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[Intl] Add PHP 8.5 IntlListFormatter as installable polyfill
Adds a new polyfill component `symfony/polyfill-intl-listformatter` that provides the functionality of the new `IntlListFormatter` to PHP 7.2 and later. It is a new composer-installable package (similar to how Intl `MessageFormatter` is a separate installable package, and the PHP 8.5 polyfill can require it as a dependency too. It only supports `en` locale. However, PHP applications that require this package can extend the namespaced polyfill (`\Symfony\Polyfill\Intl\ListFormatter\IntlListFormatter`) and add their own list patterns by extending the static variable (`\Symfony\Polyfill\Intl\ListFormatter\IntlListFormatter::$listPatterns`) that holds these patterns. - [ICU listPatterns](https://github.com/unicode-org/cldr-json/blob/main/cldr-json/cldr-misc-full/main/en/listPatterns.json) - [php-src commit](php/php-src@3f7545245) - [PHP.Watch: IntlListFormatter](https://php.watch/versions/8.5/IntlListFormatter) Closes GH-530.
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‎composer.json‎

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"symfony/polyfill-intl-grapheme": "self.version",
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"symfony/polyfill-intl-icu": "self.version",
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"symfony/polyfill-intl-messageformatter": "self.version",
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"symfony/polyfill-intl-listformatter": "self.version",
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"symfony/polyfill-intl-idn": "self.version",
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"symfony/polyfill-intl-normalizer": "self.version",
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"symfony/polyfill-mbstring": "self.version",
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"classmap": [
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"src/Intl/Icu/Resources/stubs",
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"src/Intl/MessageFormatter/Resources/stubs",
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"src/Intl/ListFormatter/Resources/stubs",
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"src/Intl/Normalizer/Resources/stubs",
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"src/Php85/Resources/stubs",
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"src/Php84/Resources/stubs",

‎src/Intl/ListFormatter/IntlListFormatter.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Polyfill\Intl\ListFormatter;
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/**
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* A polyfill implementation of the IntlListFormatter class provided by the intl extension.
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*
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* @author Ayesh Karunaratne <ayesh@aye.sh>
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*
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* @internal
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*/
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class IntlListFormatter
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{
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public const TYPE_AND = 0;
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public const TYPE_OR = 1;
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public const TYPE_UNITS = 2;
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public const WIDTH_WIDE = 0;
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public const WIDTH_SHORT = 1;
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public const WIDTH_NARROW = 2;
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/**
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* @var string
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*/
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private $locale;
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/**
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* @var int
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*/
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private $type;
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/**
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* @var int
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*/
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private $width;
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protected static $listPatterns = [
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'en' => [
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'listPattern-type-standard' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, and {1}',
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2 => '{0} and {1}',
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],
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'listPattern-type-or' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, or {1}',
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2 => '{0} or {1}',
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],
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'listPattern-type-or-narrow' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, or {1}',
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2 => '{0} or {1}',
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],
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'listPattern-type-or-short' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, or {1}',
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2 => '{0} or {1}',
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],
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'listPattern-type-standard-narrow' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, {1}',
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2 => '{0}, {1}',
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],
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'listPattern-type-standard-short' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, & {1}',
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2 => '{0} & {1}',
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],
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'listPattern-type-unit' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, {1}',
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2 => '{0}, {1}',
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],
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'listPattern-type-unit-narrow' => [
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'start' => '{0} {1}',
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'middle' => '{0} {1}',
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'end' => '{0} {1}',
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2 => '{0} {1}',
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],
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'listPattern-type-unit-short' => [
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'start' => '{0}, {1}',
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'middle' => '{0}, {1}',
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'end' => '{0}, {1}',
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2 => '{0}, {1}',
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],
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],
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];
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public function __construct(
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string $locale,
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int $type = self::TYPE_AND,
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int $width = self::WIDTH_WIDE
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) {
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$exceptionClass = PHP_VERSION_ID >= 80000 ? \ValueError::class : \InvalidArgumentException::class;
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if ($locale !== 'en' && strpos($locale, 'en') !== 0) {
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throw new $exceptionClass('Invalid locale, only "en" and "en-*" locales are supported');
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}
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if ($type !== self::TYPE_AND && $type !== self::TYPE_OR && $type !== self::TYPE_UNITS) {
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throw new $exceptionClass('Argument #2 ($type) must be one of IntlListFormatter::TYPE_AND, IntlListFormatter::TYPE_OR, or IntlListFormatter::TYPE_UNITS.');
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}
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if ($width !== self::WIDTH_WIDE && $width !== self::WIDTH_SHORT && $width !== self::WIDTH_NARROW) {
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throw new $exceptionClass('Argument #3 ($width) must be one of IntlListFormatter::WIDTH_WIDE, IntlListFormatter::WIDTH_SHORT, or IntlListFormatter::WIDTH_NARROW.');
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}
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$this->locale = 'en';
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$this->type = $type;
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$this->width = $width;
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}
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public function format(array $strings): string
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{
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$itemCount = count($strings);
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if ($itemCount === 0) {
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return '';
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}
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$strings = array_values($strings);
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if ($itemCount === 1) {
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return (string) $strings[0];
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}
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$pattern = $this->getListPattern();
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switch ($this->type) {
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case self::TYPE_AND:
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$lookupKeyType = 'standard';
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break;
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case self::TYPE_OR:
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$lookupKeyType = 'or';
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break;
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case self::TYPE_UNITS:
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$lookupKeyType = 'unit';
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break;
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}
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switch ($this->width) {
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case self::WIDTH_WIDE:
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$lookupKeyWidth = '';
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break;
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case self::WIDTH_SHORT:
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$lookupKeyWidth = '-short';
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break;
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case self::WIDTH_NARROW:
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$lookupKeyWidth = '-narrow';
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break;
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}
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$pattern = $pattern['listPattern-type-' . $lookupKeyType . $lookupKeyWidth];
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if ($itemCount === 2) {
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return strtr($pattern[2], ['{0}' => (string) $strings[0], '{1}' => (string) $strings[1]]);
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}
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if ($itemCount === 3) {
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$start = strtr($pattern['start'], ['{0}' => (string) $strings[0], '{1}' => (string) $strings[1]]);
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return strtr($pattern['end'], ['{0}' => $start, '{1}' => (string) $strings[2]]);
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}
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$result = strtr($pattern['start'], ['{0}' => (string) $strings[0], '{1}' => (string) $strings[1]]);
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for ($i = 2; $i < $itemCount - 1; $i++) {
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$result = strtr($pattern["middle"], [
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"{0}" => $result,
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"{1}" => $strings[$i],
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]);
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}
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return strtr($pattern["end"], [
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"{0}" => $result,
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"{1}" => $strings[$itemCount - 1],
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]);
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}
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protected function getListPattern(): array {
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return self::$listPatterns[$this->locale];
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}
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public function getErrorCode()
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{
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return 0;
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}
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public function getErrorMessage()
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{
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return '';
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}
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}

