X-Git-Url: https://scripts.mit.edu/gitweb/autoinstalls/wordpress.git/blobdiff_plain/76aea3697c6043c1613370f172395b4f65ee71f0..6c8f14c09105d0afa4c1574215c59b5021040e76:/wp-includes/l10n.php

diff --git a/wp-includes/l10n.php b/wp-includes/l10n.php
index 35f89c58..750e08de 100644
--- a/wp-includes/l10n.php
+++ b/wp-includes/l10n.php
@@ -7,171 +7,224 @@
  */
 
 /**
- * get_locale() - Gets the current locale
+ * Gets the current locale.
  *
- * If the locale is set, then it will filter the locale
- * in the 'locale' filter hook and return the value.
+ * If the locale is set, then it will filter the locale in the 'locale' filter
+ * hook and return the value.
  *
- * If the locale is not set already, then the WPLANG
- * constant is used if it is defined. Then it is filtered
- * through the 'locale' filter hook and the value for the
- * locale global set and the locale is returned.
+ * If the locale is not set already, then the WPLANG constant is used if it is
+ * defined. Then it is filtered through the 'locale' filter hook and the value
+ * for the locale global set and the locale is returned.
  *
- * The process to get the locale should only be done once
- * but the locale will always be filtered using the
- * 'locale' hook.
+ * The process to get the locale should only be done once, but the locale will
+ * always be filtered using the 'locale' hook.
  *
  * @since 1.5.0
- * @uses apply_filters() Calls 'locale' hook on locale value
- * @uses $locale Gets the locale stored in the global
+ * @uses apply_filters() Calls 'locale' hook on locale value.
+ * @uses $locale Gets the locale stored in the global.
  *
- * @return string The locale of the blog or from the 'locale' hook
+ * @return string The locale of the blog or from the 'locale' hook.
  */
 function get_locale() {
 	global $locale;
 
-	if (isset($locale))
+	if ( isset( $locale ) )
 		return apply_filters( 'locale', $locale );
 
 	// WPLANG is defined in wp-config.
-	if (defined('WPLANG'))
+	if ( defined( 'WPLANG' ) )
 		$locale = WPLANG;
 
-	if (empty($locale))
-		$locale = 'en_US';
+	// If multisite, check options.
+	if ( is_multisite() ) {
+		// Don't check blog option when installing.
+		if ( defined( 'WP_INSTALLING' ) || ( false === $ms_locale = get_option( 'WPLANG' ) ) )
+			$ms_locale = get_site_option('WPLANG');
 
-	$locale = apply_filters('locale', $locale);
+		if ( $ms_locale !== false )
+			$locale = $ms_locale;
+	}
 
-	return $locale;
+	if ( empty( $locale ) )
+		$locale = 'en_US';
+
+	return apply_filters( 'locale', $locale );
 }
 
 /**
- * translate() - Retrieve the translated text
- *
- * If the domain is set in the $l10n global, then the text is run
- * through the domain's translate method. After it is passed to
- * the 'gettext' filter hook, along with the untranslated text as
- * the second parameter.
- *
- * If the domain is not set, the $text is just returned.
+ * Retrieves the translation of $text. If there is no translation, or
+ * the domain isn't loaded, the original text is returned.
  *
+ * @see __() Don't use translate() directly, use __()
  * @since 2.2.0
- * @uses $l10n Gets list of domain translated string (gettext_reader) objects
  * @uses apply_filters() Calls 'gettext' on domain translated text
- *		with the untranslated text as second parameter
+ *		with the untranslated text as second parameter.
  *
- * @param string $text Text to translate
- * @param string $domain Domain to retrieve the translated text
+ * @param string $text Text to translate.
+ * @param string $domain Domain to retrieve the translated text.
  * @return string Translated text
  */
-function translate($text, $domain = 'default') {
-	global $l10n;
+function translate( $text, $domain = 'default' ) {
+	$translations = get_translations_for_domain( $domain );
+	return apply_filters( 'gettext', $translations->translate( $text ), $text, $domain );
+}
 
-	if (isset($l10n[$domain]))
-		return apply_filters('gettext', $l10n[$domain]->translate($text), $text);
+function before_last_bar( $string ) {
+	$last_bar = strrpos( $string, '|' );
+	if ( false == $last_bar )
+		return $string;
 	else
-		return $text;
+		return substr( $string, 0, $last_bar );
+}
+
+function translate_with_gettext_context( $text, $context, $domain = 'default' ) {
+	$translations = get_translations_for_domain( $domain );
+	return apply_filters( 'gettext_with_context', $translations->translate( $text, $context ), $text, $context, $domain );
 }
 
