GF/src is now for 2.9, and the new sources are in src-3.0 - keep it this way until the release of GF 3

1 files changed, 159 insertions, 0 deletions

diff --git a/src-3.0/GF/Command/Commands.hs b/src-3.0/GF/Command/Commands.hs
new file mode 100644
index 000000000..d5b5a8768
--- /dev/null
+++ b/src-3.0/GF/Command/Commands.hs
@@ -0,0 +1,159 @@
+module GF.Command.Commands (
+  allCommands,
+  lookCommand,
+  exec,
+  isOpt,
+  options,
+  flags,
+  CommandInfo,
+  CommandOutput
+  ) where
+
+import GF.Command.AbsGFShell hiding (Tree)
+import GF.Command.PPrTree
+import GF.Command.ParGFShell
+import GF.GFCC.ShowLinearize
+import GF.GFCC.API
+import GF.GFCC.Macros
+import GF.Devel.PrintGFCC
+import GF.GFCC.DataGFCC ----
+
+import GF.Data.ErrM ----
+
+import qualified Data.Map as Map
+
+type CommandOutput = ([Tree],String) ---- errors, etc
+
+data CommandInfo = CommandInfo {
+  exec     :: [Option] -> [Tree] -> IO CommandOutput,
+  synopsis :: String,
+  explanation :: String,
+  longname :: String,
+  options  :: [String],
+  flags    :: [String]
+  }
+
+emptyCommandInfo :: CommandInfo
+emptyCommandInfo = CommandInfo {
+  exec = \_ ts -> return (ts,[]), ----
+  synopsis = "synopsis",
+  explanation = "explanation",
+  longname = "longname",
+  options = [],
+  flags = []
+  }
+
+lookCommand :: String -> Map.Map String CommandInfo -> Maybe CommandInfo
+lookCommand = Map.lookup
+
+commandHelpAll :: MultiGrammar -> [Option] -> String
+commandHelpAll mgr opts = unlines
+  [commandHelp (isOpt "full" opts) (co,info)
+    | (co,info) <- Map.assocs (allCommands mgr)]
+
+commandHelp :: Bool -> (String,CommandInfo) -> String
+commandHelp full (co,info) = unlines $ [
+  co ++ ", " ++ longname info,
+  synopsis info] ++ if full then [
+  explanation info,
+  "options: " ++ unwords (options info),
+  "flags: " ++ unwords (flags info)
+  ] else []
+
+valIdOpts :: String -> String -> [Option] -> String
+valIdOpts flag def opts = case valOpts flag (VId (Ident def)) opts of
+  VId (Ident v) -> v
+  _ -> def
+
+valIntOpts :: String -> Integer -> [Option] -> Int
+valIntOpts flag def opts = fromInteger $ case valOpts flag (VInt def) opts of
+  VInt v -> v
+  _ -> def
+
+valOpts :: String -> Value -> [Option] -> Value
+valOpts flag def opts = case lookup flag flags of
+  Just v -> v
+  _ -> def
+ where
+   flags = [(f,v) | OFlag (Ident f) v <- opts]
+
+isOpt :: String -> [Option] -> Bool
+isOpt o opts = elem o [x | OOpt (Ident x) <- opts]
+
+-- this list must be kept sorted by the command name!
+allCommands :: MultiGrammar -> Map.Map String CommandInfo
+allCommands mgr = Map.fromAscList [
+  ("gr", emptyCommandInfo {
+     longname = "generate_random",
+     synopsis = "generates a list of random trees, by default one tree",
+     flags = ["cat","number"],
+     exec = \opts _ -> do
+       ts <- generateRandom mgr (optCat opts)
+       return $ fromTrees $ take (optNum opts) ts
+     }),
+  ("gt", emptyCommandInfo {
+     longname = "generate_trees",
+     synopsis = "generates a list of trees, by default exhaustive",
+     flags = ["cat","depth","number"],
+     exec = \opts _ -> do
+       let dp = return $ valIntOpts "depth" 4 opts
+       let ts = generateAllDepth mgr (optCat opts) dp
+       return $ fromTrees $ take (optNumInf opts) ts
+     }),
+  ("h", emptyCommandInfo {
+     longname = "help",
+     synopsis = "get description of a command, or a the full list of commands",
+     options = ["full"],
+     exec = \opts ts -> return ([], case ts of
+       [t] -> let co = (showTree t) in 
+              case lookCommand co (allCommands mgr) of   ---- new map ??!!
+                Just info -> commandHelp True (co,info)
+                _ -> "command not found"
+       _ -> commandHelpAll mgr opts)
+     }),
+  ("l", emptyCommandInfo {
+     exec = \opts -> return . fromStrings . map (optLin opts),
+     options = ["all","record","table","term"],
+     flags = ["lang"]
+     }),
+  ("p", emptyCommandInfo {
+     exec = \opts -> return . fromTrees . concatMap (par opts). toStrings,
+     flags = ["cat","lang"]
+     }),
+  ("pg", emptyCommandInfo {
+     exec  = \opts _ -> return $ fromString $ prGrammar opts,
+     flags = ["cat","lang","printer"]
+     })
+  ]
+ where
+   lin opts t = unlines [linearize mgr lang t    | lang <- optLangs opts]
+   par opts s = concat  [parse mgr lang (optCat opts) s | lang <- optLangs opts]
+ 
+   optLin opts t = unlines [linea lang t | lang <- optLangs opts] where
+     linea lang = case opts of
+       _ | isOpt "all"    opts -> allLinearize gr (cid lang)
+       _ | isOpt "table"  opts -> tableLinearize gr (cid lang)
+       _ | isOpt "term"   opts -> termLinearize gr (cid lang)
+       _ | isOpt "record" opts -> recordLinearize gr (cid lang)
+       _  -> linearize mgr lang
+
+
+   optLangs opts = case valIdOpts "lang" "" opts of
+     "" -> languages mgr
+     lang -> [lang] 
+   optCat opts = valIdOpts "cat" (lookStartCat gr) opts
+   optNum opts = valIntOpts "number" 1 opts
+   optNumInf opts = valIntOpts "number" 1000000000 opts ---- 10^9
+
+   gr       = gfcc mgr
+
+   fromTrees ts = (ts,unlines (map showTree ts))
+   fromStrings ss = (map tStr ss, unlines ss)
+   fromString  s  = ([tStr s], s)
+   toStrings ts = [s | DTr [] (AS s) [] <- ts] 
+   tStr s = DTr [] (AS s) []
+
+   prGrammar opts = case valIdOpts "printer" "" opts of
+     "cats" -> unwords $ categories mgr
+     v -> prGFCC v gr 
+