tools/pas2c/PascalParser.hs
author unc0rr
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Treat "out" as "var"
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module PascalParser (
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    pascalUnit,
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    mainResultInit
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    )
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    where
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import Text.Parsec
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import Text.Parsec.Token
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import Text.Parsec.Expr
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import Control.Monad
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import Data.Maybe
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import Data.Char
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import PascalBasics
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import PascalUnitSyntaxTree
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mainResultInit :: Phrase
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mainResultInit = (\(Right a) -> a) $ parse phrase "<built-in>" "main:= 0;"
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knownTypes :: [String]
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knownTypes = ["shortstring", "ansistring", "char", "byte"]
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pascalUnit :: Parsec String u PascalUnit
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pascalUnit = do
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    comments
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    u <- choice [program, unit, systemUnit, redoUnit]
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    comments
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    return u
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iD :: Parsec String u Identifier
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iD = do
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    i <- identifier pas
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    comments
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    when (i == "not") $ unexpected "'not' used as an identifier"
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    return $ Identifier i BTUnknown
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unit :: Parsec String u PascalUnit
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unit = do
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    string' "unit" >> comments
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    name <- iD
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    void $ semi pas
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    comments
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    int <- interface
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    impl <- implementation
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    comments
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    return $ Unit name int impl Nothing Nothing
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reference :: Parsec String u Reference
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reference = buildExpressionParser table term <?> "reference"
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    where
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    term = comments >> choice [
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        parens pas (liftM RefExpression expression >>= postfixes) >>= postfixes
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        , try $ typeCast >>= postfixes
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        , char' '@' >> liftM Address reference >>= postfixes
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        , liftM SimpleReference iD >>= postfixes
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        ] <?> "simple reference"
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    table = [
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        ]
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    postfixes r = many postfix >>= return . foldl (flip ($)) r
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    postfix = choice [
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            parens pas (option [] parameters) >>= return . FunCall
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          , char' '^' >> return Dereference
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          , (brackets pas) (commaSep1 pas $ expression) >>= return . ArrayElement
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          , (char' '.' >> notFollowedBy (char' '.')) >> liftM (flip RecordField) reference
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        ]
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    typeCast = do
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        t <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) knownTypes
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        e <- parens pas expression
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        comments
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        return $ TypeCast (Identifier t BTUnknown) e
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varsDecl1, varsDecl :: Bool -> Parsec String u [TypeVarDeclaration]
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varsDecl1 = varsParser sepEndBy1
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varsDecl = varsParser sepEndBy
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varsParser ::
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    (Parsec String u TypeVarDeclaration
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        -> Parsec String u String
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        -> Parsec
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            String u [TypeVarDeclaration])
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    -> Bool
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    -> Parsec
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            String u [TypeVarDeclaration]
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varsParser m endsWithSemi = do
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    vs <- m (aVarDecl endsWithSemi) (semi pas)
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    return vs
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aVarDecl :: Bool -> Parsec String u TypeVarDeclaration
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aVarDecl endsWithSemi = do
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    isVar <- liftM (\i -> i == Just "var" || i == Just "out") $
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        if not endsWithSemi then
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            optionMaybe $ choice [
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                try $ string "var"
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                , try $ string "const"
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                , try $ string "out"
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                ]
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            else
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                return Nothing
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    comments
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    ids <- do
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        i <- (commaSep1 pas) $ (try iD <?> "variable declaration")
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        char' ':'
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        return i
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    comments
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    t <- typeDecl <?> "variable type declaration"
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    comments
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    initialization <- option Nothing $ do
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        char' '='
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        comments
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        e <- initExpression
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        comments
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        return (Just e)
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    return $ VarDeclaration isVar False (ids, t) initialization
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constsDecl :: Parsec String u [TypeVarDeclaration]
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constsDecl = do
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    vs <- many1 (try (aConstDecl >>= \i -> semi pas >> return i) >>= \i -> comments >> return i)
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    comments
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    return vs
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    where
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    aConstDecl = do
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        comments
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        i <- iD
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        t <- optionMaybe $ do
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            char' ':'
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            comments
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            t <- typeDecl
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            comments
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            return t
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        char' '='
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        comments
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        e <- initExpression
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        comments
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        return $ VarDeclaration False (isNothing t) ([i], fromMaybe (DeriveType e) t) (Just e)
