Appender::Screen(3pm) User Contributed Perl DocumentationAppender::Screen(3pm)
NAME
Log::Log4perl::Appender::Screen - Log to STDOUT/STDERR
SYNOPSIS
use Log::Log4perl::Appender::Screen;
my $app = Log::Log4perl::Appender::Screen->new(
autoflush => 1,
stderr => 0,
utf8 => 1,
);
$file->log(message => "Log me\n");
DESCRIPTION
This is a simple appender for writing to STDOUT or STDERR.
The constructor "new()" takes an optional parameter "stderr":
• If set to a false value, it will log all levels to STDOUT (or, more
accurately, whichever file handle is selected via "select()",
STDOUT by default).
• If set to a hash, then any "log4p_level" with a truthy value will
dynamically use STDERR, or STDOUT otherwise.
• Otherwise, if a true value (the default setting is 1), messages
will be logged to STDERR.
# All messages/levels to STDERR
my $app = Log::Log4perl::Appender::Screen->new(
stderr => 1,
);
# Only ERROR and FATAL to STDERR (case-sensitive)
my $app = Log::Log4perl::Appender::Screen->new(
stderr => { ERROR => 1, FATAL => 1},
);
Design and implementation of this module has been greatly inspired by
Dave Rolsky's "Log::Dispatch" appender framework.
To enable printing wide utf8 characters, set the utf8 option to a true
value:
my $app = Log::Log4perl::Appender::Screen->new(
stderr => 1,
utf8 => 1,
);
This will issue the necessary binmode command to the selected output
channel (stderr/stdout).
To enable autoflush, set the "autoflush" option to a true value:
my $app = Log::Log4perl::Appender::Screen->new(
autoflush => 1,
);
This will issue the necessary autoflush command to the selected output
channel (stderr/stdout).
This is required in containers, especially when the log volume is low,
to not buffer the log messages and cause a significant delay.
LICENSE
Copyright 2002-2013 by Mike Schilli <m@perlmeister.com> and Kevin Goess
<cpan@goess.org>.
This library is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
AUTHOR
Please contribute patches to the project on Github:
http://github.com/mschilli/log4perl
Send bug reports or requests for enhancements to the authors via our
MAILING LIST (questions, bug reports, suggestions/patches):
log4perl-devel@lists.sourceforge.net
Authors (please contact them via the list above, not directly): Mike
Schilli <m@perlmeister.com>, Kevin Goess <cpan@goess.org>
Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens
Berthold, Jeremy Bopp, Hutton Davidson, Chris R. Donnelly, Matisse
Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon, Carl Franks, Dennis
Gregorovic, Andy Grundman, Paul Harrington, Alexander Hartmaier David
Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter,
Brett Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars
Thegler, David Viner, Mac Yang.
perl v5.36.0 2022-10-30 Appender::Screen(3pm)
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