Files
gf-core/src/GF/UseGrammar/Transfer.hs

30 lines
747 B
Haskell

module Transfer where
import Grammar
import Values
import AbsCompute
import qualified GFC
import LookAbs
import MMacros
import TypeCheck
import Ident
import Operations
import Monad
-- linearize, parse, etc, by transfer. AR 9/10/2003
doTransfer :: GFC.CanonGrammar -> Ident -> Tree -> Err Tree
doTransfer gr tra t = do
cat <- liftM snd $ val2cat $ valTree t
f <- lookupTransfer gr tra cat
e <- compute gr $ App f $ tree2exp t
annotate gr e
useByTransfer :: (Tree -> Err a) -> GFC.CanonGrammar -> Ident -> (Tree -> Err a)
useByTransfer lin gr tra t = doTransfer gr tra t >>= lin
mkByTransfer :: (a -> Err [Tree]) -> GFC.CanonGrammar -> Ident -> (a -> Err [Tree])
mkByTransfer parse gr tra s = parse s >>= mapM (doTransfer gr tra)