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typeDecl :: Parsec String u TypeDecl
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typeDecl = choice [
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    char' '^' >> typeDecl >>= return . PointerTo
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    , try (string' "shortstring") >> return String
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    , try (string' "string") >> optionMaybe (brackets pas $ integer pas) >> return String
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    , try (string' "ansistring") >> optionMaybe (brackets pas $ integer pas) >> return AString
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    , arrayDecl
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    , recordDecl
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    , setDecl
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    , functionType
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    , sequenceDecl >>= return . Sequence
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    , try iD >>= return . SimpleType
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    , rangeDecl >>= return . RangeType
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   154
    ] <?> "type declaration"
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   155
    where
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   156
    arrayDecl = do
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   157
        try $ do
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   158
            optional $ (try $ string' "packed") >> comments
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   159
            string' "array"
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        comments
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   161
        r <- option [] $ do
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   162
            char' '['
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   163
            r <- commaSep pas rangeDecl
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   164
            char' ']'
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   165
            comments
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   166
            return r
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   167
        string' "of"
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unC0Rr
parents:
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   168
        comments
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   169
        t <- typeDecl
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   170
        if null r then
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            return $ ArrayDecl Nothing t
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   172
            else
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            return $ foldr (\a b -> ArrayDecl (Just a) b) (ArrayDecl (Just $ head r) t) (tail r)
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   174
    recordDecl = do
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   175
        try $ do
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   176
            optional $ (try $ string' "packed") >> comments
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            string' "record"
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        comments
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        vs <- varsDecl True
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   180
        union <- optionMaybe $ do
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   181
            string' "case"
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   182
            comments
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            void $ iD
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   184
            comments
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   185
            string' "of"
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parents: 6417
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   186
            comments
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   187
            many unionCase
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   188
        string' "end"
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   189
        return $ RecordType vs union
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   190
    setDecl = do
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   191
        try $ string' "set" >> void space
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   192
        comments
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   193
        string' "of"
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   194
        comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
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   195
        liftM Set typeDecl
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   196
    unionCase = do
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   197
        void $ try $ commaSep pas $ (void $ iD) <|> (void $ integer pas)
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   198
        char' ':'
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   199
        comments
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   200
        u <- parens pas $ varsDecl True
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   201
        char' ';'
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   202
        comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
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   203
        return u
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   204
    sequenceDecl = (parens pas) $ (commaSep pas) (iD >>= \i -> optional (spaces >> char' '=' >> spaces >> integer pas) >> return i)
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   205
    functionType = do
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   206
        fp <- try (string "function") <|> try (string "procedure")
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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   207
        comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
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   208
        vs <- option [] $ parens pas $ varsDecl False
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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   209
        comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
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   210
        ret <- if (fp == "function") then do
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   211
            char' ':'
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   212
            comments
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unc0rr
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   213
            ret <- typeDecl
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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   214
            comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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   215
            return ret
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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diff changeset
   216
            else
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8fadeefdd352 Just some further work
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   217
            return VoidType
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   218
        optional $ try $ char' ';' >> comments >> string' "cdecl"
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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   219
        comments
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   220
        return $ FunctionType ret vs
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unc0rr
parents: 4353
diff changeset
   221
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   222
typesDecl :: Parsec String u [TypeVarDeclaration]
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   223
typesDecl = many (aTypeDecl >>= \t -> comments >> return t)
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   224
    where
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   225
    aTypeDecl = do
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   226
        i <- try $ do
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   227
            i <- iD <?> "type declaration"
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   228
            comments
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   229
            char' '='
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   230
            return i
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   231
        comments
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   232
        t <- typeDecl
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   233
        comments
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   234
        void $ semi pas
6277
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   235
        comments
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   236
        return $ TypeDeclaration i t
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11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
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   237
10113
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   238
rangeDecl :: Parsec String u Range
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unc0rr
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   239
rangeDecl = choice [
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   240
    try $ rangeft
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   241
    , iD >>= return . Range
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   242
    ] <?> "range declaration"
6277
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   243
    where
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   244
    rangeft = do
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14718b2685a3 Recognize some built-in functions
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   245
    e1 <- initExpression
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   246
    string' ".."
