import Test.Tasty.HUnit
import Control.Applicative (Applicative(..))
-import qualified Control.Applicative as Alt
import Control.Monad
-import qualified Data.Char as Char
import Data.Semigroup ((<>))
import Data.String (IsString(..))
-import qualified Data.Text as Text
import Prelude hiding (any, (^), exp)
+import qualified Control.Applicative as Gram_AltApp
+import qualified Data.Char as Char
+import qualified Data.Text as Text
import qualified Text.Megaparsec as P
import Language.Symantic.Grammar
where cats = unicode_categories cat
range (l, h) = P.satisfy $ \c -> l <= c && c <= h
but (Terminal f) (Terminal p) = Terminal $ P.notFollowedBy (P.try p) *> f
-instance ParsecC e s => Alter (P.ParsecT e s m) where
- empty = Alt.empty
- (<+>) = (Alt.<|>)
+instance ParsecC e s => Gram_Alt (P.ParsecT e s m) where
+ empty = Gram_AltApp.empty
+ (<+>) = (Gram_AltApp.<|>)
choice = P.choice
-instance ParsecC e s => Try (P.ParsecT e s m) where
+instance ParsecC e s => Gram_Try (P.ParsecT e s m) where
try = P.try
instance ParsecC e s => Gram_RegR (P.ParsecT e s m) where
Terminal f .*> Reg x = Reg $ f <*> x
instance ParsecC e s => Gram_RegL (P.ParsecT e s m) where
Reg f <*. Terminal x = Reg $ f <*> x
-instance ParsecC e s => App (P.ParsecT e s m)
-instance ParsecC e s => Alt (P.ParsecT e s m)
+instance ParsecC e s => Gram_App (P.ParsecT e s m)
+instance ParsecC e s => Gram_AltApp (P.ParsecT e s m)
instance ParsecC e s => Gram_CF (P.ParsecT e s m) where
CF f <& Reg p = CF $ P.lookAhead f <*> p
Reg f &> CF p = CF $ P.lookAhead f <*> p
CF f `minus` Reg p = CF $ P.notFollowedBy (P.try p) *> f
-instance ParsecC e s => Gram_Meta P.SourcePos (P.ParsecT e s m) where
- metaG p = do
- pos <- P.getPosition
- ($ pos) <$> p
-instance ParsecC e s => Gram_Lexer (P.ParsecT e s m)
+instance ParsecC e s => Gram_Comment (P.ParsecT e s m)
elide :: Text.Text -> String
elide s | Text.length s > 42 = take 42 (Text.unpack s) <> ['…']