# elm-rut

`elm-rut` lets you handle Chilean Chilean Unique Roll Tributary. 

```elm
import Rut exposing ( format, computeDv, isValidRut, Formatter(..) )


{-| Format a rut String.
-}
format Cleared "11111111-1" == "111111111"
format Simple "11111111-1" == "11111111-1"
format ThousandsSeparated "11111111-1" == "11.111.111-1"

{-| Compute the verifier digit
-}
computeDv "39872491" == "7"


{-| Test rut validity
-}
isValidRut 6 "7588158-4" == True
```