Back to app/src, since it seems they're the default convention for stack

24 files changed, 3414 insertions, 0 deletions

diff --git a/src/Xmobar/Plugins/Monitors/Alsa.hs b/src/Xmobar/Plugins/Monitors/Alsa.hs
new file mode 100644
index 0000000..21a2786
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Alsa.hs
@@ -0,0 +1,146 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Alsa
+-- Copyright   :  (c) 2018 Daniel Schüssler
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- Event-based variant of the Volume plugin.
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Alsa
+  ( startAlsaPlugin
+  , withMonitorWaiter
+  , parseOptsIncludingMonitorArgs
+  , AlsaOpts(aoAlsaCtlPath)
+  ) where
+
+import Control.Concurrent
+import Control.Concurrent.Async
+import Control.Exception
+import Control.Monad
+import Xmobar.Plugins.Monitors.Common
+import qualified Xmobar.Plugins.Monitors.Volume as Volume;
+import System.Console.GetOpt
+import System.Directory
+import System.Exit
+import System.IO
+import System.Process
+
+data AlsaOpts = AlsaOpts
+    { aoVolumeOpts :: Volume.VolumeOpts
+    , aoAlsaCtlPath :: Maybe FilePath
+    }
+
+defaultOpts :: AlsaOpts
+defaultOpts = AlsaOpts Volume.defaultOpts Nothing
+
+alsaCtlOptionName :: String
+alsaCtlOptionName = "alsactl"
+
+options :: [OptDescr (AlsaOpts -> AlsaOpts)]
+options =
+    Option "" [alsaCtlOptionName] (ReqArg (\x o ->
+       o { aoAlsaCtlPath = Just x }) "") ""
+    : fmap (fmap modifyVolumeOpts) Volume.options
+  where
+    modifyVolumeOpts f o = o { aoVolumeOpts = f (aoVolumeOpts o) }
+
+parseOpts :: [String] -> IO AlsaOpts
+parseOpts argv =
+    case getOpt Permute options argv of
+        (o, _, []) -> return $ foldr id defaultOpts o
+        (_, _, errs) -> ioError . userError $ concat errs
+
+parseOptsIncludingMonitorArgs :: [String] -> IO AlsaOpts
+parseOptsIncludingMonitorArgs args =
+    -- Drop generic Monitor args first
+    case getOpt Permute [] args of
+      (_, args', _) -> parseOpts args'
+
+startAlsaPlugin :: String -> String -> [String] -> (String -> IO ()) -> IO ()
+startAlsaPlugin mixerName controlName args cb = do
+  opts <- parseOptsIncludingMonitorArgs args
+
+  let run args2 = do
+        -- Replicating the reparsing logic used by other plugins for now,
+        -- but it seems the option parsing could be floated out (actually,
+        -- GHC could in principle do it already since getOpt is pure, but
+        -- it would have to inline 'runMBD', 'doArgs' and 'parseOpts' to see
+        -- it, which probably isn't going to happen with the default
+        -- optimization settings).
+        opts2 <- io $ parseOpts args2
+        Volume.runVolumeWith (aoVolumeOpts opts2) mixerName controlName
+
+  withMonitorWaiter mixerName (aoAlsaCtlPath opts) $ \wait_ ->
+    runMB args Volume.volumeConfig run wait_ cb
+
+withMonitorWaiter :: String -> Maybe FilePath -> (IO () -> IO a) -> IO a
+withMonitorWaiter mixerName alsaCtlPath cont = do
+  mvar <- newMVar ()
+
+  path <- determineAlsaCtlPath
+
+  bracket (async $ readerThread mvar path) cancel $ \a -> do
+
+    -- Throw on this thread if there's an exception
+    -- on the reader thread.
+    link a
+
+    cont $ takeMVar mvar
+
+  where
+
+    readerThread mvar path =
+      let createProc = (proc "stdbuf" ["-oL", path, "monitor", mixerName])
+                          {std_out = CreatePipe}
+      in
+        withCreateProcess createProc $ \_ (Just alsaOut) _ _ -> do
+          hSetBuffering alsaOut LineBuffering
+
+          forever $ do
+            c <- hGetChar alsaOut
+            when (c == '\n') $
+              -- This uses 'tryPutMVar' because 'putMVar' would make 'runVolume' run
+              -- once for each event. But we want it to run only once after a burst
+              -- of events.
+              void $ tryPutMVar mvar ()
+
+    defaultPath = "/usr/sbin/alsactl"
+
+    determineAlsaCtlPath =
+      case alsaCtlPath of
+        Just path -> do
+          found <- doesFileExist path
+          if found
+            then pure path
+            else throwIO . ErrorCall $
+                  "Specified alsactl file " ++ path ++ " does not exist"
+
+        Nothing -> do
+          (ec, path, err) <- readProcessWithExitCode "which" ["alsactl"] ""
+          unless (null err) $ hPutStrLn stderr err
+          case ec of
+            ExitSuccess -> pure $ trimTrailingNewline path
+            ExitFailure _ -> do
+              found <- doesFileExist defaultPath
+              if found
+                then pure defaultPath
+                else throwIO . ErrorCall $
+                      "alsactl not found in PATH or at " ++
+                      show defaultPath ++
+                      "; please specify with --" ++
+                      alsaCtlOptionName ++ "=/path/to/alsactl"
+
+
+-- This is necessarily very inefficient on 'String's
+trimTrailingNewline :: String -> String
+trimTrailingNewline x =
+  case reverse x of
+    '\n' : '\r' : y -> reverse y
+    '\n' : y -> reverse y
+    _ -> x
diff --git a/src/Xmobar/Plugins/Monitors/Batt.hs b/src/Xmobar/Plugins/Monitors/Batt.hs
new file mode 100644
index 0000000..80f4275
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Batt.hs
@@ -0,0 +1,247 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Batt
+-- Copyright   :  (c) 2010, 2011, 2012, 2013, 2015, 2016, 2018 Jose A Ortega
+--                (c) 2010 Andrea Rossato, Petr Rockai
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A battery monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Batt ( battConfig, runBatt, runBatt' ) where
+
+import Control.Exception (SomeException, handle)
+import Xmobar.Plugins.Monitors.Common
+import System.FilePath ((</>))
+import System.IO (IOMode(ReadMode), hGetLine, withFile)
+import System.Posix.Files (fileExist)
+import System.Console.GetOpt
+import Data.List (sort, sortBy, group)
+import Data.Maybe (fromMaybe)
+import Data.Ord (comparing)
+import Text.Read (readMaybe)
+
+data BattOpts = BattOpts
+  { onString :: String
+  , offString :: String
+  , idleString :: String
+  , posColor :: Maybe String
+  , lowWColor :: Maybe String
+  , mediumWColor :: Maybe String
+  , highWColor :: Maybe String
+  , lowThreshold :: Float
+  , highThreshold :: Float
+  , onlineFile :: FilePath
+  , scale :: Float
+  , onIconPattern :: Maybe IconPattern
+  , offIconPattern :: Maybe IconPattern
+  , idleIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: BattOpts
+defaultOpts = BattOpts
+  { onString = "On"
+  , offString = "Off"
+  , idleString = "On"
+  , posColor = Nothing
+  , lowWColor = Nothing
+  , mediumWColor = Nothing
+  , highWColor = Nothing
+  , lowThreshold = 10
+  , highThreshold = 12
+  , onlineFile = "AC/online"
+  , scale = 1e6
+  , onIconPattern = Nothing
+  , offIconPattern = Nothing
+  , idleIconPattern = Nothing
+  }
+
+options :: [OptDescr (BattOpts -> BattOpts)]
+options =
+  [ Option "O" ["on"] (ReqArg (\x o -> o { onString = x }) "") ""
+  , Option "o" ["off"] (ReqArg (\x o -> o { offString = x }) "") ""
+  , Option "i" ["idle"] (ReqArg (\x o -> o { idleString = x }) "") ""
+  , Option "p" ["positive"] (ReqArg (\x o -> o { posColor = Just x }) "") ""
+  , Option "l" ["low"] (ReqArg (\x o -> o { lowWColor = Just x }) "") ""
+  , Option "m" ["medium"] (ReqArg (\x o -> o { mediumWColor = Just x }) "") ""
+  , Option "h" ["high"] (ReqArg (\x o -> o { highWColor = Just x }) "") ""
+  , Option "L" ["lowt"] (ReqArg (\x o -> o { lowThreshold = read x }) "") ""
+  , Option "H" ["hight"] (ReqArg (\x o -> o { highThreshold = read x }) "") ""
+  , Option "f" ["online"] (ReqArg (\x o -> o { onlineFile = x }) "") ""
+  , Option "s" ["scale"] (ReqArg (\x o -> o {scale = read x}) "") ""
+  , Option "" ["on-icon-pattern"] (ReqArg (\x o ->
+     o { onIconPattern = Just $ parseIconPattern x }) "") ""
+  , Option "" ["off-icon-pattern"] (ReqArg (\x o ->
+     o { offIconPattern = Just $ parseIconPattern x }) "") ""
+  , Option "" ["idle-icon-pattern"] (ReqArg (\x o ->
+     o { idleIconPattern = Just $ parseIconPattern x }) "") ""
+  ]
+
+parseOpts :: [String] -> IO BattOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+data Status = Charging | Discharging | Full | Idle | Unknown deriving (Read, Eq)
+
+data Result = Result Float Float Float Status | NA
+
+sysDir :: FilePath
+sysDir = "/sys/class/power_supply"
+
+battConfig :: IO MConfig
+battConfig = mkMConfig
+       "Batt: <watts>, <left>% / <timeleft>" -- template
+       ["leftbar", "leftvbar", "left", "acstatus", "timeleft", "watts", "leftipat"] -- replacements
+
+data Files = Files
+  { fFull :: String
+  , fNow :: String
+  , fVoltage :: String
+  , fCurrent :: String
+  , fStatus :: String
+  , isCurrent :: Bool
+  } | NoFiles deriving Eq
+
+data Battery = Battery
+  { full :: !Float
+  , now :: !Float
+  , power :: !Float
+  , status :: !String
+  }
+
+safeFileExist :: String -> String -> IO Bool
+safeFileExist d f = handle noErrors $ fileExist (d </> f)
+  where noErrors = const (return False) :: SomeException -> IO Bool
+
+batteryFiles :: String -> IO Files
+batteryFiles bat =
+  do is_charge <- exists "charge_now"
+     is_energy <- if is_charge then return False else exists "energy_now"
+     is_power <- exists "power_now"
+     plain <- exists (if is_charge then "charge_full" else "energy_full")
+     let cf = if is_power then "power_now" else "current_now"
+         sf = if plain then "" else "_design"
+     return $ case (is_charge, is_energy) of
+       (True, _) -> files "charge" cf sf is_power
+       (_, True) -> files "energy" cf sf is_power
+       _ -> NoFiles
+  where prefix = sysDir </> bat
+        exists = safeFileExist prefix
+        files ch cf sf ip = Files { fFull = prefix </> ch ++ "_full" ++ sf
+                                  , fNow = prefix </> ch ++ "_now"
+                                  , fCurrent = prefix </> cf
+                                  , fVoltage = prefix </> "voltage_now"
+                                  , fStatus = prefix </> "status"
+                                  , isCurrent = not ip}
+
+haveAc :: FilePath -> IO Bool
+haveAc f =
+  handle onError $ withFile (sysDir </> f) ReadMode (fmap (== "1") . hGetLine)
+  where onError = const (return False) :: SomeException -> IO Bool
+
+readBattery :: Float -> Files -> IO Battery
+readBattery _ NoFiles = return $ Battery 0 0 0 "Unknown"
+readBattery sc files =
+    do a <- grab $ fFull files
+       b <- grab $ fNow files
+       d <- grab $ fCurrent files
+       s <- grabs $ fStatus files
+       let sc' = if isCurrent files then sc / 10 else sc
+           a' = max a b -- sometimes the reported max charge is lower than
+       return $ Battery (3600 * a' / sc') -- wattseconds
+                        (3600 * b / sc') -- wattseconds
+                        (d / sc') -- watts
+                        s -- string: Discharging/Charging/Full
+    where grab f = handle onError $ withFile f ReadMode (fmap read . hGetLine)
+          onError = const (return (-1)) :: SomeException -> IO Float
+          grabs f = handle onError' $ withFile f ReadMode hGetLine
+          onError' = const (return "Unknown") :: SomeException -> IO String
+
+-- sortOn is only available starting at ghc 7.10
+sortOn :: Ord b => (a -> b) -> [a] -> [a]
+sortOn f =
+  map snd . sortBy (comparing fst) . map (\x -> let y = f x in y `seq` (y, x))
+
+mostCommonDef :: Eq a => a -> [a] -> a
+mostCommonDef x xs = head $ last $ [x] : sortOn length (group xs)
+
+readBatteries :: BattOpts -> [Files] -> IO Result
+readBatteries opts bfs =
+    do let bfs' = filter (/= NoFiles) bfs
+       bats <- mapM (readBattery (scale opts)) (take 3 bfs')
+       ac <- haveAc (onlineFile opts)
+       let sign = if ac then 1 else -1
+           ft = sum (map full bats)
+           left = if ft > 0 then sum (map now bats) / ft else 0
+           watts = sign * sum (map power bats)
+           time = if watts == 0 then 0 else max 0 (sum $ map time' bats)
+           mwatts = if watts == 0 then 1 else sign * watts
+           time' b = (if ac then full b - now b else now b) / mwatts
+           statuses :: [Status]
+           statuses = map (fromMaybe Unknown . readMaybe)
+                          (sort (map status bats))
+           acst = mostCommonDef Unknown $ filter (Unknown/=) statuses
+           racst | acst /= Unknown = acst
+                 | time == 0 = Idle
+                 | ac = Charging
+                 | otherwise = Discharging
+       return $ if isNaN left then NA else Result left watts time racst
+
+runBatt :: [String] -> Monitor String
+runBatt = runBatt' ["BAT", "BAT0", "BAT1", "BAT2"]
+
+runBatt' :: [String] -> [String] -> Monitor String
+runBatt' bfs args = do
+  opts <- io $ parseOpts args
+  c <- io $ readBatteries opts =<< mapM batteryFiles bfs
+  suffix <- getConfigValue useSuffix
+  d <- getConfigValue decDigits
+  nas <- getConfigValue naString
+  case c of
+    Result x w t s ->
+      do l <- fmtPercent x
+         ws <- fmtWatts w opts suffix d
+         si <- getIconPattern opts s x
+         parseTemplate (l ++ [fmtStatus opts s nas, fmtTime $ floor t, ws, si])
+    NA -> getConfigValue naString
+  where fmtPercent :: Float -> Monitor [String]
+        fmtPercent x = do
+          let x' = minimum [1, x]
+          p <- showPercentWithColors x'
+          b <- showPercentBar (100 * x') x'
+          vb <- showVerticalBar (100 * x') x'
+          return [b, vb, p]
+        fmtWatts x o s d = do
+          ws <- showWithPadding $ showDigits d x ++ (if s then "W" else "")
+          return $ color x o ws
+        fmtTime :: Integer -> String
+        fmtTime x = hours ++ ":" ++ if length minutes == 2
+                                    then minutes else '0' : minutes
+          where hours = show (x `div` 3600)
+                minutes = show ((x `mod` 3600) `div` 60)
+        fmtStatus opts Idle _ = idleString opts
+        fmtStatus _ Unknown na = na
+        fmtStatus opts Full _ = idleString opts
+        fmtStatus opts Charging _ = onString opts
+        fmtStatus opts Discharging _ = offString opts
+        maybeColor Nothing str = str
+        maybeColor (Just c) str = "<fc=" ++ c ++ ">" ++ str ++ "</fc>"
+        color x o | x >= 0 = maybeColor (posColor o)
+                  | -x >= highThreshold o = maybeColor (highWColor o)
+                  | -x >= lowThreshold o = maybeColor (mediumWColor o)
+                  | otherwise = maybeColor (lowWColor o)
+        getIconPattern opts st x = do
+          let x' = minimum [1, x]
+          case st of
+               Unknown -> showIconPattern (offIconPattern opts) x'
+               Idle -> showIconPattern (idleIconPattern opts) x'
+               Full -> showIconPattern (idleIconPattern opts) x'
+               Charging -> showIconPattern (onIconPattern opts) x'
+               Discharging -> showIconPattern (offIconPattern opts) x'
diff --git a/src/Xmobar/Plugins/Monitors/Bright.hs b/src/Xmobar/Plugins/Monitors/Bright.hs
new file mode 100644
index 0000000..fe72219
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Bright.hs
@@ -0,0 +1,99 @@
+-----------------------------------------------------------------------------
+---- |
+---- Module      :  Plugins.Monitors.Birght
+---- Copyright   :  (c) Martin Perner
+---- License     :  BSD-style (see LICENSE)
+----
+---- Maintainer  :  Martin Perner <martin@perner.cc>
+---- Stability   :  unstable
+---- Portability :  unportable
+----
+----  A screen brightness monitor for Xmobar
+----
+-------------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Bright (brightConfig, runBright) where
+
+import Control.Applicative ((<$>))
+import Control.Exception (SomeException, handle)
+import qualified Data.ByteString.Lazy.Char8 as B
+import System.FilePath ((</>))
+import System.Posix.Files (fileExist)
+import System.Console.GetOpt
+
+import Xmobar.Plugins.Monitors.Common
+
+data BrightOpts = BrightOpts { subDir :: String
+                             , currBright :: String
+                             , maxBright :: String
+                             , curBrightIconPattern :: Maybe IconPattern
+                             }
+
+defaultOpts :: BrightOpts
+defaultOpts = BrightOpts { subDir = "acpi_video0"
+                         , currBright = "actual_brightness"
+                         , maxBright = "max_brightness"
+                         , curBrightIconPattern = Nothing
+                         }
+
+options :: [OptDescr (BrightOpts -> BrightOpts)]
+options = [ Option "D" ["device"] (ReqArg (\x o -> o { subDir = x }) "") ""
+          , Option "C" ["curr"] (ReqArg (\x o -> o { currBright = x }) "") ""
+          , Option "M" ["max"] (ReqArg (\x o -> o { maxBright = x }) "") ""
+          , Option "" ["brightness-icon-pattern"] (ReqArg (\x o ->
+             o { curBrightIconPattern = Just $ parseIconPattern x }) "") ""
+          ]
+
+-- from Batt.hs
+parseOpts :: [String] -> IO BrightOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+sysDir :: FilePath
+sysDir = "/sys/class/backlight/"
+
+brightConfig :: IO MConfig
+brightConfig = mkMConfig "<percent>" -- template
+                         ["vbar", "percent", "bar", "ipat"] -- replacements
+
+data Files = Files { fCurr :: String
+                   , fMax :: String
+                   }
+           | NoFiles
+
+brightFiles :: BrightOpts -> IO Files
+brightFiles opts = do
+  is_curr <- fileExist $ fCurr files
+  is_max  <- fileExist $ fCurr files
+  return (if is_curr && is_max then files else NoFiles)
+  where prefix = sysDir </> subDir opts
+        files = Files { fCurr = prefix </> currBright opts
+                      , fMax = prefix </> maxBright opts
+                      }
+
+runBright :: [String] ->  Monitor String
+runBright args = do
+  opts <- io $ parseOpts args
+  f <- io $ brightFiles opts
+  c <- io $ readBright f
+  case f of
+    NoFiles -> return "hurz"
+    _ -> fmtPercent opts c >>= parseTemplate
+  where fmtPercent :: BrightOpts -> Float -> Monitor [String]
+        fmtPercent opts c = do r <- showVerticalBar (100 * c) c
+                               s <- showPercentWithColors c
+                               t <- showPercentBar (100 * c) c
+                               d <- showIconPattern (curBrightIconPattern opts) c
+                               return [r,s,t,d]
+
+readBright :: Files -> IO Float
+readBright NoFiles = return 0
+readBright files = do
+  currVal<- grab $ fCurr files
+  maxVal <- grab $ fMax files
+  return (currVal / maxVal)
+  where grab f = handle handler (read . B.unpack <$> B.readFile f)
+        handler = const (return 0) :: SomeException -> IO Float
+
diff --git a/src/Xmobar/Plugins/Monitors/CatInt.hs b/src/Xmobar/Plugins/Monitors/CatInt.hs
new file mode 100644
index 0000000..781eded
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/CatInt.hs
@@ -0,0 +1,25 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.CatInt
+-- Copyright   :  (c) Nathaniel Wesley Filardo
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Nathaniel Wesley Filardo
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.CatInt where
+
+import Xmobar.Plugins.Monitors.Common
+import Xmobar.Plugins.Monitors.CoreCommon
+
+catIntConfig :: IO MConfig
+catIntConfig = mkMConfig "<v>" ["v"]
+
+runCatInt :: FilePath -> [String] -> Monitor String
+runCatInt p _ =
+  let failureMessage = "Cannot read: " ++ show p
+      fmt x = show (truncate x :: Int)
+  in  checkedDataRetrieval failureMessage [[p]] Nothing id fmt
diff --git a/src/Xmobar/Plugins/Monitors/Common.hs b/src/Xmobar/Plugins/Monitors/Common.hs
new file mode 100644
index 0000000..f683874
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Common.hs
@@ -0,0 +1,545 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Common
+-- Copyright   :  (c) 2010, 2011, 2013, 2016, 2017, 2018 Jose Antonio Ortega Ruiz
+--                (c) 2007-2010 Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- Utilities used by xmobar's monitors
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Common (
+                       -- * Monitors
+                       -- $monitor
+                         Monitor
+                       , MConfig (..)