 /**
- * translate_with_context() - Retrieve the translated text and strip context
+ * Retrieves the translation of $text. If there is no translation, or
+ * the domain isn't loaded, the original text is returned.
  *
- * If the domain is set in the $l10n global, then the text is run
- * through the domain's translate method. After it is passed to
- * the 'gettext' filter hook, along with the untranslated text as
- * the second parameter.
+ * @see translate() An alias of translate()
+ * @since 2.1.0
  *
- * If the domain is not set, the $text is just returned.
+ * @param string $text Text to translate
+ * @param string $domain Optional. Domain to retrieve the translated text
+ * @return string Translated text
+ */
+function __( $text, $domain = 'default' ) {
+	return translate( $text, $domain );
+}
+
+/**
+ * Retrieves the translation of $text and escapes it for safe use in an attribute.
+ * If there is no translation, or the domain isn't loaded, the original text is returned.
  *
- * @since 2.5
- * @uses translate()
+ * @see translate() An alias of translate()
+ * @see esc_attr()
+ * @since 2.8.0
  *
  * @param string $text Text to translate
- * @param string $domain Domain to retrieve the translated text
+ * @param string $domain Optional. Domain to retrieve the translated text
  * @return string Translated text
  */
-function translate_with_context($text, $domain = 'default') {
-	$whole = translate($text, $domain);
-	$last_bar = strrpos($whole, '|');
-	if ( false == $last_bar ) {
-		return $whole;
-	} else {
-		return substr($whole, 0, $last_bar);
-	}
+function esc_attr__( $text, $domain = 'default' ) {
+	return esc_attr( translate( $text, $domain ) );
 }
 
 /**
- * __() - Retrieve a translated string
- *
- * __() is a convenience function which retrieves the translated
- * string from the translate().
+ * Retrieves the translation of $text and escapes it for safe use in HTML output.
+ * If there is no translation, or the domain isn't loaded, the original text is returned.
  *
  * @see translate() An alias of translate()
- * @since 2.1.0
+ * @see esc_html()
+ * @since 2.8.0
  *
  * @param string $text Text to translate
  * @param string $domain Optional. Domain to retrieve the translated text
  * @return string Translated text
  */
-function __($text, $domain = 'default') {
-	return translate($text, $domain);
+function esc_html__( $text, $domain = 'default' ) {
+	return esc_html( translate( $text, $domain ) );
 }
 
-// .
 /**
- * _e() - Display a translated string
+ * Displays the returned translated text from translate().
  *
- * _e() is a convenience function which displays the returned
- * translated text from translate().
- *
- * @see translate() Echos returned translate() string
+ * @see translate() Echoes returned translate() string
  * @since 1.2.0
  *
  * @param string $text Text to translate
  * @param string $domain Optional. Domain to retrieve the translated text
  */
-function _e($text, $domain = 'default') {
-	echo translate($text, $domain);
+function _e( $text, $domain = 'default' ) {
+	echo translate( $text, $domain );
 }
 
 /**
- * _c() - Retrieve context translated string
+ * Displays translated text that has been escaped for safe use in an attribute.
  *
- * Quite a few times, there will be collisions with similar
- * translatable text found in more than two places but with
- * different translated context.
+ * @see translate() Echoes returned translate() string
+ * @see esc_attr()
+ * @since 2.8.0
  *
- * In order to use the separate contexts, the _c() function
- * is used and the translatable string uses a pipe ('|')
- * which has the context the string is in.
+ * @param string $text Text to translate
+ * @param string $domain Optional. Domain to retrieve the translated text
+ */
+function esc_attr_e( $text, $domain = 'default' ) {
+	echo esc_attr( translate( $text, $domain ) );
+}
+
+/**
+ * Displays translated text that has been escaped for safe use in HTML output.
  *
- * When the translated string is returned, it is everything
- * before the pipe, not including the pipe character. If
- * there is no pipe in the translated text then everything
- * is returned.
+ * @see translate() Echoes returned translate() string
+ * @see esc_html()
+ * @since 2.8.0
  *
- * @since 2.2.0
+ * @param string $text Text to translate
+ * @param string $domain Optional. Domain to retrieve the translated text
+ */
+function esc_html_e( $text, $domain = 'default' ) {
+	echo esc_html( translate( $text, $domain ) );
+}
+
+/**
+ * Retrieve translated string with gettext context
+ *
+ * Quite a few times, there will be collisions with similar translatable text
+ * found in more than two places but with different translated context.
+ *
+ * By including the context in the pot file translators can translate the two
+ * strings differently.
+ *
+ * @since 2.8.0
+ *
+ * @param string $text Text to translate
+ * @param string $context Context information for the translators
+ * @param string $domain Optional. Domain to retrieve the translated text
+ * @return string Translated context string without pipe
+ */
+function _x( $text, $context, $domain = 'default' ) {
+	return translate_with_gettext_context( $text, $context, $domain );
+}
+
+/**
+ * Displays translated string with gettext context
+ *
+ * @see _x
+ * @since 3.0.0
  *
  * @param string $text Text to translate
+ * @param string $context Context information for the translators
  * @param string $domain Optional. Domain to retrieve the translated text
  * @return string Translated context string without pipe
  */
-function _c($text, $domain = 'default') {
-	return translate_with_context($text, $domain);
+function _ex( $text, $context, $domain = 'default' ) {
+	echo _x( $text, $context, $domain );
+}
+
+function esc_attr_x( $single, $context, $domain = 'default' ) {
+	return esc_attr( translate_with_gettext_context( $single, $context, $domain ) );
+}
+
+function esc_html_x( $single, $context, $domain = 'default' ) {
+	return esc_html( translate_with_gettext_context( $single, $context, $domain ) );
 }
 
