Is there an app to turn a page of test into dashes and spaces?

Hello. Newbie here.


I mean something like this:

I WANDERED lonely as a cloud
That floats on high o'er vales and hills

becomes after pasting into this possibly non-existent application:

- -------- ------ -- - -----
---- ------ -- ---- ---- ----- --- -----


I would love it to exist. Please say it does and it's available for Mac.