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Log::Report::Domain(3) User Contributed Perl Documentation Log::Report::Domain(3)

Log::Report::Domain - administer one text-domain

 Log::Report::Domain
   is a Log::Report::Minimal::Domain

 Log::Report::Domain is extended by
   Log::Report::Template::Textdomain

 # internal usage
 use Log::Report::Domain;
 my $domain = Log::Report::Domain->new(name => $name);

 # find a ::Domain object
 use Log::Report 'my-domain';
 my $domain = textdomain 'my-domain'; # find domain config
 my $domain = textdomain;             # config of this package

 # explicit domain configuration
 package My::Package;
 use Log::Report 'my-domain';         # set textdomain for package

 textdomain $name, %configure;        # set config, once per program
 (textdomain $name)->configure(%configure); # same
 textdomain->configure(%configure);   # same if current package in $name

 # implicit domain configuration
 package My::Package;
 use Log::Report 'my-domain', %configure;
 
 # external file for configuration (perl or json format)
 use Log::Report 'my-domain', config => $filename;

 use Log::Report 'my-domain';
 textdomain->configure(config => $filename);

Log::Report can handle multiple sets of packages at the same time: in the usual case a program consists of more than one software distribution, each containing a number of packages. Each module in an application belongs to one of these sets, by default the domain set 'default'.

For "Log::Report", those packags sets are differentiated via the text-domain value in the "use" statement:

  use Log::Report 'my-domain';

There are many things you can configure per (text)domain. This is not only related to translations, but also -for instance- for text formatting configuration. The administration for the configuration is managed in this package.

Extends "DESCRIPTION" in Log::Report::Minimal::Domain.

Extends "METHODS" in Log::Report::Minimal::Domain.

Extends "Constructors" in Log::Report::Minimal::Domain.
Log::Report::Domain->new(%options)
Create a new Domain object.

 -Option--Defined in                  --Default
  name    Log::Report::Minimal::Domain  <required>
    
name => STRING

Extends "Attributes" in Log::Report::Minimal::Domain.
$obj->configure(%options)
The import is automatically called when the package is compiled. For all but one packages in your distribution, it will only contain the name of the DOMAIN. For one package, it will contain configuration information. These %options are used for all packages which use the same DOMAIN. See chapter "Configuring" below.

 -Option         --Defined in                  --Default
  config                                         undef
  context_rules                                  undef
  formatter                                      PRINTI
  native_language                                'en_US'
  translator                                     created internally
  where            Log::Report::Minimal::Domain  <required>
    
config => FILENAME
Read the settings from the file. The parameters found in the file are used as default for the parameters above. This parameter is especially useful for the "context_rules", which need to be shared between the running application and xgettext-perl. See readConfig()
context_rules => HASH|OBJECT
When rules are provided, the translator will use the "msgctxt" fields as provided by PO-files (gettext). This parameter is used to initialize a Log::Report::Translator::Context helper object.
formatter => CODE|HASH|'PRINTI'
Selects the formatter used for the errors messages. The default is "PRINTI", which will use String::Print::printi(): interpolation with curly braces around the variable names.
native_language => CODESET
This is the language which you have used to write the translatable and the non-translatable messages in. In case no translation is needed, you still wish the system error messages to be in the same language as the report. Of course, each textdomain can define its own.
translator => Log::Report::Translator|HASH
Set the object which will do the translations for this domain.
where => ARRAY
$obj->contextRules()
$obj->defaultContext()
Returns the current default translation context settings as HASH. You should not modify the content of that HASH: change it by called setContext() or updateContext().
$obj->isConfigured()
Inherited, see "Attributes" in Log::Report::Minimal::Domain
$obj->name()
Inherited, see "Attributes" in Log::Report::Minimal::Domain
$obj->nativeLanguage()
$obj->readConfig($filename)
Log::Report::Domain->readConfig($filename)
Helper method, which simply parses the content $filename into a HASH to be used as parameters to configure(). The filename must end on '.pl', to indicate that it uses perl syntax (can be processed with Perl's "do" command) or end on '.json'. See also chapter "Configuring" below.

Currently, this file can be in Perl native format (when ending on ".pl") or JSON (when it ends with ".json"). Various modules may explain parts of what can be found in these files, for instance Log::Report::Translator::Context.

$obj->setContext(STRING|HASH|ARRAY|PAIRS)
Temporary set the default translation context for messages. This is used when the message is created without a "_context" parameter. The context can be retrieved with defaultContext().

Contexts are totally ignored then there are no "context_rules". When you do not wish to change settings, you may simply provide a HASH.

example:

   use Log::Report 'my-domain', context_rules => {};
    
$obj->translator()
$obj->updateContext(STRING|HASH|ARRAY|PAIRS)
[1.10] Make changes and additions to the active context (see setContext()).

Extends "Action" in Log::Report::Minimal::Domain.
$obj->interpolate( $msgid, [$args] )
Inherited, see "Action" in Log::Report::Minimal::Domain
$obj->translate($message, $language)
Translate the $message into the $language.

Configuration of a domain can happen in many ways: either explicitly or implicitly. The explicit form:

   package My::Package;
   use Log::Report 'my-domain';

   textdomain 'my-domain', %configuration;
   textdomain->configure(%configuration);
   textdomain->configure(\%configuration);

   textdomain->configure(conf => $filename);

The implicit form is (no variables possible, only constants!)

   package My::Package;
   use Log::Report 'my-domain', %configuration;
   use Log::Report 'my-domain', conf => '/filename';

You can only configure your domain in one place in your program. The textdomain setup is then used for all packages in the same domain.

This also works for Log::Report::Optional, which is a dressed-down version of Log::Report.

configuring your own formatter

[0.91] The "PRINTI" is a special constants for configure(formatter), and will use String::Print function "printi()", with the standard tricks.

  textdomain 'some-domain'
    formatter =>
      { class     => 'String::Print'    # default
      , method    => 'sprinti'          # default
      , %options    # constructor options for the class
      );

When you want your own formatter, or configuration of "String::Print", you need to pass a CODE. Be aware that you may loose magic added by Log::Report and other layers, like Log::Report::Template:

  textdomain 'some-domain'
    , formatter => \&my_formatter;

configuring global values

Say, you log for a (Dancer) webserver, where you wish to include the website name in some of the log lines. For this, (ab)use the translation context:

  ### first enabled translation contexts
  use Log::Report 'my-domain', context_rules => {};
  # or
  use Log::Report 'my-domain';
  textdomain->configure(context_rules => {});
  # or
  textdomain 'my-domain'
    , content_rules => {};
  
  ### every time you start working for a different virtual host
  (textdomain 'my-domain')->setContext(host => $host);

  ### now you can use that in your code
  package My::Package;
  use Log::Report 'my-domain';
  error __x"in {_context.host} not logged-in {user}", user => $username;

This module is part of Log-Report distribution version 1.33, built on July 17, 2021. Website: http://perl.overmeer.net/CPAN/

Copyrights 2007-2021 by [Mark Overmeer <markov@cpan.org>]. For other contributors see ChangeLog.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://dev.perl.org/licenses/

2021-07-17 perl v5.32.1

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