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Charsets.hs
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Charsets.hs
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{-# OPTIONS_GHC -cpp #-}
----------------------------------------------------------------------------------------------------
---- Ïîääåðæêà ðàçëè÷íûõ êîäèðîâîê è ëîêàëèçàöèè èíòåðôåéñà ïðîãðàììû ----
----------------------------------------------------------------------------------------------------
-----------------------------------------------------------------------------
-- |
-- Module : Charsets
-- Copyright : (c) Bulat Ziganshin <[email protected]>
-- License : Public domain
--
-- Maintainer : [email protected]
-- Stability : experimental
-- Portability : GHC
--
-----------------------------------------------------------------------------
module Charsets where
import Prelude hiding (catch)
import Control.Concurrent
import Control.Concurrent.MVar
import Control.OldException
import Control.Monad
import Data.Array
import Data.Char
import Data.IORef
import Data.List
import Foreign
import Foreign.C
import Foreign.Marshal.Alloc
import System.Posix.Internals
import System.Posix.Types
import System.IO
import System.IO.Error hiding (catch)
import System.IO.Unsafe
import System.Locale
import System.Time
import System.Process
import System.Directory
import System.Environment
#if defined(FREEARC_WIN)
import System.Win32
#endif
import Utils
import Files
---------------------------------------------------------------------------------------------------
---- Ãëîáàëüíûå íàñòðîéêè ïåðåêîäèðîâêè äëÿ èñïîëüçîâàíèÿ â ãëóáîêî âëîæåííûõ ôóíêöèÿõ ------------
---------------------------------------------------------------------------------------------------
-- |Translate string from internal to terminal encoding
str2terminal' = unsafePerformIO$ newIORef$ unParseData (domainTranslation aCHARSET_DEFAULTS 't')
str2terminal s = val str2terminal' >>== ($s)
-- |Translate string from terminal to internal encoding
terminal2str' = unsafePerformIO$ newIORef$ parseData (domainTranslation aCHARSET_DEFAULTS 't')
terminal2str s = val terminal2str' >>== ($s)
-- |Translate string from cmdline to internal encoding
cmdline2str' = unsafePerformIO$ newIORef$ parseData (domainTranslation aCHARSET_DEFAULTS 'p')
cmdline2str s = val cmdline2str' >>== ($s)
-- |Translate string from internal to logfile encoding
str2logfile' = unsafePerformIO$ newIORef$ unParseData (domainTranslation aCHARSET_DEFAULTS 'i')
str2logfile s = val str2logfile' >>== ($s)
-- |Îïåðàöèÿ, óñòàíàâëèâàþùàÿ ãëîáàëüíûå íàñòðîéêè ïåðåêîäèðîâêè äëÿ èñïîëüçîâàíèÿ â ãëóáîêî âëîæåííûõ ôóíêöèÿõ
setGlobalCharsets charsets = do
str2filesystem' =: unParseData (domainTranslation charsets 'f')
str2terminal' =: unParseData (domainTranslation charsets 't')
str2logfile' =: unParseData (domainTranslation charsets 'i')
terminal2str' =: parseData (domainTranslation charsets 't')
filesystem2str' =: parseData (domainTranslation charsets 'f')
cmdline2str' =: parseData (domainTranslation charsets 'p')
-- Ïîëó÷åíèå êîìàíäíîé ñòðîêè
#ifdef FREEARC_WIN
myGetArgs = do
alloca $ \p_argc -> do
p_argv_w <- commandLineToArgvW getCommandLineW p_argc
argc <- peek p_argc
argv_w <- peekArray (i argc) p_argv_w
