mirror of
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378 lines
13 KiB
Haskell
378 lines
13 KiB
Haskell
----------------------------------------------------------------------
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-- |
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-- Module : Shell
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-- Maintainer : AR
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/02/25 15:35:48 $
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-- > CVS $Author: aarne $
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-- > CVS $Revision: 1.34 $
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--
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-- GF shell command interpreter.
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-----------------------------------------------------------------------------
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module Shell where
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--- abstract away from these?
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import Str
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import qualified Grammar as G
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import qualified Ident as I
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import qualified Compute as Co
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import qualified CheckGrammar as Ch
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import qualified Lookup as L
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import qualified GFC
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import qualified Look
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import qualified CMacros
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import qualified GrammarToCanon
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import Values
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import GetTree
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import ShellCommands
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import VisualizeGrammar (visualizeCanonGrammar, visualizeSourceGrammar)
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import API
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import IOGrammar
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import Compile
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---- import GFTex
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import TeachYourself -- also a subshell
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import Randomized ---
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import Editing (goFirstMeta) ---
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import ShellState
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import Option
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import Information
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import HelpFile
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import PrOld
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import PrGrammar
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import Monad (foldM,liftM)
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import System (system)
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import Random (newStdGen) ----
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import Zipper ----
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import Operations
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import UseIO
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import UTF8 (encodeUTF8)
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import VisualizeGrammar (visualizeSourceGrammar)
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---- import qualified GrammarToGramlet as Gr
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---- import qualified GrammarToCanonXML2 as Canon
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-- AR 18/4/2000 - 7/11/2001
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-- data Command moved to ShellCommands. AR 27/5/2004
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type CommandLine = (CommandOpt, CommandArg, [CommandOpt])
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-- | term as returned by the command parser
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type SrcTerm = G.Term
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-- | history & CPU
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type HState = (ShellState,([String],Integer))
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type ShellIO = (HState, CommandArg) -> IO (HState, CommandArg)
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initHState :: ShellState -> HState
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initHState st = (st,([],0))
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cpuHState :: HState -> Integer
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cpuHState (_,(_,i)) = i
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optsHState :: HState -> Options
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optsHState (st,_) = globalOptions st
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putHStateCPU :: Integer -> HState -> HState
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putHStateCPU cpu (st,(h,_)) = (st,(h,cpu))
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updateHistory :: String -> HState -> HState
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updateHistory s (st,(h,cpu)) = (st,(s:h,cpu))
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-- | empty command if index over
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earlierCommandH :: HState -> Int -> String
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earlierCommandH (_,(h,_)) = ((h ++ repeat "") !!)
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execLinesH :: String -> [CommandLine] -> HState -> IO HState
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execLinesH s cs hst@(st, (h, _)) = do
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(_,st') <- execLines True cs hst
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cpu <- prOptCPU (optsHState st') (cpuHState hst)
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return $ putHStateCPU cpu $ updateHistory s st'
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ifImpure :: [CommandLine] -> Maybe (ImpureCommand,Options)
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ifImpure cls = foldr (const . Just) Nothing [(c,os) | ((CImpure c,os),_,_) <- cls]
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-- | the main function: execution of commands. 'put :: Bool' forces immediate output
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--
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-- command line with consecutive (;) commands: no value transmitted
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execLines :: Bool -> [CommandLine] -> HState -> IO ([String],HState)
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execLines put cs st = foldM (flip (execLine put)) ([],st) cs
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-- | command line with piped (|) commands: no value returned
