tools/pas2c/PascalParser.hs
author Wuzzy <almikes@aol.com>
Wed, 13 Apr 2016 12:17:30 +0200
changeset 11765 10860d4bca22
parent 11398 c3a535886806
child 14235 3a9e4f35aa68
permissions -rw-r--r--
Add sound effects for: cleaver impact, air mine impact, using extra time
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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 = 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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    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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   146
    , 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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    ] <?> "type declaration"
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    where
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    arrayDecl = do
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   154
        try $ do
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   155
            optional $ (try $ string' "packed") >> comments
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            string' "array"
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        comments
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   158
        r <- option [] $ do
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   159
            char' '['
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   160
            r <- commaSep pas rangeDecl
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   161
            char' ']'
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   162
            comments
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   163
            return r
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   164
        string' "of"
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        comments
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   166
        t <- typeDecl
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   167
        if null r then
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            return $ ArrayDecl Nothing t
2d44f6561e72 Help parser a bit
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   169
            else
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            return $ foldr (\a b -> ArrayDecl (Just a) b) (ArrayDecl (Just $ head r) t) (tail r)
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    recordDecl = do
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   172
        try $ do
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   173
            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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   177
        union <- optionMaybe $ do
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            string' "case"
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   179
            comments
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            void $ iD
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   181
            comments
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            string' "of"
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unc0rr
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   183
            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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   184
            many unionCase
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   185
        string' "end"
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   186
        return $ RecordType vs union
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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   187
    setDecl = do
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   188
        try $ string' "set" >> void space
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   189
        comments
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        string' "of"
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unc0rr
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   191
        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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   192
        liftM Set 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
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   193
    unionCase = do
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   194
        void $ try $ commaSep pas $ (void $ iD) <|> (void $ integer pas)
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   195
        char' ':'
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   196
        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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   197
        u <- parens pas $ varsDecl True
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   198
        char' ';'
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   199
        comments
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   200
        return u
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210f12d36822 revert my pas2c modification
sheepluva
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   201
    sequenceDecl = (parens pas) $ (commaSep pas) (iD >>= \i -> optional (spaces >> char' '=' >> spaces >> integer pas) >> return i)
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   202
    functionType = do
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   203
        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
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   204
        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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   205
        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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   206
        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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   207
        ret <- if (fp == "function") then do
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            char' ':'
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   209
            comments
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   210
            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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   211
            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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   212
            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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   213
            else
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   214
            return VoidType
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unc0rr
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   215
        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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   216
        comments
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unc0rr
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   217
        return $ FunctionType ret vs
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unc0rr
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   218
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   219
typesDecl :: Parsec String u [TypeVarDeclaration]
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typesDecl = many (aTypeDecl >>= \t -> comments >> return t)
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   221
    where
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   222
    aTypeDecl = do
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   223
        i <- try $ do
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   224
            i <- iD <?> "type declaration"
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   225
            comments
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   226
            char' '='
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   227
            return i
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   228
        comments
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   229
        t <- typeDecl
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   230
        comments
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unc0rr
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   231
        void $ semi pas
6277
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   232
        comments
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   233
        return $ TypeDeclaration i t
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   234
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   235
rangeDecl :: Parsec String u Range
6270
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unc0rr
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   236
rangeDecl = choice [
6277
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   237
    try $ rangeft
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   238
    , iD >>= return . Range
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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   239
    ] <?> "range declaration"
6277
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   240
    where
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   241
    rangeft = do
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   242
        e1 <- initExpression
c3a535886806 pas2c: Tentatively fix the build
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   243
        string' ".."
