#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct ListOfTable {
  struct SymbolTable* table;
  // struct ListOfTable* prev;
  struct ListOfTable* next;

} ListOfTable;

typedef struct TableNode {
  char* theType;
  char* theName;
  struct TableNode* next;
} TableNode;

typedef struct SymbolTable {
  TableNode* entries;
  struct SymbolTable* Parent_Scope;
  struct ListOfTable* Children_Scope;
  int Line_Number;
  int Column_Number;
} SymbolTable;

SymbolTable* CreateScope(SymbolTable* ParentScope, int Line, int Column);
TableNode* CreateEntry(SymbolTable* table, char* typeOf, char* id);
TableNode* table_lookup(SymbolTable* table, char* x);
TableNode* look_up(SymbolTable* table, char* x);
void print_symbol_table(SymbolTable* table, FILE* file_ptr);

SymbolTable* getAncestor(SymbolTable* table);
SymbolTable* getParent(SymbolTable* st);
ListOfTable* getChildren(SymbolTable* st);
SymbolTable* getFirstChild(ListOfTable* lt);
ListOfTable* getRestOfChildren(ListOfTable* lt);
TableNode* getFirstEntry(SymbolTable* st);
TableNode* getNextEntry(TableNode* tn);
char* getType(TableNode* tn);
char* getName(TableNode* tn);
int getLine(SymbolTable* st);
int getColumn(SymbolTable* st);