21 The Listener

The Listener is a tool that lets you evaluate Common Lisp expressions interactively and immediately see the results. It is useful for executing short pieces of Common Lisp, and extensive use is made of it in the examples given in this manual. This chapter describes all the facilities of the Listener.

21.1 The basic features of a Listener

21.2 Evaluating simple forms

21.3 Re-evaluating forms

21.4 Interrupting evaluation

21.5 The History menu

21.6 The Expression menu

21.7 The Values submenu

21.8 The Debug menu

21.9 Execute mode

21.10 Setting Listener preferences

21.11 Running Editor forms in the Listener

21.12 Switching to and from other tools

21.13 Help with editing in the Listener