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$SPEC{country_code2code} = {
    v => 1.1,
    summary => 'Convert country code (alpha2 <-> alpha3)',
    args => {
        code => {
            schema => 'country::code',
            req => 1,
            pos => 0,
        },
    },
};
sub country_code2code {
    require Locale::Codes::Country;

    my %args = @_;
    my $code = $args{code};

    my $code2;
    if (length($code) == 2) {
        $code2 = Locale::Codes::Country::country_code2code($code, 'alpha-2', 'alpha-3');
    } elsif (length($code) == 3) {
        $code2 = Locale::Codes::Country::country_code2code($code, 'alpha-3', 'alpha-2');
    } else {
        return [400, "Please specify alpha-2 or alpha-3 code"];
    }
    return [404, "Unknown or non-unique code '$code'"] unless defined $code2;
    [200, "OK", $code2];
}

$SPEC{language_code2code} = {
    v => 1.1,
    summary => 'Convert language code (alpha2 <-> alpha3)',
    args => {
        code => {
            schema => 'language::code',
            req => 1,
            pos => 0,
        },
    },
};
sub language_code2code {
    require Locale::Codes::Language;

    my %args = @_;
    my $code = $args{code};

    my $code2;
    if (length($code) == 2) {
        $code2 = Locale::Codes::Language::language_code2code($code, 'alpha-2', 'alpha-3');
    } elsif (length($code) == 3) {
        $code2 = Locale::Codes::Language::language_code2code($code, 'alpha-3', 'alpha-2');
    } else {
        return [400, "Please specify alpha-2 or alpha-3 code"];
    }
    return [404, "Unknown or non-unique code '$code'"] unless defined $code2;
    [200, "OK", $code2];
}

1;
# ABSTRACT: Utilities related to locale codes

__END__

=pod

=encoding UTF-8

=head1 NAME

App::LocaleCodesUtils - Utilities related to locale codes

=head1 VERSION

This document describes version 0.004 of App::LocaleCodesUtils (from Perl distribution App-LocaleCodesUtils), released on 2023-08-06.

=head1 DESCRIPTION

This distributions provides the following command-line utilities:

=over

=item * L<country-code2code>

=item * L<language-code2code>

=item * L<list-countries>

=item * L<list-currencies>

=item * L<list-languages>

=item * L<list-scripts>

=back

=head1 FUNCTIONS


=head2 country_code2code

Usage:

 country_code2code(%args) -> [$status_code, $reason, $payload, \%result_meta]

Convert country code (alpha2 <-E<gt> alpha3).

This function is not exported.

Arguments ('*' denotes required arguments):

=over 4

=item * B<code>* => I<country::code>

(No description)


=back

Returns an enveloped result (an array).

First element ($status_code) is an integer containing HTTP-like status code
(200 means OK, 4xx caller error, 5xx function error). Second element
($reason) is a string containing error message, or something like "OK" if status is
200. Third element ($payload) is the actual result, but usually not present when enveloped result is an error response ($status_code is not 2xx). Fourth
element (%result_meta) is called result metadata and is optional, a hash
that contains extra information, much like how HTTP response headers provide additional metadata.

Return value:  (any)