I'm excited about this project ! I was wondering if it would be possible to also support formatting of a block of text. Why would you need that you might ask ? Well I've created a editor plugin for elm and one of the features is a repl integration. When working in a repl context in the editor, there is no file backing the editor however it would be really nice to be able to format expressions when you are repl'ing away so to speak.

Let me illustrate: