diff --git a/src/common.h b/src/common.h
index 3391b0f..77f00ea 100644
--- a/src/common.h
+++ b/src/common.h
@@ -1,15 +1,261 @@
 #ifndef COMMON_H
 #define COMMON_H
 #include <iostream>
+#include <memory>
+#include <set>
 #include <string>
+#include <sstream>
+#include <typeindex>
+#include <typeinfo>
+#include <vector>
 
 #define EXPORT __attribute__ ((visibility ("default")))
 
 enum debug_level {INTERNALREQUEST,MOREDEBUG,DEBUG,INFO,NORMAL,WARNING,ERROR};
 EXPORT std::ostream& COUT(debug_level dl);
 
-class ObjectBase;
-class ObjectList;
+// Check if pointer is ObjectBase derivative class
+#define IS_OTYPE(quo,equ) (std::type_index(typeid(*quo))==std::type_index(typeid(equ)))
+#define IS_OTYPEI(quo,equ) (std::type_index(typeid(quo))==std::type_index(typeid(equ)))
+
+typedef std::set<std::string> UsedType;
+
+// Base class for all objects
+class EXPORT ObjectBase
+{
+protected:
+// No save by default
+virtual const int8_t* Blob(size_t* size) const { *size=0; return 0; }
+virtual void DeallocBlob(const void* ptr) const {};
+public:
+
+ ObjectBase() = default;
+ ObjectBase(const ObjectBase&) = delete;
+ bool Save(const char* fname) const;
+ // Pure virtual api
+ virtual ~ObjectBase(){}
+ virtual ObjectBase* Copy() const=0;
+ virtual bool Print() const=0;
+ virtual std::string Type() const=0;
+
+ // Virtual api with default functions. Modules types must not override them.
+ virtual std::string Dump() const {return "%"+Type()+"%";}
+ virtual ObjectBase* Evaluate(bool* err) {*err=false; return 0;}
+ virtual ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) {return 0;}
+ virtual void UsedFuncs(UsedType& funcs) const {}
+ virtual void UsedIdents(UsedType& ids) const {}
+};
+
+// Template for objects without specific constructor/destructor
+template<class T>
+class EXPORT ObjectSimple: public ObjectBase
+{
+private:
+ T val;
+ static std::string type;
+
+ const int8_t* Blob(size_t* size) const override {*size=sizeof(T); return reinterpret_cast<const int8_t*>(&val);}
+
+public:
+ ObjectSimple(T t):val(t) {}
+ ObjectSimple(const T* t):val(*t) {}
+ ~ObjectSimple() {}
+ // Pure virtual overrides
+ ObjectBase* Copy() const override {return new ObjectSimple<T>(val);}
+ bool Print() const override
+ {
+  COUT(NORMAL)<<std::endl<<"Object type: "<<Type()<<std::endl;
+  COUT(NORMAL)<<"Value: "<<val<<std::endl;
+  return true;
+ }
+ std::string Type() const override {return type;}
+
+ // Non-default overrides
+ std::string Dump() const override
+ {
+  std::stringstream s;
+  if(std::type_index(typeid(T))==std::type_index(typeid(std::string)))
+   s<<"\""<<val<<"\"";
+  else
+   s<<val;
+  return s.str();
+ }
+
+ // Own functions
+ T Value() const {return val;}
+ void SetValue(T s) {val=s;}
+};
+
+// Simple objects
+typedef ObjectSimple<bool> ObjectBool;
+typedef ObjectSimple<int64_t> ObjectInt;
+typedef ObjectSimple<double> ObjectReal;
+typedef ObjectSimple<std::string> ObjectString;
+
+template<>
+inline const int8_t* ObjectString::Blob(size_t* size) const
+{
+ *size=val.length();
+ return reinterpret_cast<const int8_t*>(val.c_str());
+}
+
+// Class for name-value pair
+class EXPORT ObjectPair: public ObjectBase
+{
+private:
+ std::string name;
+ std::shared_ptr<ObjectBase> val;
+
+public:
+ ObjectPair() {}
+ ObjectPair(const std::string& n, ObjectBase* v):name(n) {val.reset(v);}
+ ObjectPair(const std::string* n, ObjectBase* v):name(*n) {val.reset(v);}
+ ~ObjectPair() {}
+ // Pure virtual overrides
+ ObjectBase* Copy() const override
+ {
+  auto ret=new ObjectPair;
+  ret->name=name; ret->val=val;
+  return ret;
+ }
+ bool Print() const override
+ {
+  if(!Exist()) return false;
+  COUT(NORMAL)<<std::endl<<"Object type: "<<Type()<<std::endl;
+  COUT(NORMAL)<<"Name is: "<<Name()<<std::endl;
+  COUT(NORMAL)<<"Value type: "<<val->Type()<<std::endl;
+  return true;
+ }
+ std::string Type() const override {return "pair";}
+
+ // Non-default overrides
+ std::string Dump() const override { return Name()+"="+val->Dump(); }
+ ObjectBase* Evaluate(bool* err) override
+ {
+  auto p=val->Evaluate(err);
+  if(*err)
+  {
+   COUT(ERROR)<<" in pair "<<Dump()<<std::endl;
+   return 0;
+  }
+  if(0==p) return 0;
+  val.reset(p);
+  return 0;
+ }
+ ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) override
+ {
+  auto p=val->ReplaceVar(vname,ob);
+  if(0!=p) val.reset(p);
+  return 0;
+ }
+ void UsedFuncs(UsedType& funcs) const override {return val->UsedFuncs(funcs);}
+ void UsedIdents(UsedType& ids) const override {return val->UsedIdents(ids);}
+
+ // Own functions
+ bool Exist() const {return 0!=val.get();}
+ ObjectBase* Get(const std::string& gname) const
+ {
+  if(gname==name) return val->Copy();
+  else return 0;
+ }
+ std::string Name() const {return name;}
+ void SetPair(const std::string& n, ObjectBase* v) {if(!Exist()) {name=n; val.reset(v);}}
+ const ObjectBase* Value() const {return val.get();}
+};
+
+// Class for objects list
+class EXPORT ObjectList: public ObjectBase
+{
+public:
+ typedef std::vector<ObjectBase*> ListValues;
+private:
+ std::shared_ptr<ListValues> vals;
+
+public:
+ ObjectList() {vals.reset(new ListValues, [](ListValues* p){for(auto& i: *p) delete i; delete p;});}
+ ObjectList(ObjectBase* o) {vals.reset(new ListValues, [](ListValues* p){for(auto& i: *p) delete i; delete p;}); PushBack(o);}
+ ~ObjectList() {}
+ // Pure virtual overrides
+ ObjectBase* Copy() const override
+ {
+  auto ret=new ObjectList;
+  ret->vals=vals;
+  return ret;
+ }
+ bool Print() const override
+ {
+  if(!Exist()) return false;
+  COUT(NORMAL)<<std::endl<<"Object type: "<<Type()<<std::endl;
+  COUT(NORMAL)<<"Number of elements: "<<Size()<<std::endl;
+  return true;
+ }
+ std::string Type() const override {return "list";}
+
+ // Non-default overrides
+ std::string Dump() const override
+ {
+  std::string s("(");
+  for(auto& i: *vals) s+=i->Dump()+", ";
+  if(vals->size()!=0) s.resize(s.length()-2);
+  return s+")";
+ }
+ ObjectBase* Evaluate(bool* err) override
+ {
+  ObjectBase* p;
+  for(auto& i: *vals)
+  {
+   p=i->Evaluate(err);
+   if(*err)
+   {
+    COUT(ERROR)<<" in list member "<<i->Dump()<<std::endl;
+    return 0;
+   }
+   if(0!=p)
+   {
+    delete i;
+    i=p;
+   }
+  }
+  return 0;
+ }
+ ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) override
+ {
+  ObjectBase* p;
+  for(auto& i: *vals)
+  {
+   p=i->ReplaceVar(vname,ob);
+   if(0!=p)
+   {
+    delete i;
+    i=p;
+   }
+  }
+  return 0;
+ }
+ void UsedFuncs(UsedType& funcs) const override {for(auto& i: *vals) i->UsedFuncs(funcs);}
+ void UsedIdents(UsedType& ids) const override {for(auto& i: *vals) i->UsedIdents(ids);}
+
+ // Own functions
+ const ObjectBase* At(ListValues::size_type i) const {return (*vals)[i];}
+ bool Exist() const {return 0!=vals->size();}
+ ObjectBase* Get(const std::string& gname) const
+ {
+  ObjectBase* p;
+  for(auto& i: *vals)
+  {
+   p=0;
+   if(IS_OTYPE(i,ObjectPair)) p=dynamic_cast<const ObjectPair*>(i)->Get(gname);
+   if(0!=p) return p;
+   if(IS_OTYPE(i,ObjectList)) p=dynamic_cast<const ObjectList*>(i)->Get(gname);
+   if(0!=p) return p;
+  }
+  return 0;
+ }
+ ListValues::size_type Size() const {return vals->size();}
+ ObjectList* PushBack(ObjectBase* p) {vals->push_back(p); return this;}
+};
+
+
 typedef ObjectBase* (*Func)(ObjectList*);
 