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execLine :: Bool -> CommandLine -> ([String],HState) -> IO ([String],HState)
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execLine put (c@(co, os), arg, cs) (outps,st) = do
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(st',val) <- execC c (st, arg)
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let tr = oElem doTrace os || null cs -- option -tr leaves trace in pipe
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utf = if (oElem useUTF8 os) then encodeUTF8 else id
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outp = if tr then [utf (prCommandArg val)] else []
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if put then mapM_ putStrLnFlush outp else return ()
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execs cs val (if put then [] else outps ++ outp, st')
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where
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execs [] arg st = return st
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execs (c:cs) arg st = execLine put (c, arg, cs) st
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-- | individual commands possibly piped: value returned; this is not a state monad
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execC :: CommandOpt -> ShellIO
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execC co@(comm, opts0) sa@((st,(h,_)),a) = checkOptions st co >> case comm of
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CImport file -> useIOE sa $ do
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st1 <- shellStateFromFiles opts st file
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ioeIO $ changeState (const st1) sa --- \ ((_,h),a) -> ((st,h), a))
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CEmptyState -> changeState reinitShellState sa
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CChangeMain ma -> changeStateErr (changeMain ma) sa
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CStripState -> changeState purgeShellState sa
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{-
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CRemoveLanguage lan -> changeState (removeLanguage lan) sa
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CTransformGrammar file -> do
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s <- transformGrammarFile opts file
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returnArg (AString s) sa
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CConvertLatex file -> do
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s <- readFileIf file
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returnArg (AString (convertGFTex s)) sa
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-}
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CPrintHistory -> (returnArg $ AString $ unlines $ reverse h) sa
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-- good to have here for piping; eh and ec must be done on outer level
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CLinearize []
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| oElem showMulti opts ->
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changeArg (opTS2CommandArg (unlines. linearizeToAll
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(allStateGrammars st)) . s2t) sa
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| otherwise -> changeArg (opTS2CommandArg (optLinearizeTreeVal opts gro) . s2t) sa
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---- CLinearize m -> changeArg (opTS2CommandArg (optLinearizeArgForm opts gro m)) sa
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CParse
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---- | oElem showMulti opts -> do
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| oElem byLines opts -> do
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let ss = (if oElem showAll opts then id else filter (not . null)) $ lines $ prCommandArg a
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mts <- mapM parse ss
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let a' = ATrms [t | (_,ATrms ts) <- mts, t <- ts]
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changeArg (const a') sa
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| otherwise -> parse $ prCommandArg a
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where
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parse x = do
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warnDiscont opts
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let p = optParseArgErrMsg opts gro x
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case p of
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Ok (ts,msg) -> putStrLnFlush msg >> changeArg (const $ ATrms ts) sa
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Bad msg -> changeArg (const $ AError (msg +++ "input" +++ x)) sa
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CTranslate il ol -> do
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let a' = opST2CommandArg (optParseArgErr opts (sgr il)) a
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returnArg (opTS2CommandArg (optLinearizeTreeVal opts (sgr ol)) a') sa
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CGenerateRandom -> do
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let
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a' = case a of
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ASTrm _ -> s2t a
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AString _ -> s2t a
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_ -> a
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case a' of
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ATrms (trm:_) -> case tree2exp trm of
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G.EInt _ -> do
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putStrLn "Warning: Number argument deprecated, use gr -number=n instead"
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ts <- randomTreesIO opts gro (optIntOrN opts flagNumber 1)
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returnArg (ATrms ts) sa
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_ -> do
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g <- newStdGen
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case (goFirstMeta (tree2loc trm) >>= refineRandom g 41 cgr) of
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Ok trm' -> returnArg (ATrms [loc2tree trm']) sa
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Bad s -> returnArg (AError s) sa
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_ -> do
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ts <- randomTreesIO opts gro (optIntOrN opts flagNumber 1)
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returnArg (ATrms ts) sa
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CGenerateTrees -> do
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let
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a' = case a of
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ASTrm _ -> s2t a
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AString _ -> s2t a
