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module Data.Aeson.TH.Extended
    ( module Data.Aeson.TH
    , dropPrefixOptions
    ) where


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import           Data.Aeson.TH
import           Data.Char     (isUpper, toLower)


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dropPrefixOptions :: Options
dropPrefixOptions :: Options
dropPrefixOptions = Options
defaultOptions
    { fieldLabelModifier :: String -> String
fieldLabelModifier = String -> String
dropPrefix
    }
  where
    dropPrefix :: String -> String
dropPrefix str :: String
str = case (Char -> Bool) -> String -> (String, String)
forall a. (a -> Bool) -> [a] -> ([a], [a])
break Char -> Bool
isUpper String
str of
        (_, (y :: Char
y : ys :: String
ys)) -> Char -> Char
toLower Char
y Char -> String -> String
forall a. a -> [a] -> [a]
: String
ys
        _             -> String
str