replace_code

#!usr/bin/evn python
# -*- coding:utf-8 -*-
import os,sys,pyperclip
import  easygui as g
import re
file_name='target_code'
with open(file_name,'r',encoding='utf-8') as rf:
    old_text=rf.read()

replace_code=r'''void test3(void)
{
    int a=10;
    char s[10]={0};
    printf("a=%d,s=%s\n",a,s);
}
'''
bracketsnum=replace_code.count('{')
pat=replace_code.split('\n')[0]
pat=pat.replace('(','\(')
pat=pat.replace(')','\)')
pat=pat.strip('{')
# begin coding regex
repat='{:s}{}{}{}{}'.format(pat,'.*\{.+\}','{','{:d}'.format(bracketsnum),'}')
patt=re.compile(repat,re.M|re.S)
print(patt)
result=re.findall(patt,old_text)