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diff --git a/Text/CTPL.hs b/Text/CTPL.hs
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+++ b/Text/CTPL.hs
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+module Text.CTPL where
+
+import Control.Monad
+import Data.Char
+import Data.Monoid
+import Text.Chatty.Parser
+import Text.Chatty.Parser.Carrier
+import qualified Text.CTPL0 as Null
+
+data Procedure = Procedure { procName :: String, procInstr :: Instruction, procAddr :: Int }
+data CTPLState = CTPLState { definedProcs :: [Procedure] }
+data Exec a = Succ a | NoSuchProc String | SyntaxFault deriving Show
+data CTPL a = CTPL { runCTPL :: CTPLState -> Exec (a, CTPLState, String -> String) }
+
+instance Monad Exec where
+ return a = Succ a
+ (Succ a) >>= f = f a
+ (NoSuchProc s) >>= f = NoSuchProc s
+ SyntaxFault >>= f = SyntaxFault
+
+instance Monad CTPL where
+ return a = CTPL $ \s -> return (a, s, id)
+ m >>= f = CTPL $ \s -> do
+ (a', s', f') <- runCTPL m s
+ (a'', s'', f'') <- runCTPL (f a') s'
+ return (a'', s'', f' . f'')
+
+getState :: (CTPLState -> a) -> CTPL a
+getState f = CTPL $ \s -> return (f s, s, id)
+
+modState :: (CTPLState -> CTPLState) -> CTPL ()
+modState f = CTPL $ \s -> return ((), f s, id)
+
+emit :: String -> CTPL ()
+emit str = CTPL $ \s -> return ((), s, (str++))
+
+getProc :: String -> (Procedure -> a) -> CTPL a
+getProc nm f = do
+ ps <- getState definedProcs
+ case filter (\p -> procName p == nm) ps of
+ [] -> CTPL $ \_ -> NoSuchProc nm
+ [p] -> return (f p)
+
+catchEmission :: CTPL () -> CTPL String
+catchEmission m = CTPL $ \s -> do
+ (_,s',f') <- runCTPL m s
+ return (f' [], s', id)
+
+discardEmission :: CTPL a -> CTPL a
+discardEmission m = CTPL $ \s -> do
+ (a,s',_) <- runCTPL m s
+ return (a, s', id)
+
+data NumSource = AX Int | CK0 Int | Buf NumSource Int | Const Int | Len Int | CP Int deriving Show
+data Instruction = SetAX NumSource
+ | SetCK0 NumSource
+ | SetBuf NumSource NumSource
+ | Call String
+ | PopAX
+ | PopCK
+ | PushAX
+ | PushCK
+ | AXToTape
+ | CK0ToTape
+ | AXFromTape
+ | CK0FromTape
+ | PushTape
+ | PopTape
+ | Walk NumSource
+ | Remove NumSource
+ | Insert NumSource String
+ | Return
+ | IfThenElse Condition Instruction Instruction
+ | UntilDo Condition Instruction
+ | Compound [Instruction]
+ deriving Show
+data Condition = EqAX NumSource
+ | EqCK0 NumSource
+ | LtAX NumSource
+ | LtCK0 NumSource
+ | GtAX NumSource
+ | GtCK0 NumSource
+ | IsUpper NumSource
+ | IsLower NumSource
+ | IsDigit NumSource
+ | IsEob NumSource
+ | Negation Condition
+ | EqCh NumSource [Char]
+ deriving Show
+
+allocProcs :: Int -> [Procedure] -> CTPL [Procedure]
+allocProcs cur [] = return []
+allocProcs cur (Procedure n i _:ps) = do
+ sp <- predictSpace i
+ ps' <- allocProcs (cur+sp) ps
+ return (Procedure n i cur : ps')
+
+-- Always include sign! Don't dump anything if 0
+dumpIncop :: String -> Int -> CTPL ()
+dumpIncop p 0 = return ()
+dumpIncop p i
+ | i < 0 = emit (p ++ show i)
+ | i > 0 = emit (p ++ ['+'] ++ show i)
+
+-- Pad to four digits. That should be sufficient unless you write crazily huge scripts...
