diff --git a/lab.cpp b/lab.cpp
index 698c5cb..d4ab5d9 100644
--- a/lab.cpp
+++ b/lab.cpp
@@ -1,6 +1,7 @@
 #include <iostream>
 #include "var.h"
 using namespace nasal;
+using namespace std;
 
 int main()
 {
@@ -33,11 +34,44 @@ int main()
 	n.PrintList();
 	std::cout<<std::endl;
 	
-	//n.Append(&n,"array","n");//cause infinite loop
 	n.Append(&n,"array");
 	n.Append(&n,"array");
 	n.PrintList();
 	std::cout<<std::endl;
 	
+	NasalList rm;
+	rm.Append(&a,"int");
+	rm.Append(&a,"int");
+	rm.Append(&a,"int");
+	rm.PrintList();
+	std::cout<<std::endl;
+	m.Append("fifth",&rm,"array");
+	m.Append("sixth",&m,"hash");
+	m.PrintHash();
+	std::cout<<std::endl;
+	
+	NasalHash test1(m);
+	test1.PrintHash();
+	NasalList test2(n);
+	std::cout<<std::endl;
+	test2.PrintList();
+	std::cout<<std::endl;
+	
+	n.Append(&m,"hash");
+	n.PrintList();
+	std::cout<<std::endl<<std::endl;
+	
+	NasalList qt;
+	qt.Append(&a,"int");
+	a++;
+	qt.Append(&a,"int");
+	NasalHash qthash;
+	qthash.Append("testlist",&qt,"array");
+	qthash.PrintHash();
+	std::cout<<std::endl;
+	qthash.Append("int",&a,"int");
+	qt.Append(&qthash,"hash");
+	qt.PrintList();
+	
 	return 0;
 }
diff --git a/nasal_hash.cpp b/nasal_hash.cpp
new file mode 100644
index 0000000..7899f97
--- /dev/null
+++ b/nasal_hash.cpp
@@ -0,0 +1,398 @@
+#ifndef __NASAL_HASH_CPP__
+#define __NASAL_HASH_CPP__
+
+#include "nasal_hash.h"
+#include "nasal_list.h"
+namespace nasal
+{
+
+NasalHash::NasalHash()
+{
+	head=new HashUnit;
+	head->data=NULL;
+	head->next=NULL;
+}
+NasalHash::NasalHash(NasalHash &Source)
+{
+	HashUnit *temp;
+	HashUnit *SourceTemp=Source.head;
+	
+	head=new HashUnit;
+	head->next=NULL;
+	head->data=NULL;
+	
+	temp=head;
+	while(SourceTemp->next)
+	{
+		SourceTemp=SourceTemp->next;
+		temp->next=new HashUnit;
+		temp=temp->next;
+		temp->Type=SourceTemp->Type;
+		temp->VarName=SourceTemp->VarName;
+		if(temp->Type=="int")
+		{
+			temp->data=new int;
+			*((int *)temp->data)=*((int *)SourceTemp->data);
+		}
+		if(temp->Type=="float")
+		{
+			temp->data=new float;
+			*((float *)temp->data)=*((float *)SourceTemp->data);
+		}
+		if(temp->Type=="double")
+		{
+			temp->data=new double;
+			*((double *)temp->data)=*((double *)SourceTemp->data);
+		}
+		if(temp->Type=="char")
+		{
+			temp->data=new char;
+			*((char *)temp->data)=*((char *)SourceTemp->data);
+		}
+		if(temp->Type=="long long int")
+		{
+			temp->data=new long long int;
+			*((long long int *)temp->data)=*((long long int *)SourceTemp->data);
+		}
+		if(temp->Type=="string")
+		{
+			temp->data=new std::string;
+			*((std::string *)temp->data)=*((std::string *)SourceTemp->data);
+		}
+		if(temp->Type=="array")
+		{
+			temp->data=new NasalList;
+			*((NasalList *)temp->data)=*((NasalList *)SourceTemp->data);
+		}
+		if(temp->Type=="hash")
+		{
+			temp->data=new NasalHash;
+			*((NasalHash *)temp->data)=*((NasalHash *)SourceTemp->data);
+		}
+		temp->next=NULL;
+	}
+}
+NasalHash::~NasalHash()
+{
+	HashUnit *temp=head;
+	while(temp->next)
+	{
+		head=temp->next;
+		if(temp->data)
+		{
+			if(temp->Type=="int")
+				delete (int *)temp->data;
+			if(temp->Type=="float")
+				delete (float *)temp->data;
+			if(temp->Type=="double")
+				delete (double *)temp->data;
+			if(temp->Type=="char")
+				delete (char *)temp->data;
+			if(temp->Type=="long long int")
+				delete (long long int *)temp->data;
+			if(temp->Type=="string")
+				delete (std::string *)temp->data;
+			if(temp->Type=="array")
+				delete (NasalList *)temp->data;
+			if(temp->Type=="hash")
+				delete (NasalHash *)temp->data;
+		}
+		delete temp;
+		temp=head;
+	}
+	if(temp->data)
+	{
+		if(temp->Type=="int")
+			delete (int *)temp->data;
+		if(temp->Type=="float")
+			delete (float *)temp->data;
+		if(temp->Type=="double")
+			delete (double *)temp->data;
+		if(temp->Type=="char")
+			delete (char *)temp->data;
+		if(temp->Type=="long long int")
+			delete (long long int *)temp->data;
+		if(temp->Type=="string")
+			delete (std::string *)temp->data;
+		if(temp->Type=="array")
+			delete (NasalList *)temp->data;
+		if(temp->Type=="hash")
+			delete (NasalHash *)temp->data;
+	}
+	delete temp;
+}
+void NasalHash::PrintHash()