c3a535886806 pas2c: Tentatively fix the build
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   244
        e2 <- initExpression
c3a535886806 pas2c: Tentatively fix the build
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   245
        return $ RangeFromTo e1 e2
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59b5b19e6604 Remove trailing spaces
unc0rr
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   246
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   247
typeVarDeclaration :: Bool -> Parsec String u [TypeVarDeclaration]
6277
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   248
typeVarDeclaration isImpl = (liftM concat . many . choice) [
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   249
    varSection,
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   250
    constSection,
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   251
    typeSection,
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unc0rr
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   252
    funcDecl,
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   253
    operatorDecl
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unc0rr
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   254
    ]
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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   255
    where
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   256
00b1facf2805 merge xymeng pas2c
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   257
    fixInit v = concat $ map (\x -> case x of
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   258
                    VarDeclaration a b (ids, t) c ->
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   259
                        let typeId = (Identifier ((\(Identifier i _) -> i) (head ids) ++ "_tt") BTUnknown) in
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koda
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   260
                        let res =  [TypeDeclaration typeId t, VarDeclaration a b (ids, (SimpleType typeId)) c] in
00b1facf2805 merge xymeng pas2c
koda
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   261
                        case t of
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   262
                            RecordType _ _ -> res -- create a separated type declaration
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   263
                            ArrayDecl _ _ -> res
00b1facf2805 merge xymeng pas2c
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   264
                            _ -> [x]
00b1facf2805 merge xymeng pas2c
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   265
                    _ -> error ("checkInit:\n" ++ (show v))) v
00b1facf2805 merge xymeng pas2c
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   266
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unc0rr
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   267
    varSection = do
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unc0rr
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   268
        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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   269
        comments
6443
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unc0rr
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   270
        v <- varsDecl1 True <?> "variable declaration"
6272
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unc0rr
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   271
        comments
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   272
        return $ fixInit v
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unc0rr
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   273
f1b4f37dba22 Many improvements to the parser
unc0rr
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   274
    constSection = do
10113
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unc0rr
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   275
        try $ string' "const"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
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   276
        comments
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   277
        c <- constsDecl <?> "const declaration"
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   278
        comments
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   279
        return $ fixInit c
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   280
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   281
    typeSection = do
10113
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   282
        try $ string' "type"
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   283
        comments
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   284
        t <- typesDecl <?> "type declaration"
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   285
        comments
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   286
        return t
7315
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   287
6443
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   288
    operatorDecl = do
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   289
        try $ string' "operator"
6443
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   290
        comments
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   291
        i <- manyTill anyChar space
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   292
        comments
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   293
        vs <- parens pas $ varsDecl False
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   294
        comments
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   295
        rid <- iD
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   296
        comments
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   297
        char' ':'
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   298
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
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   299
        ret <- typeDecl
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   300
        comments
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   301
        -- return ret
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unc0rr
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   302
        -- ^^^^^^^^^^ wth was this???
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   303
        char' ';'
6443
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   304
        comments
10113
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unc0rr
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   305
        forward <- liftM isJust $ optionMaybe (try (string' "forward;") >> comments)
7513
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   306
        inline <- liftM (any (== "inline;")) $ many functionDecorator
6443
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unc0rr
parents: 6426
diff changeset
   307
        b <- if isImpl && (not forward) then
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
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diff changeset
   308
                liftM Just functionBody
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
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   309
                else
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   310
                return Nothing
7513
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   311
        return $ [OperatorDeclaration i rid inline ret vs b]
6443
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unc0rr
parents: 6426
diff changeset
   312
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   313
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
   314
    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
   315
        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
   316
        comments
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
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diff changeset
   317
        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
   318
        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
   319
        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
   320
        ret <- if (fp == "function") then do
10113
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unc0rr
parents: 10111
diff changeset
   321
            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
   322
            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
   323
            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
   324
            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
   325
            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
   326
            else
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6826
diff changeset
   327
            return VoidType
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   328
        char' ';'
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   329
        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
   330
        forward <- liftM isJust $ optionMaybe (try (string "forward;") >> comments)
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   331
        decorators <- many functionDecorator
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   332
        let inline = any (== "inline;") decorators
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   333
            overload = any (== "overload;") decorators
10129
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   334
            external = any (== "external;") decorators
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   335
        -- 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
   336
        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
   337
                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
   338
                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
   339
                return Nothing
10129
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   340