+dumpAddr :: Int -> CTPL ()
+dumpAddr i = emit $ let s0 = show i in replicate (4-length s0) '0' ++ s0
+
+predictSpace :: Instruction -> CTPL Int
+predictSpace = liftM length . catchEmission . dumpInstr
+
+splitStr :: String -> [String]
+splitStr [] = []
+splitStr ('$':ss) = "$" : splitStr ss
+splitStr str =
+ let t = takeWhile (/='$') str
+ in if t == str
+ then [t]
+ else t : "$" : splitStr (tail $ dropWhile (/='$') str)
+
+arepl i
+ | i >= 0 = replicate i '>'
+ | otherwise = replicate (-i) '<'
+
+dumpInstr :: Instruction -> CTPL ()
+dumpInstr instr = case instr of
+ -- +#, -#
+ SetAX (AX i) -> dumpIncop [] i
+ -- Dd
+ SetAX (CK0 i) -> emit "Dd" >> dumpIncop [] i
+ -- l
+ SetAX (Buf (CP j) i) -> emit (arepl j) >> emit "l" >> dumpIncop [] i
+ -- Split
+ SetAX (Buf d i) -> dumpInstr (SetAX d) >> emit "ml" >> dumpIncop [] i
+ -- Q0+#
+ SetAX (Const i) -> emit "Q0" >> dumpIncop [] i
+ -- Q0+7Je>0-7J!eQ
+ SetAX (Len i) -> emit "Q0+7Je>0-7J!eQ" >> dumpIncop [] i
+ -- Q
+ SetAX (CP i) -> emit "Q" >> dumpIncop [] i
+ -- C+#, C-#
+ SetCK0 (CK0 i) -> dumpIncop "C" i
+ -- kd
+ SetCK0 (AX i) -> emit "kd" >> dumpIncop "C" i
+ -- Cl
+ SetCK0 (Buf (CP j) i) -> emit (arepl j) >> emit "Cl" >> dumpIncop "C" i
+ -- Split
+ SetCK0 (Buf d i) -> dumpInstr (SetCK0 d) >> emit "CmCl" >> dumpIncop "C" i
+ -- C0C+#
+ SetCK0 (Const i) -> emit "C0" >> dumpIncop "C" i
+ -- C0C+11CJe>C0C-11CJ!eCQ (yeeees, this iiiis long...)
+ SetCK0 (Len i) -> emit "C0C+11CJe>C0C-11CJ!eCQ" >> dumpIncop "C" i
+ -- CQ
+ SetCK0 (CP i) -> emit "CQ" >> dumpIncop "C" i
+ -- Cd [ldck0] Csk
+ SetBuf (CP i) f -> emit "Cd" >> dumpInstr (SetCK0 f) >> emit (arepl i) >> emit "Csk"
+ -- Cd [ldck0] i/<CsyxkCd [ldck0] CmkPpx
+ SetBuf d f -> emit "Cd" >> dumpInstr (SetCK0 f) >> emit "i/<CsyxkCd" >> dumpInstr (SetCK0 d) >> emit "CmkPpx"
+ -- d0+#ct
+ Call str -> do
+ a <- getProc str procAddr
+ emit "d0+"
+ dumpAddr a
+ emit "ct"
+ -- D
+ PopAX -> emit "D"
+ -- k
+ PopCK -> emit "k"
+ -- d
+ PushAX -> emit "d"
+ -- Cd
+ PushCK -> emit "Cd"
+ -- f
+ Return -> emit "f"
+ -- i/<s
+ AXToTape -> emit "i/<s"
+ -- lx
+ AXFromTape -> emit "lx"
+ -- i/<Cs
+ CK0ToTape -> emit "i/<Cs"
+ -- Clx
+ CK0FromTape -> emit "Clx"
+ -- x
+ Remove (CP i) -> emit (arepl i) >> emit "x"
+ -- Cd[ldbuf]Cmkx
+ Remove d -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmkx"
+ -- Nothing :)
+ Walk (CP i) -> emit (arepl i)
+ -- Cd[ldbuf]Cmk
+ Walk d -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk"
+ -- yx
+ PushTape -> emit "yx"
+ -- Pp<
+ PopTape -> emit "Pp<"
+ -- I...$
+ Insert (CP i) str -> emit (arepl i) >> forM_ (splitStr str) (\s -> if s=="$" then emit "i$" else emit ('I':s++"$"))
+ -- Cd[ldbuf]CmkI...$
+ Insert d str -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk" >> forM_ (splitStr str) (\s -> if s=="$" then emit "i$" else emit ('I':s++"$"))
+ -- condInit CdC0C+#CJCk cond condClean elseBranch d0+#Jt condClean ifBranch dD
+ IfThenElse c y n -> do