+{
+	HashUnit *temp=head;
+	std::cout<<"{ ";
+	while(temp->next)
+	{
+		temp=temp->next;
+		std::cout<<temp->VarName<<":";
+		if(temp->next)
+		{
+			if(temp->Type=="int")
+				std::cout<<*((int *)temp->data)<<", ";
+			if(temp->Type=="float")
+				std::cout<<*((float *)temp->data)<<", ";
+			if(temp->Type=="double")
+				std::cout<<*((double *)temp->data)<<", ";
+			if(temp->Type=="char")
+				std::cout<<"\""<<*((char *)temp->data)<<"\", ";
+			if(temp->Type=="long long int")
+				std::cout<<*((long long int *)temp->data)<<", ";
+			if(temp->Type=="string")
+				std::cout<<"\""<<*((std::string *)temp->data)<<"\", ";
+			if(temp->Type=="array")
+			{
+				((NasalList *)temp->data)->PrintList();
+				std::cout<<", ";
+			}
+			if(temp->Type=="hash")
+			{
+				((NasalHash *)temp->data)->PrintHash();
+				std::cout<<", ";
+			}
+		}
+		else
+		{
+			if(temp->Type=="int")
+				std::cout<<*((int *)temp->data);
+			if(temp->Type=="float")
+				std::cout<<*((float *)temp->data);
+			if(temp->Type=="double")
+				std::cout<<*((double *)temp->data);
+			if(temp->Type=="char")
+				std::cout<<"\""<<*((char *)temp->data)<<"\"";
+			if(temp->Type=="long long int")
+				std::cout<<*((long long int *)temp->data);
+			if(temp->Type=="string")
+				std::cout<<"\""<<*((std::string *)temp->data)<<"\"";
+			if(temp->Type=="array")
+				((NasalList *)temp->data)->PrintList();
+			if(temp->Type=="hash")
+				((NasalHash *)temp->data)->PrintHash();
+		}
+	}
+	std::cout<<"}";
+}
+void NasalHash::Append(const char *VariaName,void *AppendData,const char *TypeName)
+{
+	NasalHash TempHash;//sometimes user may use n.append(n)
+	if(TypeName=="hash")
+		TempHash=*((NasalHash *)AppendData);
+	HashUnit *temp=head;
+	while(temp->next)
+	{
+		temp=temp->next;
+	}
+	HashUnit *NewHashMember=new HashUnit;
+	NewHashMember->data=NULL;
+	temp->next=NewHashMember;
+	NewHashMember->VarName=VariaName;
+	NewHashMember->Type=TypeName;
+	if(TypeName=="int")
+	{
+		NewHashMember->data=new int;
+		*((int *)NewHashMember->data)=*((int *)AppendData);
+	}
+	else if(TypeName=="float")
+	{
+		NewHashMember->data=new float;
+		*((float *)NewHashMember->data)=*((float *)AppendData);
+	}
+	else if(TypeName=="double")
+	{
+		NewHashMember->data=new double;
+		*((double *)NewHashMember->data)=*((double *)AppendData);
+	}
+	else if(TypeName=="char")
+	{
+		NewHashMember->data=new char;
+		*((char *)NewHashMember->data)=*((char *)AppendData);
+	}
+	else if(TypeName=="long long int")
+	{
+		NewHashMember->data=new long long int;
+		*((long long int *)NewHashMember->data)=*((long long int *)AppendData);
+	}
+	else if(TypeName=="string")
+	{
+		NewHashMember->data=new std::string;
+		*((std::string *)NewHashMember->data)=*((std::string *)AppendData);
+	}
+	else if(TypeName=="array")
+	{
+		NewHashMember->data=new NasalList;
+		*((NasalList *)NewHashMember->data)=*((NasalList *)AppendData);
+	}
+	else if(TypeName=="hash")
+	{
+		NewHashMember->data=new NasalHash;
+		*((NasalHash *)NewHashMember->data)=TempHash;
+	}
+	NewHashMember->next=NULL;
+}
+int NasalHash::Contains(const char *VariaName)
+{
+	HashUnit *temp=head;
+	while(temp->next)
+	{
+		temp=temp->next;
+		if(temp->VarName==VariaName)
+			return 1;
+	}
+	return 0;
+}
+NasalList NasalHash::Keys()
+{
+	NasalList FeedBackList;
+	HashUnit *temp=head;
+	while(temp->next)
+	{
+		temp=temp->next;
+		FeedBackList.Append(&(temp->VarName),"string");
+	}
+	return FeedBackList;
+}
+void NasalHash::Delete(const char *VariaName)
+{
+	HashUnit *temp=head;
+	HashUnit *LastNode;
+	while(temp->next)
+	{
+		LastNode=temp;
+		temp=temp->next;
+		if(temp->VarName==VariaName)
+		{
+			LastNode->next=temp->next;
+			if(temp->Type=="int")
+				delete (int *)temp->data;
+			if(temp->Type=="float")
+				delete (float *)temp->data;
+			if(temp->Type=="double")
+				delete (double *)temp->data;
+			if(temp->Type=="char")
+				delete (char *)temp->data;
+			if(temp->Type=="long long int")
+				delete (long long int *)temp->data;
+			if(temp->Type=="string")
+				delete (std::string *)temp->data;
+			if(temp->Type=="array")
+				delete (NasalList *)temp->data;
+			if(temp->Type=="hash")
