I missed you had implemented it so I did it on my side too, sorry.

Comparing your implem and mine: #150 looks like I'm detecting !~ and ~!, do you think it's an interesting feature to keep?

@JulienPalard ~! doesn't work as expected either, so it makes sense to detect it as well.

I'd gladly merge your PR if you'd like your first PR here to be merged, if you're short in time I'll merge mine, just tell me.

@JulienPalard Thanks. If it's fine, I’d be happy to have my first PR merged here.

Then you can tweak it to spot ~! and !~, don't hesitate to steal my regex (in #150).

@JulienPalard Just updated. It now detects both ~! and !~.

Thanks! :)