[Filters] - Excluding issues

[d3cim]

I'm using generate-domains-blocklist.py to merge some lists and I found an issue using domains-allowlist.txt file.

We have a legit domain, in this case example.com. and there are few bad subdomains, like ad.example.com, malware.example.com, tracker.example.com and so on ... all of them blocked by a source merged during the process.

Now I add a new source that accidentaly block example.com, well, I add example.com to domains-allowlist.txt file and I run the script.

Result:

The list doesn't contain example.com, ad.example.com, malware.example.com, tracker.example.com, ...

Expected result:

The list should contain ad.example.com, malware.example.com, tracker.example.com, ... but not example.com

Not a solution:

I can use allowed-names.txt and add =example.com in there. So we start to generate duplicates rules: example.com for the block and =example.com for the unlock.
But the important thing is that the script remove the subdomains because example.com in contained in one of the source merged and then example.com is removed because is contained in domains-allowlist.txt file and I lose the possibility to block all of them.

Solution:

Implement = support in domains-allowlist.txt file and during the process exclude example.com domain only without excluding ad.example.com, malware.example.com, tracker.example.com, ... anymore.

[d3cim]

Hey @jedisct1, what do you think of this? Is it something that can be improved?