mapM peekTString argv_w >>== tail
foreign import stdcall unsafe "windows.h GetCommandLineW"
getCommandLineW :: LPTSTR
foreign import stdcall unsafe "windows.h CommandLineToArgvW"
commandLineToArgvW :: LPCWSTR -> Ptr CInt -> IO (Ptr LPWSTR)
#else
myGetArgs = getArgs >>= mapM cmdline2str
#endif
---------------------------------------------------------------------------------------------------
---- Ïàðñåð îïöèè êîìàíäíîé ñòðîêè -sc/--charset --------------------------------------------------
---------------------------------------------------------------------------------------------------
-- |Òèï ôóíêöèè, òðàíñëèðóþùåé âõîäíûõ äàííûå çàäàííîãî òèïà â Unicode
type ParseDataFunc = Domain -> String -> String
-- |Îáðàáîòàòü ñïèñîê îïöèé --charset/-sc, âîçâðàòèâ òàáëèöó êîäèðîâîê
-- è ïðîöåäóðû ÷òåíèÿ/çàïèñè ôàéëîâ ñ å¸ ó÷¸òîì
parse_charset_option optionsList = (charsets
,parseFile . domainTranslation charsets
,unParseFile . domainTranslation charsets
,parseData . domainTranslation charsets
,unParseData . domainTranslation charsets)
where
-- Òàáëèöà êîäèðîâîê
charsets = foldl (flip process) aCHARSET_DEFAULTS optionsList
-- Ôóíêöèÿ, ïðåâðàùàþùàÿ çíà÷åíèå îäíîé îïöèè --charset â rar/7z ôîðìàòå, â îïåðàöèþ (charsets -> charsets)
process "--" = const aCHARSET_DEFAULTS -- -sc-- îçíà÷àåò âîññòàíîâèòü çíà÷åíèÿ ïî óìîë÷àíèþ
process (d:cs) | d `elem` ("sa"++aDOMAIN_CODES) = rar (_7zToRAR cs) [d] -- -scDcs: îïöèÿ â ôîðìàòå 7-zip: D=domain char, cs=charset name (utf-8...)
process (c:ds) = rar c ds -- -scCds: îïöèÿ â ôîðìàòå rar: C=charset char (a/u/o/8), ds=domain chars list
process "" = error "Empty charset option"
-- Îáðàáàòûâàåò îïöèþ â rar'îâñêîì ôîðìàòå:
rar c ds -- óñòàíîâèòü â `c` ýëåìåíòû ñïèñêà, ïåðå÷èñëåííûå â ds (ïî óìîë÷àíèþ 'c' è 'l'; 's' óñòàíàâëèâàåò êîäèðîâêó äëÿ ëèñòôàéëîâ; 'a' óñòàíàâëèâàåò âñå êîäèðîâêè ðàçîì)
| c `notElem` aCHARSET_CODES = error ("Unknown charset code "++quote [c])
| Just domain <- domains .$ find (`notElem` aDOMAIN_CODES) = error ("Unknown charset domain code "++quote [domain])
| otherwise = flip (foldl Utils.update) [(d,c) | d<-domains]
where domains = ds .$ changeTo [("","cl"), ("s","l"), ("a",aDOMAIN_CODES)]
-- Ïðåîáðàçóåò íàçâàíèå charset â 7zip-îâñêîì ôîðìàòå â RAR'îâñêèé
_7zToRAR charset = case (strLower charset) of
"utf-8" -> '8'; "win" -> 'a'
"utf8" -> '8'; "ansi" -> 'a'
"utf-16" -> 'u'; "dos" -> 'o'
"utf16" -> 'u'; "oem" -> 'o'
('=':_) -> _7zToRAR (tail charset)
_ -> error ("Unknown charset "++quote charset)
-- Ïðîöåäóðà ÷òåíèÿ ôàéëà, òðàíñëèðóþùàÿ åãî êîäèðîâêó è ðàçáèâàþùàÿ íà îòäåëüíûå ñòðîêè
parseFile encoding file = fileGetBinary file >>== parseData encoding >>== linesCRLF
-- Ïðîöåäóðà òðàíñëÿöèè âõîäíûõ äàííûõ èç encoding â Unicode
parseData encoding = aTRANSLATE_INPUT (charsetTranslation encoding)
-- Ïðîöåäóðà çàïèñè ôàéëà, òðàíñëèðóþùàÿ äàííûå â êîäèðîâêó encoding
unParseFile encoding file = filePutBinary file . unParseData encoding
-- Ïðîöåäóðà òðàíñëÿöèè âûõîäíûõ äàííûõ èç encoding èç Unicode
unParseData encoding = aTRANSLATE_OUTPUT (charsetTranslation encoding)
-- |Ðàçáèåíèå íà ñòðîêè ôàéëà, èïîëüçóþùåãî ëþáîå ïðåäñòàâëåíèå êîíöà ñòðîêè (CR, LF, CR+LF)
linesCRLF = recursive oneline -- oneline "abc\n..." = ("abc","...")