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   247
    e2 <- initExpression
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unc0rr
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   248
    return $ RangeFromTo e1 e2
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   249
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   250
typeVarDeclaration :: Bool -> Parsec String u [TypeVarDeclaration]
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   251
typeVarDeclaration isImpl = (liftM concat . many . choice) [
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   252
    varSection,
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   253
    constSection,
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   254
    typeSection,
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   255
    funcDecl,
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   256
    operatorDecl
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   257
    ]
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
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   258
    where
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   259
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   260
    fixInit v = concat $ map (\x -> case x of
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   261
                    VarDeclaration a b (ids, t) c ->
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   262
                        let typeId = (Identifier ((\(Identifier i _) -> i) (head ids) ++ "_tt") BTUnknown) in
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   263
                        let res =  [TypeDeclaration typeId t, VarDeclaration a b (ids, (SimpleType typeId)) c] in
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   264
                        case t of
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   265
                            RecordType _ _ -> res -- create a separated type declaration
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   266
                            ArrayDecl _ _ -> res
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   267
                            _ -> [x]
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   268
                    _ -> error ("checkInit:\n" ++ (show v))) v
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   269
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   270
    varSection = do
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   271
        try $ string' "var"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
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   272
        comments
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unc0rr
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   273
        v <- varsDecl1 True <?> "variable declaration"
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   274
        comments
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   275
        return $ fixInit v
6275
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unc0rr
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   276
f1b4f37dba22 Many improvements to the parser
unc0rr
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diff changeset
   277
    constSection = do
10113
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unc0rr
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   278
        try $ string' "const"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
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diff changeset
   279
        comments
6443
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unc0rr
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   280
        c <- constsDecl <?> "const declaration"
6275
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unc0rr
parents: 6272
diff changeset
   281
        comments
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
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   282
        return $ fixInit c
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   283
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   284
    typeSection = do
10113
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unc0rr
parents: 10111
diff changeset
   285
        try $ string' "type"
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   286
        comments
6443
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unc0rr
parents: 6426
diff changeset
   287
        t <- typesDecl <?> "type declaration"
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
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   288
        comments
627b5752733a A try to improve parser move (has regressions)
unc0rr
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   289
        return t
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   290
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   291
    operatorDecl = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   292
        try $ string' "operator"
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   293
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   294
        i <- manyTill anyChar space
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   295
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   296
        vs <- parens pas $ varsDecl False
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   297
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   298
        rid <- iD
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
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parents: 6426
diff changeset
   299
        comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   300
        char' ':'
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   301
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   302
        ret <- typeDecl
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   303
        comments
10113
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unc0rr
parents: 10111
diff changeset
   304
        -- return ret
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   305
        -- ^^^^^^^^^^ wth was this???
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   306
        char' ';'
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   307
        comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   308
        forward <- liftM isJust $ optionMaybe (try (string' "forward;") >> comments)
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   309
        inline <- liftM (any (== "inline;")) $ many functionDecorator
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   310
        b <- if isImpl && (not forward) then
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   311
                liftM Just functionBody
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   312
                else
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   313
                return Nothing
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   314
        return $ [OperatorDeclaration i rid inline ret vs b]
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   315
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   316
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   317
    funcDecl = do
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   318
        fp <- try (string "function") <|> try (string "procedure")
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   319
        comments
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   320
        i <- iD
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   321
        vs <- option [] $ parens pas $ varsDecl False
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   322
        comments
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   323
        ret <- if (fp == "function") then do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   324
            char' ':'
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   325
            comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   326
            ret <- typeDecl
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   327
            comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   328
            return ret
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   329
            else
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6826
diff changeset
   330
            return VoidType
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   331
        char' ';'
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   332
        comments
6425
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   333
        forward <- liftM isJust $ optionMaybe (try (string "forward;") >> comments)
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   334
        decorators <- many functionDecorator
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   335
        let inline = any (== "inline;") decorators
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   336
            overload = any (== "overload;") decorators
10129
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   337
            external = any (== "external;") decorators
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   338
        -- TODO: don't mangle external functions names (and remove fpcrtl.h defines hacks)
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   339
        b <- if isImpl && (not forward) && (not external) then
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   340
                liftM Just functionBody
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   341
                else
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   342
                return Nothing
10129
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   343
        return $ [FunctionDeclaration i inline overload external ret vs b]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   344
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   345
    functionDecorator = do
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   346
        d <- choice [
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   347
            try $ string "inline;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   348
            , try $ caseInsensitiveString "cdecl;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   349
            , try $ string "overload;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   350
            , try $ string "export;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   351
            , try $ string "varargs;"
10129
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   352
            , try (string' "external") >> comments >> iD >> comments >>
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   353
                optional (string' "name" >> comments >> stringLiteral pas) >> string' ";" >> return "external;"
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   354
            ]
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   355
        comments
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   356
        return d
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   357
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   358
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   359
program :: Parsec String u PascalUnit
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   360
program = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   361
    string' "program"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   362
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   363
    name <- iD
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   364
    (char' ';')
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   365
    comments
6417
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   366
    comments
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   367
    u <- uses
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   368
    comments
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   369
    tv <- typeVarDeclaration True
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   370
    comments
6417
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   371
    p <- phrase
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   372
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   373
    char' '.'
