tools/pas2c/PascalParser.hs
author unc0rr
Sat, 15 Jun 2013 23:44:37 +0400
branchwebgl
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Allow building with modern 'base' package
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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 <- liftM (flip Identifier BTUnknown) (identifier pas)
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    comments
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    return i
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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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    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 ']'
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            comments
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   145
            return r
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unc0rr
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   146
        string "of"
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671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
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   147
        comments
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unc0rr
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   148
        t <- typeDecl
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   149
        if null r then
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            return $ ArrayDecl Nothing t
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   151
            else
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            return $ foldr (\a b -> ArrayDecl (Just a) b) (ArrayDecl (Just $ head r) t) (tail r)
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   153
    recordDecl = do
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unc0rr
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   154
        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
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   155
            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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   156
            string "record"
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   157
        comments
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   158
        vs <- varsDecl True
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unc0rr
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   159
        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
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   160
            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
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   161
            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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   162
            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
   163
            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
   164
            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
   165
            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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   166
            many unionCase
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   167
        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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   168
        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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   169
    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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   170
        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
   171
        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
   172
        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
   173
        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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   174
        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
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   175
    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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   176
        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
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   177
        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
   178
        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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   179
        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
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   180
        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
   181
        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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   182
        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
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   183
    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
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   184
    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
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   185
        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
   186
        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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   187
        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
   188
        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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   189
        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
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   190
            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
   191
            comments
1ef4192aa80d - Parse unions, sets, function type, packed arrays and some more imporvements to the parser. Now it parses uVariable, uConsts and even SDLh.pas
unc0rr
parents: 6417
diff changeset
   192
            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
   193
            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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diff changeset
   194
            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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   195
            else
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8fadeefdd352 Just some further work
unc0rr
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   196
            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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   197
        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
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diff changeset
   198
        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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   199
        return $ FunctionType ret vs
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0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many 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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   200
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   201
typesDecl = many (aTypeDecl >>= \t -> comments >> return t)
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   202
    where
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   203
    aTypeDecl = do
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   204
        i <- try $ do
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   205
            i <- iD <?> "type declaration"
627b5752733a A try to improve parser move (has regressions)
unc0rr
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   206
            comments
627b5752733a A try to improve parser move (has regressions)
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   207
            char '='
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   208
            return i
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   209
        comments
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   210
        t <- typeDecl
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   211
        comments
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   212
        semi pas
627b5752733a A try to improve parser move (has regressions)
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   213
        comments
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   214
        return $ TypeDeclaration i t
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unc0rr
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   215
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unc0rr
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   216
rangeDecl = choice [
6277
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   217
    try $ rangeft
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   218
    , iD >>= return . Range
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0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many 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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   219
    ] <?> "range declaration"
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   220
    where
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   221
    rangeft = do
6388
14718b2685a3 Recognize some built-in functions
unc0rr
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   222
    e1 <- initExpression
6277
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   223
    string ".."
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   224
    e2 <- initExpression
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   225
    return $ RangeFromTo e1 e2
59b5b19e6604 Remove trailing spaces
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   226
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   227
