regex-deriv-0.0.1: Text/Regex/Deriv/Word.lhs

> module Text.Regex.Deriv.Word where

> -- | the Word type class
> class Word a where
>     uncons :: a -> Maybe (Char,a)
>     take :: Int -> a -> a
>     drop :: Int -> a -> a
>     empty :: a
>     reverse :: a -> a
>     append :: a -> a -> a
>     length :: a -> Int