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liftMaybe, liftEither, liftExceptT #196

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#212
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liftMaybe, liftEither, liftExceptT#196
#212
@jamesdbrock

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@jamesdbrock
jamesdbrock
opened on May 12, 2022

“Validation Parsers”

liftMaybe :: forall s m a. Monad m => (Unit -> String) -> Maybe a -> ParserT s m a
liftEither :: forall s m a. Monad m => Either String a -> ParserT s m a
liftExceptT :: forall s m a. Monad m => ExceptT String m a -> ParserT s m a

Similar to
https://pursuit.purescript.org/packages/purescript-transformers/6.0.0/docs/Control.Monad.Error.Class#v:liftMaybe

Similar to
https://pursuit.purescript.org/packages/purescript-protobuf/2.1.2/docs/Protobuf.Library#v:parseMaybe

See also #84

See also https://pursuit.purescript.org/packages/purescript-lazy/6.0.0/docs/Data.Lazy

Or perhaps these should be called maybeParserT, eitherParserT, exceptParserT?

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