 /**
- * __ngettext() - Retrieve the plural or single form based on the amount
+ * Retrieve the plural or single form based on the amount.
  *
- * If the domain is not set in the $l10n list, then a comparsion
- * will be made and either $plural or $single parameters returned.
+ * If the domain is not set in the $l10n list, then a comparison will be made
+ * and either $plural or $single parameters returned.
  *
- * If the domain does exist, then the parameters $single, $plural,
- * and $number will first be passed to the domain's ngettext method.
- * Then it will be passed to the 'ngettext' filter hook along with
- * the same parameters. The expected type will be a string.
+ * If the domain does exist, then the parameters $single, $plural, and $number
+ * will first be passed to the domain's ngettext method. Then it will be passed
+ * to the 'ngettext' filter hook along with the same parameters. The expected
+ * type will be a string.
  *
- * @since 1.2.0
+ * @since 2.8.0
  * @uses $l10n Gets list of domain translated string (gettext_reader) objects
  * @uses apply_filters() Calls 'ngettext' hook on domains text returned,
  *		along with $single, $plural, and $number parameters. Expected to return string.
@@ -182,129 +235,217 @@ function _c($text, $domain = 'default') {
  * @param string $domain Optional. The domain identifier the text should be retrieved in
  * @return string Either $single or $plural translated text
  */
-function __ngettext($single, $plural, $number, $domain = 'default') {
-	global $l10n;
+function _n( $single, $plural, $number, $domain = 'default' ) {
+	$translations = get_translations_for_domain( $domain );
+	$translation = $translations->translate_plural( $single, $plural, $number );
+	return apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain );
+}
 
-	if (isset($l10n[$domain])) {
-		return apply_filters('ngettext', $l10n[$domain]->ngettext($single, $plural, $number), $single, $plural, $number);
-	} else {
-		if ($number != 1)
-			return $plural;
-		else
-			return $single;
-	}
+/**
+ * A hybrid of _n() and _x(). It supports contexts and plurals.
+ *
+ * @see _n()
+ * @see _x()
+ *
+ */
+function _nx($single, $plural, $number, $context, $domain = 'default') {
+	$translations = get_translations_for_domain( $domain );
+	$translation = $translations->translate_plural( $single, $plural, $number, $context );
+	return apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain );
 }
 
 /**
- * __ngettext_noop() - register plural strings in POT file, but don't translate them
+ * Register plural strings in POT file, but don't translate them.
  *
- * Used when you want do keep structures with translatable plural strings and
+ * Used when you want to keep structures with translatable plural strings and
  * use them later.
  *
  * Example:
  *  $messages = array(
- *  	'post' => ngettext_noop('%s post', '%s posts'),
- *  	'page' => ngettext_noop('%s pages', '%s pages')
+ *  	'post' => _n_noop('%s post', '%s posts'),
+ *  	'page' => _n_noop('%s pages', '%s pages')
  *  );
  *  ...
  *  $message = $messages[$type];
- *  $usable_text = sprintf(__ngettext($message[0], $message[1], $count), $count);
+ *  $usable_text = sprintf( translate_nooped_plural( $message, $count ), $count );
  *
  * @since 2.5
- * @param $single Single form to be i18ned
- * @param $plural Plural form to be i18ned
- * @param $number Not used, here for compatibility with __ngettext, optional
- * @param $domain Not used, here for compatibility with __ngettext, optional
- * @return array array($single, $plural)
+ * @param string $singular Single form to be i18ned
+ * @param string $plural Plural form to be i18ned
+ * @param string $domain Optional. The domain identifier the text will be retrieved in
+ * @return array array($singular, $plural)
  */
-function __ngettext_noop($single, $plural, $number=1, $domain = 'default') {
-	return array($single, $plural);
+function _n_noop( $singular, $plural, $domain = null ) {
+	return array( 0 => $singular, 1 => $plural, 'singular' => $singular, 'plural' => $plural, 'context' => null, 'domain' => $domain );
 }
 
