clear FunctionManager in OpenFile

Common/OpenFile.cpp

@@ -27,6 +27,7 @@
 
 #if defined(HAVE_PARSER)
 #include "Parser.h"
+#include "FunctionManager.h"
 #endif
 
 #if defined(HAVE_MESH)
@@ -679,6 +680,7 @@ void OpenProject(const std::string &fileName, bool setWindowTitle)
   std::map<std::string, std::string> cls(Msg::GetCommandLineStrings());
   for(std::map<std::string, std::string>::iterator it = cls.begin(); it != cls.end(); it++)
     gmsh_yystringsymbols[it->first] = it->second;
+  FunctionManager::Instance()->clear();
 #endif
 
   // temporary hack until we fill the current GModel on the fly during parsing

Parser/FunctionManager.cpp

@@ -45,6 +45,11 @@ FunctionManager *FunctionManager::Instance()
   return instance;
 }
 
+void FunctionManager::clear()
+{
+  functions->m.clear();
+}
+
 int FunctionManager::enterFunction(const std::string &name, gmshFILE * f,
                                    std::string &filename, int &lno) const
 {

Parser/FunctionManager.h

@@ -27,6 +27,7 @@ class FunctionManager
   int enterFunction(const std::string &name, gmshFILE *f,
                     std::string &filename, int &lineno) const;
   int leaveFunction(gmshFILE *f, std::string &filename, int &lineno);
+  void clear();
 };
 
 #endif