+                       , Opts (..)
+                       , setConfigValue
+                       , getConfigValue
+                       , mkMConfig
+                       , runM
+                       , runMD
+                       , runMB
+                       , runMBD
+                       , io
+                       -- * Parsers
+                       -- $parsers
+                       , runP
+                       , skipRestOfLine
+                       , getNumbers
+                       , getNumbersAsString
+                       , getAllBut
+                       , getAfterString
+                       , skipTillString
+                       , parseTemplate
+                       , parseTemplate'
+                       -- ** String Manipulation
+                       -- $strings
+                       , IconPattern
+                       , parseIconPattern
+                       , padString
+                       , showWithPadding
+                       , showWithColors
+                       , showWithColors'
+                       , showPercentWithColors
+                       , showPercentsWithColors
+                       , showPercentBar
+                       , showVerticalBar
+                       , showIconPattern
+                       , showLogBar
+                       , showLogVBar
+                       , showLogIconPattern
+                       , showWithUnits
+                       , takeDigits
+                       , showDigits
+                       , floatToPercent
+                       , parseFloat
+                       , parseInt
+                       , stringParser
+                       ) where
+
+
+import Control.Applicative ((<$>))
+import Control.Monad.Reader
+import qualified Data.ByteString.Lazy.Char8 as B
+import Data.IORef
+import qualified Data.Map as Map
+import Data.List
+import Data.Char
+import Numeric
+import Text.ParserCombinators.Parsec
+import System.Console.GetOpt
+import Control.Exception (SomeException,handle)
+
+import Xmobar.Utils
+
+-- $monitor
+
+type Monitor a = ReaderT MConfig IO a
+
+data MConfig =
+    MC { normalColor :: IORef (Maybe String)
+       , low :: IORef Int
+       , lowColor :: IORef (Maybe String)
+       , high :: IORef Int
+       , highColor :: IORef (Maybe String)
+       , template :: IORef String
+       , export :: IORef [String]
+       , ppad :: IORef Int
+       , decDigits :: IORef Int
+       , minWidth :: IORef Int
+       , maxWidth :: IORef Int
+       , maxWidthEllipsis :: IORef String
+       , padChars :: IORef String
+       , padRight :: IORef Bool
+       , barBack :: IORef String
+       , barFore :: IORef String
+       , barWidth :: IORef Int
+       , useSuffix :: IORef Bool
+       , naString :: IORef String
+       , maxTotalWidth :: IORef Int
+       , maxTotalWidthEllipsis :: IORef String
+       }
+
+-- | from 'http:\/\/www.haskell.org\/hawiki\/MonadState'
+type Selector a = MConfig -> IORef a
+
+sel :: Selector a -> Monitor a
+sel s =
+    do hs <- ask
+       liftIO $ readIORef (s hs)
+
+mods :: Selector a -> (a -> a) -> Monitor ()
+mods s m =
+    do v <- ask
+       io $ modifyIORef (s v) m
+
+setConfigValue :: a -> Selector a -> Monitor ()
+setConfigValue v s =
+       mods s (const v)
+
+getConfigValue :: Selector a -> Monitor a
+getConfigValue = sel
+
+mkMConfig :: String
+          -> [String]
+          -> IO MConfig
+mkMConfig tmpl exprts =
+    do lc <- newIORef Nothing
+       l  <- newIORef 33
+       nc <- newIORef Nothing
+       h  <- newIORef 66
+       hc <- newIORef Nothing
+       t  <- newIORef tmpl
+       e  <- newIORef exprts
+       p  <- newIORef 0
+       d  <- newIORef 0
+       mn <- newIORef 0
+       mx <- newIORef 0
+       mel <- newIORef ""
+       pc <- newIORef " "
+       pr <- newIORef False
+       bb <- newIORef ":"
+       bf <- newIORef "#"
+       bw <- newIORef 10
+       up <- newIORef False
+       na <- newIORef "N/A"
+       mt <- newIORef 0
+       mtel <- newIORef ""
+       return $ MC nc l lc h hc t e p d mn mx mel pc pr bb bf bw up na mt mtel
+
+data Opts = HighColor String
+          | NormalColor String
+          | LowColor String
+          | Low String
+          | High String
+          | Template String
+          | PercentPad String
+          | DecDigits String
+          | MinWidth String
+          | MaxWidth String
+          | Width String
+          | WidthEllipsis String
+          | PadChars String
+          | PadAlign String
+          | BarBack String
+          | BarFore String
+          | BarWidth String
+          | UseSuffix String
+          | NAString String
+          | MaxTotalWidth String
+          | MaxTotalWidthEllipsis String
+
+options :: [OptDescr Opts]
+options =
+    [
+      Option "H" ["High"] (ReqArg High "number") "The high threshold"
+    , Option "L" ["Low"] (ReqArg Low "number") "The low threshold"
+    , Option "h" ["high"] (ReqArg HighColor "color number") "Color for the high threshold: ex \"#FF0000\""
+    , Option "n" ["normal"] (ReqArg NormalColor "color number") "Color for the normal threshold: ex \"#00FF00\""
+    , Option "l" ["low"] (ReqArg LowColor "color number") "Color for the low threshold: ex \"#0000FF\""
+    , Option "t" ["template"] (ReqArg Template "output template") "Output template."
+    , Option "S" ["suffix"] (ReqArg UseSuffix "True/False") "Use % to display percents or other suffixes."
+    , Option "d" ["ddigits"] (ReqArg DecDigits "decimal digits") "Number of decimal digits to display."
+    , Option "p" ["ppad"] (ReqArg PercentPad "percent padding") "Minimum percentage width."
+    , Option "m" ["minwidth"] (ReqArg MinWidth "minimum width") "Minimum field width"
+    , Option "M" ["maxwidth"] (ReqArg MaxWidth "maximum width") "Maximum field width"
+    , Option "w" ["width"] (ReqArg Width "fixed width") "Fixed field width"
+    , Option "e" ["maxwidthellipsis"] (ReqArg WidthEllipsis "Maximum width ellipsis") "Ellipsis to be added to the field when it has reached its max width."
+    , Option "c" ["padchars"] (ReqArg PadChars "padding chars") "Characters to use for padding"
+    , Option "a" ["align"] (ReqArg PadAlign "padding alignment") "'l' for left padding, 'r' for right"
+    , Option "b" ["bback"] (ReqArg BarBack "bar background") "Characters used to draw bar backgrounds"
+    , Option "f" ["bfore"] (ReqArg BarFore "bar foreground") "Characters used to draw bar foregrounds"
+    , Option "W" ["bwidth"] (ReqArg BarWidth "bar width") "Bar width"
+    , Option "x" ["nastring"] (ReqArg NAString "N/A string") "String used when the monitor is not available"
+    , Option "T" ["maxtwidth"] (ReqArg MaxTotalWidth "Maximum total width") "Maximum total width"
+    , Option "E" ["maxtwidthellipsis"] (ReqArg MaxTotalWidthEllipsis "Maximum total width ellipsis") "Ellipsis to be added to the total text when it has reached its max width."
+    ]
+
+doArgs :: [String] -> ([String] -> Monitor String) -> ([String] -> Monitor Bool) -> Monitor String
+doArgs args action detect =
+    case getOpt Permute options args of
+      (o, n, [])   -> do doConfigOptions o
+                         ready <- detect n
+                         if ready
+                            then action n
+                            else return "<Waiting...>"
+      (_, _, errs) -> return (concat errs)
+
+doConfigOptions :: [Opts] -> Monitor ()
+doConfigOptions [] = io $ return ()
+doConfigOptions (o:oo) =
+    do let next = doConfigOptions oo
+           nz s = let x = read s in max 0 x
+           bool = (`elem` ["True", "true", "Yes", "yes", "On", "on"])
+       (case o of
+          High                  h -> setConfigValue (read h) high
+          Low                   l -> setConfigValue (read l) low
+          HighColor             c -> setConfigValue (Just c) highColor
+          NormalColor           c -> setConfigValue (Just c) normalColor
+          LowColor              c -> setConfigValue (Just c) lowColor
+          Template              t -> setConfigValue t template
+          PercentPad            p -> setConfigValue (nz p) ppad
+          DecDigits             d -> setConfigValue (nz d) decDigits
+          MinWidth              w -> setConfigValue (nz w) minWidth
+          MaxWidth              w -> setConfigValue (nz w) maxWidth
+          Width                 w -> setConfigValue (nz w) minWidth >>
+                                   setConfigValue (nz w) maxWidth
+          WidthEllipsis         e -> setConfigValue e maxWidthEllipsis
+          PadChars              s -> setConfigValue s padChars
+          PadAlign              a -> setConfigValue ("r" `isPrefixOf` a) padRight
+          BarBack               s -> setConfigValue s barBack
+          BarFore               s -> setConfigValue s barFore
+          BarWidth              w -> setConfigValue (nz w) barWidth
+          UseSuffix             u -> setConfigValue (bool u) useSuffix
+          NAString              s -> setConfigValue s naString
+          MaxTotalWidth         w -> setConfigValue (nz w) maxTotalWidth
+          MaxTotalWidthEllipsis e -> setConfigValue e maxTotalWidthEllipsis) >> next
+
+runM :: [String] -> IO MConfig -> ([String] -> Monitor String) -> Int
+        -> (String -> IO ()) -> IO ()
+runM args conf action r = runMB args conf action (tenthSeconds r)
+
+runMD :: [String] -> IO MConfig -> ([String] -> Monitor String) -> Int
+        -> ([String] -> Monitor Bool) -> (String -> IO ()) -> IO ()
+runMD args conf action r = runMBD args conf action (tenthSeconds r)
+
+runMB :: [String] -> IO MConfig -> ([String] -> Monitor String) -> IO ()
+        -> (String -> IO ()) -> IO ()
+runMB args conf action wait = runMBD args conf action wait (\_ -> return True)
+
+runMBD :: [String] -> IO MConfig -> ([String] -> Monitor String) -> IO ()
+        -> ([String] -> Monitor Bool) -> (String -> IO ()) -> IO ()
+runMBD args conf action wait detect cb = handle (cb . showException) loop
+  where ac = doArgs args action detect
+        loop = conf >>= runReaderT ac >>= cb >> wait >> loop
+
+showException :: SomeException -> String
+showException = ("error: "++) . show . flip asTypeOf undefined
+
+io :: IO a -> Monitor a
+io = liftIO
+
+-- $parsers
+
+runP :: Parser [a] -> String -> IO [a]
+runP p i =
+    case parse p "" i of
+      Left _ -> return []
+      Right x  -> return x
+
+getAllBut :: String -> Parser String
+getAllBut s =
+    manyTill (noneOf s) (char $ head s)
+
+getNumbers :: Parser Float
+getNumbers = skipMany space >> many1 digit >>= \n -> return $ read n
+
+getNumbersAsString :: Parser String
+getNumbersAsString = skipMany space >> many1 digit >>= \n -> return n
+
+skipRestOfLine :: Parser Char
+skipRestOfLine =
+    do many $ noneOf "\n\r"
+       newline
+
+getAfterString :: String -> Parser String
+getAfterString s =
+    do { try $ manyTill skipRestOfLine $ string s
+       ; manyTill anyChar newline
+       } <|> return ""
+
+skipTillString :: String -> Parser String
+skipTillString s =
+    manyTill skipRestOfLine $ string s
+
+-- | Parses the output template string
+templateStringParser :: Parser (String,String,String)
+templateStringParser =
+    do { s <- nonPlaceHolder
+       ; com <- templateCommandParser
+       ; ss <- nonPlaceHolder
+       ; return (s, com, ss)
+       }
+    where
+      nonPlaceHolder = fmap concat . many $
+                       many1 (noneOf "<") <|> colorSpec <|> iconSpec
+
+-- | Recognizes color specification and returns it unchanged
+colorSpec :: Parser String
+colorSpec = try (string "</fc>") <|> try (
+            do string "<fc="
+               s <- many1 (alphaNum <|> char ',' <|> char '#')
+               char '>'
+               return $ "<fc=" ++ s ++ ">")
+
+-- | Recognizes icon specification and returns it unchanged
+iconSpec :: Parser String
+iconSpec = try (do string "<icon="
+                   i <- manyTill (noneOf ">") (try (string "/>"))
+                   return $ "<icon=" ++ i ++ "/>")
+
+-- | Parses the command part of the template string
+templateCommandParser :: Parser String
+templateCommandParser =
+    do { char '<'
+       ; com <- many $ noneOf ">"
+       ; char '>'
+       ; return com
+       }
+
+-- | Combines the template parsers
+templateParser :: Parser [(String,String,String)]
+templateParser = many templateStringParser --"%")
+
+trimTo :: Int -> String -> String -> (Int, String)
+trimTo n p "" = (n, p)
+trimTo n p ('<':cs) = trimTo n p' s
+  where p' = p ++ "<" ++ takeWhile (/= '>') cs ++ ">"
+        s = drop 1 (dropWhile (/= '>') cs)
+trimTo 0 p s = trimTo 0 p (dropWhile (/= '<') s)
+trimTo n p s = let p' = takeWhile (/= '<') s
+                   s' = dropWhile (/= '<') s
+               in
+                 if length p' <= n
+                 then trimTo (n - length p') (p ++ p') s'
+                 else trimTo 0 (p ++ take n p') s'
+
+-- | Takes a list of strings that represent the values of the exported
+-- keys. The strings are joined with the exported keys to form a map
+-- to be combined with 'combine' to the parsed template. Returns the
+-- final output of the monitor, trimmed to MaxTotalWidth if that
+-- configuration value is positive.
