version-related changes in Makefile and help

src/GF/Command/Abstract.hs

@@ -65,3 +65,10 @@ prOpt o = case o of
 mkOpt :: String -> Option
 mkOpt = OOpt
 
+-- abbreviation convention from gf commands
+getCommandOp s = case break (=='_') s of
+     (a:_,_:b:_) -> [a,b]  -- axx_byy --> ab
+     _ -> case s of
+       [a,b] -> s          -- ab  --> ab
+       a:_ -> [a]          -- axx --> a
+

src/GF/Command/Commands.hs

@@ -23,6 +23,7 @@ import GF.Infra.UseIO
 import GF.Data.ErrM ----
 import PGF.Expr (readTree)
 import GF.Command.Abstract
+import GF.Command.Messages
 import GF.Text.Lexing
 import GF.Text.Transliterations
 
@@ -193,10 +194,16 @@ allCommands enc pgf = Map.fromList [
        "Without argument, shows the synopsis of all commands."
        ],
      options = [
-       ("full","give full information of the commands")
+       ("changes","give a summary of changes from GF 2.9"),
+       ("coding","give advice on character encoding"),
+       ("full","give full information of the commands"),
+       ("license","show copyright and license information")
        ],
      exec = \opts ts -> return ([], case ts of
-       [t] -> let co = showTree t in 
+       _ | isOpt "changes" opts -> changesMsg
+       _ | isOpt "coding" opts -> codingMsg
+       _ | isOpt "license" opts -> licenseMsg
+       [t] -> let co = getCommandOp (showTree t) in 
               case lookCommand co (allCommands enc pgf) of   ---- new map ??!!
                 Just info -> commandHelp True (co,info)
                 _ -> "command not found"
@@ -612,3 +619,5 @@ infinity = 256
 
 lookFlag :: PGF -> String -> String -> Maybe String
 lookFlag pgf lang flag = lookConcrFlag pgf (mkCId lang) (mkCId flag)
+
+

src/GF/Command/Interpreter.hs

@@ -116,10 +116,3 @@ getCommandArg env a ts = case a of
   ATree t -> [t] -- ignore piped
   ANoArg  -> ts  -- use piped
 
--- abbreviation convention from gf commands
-getCommandOp s = case break (=='_') s of
-     (a:_,_:b:_) -> [a,b]  -- axx_byy --> ab
-     _ -> case s of
-       [a,b] -> s          -- ab  --> ab
-       a:_ -> [a]          -- axx --> a
-

src/GF/Command/Messages.hs

@@ -0,0 +1,54 @@
+module GF.Command.Messages where
+
+licenseMsg = unlines [
+ "Copyright (c)", 
+ "Krasimir Angelov, Bj\246rn Bringert, H\229kan Burden, Hans-Joachim Daniels,",
+ "Markus Forsberg, Thomas Hallgren, Harald Hammarstr\246m, Kristofer Johannisson,",
+ "Janna Khegai, Peter Ljungl\246f, Petri M\228enp\228\228, and", 
+ "Aarne Ranta, 1998-2008, under GNU General Public License (GPL)",
+ "see LICENSE in GF distribution, or http://www.gnu.org/licenses/gpl.html."
+ ]
+
+codingMsg = unlines [
+  "The GF shell uses Unicode internally, but assumes user input to be UTF8",
+  "and converts terminal and file output to UTF8. If your terminal is not UTF8", 
+  "see 'help set_encoding."
+ ]
+
+changesMsg = unlines [
+  "While GF 3.0 is backward compatible with source grammars, the shell commands", 
+  "have changed from version 2.9. Below the most importand changes. Bug reports",
+  "and feature requests should be sent to http://trac.haskell.org/gf/.",
+  "",
+  "af     use wf -append",
+  "at     not supported",
+  "eh     not yet supported", 
+  "es     no longer supported; use javascript generation",
+  "g      not yet supported", 
+  "l      now by default multilingual",
+  "ml     not yet supported", 
+  "p      now by default multilingual",
+  "pi     not yet supported", 
+  "pl     not yet supported", 
+  "pm     subsumed to pg",
+  "po     not yet supported",
+  "pt     not yet supported", 
+  "r      not yet supported",
+  "rf     changed syntax",
+  "rl     not supported",
+  "s      no longer needed",
+  "sa     not supported",
+  "sf     not supported",
+  "si     not supported",
+  "so     not yet supported", 
+  "t      use pipe with l and p",
+  "tb     use l -treebank",
+  "tl     not yet supported", 
+  "tq     changed syntax",
+  "ts     not supported",
+  "tt     use ps",
+  "ut     not supported",
+  "vg     not yet supported",
+  "wf     changed syntax",
+  "wt     not supported"
+  ]