        return $ [FunctionDeclaration i inline overload external ret vs b]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   341
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   342
    functionDecorator = do
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   343
        d <- choice [
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   344
            try $ string "inline;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   345
            , try $ caseInsensitiveString "cdecl;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   346
            , try $ string "overload;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   347
            , try $ string "export;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   348
            , try $ string "varargs;"
10129
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   349
            , try (string' "external") >> comments >> iD >> comments >>
cd2a64a1f4aa - Pas2C: make use of 'external' function decorator
unc0rr
parents: 10120
diff changeset
   350
                optional (string' "name" >> comments >> stringLiteral pas) >> string' ";" >> return "external;"
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   351
            ]
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   352
        comments
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   353
        return d
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   354
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   355
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   356
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
   357
program = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   358
    string' "program"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   359
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   360
    name <- iD
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   361
    (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
   362
    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
   363
    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
   364
    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
   365
    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
   366
    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
   367
    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
   368
    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
   369
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   370
    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
   371
    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
   372
    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
   373
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   374
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
   375
interface = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   376
    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
   377
    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
   378
    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
   379
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   380
    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
   381
    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
   382
    return $ Interface u (TypesAndVars tv)
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   383
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   384
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
   385
implementation = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   386
    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
   387
    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
   388
    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
   389
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   390
    tv <- typeVarDeclaration True
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   391
    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
   392
    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
   393
    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
   394
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   395
expression :: Parsec String u Expression
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   396
expression = do
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   397
    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
   398
    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
   399
    term = comments >> choice [
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6512
diff changeset
   400
        builtInFunction expression >>= \(n, e) -> return $ BuiltInFunCall e (SimpleReference (Identifier n BTUnknown))
10924
ed1b6914cac5 Less code - less bugs (fix pas2c build)
unc0rr
parents: 10747
diff changeset
   401
        , try (parens pas expression >>= \e -> notFollowedBy (comments >> char' '.') >> return e)
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   402
        , 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
   403
        , try $ integer pas >>= \i -> notFollowedBy (char' '.') >> (return . NumberLiteral . show) i
6452
7c6f9b6672dc More work on the parser
unc0rr
parents: 6450
diff changeset
   404
        , float pas >>= return . FloatLiteral . show
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   405
        , 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
   406
        , 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
   407
        , 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
   408
        , stringLiteral pas >>= return . strOrChar
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   409
        , try (string' "#$") >> many hexDigit >>= \c -> comments >> return (HexCharCode c)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   410
        , char' '#' >> many digit >>= \c -> comments >> return (CharCode c)
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   411
        , char' '$' >> 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
   412
        --, char' '-' >> expression >>= return . PrefixOp "-"
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   413
        , char' '-' >> reference >>= return . PrefixOp "-" . Reference
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   414
        , (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
   415
        , try $ string' "nil" >> return Null
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   416
        , 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
   417
        ] <?> "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
   418
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   419
    table = [
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   420
          [  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
   421
           , Prefix (try (char' '-') >> return (PrefixOp "-"))]
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   422
           ,
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   423
          [  Infix (char' '*' >> return (BinOp "*")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   424
           , Infix (char' '/' >> return (BinOp "/")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   425
           , 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
   426
           , 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
   427
           , 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
   428
           , 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
   429
           , 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
   430
           , Infix (try $ string' "shr" >> return (BinOp "shr")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   431
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   432
        , [  Infix (char' '+' >> return (BinOp "+")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   433
           , Infix (char' '-' >> return (BinOp "-")) AssocLeft
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   434
           , 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
   435
           , Infix (try $ string' "xor" >> return (BinOp "xor")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   436
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   437
        , [  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
   438
           , 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
   439
           , 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
   440
           , Infix (char' '<' >> return (BinOp "<")) AssocNone
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   441
           , Infix (char' '>' >> return (BinOp ">")) AssocNone
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   442
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   443
        {-, [  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
   444
             , 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
   445
          ]
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   446
        , [
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   447
             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
   448
           , 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
   449
          ]-}
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   450
        , [
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   451
             Infix (char' '=' >> return (BinOp "=")) AssocNone
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   452
          ]
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
   453
        ]
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   454
    strOrChar [a] = CharCode . show . ord $ a
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   455
    strOrChar a = StringLiteral a
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   456
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   457
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
   458
phrasesBlock = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   459
    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
   460
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   461
