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NAME
    Locale::Codes - a distribution of modules to handle locale codes

DESCRIPTION
    Locale-Codes is a distribution containing a set of modules. The modules
    each deal with different types of codes which identify parts of the
    locale including languages, countries, currency, etc.

    Currently, the following modules are included:

    Locale::Codes::Country, Locale::Country
        This includes support for country codes (such as those listed in
        ISO-3166) to specify the country.

        Because this module was originally distributed as Locale::Country,
        it is also available under that name.

    Locale::Codes::Language, Locale::Language
        This includes support for language codes (such as those listed in
        ISO-639) to specify the language.

        Because this module was originally distributed as Locale::Language,
        it is also available under that name.

    Locale::Codes::Currency, Locale::Currency
        This includes support for currency codes (such as those listed in
        ISO-4217) to specify the currency.

        Because this module was originally distributed as Locale::Currency,
        it is also available under that name.

    Locale::Codes::Script, Locale::Script
        This includes support for script codes (such as those listed in
        ISO-15924) to specify the script.

        Because this module was originally distributed as Locale::Script, it
        is also available under that name.

    Locale::Codes::LangExt
        This includes support for language extension codes (such as those
        listed in the IANA language registry) to specify the language
        extension.

    Locale::Codes::LangVar
        This includes support for language variation codes (such as those
        listed in the IANA language registry) to specify the language
        variation.

    Locale::Codes::LangFam
        This includes support for language family codes (such as those
        listed in ISO 639-5) to specify families of languages.

    Each module can support an arbitrary number of code sets, and it is not
    required that the relationship between these code sets be one-to-one.
    For example, the Locale::Codes::Country module supports code sets from
    ISO-3166 and the FIPS 10 standard, and they do not break the world down
    into exactly the same sets of countries. This does not cause any problem
    (though converting codes from ISO-3166 to FIPS or back will not work
    except for countries that are one-to-one).

    All data in all of these modules comes directly from the original
    standards (or as close to direct as possible), so it should be
    up-to-date at the time of release.

    I plan on releasing a new version several times a year to incorporate
    any changes made in the standards. However, I don't always know about
    changes that occur, so if any of the standards change, and you want a
    new release sooner, just email me and I'll get one out.

    In addition to the modules above, there are a number of support modules
    included in the distribution including:

    Locale::Codes
    Locale::Codes::Constants
    Locale::Codes::Country_codes
    Locale::Codes::Language_codes
    Locale::Codes::Currency_codes
    Locale::Codes::Script_codes
    Locale::Codes::LangExt_codes
    Locale::Codes::LangVar_codes
    Locale::Codes::LangFam_codes

    These modules are not intended to be used by programmers. They contain
    functions or data that are used by the modules listed above.

NEW CODE SETS
    I'm always open to suggestions for new code sets.

    In order for me to add a code set, I want the following criteria to be
    met:

    General-use code set
        If a code set is not general use, I'm not likely to spend the time
        to add and support it.

    An official source of data
        I require an official (or at least, a NEARLY official) source where
        I can get the data on a regular basis.

        Ideally, I'd only get data from an official source, but sometimes
        that is not possible. For example the ISO standards are not
        typically available for free, so I may have to get some of that data
        from alternate sources that I'm confident are getting their data
        from the official source. However, I will always be hesitant to
        accept a non-official source.

        As an example, I used to get some country data from the CIA World
        Factbook. Given the nature of the source, I'm sure they're updating
        data from the official sources and I consider it "nearly" official.
        However, even in this case, I found that they were adding codes that
        were not part of the standard, so I have stopped using them as a
        source.

        There are many 3rd party sites which maintain lists (many of which
        are actually in a more convenient form than the official sites).
        Unfortunately, I will reject most of them since I have no feel for
        how "official" they are.

    A free source of the data
        Obviously, the data must be free-of-charge. I'm not interested in
        paying for the data (and I'm not interested in the overhead of
        having someone else pay for the data for me).

