LanguageRu.php

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<?php
class LanguageRu extends Language {
 
    function convertGrammar( $word, $case ) {
        global $wgGrammarForms;
        if ( isset( $wgGrammarForms['ru'][$case][$word] ) ) {
            return $wgGrammarForms['ru'][$case][$word];
        }
 
        # These rules are not perfect, but they are currently only used for Wikimedia
        # site names so it doesn't matter if they are wrong sometimes.
        # Just add a special case for your site name if necessary.
 
        # substr doesn't support Unicode and mb_substr has issues,
        # so break it to characters using preg_match_all and then use array_slice and join
        $chars = array();
        preg_match_all( '/./us', $word, $chars );
        if ( !preg_match( "/[a-zA-Z_]/us", $word ) ) {
            switch ( $case ) {
                case 'genitive': # родительный падеж
                    if ( join( '', array_slice( $chars[0], -1 ) ) === 'ь' ) {
                        $word = join( '', array_slice( $chars[0], 0, -1 ) ) . 'я';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ия' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'ии';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ка' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'ки';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ти' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'тей';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ды' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'дов';
                    } elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ник' ) {
                        $word = join( '', array_slice( $chars[0], 0, -3 ) ) . 'ника';
                    } elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ные' ) {
                        $word = join( '', array_slice( $chars[0], 0, -3 ) ) . 'ных';
                    }
                    break;
                case 'dative': # дательный падеж
                    # stub
                    break;
                case 'accusative': # винительный падеж
                    # stub
                    break;
                case 'instrumental': # творительный падеж
                    # stub
                    break;
                case 'prepositional': # предложный падеж
                    if ( join( '', array_slice( $chars[0], -1 ) ) === 'ь' ) {
                        $word = join( '', array_slice( $chars[0], 0, -1 ) ) . 'е';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ия' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'ии';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ка' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'ке';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ти' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'тях';
                    } elseif ( join( '', array_slice( $chars[0], -2 ) ) === 'ды' ) {
                        $word = join( '', array_slice( $chars[0], 0, -2 ) ) . 'дах';
                    } elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ник' ) {
                        $word = join( '', array_slice( $chars[0], 0, -3 ) ) . 'нике';
                    } elseif ( join( '', array_slice( $chars[0], -3 ) ) === 'ные' ) {
                        $word = join( '', array_slice( $chars[0], 0, -3 ) ) . 'ных';
                    }
                    break;
            }
        }
 
        return $word;
    }
 
    function commafy( $_ ) {
        if ( preg_match( '/^-?\d{1,4}(\.\d*)?$/', $_ ) ) {
            return $_;
        } else {
            return strrev( (string)preg_replace( '/(\d{3})(?=\d)(?!\d*\.)/', '$1,', strrev( $_ ) ) );
        }
    }
}