text: #include "stdafx.h"
  /*
  int main() {
      Lexer lexer;
      SymbolTable symbol_table;
      FILE* f = fopen("var_def_test1.txt", "r");
      lexer.setSource(f);
      Syntax syntax(&lexer, &symbol_table);
      syntax.next_token();
      syntax.next_token();
      syntax.retract_token();
      syntax.retract_token();
      syntax.next_token();
      symbol_table.display();
      getchar();
      return 0;
  }*/