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/GF/Grammar/API.hs

@@ -5,7 +5,8 @@ module GF.Grammar.API (
   prTerm,
   checkTerm,
   computeTerm,
-  showTerm
+  showTerm,
+  TermPrintStyle(..)
   ) where
 
 import GF.Source.ParGF
@@ -52,9 +53,15 @@ checkTermAny gr m t = do
 computeTerm :: Grammar -> Term -> Err Term
 computeTerm = computeConcrete
 
-showTerm :: Options -> Term -> String
-showTerm opts t
-  | oElem (iOpt "table")  opts = unlines [p +++ s | (p,s) <- prTermTabular t]
-  | oElem (iOpt "all")    opts = unlines [      s | (p,s) <- prTermTabular t]
-  | oElem (iOpt "unqual") opts = prt_ t
-  | otherwise = prt t
+showTerm :: TermPrintStyle -> Term -> String
+showTerm style t = 
+    case style of
+      TermPrintTable   -> unlines [p +++ s | (p,s) <- prTermTabular t]
+      TermPrintAll     -> unlines [      s | (p,s) <- prTermTabular t]
+      TermPrintUnqual  -> prt_ t
+      TermPrintDefault -> prt t
+
+
+data TermPrintStyle = TermPrintTable | TermPrintAll | TermPrintUnqual | TermPrintDefault
+  deriving (Show,Eq)
+