+ condClean <- discardEmission (dumpCond c "")
+ elseBranch <- catchEmission (emit condClean >> dumpInstr n)
+ ifBranch <- catchEmission (emit condClean >> dumpInstr y >> emit "d")
+ elseBranch2 <- catchEmission (emit "d0" >> dumpIncop [] (length ifBranch) >> emit "Jt")
+ jumper <- catchEmission (emit "CdC0" >> dumpIncop "C" (length elseBranch+length elseBranch2) >> emit "CJCk")
+ dumpCond c jumper
+ emit elseBranch
+ emit elseBranch2
+ emit ifBranch
+ emit "D"
+ -- dD condInit CdC0C+#CJCk cond condClean body d0-#Jt condClean
+ UntilDo c b -> do
+ condClean <- discardEmission (dumpCond c "")
+ bodyPrev <- catchEmission (emit condClean >> dumpInstr b >> emit "d0-XXXXJt")
+ jumper <- catchEmission (emit "CdC0" >> dumpIncop "C" (length bodyPrev) >> emit "CJCk")
+ cond <- catchEmission (dumpCond c jumper >> return ())
+ emit "dD"
+ emit cond
+ emit condClean
+ dumpInstr b
+ emit "d0-"
+ dumpAddr (length cond + length bodyPrev + 1)
+ emit "Jt"
+ emit condClean
+ -- Dispatch Compound
+ Compound is -> mapM_ dumpInstr is
+
+dumpCond :: Condition -> String -> CTPL String
+dumpCond cond jumper = case cond of
+ -- jt (pointless!? -- oh wait, we'll use this for the true const :))
+ EqAX (AX 0) -> emit jumper >> emit "t" >> return ""
+ LtAX (AX i) | i > 0 -> emit jumper >> emit "t" >> return ""
+ GtAX (AX i) | i < 0 -> emit jumper >> emit "t" >> return ""
+ EqCK0 (CK0 0) -> emit jumper >> emit "t" >> return ""
+ LtCK0 (CK0 i) | i > 0 -> emit jumper >> emit "t" >> return ""
+ GtCK0 (CK0 i) | i < 0 -> emit jumper >> emit "t" >> return ""
+ -- j!t (even more pointless!? -- we'll use it for the false const though :))
+ EqAX (AX _) -> emit jumper >> emit "!t" >> return ""
+ LtAX (AX i) | i <= 0 -> emit jumper >> emit "!t" >> return ""
+ GtAX (AX i) | i >= 0 -> emit jumper >> emit "!t" >> return ""
+ EqCK0 (CK0 _) -> emit jumper >> emit "!t" >> return ""
+ LtCK0 (CK0 i) | i <= 0 -> emit jumper >> emit "!t" >> return ""
+ GtCK0 (CK0 i) | i >= 0 -> emit jumper >> emit "!t" >> return ""
+ -- -#j= +#
+ EqAX (CK0 i) -> dumpIncop [] (-i) >> emit jumper >> emit "=" >> catchEmission (dumpIncop [] i)
+ LtAX (CK0 i) -> dumpIncop [] (-i) >> emit jumper >> emit "<" >> catchEmission (dumpIncop [] i)
+ GtAX (CK0 i) -> dumpIncop [] (-i) >> emit jumper >> emit ">" >> catchEmission (dumpIncop [] i)
+ EqCK0 (AX i) -> dumpIncop [] i >> emit jumper >> emit "=" >> catchEmission (dumpIncop [] (-i))
+ LtCK0 (AX i) -> dumpIncop [] i >> emit jumper >> emit ">" >> catchEmission (dumpIncop [] (-i))
+ GtCK0 (AX i) -> dumpIncop [] i >> emit jumper >> emit "<" >> catchEmission (dumpIncop [] (-i))
+ -- -#jz +#
+ EqAX (Const i) -> dumpIncop [] (-i) >> emit jumper >> emit "z" >> catchEmission (dumpIncop [] i)
+ -- CdC0C+#j< k
+ LtAX (Const i) -> emit "CdC0" >> dumpIncop "C" i >> emit jumper >> emit "<" >> return "k"
+ GtAX (Const i) -> emit "CdC0" >> dumpIncop "C" i >> emit jumper >> emit ">" >> return "k"
