#include "globals.h"
#include "util.h"
#include "scan.h"
#include "parse.h"
static TokenType token; //当前获取的token
static TreeNode* stmt_sequence();
static TreeNode* stmt();
static TreeNode* if_stmt();
static TreeNode* repeat_stmt();
static TreeNode* assign_stmt();
static TreeNode* read_stmt();
static TreeNode* write_stmt();
static TreeNode* exp();
static TreeNode* simple_exp();
static TreeNode* term();
static TreeNode* factor();
static void syntaxError(char* message)
{
}
static void match(TokenType expected)
{
}
static TreeNode* stmt_sequence()
{