+parseTemplate :: [String] -> Monitor String
+parseTemplate l =
+    do t <- getConfigValue template
+       e <- getConfigValue export
+       w <- getConfigValue maxTotalWidth
+       ell <- getConfigValue maxTotalWidthEllipsis
+       let m = Map.fromList . zip e $ l
+       s <- parseTemplate' t m
+       let (n, s') = if w > 0 && length s > w
+                     then trimTo (w - length ell) "" s
+                     else (1, s)
+       return $ if n > 0 then s' else s' ++ ell
+
+-- | Parses the template given to it with a map of export values and combines
+-- them
+parseTemplate' :: String -> Map.Map String String -> Monitor String
+parseTemplate' t m =
+    do s <- io $ runP templateParser t
+       combine m s
+
+-- | Given a finite "Map" and a parsed template t produces the
+-- | resulting output string as the output of the monitor.
+combine :: Map.Map String String -> [(String, String, String)] -> Monitor String
+combine _ [] = return []
+combine m ((s,ts,ss):xs) =
+    do next <- combine m xs
+       str <- case Map.lookup ts m of
+         Nothing -> return $ "<" ++ ts ++ ">"
+         Just  r -> let f "" = r; f n = n; in f <$> parseTemplate' r m
+       return $ s ++ str ++ ss ++ next
+
+-- $strings
+
+type IconPattern = Int -> String
+
+parseIconPattern :: String -> IconPattern
+parseIconPattern path =
+    let spl = splitOnPercent path
+    in \i -> intercalate (show i) spl
+  where splitOnPercent [] = [[]]
+        splitOnPercent ('%':'%':xs) = [] : splitOnPercent xs
+        splitOnPercent (x:xs) =
+            let rest = splitOnPercent xs
+            in (x : head rest) : tail rest
+
+type Pos = (Int, Int)
+
+takeDigits :: Int -> Float -> Float
+takeDigits d n =
+    fromIntegral (round (n * fact) :: Int) / fact
+  where fact = 10 ^ d
+
+showDigits :: (RealFloat a) => Int -> a -> String
+showDigits d n = showFFloat (Just d) n ""
+
+showWithUnits :: Int -> Int -> Float -> String
+showWithUnits d n x
+  | x < 0 = '-' : showWithUnits d n (-x)
+  | n > 3 || x < 10^(d + 1) = show (round x :: Int) ++ units n
+  | x <= 1024 = showDigits d (x/1024) ++ units (n+1)
+  | otherwise = showWithUnits d (n+1) (x/1024)
+  where units = (!!) ["B", "K", "M", "G", "T"]
+
+padString :: Int -> Int -> String -> Bool -> String -> String -> String
+padString mnw mxw pad pr ellipsis s =
+  let len = length s
+      rmin = if mnw <= 0 then 1 else mnw
+      rmax = if mxw <= 0 then max len rmin else mxw
+      (rmn, rmx) = if rmin <= rmax then (rmin, rmax) else (rmax, rmin)
+      rlen = min (max rmn len) rmx
+  in if rlen < len then
+       take rlen s ++ ellipsis
+     else let ps = take (rlen - len) (cycle pad)
+          in if pr then s ++ ps else ps ++ s
+
+parseFloat :: String -> Float
+parseFloat s = case readFloat s of
+  (v, _):_ -> v
+  _ -> 0
+
+parseInt :: String -> Int
+parseInt s = case readDec s of
+  (v, _):_ -> v
+  _ -> 0
+
+floatToPercent :: Float -> Monitor String
+floatToPercent n =
+  do pad <- getConfigValue ppad
+     pc <- getConfigValue padChars
+     pr <- getConfigValue padRight
+     up <- getConfigValue useSuffix
+     let p = showDigits 0 (n * 100)
+         ps = if up then "%" else ""
+     return $ padString pad pad pc pr "" p ++ ps
+
+stringParser :: Pos -> B.ByteString -> String
+stringParser (x,y) =
+     B.unpack . li x . B.words . li y . B.lines
+    where li i l | length l > i = l !! i
+                 | otherwise    = B.empty
+
+setColor :: String -> Selector (Maybe String) -> Monitor String
+setColor str s =
+    do a <- getConfigValue s
+       case a of
+            Nothing -> return str
+            Just c -> return $
+                "<fc=" ++ c ++ ">" ++ str ++ "</fc>"
+
+showWithPadding :: String -> Monitor String
+showWithPadding s =
+    do mn <- getConfigValue minWidth
+       mx <- getConfigValue maxWidth
+       p <- getConfigValue padChars
+       pr <- getConfigValue padRight
+       ellipsis <- getConfigValue maxWidthEllipsis
+       return $ padString mn mx p pr ellipsis s
+
+colorizeString :: (Num a, Ord a) => a -> String -> Monitor String
+colorizeString x s = do
+    h <- getConfigValue high
+    l <- getConfigValue low
+    let col = setColor s
+        [ll,hh] = map fromIntegral $ sort [l, h] -- consider high < low
+    head $ [col highColor   | x > hh ] ++
+           [col normalColor | x > ll ] ++
+           [col lowColor    | True]
+
+showWithColors :: (Num a, Ord a) => (a -> String) -> a -> Monitor String
+showWithColors f x = showWithPadding (f x) >>= colorizeString x
+
+showWithColors' :: (Num a, Ord a) => String -> a -> Monitor String
+showWithColors' str = showWithColors (const str)
+
+showPercentsWithColors :: [Float] -> Monitor [String]
+showPercentsWithColors fs =
+  do fstrs <- mapM floatToPercent fs
+     zipWithM (showWithColors . const) fstrs (map (*100) fs)
+
+showPercentWithColors :: Float -> Monitor String
+showPercentWithColors f = fmap head $ showPercentsWithColors [f]
+
+showPercentBar :: Float -> Float -> Monitor String
+showPercentBar v x = do
+  bb <- getConfigValue barBack
+  bf <- getConfigValue barFore
+  bw <- getConfigValue barWidth
+  let len = min bw $ round (fromIntegral bw * x)
+  s <- colorizeString v (take len $ cycle bf)
+  return $ s ++ take (bw - len) (cycle bb)
+
+showIconPattern :: Maybe IconPattern -> Float -> Monitor String
+showIconPattern Nothing _ = return ""
+showIconPattern (Just str) x = return $ str $ convert $ 100 * x
+  where convert val
+          | t <= 0 = 0
+          | t > 8 = 8
+          | otherwise = t
+          where t = round val `div` 12
+
+showVerticalBar :: Float -> Float -> Monitor String
+showVerticalBar v x = colorizeString v [convert $ 100 * x]
+  where convert :: Float -> Char
+        convert val
+          | t <= 9600 = ' '
+          | t > 9608 = chr 9608
+          | otherwise = chr t
+          where t = 9600 + (round val `div` 12)
+
+logScaling :: Float -> Float -> Monitor Float
+logScaling f v = do
+  h <- fromIntegral `fmap` getConfigValue high
+  l <- fromIntegral `fmap` getConfigValue low
+  bw <- fromIntegral `fmap` getConfigValue barWidth
+  let [ll, hh] = sort [l, h]
+      scaled x | x == 0.0 = 0
+               | x <= ll = 1 / bw
+               | otherwise = f + logBase 2 (x / hh) / bw
+  return $ scaled v
+
+showLogBar :: Float -> Float -> Monitor String
+showLogBar f v = logScaling f v >>= showPercentBar v
+
+showLogVBar :: Float -> Float -> Monitor String
+showLogVBar f v = logScaling f v >>= showVerticalBar v
+
+showLogIconPattern :: Maybe IconPattern -> Float -> Float -> Monitor String
+showLogIconPattern str f v = logScaling f v >>= showIconPattern str
diff --git a/src/Xmobar/Plugins/Monitors/CoreCommon.hs b/src/Xmobar/Plugins/Monitors/CoreCommon.hs
new file mode 100644
index 0000000..a84198e
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/CoreCommon.hs
@@ -0,0 +1,138 @@
+{-# LANGUAGE CPP, PatternGuards #-}
+
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.CoreCommon
+-- Copyright   :  (c) Juraj Hercek
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Juraj Hercek <juhe_haskell@hck.sk>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- The common part for cpu core monitors (e.g. cpufreq, coretemp)
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.CoreCommon where
+
+#if __GLASGOW_HASKELL__ < 800
+import Control.Applicative
+#endif
+
+import Data.Char hiding (Space)
+import Data.Function
+import Data.List
+import Data.Maybe
+import Xmobar.Plugins.Monitors.Common
+import System.Directory
+
+checkedDataRetrieval :: (Ord a, Num a)
+                     => String -> [[String]] -> Maybe (String, String -> Int)
+                     -> (Double -> a) -> (a -> String) -> Monitor String
+checkedDataRetrieval msg paths lbl trans fmt =
+  fmap (fromMaybe msg . listToMaybe . catMaybes) $
+    mapM (\p -> retrieveData p lbl trans fmt) paths
+
+retrieveData :: (Ord a, Num a)
+             => [String] -> Maybe (String, String -> Int)
+             -> (Double -> a) -> (a -> String) -> Monitor (Maybe String)
+retrieveData path lbl trans fmt = do
+  pairs <- map snd . sortBy (compare `on` fst) <$>
+             (mapM readFiles =<< findFilesAndLabel path lbl)
+  if null pairs
+    then return Nothing
+    else Just <$> (     parseTemplate
+                    =<< mapM (showWithColors fmt . trans . read) pairs
+                  )
+
+-- | Represents the different types of path components
+data Comp = Fix String
+          | Var [String]
+          deriving Show
+
+-- | Used to represent parts of file names separated by slashes and spaces
+data CompOrSep = Slash
+               | Space
+               | Comp String
+               deriving (Eq, Show)
+
+-- | Function to turn a list of of strings into a list of path components
+pathComponents :: [String] -> [Comp]
+pathComponents = joinComps . drop 2 . intercalate [Space] . map splitParts
+  where
+    splitParts p | (l, _:r) <- break (== '/') p = Comp l : Slash : splitParts r
+                 | otherwise                    = [Comp p]
+
+    joinComps = uncurry joinComps' . partition isComp
+
+    isComp (Comp _) = True
+    isComp _        = False
+
+    fromComp (Comp s) = s
+    fromComp _        = error "fromComp applied to value other than (Comp _)"
+
+    joinComps' cs []     = [Fix $ fromComp $ head cs] -- cs should have only one element here,
+                                                      -- but this keeps the pattern matching
+                                                      -- exhaustive
+    joinComps' cs (p:ps) = let (ss, ps') = span (== p) ps
+                               ct        = if null ps' || (p == Space) then length ss + 1
+                                                                       else length ss
+                               (ls, rs)  = splitAt (ct+1) cs
+                               c         = case p of
+                                             Space -> Var $ map fromComp ls
+                                             Slash -> Fix $ intercalate "/" $ map fromComp ls
+                                             _     -> error "Should not happen"
+                           in  if null ps' then [c]
+                                           else c:joinComps' rs (drop ct ps)
+
+-- | Function to find all files matching the given path and possible label file.
+-- The path must be absolute (start with a leading slash).
+findFilesAndLabel :: [String] -> Maybe (String, String -> Int)
+          -> Monitor [(String, Either Int (String, String -> Int))]
+findFilesAndLabel path lbl  =  catMaybes
+                   <$> (     mapM addLabel . zip [0..] . sort
+                         =<< recFindFiles (pathComponents path) "/"
+                       )
+  where
+    addLabel (i, f) = maybe (return $ Just (f, Left i))
+                            (uncurry (justIfExists f))
+                            lbl
+
+    justIfExists f s t = let f' = take (length f - length s) f ++ s
+                         in  ifthen (Just (f, Right (f', t))) Nothing <$> io (doesFileExist f')
+
+    recFindFiles [] d  =  ifthen [d] []
+                      <$> io (if null d then return False else doesFileExist d)
+    recFindFiles ps d  =  ifthen (recFindFiles' ps d) (return [])
+                      =<< io (if null d then return True else doesDirectoryExist d)
+
+    recFindFiles' []         _  =  error "Should not happen"
+    recFindFiles' (Fix p:ps) d  =  recFindFiles ps (d ++ "/" ++ p)
+    recFindFiles' (Var p:ps) d  =  concat
+                               <$> ((mapM (recFindFiles ps
+                                           . (\f -> d ++ "/" ++ f))
+                                      . filter (matchesVar p))
+                                     =<< io (getDirectoryContents d)
+                                   )
+
+    matchesVar []     _  = False
+    matchesVar [v]    f  = v == f
+    matchesVar (v:vs) f  = let f'  = drop (length v) f
+                               f'' = dropWhile isDigit f'
+                           in  and [ v `isPrefixOf` f
+                                   , not (null f')
+                                   , isDigit (head f')
+                                   , matchesVar vs f''
+                                   ]
+
+-- | Function to read the contents of the given file(s)
+readFiles :: (String, Either Int (String, String -> Int))
+          -> Monitor (Int, String)
+readFiles (fval, flbl) = (,) <$> either return (\(f, ex) -> fmap ex
+                                                            $ io $ readFile f) flbl
+                             <*> io (readFile fval)
+
+-- | Function that captures if-then-else
+ifthen :: a -> a -> Bool -> a
+ifthen thn els cnd = if cnd then thn else els
diff --git a/src/Xmobar/Plugins/Monitors/CoreTemp.hs b/src/Xmobar/Plugins/Monitors/CoreTemp.hs
new file mode 100644
index 0000000..48fe428
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/CoreTemp.hs
@@ -0,0 +1,45 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.CoreTemp
+-- Copyright   :  (c) Juraj Hercek
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Juraj Hercek <juhe_haskell@hck.sk>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A core temperature monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.CoreTemp where
+
+import Xmobar.Plugins.Monitors.Common
+import Xmobar.Plugins.Monitors.CoreCommon
+
+
+import Data.Char (isDigit)
+
+-- |
+-- Core temperature default configuration. Default template contains only one
+-- core temperature, user should specify custom template in order to get more
+-- core frequencies.
