code: def p_expr_string(p):
      "string : STRING"
      p[0] = node.string(p[1], lineno=p.lineno(1), lexpos=p.lexpos(1)f p_expr_string(p):
      "string : STRING"
      p[0] = node.string(p[1], lineno=p.lineno(1), lexpos=p.lexpos(1))
docs: string : STRING