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Within LTS Haskell 24.6 (ghc-9.10.2)
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checkMapMaybe :: HasCallStack => (a -> Maybe b) -> Parser a -> Parser bopt-env-conf OptEnvConf.Parser Like checkMapEither but without a helpful error message. Prefer checkMapEither.
checkMapMaybeForgivable :: HasCallStack => (a -> Maybe b) -> Parser a -> Parser bopt-env-conf OptEnvConf.Parser Like checkMapMaybe, but allow trying the other side of any alternative if the result is Nothing.
imapMaybe :: (Unboxable a, Unboxable b) => (Int -> a -> Maybe b) -> Vector a -> Vector bunboxing-vector Data.Vector.Unboxing No documentation available.
sMapMaybe :: state -> (update -> Maybe state) -> SFlow update statemidair Midair.Handy No documentation available.