Split cbz format volumes into individual chapters for easier progress tracking in manga reading apps.
Requires python, uses only standard library so no extra packages required.
manga_split -i <path> -c
-i <path> relative path to directory containing volume cbz files
-c include to compress chapters to cbz files after processing
-r <regex pattern> custom regex for different naming conventions. Regex should match chapter number to first group (try "(\d{3})" if it fails on the default)