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|
{-# LANGUAGE ForeignFunctionInterface #-}
-----------------------------------------------------------------------------
-- |
-- Module : Localize
-- Copyright : (C) 2011 Martin Perner
-- License : BSD-style (see LICENSE)
--
-- Maintainer : Martin Perner <martin@perner.cc>
-- Stability : unstable
-- Portability : unportable
--
-- This module provides an interface to locale information e.g. for DateL
--
-----------------------------------------------------------------------------
module Localize
( setupTimeLocale,
getTimeLocale
) where
import Foreign
import Foreign.C
import qualified System.Locale as L
#ifdef UTF8
import Codec.Binary.UTF8.String
#endif
-- get localized strings
type NlItem = CInt
#include <langinfo.h>
foreign import ccall unsafe "langinfo.h nl_langinfo"
nl_langinfo :: NlItem -> IO CString
#{enum NlItem,
, AM_STR , PM_STR \
, D_T_FMT , D_FMT , T_FMT , T_FMT_AMPM \
, ABDAY_1 , ABDAY_2 , ABDAY_3 , ABDAY_4 , ABDAY_5 , ABDAY_6 , ABDAY_7 \
, DAY_1 , DAY_2 , DAY_3 , DAY_4 , DAY_5 , DAY_6 , DAY_7 \
, ABMON_1 , ABMON_2 , ABMON_3 , ABMON_4 , ABMON_5 , ABMON_6 , ABMON_7 \
, ABMON_8 , ABMON_9 , ABMON_10 , ABMON_11 , ABMON_12 \
, MON_1 , MON_2 , MON_3 , MON_4 , MON_5 , MON_6 , MON_7 , MON_8 , MON_9 \
, MON_10 , MON_11 , MON_12\
}
#let LIST_CTR fst,snd,idx = "( getLangInfo "fst""idx" , getLangInfo "snd""idx" )"
getLangInfo :: NlItem -> String
#ifdef UTF8
getLangInfo item = decodeString $ unsafePerformIO $ getLangInfo' item
#else
getLangInfo item = unsafePerformIO $ getLangInfo' item
#endif
getLangInfo' :: NlItem -> IO String
getLangInfo' item = do
itemStr <- nl_langinfo item
peekCString itemStr
#include <locale.h>
foreign import ccall unsafe "locale.h setlocale"
setlocale :: CInt -> CString -> IO CString
setupTimeLocale :: String -> IO ()
setupTimeLocale l = withCString l (setlocale #const LC_TIME) >> return ()
getTimeLocale :: L.TimeLocale
getTimeLocale = L.TimeLocale {
L.wDays = [ #{LIST_CTR "day","abday","1"}
, #{LIST_CTR "day","abday","2"}
, #{LIST_CTR "day","abday","3"}
, #{LIST_CTR "day","abday","4"}
, #{LIST_CTR "day","abday","5"}
, #{LIST_CTR "day","abday","6"}
, #{LIST_CTR "day","abday","7"}
],
L.months = [ #{LIST_CTR "mon","abmon","1"}
, #{LIST_CTR "mon","abmon","2"}
, #{LIST_CTR "mon","abmon","3"}
, #{LIST_CTR "mon","abmon","4"}
, #{LIST_CTR "mon","abmon","5"}
, #{LIST_CTR "mon","abmon","6"}
, #{LIST_CTR "mon","abmon","7"}
, #{LIST_CTR "mon","abmon","8"}
, #{LIST_CTR "mon","abmon","9"}
, #{LIST_CTR "mon","abmon","10"}
, #{LIST_CTR "mon","abmon","11"}
, #{LIST_CTR "mon","abmon","12"}
],
-- Intervals are not available from this interface
L.intervals = L.intervals L.defaultTimeLocale,
L.amPm = (getLangInfo amStr, getLangInfo pmStr),
L.dateTimeFmt = getLangInfo dTFmt,
L.dateFmt = getLangInfo dFmt,
L.timeFmt = getLangInfo tFmt,
L.time12Fmt = getLangInfo tFmtAmpm
}
|