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_ -> a
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mt = case a' of
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ATrms (tr:_) -> Just tr
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_ -> Nothing
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returnArg (ATrms $ generateTrees opts gro mt) sa
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CPutTerm -> changeArg (opTT2CommandArg (optTermCommand opts gro) . s2t) sa
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---- CWrapTerm f -> changeArg (opTT2CommandArg (return . wrapByFun opts gro f)) sa
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CMorphoAnalyse -> changeArg (AString . morphoAnalyse opts gro . prCommandArg) sa
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CTestTokenizer -> changeArg (AString . optTokenizer opts gro . prCommandArg) sa
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CComputeConcrete t -> do
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m <- return $
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maybe (I.identC "?") id $ -- meaningful if no opers in t
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maybe (resourceOfShellState st) (return . I.identC) $ -- topmost res
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getOptVal opts useResource -- flag -res=m
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justOutput opts (putStrLn (err id (prt . stripTerm) (
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string2srcTerm src m t >>=
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Ch.justCheckLTerm src >>=
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Co.computeConcrete src))) sa
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CShowOpers t -> do
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m <- return $
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maybe (I.identC "?") id $ -- meaningful if no opers in t
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maybe (resourceOfShellState st) (return . I.identC) $ -- topmost res
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getOptVal opts useResource -- flag -res=m
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justOutput opts (putStrLn (err id (unlines . map prOperSignature) (
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string2srcTerm src m t >>=
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Co.computeConcrete src >>=
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return . L.opersForType src))) sa
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CTranslationQuiz il ol -> do
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warnDiscont opts
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justOutput opts (teachTranslation opts (sgr il) (sgr ol)) sa
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CTranslationList il ol n -> do
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warnDiscont opts
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qs <- transTrainList opts (sgr il) (sgr ol) (toInteger n)
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returnArg (AString $ foldr (+++++) [] [unlines (s:ss) | (s,ss) <- qs]) sa
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CMorphoQuiz -> do
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warnDiscont opts
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justOutput opts (teachMorpho opts gro) sa
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CMorphoList n -> do
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warnDiscont opts
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qs <- useIOE [] $ morphoTrainList opts gro (toInteger n)
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returnArg (AString $ foldr (+++++) [] [unlines (s:ss) | (s,ss) <- qs]) sa
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CReadFile file -> returnArgIO (readFileIf file >>= return . AString) sa
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CWriteFile file -> justOutputArg opts (writeFile file) sa
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CAppendFile file -> justOutputArg opts (appendFile file) sa
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CSpeakAloud -> justOutputArg opts (speechGenerate opts) sa
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CSystemCommand s -> justOutput opts (system s >> return ()) sa
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CPutString -> changeArg (opSS2CommandArg (optStringCommand opts gro)) sa
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----- CShowTerm -> changeArg (opTS2CommandArg (optPrintTerm opts gro) . s2t) sa
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CSetFlag -> changeState (addGlobalOptions opts0) sa
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---- deprec! CSetLocalFlag lang -> changeState (addLocalOptions lang opts0) sa
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CHelp (Just c) -> returnArg (AString (txtHelpCommand c)) sa
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CHelp _ -> case opts0 of
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Opts [o] | o == showAll -> returnArg (AString txtHelpFile) sa
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Opts [o] -> returnArg (AString (txtHelpCommand ('-':prOpt o))) sa
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_ -> returnArg (AString txtHelpFileSummary) sa
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CPrintGrammar -> returnArg (AString (optPrintGrammar opts gro)) sa
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CPrintGlobalOptions -> justOutput opts (putStrLn $ prShellStateInfo st) sa
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CPrintInformation c -> justOutput opts (useIOE () $ showInformation opts st c) sa
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CPrintLanguages -> justOutput opts
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(putStrLn $ unwords $ map prLanguage $ allLanguages st) sa
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CPrintMultiGrammar -> do
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sa' <- changeState purgeShellState sa
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returnArg (AString (optPrintMultiGrammar opts cgr)) sa'
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CShowGrammarGraph -> do
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---- sa' <- changeState purgeShellState sa
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let g0 = writeFile "grphtmp.dot" $ visualizeCanonGrammar cgr
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g1 = system "dot -Tps grphtmp.dot >grphtmp.ps"
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g2 = system "gv grphtmp.ps &"
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g3 = return () ---- system "rm -f grphtmp.*"
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justOutput opts (g0 >> g1 >> g2 >> g3 >> return ()) sa
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CPrintSourceGrammar ->
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returnArg (AString (visualizeSourceGrammar src)) sa
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---- CPrintGramlet -> returnArg (AString (Gr.prGramlet st)) sa