+				delete (NasalHash *)temp->data;
+			delete temp;
+			return;
+		}
+	}
+	std::cout<<"[Error]: Could not find this element \""<<VariaName<<"\"."<<std::endl;
+	return;
+}
+NasalHash& NasalHash::operator=(const NasalHash &Source)
+{
+	HashUnit *temp=head;
+	HashUnit *SourceTemp=Source.head;
+	while(temp->next)
+	{
+		head=temp->next;
+		if(temp->data)
+		{
+			if(temp->Type=="int")
+				delete (int *)temp->data;
+			if(temp->Type=="float")
+				delete (float *)temp->data;
+			if(temp->Type=="double")
+				delete (double *)temp->data;
+			if(temp->Type=="char")
+				delete (char *)temp->data;
+			if(temp->Type=="long long int")
+				delete (long long int *)temp->data;
+			if(temp->Type=="string")
+				delete (std::string *)temp->data;
+			if(temp->Type=="array")
+				delete (NasalList *)temp->data;
+			if(temp->Type=="hash")
+				delete (NasalHash *)temp->data;
+		}
+		delete temp;
+		temp=head;
+	}
+	if(temp->data)
+	{
+		if(temp->Type=="int")
+			delete (int *)temp->data;
+		if(temp->Type=="float")
+			delete (float *)temp->data;
+		if(temp->Type=="double")
+			delete (double *)temp->data;
+		if(temp->Type=="char")
+			delete (char *)temp->data;
+		if(temp->Type=="long long int")
+			delete (long long int *)temp->data;
+		if(temp->Type=="string")
+			delete (std::string *)temp->data;
+		if(temp->Type=="array")
+			delete (NasalList *)temp->data;
+		if(temp->Type=="hash")
+			delete (NasalHash *)temp->data;
+	}
+	delete temp;
+	head=new HashUnit;
+	head->next=NULL;
+	
+	temp=head;
+	while(SourceTemp->next)
+	{
+		SourceTemp=SourceTemp->next;
+		temp->next=new HashUnit;
+		temp=temp->next;
+		temp->Type=SourceTemp->Type;
+		temp->VarName=SourceTemp->VarName;
+		if(temp->Type=="int")
+		{
+			temp->data=new int;
+			*((int *)temp->data)=*((int *)SourceTemp->data);
+		}
+		if(temp->Type=="float")
+		{
+			temp->data=new float;
+			*((float *)temp->data)=*((float *)SourceTemp->data);
+		}
+		if(temp->Type=="double")
+		{
+			temp->data=new double;
+			*((double *)temp->data)=*((double *)SourceTemp->data);
+		}
+		if(temp->Type=="char")
+		{
+			temp->data=new char;
+			*((char *)temp->data)=*((char *)SourceTemp->data);
+		}
+		if(temp->Type=="long long int")
+		{
+			temp->data=new long long int;
+			*((long long int *)temp->data)=*((long long int *)SourceTemp->data);
+		}
+		if(temp->Type=="string")
+		{
+			temp->data=new std::string;
+			*((std::string *)temp->data)=*((std::string *)SourceTemp->data);
+		}
+		if(temp->Type=="array")
+		{
+			temp->data=new NasalList;
+			*((NasalList *)temp->data)=*((NasalList *)SourceTemp->data);
+		}
+		if(temp->Type=="hash")
+		{
+			temp->data=new NasalHash;
+			*((NasalHash *)temp->data)=*((NasalHash *)SourceTemp->data);
+		}
+		temp->next=NULL;
+	}
+	return *this;
+}
+
+}
+#endif
diff --git a/nasal_hash.h b/nasal_hash.h
index d71a9fe..6d9acd1 100644
--- a/nasal_hash.h
+++ b/nasal_hash.h
@@ -8,7 +8,6 @@
 namespace nasal
 {
 
-
 struct HashUnit
 {
 	std::string VarName;
@@ -22,199 +21,15 @@ class NasalHash
 	private:
 		HashUnit *head;
 	public:
-		NasalHash()
-		{
-			head=new HashUnit;
-			head->next=NULL;
-		}
-		~NasalHash()
-		{
-			HashUnit *temp=head;
-			while(temp->next)
-			{
-				head=temp->next;
-				if(temp->data)
-				{
-					if(temp->Type=="int")
-						delete (int *)temp->data;
-					if(temp->Type=="float")
-						delete (float *)temp->data;
-					if(temp->Type=="double")
-						delete (double *)temp->data;
-					if(temp->Type=="char")
-						delete (char *)temp->data;
-					if(temp->Type=="long long int")
-						delete (long long int *)temp->data;
-					if(temp->Type=="string")
-						delete (std::string *)temp->data;
-					if(temp->Type=="array")
-						delete (NasalList *)temp->data;
-					if(temp->Type=="hash")
-						delete (NasalHash *)temp->data;
-				}
-				delete temp;
-				temp=head;
-			}
-			delete temp;
-		}
-		void PrintHash()
-		{
-			HashUnit *temp=head;
-			std::cout<<"{ ";
-			while(temp->next)
-			{
-				temp=temp->next;
-				std::cout<<temp->VarName<<":";
-				if(temp->next)
-				{
-					if(temp->Type=="int")
-						std::cout<<*((int *)temp->data)<<", ";
-					if(temp->Type=="float")
-						std::cout<<*((float *)temp->data)<<", ";