 extern "C" {
diff --git a/src/debug.cpp b/src/debug.cpp
deleted file mode 100644
index 0c5579b..0000000
--- a/src/debug.cpp
+++ /dev/null
@@ -1,19 +0,0 @@
-#include <iostream>
-#include "debug.h"
-
-std::ostream& COUT(debug_level dl)
-{
- if(dl==ERROR) return std::cerr;
- if(dl>=SetDebugLevel(INTERNALREQUEST)) std::cout.clear();
- else std::cout.setstate(std::cout.failbit);
- return std::cout;
-}
-
-debug_level SetDebugLevel(debug_level dl)
-{
- static debug_level DEBUG_LEVEL=INFO;
- if(dl==INTERNALREQUEST) return DEBUG_LEVEL;
- debug_level s=DEBUG_LEVEL;
- DEBUG_LEVEL=dl;
- return s;
-}
diff --git a/src/debug.h b/src/debug.h
deleted file mode 100644
index 6e2426e..0000000
--- a/src/debug.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef DEBUG_H
-#define DEBUG_H
-#include <iostream>
-#include "common.h"
-
-debug_level SetDebugLevel(debug_level dl=INTERNALREQUEST);
-
-#endif
diff --git a/src/init.cpp b/src/init.cpp
index e3c775f..beebf6d 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1,6 +1,5 @@
 #include <inttypes.h>
 #include "init.h"
-#include "debug.h"
 #include "object.h"
 #include "globals.h"
 #include "builtin.h"
@@ -18,34 +17,58 @@ typedef void* yyscan_t;
 #undef YYSTYPE
 #undef YYLTYPE
 
+int BuildDepTree(DepTree* deptree, UsedType& used) {return deptree->CreateGlobalTree(used);}
 
-int ParseOptions(int argc, char** argv, struct program_options& options)
+
+int CheckFunctions()
 {
- int opt=0;
- const char* optstr="t:hdgiq";
+ UsedType funcs;
 
- optind=1;
- do
+ for(auto& i:G_tosave)
  {
-  opt=getopt(argc,argv,optstr);
-  switch(opt)
+  i->UsedFuncs(funcs);
+  for(auto& f:funcs) if(G_funcs.find(f)==G_funcs.end())
   {
-   case(-1): break;
-   case('t'):{options.threads=atoi(optarg); if(options.threads<1) return 1; else break;}
-   case('h'):{options.help=true; break;}
-   case('d'):{options.dump=true; break;}
-   case('g'):{options.dl=DEBUG; break;}
-   case('i'):{options.dl=INFO; break;}
-   case('q'):{options.dl=WARNING; break;}
-   default: return 1;
+   COUT(ERROR)<<"Unknown function "<<f<<" in directive save"<<i->Dump()<<std::endl;
+   return 1;
   }
- } while(-1!=opt);
- if(optind!=argc-1) return 1;
- options.config=argv[optind];
+  funcs.clear();
+ }
+
+ for(auto& i:G_toprint)
+ {
+  i->UsedFuncs(funcs);
+  for(auto& f:funcs) if(G_funcs.find(f)==G_funcs.end())
+  {
+   COUT(ERROR)<<"Unknown function "<<f<<" in directive print"<<i->Dump()<<std::endl;
+   return 1;
+  }
+  funcs.clear();
+ }
+
+ for(auto& i:G_vars)
+ {
+  i.second->UsedFuncs(funcs);
+  for(auto& f:funcs) if(G_funcs.find(f)==G_funcs.end())
+  {
+   COUT(ERROR)<<"Unknown function "<<f<<" in definition of variable "<<i.first<<std::endl;
+   return 1;
+  }
+  funcs.clear();
+ }
+
  return 0;
 }
 
