RegEx for Folder Names

[BAbdulBaki]

I have an online directory structure consisting, for all intents and purposes, of the following structure (space or hyphens for both sides):

Book 1
Book 1.1
Book 1.2
Book 2
Book 2.1
Book 3
etc.

Locally, our folder structure also contains the name of the book after the numbers, as such:

Book 1 ActualName1
Book 1.1 ActualName1.1
Book 1.2 ActualName1.2
Book 2 ActualName2
Book 2.1 ActualName2.1
Book 3 ActualName3
etc.

Is it possible to use RegEx to intelligently map one to the other so that they don't appear as left-only/right-only?

Thanks,
Bassam

[sdottaka]

Unfortunately, WinMerge has no such facility for mapping filenames.