More regex flavours for Find_in_files and the like

[Bobottos]

I recall the current one has Perl?
It has limits, so I would like other regex flavour there too.
For example Javascript regex:

1. Allows quantifiers in lookbehind
2. OR operator in lookbehind

Other regex flavours are fine too, i just want to choose my favorite and be able to change it from the app settings

[Bobottos]

It would be very comfortable

[kingkeith]

I’m not sure why this warranted a new topic when you already started a discussion in UI regex: allow the OR operation for look-behind regex