 
+void DumpConfig()
+{
+ for(auto& i: G_vars) COUT(NORMAL)<<i.first<<"="+i.second->Dump()<<";"<<std::endl;
+ for(auto& i: G_tosave) COUT(NORMAL)<<"save"<<i->Dump()<<";"<<std::endl;
+ for(auto& i: G_toprint) COUT(NORMAL)<<"print"<<i->Dump()<<";"<<std::endl;
+}
+
+
 int ParseConfigFile(const char* config)
 {
  yyscan_t scanner;
@@ -80,6 +103,33 @@ int ParseConfigFile(const char* config)
 }
 
 
+int ParseOptions(int argc, char** argv, struct program_options& options)
+{
+ int opt=0;
+ const char* optstr="t:hdgiq";
+
+ optind=1;
+ do
+ {
+  opt=getopt(argc,argv,optstr);
+  switch(opt)
+  {
+   case(-1): break;
+   case('t'):{options.threads=atoi(optarg); if(options.threads<1) return 1; else break;}
+   case('h'):{options.help=true; break;}
+   case('d'):{options.dump=true; break;}
+   case('g'):{options.dl=DEBUG; break;}
+   case('i'):{options.dl=INFO; break;}
+   case('q'):{options.dl=WARNING; break;}
+   default: return 1;
+  }
+ } while(-1!=opt);
+ if(optind!=argc-1) return 1;
+ options.config=argv[optind];
+ return 0;
+}
+
+
 int RegisterBuiltinFunctions()
 {
  RegisterFunction("ADD",Arifm_Add);
@@ -96,56 +146,20 @@ int RegisterBuiltinFunctions()
 }
 
 
-int BuildDepTree(DepTree* deptree, UsedType& used)
-{
- return deptree->CreateGlobalTree(used);
-}
-
-
-int CheckFunctions()
+debug_level SetDebugLevel(debug_level dl)
 {
- UsedType funcs;
-
- for(auto& i:G_tosave)
- {
-  i->UsedFuncs(funcs);
-  for(auto& f:funcs) if(G_funcs.find(f)==G_funcs.end())
-  {
-   COUT(ERROR)<<"Unknown function "<<f<<" in directive save"<<i->Dump()<<std::endl;
-   return 1;
-  }
-  funcs.clear();
- }
-
- for(auto& i:G_toprint)
- {
-  i->UsedFuncs(funcs);
-  for(auto& f:funcs) if(G_funcs.find(f)==G_funcs.end())
-  {
-   COUT(ERROR)<<"Unknown function "<<f<<" in directive print"<<i->Dump()<<std::endl;
-   return 1;
-  }
-  funcs.clear();
- }
-
- for(auto& i:G_vars)
- {
-  i.second->UsedFuncs(funcs);
-  for(auto& f:funcs) if(G_funcs.find(f)==G_funcs.end())
-  {
-   COUT(ERROR)<<"Unknown function "<<f<<" in definition of variable "<<i.first<<std::endl;
-   return 1;
-  }
-  funcs.clear();
- }
-
- return 0;
+ static debug_level DEBUG_LEVEL=INFO;
+ if(dl==INTERNALREQUEST) return DEBUG_LEVEL;
+ debug_level s=DEBUG_LEVEL;
+ DEBUG_LEVEL=dl;
+ return s;
 }
 
