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-rw-r--r--Main.hs91
1 files changed, 87 insertions, 4 deletions
diff --git a/Main.hs b/Main.hs
index 55e5487..9715939 100644
--- a/Main.hs
+++ b/Main.hs
@@ -22,6 +22,10 @@ module Main ( -- * Main Stuff
import Xmobar
import Parsers
import Config
+
+import Data.IORef
+import System.Console.GetOpt
+import System.Exit
import System.Environment
import System.IO.Error
@@ -31,9 +35,13 @@ import System.IO.Error
main :: IO ()
main =
do args <- getArgs
- config <- case args of
- [cfgfile] -> readConfig cfgfile
- _ -> readDefaultConfig
+ (o,file) <- getOpts args
+ conf <- case file of
+ [cfgfile] -> readConfig cfgfile
+ _ -> readDefaultConfig
+ c <- newIORef conf
+ doOpts c o
+ config <- readIORef c
cl <- parseTemplate config (template config)
var <- execCommands config cl
(d,w) <- createWin config
@@ -55,5 +63,80 @@ readDefaultConfig =
do home <- getEnv "HOME"
let path = home ++ "/.xmobarrc"
catch (readConfig path)
- (\e -> if isUserError e then ioError e else return defaultConfig)
+ (\e -> if isUserError e then ioError e else return defaultConfig)
+
+data Opts = Help
+ | Version
+ | Font String
+ | BgColor String
+ | FgColor String
+ | XPos String
+ | YPos String
+ | Width String
+ | Height String
+ | Align String
+ | Refresh String
+ | Commands String
+ | SepChar String
+ | Template String
+ deriving Show
+
+options :: [OptDescr Opts]
+options =
+ [ Option ['h','?'] ["help"] (NoArg Help) "This help"
+ , Option ['V'] ["version"] (NoArg Version) "Show version information"
+ , Option ['f'] ["font"] (ReqArg Font "font name") "The font name"
+ , Option ['B'] ["bgcolor"] (ReqArg BgColor "backgorund color") "The background color. Default balck"
+ , Option ['F'] ["fgcolor"] (ReqArg FgColor "foregorund color") "The foreground color. Default grey"
+ , Option ['x'] ["xpos"] (ReqArg XPos "x position") "The x position. Default 0"
+ , Option ['y'] ["ypos"] (ReqArg YPos "y position") "The y position. Default 0"
+ , Option ['W'] ["width"] (ReqArg Width "width") "The status bar width. Default 1024"
+ , Option ['H'] ["height"] (ReqArg Height "height") "The status bar heigth. Default 15"
+ , Option ['a'] ["align"] (ReqArg Align "text alignement") "The text alignment: center, left or right. Default: left"
+ , Option ['r'] ["refresh"] (ReqArg Refresh "default rate") "The refresh rate in tenth of seconds: dafault 1 sec."
+ , Option ['s'] ["sepchar"] (ReqArg SepChar "separation character") "The charater used to separate commands in the output templae. Default '%'"
+ , Option ['t'] ["template"] (ReqArg Template "tempate") "The output template"
+ , Option ['c'] ["commands"] (ReqArg Commands "commands") "The list of commands to be executed"
+ ]
+
+getOpts :: [String] -> IO ([Opts], [String])
+getOpts argv =
+ case getOpt Permute options argv of
+ (o,n,[]) -> return (o,n)
+ (_,_,errs) -> error (concat errs ++ usage)
+
+usage :: String
+usage = usageInfo header options
+ where header = "Usage: xmobar [OPTION...] [FILE]"
+
+version :: String
+version = "Xmobar 0.7 (c) 2007 Andrea Rossato <andrea.rossato@unibz.it>"
+doOpts :: IORef Config -> [Opts] -> IO ()
+doOpts _ [] = return ()
+doOpts conf (o:oo) =
+ case o of
+ Help -> putStr usage >> exitWith ExitSuccess
+ Version -> putStrLn version >> exitWith ExitSuccess
+ Font s -> modifyIORef conf (\c -> c { font = s }) >> doOpts conf oo
+ BgColor s -> modifyIORef conf (\c -> c { bgColor = s }) >> doOpts conf oo
+ FgColor s -> modifyIORef conf (\c -> c { fgColor = s }) >> doOpts conf oo
+ XPos s -> modifyIORef conf (\c -> c { xPos = readInt s c xPos}) >> doOpts conf oo
+ YPos s -> modifyIORef conf (\c -> c { yPos = readInt s c yPos }) >> doOpts conf oo
+ Width s -> modifyIORef conf (\c -> c { width = readInt s c width }) >> doOpts conf oo
+ Height s -> modifyIORef conf (\c -> c { height = readInt s c height }) >> doOpts conf oo
+ Align s -> modifyIORef conf (\c -> c { align = s }) >> doOpts conf oo
+ Refresh s -> modifyIORef conf (\c -> c { refresh = readInt s c refresh }) >> doOpts conf oo
+ SepChar s -> modifyIORef conf (\c -> c { sepChar = s }) >> doOpts conf oo
+ Template s -> modifyIORef conf (\c -> c { template = s }) >> doOpts conf oo
+ Commands s -> do case readCom s of
+ Right x -> modifyIORef conf ((\v c -> c { commands = v }) x) >> doOpts conf oo
+ Left e -> putStr (e ++ usage) >> exitWith (ExitFailure 1)
+ where readCom :: Read a => String -> Either String a
+ readCom str = case readStr str of
+ [x] -> Right x
+ _ -> Left "xmobar: cannot read list of commands specified with the -c option\n"
+ readInt str c f = case readStr str of
+ [x] -> x
+ _ -> f c
+ readStr str = [x | (x,t) <- reads str, ("","") <- lex t]