module gopt
-import StdGeneric, StdOverloaded, StdClass, StdArray, StdChar, StdBool, StdList, StdMisc, StdFunc, StdTuple, StdString
+import StdEnv, StdGeneric
import Data.List
import Data.Error
:: Opt a
= BinaryFlag (a -> a) (a -> a)
| Flags [(String, ([String] a -> (MaybeError [String] (a, [String]))))]
- | Positionals [String a -> (MaybeError [String] a)]
+ | Positionals [(String, String a -> (MaybeError [String] a))]
| SubParsers [(String, Opt a)]
class bifmap m :: (a -> b) (b -> a) (m b) -> m a
where
bifmap fr to (BinaryFlag set unset) = BinaryFlag (to o set o fr) (to o unset o fr)
bifmap fr to (Flags fs) = Flags $ map (appSnd $ (\f s->fm (appFst to) o f s o fr)) fs
- bifmap fr to (Positionals fs) = Positionals $ map (fmap $ \f->fm to o f o fr) fs
+ bifmap fr to (Positionals fs) = Positionals $ map (appSnd $ fmap $ \f->fm to o f o fr) fs
bifmap fr to (SubParsers sp) = SubParsers $ map (appSnd (bifmap fr to)) sp
fm f (Ok a) = Ok (f a)
generic gopt a *! :: Opt a
gopt{|Bool|} = BinaryFlag (const True) (const False)
-gopt{|Int|} = Positionals [\s _->if (and [isDigit c\\c<-:s]) (Ok $ toInt s) (Error ["Not an integer"])]
-gopt{|Char|} = Positionals [\s _->if (size s == 1) (Ok s.[0]) (Error ["Not a single character"])]
-gopt{|String|} = Positionals [\s _->Ok s]
+gopt{|Int|} = Positionals [("INT", \s _->if (and [isDigit c\\c<-:s]) (Ok $ toInt s) (Error ["Not an integer"]))]
+gopt{|Char|} = Positionals [("CHAR", \s _->if (size s == 1) (Ok s.[0]) (Error ["Not a single character"]))]
+gopt{|String|} = Positionals [("STRING", \s _->Ok s)]
gopt{|RECORD|} f = bifmap (\(RECORD a)->a) RECORD f
gopt{|OBJECT|} f = bifmap (\(OBJECT a)->a) OBJECT f
gopt{|FIELD of {gfd_name}|} f = case f of
//Child is another record, make the arguments ddstyle TODO
Flags x = mapF (Flags x)
//Child is a subparser
+ SubParsers ps = mapF (Flags [(gfd_name, pOpts (SubParsers ps))])
x = abort "Subparsers not supported"
where
mapF :: ((m a) -> m (FIELD a)) | bifmap m
mapF = bifmap (\(FIELD a)->a) FIELD
ptoarg [p] [] i = Error ["Not enough arguments for " +++ gfd_name]
- ptoarg [p:ps] [a:as] i = p a i >>= ptoarg ps as
+ ptoarg [(_, p):ps] [a:as] i = p a i >>= ptoarg ps as
ptoarg [] as i = Ok (i, as)
gopt{|PAIR|} l r = case (l, r) of
(Positionals pl, Positionals pr)
= Positionals
- $ map (combine PFst appPFst) pl
- ++ map (combine PSnd appPSnd) pr
+ $ map (appSnd $ combine PFst appPFst) pl
+ ++ map (appSnd $ combine PSnd appPSnd) pr
(Flags fl, Flags fr)
= Flags
$ map (appSnd $ combine` PFst appPFst) fl
++ map (appSnd $ combine` PSnd appPSnd) fr
+ (x, y) = abort $ "gopt{|PAIR|}: " +++ consPrint x +++ " " +++ consPrint y
where
appPFst f (PAIR x y) = PAIR (f x) y
appPSnd f (PAIR x y) = PAIR x (f y)
gopt{|(,)|} l r = case (l, r) of
(Positionals pl, Positionals pr)
= Positionals
- $ map (combine fst appFst) pl
- ++ map (combine snd appSnd) pr
+ $ map (appSnd $ combine fst appFst) pl
+ ++ map (appSnd $ combine snd appSnd) pr
gopt{|(,,)|} f s t = case (f, s, t) of
(Positionals pf, Positionals ps, Positionals pt)
