until -package:numeric-prelude -package:util -package:xmonad-contrib -package:LambdaHack -package:base-compat -package:distribution-opensuse -package:netwire -package:intro -package:elerea -is:exact -package:basic-prelude package:rebase
until p f yields the result of applying
f
until
p holds.
Keep running an effectful computation until it returns a
Right value, collecting the Left's using a supplied
Monoid instance.