tools/pas2c/PascalParser.hs
author unc0rr
Sat, 15 Jun 2013 23:45:53 +0400
branchwebgl
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- Fix 'and not' without parentheses - Better detection of such occasions
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module PascalParser where
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import Text.Parsec
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import Text.Parsec.Char
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import Text.Parsec.Token
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import Text.Parsec.Language
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import Text.Parsec.Expr
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import Text.Parsec.Prim
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import Text.Parsec.Combinator
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import Text.Parsec.String
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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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knownTypes = ["shortstring", "ansistring", "char", "byte"]
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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 = 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 = do
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    string "unit" >> comments
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    name <- iD
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    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 = buildExpressionParser table term <?> "reference"
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    where
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    term = comments >> choice [
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        parens pas (liftM RefExpression expression >>= postfixes) >>= postfixes
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        , try $ typeCast >>= postfixes
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        , char '@' >> liftM Address reference >>= postfixes
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        , liftM SimpleReference iD >>= postfixes
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        ] <?> "simple reference"
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    table = [
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        ]
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    postfixes r = many postfix >>= return . foldl (flip ($)) r
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    postfix = choice [
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            parens pas (option [] parameters) >>= return . FunCall
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          , char '^' >> return Dereference
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          , (brackets pas) (commaSep1 pas $ expression) >>= return . ArrayElement
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          , (char '.' >> notFollowedBy (char '.')) >> liftM (flip RecordField) reference
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        ]
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    typeCast = do
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        t <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) knownTypes
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        e <- parens pas expression
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        comments
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        return $ TypeCast (Identifier t BTUnknown) e
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varsDecl1 = varsParser sepEndBy1
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varsDecl = varsParser sepEndBy
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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 endsWithSemi = do
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    isVar <- liftM (== Just "var") $
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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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    init <- 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) init
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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 = choice [
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    char '^' >> typeDecl >>= return . PointerTo
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    , try (string "shortstring") >> return (String 255)
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    , try (string "string") >> optionMaybe (brackets pas $ integer pas) >>= return . String . fromMaybe 255
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    , try (string "ansistring") >> optionMaybe (brackets pas $ integer pas) >>= return . String . fromMaybe 255
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    , arrayDecl
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    , recordDecl
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    , setDecl
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    , functionType
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    , sequenceDecl >>= return . Sequence
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    , try iD >>= return . SimpleType
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    , rangeDecl >>= return . RangeType
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    ] <?> "type declaration"
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    where
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    arrayDecl = do
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        try $ do
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            optional $ (try $ string "packed") >> comments
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            string "array"
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        comments
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        r <- option [] $ do
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            char '['
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            r <- commaSep pas rangeDecl
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            char ']'
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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diff changeset
   145
            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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   146
            return r
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unc0rr
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   147
        string "of"
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671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
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   148
        comments
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unc0rr
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   149
        t <- typeDecl
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   150
        if null r then
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   151
            return $ ArrayDecl Nothing t
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   152
            else
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   153
            return $ foldr (\a b -> ArrayDecl (Just a) b) (ArrayDecl (Just $ head r) t) (tail r)
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unc0rr
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   154
    recordDecl = do
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unc0rr
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   155
        try $ 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
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   156
            optional $ (try $ string "packed") >> 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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   157
            string "record"
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   158
        comments
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   159
        vs <- varsDecl True
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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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   160
        union <- optionMaybe $ 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
   161
            string "case"
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
   162
            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
   163
            iD
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
   164
            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
   165
            string "of"
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
   166
            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
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   167
            many unionCase
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   168
        string "end"
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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   169
        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
unc0rr
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   170
    setDecl = 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
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   171
        try $ string "set" >> space
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
   172
        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
   173
        string "of"
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
   174
        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
