Switch to new options handling.

This changes lots of stuff, let me know if it broke anything.

Comments:

- We use a local hacked version of GetOpt that allows long forms of commands to start with a single dash. This breaks other parts of GetOpt. For example, arguments to short options now require a =, and does not allo pace after the option character.

- The new command parsing is currently only used for the program command line, pragmas and the arguments for the 'i' shell command.

- I made a quick hack for the options for showTerm, which currently makes it impossible to use the print style flags for cc. This will be replaced by a facility for parsing command-specific options.

- The verbosity handling is broken in some places. I will fix that in a later patch.

src-3.0/GFI.hs

@@ -3,12 +3,12 @@ module GFI (mainGFI) where
 import GF.Command.Interpreter
 import GF.Command.Importing
 import GF.Command.Commands
+import GF.Data.ErrM
 import GF.GFCC.API
-
 import GF.Grammar.API  -- for cc command
 
 import GF.Infra.UseIO
-import GF.Infra.Option ---- Haskell's option lib
+import GF.Infra.Option
 import GF.System.Readline (fetchCommand)
 
 import System.CPUTime
@@ -17,10 +17,10 @@ import Data.Version
 import Paths_gf
 
 
-mainGFI :: [String] -> IO ()
-mainGFI xx = do
+mainGFI :: Options -> [FilePath] -> IO ()
+mainGFI opts files = do
   putStrLn welcome
-  env <- importInEnv emptyMultiGrammar xx
+  env <- importInEnv emptyMultiGrammar opts files
   loop (GFEnv emptyGrammar env [] 0)
   return ()
 
@@ -31,25 +31,26 @@ loop gfenv0 = do
   s <- fetchCommand (prompt env)
   let gfenv = gfenv0 {history = s : history gfenv0}
   case words s of
-
   -- special commands, requiring source grammar in env
     "cc":ws -> do
-       let (opts,term) = getOptions "-" ws
+       -- FIXME: add options parsing for cc arguments
+       let (opts,term) = (TermPrintDefault, ws)
        let t = pTerm (unwords term) >>= checkTerm sgr >>= computeTerm sgr
        err putStrLn (putStrLn . showTerm opts) t ---- make pipable
        loopNewCPU gfenv
-
     "i":args -> do
-      let (opts,files) = getOptions "-" args
-      case opts of
-        _ | oElem (iOpt "retain") opts -> do
-          src <- importSource sgr opts files
-          loopNewCPU $ gfenv {sourcegrammar = src}
+      case parseOptions args of
+        Ok (opts,files) 
+         | flag optRetainResource opts -> 
+             do src <- importSource sgr opts files
+                loopNewCPU $ gfenv {sourcegrammar = src}
+         | otherwise ->
+             do env1 <- importInEnv (multigrammar env) opts files
+                loopNewCPU $ gfenv {commandenv = env1}
+        Bad err -> do putStrLn $ "Command parse error: " ++ err
+                      loopNewCPU gfenv
 
   -- other special commands, working on GFEnv
-        _  -> do
-          env1 <- importInEnv (multigrammar env) args
-          loopNewCPU $ gfenv {commandenv = env1}
     "e":_ -> loopNewCPU $ gfenv {commandenv=env{multigrammar=emptyMultiGrammar}}
     "ph":_ -> mapM_ putStrLn (reverse (history gfenv0)) >> loopNewCPU gfenv
     "q":_  -> putStrLn "See you." >> return gfenv
@@ -64,8 +65,8 @@ loopNewCPU gfenv = do
   putStrLn (show ((cpu' - cputime gfenv) `div` 1000000000) ++ " msec")
   loop $ gfenv {cputime = cpu'}
 
-importInEnv mgr0 xx = do
-  let (opts,files) = getOptions "-" xx
+importInEnv :: MultiGrammar -> Options -> [FilePath] -> IO CommandEnv
+importInEnv mgr0 opts files = do
   mgr1 <- case files of
     [] -> return mgr0
     _  -> importGrammar mgr0 opts files