1Appender::Screen(3)   User Contributed Perl Documentation  Appender::Screen(3)
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NAME

6       Log::Log4perl::Appender::Screen - Log to STDOUT/STDERR
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SYNOPSIS

9           use Log::Log4perl::Appender::Screen;
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11           my $app = Log::Log4perl::Appender::Screen->new(
12             autoflush => 1,
13             stderr    => 0,
14             utf8      => 1,
15           );
16
17           $file->log(message => "Log me\n");
18

DESCRIPTION

20       This is a simple appender for writing to STDOUT or STDERR.
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22       The constructor "new()" takes an optional parameter "stderr":
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24       •   If set to a false value, it will log all levels to STDOUT (or, more
25           accurately, whichever file handle is selected via "select()",
26           STDOUT by default).
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28       •   If set to a hash, then any "log4p_level" with a truthy value will
29           dynamically use STDERR, or STDOUT otherwise.
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31       •   Otherwise, if a true value (the default setting is 1), messages
32           will be logged to STDERR.
33
34           # All messages/levels to STDERR
35           my $app = Log::Log4perl::Appender::Screen->new(
36               stderr  => 1,
37           );
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39           # Only ERROR and FATAL to STDERR (case-sensitive)
40           my $app = Log::Log4perl::Appender::Screen->new(
41               stderr  => { ERROR => 1, FATAL => 1},
42           );
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44       Design and implementation of this module has been greatly inspired by
45       Dave Rolsky's "Log::Dispatch" appender framework.
46
47       To enable printing wide utf8 characters, set the utf8 option to a true
48       value:
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50           my $app = Log::Log4perl::Appender::Screen->new(
51             stderr    => 1,
52             utf8      => 1,
53           );
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55       This will issue the necessary binmode command to the selected output
56       channel (stderr/stdout).
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58       To enable autoflush, set the "autoflush" option to a true value:
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60           my $app = Log::Log4perl::Appender::Screen->new(
61             autoflush => 1,
62           );
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64       This will issue the necessary autoflush command to the selected output
65       channel (stderr/stdout).
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67       This is required in containers, especially when the log volume is low,
68       to not buffer the log messages and cause a significant delay.
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LICENSE

71       Copyright 2002-2013 by Mike Schilli <m@perlmeister.com> and Kevin Goess
72       <cpan@goess.org>.
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74       This library is free software; you can redistribute it and/or modify it
75       under the same terms as Perl itself.
76

AUTHOR

78       Please contribute patches to the project on Github:
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80           http://github.com/mschilli/log4perl
81
82       Send bug reports or requests for enhancements to the authors via our
83
84       MAILING LIST (questions, bug reports, suggestions/patches):
85       log4perl-devel@lists.sourceforge.net
86
87       Authors (please contact them via the list above, not directly): Mike
88       Schilli <m@perlmeister.com>, Kevin Goess <cpan@goess.org>
89
90       Contributors (in alphabetical order): Ateeq Altaf, Cory Bennett, Jens
91       Berthold, Jeremy Bopp, Hutton Davidson, Chris R. Donnelly, Matisse
92       Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon, Carl Franks, Dennis
93       Gregorovic, Andy Grundman, Paul Harrington, Alexander Hartmaier  David
94       Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter,
95       Brett Rann, Peter Rabbitson, Erik Selberg, Aaron Straup Cope, Lars
96       Thegler, David Viner, Mac Yang.
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100perl v5.36.0                      2022-10-24               Appender::Screen(3)
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