-					if(temp->Type=="double")
-						std::cout<<*((double *)temp->data)<<", ";
-					if(temp->Type=="char")
-						std::cout<<"\""<<*((char *)temp->data)<<"\", ";
-					if(temp->Type=="long long int")
-						std::cout<<*((long long int *)temp->data)<<", ";
-					if(temp->Type=="string")
-						std::cout<<"\""<<*((std::string *)temp->data)<<"\", ";
-					if(temp->Type=="array")
-					{
-						((NasalList *)temp->data)->PrintList();
-						std::cout<<", ";
-					}
-					if(temp->Type=="hash")
-					{
-						((NasalHash *)temp->data)->PrintHash();
-						std::cout<<", ";
-					}
-				}
-				else
-				{
-					if(temp->Type=="int")
-						std::cout<<*((int *)temp->data);
-					if(temp->Type=="float")
-						std::cout<<*((float *)temp->data);
-					if(temp->Type=="double")
-						std::cout<<*((double *)temp->data);
-					if(temp->Type=="char")
-						std::cout<<"\""<<*((char *)temp->data)<<"\"";
-					if(temp->Type=="long long int")
-						std::cout<<*((long long int *)temp->data);
-					if(temp->Type=="string")
-						std::cout<<"\""<<*((std::string *)temp->data)<<"\"";
-					if(temp->Type=="array")
-						((NasalList *)temp->data)->PrintList();
-					if(temp->Type=="hash")
-						((NasalHash *)temp->data)->PrintHash();
-				}
-			}
-			std::cout<<"}";
-		}
-		void Append(const char *VariaName,void *AppendData,const char *TypeName)
-		{
-			HashUnit *temp=head;
-			while(temp->next)
-			{
-				temp=temp->next;
-			}
-			HashUnit *NewHashMember=new HashUnit;
-			temp->next=NewHashMember;
-			NewHashMember->VarName=VariaName;
-			NewHashMember->Type=TypeName;
-			if(TypeName=="int")
-			{
-				NewHashMember->data=new int;
-				*((int *)NewHashMember->data)=*((int *)AppendData);
-			}
-			if(TypeName=="float")
-			{
-				NewHashMember->data=new float;
-				*((float *)NewHashMember->data)=*((float *)AppendData);
-			}
-			if(TypeName=="double")
-			{
-				NewHashMember->data=new double;
-				*((double *)NewHashMember->data)=*((double *)AppendData);
-			}
-			if(TypeName=="char")
-			{
-				NewHashMember->data=new char;
-				*((char *)NewHashMember->data)=*((char *)AppendData);
-			}
-			if(TypeName=="long long int")
-			{
-				NewHashMember->data=new long long int;
-				*((long long int *)NewHashMember->data)=*((long long int *)AppendData);
-			}
-			if(TypeName=="string")
-			{
-				NewHashMember->data=new std::string;
-				*((std::string *)NewHashMember->data)=*((std::string *)AppendData);
-			}
-			if(temp->Type=="array")
-				;
-			if(temp->Type=="hash")
-				;
-			NewHashMember->next=NULL;
-		}
-		int Contains(const char *VariaName)
-		{
-			HashUnit *temp=head;
-			while(temp->next)
-			{
-				temp=temp->next;
-				if(temp->VarName==VariaName)
-					return 1;
-			}
-			return 0;
-		}
-		NasalList Keys()
-		{
-			NasalList FeedBackList;
-			HashUnit *temp=head;
-			while(temp->next)
-			{
-				temp=temp->next;
-				FeedBackList.Append(&(temp->VarName),"string");
-			}
-			return FeedBackList;
-		}
-		void Delete(const char *VariaName)
-		{
-			HashUnit *temp=head;
-			HashUnit *LastNode;
-			while(temp->next)
-			{
-				LastNode=temp;
-				temp=temp->next;
-				if(temp->VarName==VariaName)
-				{
-					LastNode->next=temp->next;
-					if(temp->Type=="int")
-						delete (int *)temp->data;
-					if(temp->Type=="float")
-						delete (float *)temp->data;
-					if(temp->Type=="double")
-						delete (double *)temp->data;
-					if(temp->Type=="char")
-						delete (char *)temp->data;
-					if(temp->Type=="long long int")
-						delete (long long int *)temp->data;
-					if(temp->Type=="string")
-						delete (std::string *)temp->data;
-					if(temp->Type=="array")
-						delete (NasalList *)temp->data;
-					if(temp->Type=="hash")
-						delete (NasalHash *)temp->data;
-					delete temp;
-					return;
-				}
-			}
-			std::cout<<"[Error]: Could not find this element \""<<VariaName<<"\"."<<std::endl;
-			return;
-		}
+		NasalHash();
+		NasalHash(NasalHash&);
+		~NasalHash();
+		void PrintHash();
+		void Append(const char *,void *,const char *);
+		int Contains(const char *);
+		NasalList Keys();
+		void Delete(const char *);
+		NasalHash& operator=(const NasalHash&);