   175
        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
unc0rr
parents: 6417
diff changeset
   176
    unionCase = 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
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   177
        try $ commaSep pas $ (iD >> return ()) <|> (integer pas >> return ())
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
   178
        char ':'
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
   179
        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
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   180
        u <- parens pas $ varsDecl True
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
   181
        char ';'
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
   182
        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
   183
        return u
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
   184
    sequenceDecl = (parens pas) $ (commaSep pas) (iD >>= \i -> optional (spaces >> char '=' >> spaces >> integer pas) >> return i)
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
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   185
    functionType = 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
   186
        fp <- try (string "function") <|> try (string "procedure")
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   187
        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
   188
        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
parents: 6417
diff changeset
   189
        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
   190
        ret <- if (fp == "function") then 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
   191
            char ':'
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
   192
            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
   193
            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
   194
            comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   195
            return ret
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
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diff changeset
   196
            else
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8fadeefdd352 Just some further work
unc0rr
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   197
            return VoidType
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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diff changeset
   198
        optional $ try $ char ';' >> comments >> string "cdecl"
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
   199
        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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   200
        return $ FunctionType ret vs
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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diff changeset
   201
6277
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   202
typesDecl = many (aTypeDecl >>= \t -> comments >> return t)
627b5752733a A try to improve parser move (has regressions)
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   203
    where
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   204
    aTypeDecl = do
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unc0rr
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   205
        i <- try $ do
627b5752733a A try to improve parser move (has regressions)
unc0rr
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   206
            i <- iD <?> "type declaration"
627b5752733a A try to improve parser move (has regressions)
unc0rr
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   207
            comments
627b5752733a A try to improve parser move (has regressions)
unc0rr
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   208
            char '='
627b5752733a A try to improve parser move (has regressions)
unc0rr
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diff changeset
   209
            return i
627b5752733a A try to improve parser move (has regressions)
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   210
        comments
627b5752733a A try to improve parser move (has regressions)
unc0rr
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diff changeset
   211
        t <- typeDecl
627b5752733a A try to improve parser move (has regressions)
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   212
        comments
627b5752733a A try to improve parser move (has regressions)
unc0rr
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   213
        semi pas
627b5752733a A try to improve parser move (has regressions)
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   214
        comments
627b5752733a A try to improve parser move (has regressions)
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   215
        return $ TypeDeclaration i t
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unc0rr
parents: 6452
diff changeset
   216
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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   217
rangeDecl = choice [
6277
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   218
    try $ rangeft
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   219
    , 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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   220
    ] <?> "range declaration"
6277
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unc0rr
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diff changeset
   221
    where
627b5752733a A try to improve parser move (has regressions)
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   222
    rangeft = do
6388
14718b2685a3 Recognize some built-in functions
unc0rr
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diff changeset
   223
    e1 <- initExpression
6277
627b5752733a A try to improve parser move (has regressions)
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   224
    string ".."
6388
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unc0rr
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diff changeset
   225
    e2 <- initExpression
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unc0rr
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   226
    return $ RangeFromTo e1 e2
59b5b19e6604 Remove trailing spaces
unc0rr
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diff changeset
   227
6277
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   228
typeVarDeclaration isImpl = (liftM concat . many . choice) [
6270
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unc0rr
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   229
    varSection,
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   230
    constSection,
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   231
    typeSection,
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unc0rr
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   232
    funcDecl,
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   233
    operatorDecl
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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diff changeset
   234
    ]
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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diff changeset
   235
    where
8020
00b1facf2805 merge xymeng pas2c
koda
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diff changeset
   236
00b1facf2805 merge xymeng pas2c
koda
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   237
    fixInit v = concat $ map (\x -> case x of
00b1facf2805 merge xymeng pas2c
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   238
                    VarDeclaration a b (ids, t) c ->
00b1facf2805 merge xymeng pas2c
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   239
                        let typeId = (Identifier ((\(Identifier i _) -> i) (head ids) ++ "_tt") BTUnknown) in
00b1facf2805 merge xymeng pas2c
koda
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   240
                        let res =  [TypeDeclaration typeId t, VarDeclaration a b (ids, (SimpleType typeId)) c] in
00b1facf2805 merge xymeng pas2c
koda
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   241
                        case t of
00b1facf2805 merge xymeng pas2c
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   242
                            RecordType _ _ -> res -- create a separated type declaration
00b1facf2805 merge xymeng pas2c
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   243
                            ArrayDecl _ _ -> res
00b1facf2805 merge xymeng pas2c
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   244
                            _ -> [x]
00b1facf2805 merge xymeng pas2c
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   245
                    _ -> error ("checkInit:\n" ++ (show v))) v
00b1facf2805 merge xymeng pas2c
koda
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diff changeset
   246
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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   247
    varSection = 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
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   248
        try $ string "var"
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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   249
        comments
6443
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unc0rr
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   250
        v <- varsDecl1 True <?> "variable declaration"
6272
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unc0rr
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diff changeset
   251
        comments
8020
00b1facf2805 merge xymeng pas2c
koda