typeVarDeclaration isImpl = (liftM concat . many . choice) [
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unc0rr
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   228
    varSection,
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   229
    constSection,
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   230
    typeSection,
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   231
    funcDecl,
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   232
    operatorDecl
6270
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unc0rr
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diff changeset
   233
    ]
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many 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
    where
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   235
00b1facf2805 merge xymeng pas2c
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   236
    fixInit v = concat $ map (\x -> case x of
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   237
                    VarDeclaration a b (ids, t) c ->
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   238
                        let typeId = (Identifier ((\(Identifier i _) -> i) (head ids) ++ "_tt") BTUnknown) in
00b1facf2805 merge xymeng pas2c
koda
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   239
                        let res =  [TypeDeclaration typeId t, VarDeclaration a b (ids, (SimpleType typeId)) c] in
00b1facf2805 merge xymeng pas2c
koda
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   240
                        case t of
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   241
                            RecordType _ _ -> res -- create a separated type declaration
00b1facf2805 merge xymeng pas2c
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   242
                            ArrayDecl _ _ -> res
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   243
                            _ -> [x]
00b1facf2805 merge xymeng pas2c
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   244
                    _ -> error ("checkInit:\n" ++ (show v))) v
00b1facf2805 merge xymeng pas2c
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   245
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0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many 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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   246
    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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   247
        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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   248
        comments
6443
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unc0rr
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   249
        v <- varsDecl1 True <?> "variable declaration"
6272
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   250
        comments
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00b1facf2805 merge xymeng pas2c
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   251
        return $ fixInit v
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unc0rr
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   252
f1b4f37dba22 Many improvements to the parser
unc0rr
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   253
    constSection = do
f1b4f37dba22 Many improvements to the parser
unc0rr
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   254
        try $ string "const"
f1b4f37dba22 Many improvements to the parser
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   255
        comments
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   256
        c <- constsDecl <?> "const declaration"
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   257
        comments
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   258
        return $ fixInit c
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   259
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   260
    typeSection = do
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   261
        try $ string "type"
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   262
        comments
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   263
        t <- typesDecl <?> "type declaration"
6277
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   264
        comments
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   265
        return t
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unc0rr
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diff changeset
   266
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   267
    operatorDecl = do
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   268
        try $ string "operator"
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   269
        comments
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   270
        i <- manyTill anyChar space
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   271
        comments
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   272
        vs <- parens pas $ varsDecl False
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   273
        comments
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   274
        rid <- iD
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   275
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
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   276
        char ':'
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   277
        comments
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   278
        ret <- typeDecl
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   279
        comments
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   280
        return ret
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   281
        char ';'
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   282
        comments
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   283
        forward <- liftM isJust $ optionMaybe (try (string "forward;") >> comments)
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   284
        inline <- liftM (any (== "inline;")) $ many functionDecorator
6443
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   285
        b <- if isImpl && (not forward) then
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   286
                liftM Just functionBody
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   287
                else
23364a5fcc86 - Help parser by dropping that insane formatting syntax in str function
unc0rr
parents: 6426
diff changeset
   288
                return Nothing
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   289
        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
   290
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   291
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
   292
    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
   293
        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
   294
        comments
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   295
        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
   296
        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
   297
        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
   298
        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
   299
            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
   300
            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
   301
            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
   302
            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
   303
            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
   304
            else
6836
42382794b73f - Treat strings as arrays of chars
unc0rr
parents: 6826
diff changeset
   305
            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
   306
        char ';'
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   307
        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
   308
        forward <- liftM isJust $ optionMaybe (try (string "forward;") >> comments)
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   309
        decorators <- many functionDecorator
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   310
        let inline = any (== "inline;") decorators
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   311
            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
   312
        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
   313
                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
   314
                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
   315
                return Nothing
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   316
        return $ [FunctionDeclaration i inline overload ret vs b]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   317
7513
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   318
    functionDecorator = do
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   319
        d <- choice [
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   320
            try $ string "inline;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   321
            , try $ caseInsensitiveString "cdecl;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   322
            , try $ string "overload;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   323
            , try $ string "export;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   324
            , try $ string "varargs;"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   325
            , try (string "external") >> comments >> iD >> optional (string "name" >> comments >> stringLiteral pas)>> string ";"
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   326
            ]