6417
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   374
    comments
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   375
    return $ Program name (Implementation u (TypesAndVars tv)) p
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   376
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   377
interface :: Parsec String u Interface
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   378
interface = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   379
    string' "interface"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   380
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   381
    u <- uses
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   382
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   383
    tv <- typeVarDeclaration False
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   384
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   385
    return $ Interface u (TypesAndVars tv)
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   386
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   387
implementation :: Parsec String u Implementation
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   388
implementation = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   389
    string' "implementation"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   390
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   391
    u <- uses
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   392
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   393
    tv <- typeVarDeclaration True
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   394
    string' "end."
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   395
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   396
    return $ Implementation u (TypesAndVars tv)
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   397
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   398
expression :: Parsec String u Expression
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   399
expression = do
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   400
    buildExpressionParser table term <?> "expression"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   401
    where
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   402
    term = comments >> choice [
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6512
diff changeset
   403
        builtInFunction expression >>= \(n, e) -> return $ BuiltInFunCall e (SimpleReference (Identifier n BTUnknown))
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   404
        , try (parens pas $ expression >>= \e -> notFollowedBy (comments >> char' '.') >> return e)
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   405
        , brackets pas (commaSep pas iD) >>= return . SetExpression
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   406
        , try $ integer pas >>= \i -> notFollowedBy (char' '.') >> (return . NumberLiteral . show) i
6452
7c6f9b6672dc More work on the parser
unc0rr
parents: 6450
diff changeset
   407
        , float pas >>= return . FloatLiteral . show
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   408
        , try $ integer pas >>= return . NumberLiteral . show
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   409
        , try (string' "_S" >> stringLiteral pas) >>= return . StringLiteral
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   410
        , try (string' "_P" >> stringLiteral pas) >>= return . PCharLiteral
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   411
        , stringLiteral pas >>= return . strOrChar
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   412
        , try (string' "#$") >> many hexDigit >>= \c -> comments >> return (HexCharCode c)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   413
        , char' '#' >> many digit >>= \c -> comments >> return (CharCode c)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   414
        , char' '$' >> many hexDigit >>=  \h -> comments >> return (HexNumber h)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   415
        --, char' '-' >> expression >>= return . PrefixOp "-"
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   416
        , char' '-' >> reference >>= return . PrefixOp "-" . Reference
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   417
        , (try $ string' "not" >> notFollowedBy comments) >> unexpected "'not'"
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   418
        , try $ string' "nil" >> return Null
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   419
        , reference >>= return . Reference
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   420
        ] <?> "simple expression"
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   421
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   422
    table = [
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   423
          [  Prefix (reservedOp pas "not">> return (PrefixOp "not"))
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   424
           , Prefix (try (char' '-') >> return (PrefixOp "-"))]
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   425
           ,
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   426
          [  Infix (char' '*' >> return (BinOp "*")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   427
           , Infix (char' '/' >> return (BinOp "/")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   428
           , Infix (try (string' "div") >> return (BinOp "div")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   429
           , Infix (try (string' "mod") >> return (BinOp "mod")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   430
           , Infix (try (string' "in") >> return (BinOp "in")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   431
           , Infix (try $ string' "and" >> return (BinOp "and")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   432
           , Infix (try $ string' "shl" >> return (BinOp "shl")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   433
           , Infix (try $ string' "shr" >> return (BinOp "shr")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   434
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   435
        , [  Infix (char' '+' >> return (BinOp "+")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   436
           , Infix (char' '-' >> return (BinOp "-")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   437
           , Infix (try $ string' "or" >> return (BinOp "or")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   438
           , Infix (try $ string' "xor" >> return (BinOp "xor")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   439
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   440
        , [  Infix (try (string' "<>") >> return (BinOp "<>")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   441
           , Infix (try (string' "<=") >> return (BinOp "<=")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   442
           , Infix (try (string' ">=") >> return (BinOp ">=")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   443
           , Infix (char' '<' >> return (BinOp "<")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   444
           , Infix (char' '>' >> return (BinOp ">")) AssocNone
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   445
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   446
        {-, [  Infix (try $ string' "shl" >> return (BinOp "shl")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   447
             , Infix (try $ string' "shr" >> return (BinOp "shr")) AssocNone
7043
7c080e5ac8d0 Some work to make more units compile after conversion to c
unc0rr
parents: 6897
diff changeset
   448
          ]
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   449
        , [
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   450
             Infix (try $ string' "or" >> return (BinOp "or")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   451