where oneline ('\r':'\n':s) = ("",'\xFEFF':s)
oneline ('\r':s) = ("",'\xFEFF':s)
oneline ('\n':s) = ("",'\xFEFF':s)
oneline ('\xFEFF':s) = oneline s
oneline (c:s) = (c:s0,s1) where (s0,s1) = oneline s
oneline "" = ("","")
-- Áóäåì ñ÷èòàòü, ÷òî âñå GUI êîíôèã-ôàéëû õðàíÿòñÿ â UTF-8
readConfigFile = parseFile '8'
saveConfigFile file = unParseFile '8' file . joinWith "\n"
modifyConfigFile file f = readConfigFileManyTries file >>== f >>= saveConfigFile file
-- Ïîä Windows äîïîëíèòåëüíî äîáàâëÿåì BOM è èñïîëüçóåì CR/LF
saveWindowsConfigFile file = unParseFile '8' file . (chr 0xFEFF:) . joinWith "\r\n"
-- Ïðî÷èòàòü êîíôèã-ôàéë, ïîâòîðÿÿ ïîïûòêè åñëè îí ïóñò/íåäîñòóïåí
readConfigFileManyTries file = go 1 where
go attempt = do xs <- readConfigFile file `catch` (\e->return [])
if xs==[] && attempt<100
then do sleepSeconds 0.01
go (attempt+1)
else return xs
---------------------------------------------------------------------------------------------------
---- Ïîääåðæêà ðàçëè÷íûõ êîäèðîâîê äëÿ ââîäà/âûâîäà -----------------------------------------------
---------------------------------------------------------------------------------------------------
-- |Âîçâðàùàåò charset, èñïîëüçóåìûé â domainCharsets äëÿ äàííûõ òèïà domain
domainTranslation domainCharsets domain =
lookup domain domainCharsets `defaultVal` error ("Unknown charset domain code "++quote [domain])
-- |Òðàíñëÿöèÿ äàííûõ, çàäàííûõ â êîäèðîâêå charset
charsetTranslation charset =
lookup charset aCHARSETS `defaultVal` error ("Unknown charset code "++quote [charset])
-- |Òðàíñëÿöèÿ äàííûõ èç îáëàñòè domain (ëèñòôàéëû, êîíôèãôàéëû, êîììåíò-ôàéëû...),
-- èñïîëüçóÿ charset, çàäàííûé äëÿ íå¸ â domainÑharsets
translation domainCharsets domain =
charsetTranslation $ domainTranslation domainCharsets domain
-- Òèïû, èñïîëüçóåìûå äëÿ ïðåäñòàâëåíèÿ domain è charset
type Domain = Char
type Charset = Char
-- |Each charset is represented by pair of functions: input translation (byte sequence into Unicode String) and output translation
data TRANSLATION = TRANSLATION {aTRANSLATE_INPUT, aTRANSLATE_OUTPUT :: String->String}
-- |Set of domain codes used in -sc option
aDOMAIN_CODES = map fst aCHARSET_DEFAULTS
-- |Set of single-char charset codes supported by current platform
aCHARSET_CODES = map fst aCHARSETS
-- |Character sets and functions to translate texts from/to these charsets
aCHARSETS = [ ('0', TRANSLATION id id)
, ('8', TRANSLATION utf8_to_unicode unicode2utf8)
, ('u', TRANSLATION utf16_to_unicode unicode2utf16)
] ++ aLOCAL_CHARSETS
#ifdef FREEARC_UNIX
aLOCAL_CHARSETS = []
-- |Default charsets for various domains
aCHARSET_DEFAULTS = [ ('f','8') -- filenames in filesystem: UTF-8
, ('d','8') -- filenames in archive directory: UTF-8
, ('l','8') -- filelists: UTF-8
, ('c','8') -- comment files: UTF-8
, ('t','8') -- terminal: UTF-8
, ('p','8') -- program arguments: UTF-8
, ('i','8') -- ini/group files: UTF-8
]
#else
-- |Windows-specific charsets
aLOCAL_CHARSETS = [ ('o', TRANSLATION oem2unicode unicode2oem)
, ('a', TRANSLATION ansi2unicode unicode2ansi)
]
-- |Default charsets for various domains
aCHARSET_DEFAULTS = [ ('f','u') -- filenames in filesystem: UTF-16
, ('d','8') -- filenames in archive directory: UTF-8
, ('l','o') -- filelists: OEM
, ('c','o') -- comment files: OEM
, ('t','o') -- terminal: OEM
, ('p','a') -- program arguments: ANSI
, ('i','o') -- ini/group files: OEM
