This directory contains a programming example called "Lisp". It puts up a scrollable window in which you can type Lisp code. It is a good example of running Common Lisp as a child process and subclassing the Text object to be a Lisp Listener. It also shows one way to do command-line editing with both the mouse and emacs-style control keys.
For the app to work, you need to have Common Lisp built on your machine. See the file
/NextLibrary/Documentation/NeXT/RelNotes/LispNotes.wn for instructions on how to build Common Lisp.
Further documentation on this example may be forthcoming.