 
-void DumpConfig()
+std::ostream& COUT(debug_level dl)
 {
- for(auto& i: G_vars) COUT(NORMAL)<<i.first<<"="+i.second->Dump()<<";"<<std::endl;
- for(auto& i: G_tosave) COUT(NORMAL)<<"save"<<i->Dump()<<";"<<std::endl;
- for(auto& i: G_toprint) COUT(NORMAL)<<"print"<<i->Dump()<<";"<<std::endl;
-}
+ if(dl==ERROR) return std::cerr;
+ if(dl>=SetDebugLevel(INTERNALREQUEST)) std::cout.clear();
+ else std::cout.setstate(std::cout.failbit);
+ return std::cout;
+}
\ No newline at end of file
diff --git a/src/init.h b/src/init.h
index 40cb75f..727ebc5 100644
--- a/src/init.h
+++ b/src/init.h
@@ -10,11 +10,12 @@ struct program_options
  const char* config;
 };
 
-int ParseOptions(int argc, char** argv, struct program_options& options);
-int ParseConfigFile(const char* config);
-int RegisterBuiltinFunctions();
 int BuildDepTree(DepTree* deptree, UsedType& used);
 int CheckFunctions();
 void DumpConfig();
+int ParseConfigFile(const char* config);
+int ParseOptions(int argc, char** argv, struct program_options& options);
+int RegisterBuiltinFunctions();
+debug_level SetDebugLevel(debug_level dl=INTERNALREQUEST);
 
 #endif
diff --git a/src/main.cpp b/src/main.cpp
index e7c1a3b..63e340b 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,6 +1,4 @@
-#include "debug.h"
 #include "init.h"
-#include "globals.h"
 
 static void usage(const char* prg)
 {
diff --git a/src/object.cpp b/src/object.cpp
index e7193d2..44537ab 100644
--- a/src/object.cpp
+++ b/src/object.cpp
@@ -6,6 +6,44 @@ template<> EXPORT std::string ObjectSimple<int64_t>::type="integer";
 template<> EXPORT std::string ObjectSimple<double>::type="real";
 template<> EXPORT std::string ObjectSimple<std::string>::type="string";
 
