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Diffstat (limited to 'app/Configuration.hs')
| -rw-r--r-- | app/Configuration.hs | 158 |
1 files changed, 0 insertions, 158 deletions
diff --git a/app/Configuration.hs b/app/Configuration.hs deleted file mode 100644 index db5c109..0000000 --- a/app/Configuration.hs +++ /dev/null @@ -1,158 +0,0 @@ -{-# LANGUAGE FlexibleContexts #-} - ------------------------------------------------------------------------------- --- | --- Module: Configuration --- Copyright: (c) 2018 Jose Antonio Ortega Ruiz --- License: BSD3-style (see LICENSE) --- --- Maintainer: jao@gnu.org --- Stability: unstable --- Portability: portable --- Created: Wed Nov 21, 2018 23:13 --- --- --- Parsing configuration files --- ------------------------------------------------------------------------------- - - -module Configuration (parseConfig) where - -import Text.ParserCombinators.Parsec -import Text.ParserCombinators.Parsec.Number (int) -import Text.ParserCombinators.Parsec.Perm ((<|?>), (<$?>), permute) - -import qualified Xmobar.Config as C - -stripComments :: String -> String -stripComments = - unlines . map (drop 5 . strip False . (replicate 5 ' '++)) . lines - where strip m ('-':'-':xs) = if m then "--" ++ strip m xs else "" - strip m ('"':xs) = '"': strip (not m) xs - strip m (x:xs) = x : strip m xs - strip _ [] = [] - --- | Parse the config, logging a list of fields that were missing and replaced --- by the default definition. -parseConfig :: String -> Either ParseError (C.Config,[String]) -parseConfig = runParser parseConf fields "Config" . stripComments - where - parseConf = do - many space - sepEndSpc ["Config","{"] - x <- perms - eof - s <- getState - return (x,s) - - perms = permute $ C.Config - <$?> pFont <|?> pFontList <|?> pWmClass <|?> pWmName - <|?> pBgColor <|?> pFgColor - <|?> pPosition <|?> pTextOffset <|?> pTextOffsets - <|?> pIconOffset <|?> pBorder - <|?> pBdColor <|?> pBdWidth <|?> pAlpha <|?> pHideOnStart - <|?> pAllDesktops <|?> pOverrideRedirect <|?> pPickBroadest - <|?> pLowerOnStart <|?> pPersistent <|?> pIconRoot - <|?> pCommands <|?> pSepChar <|?> pAlignSep <|?> pTemplate - - - fields = [ "font", "additionalFonts","bgColor", "fgColor" - , "wmClass", "wmName", "sepChar" - , "alignSep" , "border", "borderColor" ,"template" - , "position" , "textOffset", "textOffsets", "iconOffset" - , "allDesktops", "overrideRedirect", "pickBroadest" - , "hideOnStart", "lowerOnStart", "persistent", "iconRoot" - , "alpha", "commands" - ] - - pFont = strField C.font "font" - pFontList = strListField C.additionalFonts "additionalFonts" - pWmClass = strField C.wmClass "wmClass" - pWmName = strField C.wmName "wmName" - pBgColor = strField C.bgColor "bgColor" - pFgColor = strField C.fgColor "fgColor" - pBdColor = strField C.borderColor "borderColor" - pSepChar = strField C.sepChar "sepChar" - pAlignSep = strField C.alignSep "alignSep" - pTemplate = strField C.template "template" - - pTextOffset = readField C.textOffset "textOffset" - pTextOffsets = readIntList C.textOffsets "textOffsets" - pIconOffset = readField C.iconOffset "iconOffset" - pPosition = readField C.position "position" - pHideOnStart = readField C.hideOnStart "hideOnStart" - pLowerOnStart = readField C.lowerOnStart "lowerOnStart" - pPersistent = readField C.persistent "persistent" - pBorder = readField C.border "border" - pBdWidth = readField C.borderWidth "borderWidth" - pAllDesktops = readField C.allDesktops "allDesktops" - pOverrideRedirect = readField C.overrideRedirect "overrideRedirect" - pPickBroadest = readField C.pickBroadest "pickBroadest" - pIconRoot = readField C.iconRoot "iconRoot" - pAlpha = readField C.alpha "alpha" - - pCommands = field C.commands "commands" readCommands - - staticPos = do string "Static" - wrapSkip (string "{") - p <- many (noneOf "}") - wrapSkip (string "}") - string "," - return ("Static {" ++ p ++ "}") - tillFieldEnd = staticPos <|> many (noneOf ",}\n\r") - - commandsEnd = wrapSkip (string "]") >> (string "}" <|> notNextRun) - notNextRun = do {string "," - ; notFollowedBy $ wrapSkip $ string "Run" - ; return "," - } - readCommands = manyTill anyChar (try commandsEnd) >>= - read' commandsErr . flip (++) "]" - strField e n = field e n strMulti - - strMulti = scan '"' - where - scan lead = do - spaces - char lead - s <- manyTill anyChar (rowCont <|> unescQuote) - (char '"' >> return s) <|> fmap (s ++) (scan '\\') - rowCont = try $ char '\\' >> string "\n" - unescQuote = lookAhead (noneOf "\\") >> lookAhead (string "\"") - - strListField e n = field e n strList - strList = do - spaces - char '[' - list <- sepBy (strMulti >>= \x -> spaces >> return x) (char ',') - spaces - char ']' - return list - - wrapSkip x = many space >> x >>= \r -> many space >> return r - sepEndSpc = mapM_ (wrapSkip . try . string) - fieldEnd = many $ space <|> oneOf ",}" - field e n c = (,) (e C.defaultConfig) $ - updateState (filter (/= n)) >> sepEndSpc [n,"="] >> - wrapSkip c >>= \r -> fieldEnd >> return r - readField a n = field a n $ tillFieldEnd >>= read' n - - readIntList d n = field d n intList - intList = do - spaces - char '[' - list <- sepBy (spaces >> int >>= \x-> spaces >> return x) (char ',') - spaces - char ']' - return list - - read' d s = case reads s of - [(x, _)] -> return x - _ -> fail $ "error reading the " ++ d ++ " field: " ++ s - -commandsErr :: String -commandsErr = "commands: this usually means that a command could not" ++ - "\nbe parsed." ++ - "\nThe error could be located at the begining of the command" ++ - "\nwhich follows the offending one." |