+coreTempConfig :: IO MConfig
+coreTempConfig = mkMConfig
+       "Temp: <core0>C" -- template
+       (map ((++) "core" . show) [0 :: Int ..]) -- available
+                                                -- replacements
+
+-- |
+-- Function retrieves monitor string holding the core temperature
+-- (or temperatures)
+runCoreTemp :: [String] -> Monitor String
+runCoreTemp _ = do
+   dn <- getConfigValue decDigits
+   failureMessage <- getConfigValue naString
+   let path = ["/sys/bus/platform/devices/coretemp.", "/temp", "_input"]
+       path' = ["/sys/bus/platform/devices/coretemp.", "/hwmon/hwmon", "/temp", "_input"]
+       lbl  = Just ("_label", read . dropWhile (not . isDigit))
+       divisor = 1e3 :: Double
+       show' = showDigits (max 0 dn)
+   checkedDataRetrieval failureMessage [path, path'] lbl (/divisor) show'
diff --git a/src/Xmobar/Plugins/Monitors/Cpu.hs b/src/Xmobar/Plugins/Monitors/Cpu.hs
new file mode 100644
index 0000000..6befe7d
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Cpu.hs
@@ -0,0 +1,88 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Cpu
+-- Copyright   :  (c) 2011, 2017 Jose Antonio Ortega Ruiz
+--                (c) 2007-2010 Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A cpu monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Cpu (startCpu) where
+
+import Xmobar.Plugins.Monitors.Common
+import qualified Data.ByteString.Lazy.Char8 as B
+import Data.IORef (IORef, newIORef, readIORef, writeIORef)
+import System.Console.GetOpt
+
+newtype CpuOpts = CpuOpts
+  { loadIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: CpuOpts
+defaultOpts = CpuOpts
+  { loadIconPattern = Nothing
+  }
+
+options :: [OptDescr (CpuOpts -> CpuOpts)]
+options =
+  [ Option "" ["load-icon-pattern"] (ReqArg (\x o ->
+     o { loadIconPattern = Just $ parseIconPattern x }) "") ""
+  ]
+
+parseOpts :: [String] -> IO CpuOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+cpuConfig :: IO MConfig
+cpuConfig = mkMConfig
+       "Cpu: <total>%"
+       ["bar","vbar","ipat","total","user","nice","system","idle","iowait"]
+
+type CpuDataRef = IORef [Int]
+
+cpuData :: IO [Int]
+cpuData = cpuParser `fmap` B.readFile "/proc/stat"
+
+cpuParser :: B.ByteString -> [Int]
+cpuParser = map (read . B.unpack) . tail . B.words . head . B.lines
+
+parseCpu :: CpuDataRef -> IO [Float]
+parseCpu cref =
+    do a <- readIORef cref
+       b <- cpuData
+       writeIORef cref b
+       let dif = zipWith (-) b a
+           tot = fromIntegral $ sum dif
+           percent = map ((/ tot) . fromIntegral) dif
+       return percent
+
+formatCpu :: CpuOpts -> [Float] -> Monitor [String]
+formatCpu _ [] = return $ replicate 8 ""
+formatCpu opts xs = do
+  let t = sum $ take 3 xs
+  b <- showPercentBar (100 * t) t
+  v <- showVerticalBar (100 * t) t
+  d <- showIconPattern (loadIconPattern opts) t
+  ps <- showPercentsWithColors (t:xs)
+  return (b:v:d:ps)
+
+runCpu :: CpuDataRef -> [String] -> Monitor String
+runCpu cref argv =
+    do c <- io (parseCpu cref)
+       opts <- io $ parseOpts argv
+       l <- formatCpu opts c
+       parseTemplate l
+
+startCpu :: [String] -> Int -> (String -> IO ()) -> IO ()
+startCpu a r cb = do
+  cref <- newIORef []
+  _ <- parseCpu cref
+  runM a cpuConfig (runCpu cref) r cb
diff --git a/src/Xmobar/Plugins/Monitors/CpuFreq.hs b/src/Xmobar/Plugins/Monitors/CpuFreq.hs
new file mode 100644
index 0000000..1afedfa
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/CpuFreq.hs
@@ -0,0 +1,44 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.CpuFreq
+-- Copyright   :  (c) Juraj Hercek
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Juraj Hercek <juhe_haskell@hck.sk>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A cpu frequency monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.CpuFreq where
+
+import Xmobar.Plugins.Monitors.Common
+import Xmobar.Plugins.Monitors.CoreCommon
+
+-- |
+-- Cpu frequency default configuration. Default template contains only
+-- one core frequency, user should specify custom template in order to
+-- get more cpu frequencies.
+cpuFreqConfig :: IO MConfig
+cpuFreqConfig =
+  mkMConfig "Freq: <cpu0>" (map ((++) "cpu" . show) [0 :: Int ..])
+
+
+-- |
+-- Function retrieves monitor string holding the cpu frequency (or
+-- frequencies)
+runCpuFreq :: [String] -> Monitor String
+runCpuFreq _ = do
+  suffix <- getConfigValue useSuffix
+  ddigits <- getConfigValue decDigits
+  let path = ["/sys/devices/system/cpu/cpu", "/cpufreq/scaling_cur_freq"]
+      divisor = 1e6 :: Double
+      fmt x | x < 1 = if suffix then mhzFmt x ++ "MHz"
+                                else ghzFmt x
+            | otherwise = ghzFmt x ++ if suffix then "GHz" else ""
+      mhzFmt x = show (round (x * 1000) :: Integer)
+      ghzFmt = showDigits ddigits
+  failureMessage <- getConfigValue naString
+  checkedDataRetrieval failureMessage [path] Nothing (/divisor) fmt
diff --git a/src/Xmobar/Plugins/Monitors/Disk.hs b/src/Xmobar/Plugins/Monitors/Disk.hs
new file mode 100644
index 0000000..3f89629
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Disk.hs
@@ -0,0 +1,241 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Disk
+-- Copyright   :  (c) 2010, 2011, 2012, 2014, 2018 Jose A Ortega Ruiz
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+--  Disk usage and throughput monitors for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Disk (diskUConfig, runDiskU, startDiskIO) where
+
+import Xmobar.Plugins.Monitors.Common
+import Xmobar.System.StatFS
+
+import Data.IORef (IORef, newIORef, readIORef, writeIORef)
+
+import Control.Exception (SomeException, handle)
+import Control.Monad (zipWithM)
+import qualified Data.ByteString.Lazy.Char8 as B
+import Data.List (isPrefixOf, find)
+import Data.Maybe (catMaybes)
+import System.Directory (canonicalizePath, doesFileExist)
+import System.Console.GetOpt
+
+data DiskIOOpts = DiskIOOpts
+  { totalIconPattern :: Maybe IconPattern
+  , writeIconPattern :: Maybe IconPattern
+  , readIconPattern :: Maybe IconPattern
+  }
+
+parseDiskIOOpts :: [String] -> IO DiskIOOpts
+parseDiskIOOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+ where defaultOpts = DiskIOOpts
+          { totalIconPattern = Nothing
+          , writeIconPattern = Nothing
+          , readIconPattern = Nothing
+          }
+       options =
+          [ Option "" ["total-icon-pattern"] (ReqArg (\x o ->
+             o { totalIconPattern = Just $ parseIconPattern x}) "") ""
+          , Option "" ["write-icon-pattern"] (ReqArg (\x o ->
+             o { writeIconPattern = Just $ parseIconPattern x}) "") ""
+          , Option "" ["read-icon-pattern"] (ReqArg (\x o ->
+             o { readIconPattern = Just $ parseIconPattern x}) "") ""
+          ]
+
+diskIOConfig :: IO MConfig
+diskIOConfig = mkMConfig "" ["total", "read", "write"
+                            ,"totalbar", "readbar", "writebar"
+                            ,"totalvbar", "readvbar", "writevbar"
+                            ,"totalipat", "readipat", "writeipat"
+                            ]
+
+data DiskUOpts = DiskUOpts
+  { freeIconPattern :: Maybe IconPattern
+  , usedIconPattern :: Maybe IconPattern
+  }
+
+parseDiskUOpts :: [String] -> IO DiskUOpts
+parseDiskUOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+ where defaultOpts = DiskUOpts
+          { freeIconPattern = Nothing
+          , usedIconPattern = Nothing
+          }
+       options =
+          [ Option "" ["free-icon-pattern"] (ReqArg (\x o ->
+             o { freeIconPattern = Just $ parseIconPattern x}) "") ""
+          , Option "" ["used-icon-pattern"] (ReqArg (\x o ->
+             o { usedIconPattern = Just $ parseIconPattern x}) "") ""
+          ]
+
+diskUConfig :: IO MConfig
+diskUConfig = mkMConfig ""
+              [ "size", "free", "used", "freep", "usedp"
+              , "freebar", "freevbar", "freeipat"
+              , "usedbar", "usedvbar", "usedipat"
+              ]
+
+type DevName = String
+type Path = String
+type DevDataRef = IORef [(DevName, [Float])]
+
+mountedDevices :: [String] -> IO [(DevName, Path)]
+mountedDevices req = do
+  s <- B.readFile "/etc/mtab"
+  parse `fmap` mapM mbcanon (devs s)
+  where
+    mbcanon (d, p) = doesFileExist d >>= \e ->
+                     if e
+                        then Just `fmap` canon (d,p)
+                        else return Nothing
+    canon (d, p) = do {d' <- canonicalizePath d; return (d', p)}
+    devs = filter isDev . map (firstTwo . B.words) . B.lines
+    parse = map undev . filter isReq . catMaybes
+    firstTwo (a:b:_) = (B.unpack a, B.unpack b)
+    firstTwo _ = ("", "")
+    isDev (d, _) = "/dev/" `isPrefixOf` d
+    isReq (d, p) = p `elem` req || drop 5 d `elem` req
+    undev (d, f) = (drop 5 d, f)
+
+diskDevices :: [String] -> IO [(DevName, Path)]
+diskDevices req = do
+  s <- B.readFile "/proc/diskstats"
+  parse `fmap` mapM canon (devs s)
+  where
+    canon (d, p) = do {d' <- canonicalizePath d; return (d', p)}
+    devs = map (third . B.words) . B.lines
+    parse = map undev . filter isReq
+    third (_:_:c:_) = ("/dev/" ++ B.unpack c, B.unpack c)
+    third _ = ("", "")
+    isReq (d, p) = p `elem` req || drop 5 d `elem` req
+    undev (d, f) = (drop 5 d, f)
+
+mountedOrDiskDevices :: [String] -> IO [(DevName, Path)]
+mountedOrDiskDevices req = do
+  mnt <- mountedDevices req
+  case mnt of
+       []    -> diskDevices req
+       other -> return other
+
+diskData :: IO [(DevName, [Float])]
+diskData = do
+  s <- B.readFile "/proc/diskstats"
+  let extract ws = (head ws, map read (tail ws))
+  return $ map (extract . map B.unpack . drop 2 . B.words) (B.lines s)
+
+mountedData :: DevDataRef -> [DevName] -> IO [(DevName, [Float])]
+mountedData dref devs = do
+  dt <- readIORef dref
+  dt' <- diskData
+  writeIORef dref dt'
+  return $ map (parseDev (zipWith diff dt' dt)) devs
+  where diff (dev, xs) (_, ys) = (dev, zipWith (-) xs ys)
+
+parseDev :: [(DevName, [Float])] -> DevName -> (DevName, [Float])
+parseDev dat dev =
+  case find ((==dev) . fst) dat of
+    Nothing -> (dev, [0, 0, 0])
+    Just (_, xs) ->
+      let rSp = speed (xs !! 2) (xs !! 3)
+          wSp = speed (xs !! 6) (xs !! 7)
+          sp =  speed (xs !! 2 + xs !! 6) (xs !! 3 + xs !! 7)
+          speed x t = if t == 0 then 0 else 500 * x / t
+          dat' = if length xs > 6 then [sp, rSp, wSp] else [0, 0, 0]
+      in (dev, dat')
+
+speedToStr :: Float -> String
+speedToStr = showWithUnits 2 1
+
+sizeToStr :: Integer -> String
+sizeToStr = showWithUnits 3 0 . fromIntegral
+
+findTempl :: DevName -> Path -> [(String, String)] -> String
+findTempl dev path disks =
+  case find devOrPath disks of
+    Just (_, t) -> t
+    Nothing -> ""
+  where devOrPath (d, _) = d == dev || d == path
+
+devTemplates :: [(String, String)]
+                -> [(DevName, Path)]
+                -> [(DevName, [Float])]
+                -> [(String, [Float])]
+devTemplates disks mounted dat =
+  map (\(d, p) -> (findTempl d p disks, findData d)) mounted
+  where findData dev = case find ((==dev) . fst) dat of
+                         Nothing -> [0, 0, 0]
+                         Just (_, xs) -> xs
+
+runDiskIO' :: DiskIOOpts -> (String, [Float]) -> Monitor String
+runDiskIO' opts (tmp, xs) = do
+  s <- mapM (showWithColors speedToStr) xs
+  b <- mapM (showLogBar 0.8) xs
+  vb <- mapM (showLogVBar 0.8) xs
+  ipat <- mapM (\(f,v) -> showLogIconPattern (f opts) 0.8 v)
+        $ zip [totalIconPattern, readIconPattern, writeIconPattern] xs
+  setConfigValue tmp template
+  parseTemplate $ s ++ b ++ vb ++ ipat
+
+runDiskIO :: DevDataRef -> [(String, String)] -> [String] -> Monitor String
+runDiskIO dref disks argv = do
+  opts <- io $ parseDiskIOOpts argv
+  dev <- io $ mountedOrDiskDevices (map fst disks)
+  dat <- io $ mountedData dref (map fst dev)
+  strs <- mapM (runDiskIO' opts) $ devTemplates disks dev dat
+  return $ unwords strs
+
+startDiskIO :: [(String, String)] ->
+               [String] -> Int -> (String -> IO ()) -> IO ()
+startDiskIO disks args rate cb = do
+  dev <- mountedOrDiskDevices (map fst disks)
+  dref <- newIORef (map (\d -> (fst d, repeat 0)) dev)
+  _ <- mountedData dref (map fst dev)
+  runM args diskIOConfig (runDiskIO dref disks) rate cb
+
+fsStats :: String -> IO [Integer]
+fsStats path = do
+  stats <- getFileSystemStats path
+  case stats of
+    Nothing -> return [0, 0, 0]
+    Just f -> let tot = fsStatByteCount f
+                  free = fsStatBytesAvailable f
+                  used = fsStatBytesUsed f
+              in return [tot, free, used]
+
+runDiskU' :: DiskUOpts -> String -> String -> Monitor String
+runDiskU' opts tmp path = do
+  setConfigValue tmp template
+  [total, free, diff] <-  io (handle ign $ fsStats path)
+  let strs = map sizeToStr [free, diff]
+      freep = if total > 0 then free * 100 `div` total else 0
+      fr = fromIntegral freep / 100
+  s <- zipWithM showWithColors' strs [freep, 100 - freep]
+  sp <- showPercentsWithColors [fr, 1 - fr]
+  fb <- showPercentBar (fromIntegral freep) fr
+  fvb <- showVerticalBar (fromIntegral freep) fr
+  fipat <- showIconPattern (freeIconPattern opts) fr
+  ub <- showPercentBar (fromIntegral $ 100 - freep) (1 - fr)
+  uvb <- showVerticalBar (fromIntegral $ 100 - freep) (1 - fr)
+  uipat <- showIconPattern (usedIconPattern opts) (1 - fr)
+  parseTemplate $ [sizeToStr total] ++ s ++ sp ++ [fb,fvb,fipat,ub,uvb,uipat]
+  where ign = const (return [0, 0, 0]) :: SomeException -> IO [Integer]
+
+
+runDiskU :: [(String, String)] -> [String] -> Monitor String
+runDiskU disks argv = do
+  devs <- io $ mountedDevices (map fst disks)
+  opts <- io $ parseDiskUOpts argv
+  strs <- mapM (\(d, p) -> runDiskU' opts (findTempl d p disks) p) devs
+  return $ unwords strs
diff --git a/src/Xmobar/Plugins/Monitors/MPD.hs b/src/Xmobar/Plugins/Monitors/MPD.hs
new file mode 100644
index 0000000..9525254
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/MPD.hs
@@ -0,0 +1,139 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.MPD
+-- Copyright   :  (c) Jose A Ortega Ruiz
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+--  MPD status and song
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.MPD ( mpdConfig, runMPD, mpdWait, mpdReady ) where
+
+import Data.List
+import Data.Maybe (fromMaybe)
+import Xmobar.Plugins.Monitors.Common
+import System.Console.GetOpt
+import qualified Network.MPD as M
+import Control.Concurrent (threadDelay)
+
+mpdConfig :: IO MConfig
+mpdConfig = mkMConfig "MPD: <state>"
+              [ "bar", "vbar", "ipat", "state", "statei", "volume", "length"
+              , "lapsed", "remaining", "plength", "ppos", "flags", "file"
+              , "name", "artist", "composer", "performer"
+              , "album", "title", "track", "genre", "date"
+              ]
+
+data MOpts = MOpts
+  { mPlaying :: String
+  , mStopped :: String
+  , mPaused :: String
+  , mLapsedIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: MOpts
+defaultOpts = MOpts
+  { mPlaying = ">>"
+  , mStopped = "><"
+  , mPaused = "||"
+  , mLapsedIconPattern = Nothing
+  }
+
+options :: [OptDescr (MOpts -> MOpts)]
+options =
+  [ Option "P" ["playing"] (ReqArg (\x o -> o { mPlaying = x }) "") ""
+  , Option "S" ["stopped"] (ReqArg (\x o -> o { mStopped = x }) "") ""
+  , Option "Z" ["paused"] (ReqArg (\x o -> o { mPaused = x }) "") ""
+  , Option "" ["lapsed-icon-pattern"] (ReqArg (\x o ->
+     o { mLapsedIconPattern = Just $ parseIconPattern x }) "") ""
+  ]
+
+runMPD :: [String] -> Monitor String
+runMPD args = do
+  opts <- io $ mopts args
+  status <- io $ M.withMPD M.status
+  song <- io $ M.withMPD M.currentSong
+  s <- parseMPD status song opts
+  parseTemplate s
+
+mpdWait :: IO ()
+mpdWait = do
+  status <- M.withMPD $ M.idle [M.PlayerS, M.MixerS, M.OptionsS]
+  case status of
+    Left _ -> threadDelay 10000000
+    _ -> return ()
+
+mpdReady :: [String] -> Monitor Bool
+mpdReady _ = do
+  response <- io $ M.withMPD M.ping
+  case response of
+    Right _         -> return True
+    -- Only cases where MPD isn't responding is an issue; bogus information at
+    -- least won't hold xmobar up.
