Data/String.hs

    {-# LANGUAGE Trustworthy #-}
    {-# LANGUAGE NoImplicitPrelude, FlexibleInstances #-}

    -----------------------------------------------------------------------------
    -- |
    -- Module      :  Data.String
    -- Copyright   :  (c) The University of Glasgow 2007
    -- License     :  BSD-style (see the file libraries/base/LICENSE)
    --
    -- Maintainer  :  libraries@haskell.org
    -- Stability   :  experimental
    -- Portability :  portable
    --
    -- The @String@ type and associated operations.
    --
    -----------------------------------------------------------------------------

    module Data.String (
       String
     , IsString(..)

     -- * Functions on strings
     , lines
     , words
     , unlines
     , unwords
     ) where

    import GHC.Base
    import Data.List (lines, words, unlines, unwords)

    -- | Class for string-like datastructures; used by the overloaded string
    --   extension (-XOverloadedStrings in GHC).
    class IsString a where
        fromString :: String -> a

    instance IsString [Char] where
        fromString xs = xs