 /**
- * load_textdomain() - Loads MO file into the list of domains
+ * Register plural strings with context in POT file, but don't translate them.
  *
- * If the domain already exists, the inclusion will fail. If the
- * MO file is not readable, the inclusion will fail.
+ * @see _n_noop()
+ */
+function _nx_noop( $singular, $plural, $context, $domain = null ) {
+	return array( 0 => $singular, 1 => $plural, 2 => $context, 'singular' => $singular, 'plural' => $plural, 'context' => $context, 'domain' => $domain );
+}
+
+/**
+ * Translate the result of _n_noop() or _nx_noop()
+ *
+ * @since 3.1
+ * @param array $nooped_plural Array with singular, plural and context keys, usually the result of _n_noop() or _nx_noop()
+ * @param int $count Number of objects
+ * @param string $domain Optional. The domain identifier the text should be retrieved in. If $nooped_plural contains
+ * 	a domain passed to _n_noop() or _nx_noop(), it will override this value.
+ */
+function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) {
+	if ( $nooped_plural['domain'] )
+		$domain = $nooped_plural['domain'];
+
+	if ( $nooped_plural['context'] )
+		return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain );
+	else
+		return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain );
+}
+
+/**
+ * Loads a MO file into the domain $domain.
  *
- * On success, the mofile will be placed in the $l10n global by
- * $domain and will be an gettext_reader object.
+ * If the domain already exists, the translations will be merged. If both
+ * sets have the same string, the translation from the original value will be taken.
+ *
+ * On success, the .mo file will be placed in the $l10n global by $domain
+ * and will be a MO object.
  *
  * @since 1.5.0
- * @uses $l10n Gets list of domain translated string (gettext_reader) objects
- * @uses CacheFileReader Reads the MO file
- * @uses gettext_reader Allows for retrieving translated strings
+ * @uses $l10n Gets list of domain translated string objects
  *
  * @param string $domain Unique identifier for retrieving translated strings
  * @param string $mofile Path to the .mo file
- * @return null On failure returns null and also on success returns nothing.
+ * @return bool True on success, false on failure
  */
-function load_textdomain($domain, $mofile) {
+function load_textdomain( $domain, $mofile ) {
 	global $l10n;
 
-	if ( is_readable($mofile))
-		$input = new CachedFileReader($mofile);
-	else
-		return;
+	$plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile );
+
+	if ( true == $plugin_override ) {
+		return true;
+	}
+
+	do_action( 'load_textdomain', $domain, $mofile );
+
+	$mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain );
+
+	if ( !is_readable( $mofile ) ) return false;
+
+	$mo = new MO();
+	if ( !$mo->import_from_file( $mofile ) ) return false;
 
-	$gettext = new gettext_reader($input);
+	if ( isset( $l10n[$domain] ) )
+		$mo->merge_with( $l10n[$domain] );
 
-	if (isset($l10n[$domain])) {
-		$l10n[$domain]->load_tables();
-		$gettext->load_tables();
-		$l10n[$domain]->cache_translations = array_merge($gettext->cache_translations, $l10n[$domain]->cache_translations);
-	} else
-		$l10n[$domain] = $gettext;
+	$l10n[$domain] = &$mo;
 
