FunctionPackage: top-levelToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version

do-command

Arguments: name &rest args

This function allows the execution of top-level commands from programs. It hides the method of dispatch for top-level commands, and should be the sole means of accessing top-level commands outside typing them to the top-level read-eval-print loop.

name must be a string or symbol naming a top-level command. An error is signaled if it is not. args are the arguments that are passed to the command.

For example, the form

(tpl:do-command "history" :reverse t)

will print the command history in reverse order, just like

:history :reverse t

When Lisp is starting up, information necessary or environment necessary to process many top-level commands is not available while initialization files (such as .clinit.cl, clinit.cl, and sys:siteinit.cl) are being read. Therefore, using this function to call those top-level commands from within initialization files may cause an error (perhaps an unrecoverable error). Among the commands that are known to fail are :zoom and its relatives. We recommend that you do not call any top-level commands in initialization files.

This operator is not available in Lisp images built with a minimal top level, that is built with the include-tpl argument to build-lisp-image specified nil. See Minimal top levels in building-images.htm for information on minimal top levels.

See top-level.htm for more information on the top level.


Copyright (c) 1998-2012, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 9.0. This page was not revised from the 8.2 page.
Created 2012.5.30.

ToCDocOverviewCGDocRelNotesFAQIndexPermutedIndex
Allegro CL version 9.0
Unrevised from 8.2 to 9.0.
8.2 version