 +2859,7 @@ static QCString trimScope(const QCString &name,const QCString &s)
   {
     QCString tmp;
     QCString scope=name.left(scopeOffset)+"::";
-    //printf("Trying with scope=`%s'\n",scope.data());
+    //printf("Trying with scope='%s'\n",scope.data());
 
     int i,p=0,l;
     while ((i=findScopePattern(scope,result,p,&l))!=-1) // for each occurrence
@@ -2879,7 +2879,7 @@ static QCString trimScope(const QCString &name,const QCString &s)
 
 void trimBaseClassScope(BaseClassList *bcl,QCString &s,int level=0)
 {
-  //printf("trimBaseClassScope level=%d `%s'\n",level,s.data());
+  //printf("trimBaseClassScope level=%d '%s'\n",level,s.data());
   BaseClassListIterator bcli(*bcl);
   BaseClassDef *bcd;
   for (;(bcd=bcli.current());++bcli)
@@ -2893,7 +2893,7 @@ void trimBaseClassScope(BaseClassList *bcl,QCString &s,int level=0)
           s.length()-spos-cd->name().length()-2
           );
     }
-    //printf("base class `%s'\n",cd->name().data());
+    //printf("base class '%s'\n",cd->name().data());
     if (cd->baseClasses())
       trimBaseClassScope(cd->baseClasses(),s,level+1); 
   }
@@ -3050,7 +3050,7 @@ static bool matchArgument(const Argument *srcA,const Argument *dstA,
     NamespaceSDict *usingNamespaces,
     SDict<Definition> *usingClasses)
 {
-  //printf("match argument start `%s|%s' <-> `%s|%s' using nsp=%p class=%p\n",
+  //printf("match argument start '%s|%s' <-> '%s|%s' using nsp=%p class=%p\n",
   //    srcA->type.data(),srcA->name.data(),
   //    dstA->type.data(),dstA->name.data(),
   //    usingNamespaces,
@@ -3112,7 +3112,7 @@ static bool matchArgument(const Argument *srcA,const Argument *dstA,
   //srcAType=stripTemplateSpecifiersFromScope(srcAType,FALSE);
   //dstAType=stripTemplateSpecifiersFromScope(dstAType,FALSE);
 
-  //printf("srcA=`%s|%s' dstA=`%s|%s'\n",srcAType.data(),srcAName.data(),
+  //printf("srcA='%s|%s' dstA='%s|%s'\n",srcAType.data(),srcAName.data(),
   //      dstAType.data(),dstAName.data());
 
   if (srcA->array!=dstA->array) // nomatch for char[] against char
@@ -3137,7 +3137,7 @@ static bool matchArgument(const Argument *srcA,const Argument *dstA,
     {
       srcAType=trimScope(className,srcAType);
       dstAType=trimScope(className,dstAType);
-      //printf("trimScope: `%s' <=> `%s'\n",srcAType.data(),dstAType.data());
+      //printf("trimScope: '%s' <=> '%s'\n",srcAType.data(),dstAType.data());
       ClassDef *cd;
       if (!namespaceName.isEmpty())
         cd=getClass(namespaceName+"::"+className);
@@ -3148,7 +3148,7 @@ static bool matchArgument(const Argument *srcA,const Argument *dstA,
         trimBaseClassScope(cd->baseClasses(),srcAType); 
         trimBaseClassScope(cd->baseClasses(),dstAType); 
       }
-      //printf("trimBaseClassScope: `%s' <=> `%s'\n",srcAType.data(),dstAType.data());
+      //printf("trimBaseClassScope: '%s' <=> '%s'\n",srcAType.data(),dstAType.data());
     }
     if (!namespaceName.isEmpty())
     {
@@ -3241,7 +3241,7 @@ static bool matchArgument(const Argument *srcA,const Argument *dstA,
         while (dstPos<dstATypeLen && isId(dstAType.at(dstPos))) dstPos++;
 
         // if nothing more follows for both types then we assume we have
-        // found a match. Note that now `signed int' and `signed' match, but
+        // found a match. Note that now 'signed int' and 'signed' match, but
         // seeing that int is not a name can only be done by looking at the
         // semantics.
 
