windows - 如何处理 Windows 批处理文件中带引号的变量值

Question

我对 Windows 批处理文件中的字符串引号有一些疑问。我尝试解析一个 csv 文件(分隔)和多行条目。我必须只写出第四个 sperator 之后的字符串作为文本文件。结果必须包括新行和引号。

输入:

"1","50","1","Warning! Q1: Value too high [W-0001]"
"2","49","1","Warning! Q1: Value too low [W-0002]"
"3","48","1","Warning! Q1: Value changing too fast.
Check for endless loop[W-0003]"

输出:

 "Warning! Q1: Value too high [W-0001]"
 "Warning! Q1: Value too low [W-0002]" 
 "Warning! Q1: Value changing too fast.
 Check for endless loop[W-0003]"

这对于没有换行符的字符串来说效果很好。

for /F "tokens=1-4 skip=4 delims=," %%a in (input.csv) do @echo %%d >> output.txt

我试过了但是语法错误

for /F "delims=, tokens=1-4" %%a in (input.csv) do call :loopbody %%a %%b %%c %%d
goto :eof

if [%4]==[] goto :test
echo %4
goto :eof

:test
echo %1

错误是因为字符串开头的引号

Syntaxfehler.
C:\>if ["Warning Value changing too fast.]==[] goto :test

如何处理带引号的变量值？

Answer 1

这适用于您的数据:

@echo off
for /F "delims=, tokens=1-3,*" %%a in (input.csv) do (
set "aa="
set "aa=%%d"
   if not defined aa (
        >>file.out echo %%a
     ) else (
        >>file.out echo %%d
   )
)