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|
module ParseGlue where
data ParseResult a = OkP a | FailP String
type P a = String -> Int -> ParseResult a
thenP :: P a -> (a -> P b) -> P b
m `thenP` k = \ s l ->
case m s l of
OkP a -> k a s l
FailP s -> FailP s
returnP :: a -> P a
returnP m _ _ = OkP m
failP :: String -> P a
failP s s' _ = FailP (s ++ ":" ++ s')
data Token =
TKmodule
| TKdata
| TKnewtype
| TKforall
| TKrec
| TKlet
| TKin
| TKcase
| TKof
| TKcoerce
| TKnote
| TKexternal
| TKwild
| TKoparen
| TKcparen
| TKobrace
| TKcbrace
| TKhash
| TKeq
| TKcoloncolon
| TKstar
| TKrarrow
| TKlambda
| TKbiglambda
| TKat
| TKdot
| TKquestion
| TKsemicolon
| TKname String
| TKcname String
| TKinteger Integer
| TKrational Rational
| TKstring String
| TKchar Char
| TKEOF
|