+    Left M.NoMPD    -> return False
+    Left (M.ConnectionError _) -> return False
+    Left _          -> return True
+
+mopts :: [String] -> IO MOpts
+mopts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+parseMPD :: M.Response M.Status -> M.Response (Maybe M.Song) -> MOpts
+            -> Monitor [String]
+parseMPD (Left e) _ _ = return $ show e:replicate 19 ""
+parseMPD (Right st) song opts = do
+  songData <- parseSong song
+  bar <- showPercentBar (100 * b) b
+  vbar <- showVerticalBar (100 * b) b
+  ipat <- showIconPattern (mLapsedIconPattern opts) b
+  return $ [bar, vbar, ipat, ss, si, vol, len, lap, remain, plen, ppos, flags] ++ songData
+  where s = M.stState st
+        ss = show s
+        si = stateGlyph s opts
+        vol = int2str $ fromMaybe 0 (M.stVolume st)
+        (p, t) = fromMaybe (0, 0) (M.stTime st)
+        [lap, len, remain] = map showTime [floor p, t, max 0 (t - floor p)]
+        b = if t > 0 then realToFrac $ p / fromIntegral t else 0
+        plen = int2str $ M.stPlaylistLength st
+        ppos = maybe "" (int2str . (+1)) $ M.stSongPos st
+        flags = playbackMode st
+
+stateGlyph :: M.State -> MOpts -> String
+stateGlyph s o =
+  case s of
+    M.Playing -> mPlaying o
+    M.Paused -> mPaused o
+    M.Stopped -> mStopped o
+
+playbackMode :: M.Status -> String
+playbackMode s =
+  concat [if p s then f else "-" |
+          (p,f) <- [(M.stRepeat,"r"),
+                    (M.stRandom,"z"),
+                    (M.stSingle,"s"),
+                    (M.stConsume,"c")]]
+
+parseSong :: M.Response (Maybe M.Song) -> Monitor [String]
+parseSong (Left _) = return $ repeat ""
+parseSong (Right Nothing) = return $ repeat ""
+parseSong (Right (Just s)) =
+  let str sel = maybe "" (intercalate ", " . map M.toString) (M.sgGetTag sel s)
+      sels = [ M.Name, M.Artist, M.Composer, M.Performer
+             , M.Album, M.Title, M.Track, M.Genre, M.Date ]
+      fields = M.toString (M.sgFilePath s) : map str sels
+  in mapM showWithPadding fields
+
+showTime :: Integer -> String
+showTime t = int2str minutes ++ ":" ++ int2str seconds
+  where minutes = t `div` 60
+        seconds = t `mod` 60
+
+int2str :: (Show a, Num a, Ord a) => a -> String
+int2str x = if x < 10 then '0':sx else sx where sx = show x
diff --git a/src/Xmobar/Plugins/Monitors/Mem.hs b/src/Xmobar/Plugins/Monitors/Mem.hs
new file mode 100644
index 0000000..d69921b
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Mem.hs
@@ -0,0 +1,96 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Mem
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A memory monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Mem (memConfig, runMem, totalMem, usedMem) where
+
+import Xmobar.Plugins.Monitors.Common
+import qualified Data.Map as M
+import System.Console.GetOpt
+
+data MemOpts = MemOpts
+  { usedIconPattern :: Maybe IconPattern
+  , freeIconPattern :: Maybe IconPattern
+  , availableIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: MemOpts
+defaultOpts = MemOpts
+  { usedIconPattern = Nothing
+  , freeIconPattern = Nothing
+  , availableIconPattern = Nothing
+  }
+
+options :: [OptDescr (MemOpts -> MemOpts)]
+options =
+  [ Option "" ["used-icon-pattern"] (ReqArg (\x o ->
+     o { usedIconPattern = Just $ parseIconPattern x }) "") ""
+  , Option "" ["free-icon-pattern"] (ReqArg (\x o ->
+     o { freeIconPattern = Just $ parseIconPattern x }) "") ""
+  , Option "" ["available-icon-pattern"] (ReqArg (\x o ->
+     o { availableIconPattern = Just $ parseIconPattern x }) "") ""
+  ]
+
+parseOpts :: [String] -> IO MemOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+memConfig :: IO MConfig
+memConfig = mkMConfig
+       "Mem: <usedratio>% (<cache>M)" -- template
+       ["usedbar", "usedvbar", "usedipat", "freebar", "freevbar", "freeipat",
+        "availablebar", "availablevbar", "availableipat",
+        "usedratio", "freeratio", "availableratio",
+        "total", "free", "buffer", "cache", "available", "used"] -- available replacements
+
+fileMEM :: IO String
+fileMEM = readFile "/proc/meminfo"
+
+parseMEM :: IO [Float]
+parseMEM =
+    do file <- fileMEM
+       let content = map words $ take 8 $ lines file
+           info = M.fromList $ map (\line -> (head line, (read $ line !! 1 :: Float) / 1024)) content
+           [total, free, buffer, cache] = map (info M.!) ["MemTotal:", "MemFree:", "Buffers:", "Cached:"]
+           available = M.findWithDefault (free + buffer + cache) "MemAvailable:" info
+           used = total - available
+           usedratio = used / total
+           freeratio = free / total
+           availableratio = available / total
+       return [usedratio, freeratio, availableratio, total, free, buffer, cache, available, used]
+
+totalMem :: IO Float
+totalMem = fmap ((*1024) . (!!1)) parseMEM
+
+usedMem :: IO Float
+usedMem = fmap ((*1024) . (!!6)) parseMEM
+
+formatMem :: MemOpts -> [Float] -> Monitor [String]
+formatMem opts (r:fr:ar:xs) =
+    do let f = showDigits 0
+           mon i x = [showPercentBar (100 * x) x, showVerticalBar (100 * x) x, showIconPattern i x]
+       sequence $ mon (usedIconPattern opts) r
+           ++ mon (freeIconPattern opts) fr
+           ++ mon (availableIconPattern opts) ar
+           ++ map showPercentWithColors [r, fr, ar]
+           ++ map (showWithColors f) xs
+formatMem _ _ = replicate 10 `fmap` getConfigValue naString
+
+runMem :: [String] -> Monitor String
+runMem argv =
+    do m <- io parseMEM
+       opts <- io $ parseOpts argv
+       l <- formatMem opts m
+       parseTemplate l
diff --git a/src/Xmobar/Plugins/Monitors/Mpris.hs b/src/Xmobar/Plugins/Monitors/Mpris.hs
new file mode 100644
index 0000000..3556649
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Mpris.hs
@@ -0,0 +1,148 @@
+{-# LANGUAGE OverloadedStrings #-}
+
+----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Mpris
+-- Copyright   :  (c) Artem Tarasov
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Artem Tarasov <lomereiter@gmail.com>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+--   MPRIS song info
+--
+----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Mpris ( mprisConfig, runMPRIS1, runMPRIS2 ) where
+
+-- TODO: listen to signals
+
+import Xmobar.Plugins.Monitors.Common
+
+import Text.Printf (printf)
+
+import DBus
+import qualified DBus.Client as DC
+
+import Control.Arrow ((***))
+import Data.Maybe ( fromJust )
+import Data.Int ( Int32, Int64 )
+import System.IO.Unsafe (unsafePerformIO)
+
+import Control.Exception (try)
+
+class MprisVersion a where
+    getMethodCall :: a -> String -> MethodCall
+    getMetadataReply :: a -> DC.Client -> String -> IO [Variant]
+    getMetadataReply mv c p = fmap methodReturnBody (DC.call_ c $ getMethodCall mv p)
+    fieldsList :: a -> [String]
+
+data MprisVersion1 = MprisVersion1
+instance MprisVersion MprisVersion1 where
+    getMethodCall MprisVersion1 p = (methodCall objectPath interfaceName memberName)
+        { methodCallDestination = Just busName
+        }
+        where
+        busName       = busName_     $ "org.mpris." ++ p
+        objectPath    = objectPath_    "/Player"
+        interfaceName = interfaceName_ "org.freedesktop.MediaPlayer"
+        memberName    = memberName_    "GetMetadata"
+
+    fieldsList MprisVersion1 = [ "album", "artist", "arturl", "mtime", "title"
+                               , "tracknumber" ]
+
+data MprisVersion2 = MprisVersion2
+instance MprisVersion MprisVersion2 where
+    getMethodCall MprisVersion2 p = (methodCall objectPath interfaceName memberName)
+        { methodCallDestination = Just busName
+        , methodCallBody = arguments
+        }
+        where
+        busName       = busName_     $ "org.mpris.MediaPlayer2." ++ p
+        objectPath    = objectPath_    "/org/mpris/MediaPlayer2"
+        interfaceName = interfaceName_ "org.freedesktop.DBus.Properties"
+        memberName    = memberName_    "Get"
+        arguments     = map (toVariant::String -> Variant)
+                            ["org.mpris.MediaPlayer2.Player", "Metadata"]
+
+    fieldsList MprisVersion2 = [ "xesam:album", "xesam:artist", "mpris:artUrl"
+                               , "mpris:length", "xesam:title",
+                                 "xesam:trackNumber", "xesam:composer",
+                                 "xesam:genre"
+                               ]
+
+mprisConfig :: IO MConfig
+mprisConfig = mkMConfig "<artist> - <title>"
+                [ "album", "artist", "arturl", "length"
+                , "title", "tracknumber" , "composer", "genre"
+                ]
+
+{-# NOINLINE dbusClient #-}
+dbusClient :: DC.Client
+dbusClient = unsafePerformIO DC.connectSession
+
+runMPRIS :: (MprisVersion a) => a -> String -> [String] -> Monitor String
+runMPRIS version playerName _ = do
+    metadata <- io $ getMetadata version dbusClient playerName
+    if [] == metadata then
+      getConfigValue naString
+      else mapM showWithPadding (makeList version metadata) >>= parseTemplate
+
+runMPRIS1 :: String -> [String] -> Monitor String
+runMPRIS1 = runMPRIS MprisVersion1
+
+runMPRIS2 :: String -> [String] -> Monitor String
+runMPRIS2 = runMPRIS MprisVersion2
+
+---------------------------------------------------------------------------
+
+fromVar :: (IsVariant a) => Variant -> a
+fromVar = fromJust . fromVariant
+
+unpackMetadata :: [Variant] -> [(String, Variant)]
+unpackMetadata [] = []
+unpackMetadata xs =
+  (map (fromVar *** fromVar) . unpack . head) xs where
+    unpack v = case variantType v of
+                 TypeDictionary _ _ -> dictionaryItems $ fromVar v
+                 TypeVariant -> unpack $ fromVar v
+                 TypeStructure _ ->
+                   let x = structureItems (fromVar v) in
+                     if null x then [] else unpack (head x)
+                 _ -> []
+
+getMetadata :: (MprisVersion a) => a -> DC.Client -> String -> IO [(String, Variant)]
+getMetadata version client player = do
+    reply <- try (getMetadataReply version client player) ::
+                            IO (Either DC.ClientError [Variant])
+    return $ case reply of
+                  Right metadata -> unpackMetadata metadata;
+                  Left _ -> []
+
+makeList :: (MprisVersion a) => a -> [(String, Variant)] -> [String]
+makeList version md = map getStr (fieldsList version) where
+            formatTime n = (if hh == 0 then printf "%02d:%02d"
+                                       else printf "%d:%02d:%02d" hh) mm ss
+                           where hh = (n `div` 60) `div` 60
+                                 mm = (n `div` 60) `mod` 60
+                                 ss = n `mod` 60
+            getStr str = case lookup str md of
+                Nothing -> ""
+                Just v -> case variantType v of
+                            TypeString -> fromVar v
+                            TypeInt32 -> let num = fromVar v in
+                                          case str of
+                                           "mtime" -> formatTime (num `div` 1000)
+                                           "tracknumber" -> printf "%02d" num
+                                           "mpris:length" -> formatTime (num `div` 1000000)
+                                           "xesam:trackNumber" -> printf "%02d" num
+                                           _ -> (show::Int32 -> String) num
+                            TypeInt64 -> let num = fromVar v in
+                                          case str of
+                                           "mpris:length" -> formatTime (num `div` 1000000)
+                                           _ -> (show::Int64 -> String) num
+                            TypeArray TypeString ->
+                              let x = arrayItems (fromVar v) in
+                                if null x then "" else fromVar (head x)
+                            _ -> ""
diff --git a/src/Xmobar/Plugins/Monitors/MultiCpu.hs b/src/Xmobar/Plugins/Monitors/MultiCpu.hs
new file mode 100644
index 0000000..3db3b5f
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/MultiCpu.hs
@@ -0,0 +1,128 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.MultiCpu
+-- Copyright   :  (c) Jose A Ortega Ruiz
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A Ortega <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A multi-cpu monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.MultiCpu (startMultiCpu) where
+
+import Xmobar.Plugins.Monitors.Common
+import Control.Applicative ((<$>))
+import qualified Data.ByteString.Lazy.Char8 as B
+import Data.List (isPrefixOf, transpose, unfoldr)
+import Data.IORef (IORef, newIORef, readIORef, writeIORef)
+import System.Console.GetOpt
+
+data MultiCpuOpts = MultiCpuOpts
+  { loadIconPatterns :: [IconPattern]
+  , loadIconPattern :: Maybe IconPattern
+  , fallbackIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: MultiCpuOpts
+defaultOpts = MultiCpuOpts
+  { loadIconPatterns = []
+  , loadIconPattern = Nothing
+  , fallbackIconPattern = Nothing
+  }
+
+options :: [OptDescr (MultiCpuOpts -> MultiCpuOpts)]
+options =
+  [ Option "" ["load-icon-pattern"] (ReqArg (\x o ->
+     o { loadIconPattern = Just $ parseIconPattern x }) "") ""
+  , Option "" ["load-icon-patterns"] (ReqArg (\x o ->
+     o { loadIconPatterns = parseIconPattern x : loadIconPatterns o }) "") ""
+  , Option "" ["fallback-icon-pattern"] (ReqArg (\x o ->
+     o { fallbackIconPattern = Just $ parseIconPattern x }) "") ""
+  ]
+
+parseOpts :: [String] -> IO MultiCpuOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+variables :: [String]
+variables = ["bar", "vbar","ipat","total","user","nice","system","idle"]
+vNum :: Int
+vNum = length variables
+
+multiCpuConfig :: IO MConfig
+multiCpuConfig =
+  mkMConfig "Cpu: <total>%" $
+            ["auto" ++ k | k <- variables] ++
+            [ k ++ n     | n <- "" : map show [0 :: Int ..]