]
---------------------------------------------------------------------------------------------------
---- Windows-specific codecs ----------------------------------------------------------------------
---------------------------------------------------------------------------------------------------
-- |Ïðåîáðàçîâàòü âèíäîâûå êîäû ñèìâîëîâ \r è \n â ÷åëîâå÷åñêèé âèä
iHateWindows = replace (chr 9834) '\r' . replace (chr 9689) '\n'
-- |Translate string from Unicode to OEM encoding
unicode2oem s =
if all isAscii s
then s
else unsafePerformIO $ do
withCWStringLen s $ \(wstr,len) -> do
allocaBytes len $ \cstr -> do
c_WideToOemBuff wstr cstr (i len)
peekCStringLen (cstr,len)
-- |Translate string from OEM encoding to Unicode
oem2unicode s =
if all isAscii s
then s
else iHateWindows $
unsafePerformIO $ do
withCStringLen s $ \(cstr,len) -> do
allocaBytes (len*2) $ \wstr -> do
c_OemToWideBuff cstr wstr (i len)
peekCWStringLen (wstr,len)
-- |Translate string from Unicode to ANSI encoding
unicode2ansi s =
if all isAscii s
then s
else unsafePerformIO $ do
withCWStringLen s $ \(wstr,len) -> do
allocaBytes len $ \cstr -> do
c_WideToOemBuff wstr cstr (i len)
c_OemToAnsiBuff cstr cstr (i len)
peekCStringLen (cstr,len)
-- |Translate string from ANSI encoding to Unicode
ansi2unicode s =
if all isAscii s
then s
else iHateWindows $
unsafePerformIO $ do
withCStringLen s $ \(cstr,len) -> do
allocaBytes (len*2) $ \wstr -> do
c_AnsiToOemBuff cstr cstr (i len)
c_OemToWideBuff cstr wstr (i len)
peekCWStringLen (wstr,len)
foreign import stdcall unsafe "winuser.h CharToOemBuffW"
c_WideToOemBuff :: CWString -> CString -> DWORD -> IO Bool
foreign import stdcall unsafe "winuser.h OemToCharBuffW"
c_OemToWideBuff :: CString -> CWString -> DWORD -> IO Bool
foreign import stdcall unsafe "winuser.h OemToCharBuffA"
c_OemToAnsiBuff :: CString -> CString -> DWORD -> IO Bool
foreign import stdcall unsafe "winuser.h CharToOemBuffA"
c_AnsiToOemBuff :: CString -> CString -> DWORD -> IO Bool
#endif
---------------------------------------------------------------------------------------------------
---- UTF-8, UTF-16 codecs; URL encoding -----------------------------------------------------------
---------------------------------------------------------------------------------------------------
-- |Translate string from UTF-16 encoding to Unicode
utf16_to_unicode = tryToSkip [chr 0xFEFF] . map chr . fromUTF16 . map ord
where
fromUTF16 (c1:c2:c3:c4:wcs)
| 0xd8<=c2 && c2<=0xdb && 0xdc<=c4 && c4<=0xdf =
((c1+c2*256 - 0xd800)*0x400 + (c3+c4*256 - 0xdc00) + 0x10000) : fromUTF16 wcs
fromUTF16 (c1:c2:wcs) = c1+c2*256 : fromUTF16 wcs
fromUTF16 [] = []
-- |Translate string from Unicode to UTF-16 encoding
unicode2utf16 = map chr . foldr utf16Char [] . map ord
where
utf16Char c wcs
| c < 0x10000 = c `mod` 256 : c `div` 256 : wcs
| otherwise = let c' = c - 0x10000 in
((c' `div` 0x400) .&. 0xFF) :
(c' `div` 0x40000 + 0xd8) :
(c' .&. 0xFF) :
(((c' `mod` 0x400) `div` 256) + 0xdc) : wcs
-- |Translate string from UTF-8 encoding to Unicode
utf8_to_unicode s =
if all isAscii s
then s
else (tryToSkip [chr 0xFEFF] . fromUTF' . map ord) s where
fromUTF' [] = []
fromUTF' (all@(x:xs))
| x<=0x7F = chr x : fromUTF' xs
| x<=0xBF = err
| x<=0xDF = twoBytes all
| x<=0xEF = threeBytes all
| x<=0xFF = fourBytes all
| otherwise = err
twoBytes (x1:x2:xs) = chr ((((x1 .&. 0x1F) `shift` 6) .|.
