Comparing a Folder to itself with Custom File Alignment

[mjuras]

I have a folder (e.g. C:\test) with files names like this:

abc.sav
abc.bnd
def.sav
def.bnd

I want to compare abc.sav files to abc.bnd and def.sav to def.bnd.

I setup a folder comparison with the C:\test on both the left and right side.

I set a custom alignment rule

Regex
Left = (.*)\.sav
Right = $1.bnd

However it is not aligning the .sav to the .bnd.

Please advise.

Thanks

[Michael Bulgrien]

Why use a regular expression?
Simply align *.sav with *.bnd

[mdes]

You should use a non-greedy regular expression: (but I think it is a bug in the RE processing: in this case, there is no reason to use non-greedy RE)

Left = (.*?)\.sav
Right = $1.bnd

But use Michael's solution which is more simple