+                         , k <- variables]
+
+type CpuDataRef = IORef [[Int]]
+
+cpuData :: IO [[Int]]
+cpuData = parse `fmap` B.readFile "/proc/stat"
+  where parse = map parseList . cpuLists
+        cpuLists = takeWhile isCpu . map B.words . B.lines
+        isCpu (w:_) = "cpu" `isPrefixOf` B.unpack w
+        isCpu _ = False
+        parseList = map (parseInt . B.unpack) . tail
+
+parseCpuData :: CpuDataRef -> IO [[Float]]
+parseCpuData cref =
+  do as <- readIORef cref
+     bs <- cpuData
+     writeIORef cref bs
+     let p0 = zipWith percent bs as
+     return p0
+
+percent :: [Int] -> [Int] -> [Float]
+percent b a = if tot > 0 then map (/ tot) $ take 4 dif else [0, 0, 0, 0]
+  where dif = map fromIntegral $ zipWith (-) b a
+        tot = sum dif
+
+formatMultiCpus :: MultiCpuOpts -> [[Float]] -> Monitor [String]
+formatMultiCpus _ [] = return []
+formatMultiCpus opts xs = concat <$> mapM (\(i, x) -> formatCpu opts i x) (zip [0..] xs)
+
+formatCpu :: MultiCpuOpts -> Int -> [Float] -> Monitor [String]
+formatCpu opts i xs
+  | length xs < 4 = showPercentsWithColors $ replicate vNum 0.0
+  | otherwise = let t = sum $ take 3 xs
+                in do b <- showPercentBar (100 * t) t
+                      h <- showVerticalBar (100 * t) t
+                      d <- showIconPattern tryString t
+                      ps <- showPercentsWithColors (t:xs)
+                      return (b:h:d:ps)
+  where tryString
+          | i == 0 = loadIconPattern opts
+          | i <= length (loadIconPatterns opts) = Just $ loadIconPatterns opts !! (i - 1)
+          | otherwise = fallbackIconPattern opts
+
+splitEvery :: Int -> [a] -> [[a]]
+splitEvery n = unfoldr (\x -> if null x then Nothing else Just $ splitAt n x)
+
+groupData :: [String] -> [[String]]
+groupData = transpose . tail . splitEvery vNum
+
+formatAutoCpus :: [String] -> Monitor [String]
+formatAutoCpus [] = return $ replicate vNum ""
+formatAutoCpus xs = return $ map unwords (groupData xs)
+
+runMultiCpu :: CpuDataRef -> [String] -> Monitor String
+runMultiCpu cref argv =
+  do c <- io $ parseCpuData cref
+     opts <- io $ parseOpts argv
+     l <- formatMultiCpus opts c
+     a <- formatAutoCpus l
+     parseTemplate $ a ++ l
+
+startMultiCpu :: [String] -> Int -> (String -> IO ()) -> IO ()
+startMultiCpu a r cb = do
+  cref <- newIORef [[]]
+  _ <- parseCpuData cref
+  runM a multiCpuConfig (runMultiCpu cref) r cb
diff --git a/src/Xmobar/Plugins/Monitors/Net.hs b/src/Xmobar/Plugins/Monitors/Net.hs
new file mode 100644
index 0000000..81a5f6b
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Net.hs
@@ -0,0 +1,218 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Net
+-- Copyright   :  (c) 2011, 2012, 2013, 2014, 2017 Jose Antonio Ortega Ruiz
+--                (c) 2007-2010 Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A net device monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Net (
+                        startNet
+                      , startDynNet
+                      ) where
+
+import Xmobar.Plugins.Monitors.Common
+
+import Data.Word (Word64)
+import Data.IORef (IORef, newIORef, readIORef, writeIORef)
+import Data.Time.Clock (UTCTime, getCurrentTime, diffUTCTime)
+import Control.Monad (forM, filterM)
+import System.Directory (getDirectoryContents, doesFileExist)
+import System.FilePath ((</>))
+import System.Console.GetOpt
+import System.IO.Error (catchIOError)
+
+import qualified Data.ByteString.Lazy.Char8 as B
+
+data NetOpts = NetOpts
+  { rxIconPattern :: Maybe IconPattern
+  , txIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: NetOpts
+defaultOpts = NetOpts
+  { rxIconPattern = Nothing
+  , txIconPattern = Nothing
+  }
+
+options :: [OptDescr (NetOpts -> NetOpts)]
+options =
+  [ Option "" ["rx-icon-pattern"] (ReqArg (\x o ->
+     o { rxIconPattern = Just $ parseIconPattern x }) "") ""
+  , Option "" ["tx-icon-pattern"] (ReqArg (\x o ->
+     o { txIconPattern = Just $ parseIconPattern x }) "") ""
+  ]
+
+parseOpts :: [String] -> IO NetOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+    (o, _, []) -> return $ foldr id defaultOpts o
+    (_, _, errs) -> ioError . userError $ concat errs
+
+data UnitPerSec = Bs | KBs | MBs | GBs deriving (Eq,Enum,Ord)
+data NetValue = NetValue Float UnitPerSec deriving (Eq,Show)
+
+instance Show UnitPerSec where
+    show Bs  = "B/s"
+    show KBs = "KB/s"
+    show MBs = "MB/s"
+    show GBs = "GB/s"
+
+data NetDev num
+    = NA
+    | NI String
+    | ND String num num deriving (Eq,Show,Read)
+
+type NetDevRawTotal = NetDev Word64
+type NetDevRate = NetDev Float
+
+type NetDevRef = IORef (NetDevRawTotal, UTCTime)
+
+-- The more information available, the better.
+-- Note that names don't matter. Therefore, if only the names differ,
+-- a compare evaluates to EQ while (==) evaluates to False.
+instance Ord num => Ord (NetDev num) where
+    compare NA NA              = EQ
+    compare NA _               = LT
+    compare _  NA              = GT
+    compare (NI _) (NI _)      = EQ
+    compare (NI _) ND {}       = LT
+    compare ND {} (NI _)     = GT
+    compare (ND _ x1 y1) (ND _ x2 y2) =
+        if downcmp /= EQ
+           then downcmp
+           else y1 `compare` y2
+      where downcmp = x1 `compare` x2
+
+netConfig :: IO MConfig
+netConfig = mkMConfig
+    "<dev>: <rx>KB|<tx>KB"      -- template
+    ["dev", "rx", "tx", "rxbar", "rxvbar", "rxipat", "txbar", "txvbar", "txipat"]     -- available replacements
+
+operstateDir :: String -> FilePath
+operstateDir d = "/sys/class/net" </> d </> "operstate"
+
+existingDevs :: IO [String]
+existingDevs = getDirectoryContents "/sys/class/net" >>= filterM isDev
+  where isDev d | d `elem` excludes = return False
+                | otherwise = doesFileExist (operstateDir d)
+        excludes = [".", "..", "lo"]
+
+isUp :: String -> IO Bool
+isUp d = flip catchIOError (const $ return False) $ do
+  operstate <- B.readFile (operstateDir d)
+  return $! (B.unpack . head . B.lines) operstate `elem`  ["up", "unknown"]
+
+readNetDev :: [String] -> IO NetDevRawTotal
+readNetDev (d:x:y:_) = do
+  up <- isUp d
+  return (if up then ND d (r x) (r y) else NI d)
+    where r s | s == "" = 0
+              | otherwise = read s
+
+readNetDev _ = return NA
+
+netParser :: B.ByteString -> IO [NetDevRawTotal]
+netParser = mapM (readNetDev . splitDevLine) . readDevLines
+  where readDevLines = drop 2 . B.lines
+        splitDevLine = selectCols . wordsBy (`elem` " :") . B.unpack
+        selectCols cols = map (cols!!) [0,1,9]
+        wordsBy f s = case dropWhile f s of
+          [] -> []
+          s' -> w : wordsBy f s'' where (w, s'') = break f s'
+
+findNetDev :: String -> IO NetDevRawTotal
+findNetDev dev = do
+  nds <- B.readFile "/proc/net/dev" >>= netParser
+  case filter isDev nds of
+    x:_ -> return x
+    _ -> return NA
+  where isDev (ND d _ _) = d == dev
+        isDev (NI d) = d == dev
+        isDev NA = False
+
+formatNet :: Maybe IconPattern -> Float -> Monitor (String, String, String, String)
+formatNet mipat d = do
+    s <- getConfigValue useSuffix
+    dd <- getConfigValue decDigits
+    let str True v = showDigits dd d' ++ show u
+            where (NetValue d' u) = byteNetVal v
+        str False v = showDigits dd $ v / 1024
+    b <- showLogBar 0.9 d
+    vb <- showLogVBar 0.9 d
+    ipat <- showLogIconPattern mipat 0.9 d
+    x <- showWithColors (str s) d
+    return (x, b, vb, ipat)
+
+printNet :: NetOpts -> NetDevRate -> Monitor String
+printNet opts nd =
+  case nd of
+    ND d r t -> do
+        (rx, rb, rvb, ripat) <- formatNet (rxIconPattern opts) r
+        (tx, tb, tvb, tipat) <- formatNet (txIconPattern opts) t
+        parseTemplate [d,rx,tx,rb,rvb,ripat,tb,tvb,tipat]
+    NI _ -> return ""
+    NA -> getConfigValue naString
+
+parseNet :: NetDevRef -> String -> IO NetDevRate
+parseNet nref nd = do
+  (n0, t0) <- readIORef nref
+  n1 <- findNetDev nd
+  t1 <- getCurrentTime
+  writeIORef nref (n1, t1)
+  let scx = realToFrac (diffUTCTime t1 t0)
+      scx' = if scx > 0 then scx else 1
+      rate da db = takeDigits 2 $ fromIntegral (db - da) / scx'
+      diffRate (ND d ra ta) (ND _ rb tb) = ND d (rate ra rb) (rate ta tb)
+      diffRate (NI d) _ = NI d
+      diffRate _ (NI d) = NI d
+      diffRate _ _ = NA
+  return $ diffRate n0 n1
+
+runNet :: NetDevRef -> String -> [String] -> Monitor String
+runNet nref i argv = do
+  dev <- io $ parseNet nref i
+  opts <- io $ parseOpts argv
+  printNet opts dev
+
+parseNets :: [(NetDevRef, String)] -> IO [NetDevRate]
+parseNets = mapM $ uncurry parseNet
+
+runNets :: [(NetDevRef, String)] -> [String] -> Monitor String
+runNets refs argv = do
+  dev <- io $ parseActive refs
+  opts <- io $ parseOpts argv
+  printNet opts dev
+    where parseActive refs' = fmap selectActive (parseNets refs')
+          selectActive = maximum
+
+startNet :: String -> [String] -> Int -> (String -> IO ()) -> IO ()
+startNet i a r cb = do
+  t0 <- getCurrentTime
+  nref <- newIORef (NA, t0)
+  _ <- parseNet nref i
+  runM a netConfig (runNet nref i) r cb
+
+startDynNet :: [String] -> Int -> (String -> IO ()) -> IO ()
+startDynNet a r cb = do
+  devs <- existingDevs
+  refs <- forM devs $ \d -> do
+            t <- getCurrentTime
+            nref <- newIORef (NA, t)
+            _ <- parseNet nref d
+            return (nref, d)
+  runM a netConfig (runNets refs) r cb
+
+byteNetVal :: Float -> NetValue
+byteNetVal v
+    | v < 1024**1 = NetValue v Bs
+    | v < 1024**2 = NetValue (v/1024**1) KBs
+    | v < 1024**3 = NetValue (v/1024**2) MBs
+    | otherwise   = NetValue (v/1024**3) GBs
diff --git a/src/Xmobar/Plugins/Monitors/Swap.hs b/src/Xmobar/Plugins/Monitors/Swap.hs
new file mode 100644
index 0000000..fcaab84
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Swap.hs
@@ -0,0 +1,56 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Swap
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A  swap usage monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Swap where
+
+import Xmobar.Plugins.Monitors.Common
+
+import qualified Data.ByteString.Lazy.Char8 as B
+
+swapConfig :: IO MConfig
+swapConfig = mkMConfig
+        "Swap: <usedratio>%"                    -- template
+        ["usedratio", "total", "used", "free"] -- available replacements
+
+fileMEM :: IO B.ByteString
+fileMEM = B.readFile "/proc/meminfo"
+
+parseMEM :: IO [Float]
+parseMEM =
+    do file <- fileMEM
+       let li i l
+               | l /= [] = head l !! i
+               | otherwise = B.empty
+           fs s l
+               | null l    = False
+               | otherwise = head l == B.pack s
+           get_data s = flip (/) 1024 . read . B.unpack . li 1 . filter (fs s)
+           st   = map B.words . B.lines $ file
+           tot  = get_data "SwapTotal:" st
+           free = get_data "SwapFree:" st
+       return [(tot - free) / tot, tot, tot - free, free]
+
+formatSwap :: [Float] -> Monitor [String]
+formatSwap (r:xs) = do
+  d <- getConfigValue decDigits
+  other <- mapM (showWithColors (showDigits d)) xs
+  ratio <- showPercentWithColors r
+  return $ ratio:other
+formatSwap _ = return $ replicate 4 "N/A"
+
+runSwap :: [String] -> Monitor String
+runSwap _ =
+    do m <- io parseMEM
+       l <- formatSwap m
+       parseTemplate l
diff --git a/src/Xmobar/Plugins/Monitors/Thermal.hs b/src/Xmobar/Plugins/Monitors/Thermal.hs
new file mode 100644
index 0000000..320ae17
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Thermal.hs
@@ -0,0 +1,39 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Thermal
+-- Copyright   :  (c) Juraj Hercek
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Juraj Hercek <juhe_haskell@hck.sk>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A thermal monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Thermal where
+
+import qualified Data.ByteString.Lazy.Char8 as B
+import Xmobar.Plugins.Monitors.Common
+import System.Posix.Files (fileExist)
+
+-- | Default thermal configuration.
+thermalConfig :: IO MConfig
+thermalConfig = mkMConfig
+       "Thm: <temp>C" -- template
+       ["temp"]       -- available replacements
+
+-- | Retrieves thermal information. Argument is name of thermal directory in
+-- \/proc\/acpi\/thermal_zone. Returns the monitor string parsed according to
+-- template (either default or user specified).
+runThermal :: [String] -> Monitor String
+runThermal args = do
+    let zone = head args
+        file = "/proc/acpi/thermal_zone/" ++ zone ++ "/temperature"
+    exists <- io $ fileExist file
+    if exists
+        then do number <- io $ fmap ((read :: String -> Int) . stringParser (1, 0)) (B.readFile file)
+                thermal <- showWithColors show number
+                parseTemplate [  thermal ]
+        else return $ "Thermal (" ++ zone ++ "): N/A"
diff --git a/src/Xmobar/Plugins/Monitors/ThermalZone.hs b/src/Xmobar/Plugins/Monitors/ThermalZone.hs
new file mode 100644
index 0000000..bc46b59
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/ThermalZone.hs
@@ -0,0 +1,49 @@
+------------------------------------------------------------------------------
+-- |
+-- Module       :  Plugins.Monitors.ThermalZone
+-- Copyright    :  (c) 2011, 2013 Jose Antonio Ortega Ruiz
+-- License      :  BSD3-style (see LICENSE)
+--
+-- Maintainer   :  jao@gnu.org
+-- Stability    :  unstable
+-- Portability  :  portable
+-- Created      :  Fri Feb 25, 2011 03:18
+--
+--
+-- A thermal zone plugin based on the sysfs linux interface.
+-- See http://kernel.org/doc/Documentation/thermal/sysfs-api.txt
+--
+------------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.ThermalZone (thermalZoneConfig, runThermalZone) where
+
+import Xmobar.Plugins.Monitors.Common
+
+import System.Posix.Files (fileExist)
+import Control.Exception (IOException, catch)
+import qualified Data.ByteString.Char8 as B
+
+-- | Default thermal configuration.
+thermalZoneConfig :: IO MConfig
+thermalZoneConfig = mkMConfig "<temp>C" ["temp"]
+
+-- | Retrieves thermal information. Argument is name of thermal
+-- directory in \/sys\/clas\/thermal. Returns the monitor string
+-- parsed according to template (either default or user specified).
