From 238c4ab7e2f076f879d931588f140bab78654747 Mon Sep 17 00:00:00 2001 From: Krzysztof Kosciuszkiewicz Date: Thu, 19 Jul 2007 03:55:30 +0200 Subject: Safer parsing without parsec in battery monitor darcs-hash:20070719015530-ba08c-065e9572b186c12db8236c28fa249793eba51e32.gz --- Plugins/Monitors/Batt.hs | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) (limited to 'Plugins') diff --git a/Plugins/Monitors/Batt.hs b/Plugins/Monitors/Batt.hs index 96cd8ef..4341452 100644 --- a/Plugins/Monitors/Batt.hs +++ b/Plugins/Monitors/Batt.hs @@ -16,10 +16,10 @@ module Plugins.Monitors.Batt where import qualified Data.ByteString.Lazy.Char8 as B import qualified Data.Map as M +import Data.Char +import Data.List import Data.Maybe -import Data.Either import Control.Monad -import Text.ParserCombinators.Parsec import System.Posix.Files import Plugins.Monitors.Common @@ -48,18 +48,17 @@ readFileBatt (i,s) = return $ mkMap a b mkMap :: B.ByteString -> B.ByteString -> BattMap -mkMap a b = M.fromList . mapMaybe toAssoc $ concatMap B.lines [a, b] +mkMap a b = M.fromList . mapMaybe parseLine $ concatMap B.lines [a, b] -toAssoc bs = case parse parseLine "" (B.unpack bs) of - Left _ -> Nothing - Right a -> Just a - -parseLine = do hd <- many1 $ noneOf ":" - char ':' - spaces - tl <- many1 digit - let t = read tl - return (hd, t) +parseLine :: B.ByteString -> Maybe (String, Integer) +parseLine s = + let (k, r) = B.break (==':') s + (v, _) = B.span (isDigit) (B.tail r) + (ks, vs) = (B.unpack k, B.unpack v) + in case (ks, vs) of + ([], _) -> Nothing + (_, []) -> Nothing + _ -> Just (ks, read vs) parseBATT :: IO Float parseBATT = -- cgit v1.2.3