<?php
-# This is a utility class with only static functions
-# for dealing with namespaces that encodes all the
-# "magic" behaviors of them based on index. The textual
-# names of the namespaces are handled by Language.php.
+/**
+ * Provide things related to namespaces
+ */
-# Virtual namespaces; these don't appear in the page database:
-define("NS_MEDIA", -2);
-define("NS_SPECIAL", -1);
+/**
+ * Definitions of the NS_ constants are in Defines.php
+ * @private
+ */
+$wgCanonicalNamespaceNames = array(
+ NS_MEDIA => 'Media',
+ NS_SPECIAL => 'Special',
+ NS_TALK => 'Talk',
+ NS_USER => 'User',
+ NS_USER_TALK => 'User_talk',
+ NS_PROJECT => 'Project',
+ NS_PROJECT_TALK => 'Project_talk',
+ NS_IMAGE => 'Image',
+ NS_IMAGE_TALK => 'Image_talk',
+ NS_MEDIAWIKI => 'MediaWiki',
+ NS_MEDIAWIKI_TALK => 'MediaWiki_talk',
+ NS_TEMPLATE => 'Template',
+ NS_TEMPLATE_TALK => 'Template_talk',
+ NS_HELP => 'Help',
+ NS_HELP_TALK => 'Help_talk',
+ NS_CATEGORY => 'Category',
+ NS_CATEGORY_TALK => 'Category_talk',
+);
-# Real namespaces:
-define("NS_MAIN", 0);
-define("NS_TALK", 1);
-define("NS_USER", 2);
-define("NS_USER_TALK", 3);
-define("NS_WP", 4);
-define("NS_WIKIPEDIA", 4);
-define("NS_WP_TALK", 5);
-define("NS_WIKIPEDIA_TALK", 5);
-define("NS_IMAGE", 6);
-define("NS_IMAGE_TALK", 7);
-define("NS_MEDIAWIKI", 8);
-define("NS_MEDIAWIKI_TALK", 9);
-define("NS_TEMPLATE", 10);
-define("NS_TEMPLATE_TALK", 11);
-define("NS_HELP", 12);
-define("NS_HELP_TALK", 13);
+if( is_array( $wgExtraNamespaces ) ) {
+ $wgCanonicalNamespaceNames = $wgCanonicalNamespaceNames + $wgExtraNamespaces;
+}
+/**
+ * This is a utility class with only static functions
+ * for dealing with namespaces that encodes all the
+ * "magic" behaviors of them based on index. The textual
+ * names of the namespaces are handled by Language.php.
+ *
+ * These are synonyms for the names given in the language file
+ * Users and translators should not change them
+ *
+ */
class Namespace {
- /* These functions are deprecated */
- function getSpecial() { return NS_SPECIAL; }
- function getUser() { return NS_USER; }
- function getWikipedia() { return NS_WP; }
- function getImage() { return NS_IMAGE; }
- function getMedia() { return NS_MEDIA; }
+ /**
+ * Can pages in the given namespace be moved?
+ *
+ * @param int $index Namespace index
+ * @return bool
+ */
+ public static function isMovable( $index ) {
+ return !( $index < NS_MAIN || $index == NS_IMAGE || $index == NS_CATEGORY );
+ }
- function isMovable( $index )
- {
- if ( $index < NS_MAIN || $index == NS_IMAGE || $index == NS_TEMPLATE) {
- return false;
- }
- return true;
+ /**
+ * Is the given namespace is a subject (non-talk) namespace?
+ *
+ * @param int $index Namespace index
+ * @return bool
+ */
+ public static function isMain( $index ) {
+ return !self::isTalk( $index );
}
- function isTalk( $index )
- {
- if ( NS_TALK == $index || NS_USER_TALK == $index || NS_WP_TALK == $index || NS_IMAGE_TALK == $index || NS_MEDIAWIKI_TALK == $index || NS_TEMPLATE_TALK == $index || NS_HELP_TALK == $index ) {
- return true;
- }
- return false;
+ /**
+ * Is the given namespace a talk namespace?
+ *
+ * @param int $index Namespace index
+ * @return bool
+ */
+ public static function isTalk( $index ) {
+ return $index > NS_MAIN
+ && $index % 2;
}
- # Get the talk namespace corresponding to the given index
- #
- function getTalk( $index )
- {
- if ( Namespace::isTalk( $index ) ) {
- return $index;
- } else {
- # FIXME
- return $index + 1;
- }
+ /**
+ * Get the talk namespace index for a given namespace
+ *
+ * @param int $index Namespace index
+ * @return int
+ */
+ public static function getTalk( $index ) {
+ return self::isTalk( $index )
+ ? $index
+ : $index + 1;
+ }
+
+ /**
+ * Get the subject namespace index for a given namespace
+ *
+ * @param int $index Namespace index
+ * @return int
+ */
+ public static function getSubject( $index ) {
+ return self::isTalk( $index )
+ ? $index - 1
+ : $index;
}
- function getSubject( $index )
- {
- if ( Namespace::isTalk( $index ) ) {
- return $index - 1;
+ /**
+ * Returns the canonical (English Wikipedia) name for a given index
+ *
+ * @param int $index Namespace index
+ * @return string
+ */
+ public static function getCanonicalName( $index ) {
+ global $wgCanonicalNamespaceNames;
+ return $wgCanonicalNamespaceNames[$index];
+ }
+
+ /**
+ * Returns the index for a given canonical name, or NULL
+ * The input *must* be converted to lower case first
+ *
+ * @param string $name Namespace name
+ * @return int
+ */
+ public static function getCanonicalIndex( $name ) {
+ global $wgCanonicalNamespaceNames;
+ static $xNamespaces = false;
+ if ( $xNamespaces === false ) {
+ $xNamespaces = array();
+ foreach ( $wgCanonicalNamespaceNames as $i => $text ) {
+ $xNamespaces[strtolower($text)] = $i;
+ }
+ }
+ if ( array_key_exists( $name, $xNamespaces ) ) {
+ return $xNamespaces[$name];
} else {
- return $index;
+ return NULL;
}
}
-}
-
-?>
+
+ /**
+ * Can this namespace ever have a talk namespace?
+ *
+ * @param $index 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 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 int $index
+ * @return bool
+ */
+ public static function isWatchable( $index ) {
+ return $index >= NS_MAIN;
+ }
+
+}
\ No newline at end of file