+bool ObjectBase::Save(const char* fname) const
+{
+ size_t size,offset=0,wr;
+ const int8_t* dptr;
+ FILE* fd;
+ int serrno;
+
+ fd=fopen(fname,"w");
+ serrno=errno;
+ if(0==fd)
+ {
+  COUT(ERROR)<<"Can't open file "<<fname<<" for writing: "<<strerror(serrno)<<std::endl;
+  return false;
+ }
+ dptr=Blob(&size);
+ if(0==dptr)
+ {
+  COUT(ERROR)<<"Can't get blob for writing to "<<fname<<std::endl;
+  fclose(fd);
+  return false;
+ }
+ while(offset!=size)
+ {
+  wr=fwrite(dptr+offset,1,size-offset,fd);
+  if(0==wr)
+  {
+   COUT(ERROR)<<"Failed to write in file "<<fname<<std::endl;
+   fclose(fd); DeallocBlob(dptr);
+   return false;
+  }
+  offset+=wr;
+ }
+ fclose(fd);
+ DeallocBlob(dptr);
+ return true;
+}
+
+
 ObjectBase* OFunc::Evaluate(bool* err)
 {
  *err=false;
diff --git a/src/object.h b/src/object.h
index 687efce..44ad3d3 100644
--- a/src/object.h
+++ b/src/object.h
@@ -4,278 +4,7 @@
 #include <errno.h>
 #include <string.h>
 #include <inttypes.h>
-#include <vector>
-#include <sstream>
-#include <set>
-#include <memory>
-#include <typeinfo>
-#include <typeindex>
-#include "debug.h"
-
-// Check if pointer is ObjectBase derivative class
-#define IS_OTYPE(quo,equ) (std::type_index(typeid(*quo))==std::type_index(typeid(equ)))
-#define IS_OTYPEI(quo,equ) (std::type_index(typeid(quo))==std::type_index(typeid(equ)))
-
-typedef std::set<std::string> UsedType;
-
-// Base class for all objects
-class EXPORT ObjectBase
-{
-protected:
-// No save by default
-virtual const int8_t* Blob(size_t* size) const { *size=0; return 0; }
-virtual void DeallocBlob(const void* ptr) const {};
-public:
-
- ObjectBase() = default;
- ObjectBase(const ObjectBase&) = delete;
- virtual ~ObjectBase(){}
- virtual std::string Type() const=0;
- virtual bool Print() const=0;
- bool Save(const char* fname) const
- {
-  size_t size,offset=0,wr;
-  const int8_t* dptr;
-  FILE* fd;
-  int serrno;
-
-  fd=fopen(fname,"w");
-  serrno=errno;
-  if(0==fd)
-  {
-   COUT(ERROR)<<"Can't open file "<<fname<<" for writing: "<<strerror(serrno)<<std::endl;
-   return false;
-  }
-  dptr=Blob(&size);
-  if(0==dptr)
-  {
-   COUT(ERROR)<<"Can't get blob for writing to "<<fname<<std::endl;
-   fclose(fd);
-   return false;
-  }
-  while(offset!=size)
-  {
-   wr=fwrite(dptr+offset,1,size-offset,fd);
-   if(0==wr)
-   {
-    COUT(ERROR)<<"Failed to write in file "<<fname<<std::endl;
-    fclose(fd); DeallocBlob(dptr);
-    return false;
-   }
-   offset+=wr;
-  }
-  fclose(fd);
-  DeallocBlob(dptr);
-  return true;
- }
- virtual std::string Dump() const {return "%"+Type()+"%";}
- virtual void UsedFuncs(UsedType& funcs) const {}
- virtual void UsedIdents(UsedType& ids) const {}
- virtual ObjectBase* Copy() const=0;
- virtual ObjectBase* Evaluate(bool* err) {*err=false; return 0;}
- virtual ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) {return 0;}
-};
-
-// Template for objects without specific constructor/destructor
-template<class T>
-class EXPORT ObjectSimple: public ObjectBase
-{
-private:
- T val;
- static std::string type;
-
- const int8_t* Blob(size_t* size) const override
- {
-  *size=sizeof(T);
-  return reinterpret_cast<const int8_t*>(&val);
- }
-
-public:
- ObjectSimple(T t):val(t) {}
- ObjectSimple(const T* t):val(*t) {}
- ~ObjectSimple() {}
- bool Print() const override
- {
-  COUT(NORMAL)<<std::endl<<"Object type: "<<Type()<<std::endl;
-  COUT(NORMAL)<<"Value: "<<val<<std::endl;
-  return true;
- }
- std::string Type() const override {return type;}
- T Value() const {return val;}
- void SetValue(T s) {val=s;}
- std::string Dump() const override
- {
-  std::stringstream s;
-  if(std::type_index(typeid(T))==std::type_index(typeid(std::string)))
-   s<<"\""<<val<<"\"";
-  else
-   s<<val;
-  return s.str();
- }
- ObjectBase* Copy() const override {return new ObjectSimple<T>(val);}
-};
-
-// Simple objects
-typedef ObjectSimple<bool> ObjectBool;
-typedef ObjectSimple<int64_t> ObjectInt;
-typedef ObjectSimple<double> ObjectReal;
-typedef ObjectSimple<std::string> ObjectString;
-
-template<>
-inline const int8_t* ObjectString::Blob(size_t* size) const