 };
 
 }
diff --git a/nasal_list.cpp b/nasal_list.cpp
new file mode 100644
index 0000000..da6fef1
--- /dev/null
+++ b/nasal_list.cpp
@@ -0,0 +1,341 @@
+#ifndef __NASAL_LIST_CPP__
+#define __NASAL_LIST_CPP__
+
+#include "nasal_list.h"
+#include "nasal_hash.h"
+namespace nasal
+{
+
+NasalList::NasalList()
+{
+	head=new ListUnit;
+	head->data=NULL;
+	head->next=NULL;
+}
+NasalList::NasalList(NasalList &Source)
+{
+	ListUnit *temp;
+	ListUnit *SourceTemp=Source.head;
+	
+	head=new ListUnit;
+	head->next=NULL;
+	
+	temp=head;
+	while(SourceTemp->next)
+	{
+		SourceTemp=SourceTemp->next;
+		temp->next=new ListUnit;
+		temp=temp->next;
+		temp->Type=SourceTemp->Type;
+		if(temp->Type=="int")
+		{
+			temp->data=new int;
+			*((int *)temp->data)=*((int *)SourceTemp->data);
+		}
+		if(temp->Type=="float")
+		{
+			temp->data=new float;
+			*((float *)temp->data)=*((float *)SourceTemp->data);
+		}
+		if(temp->Type=="double")
+		{
+			temp->data=new double;
+			*((double *)temp->data)=*((double *)SourceTemp->data);
+		}
+		if(temp->Type=="char")
+		{
+			temp->data=new char;
+			*((char *)temp->data)=*((char *)SourceTemp->data);
+		}
+		if(temp->Type=="long long int")
+		{
+			temp->data=new long long int;
+			*((long long int *)temp->data)=*((long long int *)SourceTemp->data);
+		}
+		if(temp->Type=="string")
+		{
+			temp->data=new std::string;
+			*((std::string *)temp->data)=*((std::string *)SourceTemp->data);
+		}
+		if(temp->Type=="array")
+		{
+			temp->data=new NasalList;
+			*((NasalList *)temp->data)=*((NasalList *)SourceTemp->data);
+		}
+		if(temp->Type=="hash")
+		{
+			temp->data=new NasalHash;
+			*((NasalHash *)temp->data)=*((NasalHash *)SourceTemp->data);
+		}
+		temp->next=NULL;
+	}
+}
+NasalList::~NasalList()
+{
+	ListUnit *temp=head;
+	while(temp->next)
+	{
+		head=temp->next;
+		if(temp->data)
+		{
+			if(temp->Type=="int")
+				delete (int *)temp->data;
+			if(temp->Type=="float")
+				delete (float *)temp->data;
+			if(temp->Type=="double")
+				delete (double *)temp->data;
+			if(temp->Type=="char")
+				delete (char *)temp->data;
+			if(temp->Type=="long long int")
+				delete (long long int *)temp->data;
+			if(temp->Type=="string")
+				delete (std::string *)temp->data;
+			if(temp->Type=="array")
+				delete (NasalList *)temp->data;
+			if(temp->Type=="hash")
+				delete (NasalHash *)temp->data;
+		}
+		delete temp;
+		temp=head;
+	}
+	if(temp->data)
+	{
+		if(temp->Type=="int")
+			delete (int *)temp->data;
+		if(temp->Type=="float")
+			delete (float *)temp->data;
+		if(temp->Type=="double")
+			delete (double *)temp->data;
+		if(temp->Type=="char")
+			delete (char *)temp->data;
+		if(temp->Type=="long long int")
+			delete (long long int *)temp->data;
+		if(temp->Type=="string")
+			delete (std::string *)temp->data;
+		if(temp->Type=="array")
+			delete (NasalList *)temp->data;
+		if(temp->Type=="hash")
+			delete (NasalHash *)temp->data;
+	}
+	delete temp;
+}
+
+void NasalList::PrintList()
+{
+	ListUnit *temp=head;
+	std::cout<<"[ ";
+	while(temp->next)
+	{
+		temp=temp->next;
+		if(temp->next)
+		{
+			if(temp->Type=="int")
+				std::cout<<*((int *)temp->data)<<", ";
+			if(temp->Type=="float")
+				std::cout<<*((float *)temp->data)<<", ";
+			if(temp->Type=="double")
+				std::cout<<*((double *)temp->data)<<", ";
+			if(temp->Type=="char")
+				std::cout<<"\""<<*((char *)temp->data)<<"\", ";
+			if(temp->Type=="long long int")
+				std::cout<<*((long long int *)temp->data)<<", ";
+			if(temp->Type=="string")
+				std::cout<<"\""<<*((std::string *)temp->data)<<"\", ";
+			if(temp->Type=="array")
+			{
+				((NasalList *)temp->data)->PrintList();
+				std::cout<<", ";
+			}
+			if(temp->Type=="hash")
+			{
+				((NasalHash *)temp->data)->PrintHash();
+				std::cout<<", ";
+			}
+		}
+		else
+		{
+			if(temp->Type=="int")
+				std::cout<<*((int *)temp->data);
+			if(temp->Type=="float")
+				std::cout<<*((float *)temp->data);
+			if(temp->Type=="double")
+				std::cout<<*((double *)temp->data);
+			if(temp->Type=="char")
+				std::cout<<"\""<<*((char *)temp->data)<<"\"";
+			if(temp->Type=="long long int")
+				std::cout<<*((long long int *)temp->data);
