a number of new API functions for the concrete syntax.

src/runtime/haskell/PGF2.hsc

@@ -433,7 +433,12 @@ complete = error "TODO: complete"
 
 -- | Returns True if there is a linearization defined for that function in that language
 hasLinearization :: Concr -> Fun -> Bool
-hasLinearization = error "TODO: linearize"
+hasLinearization c name =
+  unsafePerformIO $
+  withText name $ \c_name ->
+  withForeignPtr (c_revision c) $ \c_revision -> do
+    c_res <- withPgfExn "hasLinearization" (pgf_has_linearization (c_db c) c_revision c_name)
+    return (c_res /= 0)
 
 -- | Linearizes an expression as a string in the language
 linearize :: Concr -> Expr -> String

src/runtime/haskell/PGF2/FFI.hsc

@@ -139,8 +139,16 @@ foreign import ccall pgf_clone_concrete :: Ptr PgfDB -> Ptr PGF -> Ptr PgfText -
 
 foreign import ccall pgf_drop_concrete :: Ptr PgfDB -> Ptr PGF -> Ptr PgfText -> Ptr PgfExn -> IO ()
 
+foreign import ccall pgf_create_lincat :: Ptr PgfDB -> Ptr PGF -> Ptr Concr -> Ptr PgfText -> CSize -> Ptr PgfExn -> IO ()
+
+foreign import ccall pgf_drop_lincat :: Ptr PgfDB -> Ptr Concr -> Ptr PgfText -> Ptr PgfExn -> IO ()
+
 foreign import ccall pgf_create_lin :: Ptr PgfDB -> Ptr PGF -> Ptr Concr -> Ptr PgfText -> CSize -> Ptr PgfExn -> IO ()
 
+foreign import ccall pgf_drop_lin :: Ptr PgfDB -> Ptr Concr -> Ptr PgfText -> Ptr PgfExn -> IO ()
+
+foreign import ccall pgf_has_linearization :: Ptr PgfDB -> Ptr Concr -> Ptr PgfText -> Ptr PgfExn -> IO CInt
+
 foreign import ccall pgf_get_global_flag :: Ptr PgfDB -> Ptr PGF -> Ptr PgfText -> Ptr PgfUnmarshaller -> Ptr PgfExn -> IO (StablePtr Literal)
 
 foreign import ccall pgf_set_global_flag :: Ptr PgfDB -> Ptr PGF -> Ptr PgfText -> StablePtr Literal -> Ptr PgfMarshaller -> Ptr PgfExn -> IO ()

src/runtime/haskell/PGF2/Transactions.hsc

@@ -20,7 +20,10 @@ module PGF2.Transactions
           , alterConcrete
           , dropConcrete
           , setConcreteFlag
+          , createLincat
+          , dropLincat
           , createLin
+          , dropLin
           ) where
 
 import PGF2.FFI
@@ -210,7 +213,22 @@ data PArg = PArg [(LIndex,LIndex)] {-# UNPACK #-} !LParam
 data Production = Production [PArg] LParam [[Symbol]]
                  deriving (Eq,Show)
 
+createLincat :: Cat -> [String] -> Transaction Concr ()
+createLincat name fields = Transaction $ \c_db c_abstr c_revision c_exn ->
+  withText name $ \c_name ->
+    pgf_create_lincat c_db c_abstr c_revision c_name (fromIntegral (length fields)) c_exn
+
+dropLincat :: Cat -> Transaction Concr ()
+dropLincat name = Transaction $ \c_db _ c_revision c_exn ->
+  withText name $ \c_name ->
+    pgf_drop_lincat c_db c_revision c_name c_exn
+
 createLin :: Fun -> [Production] -> Transaction Concr ()
 createLin name rules = Transaction $ \c_db c_abstr c_revision c_exn ->
   withText name $ \c_name ->
     pgf_create_lin c_db c_abstr c_revision c_name (fromIntegral (length rules)) c_exn
+
+dropLin :: Fun -> Transaction Concr ()
+dropLin name = Transaction $ \c_db _ c_revision c_exn ->
+  withText name $ \c_name ->
+    pgf_drop_lin c_db c_revision c_name c_exn