even if i have some background in regular expressions
it's in some cases not clear to me what happens and why
some directories are added and others not.
What i miss is a kind of simulation mode where i can
see which directories or files will be added. Its very
hard if you have to wait for the result after a small
change in the config file. Also it's very hard to check
the database file whether a directory was added or not.
With this simulation mode you may check immediately
whether your appliied rules deliver the result you