@@ -3716,7 +3716,7 @@ static bool matchArgument2(
     const Definition *dstScope,const FileDef *dstFileScope,Argument *dstA
     )
 {
-  //printf(">> match argument: %s::`%s|%s' (%s) <-> %s::`%s|%s' (%s)\n",
+  //printf(">> match argument: %s::'%s|%s' (%s) <-> %s::'%s|%s' (%s)\n",
   //    srcScope ? srcScope->name().data() : "",
   //    srcA->type.data(),srcA->name.data(),srcA->canType.data(),
   //    dstScope ? dstScope->name().data() : "",
@@ -3865,7 +3865,7 @@ bool matchArguments2(const Definition *srcScope,const FileDef *srcFileScope,cons
 // pre:  the types of the arguments in the list should match.
 void mergeArguments(ArgumentList *srcAl,ArgumentList *dstAl,bool forceNameOverwrite)
 {
-  //printf("mergeArguments `%s', `%s'\n",
+  //printf("mergeArguments '%s', '%s'\n",
   //    argListToString(srcAl).data(),argListToString(dstAl).data());
 
   if (srcAl==0 || dstAl==0 || srcAl->count()!=dstAl->count())
@@ -3879,12 +3879,12 @@ void mergeArguments(ArgumentList *srcAl,ArgumentList *dstAl,bool forceNameOverwr
   {
     if (srcA->defval.isEmpty() && !dstA->defval.isEmpty())
     {
-      //printf("Defval changing `%s'->`%s'\n",srcA->defval.data(),dstA->defval.data());
+      //printf("Defval changing '%s'->'%s'\n",srcA->defval.data(),dstA->defval.data());
       srcA->defval=dstA->defval.copy();
     }
     else if (!srcA->defval.isEmpty() && dstA->defval.isEmpty())
     {
-      //printf("Defval changing `%s'->`%s'\n",dstA->defval.data(),srcA->defval.data());
+      //printf("Defval changing '%s'->'%s'\n",dstA->defval.data(),srcA->defval.data());
       dstA->defval=srcA->defval.copy();
     }
 
@@ -3906,15 +3906,15 @@ void mergeArguments(ArgumentList *srcAl,ArgumentList *dstAl,bool forceNameOverwr
       //printf("1. merging %s:%s <-> %s:%s\n",srcA->type.data(),srcA->name.data(),dstA->type.data(),dstA->name.data());
       if (srcA->name.isEmpty() && !dstA->name.isEmpty())
       {
-        //printf("type: `%s':=`%s'\n",srcA->type.data(),dstA->type.data());
-        //printf("name: `%s':=`%s'\n",srcA->name.data(),dstA->name.data());
+        //printf("type: '%s':='%s'\n",srcA->type.data(),dstA->type.data());
+        //printf("name: '%s':='%s'\n",srcA->name.data(),dstA->name.data());
         srcA->type = dstA->type.copy();
         srcA->name = dstA->name.copy();
       }
       else if (!srcA->name.isEmpty() && dstA->name.isEmpty())
       {
-        //printf("type: `%s':=`%s'\n",dstA->type.data(),srcA->type.data());
-        //printf("name: `%s':=`%s'\n",dstA->name.data(),srcA->name.data());
+        //printf("type: '%s':='%s'\n",dstA->type.data(),srcA->type.data());
+        //printf("name: '%s':='%s'\n",dstA->name.data(),srcA->name.data());
         dstA->type = srcA->type.copy();
         dstA->name = dstA->name.copy();
       }
@@ -3968,15 +3968,15 @@ void mergeArguments(ArgumentList *srcAl,ArgumentList *dstAl,bool forceNameOverwr
         j2=dstA->type.length()-i2-2;
     if (i1!=-1 && i2==-1 && srcA->type.right(j1)==dstA->type)
     {
-      //printf("type: `%s':=`%s'\n",dstA->type.data(),srcA->type.data());
-      //printf("name: `%s':=`%s'\n",dstA->name.data(),srcA->name.data());
+      //printf("type: '%s':='%s'\n",dstA->type.data(),srcA->type.data());
+      //printf("name: '%s':='%s'\n",dstA->name.data(),srcA->name.data());
       dstA->type = srcA->type.left(i1+2)+dstA->type;
       dstA->name = dstA->name.copy();
     }
     else if (i1==-1 && i2!=-1 && dstA->type.right(j2)==srcA->type)
     {
-      //printf("type: `%s':=`%s'\n",srcA->type.data(),dstA->type.data());
-      //printf("name: `%s':=`%s'\n",dstA->name.data(),srcA->name.data());
+      //printf("type: '%s':='%s'\n",srcA->type.data(),dstA->type.data());
+      //printf("name: '%s':='%s'\n",dstA->name.data(),srcA->name.data());
       srcA->type = dstA->type.left(i2+2)+srcA->type;
       srcA->name = dstA->name.copy();
     }
@@ -3988,7 +3988,7 @@ void mergeArguments(ArgumentList *srcAl,ArgumentList *dstAl,bool forceNameOverwr
     {
       dstA->docs = srcA->docs.copy();
     }
-    //printf("Merge argument `%s|%s' `%s|%s'\n",
+    //printf("Merge argument '%s|%s' '%s|%s'\n",
     //  srcA->type.data(),srcA->name.data(),
     //  dstA->type.data(),dstA->name.data());
   }
@@ -4002,7 +4002,7 @@ static void findMembersWithSpecificName(MemberName *mn,
                                         const char *forceTagFile,
                                         QList<MemberDef> &members)
 {
-  //printf("  Function with global scope name `%s' args=`%s'\n",
+  //printf("  Function with global scope name '%s' args='%s'\n",
   //       mn->memberName(),args);
   MemberNameIterator mli(*mn);
   const MemberDef *md = 0;
@@ -4010,7 +4010,7 @@ static void findMembersWithSpecificName(MemberName *mn,
   {
     const FileDef  *fd=md->getFileDef();
     const GroupDef *gd=md->getGroupDef();
-    //printf("  md->name()=`%s' md->args=`%s' fd=%p gd=%p current=%p ref=%s\n",
+    //printf("  md->name()='%s' md->args='%s' fd=%p gd=%p current=%p ref=%s\n",
     //    md->name().data(),args,fd,gd,currentFile,md->getReference().data());
     if (
         ((gd && gd->isLinkable()) || (fd && fd->isLinkable()) || md->isReference()) && 
@@ -4042,11 +4042,11 @@ static void findMembersWithSpecificName(MemberName *mn,
 }
 
