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|
{-# LANGUAGE DeriveDataTypeable, EmptyDataDecls, ForeignFunctionInterface #-}
-- |
-- Module : Data.Text.ICU.Collate.Internal
-- Copyright : (c) 2010 Bryan O'Sullivan
--
-- License : BSD-style
-- Maintainer : bos@serpentine.com
-- Stability : experimental
-- Portability : GHC
--
-- Internals of the string collation infrastructure.
module Data.Text.ICU.Collate.Internal
(
-- * Unicode collation API
MCollator(..)
, Collator(..)
, UCollator
, withCollator
, wrap
) where
import Data.Typeable (Typeable)
import Foreign.ForeignPtr (ForeignPtr, withForeignPtr)
import Foreign.Ptr (FunPtr, Ptr)
import Data.Text.ICU.Internal (newICUPtr)
-- $api
--
data UCollator
-- | String collator type.
data MCollator = MCollator {-# UNPACK #-} !(ForeignPtr UCollator)
deriving (Typeable)
-- | String collator type.
newtype Collator = C MCollator
deriving (Typeable)
withCollator :: MCollator -> (Ptr UCollator -> IO a) -> IO a
withCollator (MCollator col) action = withForeignPtr col action
{-# INLINE withCollator #-}
wrap :: IO (Ptr UCollator) -> IO MCollator
wrap = newICUPtr MCollator ucol_close
{-# INLINE wrap #-}
foreign import ccall unsafe "hs_text_icu.h &__hs_ucol_close" ucol_close
:: FunPtr (Ptr UCollator -> IO ())
|
