From 3238140d41614ea01e912797869c673b966d312a Mon Sep 17 00:00:00 2001 From: malcolm Date: Fri, 11 Jun 2004 11:12:52 +0000 Subject: [PATCH] [project @ 2004-06-11 11:12:52 by malcolm] Remove hsc2hs files prior to re-grafting the entire directory. --- ghc/utils/hsc2hs/Main.hs | 856 ---------------------------------------------- 1 file changed, 856 deletions(-) delete mode 100644 ghc/utils/hsc2hs/Main.hs diff --git a/ghc/utils/hsc2hs/Main.hs b/ghc/utils/hsc2hs/Main.hs deleted file mode 100644 index cbb454e..0000000 --- a/ghc/utils/hsc2hs/Main.hs +++ /dev/null @@ -1,856 +0,0 @@ -{-# OPTIONS -fffi #-} - ------------------------------------------------------------------------- --- $Id: Main.hs,v 1.54 2004/03/03 17:11:51 simonpj Exp $ --- --- Program for converting .hsc files to .hs files, by converting the --- file into a C program which is run to generate the Haskell source. --- Certain items known only to the C compiler can then be used in --- the Haskell module; for example #defined constants, byte offsets --- within structures, etc. --- --- See the documentation in the Users' Guide for more details. - -#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 -import System.Console.GetOpt -#else -import GetOpt -#endif - -import System (getProgName, getArgs, ExitCode(..), exitWith, system) -import Directory (removeFile,doesFileExist) -import Monad (MonadPlus(..), liftM, liftM2, when, unless) -import Char (isAlpha, isAlphaNum, isSpace, isDigit, toUpper, intToDigit, ord) -import List (intersperse, isSuffixOf) -import IO (hPutStr, hPutStrLn, stderr) - -#if defined(mingw32_HOST_OS) -import Foreign -#if __GLASGOW_HASKELL__ >= 504 || __NHC__ >= 114 -import Foreign.C.String -#else -import CString -#endif -#endif - - -version :: String -version = "hsc2hs version 0.66\n" - -data Flag - = Help - | Version - | Template String - | Compiler String - | Linker String - | CompFlag String - | LinkFlag String - | NoCompile - | Include String - | Define String (Maybe String) - | Output String - | Verbose - -template_flag :: Flag -> Bool -template_flag (Template _) = True -template_flag _ = False - -include :: String -> Flag -include s@('\"':_) = Include s -include s@('<' :_) = Include s -include s = Include ("\""++s++"\"") - -define :: String -> Flag -define s = case break (== '=') s of - (name, []) -> Define name Nothing - (name, _:value) -> Define name (Just value) - -options :: [OptDescr Flag] -options = [ - Option ['o'] ["output"] (ReqArg Output "FILE") - "name of main output file", - Option ['t'] ["template"] (ReqArg Template "FILE") - "template file", - Option ['c'] ["cc"] (ReqArg Compiler "PROG") - "C compiler to use", - Option ['l'] ["ld"] (ReqArg Linker "PROG") - "linker to use", - Option ['C'] ["cflag"] (ReqArg CompFlag "FLAG") - "flag to pass to the C compiler", - Option ['I'] [] (ReqArg (CompFlag . ("-I"++)) "DIR") - "passed to the C compiler", - Option ['L'] ["lflag"] (ReqArg LinkFlag "FLAG") - "flag to pass to the linker", - Option ['i'] ["include"] (ReqArg include "FILE") - "as if placed in the source", - Option ['D'] ["define"] (ReqArg define "NAME[=VALUE]") - "as if placed in the source", - Option [] ["no-compile"] (NoArg NoCompile) - "stop after writing *_hsc_make.c", - Option ['v'] ["verbose"] (NoArg Verbose) - "dump commands to stderr", - Option ['?'] ["help"] (NoArg Help) - "display this help and exit", - Option ['V'] ["version"] (NoArg Version) - "output version information and exit" ] - - -main :: IO () -main = do - prog <- getProgramName - let header = "Usage: "++prog++" [OPTIONS] INPUT.hsc [...]