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   252
        return $ fixInit v
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   253
f1b4f37dba22 Many improvements to the parser
unc0rr
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diff changeset
   254
    constSection = do
f1b4f37dba22 Many improvements to the parser
unc0rr
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   255
        try $ string "const"
f1b4f37dba22 Many improvements to the parser
unc0rr
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diff changeset
   256
        comments
6443
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   257
        c <- constsDecl <?> "const declaration"
6275
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   258
        comments
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   259
        return $ fixInit c
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   260
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   261
    typeSection = do
627b5752733a A try to improve parser move (has regressions)
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   262
        try $ string "type"
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   263
        comments
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   264
        t <- typesDecl <?> "type declaration"
6277
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   265
        comments
627b5752733a A try to improve parser move (has regressions)
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   266
        return t
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unc0rr
parents: 7070
diff changeset
   267
6443
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   268
    operatorDecl = do
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
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   269
        try $ string "operator"
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   270
        comments
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   271
        i <- manyTill anyChar space
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   272
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
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   273
        vs <- parens pas $ varsDecl False
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   274
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
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   275
        rid <- iD
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   276
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
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   277
        char ':'
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
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diff changeset
   278
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
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   279
        ret <- typeDecl
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diff changeset
   280
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   281
        return ret
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   282
        char ';'
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   283
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   284
        forward <- liftM isJust $ optionMaybe (try (string "forward;") >> comments)
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   285
        inline <- liftM (any (== "inline;")) $ many functionDecorator
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   286
        b <- if isImpl && (not forward) then
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   287
                liftM Just functionBody
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   288
                else
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   289
                return Nothing
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   290
        return $ [OperatorDeclaration i rid inline ret vs b]
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   291
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   292
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
   293
    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
   294
        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
   295
        comments
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   296
        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
   297
        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
   298
        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
   299
        ret <- if (fp == "function") then 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
   300
            char ':'
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
   301
            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
   302
            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
   303
            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
   304
            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
   305
            else
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6826
diff changeset
   306
            return VoidType
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
   307
        char ';'
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   308
        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
   309
        forward <- liftM isJust $ optionMaybe (try (string "forward;") >> comments)
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   310
        decorators <- many functionDecorator
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   311
        let inline = any (== "inline;") decorators
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   312
            overload = any (== "overload;") decorators
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
   313
        b <- if isImpl && (not forward) 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
   314
                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
   315
                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
   316
                return Nothing
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   317
        return $ [FunctionDeclaration i inline overload ret vs b]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   318
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   319
    functionDecorator = do
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   320
        d <- choice [
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   321
            try $ string "inline;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   322
            , try $ caseInsensitiveString "cdecl;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   323
            , try $ string "overload;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   324
            , try $ string "export;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   325
            , try $ string "varargs;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   326
            , try (string "external") >> comments >> iD >> optional (string "name" >> comments >> stringLiteral pas)>> string ";"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   327
            ]
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   328
        comments
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   329
        return d
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   330
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   331
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
   332
program = do
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   333
    string "program"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   334
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   335
    name <- iD
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   336
    (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
   337
    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
   338
    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
   339
    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
   340
    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
   341
    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
   342
    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
   343
    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
   344
    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
   345
    char '.'
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   346
    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
   347
    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
   348
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
   349
interface = 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
   350
    string "interface"
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
   351
    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
   352
    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
   353
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   354
    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
   355
    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
   356
    return $ Interface u (TypesAndVars tv)
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   357
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
   358
implementation = 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
   359
    string "implementation"
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   360
    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
   361
    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
   362
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   363
    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
   364
    string "end."
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   365
    comments
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
   366
    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
   367
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   368
expression = do
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   369
    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
   370
    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
   371
    term = comments >> choice [
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6512
diff changeset
   372
        builtInFunction expression >>= \(n, e) -> return $ BuiltInFunCall e (SimpleReference (Identifier n BTUnknown))
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   373
        , try (parens pas $ expression >>= \e -> notFollowedBy (comments >> char '.') >> return e)
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   374
        , brackets pas (commaSep pas iD) >>= return . SetExpression
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   375
        , try $ integer pas >>= \i -> notFollowedBy (char '.') >> (return . NumberLiteral . show) i
6452
7c6f9b6672dc More work on the parser
unc0rr
parents: 6450
diff changeset
   376
        , float pas >>= return . FloatLiteral . show
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   377
        , try $ integer pas >>= return . NumberLiteral . show
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   378
        , try (string "_S" >> stringLiteral pas) >>= return . StringLiteral
7070
8d4189609e90 oops, wrong type
unc0rr
parents: 7069
diff changeset
   379
        , 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
   380
        , stringLiteral pas >>= return . strOrChar
6444
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   381
        , try (string "#$") >> many hexDigit >>= \c -> comments >> return (HexCharCode c)
6417
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   382
        , char '#' >> many digit >>= \c -> comments >> return (CharCode c)
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   383
        , char '$' >> many hexDigit >>=  \h -> comments >> return (HexNumber h)
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   384
        --, char '-' >> expression >>= return . PrefixOp "-"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   385
        , char '-' >> reference >>= return . PrefixOp "-" . Reference
7762
d2fd8040534f Better error handling
unc0rr
parents: 7690
diff changeset
   386
        , (try $ string "not" >> notFollowedBy comments) >> unexpected "'not'"
6290
c6245ed6cbc0 Some improvements to the parser
unc0rr
parents: 6277
diff changeset
   387
        , try $ string "nil" >> return Null
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   388
        , 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
   389
        ] <?> "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
   390
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   391
    table = [
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   392
          [  Prefix (reservedOp pas "not">> return (PrefixOp "not"))
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   393
           , Prefix (try (char '-') >> return (PrefixOp "-"))]
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   394
           ,
6290
c6245ed6cbc0 Some improvements to the parser
unc0rr
parents: 6277
diff changeset
   395
          [  Infix (char '*' >> return (BinOp "*")) AssocLeft
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
   396
           , Infix (char '/' >> return (BinOp "/")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   397
           , Infix (try (string "div") >> return (BinOp "div")) AssocLeft
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   398
           , Infix (try (string "mod") >> return (BinOp "mod")) AssocLeft
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   399
           , Infix (try (string "in") >> return (BinOp "in")) AssocNone
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   400
           , Infix (try $ string "and" >> return (BinOp "and")) AssocLeft
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   401
           , Infix (try $ string "shl" >> return (BinOp "shl")) AssocLeft
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   402
           , Infix (try $ string "shr" >> return (BinOp "shr")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   403
          ]
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
   404
        , [  Infix (char '+' >> return (BinOp "+")) AssocLeft
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
   405
           , Infix (char '-' >> return (BinOp "-")) AssocLeft
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   406
           , Infix (try $ string "or" >> return (BinOp "or")) AssocLeft
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   407
           , Infix (try $ string "xor" >> return (BinOp "xor")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   408
          ]
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   409
        , [  Infix (try (string "<>") >> return (BinOp "<>")) AssocNone
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
   410
           , Infix (try (string "<=") >> return (BinOp "<=")) AssocNone
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
   411
           , Infix (try (string ">=") >> return (BinOp ">=")) AssocNone
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
   412
           , Infix (char '<' >> return (BinOp "<")) AssocNone
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
   413
           , Infix (char '>' >> return (BinOp ">")) AssocNone
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   414
          ]
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   415
        {-, [  Infix (try $ string "shl" >> return (BinOp "shl")) AssocNone
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   416
             , 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
   417
          ]
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   418
        , [
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   419
             Infix (try $ string "or" >> return (BinOp "or")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   420
           , 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
   421
          ]-}
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   422
        , [
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   423
             Infix (char '=' >> return (BinOp "=")) AssocNone
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   424
          ]
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
   425
        ]
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   426
    strOrChar [a] = CharCode . show . ord $ a
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   427
    strOrChar a = StringLiteral a
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   428
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
   429
phrasesBlock = 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
   430
    try $ string "begin"
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
   431
    comments
6444
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   432
    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
   433
    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
   434
    return $ Phrases p
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   435
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
   436
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
   437
    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
   438
        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
   439
        , 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
   440
        , whileCycle
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   441
        , 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
   442
        , switchCase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   443
        , withBlock
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   444
        , forCycle
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   445
        , (try $ reference >>= \r -> string ":=" >> return r) >>= \r -> comments >> expression >>= return . Assignment r
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6891
diff changeset
   446
        , 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
   447
        , procCall
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   448
        , 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
   449
        ]
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
   450
    optional $ char ';'
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
   451
    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
   452
    return o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   453
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
   454
ifBlock = do
7642
91fce82f9c6f fix parsing of 'if': identifiers can also contain underscores
sheepluva
parents: 7641
diff changeset
   455
    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
