+ /**
+ * Can this namespace ever have a talk namespace?
+ *
+ * @param $index Int: namespace index
+ * @return bool
+ */
+ public static function canTalk( $index ) {
+ return $index >= NS_MAIN;
+ }
+
+ /**
+ * Does this namespace contain content, for the purposes of calculating
+ * statistics, etc?
+ *
+ * @param $index Int: index to check
+ * @return bool
+ */
+ public static function isContent( $index ) {
+ global $wgContentNamespaces;
+ return $index == NS_MAIN || in_array( $index, $wgContentNamespaces );
+ }
+
+ /**
+ * Can pages in a namespace be watched?
+ *
+ * @param $index Int
+ * @return bool
+ */
+ public static function isWatchable( $index ) {
+ return $index >= NS_MAIN;
+ }
+
+ /**
+ * Does the namespace allow subpages?
+ *
+ * @param $index int Index to check
+ * @return bool
+ */
+ public static function hasSubpages( $index ) {
+ global $wgNamespacesWithSubpages;
+ return !empty( $wgNamespacesWithSubpages[$index] );
+ }
+
+ /**
+ * Is the namespace first-letter capitalized?
+ *
+ * @param $index int Index to check
+ * @return bool
+ */
+ public static function isCapitalized( $index ) {
+ global $wgCapitalLinks, $wgCapitalLinkOverrides;
+ // Turn NS_MEDIA into NS_FILE
+ $index = $index === NS_MEDIA ? NS_FILE : $index;
+
+ // Make sure to get the subject of our namespace
+ $index = self::getSubject( $index );
+
+ // Some namespaces are special and should always be upper case
+ if ( in_array( $index, self::$alwaysCapitalizedNamespaces ) ) {
+ return true;
+ }
+ if ( isset( $wgCapitalLinkOverrides[ $index ] ) ) {
+ // $wgCapitalLinkOverrides is explicitly set
+ return $wgCapitalLinkOverrides[ $index ];
+ }
+ // Default to the global setting
+ return $wgCapitalLinks;
+ }