<?php

/** Old Church Slavonic (Ѩзыкъ словѣньскъ)
 *
 * @ingroup Language
 */
class LanguageCu extends Language {

	/**
	 * Convert from the nominative form of a noun to some other case
	 * Invoked with {{grammar:case|word}}
	 *
	 * @param $word string
	 * @param $case string
	 * @return string
	 */
	function convertGrammar( $word, $case ) {
		global $wgGrammarForms;
		if ( isset( $wgGrammarForms['сu'][$case][$word] ) ) {
			return $wgGrammarForms['сu'][$case][$word];
		}

		# These rules are not perfect, but they are currently only used for site names so it doesn't
		# matter if they are wrong sometimes. Just add a special case for your site name if necessary.

		# join and array_slice instead mb_substr
		$ar = array();
		preg_match_all( '/./us', $word, $ar );
		if ( !preg_match( "/[a-zA-Z_]/us", $word ) )
			switch ( $case ) {
				case 'genitive': # родительный падеж
					if ( ( join( '', array_slice( $ar[0], -4 ) ) == 'вики' ) || ( join( '', array_slice( $ar[0], -4 ) ) == 'Вики' ) )
						{ }
					elseif ( join( '', array_slice( $ar[0], -2 ) ) == 'ї' )
						$word = join( '', array_slice( $ar[0], 0, -2 ) ) . 'їѩ';
					break;
				case 'accusative': # винительный падеж
					# stub
					break;
			}
		return $word;
	}

	/**
	 * @param $count int
	 * @param $forms array
	 * @return string
	 */
	function convertPlural( $count, $forms ) {
		if ( !count( $forms ) ) { return ''; }
		$forms = $this->preConvertPlural( $forms, 4 );

		switch ( $count % 10 ) {
			case 1:  return $forms[0];
			case 2:  return $forms[1];
			case 3:
			case 4:  return $forms[2];
			default: return $forms[3];
		}
	}
}