 /*!
- * Searches for a member definition given its name `memberName' as a string.
+ * Searches for a member definition given its name 'memberName' as a string.
  * memberName may also include a (partial) scope to indicate the scope
  * in which the member is located.
  *
- * The parameter `scName' is a string representing the name of the scope in 
+ * The parameter 'scName' is a string representing the name of the scope in 
  * which the link was found.
  *
  * In case of a function args contains a string representation of the 
@@ -4055,12 +4055,12 @@ static void findMembersWithSpecificName(MemberName *mn,
  *
  * The function returns TRUE if the member is known and documented or
  * FALSE if it is not.
- * If TRUE is returned parameter `md' contains a pointer to the member 
- * definition. Furthermore exactly one of the parameter `cd', `nd', or `fd' 
+ * If TRUE is returned parameter 'md' contains a pointer to the member 
+ * definition. Furthermore exactly one of the parameter 'cd', 'nd', or 'fd' 
  * will be non-zero:
- *   - if `cd' is non zero, the member was found in a class pointed to by cd.
- *   - if `nd' is non zero, the member was found in a namespace pointed to by nd.
- *   - if `fd' is non zero, the member was found in the global namespace of
+ *   - if 'cd' is non zero, the member was found in a class pointed to by cd.
+ *   - if 'nd' is non zero, the member was found in a namespace pointed to by nd.
+ *   - if 'fd' is non zero, the member was found in the global namespace of
  *     file fd.
  */
 bool getDefs(const QCString &scName,
@@ -4115,7 +4115,7 @@ bool getDefs(const QCString &scName,
   // handle special the case where both scope name and member scope are equal
   if (mScope==scopeName) scopeName.resize(0);
 
-  //printf("mScope=`%s' mName=`%s'\n",mScope.data(),mName.data());
+  //printf("mScope='%s' mName='%s'\n",mScope.data(),mName.data());
 
   MemberName *mn = Doxygen::memberNameSDict->find(mName);
   //printf("mName=%s mn=%p\n",mName.data(),mn);
@@ -4316,7 +4316,7 @@ bool getDefs(const QCString &scName,
 