(x2 .&. 0x3F))):fromUTF' xs
twoBytes _ = error "fromUTF: illegal two byte sequence"
threeBytes (x1:x2:x3:xs) = chr ((((x1 .&. 0x0F) `shift` 12) .|.
((x2 .&. 0x3F) `shift` 6) .|.
(x3 .&. 0x3F))):fromUTF' xs
threeBytes _ = error "fromUTF: illegal three byte sequence"
fourBytes (x1:x2:x3:x4:xs) = chr ((((x1 .&. 0x0F) `shift` 18) .|.
((x2 .&. 0x3F) `shift` 12) .|.
((x3 .&. 0x3F) `shift` 6) .|.
(x4 .&. 0x3F))):fromUTF' xs
fourBytes _ = error "fromUTF: illegal four byte sequence"
err = error "fromUTF: illegal UTF-8 character"
-- |Translate string from Unicode to UTF-8 encoding
unicode2utf8 s =
if all isAscii s
then s
else go s
where go [] = []
go (x:xs) | ord x<=0x007f = chr (ord x) : go xs
| ord x<=0x07ff = chr (0xC0 .|. ((ord x `shiftR` 6) .&. 0x1F)):
chr (0x80 .|. ( ord x .&. 0x3F)):
go xs
| ord x<=0xffff = chr (0xE0 .|. ((ord x `shiftR` 12) .&. 0x0F)):
chr (0x80 .|. ((ord x `shiftR` 6) .&. 0x3F)):
chr (0x80 .|. ( ord x .&. 0x3F)):
go xs
| otherwise = chr (0xF0 .|. ( ord x `shiftR` 18)) :
chr (0x80 .|. ((ord x `shiftR` 12) .&. 0x3F)) :
chr (0x80 .|. ((ord x `shiftR` 6) .&. 0x3F)) :
chr (0x80 .|. ( ord x .&. 0x3F)) :
go xs
-- |Çàêîäèðîâàòü ñèìâîëû, çàïðåù¸ííûå â URL
urlEncode = concatMap (\c -> if isReservedChar c then '%':encode16 [c] else [c]) . unicode2utf8
where
isReservedChar x
| x >= 'a' && x <= 'z' = False
| x >= 'A' && x <= 'Z' = False
| x >= '0' && x <= '9' = False
| x <= chr 0x20 || x >= chr 0x7F = True
| otherwise = x `elem` [';','/','?',':','@','&'
,'=','+',',','$','{','}'
,'|','\\','^','[',']','`'
,'<','>','#','%', chr 34]
---------------------------------------------------------------------------------------------------
---- Internalization ------------------------------------------------------------------------------
---------------------------------------------------------------------------------------------------
{-# NOINLINE locale #-}
-- |Ëîêàëèçàöèÿ: îòîáðàæåíèå èíäåêñà â ëîêàëèçîâàííóþ ñòðîêó
locale :: IORef (Array Int (Maybe String))
locale = unsafePerformIO (ref empty_locale)
empty_locale = array (0,-1) []
{-# NOINLINE setLocale #-}
-- |Óñòàíîâèòü ëîêàëèçàöèþ ïî ôàéëó
setLocale ["--"] = return ()
setLocale localeFiles = do
localeInfo <- parseLocaleFiles localeFiles
locale =: localeInfo
-- |Ïåðåâîäèò ñòðîêó/ñïèñîê ñòðîê íà ìåñòíûé ÿçûê
i18ns = mapM i18n
i18n = i18n' .>>== fst
i18n' = i18n_general (val locale)
i18no = drop 5 -- óáðàòü íîìåð èç ñòðîêè, íå ïåðåâîäÿ å¸ íà ìåñòíûé ÿçûê
-- |Ïðîâåðêà ÷òî ýòî ñòðîêà âèäà "dddd ...."