           , Infix (try $ string' "xor" >> return (BinOp "xor")) AssocLeft
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   452
          ]-}
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   453
        , [
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   454
             Infix (char' '=' >> return (BinOp "=")) AssocNone
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   455
          ]
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   456
        ]
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   457
    strOrChar [a] = CharCode . show . ord $ a
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   458
    strOrChar a = StringLiteral a
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   459
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   460
phrasesBlock :: Parsec String u Phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   461
phrasesBlock = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   462
    try $ string' "begin"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   463
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   464
    p <- manyTill phrase (try $ string' "end" >> notFollowedBy alphaNum)
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   465
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   466
    return $ Phrases p
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   467
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   468
phrase :: Parsec String u Phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   469
phrase = do
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   470
    o <- choice [
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   471
        phrasesBlock
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   472
        , ifBlock
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   473
        , whileCycle
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   474
        , repeatCycle
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   475
        , switchCase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   476
        , withBlock
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   477
        , forCycle
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   478
        , (try $ reference >>= \r -> string' ":=" >> return r) >>= \r -> comments >> expression >>= return . Assignment r
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6891
diff changeset
   479
        , builtInFunction expression >>= \(n, e) -> return $ BuiltInFunctionCall e (SimpleReference (Identifier n BTUnknown))
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   480
        , procCall
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   481
        , char' ';' >> comments >> return NOP
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   482
        ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   483
    optional $ char' ';'
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   484
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   485
    return o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   486
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   487
ifBlock :: Parsec String u Phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   488
ifBlock = do
7642
91fce82f9c6f fix parsing of 'if': identifiers can also contain underscores
sheepluva
parents: 7641
diff changeset
   489
    try $ string "if" >> notFollowedBy (alphaNum <|> char '_')
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   490
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   491
    e <- expression
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   492
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   493
    string' "then"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   494
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   495
    o1 <- phrase
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   496
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   497
    o2 <- optionMaybe $ do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   498
        try $ string' "else" >> void space
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   499
        comments
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   500
        o <- option NOP phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   501
        comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   502
        return o
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   503
    return $ IfThenElse e o1 o2
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   504
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   505
whileCycle :: Parsec String u Phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   506
whileCycle = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   507
    try $ string' "while"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   508
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   509
    e <- expression
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   510
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   511
    string' "do"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   512
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   513
    o <- phrase
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   514
    return $ WhileCycle e o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   515
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   516
withBlock :: Parsec String u Phrase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   517
withBlock = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   518
    try $ string' "with" >> void space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   519
    comments
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   520
    rs <- (commaSep1 pas) reference
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   521
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   522
    string' "do"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   523
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   524
    o <- phrase
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   525
    return $ foldr WithBlock o rs
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   526
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   527
repeatCycle :: Parsec String u Phrase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   528
repeatCycle = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   529
    try $ string' "repeat" >> void space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   530
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   531
    o <- many phrase
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   532
    string' "until"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   533
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   534
    e <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   535
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   536
    return $ RepeatCycle e o
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   537
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   538
forCycle :: Parsec String u Phrase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   539
forCycle = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   540
    try $ string' "for" >> void space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   541
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   542
    i <- iD
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   543
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   544
    string' ":="
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   545
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   546
    e1 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   547
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   548
    up <- liftM (== Just "to") $
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   549
            optionMaybe $ choice [
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   550