-{
- *size=val.length();
- return reinterpret_cast<const int8_t*>(val.c_str());
-}
-
-// Class for name-value pair
-class EXPORT ObjectPair: public ObjectBase
-{
-private:
- std::string name;
- std::shared_ptr<ObjectBase> val;
-
-public:
- ObjectPair() {}
- ObjectPair(const std::string& n, ObjectBase* v):name(n) {val.reset(v);}
- ObjectPair(const std::string* n, ObjectBase* v):name(*n) {val.reset(v);}
- ~ObjectPair() {}
- bool Exist() const {return 0!=val.get();}
-
- bool Print() const override
- {
-  if(!Exist()) return false;
-  COUT(NORMAL)<<std::endl<<"Object type: "<<Type()<<std::endl;
-  COUT(NORMAL)<<"Name is: "<<Name()<<std::endl;
-  COUT(NORMAL)<<"Value type: "<<val->Type()<<std::endl;
-  return true;
- }
- std::string Type() const override {return "pair";}
- std::string Name() const {return name;}
- const ObjectBase* Value() const {return val.get();}
- void SetPair(const std::string& n, ObjectBase* v) {if(!Exist()) {name=n; val.reset(v);}}
- std::string Dump() const override { return Name()+"="+val->Dump(); }
- void UsedFuncs(UsedType& funcs) const override {return val->UsedFuncs(funcs);}
- void UsedIdents(UsedType& ids) const override {return val->UsedIdents(ids);}
- ObjectBase* Copy() const override
- {
-  auto ret=new ObjectPair;
-  ret->name=name;
-  ret->val=val;
-  return ret;
- }
- ObjectBase* Evaluate(bool* err) override
- {
-  auto p=val->Evaluate(err);
-  if(*err)
-  {
-   COUT(ERROR)<<" in pair "<<Dump()<<std::endl;
-   return 0;
-  }
-  if(0==p) return 0;
-  val.reset(p);
-  return 0;
- }
- ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) override
- {
-  auto p=val->ReplaceVar(vname,ob);
-  if(0!=p) val.reset(p);
-  return 0;
- }
- ObjectBase* Get(const std::string& gname) const
- {
-  if(gname==name) return val->Copy();
-  else return 0;
- }
-};
-
-// Class for objects list
-class EXPORT ObjectList: public ObjectBase
-{
-public:
- typedef std::vector<ObjectBase*> ListValues;
-private:
- std::shared_ptr<ListValues> vals;
-
-public:
- ObjectList() {vals.reset(new ListValues, [](ListValues* p){for(auto& i: *p) delete i; delete p;});}
- ObjectList(ObjectBase* o) {vals.reset(new ListValues, [](ListValues* p){for(auto& i: *p) delete i; delete p;}); PushBack(o);}
- ~ObjectList() {}
- bool Exist() const {return 0!=vals->size();}
-
- bool Print() const override
- {
-  if(!Exist()) return false;
-  COUT(NORMAL)<<std::endl<<"Object type: "<<Type()<<std::endl;
-  COUT(NORMAL)<<"Number of elements: "<<Size()<<std::endl;
-  return true;
- }
- ListValues::size_type Size() const {return vals->size();}
- std::string Type() const override {return "list";}
- ObjectList* PushBack(ObjectBase* p) {vals->push_back(p); return this;}
- const ObjectBase* At(ListValues::size_type i) const {return (*vals)[i];}
- std::string Dump() const override
- {
-  std::string s("(");
-  for(auto& i: *vals) s+=i->Dump()+", ";
-  if(vals->size()!=0) s.resize(s.length()-2);
-  return s+")";
- }
- void UsedFuncs(UsedType& funcs) const override {for(auto& i: *vals) i->UsedFuncs(funcs);}
- void UsedIdents(UsedType& ids) const override {for(auto& i: *vals) i->UsedIdents(ids);}
- ObjectBase* Copy() const override
- {
-  auto ret=new ObjectList;
-  ret->vals=vals;
-  return ret;
- }
- ObjectBase* Evaluate(bool* err) override
- {
-  ObjectBase* p;
-  for(auto& i: *vals)
-  {
-   p=i->Evaluate(err);
-   if(*err)
-   {
-    COUT(ERROR)<<" in list member "<<i->Dump()<<std::endl;
-    return 0;
-   }
-   if(0!=p)
-   {
-    delete i;
-    i=p;
-   }
-  }
-  return 0;
- }
- ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) override
- {
-  ObjectBase* p;
-  for(auto& i: *vals)
-  {
-   p=i->ReplaceVar(vname,ob);
-   if(0!=p)
-   {
-    delete i;
-    i=p;
-   }
-  }
-  return 0;
- }
- ObjectBase* Get(const std::string& gname) const
- {
-  ObjectBase* p;
-  for(auto& i: *vals)
-  {
-   p=0;
-   if(IS_OTYPE(i,ObjectPair)) p=dynamic_cast<const ObjectPair*>(i)->Get(gname);
-   if(0!=p) return p;
-   if(IS_OTYPE(i,ObjectList)) p=dynamic_cast<const ObjectList*>(i)->Get(gname);
-   if(0!=p) return p;
-  }
-  return 0;
- }
-};
+#include "common.h"
 
