mirror of
https://github.com/autc04/Retro68.git
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209 lines
8.1 KiB
Haskell
209 lines
8.1 KiB
Haskell
-- Copyright 2012 Wolfgang Thaller.
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--
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-- This file is part of Retro68.
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--
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-- Retro68 is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- Retro68 is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with Retro68. If not, see <http://www.gnu.org/licenses/>.
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module Main where
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import Text.ParserCombinators.Parsec
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import Text.ParserCombinators.Parsec.Language
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import Text.ParserCombinators.Parsec.Token
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import System.Directory
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import System.FilePath
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import Control.Monad(guard)
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import Data.List(isSuffixOf)
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import qualified Control.Exception
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import System.IO
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import qualified Text.PrettyPrint.HughesPJ as PP
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import Text.PrettyPrint.HughesPJ((<+>),(<>),($$),($+$))
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import Data.Char
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import Numeric
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import Data.Maybe(isJust)
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import Control.Monad.State
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import qualified Data.Map as Map
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import System.Environment(getArgs)
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data CallingConvention = Pascal | CCall
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deriving(Show, Eq)
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data Item = CharItem Char
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| IgnoredItem
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| FunctionItem CallingConvention String String [String] [String] [Integer] (Maybe ParameterRegs)
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| PragmaParameterItem String ParameterRegs
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deriving(Show)
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type Register = String
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data ParameterRegs = ParameterRegs (Maybe Register) [Register]
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deriving(Show)
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tp = makeTokenParser javaStyle
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item = (char '\r' >> return (CharItem '\n'))
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<|> try externApiDeclaration
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-- <|> try (string "= 0x4E90" >> return IgnoredItem)
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-- <|> try (string "= 0x4E91" >> return IgnoredItem)
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<|> try pragmaParameter
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<|> fmap CharItem anyChar
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balancedText stopAtComma = fmap (foldr ($) "") $
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many (fmap (++) paranthesized <|> fmap (:) (noneOf (if stopAtComma then "()," else "()")))
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where paranthesized = char '(' >> balancedText False >>= \xs -> char ')' >> return ('(' : xs ++ ")")
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isIDChar '_' = True
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isIDChar c = isAlphaNum c
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trim = dropWhile isSpace . reverse . dropWhile isSpace . reverse
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cleanup = unwords . words . trim
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returnType = do
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t <- identifier tp
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ptrs <- many (reservedOp tp "*" >> return '*')
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return $ t ++ ptrs
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externApiDeclaration = do
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(cconv, rettype) <-
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(reserved tp "EXTERN_API" >> (fmap ((,) Pascal) $ fmap trim $ parens tp (balancedText False)))
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<|> (reserved tp "EXTERN_API_C" >> (fmap ((,) CCall) $ fmap trim $ parens tp (balancedText False)))
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<|> (reserved tp "pascal" >> fmap ((,) Pascal) returnType)
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name <- identifier tp
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arguments <- fmap (map cleanup) $ parens tp (commaSep tp $ balancedText True)
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let hexwords = commaSep tp hexword
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macroinline = do
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inlinekey <- identifier tp
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guard ("WORDINLINE" `isSuffixOf` inlinekey)
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parens tp hexwords
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plaininline = do
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reservedOp tp "="
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braces tp hexwords
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inlines <- macroinline <|> plaininline <|> return []
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semi tp
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let arguments' | arguments == ["void"] = []
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| otherwise = arguments
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argumentNames = map (trim . reverse . takeWhile isIDChar . reverse . trim) arguments'
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argumentTypes = map (trim . reverse . dropWhile isIDChar . reverse . trim) arguments'
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return $ FunctionItem cconv rettype name argumentTypes argumentNames inlines Nothing
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pragmaParameter = do
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reservedOp tp "#"
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reserved tp "pragma"
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reserved tp "parameter"
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retval <- optionMaybe reg
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name <- identifier tp
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args <- parens tp (commaSep tp reg)
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-- args <- option [] $ parens tp (fmap return $ reg)
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-- let args = []
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return $ PragmaParameterItem name (ParameterRegs retval args)
