I've been using the `swift-mode` and the Swift REPL under Emacs to
program in Swift. Unfortunately, the Swift REPL doesn't expect a "dumb
terminal" and issues a lot of `ESC` terminal control sequences to format
its prompt nicely, e.g. `ESC [J` `ESC [1G ESC[J 1> ESC [1G 1> ESC [1G 1>
ESC [6G`. This is rather disturbing under Emacs.
Is there a way to set the Swift REPL prompt differently, similarly to
setting a Bash prompt?