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   327
        comments
39866eb9e4a6 Keep inlining
unc0rr
parents: 7429
diff changeset
   328
        return d
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   329
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   330
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
   331
program = do
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   332
    string "program"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   333
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   334
    name <- iD
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   335
    (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
   336
    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
   337
    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
   338
    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
   339
    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
   340
    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
   341
    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
   342
    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
   343
    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
   344
    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
   345
    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
   346
    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
   347
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. 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
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
   349
    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
   350
    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
   351
    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
   352
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   353
    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
   354
    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
   355
    return $ Interface u (TypesAndVars tv)
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   356
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   357
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
   358
    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
   359
    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
   360
    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
   361
    comments
6277
627b5752733a A try to improve parser move (has regressions)
unc0rr
parents: 6275
diff changeset
   362
    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
   363
    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
   364
    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
   365
    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
   366
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   367
expression = do
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   368
    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
   369
    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
   370
    term = comments >> choice [
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6512
diff changeset
   371
        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
   372
        , try (parens pas $ expression >>= \e -> notFollowedBy (comments >> char '.') >> return e)
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   373
        , 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
   374
        , try $ integer pas >>= \i -> notFollowedBy (char '.') >> (return . NumberLiteral . show) i
6452
7c6f9b6672dc More work on the parser
unc0rr
parents: 6450
diff changeset
   375
        , float pas >>= return . FloatLiteral . show
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   376
        , 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
   377
        , try (string "_S" >> stringLiteral pas) >>= return . StringLiteral
7070
8d4189609e90 oops, wrong type
unc0rr
parents: 7069
diff changeset
   378
        , 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
   379
        , stringLiteral pas >>= return . strOrChar
6444
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   380
        , try (string "#$") >> many hexDigit >>= \c -> comments >> return (HexCharCode c)
6417
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   381
        , char '#' >> many digit >>= \c -> comments >> return (CharCode c)
eae5900fd8a4 Improve parser a bit, preparation to parsing whole program at once and compiling it into single C file
unc0rr
parents: 6414
diff changeset
   382
        , char '$' >> 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
   383
        --, char '-' >> expression >>= return . PrefixOp "-"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   384
        , char '-' >> reference >>= return . PrefixOp "-" . Reference
7762
d2fd8040534f Better error handling
unc0rr
parents: 7690
diff changeset
   385
        , (try $ string "not" >> notFollowedBy comments) >> unexpected "'not'"
6290
c6245ed6cbc0 Some improvements to the parser
unc0rr
parents: 6277
diff changeset
   386
        , try $ string "nil" >> return Null
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   387
        , 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
   388
        ] <?> "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
   389
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   390
    table = [
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   391
          [  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
   392
           , Prefix (try (char '-') >> return (PrefixOp "-"))]
8020
00b1facf2805 merge xymeng pas2c
koda
parents: 7969
diff changeset
   393
           ,
6290
c6245ed6cbc0 Some improvements to the parser
unc0rr
parents: 6277
diff changeset
   394
          [  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
   395
           , Infix (char '/' >> return (BinOp "/")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   396
           , Infix (try (string "div") >> return (BinOp "div")) AssocLeft
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   397
           , Infix (try (string "mod") >> return (BinOp "mod")) AssocLeft
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   398
           , 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
   399
           , 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
   400
           , 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
   401
           , Infix (try $ string "shr" >> return (BinOp "shr")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   402
          ]
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
   403
        , [  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
   404
           , Infix (char '-' >> return (BinOp "-")) AssocLeft
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   405
           , 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
   406
           , Infix (try $ string "xor" >> return (BinOp "xor")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   407
          ]
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   408
        , [  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
   409
           , 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
   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 (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
   412
           , Infix (char '>' >> return (BinOp ">")) AssocNone
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   413
          ]
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   414
        {-, [  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
   415
             , 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
   416
          ]
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   417
        , [
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   418
             Infix (try $ string "or" >> return (BinOp "or")) AssocLeft
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   419
           , 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
   420
          ]-}
7069
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   421
        , [
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   422
             Infix (char '=' >> return (BinOp "=")) AssocNone
bcf9d8e64e92 pas2c stuff again
unc0rr
parents: 7067
diff changeset
   423
          ]
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
   424
        ]
7067
f98ec3aecf4e A solution to char vs string problem: mark single-letter strings with _S macro
unc0rr
parents: 7066
diff changeset
   425
    strOrChar [a] = CharCode . show . ord $ a
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   426
    strOrChar a = StringLiteral a
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   427
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
   428
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
   429
    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
   430
    comments
6444
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   431
    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
   432
    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
   433
    return $ Phrases p
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   434
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
   435
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
   436
    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
   437
        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
   438
        , 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
   439
        , whileCycle
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   440
        , 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
   441
        , switchCase
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   442
        , withBlock
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   443
        , forCycle
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   444
