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module Parse (
getLines,
stripReturn,
removeEscChars,
removeQuotes,
separateBy,
isComment,
isNumber,
isName
) where
import Control.Monad( liftM )
import qualified Data.Char as Char
getLines :: FilePath -> IO [String]
getLines = liftM lines . readFile
stripReturn :: String -> String
stripReturn s = if (last s == '\r') then init s else s
removeEscChars :: String -> String
removeEscChars [] = []
removeEscChars (x:[]) = [x]
removeEscChars x = if (head x == '\\')
then (x!!1) : (removeEscChars . (drop 2) $ x)
else (head x) : (removeEscChars . tail $ x)
removeQuotes :: String -> String
removeQuotes = init . tail
separateBy :: Char -> String -> [String]
separateBy char list =
let f = (\x -> if (x == char)
then ' '
else x)
in words . (map f) $ list
isComment :: String -> Bool
isComment = (==) '#' . head
isNumber :: String -> Bool
isNumber ('0':[]) = True
isNumber ('-':ns)
| (ns /= [] && head ns /= '0') = isNumber ns
isNumber n = all (Char.isNumber) n
isName :: String -> Bool
isName s = all ((==) '"') [head s, last s]
|
