implementation module lex
import Control.Monad
-import Data.Either
-import Data.Maybe
-import Data.Map
-import Data.Func
+import Data.Either, Data.Maybe, Data.Map, Data.Func
import StdString
import StdTuple
import StdBool
import StdList
import StdChar
-import qualified Text
SingleCharTokens :: Map Char Token
SingleCharTokens = fromList [