Case sensitive comparison-why doesn't this work?

[Jer]

I can't see why the code below does not give the results I expect,
give one match in a case sensitive comparison. The code represents
an issue in a larger script. I'm probably confused and need expert help
Yes, I read /? IF
Jerry

Code: Select all

@echo Off
setlocal EnableDelayedExpansion
set "string=a"
call :myfun string

set "string=A"
call :myfun string

endlocal & exit /b

:myfun
setlocal EnableDelayedExpansion
set "instring=!%~1!"
If "%instring:a=%"=="%instring%" (echo a not found in %instring%) Else echo found a in %instring%
If "%instring:A=%"=="%instring%" (echo A not found in %instring% ) Else echo found A in %instring%
endlocal & exit /b

found a in a
found A in a
found a in A
found A in A

[Squashman]

String substitution is not case sensitive.

Code: Select all

H:\>set "string=aaaa"

H:\>echo %string:A=A%
AAAA

So in your case it will always remove it.

[Jer]

String substitution is not case sensitive. Squashman, thank you for that lesson.