                try $ string "to"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   551
                , try $ string "downto"
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   552
                ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   553
    --choice [string' "to", string' "downto"]
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   554
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   555
    e2 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   556
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   557
    string' "do"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   558
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   559
    p <- phrase
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   560
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   561
    return $ ForCycle i e1 e2 p up
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   562
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   563
switchCase :: Parsec String u Phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   564
switchCase = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   565
    try $ string' "case"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   566
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   567
    e <- expression
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   568
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   569
    string' "of"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   570
    comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   571
    cs <- many1 aCase
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   572
    o2 <- optionMaybe $ do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   573
        try $ string' "else" >> notFollowedBy alphaNum
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   574
        comments
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   575
        o <- many phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   576
        comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   577
        return o
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   578
    string' "end"
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   579
    comments
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   580
    return $ SwitchCase e cs o2
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   581
    where
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   582
    aCase = do
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   583
        e <- (commaSep pas) $ (liftM InitRange rangeDecl <|> initExpression)
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   584
        comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   585
        char' ':'
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   586
        comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   587
        p <- phrase
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   588
        comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   589
        return (e, p)
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   590
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   591
procCall :: Parsec String u Phrase
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   592
procCall = do
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   593
    r <- reference
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   594
    p <- option [] $ (parens pas) parameters
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   595
    return $ ProcCall r p
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   596
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   597
parameters :: Parsec String u [Expression]
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   598
parameters = (commaSep pas) expression <?> "parameters"
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   599
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   600
functionBody :: Parsec String u (TypesAndVars, Phrase)
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   601
functionBody = do
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   602
    tv <- typeVarDeclaration True
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   603
    comments
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   604
    p <- phrasesBlock
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   605
    char' ';'
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   606
    comments
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   607
    return (TypesAndVars tv, p)
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   608
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   609
uses :: Parsec String u Uses
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   610
uses = liftM Uses (option [] u)
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   611
    where
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   612
        u = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   613
            string' "uses"
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   614
            comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   615
            ulist <- (iD >>= \i -> comments >> return i) `sepBy1` (char' ',' >> comments)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   616
            char' ';'
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   617
            comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   618
            return ulist
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   619
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   620
initExpression :: Parsec String u InitExpression
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   621
initExpression = buildExpressionParser table term <?> "initialization expression"
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   622
    where
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   623
    term = comments >> choice [
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   624
        liftM (uncurry BuiltInFunction) $ builtInFunction initExpression
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   625
        , try $ brackets pas (commaSep pas $ initExpression) >>= return . InitSet
9954
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   626
        , try $ parens pas (commaSep pas $ initExpression) >>= \ia -> when ((notRecord $ head ia) && (null $ tail ia)) mzero >> return (InitArray ia)
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   627
        , try $ parens pas (sepEndBy recField (char' ';' >> comments)) >>= return . InitRecord
7690
6ef121a80cb0 Treat init expression in parens as just expression instead of array initializer when there's only one entry in expressions list
unc0rr
parents: 7642
diff changeset
   628
        , parens pas initExpression
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   629
        , try $ integer pas >>= \i -> notFollowedBy (char' '.') >> (return . InitNumber . show) i
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   630
        , try $ float pas >>= return . InitFloat . show
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   631
        , try $ integer pas >>= return . InitNumber . show
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   632
        , stringLiteral pas >>= return . InitString
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   633
        , char' '#' >> many digit >>= \c -> comments >> return (InitChar c)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   634
        , char' '$' >> many hexDigit >>= \h -> comments >> return (InitHexNumber h)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   635
        , char' '@' >> initExpression >>= \c -> comments >> return (InitAddress c)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   636
        , try $ string' "nil" >> return InitNull
10131
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   637
        , try itypeCast