    A reliable source of data
        The source of data must come from a source that I can reasonably
        expect to exist for the foreseeable future since I will be extremely
        reluctant to drop support for a data set once it's included.

        I am also reluctant to accept data sent to me by an individual.
        Although I appreciate the offer, it is simply not practical to
        consider an individual contribution as a reliable source of data.
        The source should be an official agency of some sort.

    These requirements are open to discussion. If you have a code set you'd
    like to see added, but which may not meet all of the above requirements,
    feel free to email me and we'll discuss it. Depending on circumstances,
    I may be willing to waive some of these criteria.

COMMON ALIASES
    As of version 2.00, the modules supported common variants of names.

    For example, Locale::Country supports variant names for countries, and a
    few of the most common ones are included in the data. The country code
    for "United States" is "us", so:

       country2code('United States');
          => "us"

    Now the following will also return 'us':

       country2code('United States of America');
       country2code('USA');

    Any number of common aliases may be included in the data, in addition to
    the names that come directly from the standards. If you have a common
    alias for a country, language, or any other of the types of codes, let
    me know and I'll add it, with some restrictions.

    For example, the country name "North Korea" never appeared in any of the
    official sources (instead, it was "Korea, North" or "Korea, Democratic
    People's Republic of". I would honor a request to add an alias "North
    Korea" since that's a very common way to specify the country (please
    don't request this... I've already added it).

    On the other hand, a request to add Zaire as an alias for "Congo, The
    Democratic Republic of" will not be honored. The country's official name
    is no longer Zaire, so adding it as an alias violates the standard.
    Zaire was kept as an alias in versions prior to 3.00, but it has been
    removed. Other aliases (if any) which no longer appear in any standard
    (and which are not common variations of the name in the standards) have
    also been removed.

DEPRECATED CODES
    Occasionally, a code is deprecated, but it may still be desirable to
    have access to it.

    Although there is no way to see every code that has ever existed and
    been deprecated (since most codesets do not have that information
    available), as of version 3.20, every code which has ever been included
    in these modules can be referenced.

    For more information, refer to the documentation on the code2XXX,
    XXX2code, all_XXX_codes, and all_XXX_names function in the
    Locale::Codes::API documentation.

SEE ALSO
    Locale::Codes::API
        The list of functions available in each of the modules listed below.
        The APIs for each module are exactly identical.

    Locale::Codes::Country
        Codes for identification of countries.

    Locale::Codes::Language
        Codes for identification of languages.

    Locale::Codes::Script
        Codes for identification of scripts.

    Locale::Codes::Currency
        Codes for identification of currencies and funds.

    Locale::Codes::LangExt
        Codes for identification of language extensions.

    Locale::Codes::LangVar
        Codes for identification of language variations.

    Locale::Codes::LangFam
        Codes for identification of language families.

    Locale::Codes::Changes
        A history of changes made to this distribution.

AUTHOR
    Locale::Country and Locale::Language were originally written by Neil
    Bowers at the Canon Research Centre Europe (CRE). They maintained the
    distribution from 1997 to 2001.

    Locale::Currency was originally written by Michael Hennecke and was
    modified by Neil Bowers for inclusion in the distribution.

    From 2001 to 2004, maintenance was continued by Neil Bowers. He modified
    Locale::Currency for inclusion in the distribution. He also added
    Locale::Constants and Locale::Script.

    From 2004-2009, the module was unmaintained.

    In 2010, maintenance was taken over by Sullivan Beck (sbeck@cpan.org)
    with Neil Bower's permission. All problems or comments should be sent
    there. Alternately, problems can be reported using the perl problem
    tracker at:

       https://rt.cpan.org/Dist/Display.html?Queue=Locale-Codes

COPYRIGHT
       Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
       Copyright (c) 2001      Michael Hennecke (Locale::Currency)
       Copyright (c) 2001-2010 Neil Bowers
       Copyright (c) 2010-2013 Sullivan Beck

    This module is free software; you can redistribute it and/or modify it
    under the same terms as Perl itself.
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