 
   // maybe an namespace, file or group member ?
-  //printf("Testing for global symbol scopeName=`%s' mScope=`%s' :: mName=`%s'\n",
+  //printf("Testing for global symbol scopeName='%s' mScope='%s' :: mName='%s'\n",
   //              scopeName.data(),mScope.data(),mName.data());
   if ((mn=Doxygen::functionNameSDict->find(mName))) // name is known
   {
@@ -4340,7 +4340,7 @@ bool getDefs(const QCString &scName,
           fnd->isLinkable()
          )
       {
-        //printf("Symbol inside existing namespace `%s' count=%d\n",
+        //printf("Symbol inside existing namespace '%s' count=%d\n",
         //    namespaceName.data(),mn->count());
         bool found=FALSE;
         MemberNameIterator mmli(*mn);
@@ -4481,8 +4481,8 @@ bool getDefs(const QCString &scName,
         MemberNameIterator mni(*mn);
         for (mni.toLast();(md=mni.current());--mni)
         {
-          //printf("Found member `%s'\n",md->name().data());
-          //printf("member is linkable md->name()=`%s'\n",md->name().data());
+          //printf("Found member '%s'\n",md->name().data());
+          //printf("member is linkable md->name()='%s'\n",md->name().data());
           fd=md->getFileDef();
           gd=md->getGroupDef();
           const MemberDef *tmd = md->getEnumScope();
@@ -4555,7 +4555,7 @@ static bool getScopeDefs(const char *docScope,const char *scope,
   cd=0;nd=0;
 
   QCString scopeName=scope;
-  //printf("getScopeDefs: docScope=`%s' scope=`%s'\n",docScope,scope);
+  //printf("getScopeDefs: docScope='%s' scope='%s'\n",docScope,scope);
   if (scopeName.isEmpty()) return FALSE;
 
   bool explicitGlobalScope=FALSE;
@@ -4820,10 +4820,10 @@ QCString linkToText(SrcLangExt lang,const char *link,bool isFileName)
 #if 0
 /*
  * generate a reference to a class, namespace or member.
- * `scName' is the name of the scope that contains the documentation 
+ * 'scName' is the name of the scope that contains the documentation 
  * string that is returned.
- * `name' is the name that we want to link to.
- * `name' may have five formats:
+ * 'name' is the name that we want to link to.
+ * 'name' may have the following formats:
  *    1) "ScopeName"
  *    2) "memberName()"    one of the (overloaded) function or define 
  *                         with name memberName.
@@ -4995,8 +4995,8 @@ bool resolveLink(/* in */ const char *scName,
 
 //----------------------------------------------------------------------
 // General function that generates the HTML code for a reference to some
-// file, class or member from text `lr' within the context of class `clName'. 
-// This link has the text 'lt' (if not 0), otherwise `lr' is used as a
+// file, class or member from text 'lr' within the context of class 'clName'. 
+// This link has the text 'lt' (if not 0), otherwise 'lr' is used as a
 // basis for the link's text.
 // returns TRUE if a link could be generated.
 
@@ -5733,7 +5733,7 @@ done:
     className=namespaceName.copy();
     namespaceName.resize(0);
   }
-  //printf("extractNamespace `%s' => `%s|%s'\n",scopeName.data(),
+  //printf("extractNamespace '%s' => '%s|%s'\n",scopeName.data(),
   //       className.data(),namespaceName.data());
   if (/*className.right(2)=="-g" ||*/ className.right(2)=="-p")
   {
@@ -5754,7 +5754,7 @@ QCString insertTemplateSpecifierInScope(const QCString &scope,const QCString &te
         ((cd=getClass(scope.left(si)))==0 || cd->templateArguments()==0) 
         ) 
     { 
-      //printf("Tried `%s'\n",(scope.left(si)+templ).data()); 
+      //printf("Tried '%s'\n",(scope.left(si)+templ).data()); 
       pi=si+2; 
     }
     if (si==-1) // not nested => append template specifier
@@ -5766,7 +5766,7 @@ QCString insertTemplateSpecifierInScope(const QCString &scope,const QCString &te
       result=scope.left(si) + templ + scope.right(scope.length()-si);
     }
   }
-  //printf("insertTemplateSpecifierInScope(`%s',`%s')=%s\n",
+  //printf("insertTemplateSpecifierInScope('%s','%s')=%s\n",
   //    scope.data(),templ.data(),result.data());
   return result;
 }
@@ -6686,7 +6686,7 @@ PageDef *addRelatedPage(const char *name,const QCString &ptitle,
   {
     // append documentation block to the page.
     pd->setDocumentation(doc,fileName,startLine);
-    //printf("Adding page docs `%s' pi=%p name=%s\n",doc.data(),pd,name);
+    //printf("Adding page docs '%s' pi=%p name=%s\n",doc.data(),pd,name);
     // append (x)refitems to the page.
     pd->setRefItems(sli);
   }
@@ -6710,7 +6710,7 @@ PageDef *addRelatedPage(const char *name,const QCString &ptitle,
       pd->setFileName(tagInfo->fileName);
     }
 
