Somehow I completely missed that split can do match groups..
Oopsie!
I did it in Python today but I did make a completely functional (and way too complicated) algorithm.
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The way you handle the do and dont is much cleaner
@F04118F if i had known about match i probably would have gotten stuck also lol but luckily i used split once before and remembered it :) i made an issue in your github, hope thats ok, just to mention this in case you didnt see it on fedi!