\n" - args <- getArgs - let (flags, files, errs) = getOpt Permute options args - - -- If there is no Template flag explicitly specified, try - -- to find one by looking near the executable. This only - -- works on Win32 (getExecDir). On Unix, there's a wrapper - -- script which specifies an explicit template flag. - flags_w_tpl <- if any template_flag flags then - return flags - else - do mb_path <- getExecDir "/bin/hsc2hs.exe" - add_opt <- - case mb_path of - Nothing -> return id - Just path -> do - let templ = path ++ "/template-hsc.h" - flg <- doesFileExist templ - if flg - then return ((Template templ):) - else return id - return (add_opt flags) - case (files, errs) of - (_, _) - | any isHelp flags_w_tpl -> bye (usageInfo header options) - | any isVersion flags_w_tpl -> bye version - where - isHelp Help = True; isHelp _ = False - isVersion Version = True; isVersion _ = False - ((_:_), []) -> mapM_ (processFile flags_w_tpl) files - (_, _ ) -> die (concat errs ++ usageInfo header options) - -getProgramName :: IO String -getProgramName = liftM (`withoutSuffix` "-bin") getProgName - where str `withoutSuffix` suff - | suff `isSuffixOf` str = take (length str - length suff) str - | otherwise = str - -bye :: String -> IO a -bye s = putStr s >> exitWith ExitSuccess - -die :: String -> IO a -die s = hPutStr stderr s >> exitWith (ExitFailure 1) - -processFile :: [Flag] -> String -> IO () -processFile flags name - = do let file_name = dosifyPath name - s <- readFile file_name - case parser of - Parser p -> case p (SourcePos file_name 1) s of - Success _ _ _ toks -> output flags file_name toks - Failure (SourcePos name' line) msg -> - die (name'++":"++show line++": "++msg++"\n") - ------------------------------------------------------------------------- --- A deterministic parser which remembers the text which has been parsed. - -newtype Parser a = Parser (SourcePos -> String -> ParseResult a) - -data ParseResult a = Success !SourcePos String String a - | Failure !SourcePos String - -data SourcePos = SourcePos String !Int - -updatePos :: SourcePos -> Char -> SourcePos -updatePos pos@(SourcePos name line) ch = case ch of - '\n' -> SourcePos name (line + 1) - _ -> pos - -instance Monad Parser where - return a = Parser $ \pos s -> Success pos [] s a - Parser m >>= k = - Parser $ \pos s -> case m pos s of - Success pos' out1 s' a -> case k a of - Parser k' -> case k' pos' s' of - Success pos'' out2 imp'' b -> - Success pos'' (out1++out2) imp'' b - Failure pos'' msg -> Failure pos'' msg - Failure pos' msg -> Failure pos' msg - fail msg = Parser $ \pos _ -> Failure pos msg - -instance MonadPlus Parser where - mzero = fail "mzero" - Parser m `mplus` Parser n = - Parser $ \pos s -> case m pos s of - success@(Success _ _ _ _) -> success - Failure _ _ -> n pos s - -getPos :: Parser SourcePos -getPos = Parser $ \pos s -> Success pos [] s pos - -setPos :: SourcePos -> Parser () -setPos pos = Parser $ \_ s -> Success pos [] s () - -message :: Parser a -> String -> Parser a -Parser m `message` msg = - Parser $ \pos s -> case m pos s of - success@(Success _ _ _ _) -> success - Failure pos' _ -> Failure pos' msg - -catchOutput_ :: Parser a -> Parser String -catchOutput_ (Parser m) = - Parser $ \pos s -> case m pos s of - Success pos' out s' _ -> Success pos' [] s' out - Failure pos' msg -> Failure pos' msg - -fakeOutput :: Parser a -> String -> Parser a -Parser m `fakeOutput` out = - Parser $ \pos s -> case m pos s of - Success pos' _ s' a -> Success pos' out s' a - Failure pos' msg -> Failure pos' msg - -lookAhead :: Parser String -lookAhead = Parser $ \pos s -> Success pos [] s s - -satisfy :: (Char -> Bool) -> Parser Char -satisfy p = - Parser $ \pos s -> case