   456
    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
   457
    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
   458
    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
   459
    string "then"
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
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   461
    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
   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
    o2 <- optionMaybe $ do
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
   464
        try $ string "else" >> 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
   465
        comments
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   466
        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
   467
        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
   468
        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
   469
    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
   470
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   471
whileCycle = 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
   472
    try $ string "while"
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   473
    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
   474
    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
   475
    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
   476
    string "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
   477
    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
   478
    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
   479
    return $ WhileCycle e o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   480
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   481
withBlock = do
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
   482
    try $ string "with" >> space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   483
    comments
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   484
    rs <- (commaSep1 pas) reference
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   485
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   486
    string "do"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   487
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   488
    o <- phrase
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   489
    return $ foldr WithBlock o rs
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   490
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   491
repeatCycle = do
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
   492
    try $ string "repeat" >> space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   493
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   494
    o <- many phrase
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   495
    string "until"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   496
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   497
    e <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   498
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   499
    return $ RepeatCycle e o
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   500
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   501
forCycle = do
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
   502
    try $ string "for" >> space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   503
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   504
    i <- iD
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   505
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   506
    string ":="
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   507
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   508
    e1 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   509
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   510
    up <- liftM (== Just "to") $
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   511
            optionMaybe $ choice [
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   512
                try $ string "to"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   513
                , try $ string "downto"
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   514
                ]
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   515
    --choice [string "to", string "downto"]
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   516
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   517
    e2 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   518
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   519
    string "do"
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
    p <- phrase
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   522
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   523
    return $ ForCycle i e1 e2 p up
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   524
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
   525
switchCase = 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
   526
    try $ string "case"
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
   527
    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
   528
    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
   529
    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
   530
    string "of"
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
   531
    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
   532
    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
   533
    o2 <- optionMaybe $ do
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   534
        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
   535
        comments
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   536
        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
   537
        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
   538
        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
   539
    string "end"
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   540
    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
   541
    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
   542
    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
   543
    aCase = do
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   544
        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
   545
        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
   546
        char ':'
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
   547
        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
   548
        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
   549
        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
   550
        return (e, p)
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   551
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
   552
procCall = do
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   553
    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
   554
    p <- option [] $ (parens pas) parameters
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   555
    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
   556
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   557
parameters = (commaSep pas) expression <?> "parameters"
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   558
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
   559
functionBody = do
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   560
    tv <- typeVarDeclaration True
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   561
    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
   562
    p <- 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
   563
    char ';'
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
    comments
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   565
    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
   566
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
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
   568
    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
   569
        u = 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
   570
            string "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
   571
            comments
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   572
            u <- (iD >>= \i -> comments >> return i) `sepBy1` (char ',' >> 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
   573
            char ';'
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   574
            comments
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
   575
            return u
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   576
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   577
initExpression = buildExpressionParser table term <?> "initialization expression"
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   578
    where
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   579
    term = comments >> choice [
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   580
        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
   581
