9.4.1 Making the application handle errors

There are two classes of error an application is likely to need to handle: errors generated by the application, and errors generated by the Lisp system.

9.4.1.1 Handling errors generated by the application

9.4.1.2 Handling errors generated by the Lisp system

9.4.1.3 Providing a fallback handler for uncaught errors

LispWorks Delivery User Guide - 13 Dec 2011