s of - c:cs | p c -> Success (updatePos pos c) [c] cs c - _ -> Failure pos "Bad character" - -char_ :: Char -> Parser () -char_ c = do - satisfy (== c) `message` (show c++" expected") - return () - -anyChar_ :: Parser () -anyChar_ = do - satisfy (const True) `message` "Unexpected end of file" - return () - -any2Chars_ :: Parser () -any2Chars_ = anyChar_ >> anyChar_ - -many :: Parser a -> Parser [a] -many p = many1 p `mplus` return [] - -many1 :: Parser a -> Parser [a] -many1 p = liftM2 (:) p (many p) - -many_ :: Parser a -> Parser () -many_ p = many1_ p `mplus` return () - -many1_ :: Parser a -> Parser () -many1_ p = p >> many_ p - -manySatisfy, manySatisfy1 :: (Char -> Bool) -> Parser String -manySatisfy = many . satisfy -manySatisfy1 = many1 . satisfy - -manySatisfy_, manySatisfy1_ :: (Char -> Bool) -> Parser () -manySatisfy_ = many_ . satisfy -manySatisfy1_ = many1_ . satisfy - ------------------------------------------------------------------------- --- Parser of hsc syntax. - -data Token - = Text SourcePos String - | Special SourcePos String String - -parser :: Parser [Token] -parser = do - pos <- getPos - t <- catchOutput_ text - s <- lookAhead - rest <- case s of - [] -> return [] - _:_ -> liftM2 (:) (special `fakeOutput` []) parser - return (if null t then rest else Text pos t : rest) - -text :: Parser () -text = do - s <- lookAhead - case s of - [] -> return () - c:_ | isAlpha c || c == '_' -> do - anyChar_ - manySatisfy_ (\c' -> isAlphaNum c' || c' == '_' || c' == '\'') - text - c:_ | isHsSymbol c -> do - symb <- catchOutput_ (manySatisfy_ isHsSymbol) - case symb of - "#" -> return () - '-':'-':symb' | all (== '-') symb' -> do - return () `fakeOutput` symb - manySatisfy_ (/= '\n') - text - _ -> do - return () `fakeOutput` unescapeHashes symb - text - '\"':_ -> do anyChar_; hsString '\"'; text - '\'':_ -> do anyChar_; hsString '\''; text - '{':'-':_ -> do any2Chars_; linePragma `mplus` hsComment; text - _:_ -> do anyChar_; text - -hsString :: Char -> Parser () -hsString quote = do - s <- lookAhead - case s of - [] -> return () - c:_ | c == quote -> anyChar_ - '\\':c:_ - | isSpace c -> do - anyChar_ - manySatisfy_ isSpace - char_ '\\' `mplus` return () - hsString quote - | otherwise -> do any2Chars_; hsString quote - _:_ -> do anyChar_; hsString quote - -hsComment :: Parser () -hsComment = do - s <- lookAhead - case s of - [] -> return () - '-':'}':_ -> any2Chars_ - '{':'-':_ -> do any2Chars_; hsComment; hsComment - _:_ -> do anyChar_; hsComment - -linePragma :: Parser () -linePragma = do - char_ '#' - manySatisfy_ isSpace - satisfy (\c -> c == 'L' || c == 'l') - satisfy (\c -> c == 'I' || c == 'i') - satisfy (\c -> c == 'N' || c == 'n') - satisfy (\c -> c == 'E' || c == 'e') - manySatisfy1_ isSpace - line <- liftM read $ manySatisfy1 isDigit - manySatisfy1_ isSpace - char_ '\"' - name <- manySatisfy (/= '\"') - char_ '\"' - manySatisfy_ isSpace - char_ '#' - char_ '-' - char_ '}' - setPos (SourcePos name (line - 1)) - -isHsSymbol :: Char -> Bool -isHsSymbol '!' = True; isHsSymbol '#' = True; isHsSymbol '$' = True -isHsSymbol '%' = True; isHsSymbol '&' = True; isHsSymbol '*' = True -isHsSymbol '+' = True; isHsSymbol '.' = True; isHsSymbol '/' = True -isHsSymbol '<' = True; isHsSymbol '=' = True; isHsSymbol '>' = True -isHsSymbol '?' = True; isHsSymbol '@' = True; isHsSymbol '\\' = True -isHsSymbol '^' = True; isHsSymbol '|' = True; isHsSymbol '-' = True -isHsSymbol '~' = True -isHsSymbol _ = False - -unescapeHashes :: String -> String -unescapeHashes [] = [] -unescapeHashes ('#':'#':s) = '#' : unescapeHashes s -unescapeHashes (c:s) = c : unescapeHashes s - -lookAheadC :: Parser String -lookAheadC = liftM joinLines lookAhead - where - joinLines [] = [] - joinLines ('\\':'\n':s) = joinLines s - joinLines (c:s) = c : joinLines s - -satisfyC :: (Char -> Bool) -> Parser Char -satisfyC p = do - s <- lookAhead - case s of - '\\':'\n':_ -> do any2Chars_ `fakeOutput` []; satisfyC p - _ -> satisfy p - -charC_ :: Char -> Parser () -charC_ c = do - satisfyC (== c) `message` (show c++" expected") - return () - -anyCharC_ :: Parser () -anyCharC_ = do - satisfyC (const True) `message` "Unexpected end of file" - return () - -any2CharsC_ :: Parser () -any2CharsC_ = anyCharC_ >> anyCharC_ - -manySatisfyC :: (Char -> Bool) -> Parser String -manySatisfyC = many . satisfyC - -manySatisfyC_ :: (Char -> Bool) -> Parser () -manySatisfyC_ = many_ . satisfyC - -special :: Parser Token -special = do - manySatisfyC_ (\c -> isSpace c && c /= '\n') - s <- lookAheadC - case s of - '{':_ -> do - anyCharC_ - manySatisfyC_ isSpace - sp <- keyArg (== '\n') - charC_ '}' - return sp - _ -> keyArg (const False) - -keyArg :: (Char -> Bool) -> Parser Token -keyArg eol = do - pos <- getPos - key <- keyword `message` "hsc keyword or '{' expected" - manySatisfyC_ (\c' -> isSpace c' && c' /= '\n' || eol c') - arg <- catchOutput_ (argument eol) - return (Special pos key arg) - -keyword :: Parser String -keyword = do - c <- satisfyC (\c' -> isAlpha c' || c' == '_') - cs <- manySatisfyC (\c' -> isAlphaNum c' || c' == '_') - return (c:cs) - -argument :: (Char -> Bool) -> Parser () -argument eol = do - s <- lookAheadC - case s of - [] -> return () - c:_ | eol c -> do anyCharC_; argument eol - '\n':_ -> return () - '\"':_ -> do anyCharC_; cString '\"'; argument eol - '\'':_ -> do anyCharC_; cString '\''; argument eol - '(':_ -> do anyCharC_; nested ')'; argument eol - ')':_ -> return () - '/':'*':_ -> do any2CharsC_; cComment; argument eol - '/':'/':_ -> do - any2CharsC_; manySatisfyC_ (/= '\n'); argument eol - '[':_ -> do anyCharC_; nested ']'; argument eol - ']':_ -> return () - '{':_ -> do anyCharC_; nested '}'; argument eol - '}':_ -> return () - _:_ -> do anyCharC_; argument eol - -nested :: Char -> Parser () -nested c = do argument (== '\n'); charC_ c - -cComment :: Parser () -cComment = do - s <- lookAheadC - case s of - [] -> return () - '*':'/':_ -> do any2CharsC_ - _:_ -> do anyCharC_; cComment - -cString :: Char -> Parser () -cString quote = do - s <- lookAheadC - case s of - [] -> return () - c:_ | c == quote -> anyCharC_ - '\\':_:_ -> do any2CharsC_; cString quote - _:_ -> do anyCharC_; cString quote - ------------------------------------------------------------------------- --- Write the output files. - -splitName :: String -> (String, String) -splitName name = - case break (== '/') name of - (file, []) -> ([], file) - (dir, sep:rest) -> (dir++sep:restDir, restFile) - where - (restDir, restFile) = splitName rest - -splitExt :: String -> (String, String) -splitExt name = - case break (== '.') name of - (base, []) -> (base, []) - (base, sepRest@(sep:rest)) - | null restExt -> (base, sepRest) - | otherwise -> (base++sep:restBase, restExt) - where - (restBase, restExt) = splitExt rest - -output :: [Flag] -> String -> [Token] -> IO () -output flags name toks = do - - (outName, outDir, outBase) <- case [f | Output f <- flags] of - [] - | not (null ext) && - last ext == 'c' -> return (dir++base++init ext, dir, base) - | ext == ".hs" -> return (dir++base++"_out.hs", dir, base) - | otherwise -> return (dir++base++".hs", dir, base) - where - (dir, file) = splitName name - (base, ext) = splitExt file - [f] -> let - (dir, file) = splitName f - (base, _) = splitExt file - in return (f, dir, base) - _ -> onlyOne "output file" - - let cProgName = outDir++outBase++"_hsc_make.c" - oProgName = outDir++outBase++"_hsc_make.o" - progName = outDir++outBase++"_hsc_make" -#if defined(mingw32_HOST_OS) --- This is a real hack, but the quoting mechanism used for calling the C preprocesseor --- via GHC has changed a few times, so this seems to be the only way... :-P * * * - ++ ".exe" -#endif - outHFile = outBase++"_hsc.h" - outHName = outDir++outHFile - outCName = outDir++outBase++"_hsc.c" - - beVerbose = any (\ x -> case x of { Verbose{} -> True; _ -> False}) flags - - let execProgName - | null outDir = dosifyPath ("./" ++ progName) - | otherwise = progName - - let specials = [(pos, key, arg) | Special pos key arg <- toks] - - let needsC = any (\(_, key, _) -> key == "def") specials - needsH = needsC - - let includeGuard = map fixChar outHName - where - fixChar c | isAlphaNum c = toUpper c - | otherwise = '_' - - -- Try locating GHC..on Win32, look in the vicinity of hsc2hs. - -- Returns a native-format path - locateGhc def = do - mb <- getExecDir "bin/hsc2hs.exe" - case mb of - Nothing -> return def - Just x -> do - let ghc_path = dosifyPath (x ++ "bin/ghc.exe") - flg <- doesFileExist ghc_path - if flg - then return ghc_path - else return def - - -- On a Win32 installation we execute the hsc2hs binary directly, - -- with no --cc flags, so we'll call locateGhc here, which will - -- succeed, via getExecDir. - -- - -- On a Unix installation, we'll run the wrapper script hsc2hs.sh - -- (called plain hsc2hs in the installed tree), which will pass - -- a suitable C compiler via --cc - -- - -- The in-place installation always uses the wrapper script, - -- (called hsc2hs-inplace, generated from hsc2hs.sh) - compiler <- case [c | Compiler c <- flags] of - [] -> locateGhc "ghc" - [c] -> return c - _ -> onlyOne "compiler" - - linker <- case [l | Linker l <- flags] of - [] -> locateGhc compiler - [l] -> return l - _ -> onlyOne "linker" - - writeFile cProgName $ - concatMap outFlagHeaderCProg flags++ - concatMap outHeaderCProg specials++ - "\nint main (int argc, char *argv [])\n{\n"++ - outHeaderHs flags (if needsH then Just outHName else Nothing) specials++ - outHsLine (SourcePos name 0)++ - concatMap outTokenHs toks++ - " return 0;\n}\n" - - unless (null [() | NoCompile <- flags]) $ exitWith ExitSuccess - - - - compilerStatus <- systemL beVerbose $ - compiler++ - " -c"++ - concat [" "++f | CompFlag f <- flags]++ - " "++cProgName++ - " -o "++oProgName - case compilerStatus of - e@(ExitFailure _) -> exitWith e - _ -> return () - removeFile cProgName - - linkerStatus <- systemL beVerbose $ - linker++ - concat [" "++f | LinkFlag f <- flags]++ - " "++oProgName++ - " -o "++progName - case linkerStatus of - e@(ExitFailure _) -> exitWith e - _ -> return () - removeFile oProgName - - progStatus <- systemL beVerbose (execProgName++" >"++outName) - removeFile progName - case progStatus of - e@(ExitFailure _) -> exitWith e - _ -> return () - - when needsH $ writeFile outHName $ - "#ifndef "++includeGuard++"\n\ - \#define "++includeGuard++"\n\ - \#if " ++ - "__GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n\ - \#include \n\ - \#endif\n\ - \#include \n\ - \#if __NHC__\n\ - \#undef HsChar\n\ - \#define HsChar int\n\ - \#endif\n"++ - concatMap outFlagH flags++ - concatMap outTokenH specials++ - "#endif\n" - - when needsC $ writeFile outCName $ - "#include \""++outHFile++"\"\n"++ - concatMap outTokenC specials - -- NB. outHFile not outHName; works better when processed - -- by gcc or mkdependC. - -systemL :: Bool -> String -> IO ExitCode -systemL flg s = do - when