+runThermalZone :: [String] -> Monitor String
+runThermalZone args = do
+    let zone = head args
+        file = "/sys/class/thermal/thermal_zone" ++ zone ++ "/temp"
+        handleIOError :: IOException -> IO (Maybe B.ByteString)
+        handleIOError _ = return Nothing
+        parse = return . (read :: String -> Int) . B.unpack
+    exists <- io $ fileExist file
+    if exists
+      then do contents <- io $ catch (fmap Just $ B.readFile file) handleIOError
+              case contents of
+                Just d -> do
+                  mdegrees <- parse d
+                  temp <- showWithColors show (mdegrees `quot` 1000)
+                  parseTemplate [ temp ]
+                Nothing -> getConfigValue naString
+      else getConfigValue naString
diff --git a/src/Xmobar/Plugins/Monitors/Top.hs b/src/Xmobar/Plugins/Monitors/Top.hs
new file mode 100644
index 0000000..d6df249
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Top.hs
@@ -0,0 +1,195 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Top
+-- Copyright   :  (c) 2010, 2011, 2012, 2013, 2014, 2018 Jose A Ortega Ruiz
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+--  Process activity and memory consumption monitors
+--
+-----------------------------------------------------------------------------
+
+{-# LANGUAGE ForeignFunctionInterface #-}
+{-# LANGUAGE BangPatterns #-}
+
+module Xmobar.Plugins.Monitors.Top (startTop, topMemConfig, runTopMem) where
+
+import Xmobar.Plugins.Monitors.Common
+
+import Control.Exception (SomeException, handle)
+import Data.IORef (IORef, newIORef, readIORef, writeIORef)
+import Data.List (sortBy, foldl')
+import Data.Ord (comparing)
+import Data.Time.Clock (UTCTime, getCurrentTime, diffUTCTime)
+import System.Directory (getDirectoryContents)
+import System.FilePath ((</>))
+import System.IO (IOMode(ReadMode), hGetLine, withFile)
+import System.Posix.Unistd (SysVar(ClockTick), getSysVar)
+
+import Foreign.C.Types
+
+maxEntries :: Int
+maxEntries = 10
+
+intStrs :: [String]
+intStrs = map show [1..maxEntries]
+
+topMemConfig :: IO MConfig
+topMemConfig = mkMConfig "<both1>"
+                 [ k ++ n | n <- intStrs , k <- ["name", "mem", "both"]]
+
+topConfig :: IO MConfig
+topConfig = mkMConfig "<both1>"
+              ("no" : [ k ++ n | n <- intStrs
+                               , k <- [ "name", "cpu", "both"
+                                      , "mname", "mem", "mboth"]])
+
+foreign import ccall "unistd.h getpagesize"
+  c_getpagesize :: CInt
+
+pageSize :: Float
+pageSize = fromIntegral c_getpagesize / 1024
+
+processes :: IO [FilePath]
+processes = fmap (filter isPid) (getDirectoryContents "/proc")
+  where isPid = (`elem` ['0'..'9']) . head
+
+statWords :: [String] -> [String]
+statWords line@(x:pn:ppn:xs) =
+  if last pn == ')' then line else statWords (x:(pn ++ " " ++ ppn):xs)
+statWords _ = replicate 52 "0"
+
+getProcessData :: FilePath -> IO [String]
+getProcessData pidf =
+  handle ign $ withFile ("/proc" </> pidf </> "stat") ReadMode readWords
+  where readWords = fmap (statWords . words) . hGetLine
+        ign = const (return []) :: SomeException -> IO [String]
+
+memPages :: [String] -> String
+memPages fs = fs!!23
+
+ppid :: [String] -> String
+ppid fs = fs!!3
+
+skip :: [String] -> Bool
+skip fs = length fs < 24 || memPages fs == "0" || ppid fs == "0"
+
+handleProcesses :: ([String] -> a) -> IO [a]
+handleProcesses f =
+  fmap (foldl' (\a p -> if skip p then a else f p : a) [])
+       (processes >>= mapM getProcessData)
+
+showInfo :: String -> String -> Float -> Monitor [String]
+showInfo nm sms mms = do
+  mnw <- getConfigValue maxWidth
+  mxw <- getConfigValue minWidth
+  let lsms = length sms
+      nmw = mnw - lsms - 1
+      nmx = mxw - lsms - 1
+      rnm = if nmw > 0 then padString nmw nmx " " True "" nm else nm
+  mstr <- showWithColors' sms mms
+  both <- showWithColors' (rnm ++ " " ++ sms) mms
+  return [nm, mstr, both]
+
+processName :: [String] -> String
+processName = drop 1 . init . (!!1)
+
+sortTop :: [(String, Float)] -> [(String, Float)]
+sortTop =  sortBy (flip (comparing snd))
+
+type MemInfo = (String, Float)
+
+meminfo :: [String] -> MemInfo
+meminfo fs = (processName fs, pageSize * parseFloat (fs!!23))
+
+meminfos :: IO [MemInfo]
+meminfos = handleProcesses meminfo
+
+showMemInfo :: Float -> MemInfo -> Monitor [String]
+showMemInfo scale (nm, rss) =
+  showInfo nm (showWithUnits 3 1 rss) (100 * rss / sc)
+  where sc = if scale > 0 then scale else 100
+
+showMemInfos :: [MemInfo] -> Monitor [[String]]
+showMemInfos ms = mapM (showMemInfo tm) ms
+  where tm = sum (map snd ms)
+
+runTopMem :: [String] -> Monitor String
+runTopMem _ = do
+  mis <- io meminfos
+  pstr <- showMemInfos (sortTop mis)
+  parseTemplate $ concat pstr
+
+type Pid = Int
+type TimeInfo = (String, Float)
+type TimeEntry = (Pid, TimeInfo)
+type Times = [TimeEntry]
+type TimesRef = IORef (Times, UTCTime)
+
+timeMemEntry :: [String] -> (TimeEntry, MemInfo)
+timeMemEntry fs = ((p, (n, t)), (n, r))
+  where p = parseInt (head fs)
+        n = processName fs
+        t = parseFloat (fs!!13) + parseFloat (fs!!14)
+        (_, r) = meminfo fs
+
+timeMemEntries :: IO [(TimeEntry, MemInfo)]
+timeMemEntries = handleProcesses timeMemEntry
+
+timeMemInfos :: IO (Times, [MemInfo], Int)
+timeMemInfos = fmap res timeMemEntries
+  where res x = (sortBy (comparing fst) $ map fst x, map snd x, length x)
+
+combine :: Times -> Times -> Times
+combine _ [] = []
+combine [] ts = ts
+combine l@((p0, (n0, t0)):ls) r@((p1, (n1, t1)):rs)
+  | p0 == p1 && n0 == n1 = (p0, (n0, t1 - t0)) : combine ls rs
+  | p0 <= p1 = combine ls r
+  | otherwise = (p1, (n1, t1)) : combine l rs
+
+take' :: Int -> [a] -> [a]
+take' m l = let !r = tk m l in length l `seq` r
+  where tk 0 _ = []
+        tk _ [] = []
+        tk n (x:xs) = let !r = tk (n - 1) xs in x : r
+
+topProcesses :: TimesRef -> Float -> IO (Int, [TimeInfo], [MemInfo])
+topProcesses tref scale = do
+  (t0, c0) <- readIORef tref
+  (t1, mis, len) <- timeMemInfos
+  c1 <- getCurrentTime
+  let scx = realToFrac (diffUTCTime c1 c0) * scale
+      !scx' = if scx > 0 then scx else scale
+      nts = map (\(_, (nm, t)) -> (nm, min 100 (t / scx'))) (combine t0 t1)
+      !t1' = take' (length t1) t1
+      !nts' = take' maxEntries (sortTop nts)
+      !mis' = take' maxEntries (sortTop mis)
+  writeIORef tref (t1', c1)
+  return (len, nts', mis')
+
+showTimeInfo :: TimeInfo -> Monitor [String]
+showTimeInfo (n, t) =
+  getConfigValue decDigits >>= \d -> showInfo n (showDigits d t) t
+
+showTimeInfos :: [TimeInfo] -> Monitor [[String]]
+showTimeInfos = mapM showTimeInfo
+
+runTop :: TimesRef -> Float -> [String] -> Monitor String
+runTop tref scale _ = do
+  (no, ps, ms) <- io $ topProcesses tref scale
+  pstr <- showTimeInfos ps
+  mstr <- showMemInfos ms
+  parseTemplate $ show no : concat (zipWith (++) pstr mstr) ++ repeat "N/A"
+
+startTop :: [String] -> Int -> (String -> IO ()) -> IO ()
+startTop a r cb = do
+  cr <- getSysVar ClockTick
+  c <- getCurrentTime
+  tref <- newIORef ([], c)
+  let scale = fromIntegral cr / 100
+  _ <- topProcesses tref scale
+  runM a topConfig (runTop tref scale) r cb
diff --git a/src/Xmobar/Plugins/Monitors/UVMeter.hs b/src/Xmobar/Plugins/Monitors/UVMeter.hs
new file mode 100644
index 0000000..079177f
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/UVMeter.hs
@@ -0,0 +1,157 @@
+{-# LANGUAGE OverloadedStrings #-}
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.UVMeter
+-- Copyright   :  (c) Róman Joost
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Róman Joost
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- An australian uv monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.UVMeter where
+
+import Xmobar.Plugins.Monitors.Common
+
+import qualified Control.Exception as CE
+import Network.HTTP.Conduit
+       (parseRequest, newManager, tlsManagerSettings, httpLbs,
+        responseBody)
+import Data.ByteString.Lazy.Char8 as B
+import Text.Read (readMaybe)
+import Text.Parsec
+import Text.Parsec.String
+import Control.Monad (void)
+
+
+uvConfig :: IO MConfig
+uvConfig = mkMConfig
+       "<station>" -- template
+       ["station"                               -- available replacements
+       ]
+
+newtype UvInfo = UV { index :: String }
+    deriving (Show)
+
+uvURL :: String
+uvURL = "https://uvdata.arpansa.gov.au/xml/uvvalues.xml"
+
+getData :: IO String
+getData =
+  CE.catch (do request <- parseRequest uvURL
+               manager <- newManager tlsManagerSettings
+               res <- httpLbs request manager
+               return $ B.unpack $ responseBody res)
+           errHandler
+  where errHandler
+          :: CE.SomeException -> IO String
+        errHandler _ = return "<Could not retrieve data>"
+
+textToXMLDocument :: String -> Either ParseError [XML]
+textToXMLDocument = parse document ""
+
+formatUVRating :: Maybe Float -> Monitor String
+formatUVRating Nothing = getConfigValue naString
+formatUVRating (Just x) = do
+    uv <- showWithColors show x
+    parseTemplate [uv]
+
+getUVRating :: String -> [XML] ->  Maybe Float
+getUVRating locID (Element "stations" _ y:_) = getUVRating locID y
+getUVRating locID (Element "location" [Attribute attr] ys:xs)
+    | locID == snd attr = getUVRating locID ys
+    | otherwise = getUVRating locID xs
+getUVRating _ (Element "index" [] [Body rate]:_) = readMaybe rate
+getUVRating locID (_:xs) = getUVRating locID xs
+getUVRating _ [] = Nothing
+
+
+runUVMeter :: [String] -> Monitor String
+runUVMeter [] = return "N.A."
+runUVMeter (s:_) = do
+    resp <- io getData
+    case textToXMLDocument resp of
+        Right doc -> formatUVRating (getUVRating s doc)
+        Left _ -> getConfigValue naString
+
+-- | XML Parsing code comes here.
+-- This is a very simple XML parser to just deal with the uvvalues.xml
+-- provided by ARPANSA. If you work on a new plugin which needs an XML
+-- parser perhaps consider using a real XML parser and refactor this
+-- plug-in to us it as well.
+--
+-- Note: This parser can not deal with short tags.
+--
+-- Kudos to: Charlie Harvey for his article about writing an XML Parser
+-- with Parsec.
+--
+
+type AttrName  = String
+type AttrValue = String
+
+newtype Attribute = Attribute (AttrName, AttrValue)
+    deriving (Show)
+
+data XML = Element String [Attribute] [XML]
+         | Decl String
+         | Body String
+    deriving (Show)
+
+-- | parse the document
+--
+document :: Parser [XML]
+document = do
+    spaces
+    y <- try xmlDecl <|> tag
+    spaces
+    x <- many tag
+    spaces
+    return (y : x)
+
+-- | parse any tags
+--
+tag :: Parser XML
+tag  = do
+    char '<'
+    spaces
+    name <- many (letter <|> digit)
+    spaces
+    attr <- many attribute
+    spaces
+    string ">"
+    eBody <- many elementBody
+    endTag name
+    spaces
+    return (Element name attr eBody)
+
+xmlDecl :: Parser XML
+xmlDecl = do
+    void $ manyTill anyToken (string "<?xml") -- ignore the byte order mark
+    decl <- many (noneOf "?>")
+    string "?>"
+    return (Decl decl)
+
+elementBody :: Parser XML
+elementBody = spaces *> try tag <|> text
+
+endTag :: String -> Parser String
+endTag str = string "</" *> string str <* char '>'
+
+text :: Parser XML
+text = Body <$> many1 (noneOf "><")
+
+attribute :: Parser Attribute
+attribute = do
+    name <- many (noneOf "= />")
+    spaces
+    char '='
+    spaces
+    char '"'
+    value <- many (noneOf "\"")
+    char '"'
+    spaces
+    return (Attribute (name, value))
diff --git a/src/Xmobar/Plugins/Monitors/Uptime.hs b/src/Xmobar/Plugins/Monitors/Uptime.hs
new file mode 100644
index 0000000..235fc85
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Uptime.hs
@@ -0,0 +1,50 @@
+------------------------------------------------------------------------------
+-- |
+-- Module      : Plugins.Monitors.Uptime
+-- Copyright   : (c) 2010 Jose Antonio Ortega Ruiz
+-- License     : BSD3-style (see LICENSE)
+--
+-- Maintainer  : jao@gnu.org
+-- Stability   : unstable
+-- Portability : unportable
+-- Created: Sun Dec 12, 2010 20:26
+--
+--
+-- Uptime
+--
+------------------------------------------------------------------------------
+
+
+module Xmobar.Plugins.Monitors.Uptime (uptimeConfig, runUptime) where
+
+import Xmobar.Plugins.Monitors.Common
+
+import qualified Data.ByteString.Lazy.Char8 as B
+
+uptimeConfig :: IO MConfig
+uptimeConfig = mkMConfig "Up <days>d <hours>h <minutes>m"
+                         ["days", "hours", "minutes", "seconds"]
+
+readUptime :: IO Float
+readUptime =
+  fmap (read . B.unpack . head . B.words) (B.readFile "/proc/uptime")
+
+secsPerDay :: Integer
+secsPerDay = 24 * 3600
+
+uptime :: Monitor [String]
+uptime = do
+  t <- io readUptime
+  u <- getConfigValue useSuffix
+  let tsecs = floor t
+      secs = tsecs `mod` secsPerDay
+      days = tsecs `quot` secsPerDay
+      hours = secs `quot` 3600
+      mins = (secs `mod` 3600) `div` 60
+      ss = secs `mod` 60
+      str x s = if u then show x ++ s else show x
+  mapM (`showWithColors'` days)
+       [str days "d", str hours "h", str mins "m", str ss "s"]
+
+runUptime :: [String] -> Monitor String
+runUptime _ = uptime >>= parseTemplate
diff --git a/src/Xmobar/Plugins/Monitors/Volume.hs b/src/Xmobar/Plugins/Monitors/Volume.hs
new file mode 100644
index 0000000..1d3281c
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Volume.hs
@@ -0,0 +1,196 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Volume
+-- Copyright   :  (c) 2011, 2013, 2015, 2018 Thomas Tuegel
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A monitor for ALSA soundcards
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Volume
+  ( runVolume
+  , runVolumeWith
+  , volumeConfig
+  , options
+  , defaultOpts
+  , VolumeOpts
+  ) where
+
+import Control.Applicative ((<$>))
+import Control.Monad ( liftM2, liftM3, mplus )
+import Data.Traversable (sequenceA)
+import Xmobar.Plugins.Monitors.Common
+import Sound.ALSA.Mixer
+import qualified Sound.ALSA.Exception as AE
+import System.Console.GetOpt
+
+volumeConfig :: IO MConfig
+volumeConfig = mkMConfig "Vol: <volume>% <status>"
+                         ["volume", "volumebar", "volumevbar", "dB","status", "volumeipat"]
+
+
+data VolumeOpts = VolumeOpts
+    { onString :: String
+    , offString :: String
+    , onColor :: Maybe String
+    , offColor :: Maybe String
+    , highDbThresh :: Float
+    , lowDbThresh :: Float
+    , volumeIconPattern :: Maybe IconPattern
+    }
+
+defaultOpts :: VolumeOpts
+defaultOpts = VolumeOpts
+    { onString = "[on] "
+    , offString = "[off]"
+    , onColor = Just "green"
+    , offColor = Just "red"
+    , highDbThresh = -5.0
+    , lowDbThresh = -30.0
+    , volumeIconPattern = Nothing
+    }
+
+options :: [OptDescr (VolumeOpts -> VolumeOpts)]
+options =
+    [ Option "O" ["on"] (ReqArg (\x o -> o { onString = x }) "") ""
+    , Option "o" ["off"] (ReqArg (\x o -> o { offString = x }) "") ""
+    , Option "" ["lowd"] (ReqArg (\x o -> o { lowDbThresh = read x }) "") ""
+    , Option "" ["highd"] (ReqArg (\x o -> o { highDbThresh = read x }) "") ""
+    , Option "C" ["onc"] (ReqArg (\x o -> o { onColor = Just x }) "") ""
+    , Option "c" ["offc"] (ReqArg (\x o -> o { offColor = Just x }) "") ""
+    , Option "" ["volume-icon-pattern"] (ReqArg (\x o ->
+       o { volumeIconPattern = Just $ parseIconPattern x }) "") ""
+    ]
+
+parseOpts :: [String] -> IO VolumeOpts
+parseOpts argv =
+    case getOpt Permute options argv of
+        (o, _, []) -> return $ foldr id defaultOpts o
+        (_, _, errs) -> ioError . userError $ concat errs
+
+percent :: Integer -> Integer -> Integer -> Float
+percent v' lo' hi' = (v - lo) / (hi - lo)
+  where v = fromIntegral v'
+        lo = fromIntegral lo'
+        hi = fromIntegral hi'
