Catmandu::Fix::log - Log::Any logger as fix

       To have a full control over the log messages, create a 'catmandu.yml' with a 'log4perl' section as shown
       below:

           $ cat catmandu.yml
           log4perl: |
            log4perl.category.Catmandu::Fix::log=TRACE,OUT
            log4perl.appender.OUT=Log::Log4perl::Appender::Screen
            log4perl.appender.OUT.stderr=1
            log4perl.appender.OUT.utf8=1

            log4perl.appender.OUT.layout=PatternLayout
            log4perl.appender.OUT.layout.ConversionPattern=%d [%P] - %p %l time=%r : %m%n

       Using this configuration file all logging messages are written to the screen (stderr output). With this
       configuration in place use the catmandu command with the -D option to view the logging output:

           $ echo '{}' | catmandu convert -D to YAML --fix 'log("help!")' > output.yaml 2> log.txt

       The Unix redirections '>' and '2>' can be used to write the output of the catmandu command and the
       logging in two separate files.

       This fix add debugging capabilities to fixes. To use it via the command line you need to add the '-D'
       option to your script. E.g.

         echo '{}' | catmandu convert -D to YAML --fix 'log("help!", level:WARN)'

       By default all logging messages have a level:INFO and will not be displayed unless a log4perl
       configuration is in place (see below). Using log messages without a log4perl configuration requires a log
       level of 'WARN', 'ERROR' or 'FATAL'.

       Catmandu::Fix::log - Log::Any logger as fix

       Catmandu::Fix, Catmandu::Logger , Log::log4perl

perl v5.40.0                                       2025-01-17                            Catmandu::Fix::log(3pm)

         log('test123')

         log('hello world' , level:WARN)