print-escape

Arguments: configuration

Use of this accessor is deprecated. Programmers should bind or set the associated global variable (*print-escape* in this case) directly. The default methods simply return or set the value of that global variable.

Configurations contain information about the Lisp environment. The current configuration is the value of (configuration *system*) (see configuration and *system*).

Among the information stored is the desired value for many standard global variables. These globals are set to these values when the system is initialized. Changing a value in the configuration changes the current value of the global. Accessors are typically named with a symbol named the same as the global variable but without the surrounding stars (if any).

This function accesses the value of the print-escape property, which corresponds to the *print-escape* global variable. This variable controls whether objects are printed with escapes (which allows them to be read back correctly). For example, the character #\a prints as `a' or as `#\a' as *print-escape* is nil or t:

> (let ((*print-escape* nil))
     (write #\a) (terpri)
     (setq *print-escape* t)
     (write #\a)
     nil)
a
#\a
nil
> 

print-escape is a property of the configuration class.

You can examine and change configuration options with the inspector. Choose Tools | Inspect System Data | Configuration Options.

Copyright (c) 1998-2002, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 6.2. This page has had moderate revisions compared to the 6.1 page.
Created 2002.2.26.