diff options
Diffstat (limited to 'src/app')
| -rw-r--r-- | src/app/Configuration.hs | 197 | ||||
| -rw-r--r-- | src/app/Main.hs | 170 |
2 files changed, 0 insertions, 367 deletions
diff --git a/src/app/Configuration.hs b/src/app/Configuration.hs deleted file mode 100644 index 1cf3ebf..0000000 --- a/src/app/Configuration.hs +++ /dev/null @@ -1,197 +0,0 @@ -{-# LANGUAGE FlexibleContexts, CPP #-} - ------------------------------------------------------------------------------- --- | --- Module: Configuration --- Copyright: (c) 2018 Jose Antonio Ortega Ruiz --- License: BSD3-style (see LICENSE) --- --- Maintainer: jao@gnu.org --- Stability: unstable --- Portability: portable --- Created: Wed Nov 21, 2018 23:13 --- --- --- Parsing configuration files --- ------------------------------------------------------------------------------- - - -module Configuration (readConfig, readDefaultConfig) where - -import Text.ParserCombinators.Parsec -import Text.ParserCombinators.Parsec.Number (int) -import Text.ParserCombinators.Parsec.Perm ((<|?>), (<$?>), permute) -import Control.Monad.IO.Class (liftIO) - -import System.Environment -import System.Posix.Files (fileExist) - -import qualified Xmobar.Config as C - -#if defined XFT || defined UTF8 -import qualified System.IO as S (readFile,hGetLine) -#endif - -readFileSafe :: FilePath -> IO String -#if defined XFT || defined UTF8 -readFileSafe = S.readFile -#else -readFileSafe = readFile -#endif - -stripComments :: String -> String -stripComments = - unlines . map (drop 5 . strip False . (replicate 5 ' '++)) . lines - where strip m ('-':'-':xs) = if m then "--" ++ strip m xs else "" - strip m ('"':xs) = '"': strip (not m) xs - strip m (x:xs) = x : strip m xs - strip _ [] = [] - --- | Parse the config, logging a list of fields that were missing and replaced --- by the default definition. -parseConfig :: String -> Either ParseError (C.Config,[String]) -parseConfig = runParser parseConf fields "Config" . stripComments - where - parseConf = do - many space - sepEndSpc ["Config","{"] - x <- perms - eof - s <- getState - return (x,s) - - perms = permute $ C.Config - <$?> pFont <|?> pFontList <|?> pWmClass <|?> pWmName - <|?> pBgColor <|?> pFgColor - <|?> pPosition <|?> pTextOffset <|?> pTextOffsets - <|?> pIconOffset <|?> pBorder - <|?> pBdColor <|?> pBdWidth <|?> pAlpha <|?> pHideOnStart - <|?> pAllDesktops <|?> pOverrideRedirect <|?> pPickBroadest - <|?> pLowerOnStart <|?> pPersistent <|?> pIconRoot - <|?> pCommands <|?> pSepChar <|?> pAlignSep <|?> pTemplate - - - fields = [ "font", "additionalFonts","bgColor", "fgColor" - , "wmClass", "wmName", "sepChar" - , "alignSep" , "border", "borderColor" ,"template" - , "position" , "textOffset", "textOffsets", "iconOffset" - , "allDesktops", "overrideRedirect", "pickBroadest" - , "hideOnStart", "lowerOnStart", "persistent", "iconRoot" - , "alpha", "commands" - ] - - pFont = strField C.font "font" - pFontList = strListField C.additionalFonts "additionalFonts" - pWmClass = strField C.wmClass "wmClass" - pWmName = strField C.wmName "wmName" - pBgColor = strField C.bgColor "bgColor" - pFgColor = strField C.fgColor "fgColor" - pBdColor = strField C.borderColor "borderColor" - pSepChar = strField C.sepChar "sepChar" - pAlignSep = strField C.alignSep "alignSep" - pTemplate = strField C.template "template" - - pTextOffset = readField C.textOffset "textOffset" - pTextOffsets = readIntList C.textOffsets "textOffsets" - pIconOffset = readField C.iconOffset "iconOffset" - pPosition = readField C.position "position" - pHideOnStart = readField C.hideOnStart "hideOnStart" - pLowerOnStart = readField C.lowerOnStart "lowerOnStart" - pPersistent = readField C.persistent "persistent" - pBorder = readField C.border "border" - pBdWidth = readField C.borderWidth "borderWidth" - pAllDesktops = readField C.allDesktops "allDesktops" - pOverrideRedirect = readField C.overrideRedirect "overrideRedirect" - pPickBroadest = readField C.pickBroadest "pickBroadest" - pIconRoot = readField C.iconRoot "iconRoot" - pAlpha = readField C.alpha "alpha" - - pCommands = field C.commands "commands" readCommands - - staticPos = do string "Static" - wrapSkip (string "{") - p <- many (noneOf "}") - wrapSkip (string "}") - string "," - return ("Static {" ++ p ++ "}") - tillFieldEnd = staticPos <|> many (noneOf ",}\n\r") - - commandsEnd = wrapSkip (string "]") >> (string "}" <|> notNextRun) - notNextRun = do {string "," - ; notFollowedBy $ wrapSkip $ string "Run" - ; return "," - } - readCommands = manyTill anyChar (try commandsEnd) >>= - read' commandsErr . flip (++) "]" - strField e n = field e n strMulti - - strMulti = scan '"' - where - scan lead = do - spaces - char lead - s <- manyTill anyChar (rowCont <|> unescQuote) - (char '"' >> return s) <|> fmap (s ++) (scan '\\') - rowCont = try $ char '\\' >> string "\n" - unescQuote = lookAhead (noneOf "\\") >> lookAhead (string "\"") - - strListField e n = field e n strList - strList = do - spaces - char '[' - list <- sepBy (strMulti >>= \x -> spaces >> return x) (char ',') - spaces - char ']' - return list - - wrapSkip x = many space >> x >>= \r -> many space >> return r - sepEndSpc = mapM_ (wrapSkip . try . string) - fieldEnd = many $ space <|> oneOf ",}" - field e n c = (,) (e C.defaultConfig) $ - updateState (filter (/= n)) >> sepEndSpc [n,"="] >> - wrapSkip c >>= \r -> fieldEnd >> return r - readField a n = field a n $ tillFieldEnd >>= read' n - - readIntList d n = field d n intList - intList = do - spaces - char '[' - list <- sepBy (spaces >> int >>= \x-> spaces >> return x) (char ',') - spaces - char ']' - return list - - read' d s = case reads s of - [(x, _)] -> return x - _ -> fail $ "error reading the " ++ d ++ " field: " ++ s - -commandsErr :: String -commandsErr = "commands: this usually means that a command could not" ++ - "\nbe parsed." ++ - "\nThe error could be located at the begining of the command" ++ - "\nwhich follows the offending one." - --- | Reads the configuration files or quits with an error -readConfig :: FilePath -> String -> IO (C.Config,[String]) -readConfig f usage = do - file <- liftIO $ fileExist f - s <- liftIO $ if file then readFileSafe f else error $ - f ++ ": file not found!\n" ++ usage - either (\err -> error $ f ++ - ": configuration file contains errors at:\n" ++ show err) - return $ parseConfig s - --- | Read default configuration file or load the default config -readDefaultConfig :: String -> IO (C.Config,[String]) -readDefaultConfig usage = do - xdgConfigFile <- C.getXdgConfigFile - xdgConfigFileExists <- liftIO $ fileExist xdgConfigFile - home <- liftIO $ getEnv "HOME" - let defaultConfigFile = home ++ "/.xmobarrc" - defaultConfigFileExists <- liftIO $ fileExist defaultConfigFile - if xdgConfigFileExists - then readConfig xdgConfigFile usage - else if defaultConfigFileExists - then readConfig defaultConfigFile usage - else return (C.defaultConfig,[]) diff --git a/src/app/Main.hs b/src/app/Main.hs deleted file mode 100644 index 0760d16..0000000 --- a/src/app/Main.hs +++ /dev/null @@ -1,170 +0,0 @@ -{-# LANGUAGE FlexibleContexts #-} ------------------------------------------------------------------------------ --- | --- Module : Xmobar.Main --- Copyright : (c) Andrea Rossato --- License : BSD-style (see LICENSE) --- --- Maintainer : Jose A. Ortega Ruiz <jao@gnu.org> --- Stability : unstable --- Portability : unportable --- --- The main module of Xmobar, a text based status bar --- ------------------------------------------------------------------------------ - -module Main (main) where - -import Data.List (intercalate) - -import Data.Version (showVersion) -import System.Console.GetOpt -import System.Exit -import System.Environment (getArgs) -import Control.Monad (unless) -import Text.Read (readMaybe) - -import Xmobar (xmobar) -import Xmobar.Config - -import Paths_xmobar (version) -import Configuration (readConfig, readDefaultConfig) - --- $main - --- | The main entry point -main :: IO () -main = do - (o,file) <- getArgs >>= getOpts - (c,defaultings) <- case file of - [cfgfile] -> readConfig cfgfile usage - _ -> readDefaultConfig usage - unless (null defaultings) $ putStrLn $ - "Fields missing from config defaulted: " ++ intercalate "," defaultings - doOpts c o >>= xmobar - -data Opts = Help - | Version - | Font String - | BgColor String - | FgColor String - | Alpha String - | T - | B - | D - | AlignSep String - | Commands String - | AddCommand String - | SepChar String - | Template String - | OnScr String - | IconRoot String - | Position String - | WmClass String - | WmName 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 "w" ["wmclass"] (ReqArg WmClass "class") "X11 WM_CLASS property" - , Option "n" ["wmname"] (ReqArg WmName "name") "X11 WM_NAME property" - , Option "B" ["bgcolor"] (ReqArg BgColor "bg color" ) - "The background color. Default black" - , Option "F" ["fgcolor"] (ReqArg FgColor "fg color") - "The foreground color. Default grey" - , Option "i" ["iconroot"] (ReqArg IconRoot "path") - "Root directory for icon pattern paths. Default '.'" - , Option "A" ["alpha"] (ReqArg Alpha "alpha") - "The transparency: 0 is transparent, 255 is opaque. Default: 255" - , Option "o" ["top"] (NoArg T) "Place xmobar at the top of the screen" - , Option "b" ["bottom"] (NoArg B) - "Place xmobar at the bottom of the screen" - , Option "d" ["dock"] (NoArg D) - "Don't override redirect from WM and function as a dock" - , Option "a" ["alignsep"] (ReqArg AlignSep "alignsep") - "Separators for left, center and right text\nalignment. Default: '}{'" - , Option "s" ["sepchar"] (ReqArg SepChar "char") - ("The character used to separate commands in" ++ - "\nthe output template. Default '%'") - , Option "t" ["template"] (ReqArg Template "template") - "The output template" - , Option "c" ["commands"] (ReqArg Commands "commands") - "The list of commands to be executed" - , Option "C" ["add-command"] (ReqArg AddCommand "command") - "Add to the list of commands to be executed" - , Option "x" ["screen"] (ReqArg OnScr "screen") - "On which X screen number to start" - , Option "p" ["position"] (ReqArg Position "position") - "Specify position of xmobar. Same syntax as in config file" - ] - -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 ++ footer - where header = "Usage: xmobar [OPTION...] [FILE]\nOptions:" - footer = "\nMail bug reports and suggestions to " ++ mail ++ "\n" - -info :: String -info = "xmobar " ++ showVersion version - ++ "\n (C) 2007 - 2010 Andrea Rossato " - ++ "\n (C) 2010 - 2018 Jose A Ortega Ruiz\n " - ++ mail ++ "\n" ++ license - -mail :: String -mail = "<mail@jao.io>" - -license :: String -license = "\nThis program is distributed in the hope that it will be useful," ++ - "\nbut WITHOUT ANY WARRANTY; without even the implied warranty of" ++ - "\nMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE." ++ - "\nSee the License for more details." - -doOpts :: Config -> [Opts] -> IO Config -doOpts conf [] = - return (conf {lowerOnStart = lowerOnStart conf && overrideRedirect conf}) -doOpts conf (o:oo) = - case o of - Help -> putStr usage >> exitSuccess - Version -> putStrLn info >> exitSuccess - Font s -> doOpts' (conf {font = s}) - WmClass s -> doOpts' (conf {wmClass = s}) - WmName s -> doOpts' (conf {wmName = s}) - BgColor s -> doOpts' (conf {bgColor = s}) - FgColor s -> doOpts' (conf {fgColor = s}) - Alpha n -> doOpts' (conf {alpha = read n}) - T -> doOpts' (conf {position = Top}) - B -> doOpts' (conf {position = Bottom}) - D -> doOpts' (conf {overrideRedirect = False}) - AlignSep s -> doOpts' (conf {alignSep = s}) - SepChar s -> doOpts' (conf {sepChar = s}) - Template s -> doOpts' (conf {template = s}) - IconRoot s -> doOpts' (conf {iconRoot = s}) - OnScr n -> doOpts' (conf {position = OnScreen (read n) $ position conf}) - Commands s -> case readCom 'c' s of - Right x -> doOpts' (conf {commands = x}) - Left e -> putStr (e ++ usage) >> exitWith (ExitFailure 1) - AddCommand s -> case readCom 'C' s of - Right x -> doOpts' (conf {commands = commands conf ++ x}) - Left e -> putStr (e ++ usage) >> exitWith (ExitFailure 1) - Position s -> readPosition s - where readCom c str = - case readStr str of - [x] -> Right x - _ -> Left ("xmobar: cannot read list of commands " ++ - "specified with the -" ++ c:" option\n") - readStr str = [x | (x,t) <- reads str, ("","") <- lex t] - doOpts' opts = doOpts opts oo - readPosition string = - case readMaybe string of - Just x -> doOpts' (conf { position = x }) - Nothing -> do - putStrLn "Can't parse position option, ignoring" - doOpts' conf |