flg (hPutStrLn stderr ("Executing: " ++ s)) - system s - -onlyOne :: String -> IO a -onlyOne what = die ("Only one "++what++" may be specified\n") - -outFlagHeaderCProg :: Flag -> String -outFlagHeaderCProg (Template t) = "#include \""++t++"\"\n" -outFlagHeaderCProg (Include f) = "#include "++f++"\n" -outFlagHeaderCProg (Define n Nothing) = "#define "++n++"\n" -outFlagHeaderCProg (Define n (Just v)) = "#define "++n++" "++v++"\n" -outFlagHeaderCProg _ = "" - -outHeaderCProg :: (SourcePos, String, String) -> String -outHeaderCProg (pos, key, arg) = case key of - "include" -> outCLine pos++"#include "++arg++"\n" - "define" -> outCLine pos++"#define "++arg++"\n" - "undef" -> outCLine pos++"#undef "++arg++"\n" - "def" -> case arg of - 's':'t':'r':'u':'c':'t':' ':_ -> outCLine pos++arg++"\n" - 't':'y':'p':'e':'d':'e':'f':' ':_ -> outCLine pos++arg++"\n" - _ -> "" - _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n" - "let" -> case break (== '=') arg of - (_, "") -> "" - (header, _:body) -> case break isSpace header of - (name, args) -> - outCLine pos++ - "#define hsc_"++name++"("++dropWhile isSpace args++") \ - \printf ("++joinLines body++");\n" - _ -> "" - where - joinLines = concat . intersperse " \\\n" . lines - -outHeaderHs :: [Flag] -> Maybe String -> [(SourcePos, String, String)] -> String -outHeaderHs flags inH toks = - "#if " ++ - "__GLASGOW_HASKELL__ && __GLASGOW_HASKELL__ < 409\n\ - \ printf (\"{-# OPTIONS -optc-D" ++ - "__GLASGOW_HASKELL__=%d #-}\\n\", \ - \__GLASGOW_HASKELL__);\n\ - \#endif\n"++ - case inH of - Nothing -> concatMap outFlag flags++concatMap outSpecial toks - Just f -> outOption ("-#include \""++f++"\"") - where - outFlag (Include f) = outOption ("-#include "++f) - outFlag (Define n Nothing) = outOption ("-optc-D"++n) - outFlag (Define n (Just v)) = outOption ("-optc-D"++n++"="++v) - outFlag _ = "" - outSpecial (pos, key, arg) = case key of - "include" -> outOption ("-#include "++arg) - "define" | goodForOptD arg -> outOption ("-optc-D"++toOptD arg) - | otherwise -> "" - _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n" - _ -> "" - goodForOptD arg = case arg of - "" -> True - c:_ | isSpace c -> True - '(':_ -> False - _:s -> goodForOptD s - toOptD arg = case break isSpace arg of - (name, "") -> name - (name, _:value) -> name++'=':dropWhile isSpace value - outOption s = " printf (\"{-# OPTIONS %s #-}\\n\", \""++ - showCString s++"\");\n" - -outTokenHs :: Token -> String -outTokenHs (Text pos txt) = - case break (== '\n') txt of - (allTxt, []) -> outText allTxt - (first, _:rest) -> - outText (first++"\n")++ - outHsLine pos++ - outText rest - where - outText s = " fputs (\""++showCString s++"\", stdout);\n" -outTokenHs (Special pos key arg) = - case key of - "include" -> "" - "define" -> "" - "undef" -> "" - "def" -> "" - _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n" - "let" -> "" - "enum" -> outCLine pos++outEnum arg - _ -> outCLine pos++" hsc_"++key++" ("++arg++");\n" - -outEnum :: String -> String -outEnum arg = - case break (== ',') arg of - (_, []) -> "" - (t, _:afterT) -> case break (== ',') afterT of - (f, afterF) -> let - enums [] = "" - enums (_:s) = case break (== ',') s of - (enum, rest) -> let - this = case break (== '=') $ dropWhile isSpace enum of - (name, []) -> - " hsc_enum ("++t++", "++f++", \ - \hsc_haskellize (\""++name++"\"), "++ - name++");\n" - (hsName, _:cName) -> - " hsc_enum ("++t++", "++f++", \ - \printf (\"%s\", \""++hsName++"\"), "++ - cName++");\n" - in this++enums rest - in enums afterF - -outFlagH :: Flag -> String -outFlagH (Include f) = "#include "++f++"\n" -outFlagH (Define n Nothing) = "#define "++n++"\n" -outFlagH (Define n (Just v)) = "#define "++n++" "++v++"\n" -outFlagH _ = "" - -outTokenH :: (SourcePos, String, String) -> String -outTokenH (pos, key, arg) = - case key of - "include" -> outCLine pos++"#include "++arg++"\n" - "define" -> outCLine pos++"#define " ++arg++"\n" - "undef" -> outCLine pos++"#undef " ++arg++"\n" - "def" -> outCLine pos++case arg of - 's':'t':'r':'u':'c':'t':' ':_ -> arg++"\n" - 't':'y':'p':'e':'d':'e':'f':' ':_ -> arg++"\n" - 'i':'n':'l':'i':'n':'e':' ':_ -> - "#ifdef __GNUC__\n\ - \extern\n\ - \#endif\n"++ - arg++"\n" - _ -> "extern "++header++";\n" - where header = takeWhile (\c -> c /= '{' && c /= '=') arg - _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n" - _ -> "" - -outTokenC :: (SourcePos, String, String) -> String -outTokenC (pos, key, arg) = - case key of - "def" -> case arg of - 's':'t':'r':'u':'c':'t':' ':_ -> "" - 't':'y':'p':'e':'d':'e':'f':' ':_ -> "" - 'i':'n':'l':'i':'n':'e':' ':arg' -> - case span (\c -> c /= '{' && c /= '=') arg' of - (header, body) -> - outCLine pos++ - "#ifndef __GNUC__\n\ - \extern inline\n\ - \#endif\n"++ - header++ - "\n#ifndef __GNUC__\n\ - \;\n\ - \#else\n"++ - body++ - "\n#endif\n" - _ -> outCLine pos++arg++"\n" - _ | conditional key -> outCLine pos++"#"++key++" "++arg++"\n" - _ -> "" - -conditional :: String -> Bool -conditional "if" = True -conditional "ifdef" = True -conditional "ifndef" = True -conditional "elif" = True -conditional "else" = True -conditional "endif" = True -conditional "error" = True -conditional "warning" = True -conditional _ = False - -outCLine :: SourcePos -> String -outCLine (SourcePos name line) = - "#line "++show line++" \""++showCString (snd (splitName name))++"\"\n" - -outHsLine :: SourcePos -> String -outHsLine (SourcePos name line) = - " hsc_line ("++show (line + 1)++", \""++ - showCString (snd (splitName name))++"\");\n" - -showCString :: String -> String -showCString = concatMap showCChar - where - showCChar '\"' = "\\\"" - showCChar '\'' = "\\\'" - showCChar '?' = "\\?" - showCChar '\\' = "\\\\" - showCChar c | c >= ' ' && c <= '~' = [c] - showCChar '\a' = "\\a" - showCChar '\b' = "\\b" - showCChar '\f' = "\\f" - showCChar '\n' = "\\n\"\n \"" - showCChar '\r' = "\\r" - showCChar '\t' = "\\t" - showCChar '\v' = "\\v" - showCChar c = ['\\', - intToDigit (ord c `quot` 64), - intToDigit (ord c `quot` 8 `mod` 8), - intToDigit (ord c `mod` 8)] - - - ------------------------------------------ --- Cut and pasted from ghc/compiler/SysTools --- Convert paths foo/baz to foo\baz on Windows - -dosifyPath :: String -> String -#if defined(mingw32_HOST_OS) -dosifyPath xs = subst '/' '\\' xs - -unDosifyPath :: String -> String -unDosifyPath xs = subst '\\' '/' xs - -subst :: Eq a => a -> a -> [a] -> [a] -subst a b ls = map (\ x -> if x == a then b else x) ls - -getExecDir :: String -> IO (Maybe String) --- (getExecDir cmd) returns the directory in which the current --- executable, which should be called 'cmd', is running --- So if the full path is /a/b/c/d/e, and you pass "d/e" as cmd, --- you'll get "/a/b/c" back as the result -getExecDir cmd - = allocaArray len $ \buf -> do - ret <- getModuleFileName nullPtr buf len - if ret == 0 then return Nothing - else do s <- peekCString buf - return (Just (reverse (drop (length cmd) - (reverse (unDosifyPath s))))) - where - len = 2048::Int -- Plenty, PATH_MAX is 512 under Win32. - -foreign import stdcall unsafe "GetModuleFileNameA" - getModuleFileName :: Ptr () -> CString -> Int -> IO Int32 - -#else -dosifyPath xs = xs - -getExecDir :: String -> IO (Maybe String) -getExecDir _ = return Nothing -#endif -- 1.7.10.4