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DateTime::Locale(3) User Contributed Perl Documentation DateTime::Locale(3)
 

DateTime::Locale - Localization support for DateTime.pm

version 1.23

  use DateTime::Locale;
  my $loc = DateTime::Locale->load('en-GB');
  print $loc->native_name, "\n", $loc->datetime_format_long, "\n";
  # but mostly just things like ...
  my $dt = DateTime->now( locale => 'fr' );
  print "Aujourd'hui le mois est " . $dt->month_name, "\n";

DateTime::Locale is primarily a factory for the various locale subclasses. It also provides some functions for getting information on all the available locales.
If you want to know what methods are available for locale objects, then please read the "DateTime::Locale::FromData" documentation.

This module provides the following class methods:

Returns the locale object for the specified locale code or name - see the "DateTime::Locale::Catalog" documentation for the list of available codes and names. The name provided may be either the English or native name.
If the requested locale is not found, a fallback search takes place to find a suitable replacement.
The fallback search order is:
  {language}-{script}-{territory}
  {language}-{script}
  {language}-{territory}-{variant}
  {language}-{territory}
  {language}
Eg. For the locale code "es-XX-UNKNOWN" the fallback search would be:
  es-XX-UNKNOWN   # Fails - no such locale
  es-XX           # Fails - no such locale
  es              # Found - the es locale is returned as the
                  # closest match to the requested id
Eg. For the locale code "es-Latn-XX" the fallback search would be:
  es-Latn-XX      # Fails - no such locale
  es-Latn         # Fails - no such locale
  es-XX           # Fails - no such locale
  es              # Found - the es locale is returned as the
                  # closest match to the requested id
If no suitable replacement is found, then an exception is thrown.
The loaded locale is cached, so that locale objects may be singletons. Calling "DateTime::Locale->register_from_data", "DateTime::Locale->add_aliases", or "DateTime::Locale->remove_alias" clears the cache.

  my @codes = DateTime::Locale->codes;
  my $codes = DateTime::Locale->codes;
Returns an unsorted list of the available locale codes, or an array reference if called in a scalar context. This list does not include aliases.

  my @names = DateTime::Locale->names;
  my $names = DateTime::Locale->names;
Returns an unsorted list of the available locale names in English, or an array reference if called in a scalar context.

  my @names = DateTime::Locale->native_names;
  my $names = DateTime::Locale->native_names;
Returns an unsorted list of the available locale names in their native language, or an array reference if called in a scalar context. All native names use UTF-8 as appropriate.

This method allows you to register a custom locale. The data for the locale is specified as a hash (or hashref) where the keys match the method names given in "DateTime::Locale::FromData".
If you just want to make some small changes on top of an existing locale you can get that locale's data by calling "$locale->locale_data".
Here is an example of making a custom locale based off of "en-US":
  my $locale = DateTime::Locale->load('en-US');
  my %data   = $locale->locale_data;
  $data{code}               = 'en-US-CUSTOM';
  $data{time_format_medium} = 'HH:mm:ss';
  DateTime::Locale->register_from_data(%data);
  # Prints 18:24:38
  say DateTime->now( locale => 'en-US-CUSTOM' )->strftime('%X');
  # Prints 6:24:38 PM
  say DateTime->now( locale => 'en-US' )->strftime('%X');
The keys that should be present in the hash are the same as the accessor methods provided by DateTime::Locale::FromData, except for the following:
The *_code methods
While you should provide a "code" key, the other methods like "language_code" and "script_code" are determined by parsing the code.
All "id" returning methods
These are aliases for the corresponding *code methods.
"prefers_24_hour_time"
This is determined by looking at the short time format to see how it formats hours,
"date_format_default" and "time_format_default"
These are the corresponding medium formats.
"datetime_format" and "datetime_format_default"
This is the same as the medium format.
"date_formats" and "time_formats"
These are calculated as needed.
"available_formats"
This should be provided as a hashref where the keys are things like "Gy" or "MMMEd" and the values are an actual format like "y G" or "E, MMM d".
"locale_data"
This is everything you pass in.

If you are running an application that does pre-forking (for example with Starman), then you should try to load all the locales that you'll need in the parent process. Locales are loaded on-demand, so loading them once in each child will waste memory that could otherwise be shared.

Please be aware that all locale data has been generated from the CLDR (Common Locale Data Repository) project locales data). The data is incomplete, and may contain errors in some locales.
When reporting errors in data, please check the primary data sources first, then where necessary report errors directly to the primary source via the CLDR bug report system. See http://unicode.org/cldr/filing_bug_reports.html for details.
Once these errors have been confirmed, please forward the error report and corrections to the DateTime mailing list, datetime@perl.org.

Richard Evans wrote the first version of DateTime::Locale, including the tools to extract the CLDR data.

DateTime::Locale::Base
datetime@perl.org mailing list
http://datetime.perl.org/

Bugs may be submitted at <https://github.com/houseabsolute/DateTime-Locale/issues>.
There is a mailing list available for users of this distribution, <mailto:datetime@perl.org>.
I am also usually active on IRC as 'autarch' on "irc://irc.perl.org".

The source code repository for DateTime-Locale can be found at <https://github.com/houseabsolute/DateTime-Locale>.

If you'd like to thank me for the work I've done on this module, please consider making a "donation" to me via PayPal. I spend a lot of free time creating free software, and would appreciate any support you'd care to offer.
Please note that I am not suggesting that you must do this in order for me to continue working on this particular software. I will continue to do so, inasmuch as I have in the past, for as long as it interests me.
Similarly, a donation made in this way will probably not make me work on this software much more, unless I get so many donations that I can consider working on free software full time (let's all have a chuckle at that together).
To donate, log into PayPal and send money to autarch@urth.org, or use the button at <http://www.urth.org/~autarch/fs-donation.html>.

Dave Rolsky <autarch@urth.org>

Karen Etheridge <ether@cpan.org>
Mohammad S Anwar <mohammad.anwar@yahoo.com>
Ryley Breiddal <rbreiddal@presinet.com>
Sergey Leschenko <Sergey.Leschenko@portaone.com>
yasu47b <nakayamayasuhiro1986@gmail.com>

This software is copyright (c) 2003 - 2018 by Dave Rolsky.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
The full text of the license can be found in the LICENSE file included with this distribution.
2018-10-18 perl v5.28.1

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