There is a keypress event handler which is good, but it seems designed so you can't both get a key code and the key string at the same time. This makes it tricky to handle 'special' keys.

I just threw together an example called "Example Keyboard Buffer" in the project zone.

It handles enter with a function, handles the delete key, and filters out tab/escape.
Much of the code is comments explaining things as well as a small scroll buffer on screen.