    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
   462
    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
   463
    return $ Phrases p
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   464
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   465
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
   466
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
   467
    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
   468
        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
   469
        , 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
   470
        , whileCycle
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   471
        , 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
   472
        , switchCase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   473
        , withBlock
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   474
        , forCycle
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   475
        , (try $ reference >>= \r -> string' ":=" >> return r) >>= \r -> comments >> expression >>= return . Assignment r
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6891
diff changeset
   476
        , 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
   477
        , procCall
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   478
        , 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
   479
        ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   480
    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
   481
    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
   482
    return o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   483
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   484
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
   485
ifBlock = do
7642
91fce82f9c6f fix parsing of 'if': identifiers can also contain underscores
sheepluva
parents: 7641
diff changeset
   486
    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
   487
    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
   488
    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
   489
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   490
    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
   491
    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
   492
    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
   493
    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
   494
    o2 <- optionMaybe $ do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   495
        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
   496
        comments
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   497
        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
   498
        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
   499
        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
   500
    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
   501
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   502
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
   503
whileCycle = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   504
    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
   505
    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
   506
    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
   507
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   508
    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
   509
    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
   510
    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
   511
    return $ WhileCycle e o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   512
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   513
withBlock :: Parsec String u Phrase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   514
withBlock = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   515
    try $ string' "with" >> void space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   516
    comments
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   517
    rs <- (commaSep1 pas) reference
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   518
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   519
    string' "do"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   520
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   521
    o <- phrase
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   522
    return $ foldr WithBlock o rs
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   523
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   524
repeatCycle :: Parsec String u Phrase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   525
repeatCycle = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   526
    try $ string' "repeat" >> void space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   527
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   528
    o <- many phrase
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   529
    string' "until"
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
    e <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   532
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   533
    return $ RepeatCycle e o
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   534
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   535
forCycle :: Parsec String u Phrase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   536
forCycle = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   537
    try $ string' "for" >> void space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   538
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   539
    i <- iD
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   540
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   541
    string' ":="
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   542
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   543
    e1 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   544
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   545
    up <- liftM (== Just "to") $
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   546
            optionMaybe $ choice [
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   547
                try $ string "to"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   548
                , try $ string "downto"
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   549
                ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   550
    --choice [string' "to", string' "downto"]
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   551
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   552
    e2 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   553
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   554
    string' "do"
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   555
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   556
    p <- phrase
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   557
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   558
    return $ ForCycle i e1 e2 p up
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   559
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   560
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
   561
switchCase = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   562
    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
   563
    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
   564
    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
   565
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   566
    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
   567
    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
   568
    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
   569
    o2 <- optionMaybe $ do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   570
        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
   571
        comments
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   572
        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
   573
        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
   574
        return o
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   575
    string' "end"
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   576
    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
   577
    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
   578
    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
   579
    aCase = do
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   580
        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
   581
        comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   582
        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
   583
        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
   584
        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
   585
        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
   586
        return (e, p)
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   587
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   588
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
   589
procCall = do
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   590
    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
   591
    p <- option [] $ (parens pas) parameters
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   592
    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
   593
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   594
parameters :: Parsec String u [Expression]
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   595
parameters = (commaSep pas) expression <?> "parameters"
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   596
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   597
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
   598
functionBody = do
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   599
    tv <- typeVarDeclaration True
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   600
