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.\" ========================================================================
.\"
.IX Title "Log::ger::Format::MultilevelLog 3pm"
.TH Log::ger::Format::MultilevelLog 3pm "2022-06-10" "perl v5.26.3" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.SH "NAME"
Log::ger::Format::MultilevelLog \- Create a log($LEVEL, ...) subroutine/method
.SH "VERSION"
.IX Header "VERSION"
version 0.040
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
To use for the current package:
.PP
.Vb 6
\& use Log::ger::Format MultilevelLog => (
\&     # sub_name => \*(Aqlog_it\*(Aq,    # optional, defaults to \*(Aqlog\*(Aq
\&     # method_name => \*(Aqlog_it\*(Aq, # optional, defaults to \*(Aqlog\*(Aq
\&     # exclusive => 1,          # optional, defaults to 0
\& );
\& use Log::ger;
\&
\& log(\*(Aqwarn\*(Aq, \*(AqThis is a warning\*(Aq);
\& log(\*(Aqdebug\*(Aq, \*(AqThis is a debug, data is %s\*(Aq, $data);
\&
\& log_warn "This is also a warning"; # still available, unless you set exclusive to 1
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
The Log::ger default is to create separate \f(CW\*(C`log_LEVEL\*(C'\fR subroutine (or \f(CW\*(C`LEVEL\*(C'\fR
methods) for each level, e.g. \f(CW\*(C`log_trace\*(C'\fR subroutine (or \f(CW\*(C`trace\*(C'\fR method),
\&\f(CW\*(C`log_warn\*(C'\fR (or \f(CW\*(C`warn\*(C'\fR), and so on. But sometimes you might want a log routine
that takes \f(CW$level\fR as the first argument. That is, instead of:
.PP
.Vb 1
\& log_warn(\*(Aqblah ...\*(Aq);
.Ve
.PP
or:
.PP
.Vb 1
\& $log\->debug(\*(AqBlah: %s\*(Aq, $data);
.Ve
.PP
you prefer:
.PP
.Vb 1
\& log(\*(Aqwarn\*(Aq, \*(Aqblah ...\*(Aq);
.Ve
.PP
or:
.PP
.Vb 1
\& $log\->log(\*(Aqdebug\*(Aq, \*(AqBlah: %s\*(Aq, $data);
.Ve
.PP
This format plugin can create such log routine for you.
.PP
Note: the multilevel log is slightly slower because of the extra argument and
additional string level \-> numeric level conversion. See benchmarks in
Bencher::Scenarios::LogGer.
.PP
Note: the individual separate \f(CW\*(C`log_LEVEL\*(C'\fR subroutines (or \f(CW\*(C`LEVEL\*(C'\fR methods) are
still installed, unless you specify configuration \*(L"exclusive\*(R" to true.
.SH "CONFIGURATION"
.IX Header "CONFIGURATION"
.SS "sub_name"
.IX Subsection "sub_name"
String. Defaults to \f(CW\*(C`log\*(C'\fR.
.SS "method_name"
.IX Subsection "method_name"
String. Defaults to \f(CW\*(C`log\*(C'\fR.
.SS "exclusive"
.IX Subsection "exclusive"
Boolean. If set to true, will block the generation of the default \f(CW\*(C`log_LEVEL\*(C'\fR
subroutines or \f(CW\*(C`LEVEL\*(C'\fR methods (e.g. \f(CW\*(C`log_warn\*(C'\fR, \f(CW\*(C`trace\*(C'\fR, ...).
.SH "SEE ALSO"
.IX Header "SEE ALSO"
Log::ger::Format::HashArgs
.SH "AUTHOR"
.IX Header "AUTHOR"
perlancar <perlancar@cpan.org>
.SH "COPYRIGHT AND LICENSE"
.IX Header "COPYRIGHT AND LICENSE"
This software is copyright (c) 2022, 2020, 2019, 2018, 2017 by perlancar <perlancar@cpan.org>.
.PP
This is free software; you can redistribute it and/or modify it under
the same terms as the Perl 5 programming language system itself.