Regex Rename ignore extension?

[redwood]

Can regex ignore extension while renaming?
Some programs have this option to ignore file extension

[void]

I will consider an option to ignore extensions.
Thank you for the suggestion.

For now, please setup your old format to match the extension and then include the extension in your new format.

For example:

Old format: ^(.*?)\.([^.]*)$
New format: \1.\2

[redwood]

would be a useful option for those who do not know much about regex
thank you!