    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
   601
    p <- phrasesBlock
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   602
    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
   603
    comments
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   604
    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
   605
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   606
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
   607
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
   608
    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
   609
        u = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   610
            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
   611
            comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   612
            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
   613
            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
   614
            comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   615
            return ulist
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   616
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   617
initExpression :: Parsec String u InitExpression
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   618
initExpression = buildExpressionParser table term <?> "initialization expression"
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   619
    where
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   620
    term = comments >> choice [
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   621
        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
   622
        , try $ brackets pas (commaSep pas $ initExpression) >>= return . InitSet
9954
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   623
        , 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
   624
        , 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
   625
        , parens pas initExpression
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   626
        , try $ integer pas >>= \i -> notFollowedBy (char' '.') >> (return . InitNumber . show) i
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   627
        , try $ float pas >>= return . InitFloat . show
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   628
        , try $ integer pas >>= return . InitNumber . show
10747
07ade56c3b4a backporting some build system fixes and pas2c tweaks
sheepluva
parents: 10353
diff changeset
   629
        , try (string' "_S" >> stringLiteral pas) >>= return . InitString
07ade56c3b4a backporting some build system fixes and pas2c tweaks
sheepluva
parents: 10353
diff changeset
   630
        , try (string' "_P" >> stringLiteral pas) >>= return . InitPChar
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   631
        , stringLiteral pas >>= return . InitString
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   632
        , 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
   633
        , 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
   634
        , 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
   635
        , try $ string' "nil" >> return InitNull
10131
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   636
        , try itypeCast
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   637
        , iD >>= return . InitReference
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   638
        ]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   639
9954
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   640
    notRecord (InitRecord _) = False
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   641
    notRecord _ = True
bf51bc7e2808 - Fix build via pas2c
unc0rr
parents: 9166
diff changeset
   642
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   643
    recField = do
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   644
        i <- iD
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   645
        spaces
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   646
        char' ':'
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   647
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   648
        e <- initExpression
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   649
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   650
        return (i ,e)
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   651
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   652
    table = [
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   653
          [
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   654
             Prefix (char' '-' >> return (InitPrefixOp "-"))
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   655
            ,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
   656
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   657
        , [  Infix (char' '*' >> return (InitBinOp "*")) AssocLeft
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 (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
   660
           , 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
   661
           , 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
   662
           , 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
   663
           , Infix (try $ string' "shr" >> return (InitBinOp "shr")) AssocNone
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   664
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   665
        , [  Infix (char' '+' >> return (InitBinOp "+")) AssocLeft
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 (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
   668
           , Infix (try $ string' "xor" >> return (InitBinOp "xor")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   669
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   670
        , [  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
   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 (char' '<' >> 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
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   676
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   677
        {--, [  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
   678
           , 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
   679
           , Infix (try $ string' "xor" >> return (InitBinOp "xor")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   680
          ]
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   681
        , [  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
   682
           , 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
   683
          ]--}
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   684
        --, [Prefix (try (string' "not") >> return (InitPrefixOp "not"))]
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   685
        ]
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   686
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   687
    itypeCast = do
10131
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   688
        --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
   689
        t <- iD
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   690
        i <- parens pas initExpression
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   691
        comments
10131
4b4a043111f4 - pas2c recognizes typecasts in initialization expressions
unc0rr
parents: 10129
diff changeset
   692
        return $ InitTypeCast t i
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   693
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   694
builtInFunction :: Parsec String u a -> Parsec String u (String, [a])
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   695
builtInFunction e = do
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   696
    name <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) builtin
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   697
    spaces
6897
a9126661f613 Fix parsing of exit() call without parameters
unc0rr
parents: 6895
diff changeset
   698
    exprs <- option [] $ parens pas $ option [] $ commaSep1 pas $ e
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   699
    spaces
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   700
    return (name, exprs)
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   701
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   702
systemUnit :: Parsec String u PascalUnit
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   703
systemUnit = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   704
    string' "system;"
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   705
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   706
    string' "type"
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   707
    comments
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   708
    t <- typesDecl
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   709
    string' "var"
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   710
    v <- varsDecl True
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   711
    return $ System (t ++ v)
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   712
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   713
redoUnit :: Parsec String u PascalUnit
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   714
redoUnit = do
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   715
    string' "redo;"
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   716
    comments
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   717
    string' "type"
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   718
    comments
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   719
    t <- typesDecl
10113
b26c2772e754 Fix tons and tons of pas2c warnings (but still not all of them)
unc0rr
parents: 10111
diff changeset
   720
    string' "var"
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   721
    v <- varsDecl True
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   722
    return $ Redo (t ++ v)
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   723