Skip to Main Content
Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

Client Callback Methods

The following “virtual” methods are called by the API at appropriate points. The API provides only empty versions of these methods by default, but they can be defined by the client as needed.

CLIENT->init( )

Called after debug API initializes itself.

CLIENT->prestop([ STRING ])

Usually inherited from DB package. If no arguments are passed, returns the prestop action string.

CLIENT->stop( )

Called when execution stops, with the filename and line number as arguments.

CLIENT->idle( )

Called while stopped, e.g., in a client event loop.

CLIENT->poststop([ STRING ])

Usually inherited from DB package. If no arguments are passed, returns the poststop action string.

CLIENT->evalcode( STRING )

Usually inherited from DB package. Asks for a STRING to be evaled in executing code context.

CLIENT->cleanup( )

Called just before exit.

CLIENT->output( LIST )

Called when API must show a message (warnings, errors etc.).

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Perl by Example, Fourth Edition

Perl by Example, Fourth Edition

Ellie Quigley
Perl Cookbook, 2nd Edition

Perl Cookbook, 2nd Edition

Tom Christiansen, Nathan Torkington
Perl in a Nutshell

Perl in a Nutshell

Nathan Patwardhan, Ellen Siever, Stephen Spainhour
Learning Perl, 7th Edition

Learning Perl, 7th Edition

Randal L. Schwartz, brian d foy, Tom Phoenix

Publisher Resources

ISBN: 0596002416Errata Page