如何在这些批处理循环中设置变量? [英] How to set a variable in these batch loops?

问题描述

认为我在这里让事情感到困惑.

think I'm getting things confused here.

我有一个循环运行一个文件夹中的所有文件

I've got a loop that runs all files in a folder

for /f "delims=_" %%J in ('forfiles /p "%%F" /m *.ext /c "cmd /c echo @path"')
    do start "program"  /D "c:\program files\path\to\program" /Wait program -r  %%J

%%J应该代表每个文件，如果我已经设置/正确解释了这个文件.

%%J should represent each file if I've set this up / interpretted this correctly.

我有另一个循环，正在查找这些文件中的每个文件的xml代码，并使用findstr搜索特定的模式，并从像这样的一些标签中解析出名称:

I have another loop that is looking in the xml code for each of these files and searching for a particular pattern using findstr and parsing out the Name from some tags like this:

for /f "tokens=3 delims=<>" %%a in ('findstr /n /i "<Name>ABCDir" "%%J"')
    do (set name=%%a)
echo !name!

现在，我认为这就像在findstr循环中重用%%J一样容易，但是它似乎没有用.当我运行代码时，它告诉我FINDSTR: Cannot open %J然后是ECHO is off

Now I thought it would be as easy as just reusing %%J in the findstr loop but it doesn't seem to be working. When I run the code, it tells me FINDSTR: Cannot open %J and then ECHO is off

我猜我的问题是，在下一个循环中尝试使用%%J太简单快捷了，而且外壳程序没有在循环之间连接点.

I'm guessing my problem is that it was too quick and easy to try using %%J in the next loop and that the shell isn't connecting the dots between loops.

有什么想法可以做到这一点吗?因为我需要findstr循环中的文件名以始终与第一个循环中的文件匹配.

Any ideas how I can do this? Because I need the file name in the findstr loop to always match the file in the first loop.

编辑:文件的外观如下.

c:\path\to\the file name 

输出内容如下:

FINDSTR: Cannot open "c:\path\
FINDSTR: Cannot open to\
FINDSTR: Cannot open the
FINDSTR: Cannot open file
FINDSTR: Cannot open name

因此，这似乎是壳层如何读取%% J变量的一个简单问题.当我之前忘记在文件名两边加上引号，但引号在%% J左右时，就会出现这种情况.我什至尝试过使用双引号，但是如果不能解决问题，我会感到放心.

so it would seem its a simple issue of how the shell is reading the %%J variable. This type of thing has shown up when I've forgotten to put quotes around file names before but the quotations are around %%J. I even tried double quotations but was a little relieved when that didn't fix it.

我更改了

for /f "tokens=3 delims=<>" %%a in ('findstr /n /i "<Name>ABCDir" "%%J"')
    do (set name=%%a)

到

for /f "tokens=3 delims=<>" %%a in ('findstr /n /i "<Name>ABCDir" "%%~nJ"')
    do (set name=%%a)

，现在输出为:FINDSTR: Cannot open the file name.因此，至少现在它完整地读取了文件.至少看起来是这样.

and now the output is: FINDSTR: Cannot open the file name. So now at least its reading the file in full. At least it would seem that way.

推荐答案

for %%J in ( ... ) do  (
    ....
    %%J is visible here, inside the do clause
    ....
) <- here %%J goes out of scope

因此，您可以在第一个循环的do子句中包含第二个循环(第三个:%%F?)for

So, you can include your second (third : %%F?) for loop inside the do clause of the first one

for %%J in ("%%F\*.ext") do (
    start "program"  /D "c:\program files\path\to\program" /Wait program -r  "%%~fJ"
    for /f "tokens=3 delims=<>" %%a in ('findstr /n /i "<Name>ABCDir" "%%J"') do (
        echo %%a
    )
)

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