= Positionals
- $ map (combine fst3 appFst3) pf
- ++ map (combine snd3 appSnd3) ps
- ++ map (combine thd3 appThd3) pt
+ $ map (appSnd $ combine fst3 appFst3) pf
+ ++ map (appSnd $ combine snd3 appSnd3) ps
+ ++ map (appSnd $ combine thd3 appThd3) pt
consPrint (Positionals x) = "Positionals"
consPrint (BinaryFlag x _) = "BinaryFlag"
consPrint (Flags x) = "Flags"
consPrint (SubParsers x) = "SubParsers"
-
-parseOpts :: (Opt a) [String] a -> MaybeError [String] (a, [String])
-parseOpts (Positionals [p:ps]) [] a = Error [toString (length [p:ps]) +++ " positional arguments required"]
-parseOpts (Positionals [p:ps]) [arg:args] a = p arg a >>= parseOpts (Positionals ps) args
-parseOpts (SubParsers ps) [arg:args] a = case find (\(l,p)->l==arg) ps of
+
+parseOpts :: [String] a -> MaybeError [String] (a, [String]) | gopt{|*|} a
+parseOpts args a = pOpts gopt{|*|} args a
+
+pOpts :: (Opt a) [String] a -> MaybeError [String] (a, [String])
+pOpts (Positionals [p:ps]) [] a = Error [toString (length [p:ps]) +++ " positional arguments required"]
+pOpts (Positionals [p:ps]) [arg:args] a = (snd p) arg a >>= pOpts (Positionals ps) args
+pOpts (SubParsers ps) [arg:args] a = case find (\(l,p)->l==arg) ps of
Nothing = Error ["Unrecognized subcommand"]
- Just (l, p) = parseOpts p args a
-parseOpts (SubParsers ps) [] a = Error ["One of these subcommands required: " +++ join ", " (map fst ps)]
-parseOpts (Flags fs) [arg:args] a
+ Just (l, p) = pOpts p args a
+pOpts (SubParsers ps) [] a = Error ["One of these subcommands required: " +++ join ", " (map fst ps)]
+pOpts (Flags fs) [arg:args] a
| not (startsWith "--" arg) = Ok (a, [arg:args])
= case find (\(l,p)->"--" +++ l == arg) fs of
Nothing = Error ["Unrecognized option: " +++ arg]
- Just (l, p) = p args a >>= \(a, args)->parseOpts (Flags fs) args a
-parseOpts _ args a = Ok (a, args)
+ Just (l, p) = p args a >>= \(a, args)->pOpts (Flags fs) args a
+pOpts (BinaryFlag yes no) args a
+ = pOpts (Positionals [("BOOL", \s v->
+ if (s == "True")
+ (Ok (yes v))
+ (if (s == "False")
+ (Ok (no v))
+ (Error ["Not True or False"])
+ )
+ )]) args a
+pOpts t args a = Ok (a, args)
+
+pHelp :: (Opt a) -> [String]
+pHelp (Positionals []) = []
+pHelp (Positionals [(i, _):ps]) = [i, " ":pHelp $ Positionals ps]
+pHelp (SubParsers ps) =
+ flatten
+ [[n, " ":pHelp opt] ++ ["\n"]
+ \\(n, opt)<-ps
+ ]
+pHelp (Flags fs) =
+ ["Flags\n"
+ :
+ flatten
+ [["--",f, "\n"]
+ \\(f, p)<-fs
+ ]
+ ]
:: T =
{ field :: (Int,Int)
, field2 :: String
, t2 :: C
}
-:: T2 = {f :: Int}
-:: C = A Int | B | C
-//:: T2 = T Int Int
+:: T2 = {f :: Int, f2 :: Bool}
+:: C = A Int | B | C Bool
+
+:: ADT
+ = ADT1
+ | ADT2 Int String
+
derive binumap Opt, [], (,), MaybeError
-derive gopt T, T2, C
+derive gopt T, T2, ADT, C
Start w
# ([argv0:args], w) = getCommandLine w
-= parseOpts t args B//{field=(0, 0),field2="",t2=A}
+//= pHelp opt
+= parseOpts args {field=(0, 0),field2="",t2=A 4}
-t :: Opt C
-t = gopt{|*|}
+opt :: Opt T
+opt = gopt{|*|}
repositories / clean-tests.git / blobdiff