        , (try $ reference >>= \r -> string ":=" >> return r) >>= \r -> comments >> expression >>= return . Assignment r
6895
31def088a870 Many small improvements to pas2c
unc0rr
parents: 6891
diff changeset
   445
        , 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
   446
        , procCall
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   447
        , 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
   448
        ]
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. 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
    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
   450
    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
   451
    return o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   452
6270
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   453
ifBlock = do
7642
91fce82f9c6f fix parsing of 'if': identifiers can also contain underscores
sheepluva
parents: 7641
diff changeset
   454
    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
   455
    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
   456
    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
   457
    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
   458
    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
   459
    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
   460
    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
   461
    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
   462
    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
   463
        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
   464
        comments
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   465
        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
   466
        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
   467
        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
   468
    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
   469
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   470
whileCycle = 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
   471
    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
   472
    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
   473
    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
   474
    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
   475
    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
   476
    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
   477
    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
   478
    return $ WhileCycle e o
4353
671d66ba3af6 Dumb parser of pascal, and a program which lists unit dependencies
unC0Rr
parents:
diff changeset
   479
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   480
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
   481
    try $ string "with" >> space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   482
    comments
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   483
    rs <- (commaSep1 pas) reference
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   484
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   485
    string "do"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   486
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   487
    o <- phrase
6387
3dcb839b5904 Less code
unc0rr
parents: 6386
diff changeset
   488
    return $ foldr WithBlock o rs
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   489
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   490
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
   491
    try $ string "repeat" >> space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   492
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   493
    o <- many phrase
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   494
    string "until"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   495
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   496
    e <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   497
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   498
    return $ RepeatCycle e o
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   499
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   500
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
   501
    try $ string "for" >> space
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   502
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   503
    i <- iD
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   504
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   505
    string ":="
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   506
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   507
    e1 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   508
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   509
    up <- liftM (== Just "to") $
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   510
            optionMaybe $ choice [
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   511
                try $ string "to"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   512
                , try $ string "downto"
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   513
                ]
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   514
    --choice [string "to", string "downto"]
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   515
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   516
    e2 <- expression
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   517
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   518
    string "do"
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   519
    comments
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   520
    p <- phrase
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   521
    comments
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   522
    return $ ForCycle i e1 e2 p up
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   523
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
   524
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
   525
    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
   526
    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
   527
    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
   528
    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
   529
    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
   530
    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
   531
    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
   532
    o2 <- optionMaybe $ do
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   533
        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
   534
        comments
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   535
        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
   536
        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
   537
        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
   538
    string "end"
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   539
    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
   540
    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
   541
    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
   542
    aCase = do
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   543
        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
   544
        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
   545
        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
   546
        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
   547
        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
   548
        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
   549
        return (e, p)
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   550
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
   551
procCall = do
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   552
    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
   553
    p <- option [] $ (parens pas) parameters
6450
14224c9b4594 - Improvement to the parser
unc0rr
parents: 6444
diff changeset
   554
    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
   555
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   556
parameters = (commaSep pas) expression <?> "parameters"
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   557
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
   558
functionBody = do
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   559
    tv <- typeVarDeclaration True
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   560
    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
   561
    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
   562
    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
   563
    comments
6399
a904c735979c Improve parser and converter
unc0rr
parents: 6397
diff changeset
   564
    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
   565
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. 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
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
   567
    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
   568
        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
   569
            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
   570
            comments
6275
f1b4f37dba22 Many improvements to the parser
unc0rr
parents: 6272
diff changeset
   571
            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
   572
            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
   573
            comments
0a99f73dd8dd Improve pascal parser, now it is able to successfully parse uGame.pas (though it eats all comments). Many things are still missing. Well, it's just a matter of time to implement the rest. All basic work is already done anyway.