+			if(temp->Type=="string")
+				std::cout<<"\""<<*((std::string *)temp->data)<<"\"";
+			if(temp->Type=="array")
+				((NasalList *)temp->data)->PrintList();
+			if(temp->Type=="hash")
+				((NasalHash *)temp->data)->PrintHash();
+		}
+	}
+	std::cout<<"]";
+}
+	
+void NasalList::Append(void *AppendData,const char *TypeName)
+{
+	NasalList TempList;//sometimes user may use n.append(n)
+	if(TypeName=="array")
+		TempList=*((NasalList *)AppendData);
+	ListUnit *temp=head;
+	while(temp->next)
+	{
+		temp=temp->next;
+	}
+	ListUnit *NewListMember=new ListUnit;
+	temp->next=NewListMember;
+	NewListMember->data=NULL;
+	NewListMember->Type=TypeName;
+	if(TypeName=="int")
+	{
+		NewListMember->data=new int;
+		*((int *)NewListMember->data)=*((int *)AppendData);
+	}
+	if(TypeName=="float")
+	{
+		NewListMember->data=new float;
+		*((float *)NewListMember->data)=*((float *)AppendData);
+	}
+	if(TypeName=="double")
+	{
+		NewListMember->data=new double;
+		*((double *)NewListMember->data)=*((double *)AppendData);
+	}
+	if(TypeName=="char")
+	{
+		NewListMember->data=new char;
+		*((char *)NewListMember->data)=*((char *)AppendData);
+	}
+	if(TypeName=="long long int")
+	{
+		NewListMember->data=new long long int;
+		*((long long int *)NewListMember->data)=*((long long int *)AppendData);
+	}
+	if(TypeName=="string")
+	{
+		NewListMember->data=new std::string;
+		*((std::string *)NewListMember->data)=*((std::string *)AppendData);
+	}
+	if(TypeName=="array")
+	{
+		NewListMember->data=new NasalList;
+		*((NasalList *)NewListMember->data)=TempList;
+	}
+	if(TypeName=="hash")
+	{
+		NewListMember->data=new NasalHash;
+		*((NasalHash *)NewListMember->data)=*((NasalHash *)AppendData);
+	}
+	NewListMember->next=NULL;
+}
+
+NasalList& NasalList::operator=(const NasalList &Source)
+{
+	ListUnit *temp=head;
+	ListUnit *SourceTemp=Source.head;
+	while(temp->next)
+	{
+		head=temp->next;
+		if(temp->data)
+		{
+			if(temp->Type=="int")
+				delete (int *)temp->data;
+			if(temp->Type=="float")
+				delete (float *)temp->data;
+			if(temp->Type=="double")
+				delete (double *)temp->data;
+			if(temp->Type=="char")
+				delete (char *)temp->data;
+			if(temp->Type=="long long int")
+				delete (long long int *)temp->data;
+			if(temp->Type=="string")
+				delete (std::string *)temp->data;
+			if(temp->Type=="array")
+				delete (NasalList *)temp->data;
+			if(temp->Type=="hash")
+				delete (NasalHash *)temp->data;
+		}
+		delete temp;
+		temp=head;
+	}
+	if(temp->data)
+	{
+		if(temp->Type=="int")
+			delete (int *)temp->data;
+		if(temp->Type=="float")
+			delete (float *)temp->data;
+		if(temp->Type=="double")
+			delete (double *)temp->data;
+		if(temp->Type=="char")
+			delete (char *)temp->data;
+		if(temp->Type=="long long int")
+			delete (long long int *)temp->data;
+		if(temp->Type=="string")
+			delete (std::string *)temp->data;
+		if(temp->Type=="array")
+			delete (NasalList *)temp->data;
+		if(temp->Type=="hash")
+			delete (NasalHash *)temp->data;
+	}
+	delete temp;
+	head=new ListUnit;
+	head->next=NULL;
+	
+	temp=head;
+	while(SourceTemp->next)
+	{
+		SourceTemp=SourceTemp->next;
+		temp->next=new ListUnit;
+		temp=temp->next;
+		temp->Type=SourceTemp->Type;
+		if(temp->Type=="int")
+		{
+			temp->data=new int;
+			*((int *)temp->data)=*((int *)SourceTemp->data);
+		}
+		if(temp->Type=="float")
+		{
+			temp->data=new float;
+			*((float *)temp->data)=*((float *)SourceTemp->data);
+		}
+		if(temp->Type=="double")
+		{
+			temp->data=new double;
+			*((double *)temp->data)=*((double *)SourceTemp->data);
+		}
+		if(temp->Type=="char")
+		{
+			temp->data=new char;
+			*((char *)temp->data)=*((char *)SourceTemp->data);
+		}
+		if(temp->Type=="long long int")
+		{
+			temp->data=new long long int;
+			*((long long int *)temp->data)=*((long long int *)SourceTemp->data);
+		}
+		if(temp->Type=="string")
+		{
+			temp->data=new std::string;
+			*((std::string *)temp->data)=*((std::string *)SourceTemp->data);
+		}
+		if(temp->Type=="array")
+		{
+			temp->data=new NasalList;
+			*((NasalList *)temp->data)=*((NasalList *)SourceTemp->data);
+		}
+		if(temp->Type=="hash")
+		{
