DateTime::Locale - Localization support for DateTime.pm
version 1.33
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 the DateTime::Locale::FromData manpage documentation.
This module provides the following class methods:
Returns the locale object for the specified locale code or name - see the
the DateTime::Locale::Catalog manpage 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
the DateTime::Locale::FromData manpage.
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 the DateTime::Locale::FromData manpage, 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@perl.org mailing list
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.
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 https://www.urth.org/fs-donation.html.
Dave Rolsky <autarch@urth.org>
This software is copyright (c) 2003 - 2021 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.
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