How can I get a string that is next to another string? [duplicate]

Question

I am creating a batch program, and you need to pass arguments to it. Though with my current code you have to pass the arguments in a certain way. The way I could fix this is by getting a line of text next to the argument. This is what I want :

batch.bat -arg2 arg -arg1 arg
                 ^         ^
                 |         |
              Need This Need This

Answer 1

here is a skeleton to use. If you don't trust your users, you will have to add some precautions (like checking if arguments come in pairs or if the first argument of a pair starts with a - and the second doesn't)

@Echo Off
setlocal
:loop
if "%~2" == "" goto :continue
set "%~1=%~2"
shift
shift
goto :loop
:continue
REM check the parameters:
set - 2>nul

Try with

batch.bat -arg2 world -arg1 hello

Alternative syntax (without changing the code):

batch.bat -arg2=world -arg1=hello

(maybe better understandable by users)