+			temp->data=new NasalHash;
+			*((NasalHash *)temp->data)=*((NasalHash *)SourceTemp->data);
+		}
+		temp->next=NULL;
+	}
+	return *this;
+}
+
+}
+
+#endif
diff --git a/nasal_list.h b/nasal_list.h
index 6c24849..b2c066e 100644
--- a/nasal_list.h
+++ b/nasal_list.h
@@ -3,7 +3,7 @@
 
 #include <iostream>
 #include <cstring>
-#include "nasal_hash.h"
+
 
 namespace nasal
 {
@@ -20,267 +20,12 @@ class NasalList
 	private:
 		ListUnit *head;
 	public:
-		NasalList()
-		{
-			head=new ListUnit;
-			head->data=NULL;
-			head->next=NULL;
-		}
-		~NasalList()
-		{
-			ListUnit *temp=head;
-			while(temp->next)
-			{
-				head=temp->next;
-				if(temp->data)
-				{
-					if(temp->Type=="int")
-						delete (int *)temp->data;
-					if(temp->Type=="float")
-						delete (float *)temp->data;
-					if(temp->Type=="double")
-						delete (double *)temp->data;
-					if(temp->Type=="char")
-						delete (char *)temp->data;
-					if(temp->Type=="long long int")
-						delete (long long int *)temp->data;
-					if(temp->Type=="string")
-						delete (std::string *)temp->data;
-					if(temp->Type=="array")
-						delete (NasalList *)temp->data;
-					if(temp->Type=="hash");
-						//delete (NasalHash *)temp->data;
-				}
-				delete temp;
-				temp=head;
-			}
-			if(temp->data)
-			{
-				if(temp->Type=="int")
-					delete (int *)temp->data;
-				if(temp->Type=="float")
-					delete (float *)temp->data;
-				if(temp->Type=="double")
-					delete (double *)temp->data;
-				if(temp->Type=="char")
-					delete (char *)temp->data;
-				if(temp->Type=="long long int")
-					delete (long long int *)temp->data;
-				if(temp->Type=="string")
-					delete (std::string *)temp->data;
-				if(temp->Type=="array")
-					delete (NasalList *)temp->data;
-				if(temp->Type=="hash")
-					;
-			}
-			delete temp;
-		}
-		void PrintList()
-		{
-			ListUnit *temp=head;
-			std::cout<<"[ ";
-			while(temp->next)
-			{
-				temp=temp->next;
-				if(temp->next)
-				{
-					if(temp->Type=="int")
-						std::cout<<*((int *)temp->data)<<", ";
-					if(temp->Type=="float")
-						std::cout<<*((float *)temp->data)<<", ";
-					if(temp->Type=="double")
-						std::cout<<*((double *)temp->data)<<", ";
-					if(temp->Type=="char")
-						std::cout<<"\""<<*((char *)temp->data)<<"\", ";
-					if(temp->Type=="long long int")
-						std::cout<<*((long long int *)temp->data)<<", ";
-					if(temp->Type=="string")
-						std::cout<<"\""<<*((std::string *)temp->data)<<"\", ";
-					if(temp->Type=="array")
-					{
-						((NasalList *)temp->data)->PrintList();
-						std::cout<<", ";
-					}
-					if(temp->Type=="hash")
-					{
-						;//((NasalHash *)temp->data)->PrintHash();
-						std::cout<<", ";
-					}
-				}
-				else
-				{
-					if(temp->Type=="int")
-						std::cout<<*((int *)temp->data);
-					if(temp->Type=="float")
-						std::cout<<*((float *)temp->data);
-					if(temp->Type=="double")
-						std::cout<<*((double *)temp->data);
-					if(temp->Type=="char")
-						std::cout<<"\""<<*((char *)temp->data)<<"\"";
-					if(temp->Type=="long long int")
-						std::cout<<*((long long int *)temp->data);
-					if(temp->Type=="string")
-						std::cout<<"\""<<*((std::string *)temp->data)<<"\"";
-					if(temp->Type=="array")
-						((NasalList *)temp->data)->PrintList();
-					if(temp->Type=="hash")
-						;//((NasalHash *)temp->data)->PrintHash();
-				}
-			}
-			std::cout<<"]";
-		}
-		void Append(void *AppendData,const char *TypeName)
-		{
-			NasalList TempList;//sometimes user may use n.append(n)
-			if(TypeName=="array")
-				TempList=*((NasalList *)AppendData);
-			ListUnit *temp=head;
-			while(temp->next)
-			{
-				temp=temp->next;
-			}
-			ListUnit *NewListMember=new ListUnit;
-			temp->next=NewListMember;
-			NewListMember->Type=TypeName;
-			if(TypeName=="int")
-			{
-				NewListMember->data=new int;
-				*((int *)NewListMember->data)=*((int *)AppendData);
-			}
-			if(TypeName=="float")
-			{
-				NewListMember->data=new float;
-				*((float *)NewListMember->data)=*((float *)AppendData);
-			}
-			if(TypeName=="double")
-			{
-				NewListMember->data=new double;
-				*((double *)NewListMember->data)=*((double *)AppendData);
