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37 lines
1.1 KiB
Haskell
37 lines
1.1 KiB
Haskell
----------------------------------------------------------------------
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-- |
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-- Module : GF.System.UseReadline
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-- Maintainer : BB
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-- Stability : (stable)
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-- Portability : (portable)
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--
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-- > CVS $Date: 2005/05/10 15:04:01 $
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-- > CVS $Author: bringert $
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-- > CVS $Revision: 1.1 $
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--
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-- Use GNU readline
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-----------------------------------------------------------------------------
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module GF.System.UseReadline (fetchCommand, setCompletionFunction, filenameCompletionFunction) where
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import System.Console.Readline
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fetchCommand :: String -> IO (String)
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fetchCommand s = do
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setCompletionAppendCharacter Nothing
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setBasicQuoteCharacters ""
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res <- readline s
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case res of
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Nothing -> return "q"
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Just s -> do addHistory s
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return s
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setCompletionFunction :: Maybe (String -> String -> Int -> IO [String]) -> IO ()
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setCompletionFunction Nothing = setCompletionEntryFunction Nothing
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setCompletionFunction (Just fn) = setCompletionEntryFunction (Just my_fn)
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where
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my_fn prefix = do
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s <- getLineBuffer
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p <- getPoint
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fn s prefix p
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