前言

描述

上次写了根据markdown自动取回放在图床的图片，这次则是对markdown文件进行操作，替换特定字符串

如果你需要：

更改相对地址为绝对地址，例如
1
/1.jpg to http://yourblog.domain/1.jpg
写拖拽图片生成的路径更改为服务器上图片的路径，例如
1
C:\Users\Hasee\Desktop\1.jpg to http://yourblog.domain/picture/1.jpg
这篇文章可能对你有帮助

开始

程序

Python3程序

'''
Author: LX
Blog: blog.lxscloud.top
'''

import os

mddir = './md/' #设置输入路径
outmddir = './output-md/' #设置输出路径
markdown_setup = ["![", "](", ")"]#仅图片markdown格式会被处理
markdown_setup_blacklist = ["![\"", "\"](", "](\""]#用于排除混淆，防止一些错误
download_list = ["https://", "http://", "\\"]#仅http、https和\会被处理
ext_name = ["md"]#扩展名白名单，只处理扩展名为.md的文件

'''
#例子：
replace_source = ['\\']
replace_target = ['/']
'''
#要被替换的字符，请加""或''
replace_source = ['\\']
#要被替换的目标字符
#（replace_source里面的字符将会替换成replace_target里你写的字符）
#要求数据类型为字符串，请加""或''
#两个列表需对齐
replace_target = ['/']

#函数：检查目录是否存在，不存在则新建
def checkdir_andcreate(dir_path_set):
  if dir_path_set[-1:] == "":
    dir_path_set = dir_path_set[0:-1]
  if os.path.isdir(dir_path_set) == False:
    try:
      os.mkdir(dir_path_set)
    except:
      print("Dir create fail")
      exit()
    print("Now create a new dir, path:", dir_path_set)
    
#函数：特点字符查找
def check_mark(str_line, list_check, mode_check):
  resault_check = False
  for i in list_check:
    if mode_check == True:#模式True：列表中的所有字符都要有，一个都不能少
      resault_check = True
      try:
        str_line.index(i)
      except:
        resault_check = False
        break
    elif mode_check == False:#模式False：只要匹配到列表中字符的其中一个就行
      resault_check = False
      state = 0
      try:
        str_line.index(i)
        state = 1
      except:
        state = 0
      if state == 1:
        resault_check = True
        break
    else:
      resault_check = False
      print("Function input error")
      break
  return resault_check

def read_and_find(file_name):
  if True:
    try:
     with open(outmddir + file_name[file_name.rfind("/"):], 'w', encoding = 'utf-8') as fout:#在输出目录新建同名文件
      file_processing = open(file_name, 'r+', encoding = 'utf-8') #读取原文件
      for line in file_processing.readlines():#分行处理
        lines = str(line)
        
        if check_mark(lines, markdown_setup, True) == True and check_mark(lines, markdown_setup_blacklist, False) == False:#检测是否为markdown语法的图片链接,并且无黑名单列表中的字符
          http_l = lines.index("](") + 2
          http_r = lines.index(")", http_l)
          pic_http_addr = lines[http_l:http_r]
          
          if check_mark(pic_http_addr, download_list, False):#检测网址是否有效
            print("String replace:", pic_http_addr ,end='')
            
            if len(replace_source) == len(replace_target):
              for iii,data_r in enumerate(replace_target):
                lines = lines.replace(replace_source[iii], data_r)#处理字符
              
              print(" to ", lines)
            else:
              print("****************************")
              print("Error, check (replace_source) and (replace_target)")
              print("****************************")

        fout.write(lines)#写入文本

      file_processing.close()
      return True
    except:  
      print("Err at read file :", file_name)
      return False


checkdir_andcreate(mddir)
checkdir_andcreate(outmddir)
dict_pic_path = []
list = os.listdir(mddir) #列出文件夹下所有的目录与文件
for i in range(0,len(list)):
       path = os.path.join(mddir,list[i])
       if os.path.isfile(path):
         str_path = str(path)
         str_path = str_path[str_path.rfind(".")+1:]
         for i in ext_name: #忽略不在白名单的扩展名
          if str_path == i:
           #print(path)
           dict_pic_path.append(path)
           break

for i in dict_pic_path:#挨个处理文件
  print("File:", i)
  print("-----------------------------------")
  read_and_find(i)
  print("-----------------------------------\n")