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|
----------------------------------------------------------------------
-- |
-- Module : PShell
-- Maintainer : AR
-- Stability : (stable)
-- Portability : (portable)
--
-- > CVS $Date: 2005/05/20 14:34:11 $
-- > CVS $Author: bringert $
-- > CVS $Revision: 1.24 $
--
-- parsing GF shell commands. AR 11\/11\/2001
-----------------------------------------------------------------------------
module GF.Shell.PShell where
import GF.Data.Operations
import GF.Infra.UseIO
import GF.Compile.ShellState
import GF.Shell.ShellCommands
import GF.Shell
import GF.Infra.Option
import GF.Compile.PGrammar (pzIdent, pTrm) --- (string2formsAndTerm)
import GF.API
import GF.System.Arch (fetchCommand)
import Data.Char (isDigit, isSpace)
import System.IO.Error
-- parsing GF shell commands. AR 11/11/2001
-- | getting a sequence of command lines as input
getCommandLines :: IO (String,[CommandLine])
getCommandLines = do
s <- fetchCommand "> "
return (s,pCommandLines s)
getCommandLinesBatch :: IO (String,[CommandLine])
getCommandLinesBatch = do
s <- catch getLine (\e -> if isEOFError e then return "q" else ioError e)
return $ (s,pCommandLines s)
pCommandLines :: String -> [CommandLine]
pCommandLines = map pCommandLine . concatMap (chunks ";;" . wordsLits) . lines
-- | Like 'words', but does not split on whitespace inside
-- double quotes.
wordsLits :: String -> [String]
wordsLits [] = []
wordsLits (c:cs) | isSpace c = wordsLits (dropWhile isSpace cs)
| c == '\'' || c == '"'
= let (l,rs) = break (==c) cs
rs' = drop 1 rs
in ([c]++l++[c]):wordsLits rs'
| otherwise = let (w,rs) = break isSpace cs
in (c:w):wordsLits rs
-- | Remove single or double quotes around a string
unquote :: String -> String
unquote (x:xs@(_:_)) | x `elem` "\"'" && x == last xs = init xs
unquote s = s
pCommandLine :: [String] -> CommandLine
pCommandLine s = pFirst (chks s) where
pFirst cos = case cos of
(c,os,[a]) : cs -> ((c,os), a, pCont cs)
_ -> ((CVoid,noOptions), AError "no parse", [])
pCont cos = case cos of
(c,os,_) : cs -> (c,os) : pCont cs
_ -> []
chks = map pCommandOpt . chunks "|"
pCommandOpt :: [String] -> (Command, Options, [CommandArg])
pCommandOpt (w:ws) = let
(os, co) = getOptions "-" ws
(comm, args) = pCommand (abbrevCommand w:co)
in
(comm, os, args)
pCommandOpt s = (CVoid, noOptions, [AError "no parse"])
pInputString :: String -> [CommandArg]
pInputString s = case s of
('"':_:_) -> [AString (init (tail s))]
_ -> [AError "illegal string"]
-- | command @rl@ can be written @remove_language@ etc.
abbrevCommand :: String -> String
abbrevCommand = hds . words . map u2sp where
u2sp c = if c=='_' then ' ' else c
hds s = case s of
[w@[_,_]] -> w
_ -> map head s
pCommand :: [String] -> (Command, [CommandArg])
pCommand ws = case ws of
"i" : f : [] -> aUnit (CImport (unquote f))
"rl" : l : [] -> aUnit (CRemoveLanguage (language l))
"e" : [] -> aUnit CEmptyState
"cm" : a : [] -> aUnit (CChangeMain (Just (pzIdent a)))
"cm" : [] -> aUnit (CChangeMain Nothing)
"s" : [] -> aUnit CStripState
"tg" : f : [] -> aUnit (CTransformGrammar f)
"cl" : f : [] -> aUnit (CConvertLatex f)
"ph" : [] -> aUnit CPrintHistory
"l" : s -> aTermLi CLinearize s
"p" : s -> aString CParse s
"t" : i:o: s -> aString (CTranslate (language i) (language o)) s
"gr" : [] -> aUnit CGenerateRandom
"gr" : t -> aTerm CGenerateRandom t
"gt" : [] -> aUnit CGenerateTrees
"gt" : t -> aTerm CGenerateTrees t
"pt" : s -> aTerm CPutTerm s
"wt" : f : s -> aTerm (CWrapTerm (pzIdent f)) s
"ma" : s -> aString CMorphoAnalyse s
"tt" : s -> aString CTestTokenizer s
"cc" : s -> aUnit $ CComputeConcrete $ unwords s
"so" : s -> aUnit $ CShowOpers $ unwords s
"tq" : i:o:[] -> aUnit (CTranslationQuiz (language i) (language o))
"tl":i:o:[] -> aUnit (CTranslationList (language i) (language o))
"mq" : [] -> aUnit CMorphoQuiz
"ml" : [] -> aUnit CMorphoList
"wf" : f : s -> aString (CWriteFile (unquote f)) s
"af" : f : s -> aString (CAppendFile (unquote f)) s
"rf" : f : [] -> aUnit (CReadFile (unquote f))
"sa" : s -> aString CSpeakAloud s
"ps" : s -> aString CPutString s
"st" : s -> aTerm CShowTerm s
"!" : s -> aUnit (CSystemCommand (unwords s))
"sc" : s -> aUnit (CSystemCommand (unwords s))
"sf" : l : [] -> aUnit (CSetLocalFlag (language l))
"sf" : [] -> aUnit CSetFlag
"pg" : [] -> aUnit CPrintGrammar
"pi" : c : [] -> aUnit $ CPrintInformation (pzIdent c)
"pj" : [] -> aUnit CPrintGramlet
"pxs" : [] -> aUnit CPrintCanonXMLStruct
"px" : [] -> aUnit CPrintCanonXML
"pm" : [] -> aUnit CPrintMultiGrammar
"vg" : [] -> aUnit CShowGrammarGraph
"sg" : [] -> aUnit CPrintSourceGrammar
"po" : [] -> aUnit CPrintGlobalOptions
"pl" : [] -> aUnit CPrintLanguages
"h" : c : [] -> aUnit $ CHelp (Just (abbrevCommand c))
"h" : [] -> aUnit $ CHelp Nothing
"q" : [] -> aImpure ICQuit
"eh" : f : [] -> aImpure (ICExecuteHistory f)
n : [] | all isDigit n -> aImpure (ICEarlierCommand (readIntArg n))
"es" : [] -> aImpure ICEditSession
"ts" : [] -> aImpure ICTranslateSession
_ -> (CVoid, [])
where
aString c ss = (c, pInputString (unwords ss))
aTerm c ss = (c, [ASTrm $ unwords ss]) ---- [ASTrms [s2t (unwords ss)]])
aUnit c = (c, [AUnit])
aImpure = aUnit . CImpure
aTermLi c ss = (c [], [ASTrm $ unwords ss])
---- (c forms, [ASTrms [term]]) where
---- (forms,term) = ([], s2t (unwords ss)) ---- string2formsAndTerm (unwords ss)
|
