findAll

[mizlan]

would it be possible to have a findAll method that returns all matches in a string?

[mizlan]

I think this works? (warning: it may not work)
It is meant to be like in other languages' behavior where the matches are non-overlapping.

findAll :: RE s a -> [s] -> [a]
findAll = unfoldr . findFirstPrefix . (few anySym *>)

If you'd like I can write some tests and make a PR :)