diff options
Diffstat (limited to 'src/Xmobar/Run/Template.hs')
-rw-r--r-- | src/Xmobar/Run/Template.hs | 57 |
1 files changed, 35 insertions, 22 deletions
diff --git a/src/Xmobar/Run/Template.hs b/src/Xmobar/Run/Template.hs index 5bada89..a544724 100644 --- a/src/Xmobar/Run/Template.hs +++ b/src/Xmobar/Run/Template.hs @@ -15,51 +15,64 @@ ------------------------------------------------------------------------------ -module Xmobar.Run.Template(parseCommands) where +module Xmobar.Run.Template(parseTemplate, splitTemplate) where import qualified Data.Map as Map import Text.ParserCombinators.Parsec import Xmobar.Run.Commands import Xmobar.Run.Runnable -import Xmobar.Config + +defaultAlign :: String +defaultAlign = "}{" + +allTillSep :: String -> Parser String +allTillSep = many . noneOf -- | Parses the output template string -templateStringParser :: Config -> Parser (String,String,String) -templateStringParser c = do - s <- allTillSep c - com <- templateCommandParser c - ss <- allTillSep c +templateStringParser :: String -> Parser (String,String,String) +templateStringParser sepChar = do + s <- allTillSep sepChar + com <- templateCommandParser sepChar + ss <- allTillSep sepChar return (com, s, ss) -- | Parses the command part of the template string -templateCommandParser :: Config -> Parser String -templateCommandParser c = - let chr = char . head . sepChar - in between (chr c) (chr c) (allTillSep c) +templateCommandParser :: String -> Parser String +templateCommandParser sepChar = + let chr = char (head sepChar) in between chr chr (allTillSep sepChar) -- | Combines the template parsers -templateParser :: Config -> Parser [(String,String,String)] -templateParser = many . templateStringParser +templateParser :: String -> Parser [(String,String,String)] +templateParser s = many $ templateStringParser s -- | Actually runs the template parsers -parseCommands :: Config -> String -> IO [(Runnable,String,String)] -parseCommands c s = - do str <- case parse (templateParser c) "" s of +parseTemplate :: [Runnable] -> String -> String -> IO [(Runnable,String,String)] +parseTemplate c sepChar s = + do str <- case parse (templateParser sepChar) "" s of Left _ -> return [("", s, "")] Right x -> return x - let cl = map alias (commands c) - m = Map.fromList $ zip cl (commands c) + let cl = map alias c + m = Map.fromList $ zip cl c return $ combine c m str -- | Given a finite "Map" and a parsed template produce the resulting -- output string. -combine :: Config -> Map.Map String Runnable - -> [(String, String, String)] -> [(Runnable,String,String)] +combine :: [Runnable] -> Map.Map String Runnable -> [(String, String, String)] + -> [(Runnable,String,String)] combine _ _ [] = [] combine c m ((ts,s,ss):xs) = (com, s, ss) : combine c m xs where com = Map.findWithDefault dflt ts m dflt = Run $ Com ts [] [] 10 -allTillSep :: Config -> Parser String -allTillSep = many . noneOf . sepChar +-- | Given an two-char alignment separator and a template string, +-- splits it into its segments, that can then be parsed via parseCommands +splitTemplate :: String -> String -> [String] +splitTemplate alignSep template = + case break (==l) template of + (le,_:re) -> case break (==r) re of + (ce,_:ri) -> [le, ce, ri] + _ -> def + _ -> def + where [l, r] = if (length alignSep == 2) then alignSep else defaultAlign + def = [template, "", ""] |