until -package:numeric-prelude -package:yesod-paginator -package:prelude-compat -package:numhask -package:faktory -package:elerea -is:exact -package:classy-prelude -package:hosc -package:ghc-lib-parser -package:distribution-opensuse 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.