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   638
        , iD >>= return . InitReference
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   639
        ]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   640
9954
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   641
    notRecord (InitRecord _) = False
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   642
    notRecord _ = True
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   643
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   644
    recField = do
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   645
        i <- iD
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   646
        spaces
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   647
        char' ':'
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   648
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   649
        e <- initExpression
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   650
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   651
        return (i ,e)
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   652
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   653
    table = [
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   654
          [
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   655
             Prefix (char' '-' >> return (InitPrefixOp "-"))
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   656
            ,Prefix (try (string' "not") >> return (InitPrefixOp "not"))
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   657
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   658
        , [  Infix (char' '*' >> return (InitBinOp "*")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   659
           , Infix (char' '/' >> return (InitBinOp "/")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   660
           , Infix (try (string' "div") >> return (InitBinOp "div")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   661
           , Infix (try (string' "mod") >> return (InitBinOp "mod")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   662
           , Infix (try $ string' "and" >> return (InitBinOp "and")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   663
           , Infix (try $ string' "shl" >> return (InitBinOp "shl")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   664
           , Infix (try $ string' "shr" >> return (InitBinOp "shr")) AssocNone
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   665
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   666
        , [  Infix (char' '+' >> return (InitBinOp "+")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   667
           , Infix (char' '-' >> return (InitBinOp "-")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   668
           , Infix (try $ string' "or" >> return (InitBinOp "or")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   669
           , Infix (try $ string' "xor" >> return (InitBinOp "xor")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   670
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   671
        , [  Infix (try (string' "<>") >> return (InitBinOp "<>")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   672
           , Infix (try (string' "<=") >> return (InitBinOp "<=")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   673
           , Infix (try (string' ">=") >> return (InitBinOp ">=")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   674
           , Infix (char' '<' >> return (InitBinOp "<")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   675
           , Infix (char' '>' >> return (InitBinOp ">")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   676
           , Infix (char' '=' >> return (InitBinOp "=")) AssocNone
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   677
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   678
        {--, [  Infix (try $ string' "and" >> return (InitBinOp "and")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   679
           , Infix (try $ string' "or" >> return (InitBinOp "or")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   680
           , Infix (try $ string' "xor" >> return (InitBinOp "xor")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   681
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   682
        , [  Infix (try $ string' "shl" >> return (InitBinOp "shl")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   683
           , Infix (try $ string' "shr" >> return (InitBinOp "shr")) AssocNone
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   684
          ]--}
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   685
        --, [Prefix (try (string' "not") >> return (InitPrefixOp "not"))]
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   686
        ]
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   687
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   688
    itypeCast = do
10131
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   689
        --t <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) knownTypes
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   690
        t <- iD
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   691
        i <- parens pas initExpression
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   692
        comments
10131
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   693
        return $ InitTypeCast t i
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   694
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   695
builtInFunction :: Parsec String u a -> Parsec String u (String, [a])
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   696
builtInFunction e = do
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   697
    name <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) builtin
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   698
    spaces
6897
a9126661f613 Fix parsing of exit() call without parameters
unc0rr
parents: 6895
diff changeset
   699
    exprs <- option [] $ parens pas $ option [] $ commaSep1 pas $ e
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   700
    spaces
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   701
    return (name, exprs)
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   702
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   703
systemUnit :: Parsec String u PascalUnit
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   704
systemUnit = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   705
    string' "system;"
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   706
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   707
    string' "type"
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   708
    comments
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   709
    t <- typesDecl
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   710
    string' "var"
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   711
    v <- varsDecl True
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   712
    return $ System (t ++ v)
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   713
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   714
redoUnit :: Parsec String u PascalUnit
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   715
redoUnit = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   716
    string' "redo;"
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   717
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   718
    string' "type"
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   719
    comments
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   720
    t <- typesDecl
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   721
    string' "var"
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   722
    v <- varsDecl True
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   723
    return $ Redo (t ++ v)
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   724