diff --git a/version0.3/nasal_token.cpp b/version0.3/nasal_token.cpp
deleted file mode 100644
index cfbc55e..0000000
--- a/version0.3/nasal_token.cpp
+++ /dev/null
@@ -1,108 +0,0 @@
-#ifndef __NASAL_TOKEN_CPP__
-#define __NASAL_TOKEN_CPP__
-
-#include "nasal_token.h"
-#include "nasal_var_stack.h"
-#include "nasal_func_stack.h"
-
-token_list::token_list()
-{
-	list_range=0;
-	head=new token_unit;
-	head->type=FUNC_BEGIN;
-	head->content="__process_begin";
-	head->line=0;
-	head->next=NULL;
-}
-token_list::~token_list()
-{
-	token_unit *temp=head;
-	token_unit *this_node=NULL;
-	while(temp->next)
-	{
-		this_node=temp;
-		temp=temp->next;
-		delete this_node;
-	}
-	delete temp;
-}
-token_unit* token_list::get_head()
-{
-	return head;
-}
-int token_list::get_list_range()
-{
-	return list_range;
-}
-void token_list::print_line_token(const int _line)
-{
-	std::cout<<"line "<<_line<<": ";
-	token_unit *temp=head;
-	while(temp->next)
-	{
-		temp=temp->next;
-		if(temp->line==_line)
-			std::cout<<temp->content<<" ";
-		else if(temp->line>_line)
-			break;
-	}
-	std::cout<<std::endl;
-	return;
-}
-void token_list::delete_all()
-{
-	if(!head->next)
-		return;
-	token_unit *temp=head;
-	token_unit *this_node=NULL;
-	temp=temp->next;
-	head->next=NULL;
-	while(temp->next)
-	{
-		this_node=temp;
-		temp=temp->next;
-		delete this_node;
-	}
-	delete temp;
-	return;
-}
-void token_list::append(const int _line,const int _type,std::string &_content)
-{
-	token_unit *temp=head;
-	while(temp->next)
-		temp=temp->next;
-	++list_range;
-	temp->next=new token_unit;
-	temp=temp->next;
-	temp->next=NULL;
-	temp->type=_type;
-	temp->line=_line;
-	temp->content=_content;
-	return;
-}
-void token_list::print()
-{
-	token_unit *temp=head;
-	std::cout<<"line "<<temp->line<<": "<<"( ProcessBegin | "<<temp->content<<" )"<<std::endl;
-	if(!head->next)
-		return;
-	while(temp->next)
-	{
-		temp=temp->next;
-		std::cout<<"line "<<temp->line<<": ";
-		if(temp->type==OPERATOR)
-			std::cout<<"( Operator     | ";
-		else if(temp->type==IDENTIFIER)
-			std::cout<<"( Identifier   | ";
-		else if(temp->type==NUMBER)
-			std::cout<<"( Number       | ";
-		else if(temp->type==RESERVEWORD)
-			std::cout<<"( ReserveWord  | ";
-		else if(temp->type==STRING)
-			std::cout<<"( String       | ";
-		std::cout<<temp->content<<" )"<<std::endl;
-	}
-	return;
-}
-
-#endif