+ throw new MWException( __METHOD__ . ": Invalid file type: $_fileType" );
+ }
+ return $data;
+ }
+
+ /**
+ * Get the compiled plural rules for a given language from the XML files.
+ * @since 1.20
+ */
+ public function getCompiledPluralRules( $code ) {
+ $rules = $this->getPluralRules( $code );
+ if ( $rules === null ) {
+ return null;
+ }
+ try {
+ $compiledRules = CLDRPluralRuleEvaluator::compile( $rules );
+ } catch( CLDRPluralRuleError $e ) {
+ wfDebugLog( 'l10n', $e->getMessage() . "\n" );
+ return array();
+ }
+ return $compiledRules;
+ }
+
+ /**
+ * Get the plural rules for a given language from the XML files.
+ * Cached.
+ * @since 1.20
+ */
+ public function getPluralRules( $code ) {
+ if ( $this->pluralRules === null ) {
+ $cldrPlural = __DIR__ . "/../languages/data/plurals.xml";
+ $mwPlural = __DIR__ . "/../languages/data/plurals-mediawiki.xml";
+ // Load CLDR plural rules
+ $this->loadPluralFile( $cldrPlural );
+ if ( file_exists( $mwPlural ) ) {
+ // Override or extend
+ $this->loadPluralFile( $mwPlural );
+ }
+ }
+ if ( !isset( $this->pluralRules[$code] ) ) {
+ return null;
+ } else {
+ return $this->pluralRules[$code];
+ }
+ }
+
+
+ /**
+ * Load a plural XML file with the given filename, compile the relevant
+ * rules, and save the compiled rules in a process-local cache.
+ */
+ protected function loadPluralFile( $fileName ) {
+ $doc = new DOMDocument;
+ $doc->load( $fileName );
+ $rulesets = $doc->getElementsByTagName( "pluralRules" );
+ foreach ( $rulesets as $ruleset ) {
+ $codes = $ruleset->getAttribute( 'locales' );
+ $rules = array();
+ $ruleElements = $ruleset->getElementsByTagName( "pluralRule" );
+ foreach ( $ruleElements as $elt ) {
+ $rules[] = $elt->nodeValue;
+ }
+ foreach ( explode( ' ', $codes ) as $code ) {
+ $this->pluralRules[$code] = $rules;
+ }
+ }
+ }
+
+ /**
+ * Read the data from the source files for a given language, and register
+ * the relevant dependencies in the $deps array. If the localisation
+ * exists, the data array is returned, otherwise false is returned.
+ */
+ protected function readSourceFilesAndRegisterDeps( $code, &$deps ) {
+ $fileName = Language::getMessagesFileName( $code );
+ if ( !file_exists( $fileName ) ) {
+ return false;