Gabriella439/Haskell-Optparse-Generic-Library
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Add support for lists

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Gabriel Gonzalez 2016-02-26 20:27:42 -08:00
parent 5a5f48a414
commit a7684f3245
1 changed files with 3 additions and 0 deletions
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src/Options/Generic.hs
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@ -141,6 +141,9 @@ instance ParseField FilePath where
instance ParseField a => ParseField (Maybe a) where
parseField = fmap optional parseField
instance ParseField a => ParseField [a] where
parseField = fmap many parseField
newtype Only a = Only { getOnly :: a }
{-| A class for types that can be parsed from the command line