unit class CLDR::List is rw;

constant @placeholders = <{0} {1}>;
constant %patterns = { # TODO: update with full CLDR data
     root => { middle => '{0}, {1}', 2 => '{0}, {1}' },
     ar => { middle => '{0}، {1}', end => '{0}، و {1}', 2 => '{0} و {1}' },
     ca => { 2 => '{0} i {1}' },
     cs => { 2 => '{0} a {1}' },
     da => { 2 => '{0} og {1}' },
     de => { 2 => '{0} und {1}' },
     el => { 2 => '{0} και {1}' },
     en => { end => '{0}, and {1}', 2 => '{0} and {1}' },
     'en-AU' => { 2 => '{0} and {1}' },
     'en-CA' => { end => '{0}, and {1}', 2 => '{0} and {1}' },
     'en-GB' => { 2 => '{0} and {1}' },
     'en-HK' => { 2 => '{0} and {1}' },
     'en-IN' => { 2 => '{0} and {1}' },
     es => { 2 => '{0} y {1}' },
     fi => { 2 => '{0} ja {1}' },
     fr => { 2 => '{0} et {1}' },
     he => { 2 => '{0} ו{1}' },
     hi => { end => '{0}, और {1}', 2 => '{0} और {1}' },
     hr => { 2 => '{0} i {1}' },
     hu => { 2 => '{0} és {1}' },
     it => { end => '{0}, e {1}', 2 => '{0} e {1}' },
     ja => { middle => '{0}、{1}', 2 => '{0}、{1}' },
     ko => { 2 => '{0} 및 {1}' },
     nb => { 2 => '{0} og {1}' },
     nl => { 2 => '{0} en {1}' },
     pl => { 2 => '{0} i {1}' },
     pt => { 2 => '{0} e {1}' },
     'pt-PT' => { 2 => '{0} e {1}' },
     ro => { 2 => '{0} și {1}' },
     ru => { 2 => '{0} и {1}' },
     sk => { 2 => '{0} a {1}' },
     sl => { 2 => '{0} in {1}' },
     sr => { 2 => '{0} и {1}' },
     sv => { 2 => '{0} och {1}' },
     th => { middle => '{0} {1}', end => '{0} และ{1}', 2 => '{0}และ{1}' },
     tr => { 2 => '{0} ve {1}' },
     vi => { 2 => '{0} và {1}' },
     uk => { 2 => '{0} та {1}' },
     zh => { middle => '{0}、{1}', 2 => '{0}和{1}' },
     'zh-Hant' => { middle => '{0}、{1}', 2 => '{0}和{1}' },
};

# TODO: support type varients
# TODO: allow setting default locale?
has $.locale = 'root';
has $!previous-locale;
has %!pattern;

method format (*@list) {
    self!update-pattern;

    return do given @list {
        when 0 { '' }
        when 1 { ~@list[0] }
        when 2 { %!pattern<2>.trans(@placeholders => @list) }
        when * {
            my $format = %!pattern<end>.trans(
                @placeholders => @list[*-2,*-1]
            );

            if (* > 3) {
                for @list[1..*-3] -> $element {
                    $format = %!pattern<middle>.trans(
                        @placeholders => ($element, $format)
                    );
                }
            }

            %!pattern<start>.trans(
                @placeholders => (@list[0], $format)
            );
        }
    }
}

# TODO: does Perl 6 have attribute triggers like Moose?
method !update-pattern {
    return if $!previous-locale && $!previous-locale eq $!locale;

    # TODO: robust locale tag handling with fallbacks
    %!pattern = %patterns{$.locale} || %patterns<root>;
    %!pattern<middle> //= %patterns<root><middle>;
    %!pattern<start>  //= %!pattern<middle>;
    %!pattern<end>    //= %!pattern<2>;
    $!previous-locale = $.locale;
}



head

CLDR::List - Localized list formatters using the Unicode CLDR


my $list  = CLDR::List.new(locale => 'en');
my @fruit = <apples oranges bananas>;


say $list.format(@fruit);      # apples, oranges, and bananas


$list.locale = 'en-GB';        # British English
say $list.format(@fruit);      # apples, oranges and bananas


$list.locale = 'zh-Hant';      # Traditional Chinese
say $list.format('１'..'４');  # １、２、３和４


Localized list formatters using the Unicode CLDR.


item

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


root

README

React

=begin React :component<HeaderCol> :id<menu> 
=para L<Documentation|/doc/introduction>
=para L<Modules| /mods>
=para L<Examples| file:../examples/index.podlite>
=para L<Download |file:../download/index.podlite>
=para L<About|file:../about/index.podlite>
=para 🔍 K<⌘K>/K<ctrl-K>
=end React


=begin React :component<HeaderCol> :id<footer>  
=begin nested :!nested
=item1 B<Language>
    =item2 L<Get started|file:../getting-started/getting-started.podlite>
    =item2 L<Why Raku?|/doc/language/faq#Why-should-I-learn-Raku-What's-so-great-about-it>
    =item2 L<Try Raku|https://glot.io/new/raku>
    =item2 L<Raku cheat sheet|https://github.com/Raku/mu/blob/master/docs/Perl6/Cheatsheet/cheatsheet.txt>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<Raku on Exercism|https://exercism.org/tracks/raku>
    =item2 L<Wikipedia|https://en.wikipedia.org/wiki/Raku_(programming_language)>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=end nested
=begin nested :!nested

=item1 B<L<Documentation|/doc>>
    =item2 L<Getting started, Migration guides from other languages, & Tutorials | file:../doc/introduction.podlite>
    =item2 L<Language References|file:../doc/reference.podlite>
    =item2 L<Type Reference| file:../doc/types.podlite>
    =item2 L<Miscellaneous| file:../doc/miscellaneous.podlite>
    =item2 L<FAQs (Frequently Asked Questions)|/doc/language/faq>
    =item2 L<Community|/doc/language/community>
    =item2 L<The list of all documents|file:../doc/index.podlite>

=item1 B<Resources>
    =item2 L<The Raku Guide|https://raku.guide/>
    =item2 L<Books |https://perl6book.com/>
    =item2 L<Rosetta Code | https://www.raku.org/community/rosettacode>

=end nested
=begin nested :!nested

=item1 B<Resoures>
    =item2 L<Download | file:../download/index.podlite>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=item1 B<Learning>
    =item2 L<The Raku Guide|https://raku.guide/>
    =item2 L<Wikibook |https://en.wikibooks.org/wiki/Raku_Programming>
    =item2 L<Books |https://perl6book.com/>
    =item2 L<Rosetta Code | https://www.raku.org/community/rosettacode>
    =item2 L<Learn Raku in Y minutes|https://learnxinyminutes.com/docs/raku/>
    =item2 L<Golfing |https://github.com/AlexDaniel/raku-golf-cheatsheet>
=end nested
=begin nested :!nested

=item1 B<Explore>
    =item2 L<Raku Blog Aggregator|https://planet.raku.org/>
    =item2 L<Rakudo Weekly|https://rakudoweekly.blog/>
    =item2 L<The Weekly Challenge |https://perlweeklychallenge.org/>
    =item2 L<Raku Advent Calendar|https://raku-advent.blog/>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>
    =item2 L<empty|#>

=end nested
=end React


=begin React :component<CookieConsent> :id<CookieConsent> :buttonCaption("Got it!")
=para
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=end React


List

NAME

SYNOPSIS

DESCRIPTION

Attributes

Methods

SEE ALSO

AUTHOR

COPYRIGHT AND LICENSE