英文:
How to escape / pass the % character to the Sub
问题
I have this batch file, where I am trying to extract a substring but in the end result the % character is being removed. Eg some%value becomes somevalue. I have escaped the & character but nothing works for the percent character.
setlocal enabledelayedexpansion
For /F "Delims=" %%A In ('FindStr /I "<start>.*</end>" "AllApiLogs.log"') Do (
Call :Sub "%%A"
)
GoTo :EOF
:Sub
Set "Line=%~1"
Set "Line=!Line:&amp;=^&!"
Set "Up2Sub=!Line:*<start>=!"
Set "SubStr=!Up2Sub:</end>=&:&!"
Echo '!SubStr!', >> ApiRegExExtract.log
Exit /B
How do I work around this?
Is there a way to escape all characters that need escaping in batch files? I am new to these.
英文:
I have this batch file, where I am trying to extract a substring but in the end result the % character is being removed. Eg some%value becomes somevalue. I have escaped the &amp; character but nothing works for the percent character.
setlocal enabledelayedexpansion
For /F "Delims=" %%A In ('FindStr /I "<start>.*</end>" "AllApiLogs.log"') Do (
Call :Sub "%%A"
)
GoTo :EOF
:Sub
Set "Line=%~1"
Set "Line=%Line:&amp;=^&%"
Set "Up2Sub=%Line:*<start>=%"
Set "SubStr=%Up2Sub:</end>="&:"%"
Echo '%SubStr%', >> ApiRegExExtract.log
Exit /B
How do I work around this?
Is there a way to escape all characters that need escaping in batch files? I am new to these.
答案1
得分: 1
你可以使用插入符号（caret）来转义百分号（%）。
通过将百分号（%）重复两次来转义它，因此要表示百分号（%），请使用%%来转义此字符。
英文:
You can not escape a % with a caret.
You can escape a % by doubling it, so for % use a % to escape this character.
答案2
得分: 1
在你的情况下，通过使用Call :Sub "%%A"，你会失去百分号。
只需更改为：
For /F "Delims=" %%A In ('FindStr /I "<start>.*</end>" "AllApiLogs.log"') Do (
set "line=%%A"
Call :Sub
)
GoTo :EOF
:Sub
Set "Line=%Line:&=^&%..."
这是CALL命令的效果，它解析参数两次。
英文:
In your case, you lose the percent sign by using Call :Sub "%%A".
Just change that to:
For /F "Delims=" %%A In ('FindStr /I "<start>.*</end>" "AllApiLogs.log"') Do (
set "line=%%A"
Call :Sub
)
GoTo :EOF
:Sub
Set "Line=%Line:&amp;=^&%"
...
It's an effect of the CALL command, it parses the arguments two times
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