 // Class for storing identifiers
 class OId: public ObjectBase
@@ -285,17 +14,17 @@ class OId: public ObjectBase
 public:
  OId(const std::string* t):name(*t) {}
  ~OId() {}
- bool Print() const override {return false;}
- std::string Type() const override {return "IDENT";}
- std::string Name() const {return name;}
- void SetName(const std::string& s) {name=s;}
- std::string Dump() const override {return name;};
- void UsedIdents(UsedType& ids) const override {ids.insert(name);}
+ // Pure virtual overrides
  ObjectBase* Copy() const override
  {
   COUT(WARNING)<<"OId::Copy: this call must never be happens."<<std::endl;
   return new OId(&name);
  }
+ bool Print() const override {return false;}
+ std::string Type() const override {return "IDENT";}
+
+ // Non-default overrides
+ std::string Dump() const override {return name;};
  ObjectBase* Evaluate(bool* err) override
  {
   COUT(ERROR)<<"Variable "<<name<<" still not defined."<<std::endl;
@@ -307,6 +36,11 @@ public:
   if(vname==Name()) return ob->Copy();
   else return 0;
  }
+ void UsedIdents(UsedType& ids) const override {ids.insert(name);}
+
+ // Own functions
+ std::string Name() const {return name;}
+// void SetName(const std::string& s) {name=s;}
 };
 