        , try $ brackets pas (commaSep pas $ initExpression) >>= return . InitSet
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
   582
        , try $ parens pas (commaSep pas $ initExpression) >>= \ia -> when (null $ tail ia) mzero >> return (InitArray ia)
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
   583
        , try $ parens pas (sepEndBy recField (char ';' >> comments)) >>= return . InitRecord
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
   584
        , parens pas initExpression
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   585
        , try $ integer pas >>= \i -> notFollowedBy (char '.') >> (return . InitNumber . show) i
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   586
        , try $ float pas >>= return . InitFloat . show
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   587
        , try $ integer pas >>= return . InitNumber . show
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   588
        , stringLiteral pas >>= return . InitString
6444
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   589
        , char '#' >> many digit >>= \c -> comments >> return (InitChar c)
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   590
        , char '$' >> many hexDigit >>= \h -> comments >> return (InitHexNumber h)
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   591
        , char '@' >> initExpression >>= \c -> comments >> return (InitAddress c)
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   592
        , try $ string "nil" >> return InitNull
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   593
        , itypeCast
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   594
        , iD >>= return . InitReference
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   595
        ]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   596
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   597
    recField = do
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   598
        i <- iD
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   599
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   600
        char ':'
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   601
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   602
        e <- initExpression
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   603
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   604
        return (i ,e)
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   605
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   606
    table = [
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   607
          [
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   608
             Prefix (char '-' >> return (InitPrefixOp "-"))
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   609
            ,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
   610
          ]
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   611
        , [  Infix (char '*' >> return (InitBinOp "*")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   612
           , Infix (char '/' >> return (InitBinOp "/")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   613
           , Infix (try (string "div") >> return (InitBinOp "div")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   614
           , Infix (try (string "mod") >> return (InitBinOp "mod")) AssocLeft
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   615
           , Infix (try $ string "and" >> return (InitBinOp "and")) AssocLeft
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   616
           , Infix (try $ string "shl" >> return (InitBinOp "shl")) AssocNone
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   617
           , Infix (try $ string "shr" >> return (InitBinOp "shr")) AssocNone
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   618
          ]
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   619
        , [  Infix (char '+' >> return (InitBinOp "+")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   620
           , Infix (char '-' >> return (InitBinOp "-")) AssocLeft
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   621
           , Infix (try $ string "or" >> return (InitBinOp "or")) AssocLeft
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   622
           , Infix (try $ string "xor" >> return (InitBinOp "xor")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   623
          ]
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   624
        , [  Infix (try (string "<>") >> return (InitBinOp "<>")) AssocNone
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   625
           , Infix (try (string "<=") >> return (InitBinOp "<=")) AssocNone
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   626
           , Infix (try (string ">=") >> return (InitBinOp ">=")) AssocNone
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   627
           , Infix (char '<' >> return (InitBinOp "<")) AssocNone
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   628
           , Infix (char '>' >> return (InitBinOp ">")) AssocNone
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   629
           , Infix (char '=' >> return (InitBinOp "=")) AssocNone
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   630
          ]
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   631
        {--, [  Infix (try $ string "and" >> return (InitBinOp "and")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   632
           , Infix (try $ string "or" >> return (InitBinOp "or")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   633
           , Infix (try $ string "xor" >> return (InitBinOp "xor")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   634
          ]
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6836
diff changeset
   635
        , [  Infix (try $ string "shl" >> return (InitBinOp "shl")) AssocNone
608c8b057c3b Improve rendering into C
unc0rr
parents: 6836
diff changeset
   636
           , 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
   637
          ]--}
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   638
        --, [Prefix (try (string "not") >> return (InitPrefixOp "not"))]
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   639
        ]
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   640
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   641
    itypeCast = do
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   642
        t <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) knownTypes
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   643
        i <- parens pas initExpression
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   644
        comments
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6512
diff changeset
   645
        return $ InitTypeCast (Identifier t BTUnknown) i
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   646
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   647
builtInFunction e = do
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   648
    name <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) builtin
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   649
    spaces
6897
a9126661f613 Fix parsing of exit() call without parameters
unc0rr
parents: 6895
diff changeset
   650
    exprs <- option [] $ parens pas $ option [] $ commaSep1 pas $ e
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   651
    spaces
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   652
    return (name, exprs)
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   653
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   654
systemUnit = do
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   655
    string "system;"
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   656
    comments
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   657
    string "type"
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   658
    comments
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   659
    t <- typesDecl
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   660
    string "var"
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   661
    v <- varsDecl True
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   662
    return $ System (t ++ v)
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   663
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   664
redoUnit = do
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   665
    string "redo;"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   666
    comments
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   667
    string "type"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   668
    comments
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   669
    t <- typesDecl
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   670
    string "var"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   671
    v <- varsDecl True
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   672
    return $ Redo (t ++ v)
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   673