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|
-----------------------------------------------------------------------------
-- |
-- Module : XMonadContrib.ShellPrompt
-- Copyright : (C) 2007 Andrea Rossato
-- License : BSD3
--
-- Maintainer : andrea.rossato@unibz.it
-- Stability : unstable
-- Portability : unportable
--
-- A shell prompt for XMonad
--
-----------------------------------------------------------------------------
module XMonadContrib.ShellPrompt (
-- * Usage
-- $usage
shellPrompt
) where
{-
usage:
1. In xmonad.cabal change:
build-depends: base>=2.0, X11>=1.2.1, X11-extras>=0.2, mtl>=1.0, unix>=1.0
to
build-depends: base>=2.0, X11>=1.2.1, X11-extras>=0.2, mtl>=1.0, unix>=1.0, readline >= 1.0
2. In Config.hs add:
> import XMonadContrib.ShellPrompt
3. In your keybindings add something like:
> , ((modMask .|. controlMask, xK_x), shellPrompt defaultPromptConfig)
-}
import XMonad
import XMonadContrib.XPrompt
import Control.Monad
import Data.List
import System.Console.Readline
import System.Environment
data Shell = Shell
instance XPrompt Shell where
showXPrompt Shell = "Run: "
shellPrompt :: XPConfig -> X ()
shellPrompt c = mkXPrompt Shell c getShellCompl spawn
getShellCompl :: String -> IO [String]
getShellCompl s
| s /= "" && last s /= ' ' = do
fl <- filenameCompletionFunction (last . words $ s)
c <- commandCompletionFunction (last . words $ s)
return $ sort . nub $ fl ++ c
| otherwise = return []
commandCompletionFunction :: String -> IO [String]
commandCompletionFunction str
| '/' `elem` str = return []
| otherwise = do
p <- getEnv "PATH"
cl p
where
cl = liftM (nub . rmPath . concat) . mapM fCF . map addToPath . split ':'
addToPath = flip (++) ("/" ++ str)
fCF = filenameCompletionFunction
rmPath [] = []
rmPath s = map (last . split '/') s
split :: Eq a => a -> [a] -> [[a]]
split _ [] = []
split e l =
f : split e (rest ls)
where
(f,ls) = span (/=e) l
rest s | s == [] = []
| otherwise = tail s
|