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reg = (reserved tp "__A0" >> return "%%a0")
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<|>(reserved tp "__A1" >> return "%%a1")
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<|>(reserved tp "__A2" >> return "%%a2")
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<|>(reserved tp "__D0" >> return "%%d0")
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<|>(reserved tp "__D1" >> return "%%d1")
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pprParameterRegs (ParameterRegs mbRet args)
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= maybe PP.empty PP.text mbRet
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<+> PP.parens (
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PP.hsep $ PP.punctuate PP.comma $ map PP.text args
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)
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hexword = integer tp
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outputItem (CharItem c) = [c]
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-- outputItem (FunctionItem cconv rettype name argumentTypes argumentNames words) = "<fun>"
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outputItem (FunctionItem cconv rettype name argumentTypes argumentNames words mbParamRegs)
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= let
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magic = PP.text "__magic_inline_" <> PP.hcat (PP.punctuate (PP.char '_') (map (PP.text . hexword) words))
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hexword w = replicate (4 - length s) '0' ++ s where s = showHex w ""
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cconvAttr = case (mbParamRegs,cconv) of
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(Just regs, _) -> PP.text "__attribute__((__regparam__(" <> PP.doubleQuotes regstr <> PP.text ")))"
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where regstr = pprParameterRegs regs
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(Nothing, Pascal) | not (null words) -> PP.text "__attribute__((__pascal__))"
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(Nothing, _) -> PP.empty
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isInline = not (null words)
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magicAttr | isInline = PP.text "__attribute__((__magicinline__))"
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| otherwise = PP.empty
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inlineMagic | isInline = PP.text("__asm__") <> PP.parens ( PP.doubleQuotes magic )
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| otherwise = PP.empty
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in PP.render $
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PP.text rettype <+> cconvAttr <+> magicAttr <+> PP.text name
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<> PP.parens (PP.hsep $ PP.punctuate PP.comma $ zipWith (\t n -> PP.text t <+> PP.text n) argumentTypes argumentNames)
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<+> inlineMagic
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<> PP.semi <> PP.text "\n"
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outputItem _ = ""
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collectPragmas xs = evalState (mapM doit xs) Map.empty
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where
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doit x@(PragmaParameterItem name params) = modify (Map.insert name params) >> return x
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doit (FunctionItem cconv rettype name argumentTypes argumentNames inlines _) = do
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m <- get
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return $ FunctionItem cconv rettype name argumentTypes argumentNames inlines (Map.lookup name m)
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doit x = return x
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processFile inputDir outputDir file
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| isLower (head file) = putStrLn $ "Skipping " ++ file ++ " (standard library or MPW runtime)"
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| ".h" `isSuffixOf` file = do
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print $ (outputDir </> takeFileName file)
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-- readFile (inputDir </> file)
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f <- openFile (inputDir </> file) ReadMode
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hSetEncoding f latin1
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txt <- hGetContents f
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let parseResult = parse (many item) file txt
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case parseResult of
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Right items -> do
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outf <- openFile (outputDir </> file) WriteMode
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hSetEncoding outf latin1
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let processed = concatMap outputItem $ collectPragmas $ items
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if (file == "ConditionalMacros.h")
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then do
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hPutStrLn outf $ unlines [
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"#define TARGET_CPU_68K 1",
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"#define TARGET_OS_MAC 1",
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"#define TARGET_RT_MAC_CFM 0",
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"#define TARGET_RT_MAC_MACHO 0",
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"#define TYPE_LONGLONG 1",
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"#define pascal",
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"#ifdef __cplusplus",
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"#define TYPE_BOOL 1",
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"#endif"
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]
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hPutStr outf $ unlines $
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map (\line -> if line == "#elif defined(__GNUC__)"
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then "#elif 0"
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else line) $
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lines $ processed
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else
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hPutStr outf $ processed
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hClose outf
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Left err -> putStrLn $ file ++ ": " ++ show err
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| otherwise = do
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putStrLn $ "Unknown: " ++ file
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main = do
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[inputDir,outputDir] <- getArgs
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files <- getDirectoryContents inputDir
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Control.Exception.try (createDirectory outputDir) :: IO (Either Control.Exception.IOException ())
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mapM (processFile inputDir outputDir) files
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return ()
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