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|
{-# OPTIONS -fno-implicit-prelude #-}
-----------------------------------------------------------------------------
-- |
-- Module : Text.Show
-- Copyright : (c) The University of Glasgow 2001
-- License : BSD-style (see the file libraries/base/LICENSE)
--
-- Maintainer : libraries@haskell.org
-- Stability : provisional
-- Portability : portable
--
-- Converting values to readable strings:
-- the 'Show' class and associated functions.
--
-----------------------------------------------------------------------------
module Text.Show (
ShowS, -- String -> String
Show(
showsPrec, -- :: Int -> a -> ShowS
show, -- :: a -> String
showList -- :: [a] -> ShowS
),
shows, -- :: (Show a) => a -> ShowS
showChar, -- :: Char -> ShowS
showString, -- :: String -> ShowS
showParen, -- :: Bool -> ShowS -> ShowS
showListWith, -- :: (a -> ShowS) -> [a] -> ShowS
) where
#ifdef __GLASGOW_HASKELL__
import GHC.Show
#endif
-- | Show a list (using square brackets and commas), given a function
-- for showing elements.
showListWith :: (a -> ShowS) -> [a] -> ShowS
showListWith = showList__
#ifndef __GLASGOW_HASKELL__
showList__ :: (a -> ShowS) -> [a] -> ShowS
showList__ _ [] s = "[]" ++ s
showList__ showx (x:xs) s = '[' : showx x (showl xs)
where
showl [] = ']' : s
showl (y:ys) = ',' : showx y (showl ys)
#endif
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