is_i18 str = all isDigit (take 4 str) && (take 1 (drop 4 str) == " ")
{-# NOINLINE i18fmt #-}
-- |Îòôîðìàòèðîâàòü ñïèñîê ñòðîê, èñïîëüçóÿ ïåðâóþ êàê òðåáóùèé ëîêàëèçàöèè øàáëîí,
-- à îñòàëüíûå - êàê åãî àðãóìåíòû
i18fmt (x:xs) = i18n x >>== (`formatn` xs)
{-# NOINLINE parseLocaleFiles #-}
-- |Ïðî÷èòàòü èç ôàéëîâ ñïèñêè ñòðîê ëîêàëèçàöèè (ñ ïðèîðèòåòîì ó ñòðîê èç áîëåå ïîçäíèõ ôàéëîâ)
parseLocaleFiles localeFiles = do
xs <- foreach localeFiles $ \localeFile -> do
-- Ïðî÷èòàåì ôàéë ëîêàëèçàöèè èëè âîçâðàòèì ïóñòóþ áîëâàíêó
localeInfo <- readConfigFile localeFile `catch` \e -> return ["0000=English"]
-- Îòáèðàåì ñòðîêè, íà÷èíàþùèåñÿ íà "dddd", è ñîçäà¸ì èç íèõ ìàññèâ: dddd -> òåêñò ïîñëå çíàêà '='
-- Åñëè òåêñò ïîñëå '=' çàêëþ÷¸í â äâîéíûå êàâû÷êè - èçáàâèìñÿ îò íèõ
-- Ñèìâîëû '&' çàìåíÿþòñÿ íà '_' (ðàçëè÷èå â àêñåëåðàòîðàõ 7-zip è Gtk)
-- \" çàìåíÿåòñÿ íà ïðîñòî ", çàïèñü "\\n" íà ñàì ñèìâîë \n
return$ localeInfo .$ filter (\s -> length s > 4 && s `contains` '=')
.$ filter (all isDigit.take 4)
.$ map (split2 '=')
.$ deleteIf (("??"==).snd)
.$ mapFsts (readInt.take 4)
.$ mapSnds (\s -> s.$ (s.$match "\"*\"" &&& (reverse.drop 1.reverse.drop 1)))
.$ mapSnds (replace '&' '_'. replaceAll "\\\"" "\"". replaceAll "\\n" "\n" . replaceAll "FreeArc" aFreeArc)
--
return$ populateArray Nothing Just (concat xs)
{-# NOINLINE i18n_general #-}
-- |Âîçâðàùàåò ëîêàëèçîâàííûé òåêñò íàäïèñè è å¸ âñïëûâàþùóþ ïîäñêàçêó
i18n_general getLocale text = do
-- Åñëè òåêñò ñîäåðæèò â íà÷àëå "dddd ", òî âåðí¸ì âìåñòî íåãî ñòðîêó ëîêàëèçàöèè çà íîìåðîì dddd
-- Åñëè òàêîé ñòðîêè íå íàéäåíî - âîçâðàòèì ïåðåäàííûé òåêñò çà âû÷åòîì "dddd "
-- Êðîìå òîãî, òåêñòû âèäà " * " ëîêàëèçóþòñÿ â àíàëîãè÷íûé âèä
case splitAt 4 text of
(d,' ':engText) | all isDigit d -> do
let f = (engText.$match " * ") &&& ((" "++).(++" "))
arr <- getLocale
let n = readInt d
g i def = if i.$inRange (bounds arr)
then fmap f (arr!i) `defaultVal` def
else def
return (g n engText, g (n+1000) "")
_ -> return (text, "")