~alcinnz/fontconfig-pure

ref: 4da6f787545bfef4460ec18e4093233d0015df48 fontconfig-pure/lib/Graphics/Text/Font/Choose/LangSet.hs -rw-r--r-- 444 bytes
4da6f787 — Adrian Cochrane Datamodel FontConfig in Haskell. 10 months ago
                                                                                
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module Graphics.Text.Font.Choose.LangSet where

import Data.Set (Set)
import qualified Data.Set as S

import Data.MessagePack (MessagePack(..))

type LangSet = Set String
newtype LangSet' = LangSet' { unLangSet :: LangSet }

instance MessagePack LangSet' where
    toObject = toObject . S.toList . unLangSet
    fromObject msg = LangSet' <$> S.fromList <$> fromObject msg

-- TODO: Implement language bindings! But first: Datamodel everything!