Windows 检查string/foldername是否正好包含X次特定字符

我正在尝试创建一个批处理文件，该批处理文件：

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• 根据@aschipfl的思想，查找包含特定文件（_extern.inf）的所有文件夹。我找到了一种使其工作的方法
  跨块边界传输变量的基础是：

  ---

  将用于计算分隔符数量的代码放入子例程，通过调用它，然后重试；如果将其放入循环中，

  %count%

  将不会更新（除非您启用并写入

  ！count！

  ）…您可以这样做，而不是计算分隔符的数量：

  for/F“tokens=1-4 delims=”（%%~ni）中的%%a）如果“%%c”=”（回显分隔符太少！），否则如果不是“%%d”=”（回显分隔符太多！）

  （假设可以将相邻的分隔符折叠为一个分隔符）…谢谢@aschipfl的建议。我喜欢上一个的简单性。但我很难让它正常工作。我想让它有可能放入预期的分隔符数量。因此我需要选择要查看的标记（除非我缺少一些技巧）。我试图计算令牌数，但似乎无法将其传递给下一个for循环。您可以通过变量设置

  令牌

  选项（就像对

  delims

  所做的那样），但请确保对该变量（或子例程的参数，如

  %%~1

  ）使用立即（

  %）展开…所以
  tokens=1，%start\u char%，%end\u char%
  ？但是如果我这样做的话，它们是空的…我想我错过了一些技巧…对！除了一般的混乱之外没有其他原因。我删除了它并制作了一些更好的调试打印。你可以留下一个简单的
  setlocal
  （没有参数）只是为了批量文件不留下任何环境变化…谢谢。我已经添加了。
  @echo off
  REM No trailing spaces!
  set "infolder=input_path"
  set "outfolder=output_path"
  set "delim=_"
  set "expect_delims=2"
  
  
  REM Resursively look for folders with _extern.inf files
  for /d /r "%infolder%" %%i in (*) do  @if exist %%i\_extern.inf (
  
      REM echo the folder is %%i
  
  
      REM tokens decide which part to take of the split string.
      REM "tokens=1,3" would take first and third and make %%b available
  
      for /F "tokens=1 delims=%delim%" %%a in ("%%~ni") do (
  
          REM Create project folder if doesn't exist
          if not exist "%outfolder%\%%a.raw\Data\" (
              echo creating folder %outfolder%\%%a.raw\Data
              mkdir "%outfolder%\%%a.raw\Data"
          )
  
          REM move folder if doesn't exist
          if exist "%outfolder%\%%a.raw\Data\%%~nxi" echo raw folder already exists!
  
          if not exist "%outfolder%\%%a.raw\Data\%%~nxi" (
              echo Moving "%%~fi" to "%outfolder%\%%a.raw\Data\%%~nxi"
              move "%%~fi" "%outfolder%\%%a.raw\Data\%%~nxi"
          )
      )
  
  )
  
  @echo off
  
  REM ****** SETTINGS ******
  REM No trailing spaces!
  set "infolder=input_dir"
  set "outfolder=output_dir"
  set "delim=_"
  set "expect_delims=4"
  
  
  REM SCRIPT STARTS HERE
  setlocal
  set /a "token_start=%expect_delims%+1"
  set /a "token_end=%expect_delims%+2"
  
  
  REM Resursively look for folders with _extern.inf files
  for /d /r "%infolder%" %%i in (*) do  @if exist %%i\_extern.inf (
  
      echo ****** Start processing ******
      echo File: "%%~i"
  
  
      for /F "tokens=1,%token_start%,%token_end% delims=%delim%" %%a in ("%%~ni") do (
          REM echo the raw folder is %%i
          if "%%b" == "" (echo Filename check: Too few delimiters. File ignored.) else (
              if not "%%c" == "" (echo Filename check: Too many delimiters. File ignored.) else (
  
                  echo Filename check: OK
  
                  REM Create project folder if doesn't exist
                  if not exist "%outfolder%\%%a.raw\Data" (
                      echo creating folder "%outfolder%\%%a.raw\Data"
                      mkdir "%outfolder%\%%a.raw\Data"
                  )
  
                  REM move raw folder if doesn't exist
                  if exist "%outfolder%\%%a.raw\Data\%%~nxi" echo raw folder already exists! File ignored.
  
                  if not exist "%outfolder%\%%a.raw\Data\%%~nxi\" (
                      echo Moving "%%~fi" to "%outfolder%\%%a.raw\Data\%%~nxi"
                      move  "%%~fi" "%outfolder%\%%a.raw\Data\%%~nxi"
                  )
  
              )    
          )
  
          echo ****** End processing ******
          echo.
      )
  
  
  
  )