+ -- C-#jCz C+#
+ EqCK0 (Const i) -> dumpIncop "C" (-i) >> emit jumper >> emit "Cz" >> catchEmission (dumpIncop "C" i)
+ -- i/<s0+#j> lx
+ LtCK0 (Const i) -> emit "i/<s0" >> dumpIncop [] i >> emit jumper >> emit ">" >> return "lx"
+ GtCK0 (Const i) -> emit "i/<s0" >> dumpIncop [] i >> emit jumper >> emit "<" >> return "lx"
+ -- Cd[ldbuf]CmClC+#j= k
+ EqAX (Buf d i) -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "CmCl" >> dumpIncop "C" i >> emit jumper >> emit "=" >> return "k"
+ LtAX (Buf d i) -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "CmCl" >> dumpIncop "C" i >> emit jumper >> emit "<" >> return "k"
+ GtAX (Buf d i) -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "CmCl" >> dumpIncop "C" i >> emit jumper >> emit ">" >> return "k"
+ -- Cd[ldbuf]Cmi/<ks>l+#j= <lx
+ EqCK0 (Buf d i) -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmi/<ks>l" >> dumpIncop [] i >> emit jumper >> emit "=" >> return "<lx"
+ LtCK0 (Buf d i) -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmi/<ks>l" >> dumpIncop [] i >> emit jumper >> emit "<" >> return "<lx"
+ GtCK0 (Buf d i) -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmi/<ks>l" >> dumpIncop [] i >> emit jumper >> emit ">" >> return "<lx"
+ -- d0+7Je>0-7J!eD-#jE +#
+ EqAX (Len i) -> emit "d0+7Je>0-7J!eD" >> dumpIncop [] (-i) >> emit jumper >> emit "E" >> catchEmission (dumpIncop [] i)
+ LtAX (Len i) -> emit "d0+7Je>0-7J!eD" >> dumpIncop [] (-i) >> emit jumper >> emit "g" >> catchEmission (dumpIncop [] i)
+ GtAX (Len i) -> emit "d0+7Je>0-7J!eD" >> dumpIncop [] (-i) >> emit jumper >> emit "l" >> catchEmission (dumpIncop [] i)
+ -- CdC0C+11CJe>C0C-11CJ!ekC-#jCE C+# (no, this is noooot long :p)
+ EqCK0 (Len i) -> emit "CdC0C+11CJe>C0C-11CJ!ek" >> dumpIncop "C" (-i) >> emit jumper >> emit "CE" >> catchEmission (dumpIncop "C" i)
+ LtCK0 (Len i) -> emit "CdC0C+11CJe>C0C-11CJ!ek" >> dumpIncop "C" (-i) >> emit jumper >> emit "Cg" >> catchEmission (dumpIncop "C" i)
+ GtCK0 (Len i) -> emit "CdC0C+11CJe>C0C-11CJ!ek" >> dumpIncop "C" (-i) >> emit jumper >> emit "Cl" >> catchEmission (dumpIncop "C" i)
+ -- Cd[ldbuf]CmkjU, Cd[ldbuf]CmkjL, Cd[ldbuf]CmkjN
+ IsUpper (CP i) -> emit (arepl i) >> emit jumper >> emit "U" >> return ""
+ IsUpper d -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk" >> emit jumper >> emit "U" >> return ""
+ IsLower (CP i) -> emit (arepl i) >> emit jumper >> emit "L" >> return ""
+ IsLower d -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk" >> emit jumper >> emit "L" >> return ""
+ IsDigit (CP i) -> emit (arepl i) >> emit jumper >> emit "N" >> return ""
+ IsDigit d -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk" >> emit jumper >> emit "N" >> return ""
+ IsEob (CP i) -> emit (arepl i) >> emit jumper >> emit "e" >> return ""
+ IsEob d -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk" >> emit jumper >> emit "e" >> return ""
+ -- j!
+ Negation c -> dumpCond c (jumper++"!")
