AlphabetsProvider.php
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AlphabetsProvider.php
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	<?php

	namespace Cite;

	use MediaWiki\Extension\CLDR\Alphabets;

	/**
	* Wrapper for the CLDR Alphabets class
	*
	* @license GPL-2.0-or-later
	*/
	class AlphabetsProvider {

	private ?Alphabets $alphabet = null;

	public function __construct() {
	if ( class_exists( Alphabets::class ) ) {
	$this->alphabet = new Alphabets();
	}
	}

	/**
	* Get alphabet for a locale or its fallbacks
	*
	* The index or main alphabet, found in CLDR main `characters.exemplarCharacters`,
	* and reduced to a simple form for creating a sequence. Returns null when CLDR is not installed
	*
	* @param string $code Locale to query. If no entry exists, the fallback
	* locales are iterated.
	* @return string[]\|null a sequence of symbols
	*/
	public function getIndexCharacters( string $code ): ?array {
	return $this->alphabet ? $this->alphabet->getIndexCharacters( $code ) : null;
	}
	}