+
+formatVol :: Integer -> Integer -> Integer -> Monitor String
+formatVol lo hi v =
+    showPercentWithColors $ percent v lo hi
+
+formatVolBar :: Integer -> Integer -> Integer -> Monitor String
+formatVolBar lo hi v =
+    showPercentBar (100 * x) x where x = percent v lo hi
+
+formatVolVBar :: Integer -> Integer -> Integer -> Monitor String
+formatVolVBar lo hi v =
+    showVerticalBar (100 * x) x where x = percent v lo hi
+
+formatVolDStr :: Maybe IconPattern -> Integer -> Integer -> Integer -> Monitor String
+formatVolDStr ipat lo hi v =
+    showIconPattern ipat $ percent v lo hi
+
+switchHelper :: VolumeOpts
+             -> (VolumeOpts -> Maybe String)
+             -> (VolumeOpts -> String)
+             -> Monitor String
+switchHelper opts cHelp strHelp = return $
+    colorHelper (cHelp opts)
+    ++ strHelp opts
+    ++ maybe "" (const "</fc>") (cHelp opts)
+
+formatSwitch :: VolumeOpts -> Bool -> Monitor String
+formatSwitch opts True = switchHelper opts onColor onString
+formatSwitch opts False = switchHelper opts offColor offString
+
+colorHelper :: Maybe String -> String
+colorHelper = maybe "" (\c -> "<fc=" ++ c ++ ">")
+
+formatDb :: VolumeOpts -> Integer -> Monitor String
+formatDb opts dbi = do
+    h <- getConfigValue highColor
+    m <- getConfigValue normalColor
+    l <- getConfigValue lowColor
+    d <- getConfigValue decDigits
+    let db = fromIntegral dbi / 100.0
+        digits = showDigits d db
+        startColor | db >= highDbThresh opts = colorHelper h
+                   | db < lowDbThresh opts = colorHelper l
+                   | otherwise = colorHelper m
+        stopColor | null startColor = ""
+                  | otherwise = "</fc>"
+    return $ startColor ++ digits ++ stopColor
+
+runVolume :: String -> String -> [String] -> Monitor String
+runVolume mixerName controlName argv = do
+    opts <- io $ parseOpts argv
+    runVolumeWith opts mixerName controlName
+
+runVolumeWith :: VolumeOpts -> String -> String -> Monitor String
+runVolumeWith opts mixerName controlName = do
+    (lo, hi, val, db, sw) <- io readMixer
+    p <- liftMonitor $ liftM3 formatVol lo hi val
+    b <- liftMonitor $ liftM3 formatVolBar lo hi val
+    v <- liftMonitor $ liftM3 formatVolVBar lo hi val
+    d <- getFormatDB opts db
+    s <- getFormatSwitch opts sw
+    ipat <- liftMonitor $ liftM3 (formatVolDStr $ volumeIconPattern opts) lo hi val
+    parseTemplate [p, b, v, d, s, ipat]
+
+  where
+
+    readMixer =
+      AE.catch (withMixer mixerName $ \mixer -> do
+                   control <- getControlByName mixer controlName
+                   (lo, hi) <- liftMaybe $ getRange <$> volumeControl control
+                   val <- getVal $ volumeControl control
+                   db <- getDB $ volumeControl control
+                   sw <- getSw $ switchControl control
+                   return (lo, hi, val, db, sw))
+                (const $ return (Nothing, Nothing, Nothing, Nothing, Nothing))
+
+    volumeControl :: Maybe Control -> Maybe Volume
+    volumeControl c = (playback . volume =<< c)
+              `mplus` (capture . volume =<< c)
+              `mplus` (common . volume =<< c)
+
+    switchControl :: Maybe Control -> Maybe Switch
+    switchControl c = (playback . switch =<< c)
+              `mplus` (capture . switch =<< c)
+              `mplus` (common . switch =<< c)
+
+    liftMaybe :: Maybe (IO (a,b)) -> IO (Maybe a, Maybe b)
+    liftMaybe = fmap (liftM2 (,) (fmap fst) (fmap snd)) . sequenceA
+
+    liftMonitor :: Maybe (Monitor String) -> Monitor String
+    liftMonitor Nothing = unavailable
+    liftMonitor (Just m) = m
+
+    channel v r = AE.catch (getChannel FrontLeft v) (const $ return $ Just r)
+
+    getDB :: Maybe Volume -> IO (Maybe Integer)
+    getDB Nothing = return Nothing
+    getDB (Just v) = channel (dB v) 0
+
+    getVal :: Maybe Volume -> IO (Maybe Integer)
+    getVal Nothing = return Nothing
+    getVal (Just v) = channel (value v) 0
+
+    getSw :: Maybe Switch -> IO (Maybe Bool)
+    getSw Nothing = return Nothing
+    getSw (Just s) = channel s False
+
+    getFormatDB :: VolumeOpts -> Maybe Integer -> Monitor String
+    getFormatDB _ Nothing = unavailable
+    getFormatDB opts' (Just d) = formatDb opts' d
+
+    getFormatSwitch :: VolumeOpts -> Maybe Bool -> Monitor String
+    getFormatSwitch _ Nothing = unavailable
+    getFormatSwitch opts' (Just sw) = formatSwitch opts' sw
+
+    unavailable = getConfigValue naString
diff --git a/src/Xmobar/Plugins/Monitors/Weather.hs b/src/Xmobar/Plugins/Monitors/Weather.hs
new file mode 100644
index 0000000..cb5bf07
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Weather.hs
@@ -0,0 +1,255 @@
+{-# LANGUAGE CPP #-}
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Weather
+-- Copyright   :  (c) Andrea Rossato
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose A. Ortega Ruiz <jao@gnu.org>
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A weather monitor for Xmobar
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Weather where
+
+import Xmobar.Plugins.Monitors.Common
+
+import qualified Control.Exception as CE
+
+#ifdef HTTP_CONDUIT
+import Network.HTTP.Conduit
+import Network.HTTP.Types.Status
+import Network.HTTP.Types.Method
+import qualified Data.ByteString.Lazy.Char8 as B
+#else
+import Network.HTTP
+#endif
+
+import Text.ParserCombinators.Parsec
+
+weatherConfig :: IO MConfig
+weatherConfig = mkMConfig
+       "<station>: <tempC>C, rh <rh>% (<hour>)" -- template
+       ["station"                               -- available replacements
+       , "stationState"
+       , "year"
+       , "month"
+       , "day"
+       , "hour"
+       , "windCardinal"
+       , "windAzimuth"
+       , "windMph"
+       , "windKnots"
+       , "windKmh"
+       , "windMs"
+       , "visibility"
+       , "skyCondition"
+       , "tempC"
+       , "tempF"
+       , "dewPointC"
+       , "dewPointF"
+       , "rh"
+       , "pressure"
+       ]
+
+data WindInfo =
+    WindInfo {
+         windCardinal :: String -- cardinal direction
+       , windAzimuth  :: String -- azimuth direction
+       , windMph      :: String -- speed (MPH)
+       , windKnots    :: String -- speed (knot)
+       , windKmh      :: String -- speed (km/h)
+       , windMs       :: String -- speed (m/s)
+    } deriving (Show)
+
+data WeatherInfo =
+    WI { stationPlace :: String
+       , stationState :: String
+       , year         :: String
+       , month        :: String
+       , day          :: String
+       , hour         :: String
+       , windInfo     :: WindInfo
+       , visibility   :: String
+       , skyCondition :: String
+       , tempC        :: Int
+       , tempF        :: Int
+       , dewPointC    :: Int
+       , dewPointF    :: Int
+       , humidity     :: Int
+       , pressure     :: Int
+       } deriving (Show)
+
+pTime :: Parser (String, String, String, String)
+pTime = do y <- getNumbersAsString
+           char '.'
+           m <- getNumbersAsString
+           char '.'
+           d <- getNumbersAsString
+           char ' '
+           (h:hh:mi:mimi) <- getNumbersAsString
+           char ' '
+           return (y, m, d ,h:hh:":"++mi:mimi)
+
+noWind :: WindInfo
+noWind = WindInfo "μ" "μ" "0" "0" "0" "0"
+
+pWind :: Parser WindInfo
+pWind =
+  let tospace = manyTill anyChar (char ' ')
+      toKmh knots = knots $* 1.852
+      toMs knots  = knots $* 0.514
+      ($*) :: String -> Double -> String
+      op1 $* op2 = show (round ((read op1::Double) * op2)::Integer)
+
+      -- Occasionally there is no wind and a METAR report gives simply, "Wind: Calm:0"
+      wind0 = do manyTill skipRestOfLine (string "Wind: Calm:0")
+                 return noWind
+      windVar = do manyTill skipRestOfLine (string "Wind: Variable at ")
+                   mph <- tospace
+                   string "MPH ("
+                   knot <- tospace
+                   manyTill anyChar newline
+                   return $ WindInfo "μ" "μ" mph knot (toKmh knot) (toMs knot)
+      wind = do manyTill skipRestOfLine (string "Wind: from the ")
+                cardinal <- tospace
+                char '('
+                azimuth <- tospace
+                string "degrees) at "
+                mph <- tospace
+                string "MPH ("
+                knot <- tospace
+                manyTill anyChar newline
+                return $ WindInfo cardinal azimuth mph knot (toKmh knot) (toMs knot)
+  in try wind0 <|> try windVar <|> try wind <|> return noWind
+
+pTemp :: Parser (Int, Int)
+pTemp = do let num = digit <|> char '-' <|> char '.'
+           f <- manyTill num $ char ' '
+           manyTill anyChar $ char '('
+           c <- manyTill num $ char ' '
+           skipRestOfLine
+           return (floor (read c :: Double), floor (read f :: Double))
+
+pRh :: Parser Int
+pRh = do s <- manyTill digit (char '%' <|> char '.')
+         return $ read s
+
+pPressure :: Parser Int
+pPressure = do manyTill anyChar $ char '('
+               s <- manyTill digit $ char ' '
+               skipRestOfLine
+               return $ read s
+
+{-
+    example of 'http://weather.noaa.gov/pub/data/observations/metar/decoded/VTUD.TXT':
+        Station name not available
+        Aug 11, 2013 - 10:00 AM EDT / 2013.08.11 1400 UTC
+        Wind: from the N (350 degrees) at 1 MPH (1 KT):0
+        Visibility: 4 mile(s):0
+        Sky conditions: mostly clear
+        Temperature: 77 F (25 C)
+        Dew Point: 73 F (23 C)
+        Relative Humidity: 88%
+        Pressure (altimeter): 29.77 in. Hg (1008 hPa)
+        ob: VTUD 111400Z 35001KT 8000 FEW030 25/23 Q1008 A2977 INFO R RWY30
+        cycle: 14
+-}
+parseData :: Parser [WeatherInfo]
+parseData =
+    do (st, ss) <- try (string "Station name not available" >> return ("??", "??")) <|>
+                   (do st <- getAllBut ","
+                       space
+                       ss <- getAllBut "("
+                       return (st, ss)
+                   )
+       skipRestOfLine >> getAllBut "/"
+       (y,m,d,h) <- pTime
+       w <- pWind
+       v <- getAfterString "Visibility: "
+       sk <- getAfterString "Sky conditions: "
+       skipTillString "Temperature: "
+       (tC,tF) <- pTemp
+       skipTillString "Dew Point: "
+       (dC, dF) <- pTemp
+       skipTillString "Relative Humidity: "
+       rh <- pRh
+       skipTillString "Pressure (altimeter): "
+       p <- pPressure
+       manyTill skipRestOfLine eof
+       return [WI st ss y m d h w v sk tC tF dC dF rh p]
+
+defUrl :: String
+-- "http://weather.noaa.gov/pub/data/observations/metar/decoded/"
+defUrl = "http://tgftp.nws.noaa.gov/data/observations/metar/decoded/"
+
+stationUrl :: String -> String
+stationUrl station = defUrl ++ station ++ ".TXT"
+
+getData :: String -> IO String
+#ifdef HTTP_CONDUIT
+getData station = CE.catch (do
+    manager <- newManager tlsManagerSettings
+    request <- parseUrl $ stationUrl station
+    res <- httpLbs request manager
+    return $  B.unpack $ responseBody res
+    ) errHandler
+    where errHandler :: CE.SomeException -> IO String
+          errHandler _ = return "<Could not retrieve data>"
+#else
+getData station = do
+    let request = getRequest (stationUrl station)
+    CE.catch (simpleHTTP request >>= getResponseBody) errHandler
+    where errHandler :: CE.IOException -> IO String
+          errHandler _ = return "<Could not retrieve data>"
+#endif
+
+formatWeather :: [WeatherInfo] -> Monitor String
+formatWeather [WI st ss y m d h (WindInfo wc wa wm wk wkh wms) v sk tC tF dC dF r p] =
+    do cel <- showWithColors show tC
+       far <- showWithColors show tF
+       parseTemplate [st, ss, y, m, d, h, wc, wa, wm, wk, wkh, wms, v, sk, cel, far, show dC, show dF, show r , show p ]
+formatWeather _ = getConfigValue naString
+
+runWeather :: [String] -> Monitor String
+runWeather str =
+    do d <- io $ getData $ head str
+       i <- io $ runP parseData d
+       formatWeather i
+
+weatherReady :: [String] -> Monitor Bool
+#ifdef HTTP_CONDUIT
+weatherReady str = do
+    initRequest <- parseUrl $ stationUrl $ head str
+    let request = initRequest{method = methodHead}
+    io $ CE.catch ( do
+        manager <- newManager tlsManagerSettings
+        res     <- httpLbs request manager
+        return $ checkResult $responseStatus res ) errHandler
+    where errHandler :: CE.SomeException -> IO Bool
+          errHandler _ = return False
+          checkResult status
+            | statusIsServerError status = False
+            | statusIsClientError status = False
+            | otherwise = True
+#else
+weatherReady str = do
+    let station = head str
+        request = headRequest (stationUrl station)
+    io $ CE.catch (simpleHTTP request >>= checkResult) errHandler
+    where errHandler :: CE.IOException -> IO Bool
+          errHandler _ = return False
+          checkResult result =
+            case result of
+                Left _ -> return False
+                Right response ->
+                    case rspCode response of
+                        -- Permission or network errors are failures; anything
+                        -- else is recoverable.
+                        (4, _, _) -> return False
+                        (5, _, _) -> return False
+                        (_, _, _) -> return True
+#endif
diff --git a/src/Xmobar/Plugins/Monitors/Wireless.hs b/src/Xmobar/Plugins/Monitors/Wireless.hs
new file mode 100644
index 0000000..545f6bc
--- /dev/null
+++ b/src/Xmobar/Plugins/Monitors/Wireless.hs
@@ -0,0 +1,70 @@
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Plugins.Monitors.Wireless
+-- Copyright   :  (c) Jose Antonio Ortega Ruiz
+-- License     :  BSD-style (see LICENSE)
+--
+-- Maintainer  :  Jose Antonio Ortega Ruiz
+-- Stability   :  unstable
+-- Portability :  unportable
+--
+-- A monitor reporting ESSID and link quality for wireless interfaces
+--
+-----------------------------------------------------------------------------
+
+module Xmobar.Plugins.Monitors.Wireless (wirelessConfig, runWireless)  where
+
+import System.Console.GetOpt
+
+import Xmobar.Plugins.Monitors.Common
+import Network.IWlib
+
+newtype WirelessOpts = WirelessOpts
+  { qualityIconPattern :: Maybe IconPattern
+  }
+
+defaultOpts :: WirelessOpts
+defaultOpts = WirelessOpts
+  { qualityIconPattern = Nothing
+  }
+
+options :: [OptDescr (WirelessOpts -> WirelessOpts)]
+options =
+  [ Option "" ["quality-icon-pattern"] (ReqArg (\d opts ->
+     opts { qualityIconPattern = Just $ parseIconPattern d }) "") ""
+  ]
+
+parseOpts :: [String] -> IO WirelessOpts
+parseOpts argv =
+  case getOpt Permute options argv of
+       (o, _, []) -> return $ foldr id defaultOpts o
+       (_, _, errs) -> ioError . userError $ concat errs
+
+wirelessConfig :: IO MConfig
+wirelessConfig =
+  mkMConfig "<essid> <quality>"
+            ["essid", "quality", "qualitybar", "qualityvbar", "qualityipat"]
+
+runWireless :: String -> [String] -> Monitor String
+runWireless iface args = do
+  opts <- io $ parseOpts args
+  iface' <- if "" == iface then io findInterface else return iface
+  wi <- io $ getWirelessInfo iface'
+  na <- getConfigValue naString
+  let essid = wiEssid wi
+      qlty = fromIntegral $ wiQuality wi
+      e = if essid == "" then na else essid
+  ep <- showWithPadding e
+  q <- if qlty >= 0
+       then showPercentWithColors (qlty / 100)
+       else showWithPadding ""
+  qb <- showPercentBar qlty (qlty / 100)
+  qvb <- showVerticalBar qlty (qlty / 100)
+  qipat <- showIconPattern (qualityIconPattern opts) (qlty / 100)
+  parseTemplate [ep, q, qb, qvb, qipat]
+
+findInterface :: IO String
+findInterface = do
+  c <- readFile "/proc/net/wireless"
+  let nds = lines c
+  return $ if length nds > 2 then takeWhile (/= 'c') (nds!!2) else []