+ -- j|q#!t
+ EqCh (CP i) chs -> emit (arepl i) >> emit jumper >> emit (foldr q "!t" chs) >> return "" where q a b = "|q"++[a]++b
+ -- Cd[ldbuf]Cmkj|q#!t
+ EqCh d chs -> emit "Cd" >> dumpInstr (SetCK0 d) >> emit "Cmk" >> emit jumper >> emit (foldr q "!t" chs) >> return "" where q a b = "|q"++[a]++b
+
+compile :: [Procedure] -> Instruction -> Exec String
+compile ps main = do
+ let s0 = CTPLState (ps++[Procedure [] main 0])
+ (_, _, out) <- flip runCTPL s0 $ do
+ ps <- getState definedProcs
+ ps' <- allocProcs 7 ps
+ modState $ \s -> s{definedProcs=ps'}
+ amain <- getProc [] procAddr
+ emit "+"
+ dumpAddr amain
+ emit "jt"
+ forM_ ps' $ \p -> dumpInstr $ procInstr p
+ return $ out []
+
+multiParse :: ChParser m => m ([Procedure], [Instruction])
+multiParse = do
+ let parseStep = liftM (\p -> ([p],[])) parseProc ??? liftM (\i -> ([],[i])) parseInstr
+ parts <- many parseStep
+ return $ mconcat parts
+
+parseInstr :: ChParser m => m Instruction
+parseInstr = parseAssignment
+ ??? parseReturn
+ ??? parseInsert
+ ??? parseCall
+ ??? parseIf
+ ??? parseLoop
+ ??? parseFor
+ ??? parseWalk
+ ??? parseRemove
+
+parseString :: ChParser m => m String
+parseString = do
+ many white
+ match '"'
+ let char = do
+ k <- request
+ case k of
+ '"' -> pabort
+ '\\' -> request
+ k -> return k
+ cs <- many char
+ match '"'
+ return cs
+
+parseReturn :: ChParser m => m Instruction
+parseReturn = do
+ many white
+ matchs "return"
+ many white
+ match ';'
+ return Return
+
+parseInsert :: ChParser m => m Instruction
+parseInsert = do
+ many white
+ matchs "insert"
+ cs <- parseString
+ many white
+ matchs "at"
+ many white
+ match '['
+ ns <- parseNumSource
+ many white
+ match ']'
+ many white
+ match ';'
+ return $ Insert ns cs
+
+parseRemove :: ChParser m => m Instruction
+parseRemove = do
+ many white
+ matchs "remove";
+ many white
+ match '[';
+ ns <- parseNumSource
+ many white
+ match ']'
+ many white
+ match ';'
+ return $ Remove ns
+
+parseWalk :: ChParser m => m Instruction
+parseWalk = do
+ many white
+ match '['
+ ns <- parseNumSource
+ many white
+ match ']'
+ many white
+ match ';'
+ return $ Walk ns
+
+parseCall :: ChParser m => m Instruction
+parseCall = do
+ many white
+ matchs "call";
+ many white
+ nm <- (:) `liftM` alpha `ap` many anum
+ many white
+ match ';'
+ return $ Call nm
+
+parseAssignment :: ChParser m => m Instruction
+parseAssignment = do
+ many white
+ target <- (matchs "AX" >> return SetAX)
+ ??? (matchs "CK0" >> return SetCK0)
+ ??? do
+ match '['
+ s <- parseNumSource
+ many white
+ match ']'
+ return $ SetBuf s
+ many white
+ match '='
+ ns <- parseNumSource
+ many white
+ match ';'
+ return $ target ns
+
+parseNumSource :: ChParser m => m NumSource
+parseNumSource = do
+ let num = (many white >> match '-' >> liftM negate number)
+ ?? number
+ summand = (many white >> match '-' >> liftM negate number)
+ ?? (many white >> match '+' >> number)
+ ?? (return 0)
+ ax = many white >> matchs "AX" >> liftM AX summand
+ ck0 = many white >> matchs "CK0" >> liftM CK0 summand
+ len = many white >> matchs "LEN" >> liftM Len summand
+ clt = many white >> match '\\' >> liftM (Const . ord) request
+ cst = liftM Const num
+ cp = many white >> matchs "CP" >> liftM CP summand
+ buf = do
+ many white
+ match '['
+ n <- parseNumSource