‎src/Intl/ListFormatter/LICENSE‎

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Copyright (c) 2018-present Fabien Potencier
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is furnished
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to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.

‎src/Intl/ListFormatter/README.md‎

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Symfony Polyfill / Intl: ListFormatter
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=========================================
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This component provides a fallback implementation for the
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[`ListFormatter`](https://php.net/ListFormatter) class provided
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by the [Intl](https://php.net/intl) extension.
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More information can be found in the
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[main Polyfill README](https://github.com/symfony/polyfill/blob/main/README.md).
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License
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=======
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This library is released under the [MIT license](LICENSE).

‎src/Intl/ListFormatter/Resources/stubs/IntlException.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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class IntlException extends Exception
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{
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}

‎src/Intl/ListFormatter/Resources/stubs/IntlListFormatter.php‎

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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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final class IntlListFormatter extends Symfony\Polyfill\Intl\ListFormatter\IntlListFormatter
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{
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}

‎src/Intl/ListFormatter/composer.json‎

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{
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"name": "symfony/polyfill-intl-listformatter",
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"type": "library",
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"description": "Symfony polyfill for intl's ListFormatter class and related functions",
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"keywords": ["polyfill", "shim", "compatibility", "portable", "intl", "listformatter"],
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"homepage": "https://symfony.com",
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"license": "MIT",
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"authors": [
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{
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"name": "Nicolas Grekas",
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"email": "p@tchwork.com"
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},
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{
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"name": "Symfony Community",
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"homepage": "https://symfony.com/contributors"
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}
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],
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"require": {
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"php": ">=7.2"
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},
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"autoload": {
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"psr-4": { "Symfony\\Polyfill\\Intl\\ListFormatter\\": "" },
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"classmap": [ "Resources/stubs" ]
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},
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"suggest": {
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"ext-intl": "For best performance"
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},
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"minimum-stability": "dev",
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"extra": {
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"thanks": {
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"name": "symfony/polyfill",
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"url": "https://github.com/symfony/polyfill"
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}
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}
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}

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