MediaWikiI18N.php

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<?php
class MediaWikiI18N {
    private $context = [];
 
    function set( $varName, $value ) {
        wfDeprecated( __METHOD__, '1.31' );
        $this->context[$varName] = $value;
    }
 
    function translate( $value ) {
        wfDeprecated( __METHOD__, '1.31' );
        // Hack for i18n:attributes in PHPTAL 1.0.0 dev version as of 2004-10-23
        $value = preg_replace( '/^string:/', '', $value );
 
        $value = wfMessage( $value )->text();
        // interpolate variables
        $m = [];
        while ( preg_match( '/\$([0-9]*?)/sm', $value, $m ) ) {
            list( $src, $var ) = $m;
            Wikimedia\suppressWarnings();
            $varValue = $this->context[$var];
            Wikimedia\restoreWarnings();
            $value = str_replace( $src, $varValue, $value );
        }
        return $value;
    }
}