 // Class for storing functions
@@ -326,23 +60,25 @@ public:
   else args=new ObjectList(p);
  }
  ~OFunc() {if(args!=0) delete args;}
- bool Print() const override {return false;}
- std::string Type() const override {return "FUNC";}
- std::string Name() const {return name;}
- void SetName(std::string s) {name=s;}
- std::string Dump() const override {return Name()+args->Dump();};
- void UsedFuncs(UsedType& funcs) const override {funcs.insert(name); args->UsedFuncs(funcs);}
- void UsedIdents(UsedType& ids) const override {args->UsedIdents(ids);}
+ // Pure virtual overrides
  ObjectBase* Copy() const override
  {
   COUT(WARNING)<<"OFunc::Copy: this call must never be happens."<<std::endl;
   return new OFunc(&name,args->Copy());
  }
+ bool Print() const override {return false;}
+ std::string Type() const override {return "FUNC";}
+
+ // Non-default overrides
+ std::string Dump() const override {return Name()+args->Dump();};
  ObjectBase* Evaluate(bool* err) override;
- ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) override
- {
-  return args->ReplaceVar(vname,ob);
- }
+ ObjectBase* ReplaceVar(const std::string& vname, ObjectBase* ob) override {return args->ReplaceVar(vname,ob);}
+ void UsedFuncs(UsedType& funcs) const override {funcs.insert(name); args->UsedFuncs(funcs);}
+ void UsedIdents(UsedType& ids) const override {args->UsedIdents(ids);}
+
+ // Own functions
+ std::string Name() const {return name;}
+// void SetName(std::string s) {name=s;}
 };
 
 #endif
diff --git a/src/parser/grammatical.y b/src/parser/grammatical.y
index fbad0c3..1bddc3d 100644
--- a/src/parser/grammatical.y
+++ b/src/parser/grammatical.y
@@ -18,7 +18,6 @@
 #include <inttypes.h>
 #include <algorithm>
 #include "parser.h"
-#include "../debug.h"
 #include "../object.h"
 #include "../globals.h"
 // We can't include lexical.h before grammatical.h, because of strange errors, but grammatical.h only needs definition of yyscan_t
diff --git a/src/parser/lexical.l b/src/parser/lexical.l
index 2fa9534..95af407 100644
--- a/src/parser/lexical.l
+++ b/src/parser/lexical.l
@@ -15,7 +15,7 @@
 %x INCLUDE
 
 %{
-#include "../debug.h"
+#include "../common.h"
 #include "parser.h"
 // flex use register keyword, but it deprecated in C++11.
 #define register