+ many white
+ match ']'
+ liftM (Buf n) summand
+ ax ??? ck0 ??? cp ??? cst ??? clt ??? buf ??? len
+
+parseProc :: ChParser m => m Procedure
+parseProc = do
+ many white
+ matchs "proc"
+ some white
+ nm <- liftM (:) alpha `ap` many anum
+ many white
+ match '{'
+ is <- many parseInstr
+ many white
+ match '}'
+ let is' = PopAX : is ++ [Return]
+ return $ Procedure nm (Compound is') 0
+
+parseIf :: ChParser m => m Instruction
+parseIf = do
+ many white
+ matchs "if"
+ c <- parseCond
+ many white
+ match '{'
+ ifBranch <- many parseInstr
+ many white
+ match '}'
+ let parseElse = do
+ many white
+ matchs "else"
+ many white
+ match '{'
+ elseBranch <- many parseInstr
+ many white
+ match '}'
+ return elseBranch
+ elseBranch <- parseElse ??? return []
+ return $ IfThenElse c (Compound ifBranch) (Compound elseBranch)
+
+parseLoop :: ChParser m => m Instruction
+parseLoop = do
+ many white
+ lt <- (matchs "until" >> return UntilDo) ??? (matchs "while" >> return (UntilDo . Negation))
+ c <- parseCond
+ many white
+ match '{'
+ body <- many parseInstr
+ many white
+ match '}'
+ return $ lt c $ Compound body
+
+parseFor :: ChParser m => m Instruction
+parseFor = do
+ many white
+ matchs "for"
+ start <- parseNumSource
+ many white
+ (step, cond) <- (matchs "to" >> return (1, GtAX)) ??? (matchs "downto" >> return (-1, LtAX))
+ end <- parseNumSource
+ many white
+ match '{'
+ body <- many parseInstr
+ many white
+ match '}'
+ return $ Compound [PushCK, SetCK0 end, AXToTape, PushTape, CK0ToTape, PushTape, PopCK, PushCK, SetAX start, PopTape, CK0FromTape, PopTape,
+ UntilDo (cond $ CK0 0) $ Compound ([PushAX, AXFromTape]++body++[SetCK0 $ CK0 step, AXToTape, PopAX]), AXFromTape, PopCK]
+
+parseCond :: ChParser m => m Condition
+parseCond = parseNot ??? parseIsLower ??? parseEq ??? parseEqCh ??? parseLt ??? parseGt
+ where
+ parseIsLower = do
+ many white
+ ctr <- (matchs "lowercase?" >> return IsLower)
+ ??? (matchs "uppercase?" >> return IsUpper)
+ ??? (matchs "digit?" >> return IsDigit)
+ ??? (matchs "end?" >> return IsEob)
+ many white
+ match '['
+ ns <- parseNumSource
+ many white
+ match ']'
+ return $ ctr ns
+ parseNot = do
+ many white
+ matchs "not"
+ Negation `liftM` parseCond
+ parseEq = do
+ many white
+ reg <- (matchs "AX" >> return EqAX) ??? (matchs "CK0" >> return EqCK0)
+ many white
+ match '='
+ ns <- parseNumSource
+ return $ reg ns
+ parseLt = do
+ many white
+ reg <- (matchs "AX" >> return LtAX) ??? (matchs "CK0" >> return LtCK0)
+ many white
+ match '<'
+ ns <- parseNumSource
+ return $ reg ns
+ parseGt = do
+ many white
+ reg <- (matchs "AX" >> return GtAX) ??? (matchs "CK0" >> return GtCK0)
+ many white
+ match '>'
+ ns <- parseNumSource
+ return $ reg ns
+ parseEqCh = do
+ many white
+ match '['
+ ns <- parseNumSource
+ many white
+ match ']'
+ many white
+ matchs "in"
+ chs <- parseString
+ return $ EqCh ns chs
+
+parse :: String -> [] ([Procedure], [Instruction])
+parse s = runCarrierT s multiParse
+
+compileCTPL :: String -> Exec String
+compileCTPL s = case parse s of
+ [] -> SyntaxFault
+ (ps, is):_ -> compile ps (Compound is)
+
+evalCTPL :: String -> String -> Int -> Null.Exec String
+evalCTPL program buffer limit =
+ case compileCTPL program of
+ Succ bc -> Null.evalCTPL0 bc buffer limit
+ _ -> Null.SynViol