-			}
-			if(TypeName=="char")
-			{
-				NewListMember->data=new char;
-				*((char *)NewListMember->data)=*((char *)AppendData);
-			}
-			if(TypeName=="long long int")
-			{
-				NewListMember->data=new long long int;
-				*((long long int *)NewListMember->data)=*((long long int *)AppendData);
-			}
-			if(TypeName=="string")
-			{
-				NewListMember->data=new std::string;
-				*((std::string *)NewListMember->data)=*((std::string *)AppendData);
-			}
-			if(TypeName=="array")
-			{
-				NewListMember->data=new NasalList;
-				*((NasalList *)NewListMember->data)=TempList;
-			}
-			if(TypeName=="hash")
-				;
-			NewListMember->next=NULL;
-		}
-		NasalList& operator=(const NasalList &Source)
-		{
-			ListUnit *temp=head;
-			ListUnit *SourceTemp=Source.head;
-			while(temp->next)
-			{
-				head=temp->next;
-				if(temp->data)
-				{
-					if(temp->Type=="int")
-						delete (int *)temp->data;
-					if(temp->Type=="float")
-						delete (float *)temp->data;
-					if(temp->Type=="double")
-						delete (double *)temp->data;
-					if(temp->Type=="char")
-						delete (char *)temp->data;
-					if(temp->Type=="long long int")
-						delete (long long int *)temp->data;
-					if(temp->Type=="string")
-						delete (std::string *)temp->data;
-					if(temp->Type=="array")
-						delete (NasalList *)temp->data;
-					if(temp->Type=="hash")
-						;
-				}
-				delete temp;
-				temp=head;
-			}
-			if(temp->data)
-			{
-				if(temp->Type=="int")
-					delete (int *)temp->data;
-				if(temp->Type=="float")
-					delete (float *)temp->data;
-				if(temp->Type=="double")
-					delete (double *)temp->data;
-				if(temp->Type=="char")
-					delete (char *)temp->data;
-				if(temp->Type=="long long int")
-					delete (long long int *)temp->data;
-				if(temp->Type=="string")
-					delete (std::string *)temp->data;
-				if(temp->Type=="array")
-					delete (NasalList *)temp->data;
-				if(temp->Type=="hash")
-					;
-			}
-			delete temp;
-			head=new ListUnit;
-			head->next=NULL;
-			
-			temp=head;
-			while(SourceTemp->next)
-			{
-				SourceTemp=SourceTemp->next;
-				temp->next=new ListUnit;
-				temp=temp->next;
-				temp->Type=SourceTemp->Type;
-				if(temp->Type=="int")
-				{
-					temp->data=new int;
-					*((int *)temp->data)=*((int *)SourceTemp->data);
-				}
-				if(temp->Type=="float")
-				{
-					temp->data=new float;
-					*((float *)temp->data)=*((float *)SourceTemp->data);
-				}
-				if(temp->Type=="double")
-				{
-					temp->data=new double;
-					*((double *)temp->data)=*((double *)SourceTemp->data);
-				}
-				if(temp->Type=="char")
-				{
-					temp->data=new char;
-					*((char *)temp->data)=*((char *)SourceTemp->data);
-				}
-				if(temp->Type=="long long int")
-				{
-					temp->data=new long long int;
-					*((long long int *)temp->data)=*((long long int *)SourceTemp->data);
-				}
-				if(temp->Type=="string")
-				{
-					temp->data=new std::string;
-					*((std::string *)temp->data)=*((std::string *)SourceTemp->data);
-				}
-				if(temp->Type=="array")
-				{
-					temp->data=new NasalList;
-					*((NasalList *)temp->data)=*((NasalList *)SourceTemp->data);
-				}
-				if(temp->Type=="hash")
-					;
-				temp->next=NULL;
-			}
-			return *this;
-		}
+		NasalList();
+		NasalList(NasalList &);
+		~NasalList();
+		void PrintList();
+		void Append(void *,const char *);
+		NasalList& operator=(const NasalList &);
 };
 
 }
diff --git a/nasal_print.h b/nasal_print.h
index 4f06401..5086c4a 100644
--- a/nasal_print.h
+++ b/nasal_print.h
@@ -3,8 +3,8 @@
 
 #include<iostream>
 #include<cstring>
-#include "nasal_hash.h"
-#include "nasal_list.h"
+#include "nasal_hash.cpp"
+#include "nasal_list.cpp"
 
 namespace nasal
 {
diff --git a/var.h b/var.h
new file mode 100644
index 0000000..db94d2c
--- /dev/null
+++ b/var.h
@@ -0,0 +1,23 @@
+#ifndef __VAR_H__
+#define __VAR_H__
+
+#include "nasal_hash.cpp"
+#include "nasal_list.cpp"
+#include "nasal_print.h"
+
+// int
+// char
+// long long int
+// double 
+// float
+// string
+// const char *
+// NasalHash
+// NasalList
+
+/*
+NasalList->delete NasalList & NasalHash
+
+NasalHash->delete NasalList & NasalHash
+*/
+#endif