-    //printf("Appending page `%s'\n",baseName.data());
+    //printf("Appending page '%s'\n",baseName.data());
     Doxygen::pageSDict->append(baseName,pd);
 
     if (gd) gd->addPage(pd);
@@ -6745,7 +6745,7 @@ PageDef *addRelatedPage(const char *name,const QCString &ptitle,
       {
         si=new SectionInfo(
             file,-1,pd->name(),pd->title(),SectionInfo::Page,0,pd->getReference());
-        //printf("si->label=`%s' si->definition=%s si->fileName=`%s'\n",
+        //printf("si->label='%s' si->definition=%s si->fileName='%s'\n",
         //      si->label.data(),si->definition?si->definition->name().data():"<none>",
         //      si->fileName.data());
         //printf("  SectionInfo: sec=%p sec->fileName=%s\n",si,si->fileName.data());
@@ -8148,8 +8148,8 @@ QCString filterTitle(const QCString &title)
 }
 
 //----------------------------------------------------------------------------
-// returns TRUE if the name of the file represented by `fi' matches
-// one of the file patterns in the `patList' list.
+// returns TRUE if the name of the file represented by 'fi' matches
+// one of the file patterns in the 'patList' list.
 
 bool patternMatch(const QFileInfo &fi,const QStrList *patList)
 {
@@ -8183,7 +8183,7 @@ bool patternMatch(const QFileInfo &fi,const QStrList *patList)
                 re.match(fp)!=-1 ||
                 re.match(afp)!=-1;
         if (found) break;
-        //printf("Matching `%s' against pattern `%s' found=%d\n",
+        //printf("Matching '%s' against pattern '%s' found=%d\n",
         //    fi->fileName().data(),pattern.data(),found);
       }
     }
diff --git a/src/vhdlcode.l b/src/vhdlcode.l
index 7c6cfa4..5f668c6 100644
--- a/src/vhdlcode.l
+++ b/src/vhdlcode.l
@@ -347,7 +347,7 @@ static void writeWord(const char *word,const char* curr_class=0,bool classLink=F
 }// writeWord
 
 
-/*! write a code fragment `text' that may span multiple lines, inserting
+/*! write a code fragment 'text' that may span multiple lines, inserting
  * line numbers for each line.
  */
 static void codifyLines(const char *text,const char *cl=0,bool classlink=FALSE,bool comment=FALSE)
diff --git a/src/xmldocvisitor.cpp b/src/xmldocvisitor.cpp
index 0344642..a0afa9d 100644
--- a/src/xmldocvisitor.cpp
+++ b/src/xmldocvisitor.cpp
@@ -410,7 +410,7 @@ void XmlDocVisitor::visit(DocInclude *inc)
 
 void XmlDocVisitor::visit(DocIncOperator *op)
 {
-  //printf("DocIncOperator: type=%d first=%d, last=%d text=`%s'\n",
+  //printf("DocIncOperator: type=%d first=%d, last=%d text='%s'\n",
   //    op->type(),op->isFirst(),op->isLast(),op->text().data());
   if (op->isFirst()) 
   {
diff --git a/src/xmlgen.cpp b/src/xmlgen.cpp
index 16abbf2..d05adf0 100644
--- a/src/xmlgen.cpp
+++ b/src/xmlgen.cpp
@@ -568,7 +568,7 @@ static void generateXMLForMember(const MemberDef *md,FTextStream &ti,FTextStream
   {
     t << memberOutputFileBase(md);
   }
-  t << "_1"      // encoded `:' character (see util.cpp:convertNameToFile)
+  t << "_1"      // encoded ':' character (see util.cpp:convertNameToFile)
     << md->anchor();
   t << "\" prot=\"";
   switch(md->protection())