Posted by 911940043113 on June 23, 2011 at 12:44:21:
I can't seem to get this substring extraction to work right. In a normal extraction you can use a variable for the number you're extracting from:
set variable=12345
set X=%variable:~3,-1%
Where 4 would be the desired number extracted. I run into my problem when trying to repace "3" and "1" with variables:
set variable=12345
set y=3
set z=1
set X=%variable:~%y%,-%z%%
I can get them all to display their respective values by playing with parentheses, but the expression is never able to set X=4 as desired.
My question is: How do you set proper variables within a variable substring extraction.