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---- CPrintCanonXML -> returnArg (AString (Canon.prCanonXML st False)) sa
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---- CPrintCanonXMLStruct -> returnArg (AString (Canon.prCanonXML st True)) sa
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_ -> justOutput opts (putStrLn "command not understood") sa
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where
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sgr = stateGrammarOfLang st
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gro = grammarOfOptState opts st
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opts = addOptions opts0 (globalOptions st)
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src = srcModules st
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cgr = canModules st
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s2t a = case a of
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ASTrm s -> err AError (ATrms . return) $ string2treeErr gro s
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AString s -> err AError (ATrms . return) $ string2treeErr gro s
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_ -> a
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warnDiscont os = err putStrLn id $ do
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let c0 = firstAbsCat os gro
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c <- GrammarToCanon.redQIdent c0
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lang <- maybeErr "no concrete" $ languageOfOptState os st
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t <- return $ errVal CMacros.defLinType $ Look.lookupLincat cgr $ CMacros.redirectIdent lang c
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return $ if CMacros.isDiscontinuousCType t
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then (putStrLn ("Warning: discontinuous category" +++ prt_ c))
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else (return ())
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-- commands either change the state or process the argument, but not both
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-- some commands just do output
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changeState :: ShellStateOper -> ShellIO
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changeState f ((st,h),a) = return ((f st,h), a)
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changeStateErr :: ShellStateOperErr -> ShellIO
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changeStateErr f ((st,h),a) = case f st of
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Ok st' -> return ((st',h), a)
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Bad s -> return ((st, h),AError s)
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changeArg :: (CommandArg -> CommandArg) -> ShellIO
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changeArg f (st,a) = return (st, f a)
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changeArgMsg :: (CommandArg -> (CommandArg,String)) -> ShellIO
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changeArgMsg f (st,a) = do
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let (b,msg) = f a
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putStrLnFlush msg
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return (st, b)
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returnArg :: CommandArg -> ShellIO
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returnArg = changeArg . const
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returnArgIO :: IO CommandArg -> ShellIO
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returnArgIO io (st,_) = io >>= (\a -> return (st,a))
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justOutputArg :: Options -> (String -> IO ()) -> ShellIO
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justOutputArg opts f sa@(st,a) = f (utf (prCommandArg a)) >> return (st, AUnit)
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where
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utf = if (oElem useUTF8 opts) then encodeUTF8 else id
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justOutput :: Options -> IO () -> ShellIO
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justOutput opts = justOutputArg opts . const
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-- | type system for command arguments; instead of plain strings...
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data CommandArg =
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AError String
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| ATrms [Tree]
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| ASTrm String -- ^ to receive from parser
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| AStrs [Str]
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| AString String
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| AUnit
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deriving (Eq, Show)
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prCommandArg :: CommandArg -> String
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prCommandArg arg = case arg of
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AError s -> s
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AStrs ss -> sstrV ss
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AString s -> s
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ATrms [] -> "no tree found"
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ATrms tt -> unlines $ map prt_Tree tt
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ASTrm s -> s
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AUnit -> ""
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opSS2CommandArg :: (String -> String) -> CommandArg -> CommandArg
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opSS2CommandArg f = AString . f . prCommandArg
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opST2CommandArg :: (String -> Err [Tree]) -> CommandArg -> CommandArg
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opST2CommandArg f = err AError ATrms . f . prCommandArg
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opTS2CommandArg :: (Tree -> String) -> CommandArg -> CommandArg
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opTS2CommandArg f (ATrms ts) = AString $ unlines $ map f ts
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opTS2CommandArg _ (AError s) = AError ("expected term, but got error:" ++++ s)
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opTS2CommandArg _ a = AError ("expected term, but got:" ++++ prCommandArg a)
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opTT2CommandArg :: (Tree -> [Tree]) -> CommandArg -> CommandArg
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opTT2CommandArg f (ATrms ts) = ATrms $ concat $ map f ts
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opTT2CommandArg _ (AError s) = AError ("expected term, but got error:" ++++ s)
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opTT2CommandArg _ a = AError ("expected term, but got:" ++++ prCommandArg a)
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