unc0rr
parents: 4353
diff changeset
   574
            return u
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   575
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   576
initExpression = buildExpressionParser table term <?> "initialization expression"
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   577
    where
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   578
    term = comments >> choice [
8442
535a00ca0d35 whitespaces and tabs again
koda
parents: 7762
diff changeset
   579
        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
   580
        , 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
   581
        , 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
   582
        , 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
   583
        , parens pas initExpression
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   584
        , try $ integer pas >>= \i -> notFollowedBy (char '.') >> (return . InitNumber . show) i
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   585
        , try $ float pas >>= return . InitFloat . show
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   586
        , try $ integer pas >>= return . InitNumber . show
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   587
        , stringLiteral pas >>= return . InitString
6444
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   588
        , char '#' >> many digit >>= \c -> comments >> return (InitChar c)
eddc1e9bcd81 - Help parser more
unc0rr
parents: 6443
diff changeset
   589
        , 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
   590
        , char '@' >> initExpression >>= \c -> comments >> return (InitAddress c)
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   591
        , 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
   592
        , itypeCast
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   593
        , iD >>= return . InitReference
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   594
        ]
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   595
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   596
    recField = do
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   597
        i <- iD
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   598
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   599
        char ':'
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   600
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   601
        e <- initExpression
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   602
        spaces
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   603
        return (i ,e)
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   604
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   605
    table = [
7066
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   606
          [
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   607
             Prefix (char '-' >> return (InitPrefixOp "-"))
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   608
            ,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
   609
          ]
12cc2bd84b0b Make pas2c even more happier with uGears.c, allow assigning arrays in some cases
unc0rr
parents: 7043
diff changeset
   610
        , [  Infix (char '*' >> return (InitBinOp "*")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   611
           , Infix (char '/' >> return (InitBinOp "/")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   612
           , Infix (try (string "div") >> return (InitBinOp "div")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   613
           , 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
   614
           , 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
   615
           , 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
   616
           , Infix (try $ string "shr" >> return (InitBinOp "shr")) AssocNone
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   617
          ]
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   618
        , [  Infix (char '+' >> return (InitBinOp "+")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   619
           , Infix (char '-' >> return (InitBinOp "-")) AssocLeft
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   620
           , 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
   621
           , Infix (try $ string "xor" >> return (InitBinOp "xor")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   622
          ]
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   623
        , [  Infix (try (string "<>") >> return (InitBinOp "<>")) AssocNone
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 (char '<' >> 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
          ]
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   630
        {--, [  Infix (try $ string "and" >> return (InitBinOp "and")) AssocLeft
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   631
           , Infix (try $ string "or" >> return (InitBinOp "or")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   632
           , Infix (try $ string "xor" >> return (InitBinOp "xor")) AssocLeft
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   633
          ]
6858
608c8b057c3b Improve rendering into C
unc0rr
parents: 6836
diff changeset
   634
        , [  Infix (try $ string "shl" >> return (InitBinOp "shl")) AssocNone
608c8b057c3b Improve rendering into C
unc0rr
parents: 6836
diff changeset
   635
           , 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
   636
          ]--}
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   637
        --, [Prefix (try (string "not") >> return (InitPrefixOp "not"))]
6355
734fed7aefd3 Introduce initialization expressions
unc0rr
parents: 6317
diff changeset
   638
        ]
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   639
6453
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   640
    itypeCast = do
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   641
        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
   642
        i <- parens pas initExpression
11c578d30bd3 Countless imporvements to the parser and countless help to the parser in sources.
unc0rr
parents: 6452
diff changeset
   643
        comments
6618
2d3232069c4b Propagate types on identifiers
unc0rr
parents: 6512
diff changeset
   644
        return $ InitTypeCast (Identifier t BTUnknown) i
7315
59b5b19e6604 Remove trailing spaces
unc0rr
parents: 7070
diff changeset
   645
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   646
builtInFunction e = do
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   647
    name <- choice $ map (\s -> try $ caseInsensitiveString s >>= \i -> notFollowedBy alphaNum >> return i) builtin
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   648
    spaces
6897
a9126661f613 Fix parsing of exit() call without parameters
unc0rr
parents: 6895
diff changeset
   649
    exprs <- option [] $ parens pas $ option [] $ commaSep1 pas $ e
6388
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   650
    spaces
14718b2685a3 Recognize some built-in functions
unc0rr
parents: 6387
diff changeset
   651
    return (name, exprs)
6512
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   652
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   653
systemUnit = do
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   654
    string "system;"
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   655
    comments
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   656
    string "type"
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   657
    comments
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   658
    t <- typesDecl
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   659
    string "var"
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   660
    v <- varsDecl True
0df7f6697939 "System" unit to help converter
unc0rr
parents: 6489
diff changeset
   661
    return $ System (t ++ v)
7429
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   662
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   663
redoUnit = do
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   664
    string "redo;"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   665
    comments
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   666
    string "type"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   667
    comments
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   668
    t <- typesDecl
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   669
    string "var"
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   670
    v <- varsDecl True
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   671
    return $ Redo (t ++ v)
fcf13e40d6b6 Changes to pas2c - unreviewed apart from cursory glance and compile test.
xymeng
parents: 7317
diff changeset
   672