-	unset($input, $gettext);
+	return true;
 }
 
 /**
- * load_default_textdomain() - Loads default translated strings based on locale
+ * Unloads translations for a domain
  *
- * Loads the .mo file in WP_LANG_DIR constant path from WordPress root.
- * The translated (.mo) file is named based off of the locale.
+ * @since 3.0.0
+ * @param string $domain Textdomain to be unloaded
+ * @return bool Whether textdomain was unloaded
+ */
+function unload_textdomain( $domain ) {
+	global $l10n;
+
+	$plugin_override = apply_filters( 'override_unload_textdomain', false, $domain );
+
+	if ( $plugin_override )
+		return true;
+
+	do_action( 'unload_textdomain', $domain );
+
+	if ( isset( $l10n[$domain] ) ) {
+		unset( $l10n[$domain] );
+		return true;
+	}
+
+	return false;
+}
+
+/**
+ * Loads default translated strings based on locale.
+ *
+ * Loads the .mo file in WP_LANG_DIR constant path from WordPress root. The
+ * translated (.mo) file is named based on the locale.
  *
  * @since 1.5.0
  */
 function load_default_textdomain() {
 	$locale = get_locale();
 
-	$mofile = WP_LANG_DIR . "/$locale.mo";
+	load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo" );
+
+	if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists(  WP_LANG_DIR . "/admin-$locale.mo" ) ) {
+		load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo" );
+		return;
+	}
+
+	if ( is_admin() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) )
+		load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo" );
+
+	if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) )
+		load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo" );
 
-	load_textdomain('default', $mofile);
 }
 
 /**
- * load_plugin_textdomain() - Loads the plugin's translated strings
+ * Loads the plugin's translated strings.
  *
- * If the path is not given then it will be the root of the plugin
- * directory. The .mo file should be named based on the domain with a
- * dash followed by a dash, and then the locale exactly.
+ * If the path is not given then it will be the root of the plugin directory.
+ * The .mo file should be named based on the domain with a dash, and then the locale exactly.
  *
  * @since 1.5.0
  *
  * @param string $domain Unique identifier for retrieving translated strings
  * @param string $abs_rel_path Optional. Relative path to ABSPATH of a folder,
  * 	where the .mo file resides. Deprecated, but still functional until 2.7
- * @param string $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR. This is the preferred argument to use. It takes precendence over $abs_rel_path
+ * @param string $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR. This is the preferred argument to use. It takes precedence over $abs_rel_path
  */
-function load_plugin_textdomain($domain, $abs_rel_path = false, $plugin_rel_path = false) {
-	$locale = get_locale();
-	
-	if ( false !== $plugin_rel_path	)
-		$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/');
-	else if ( false !== $abs_rel_path)
-		$path = ABSPATH . trim( $abs_rel_path, '/');
-	else
+function load_plugin_textdomain( $domain, $abs_rel_path = false, $plugin_rel_path = false ) {
+	$locale = apply_filters( 'plugin_locale', get_locale(), $domain );
+
+	if ( false !== $plugin_rel_path	) {
+		$path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' );
+	} else if ( false !== $abs_rel_path ) {
+		_deprecated_argument( __FUNCTION__, '2.7' );
+		$path = ABSPATH . trim( $abs_rel_path, '/' );
+	} else {
 		$path = WP_PLUGIN_DIR;
+	}
 
 	$mofile = $path . '/'. $domain . '-' . $locale . '.mo';
-	load_textdomain($domain, $mofile);
+	return load_textdomain( $domain, $mofile );
+}
+
+/**
+ * Load the translated strings for a plugin residing in the mu-plugins dir.
+ *
+ * @since 3.0.0
+ *
+ * @param string $domain Unique identifier for retrieving translated strings
+ * @param string $mu_plugin_rel_path Relative to WPMU_PLUGIN_DIR directory in which
+ * the MO file resides. Defaults to empty string.
+ */
+function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) {
+	$locale = apply_filters( 'plugin_locale', get_locale(), $domain );
+	$path = WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' );
+	load_textdomain( $domain, trailingslashit( $path ) . "$domain-$locale.mo" );
 }
 
 /**
- * load_theme_textdomain() - Includes theme's translated strings for the theme
+ * Loads the theme's translated strings.
  *
  * If the current locale exists as a .mo file in the theme's root directory, it
  * will be included in the translated strings by the $domain.
@@ -315,11 +456,98 @@ function load_plugin_textdomain($domain, $abs_rel_path = false, $plugin_rel_path
  *
  * @param string $domain Unique identifier for retrieving translated strings
  */
-function load_theme_textdomain($domain) {
-	$locale = get_locale();
+function load_theme_textdomain( $domain, $path = false ) {
+	$locale = apply_filters( 'theme_locale', get_locale(), $domain );
+
+	if ( ! $path )
+		$path = get_template_directory();
+
+	// Load the textdomain from the Theme provided location, or theme directory first
+	$mofile = "{$path}/{$locale}.mo";
+	if ( $loaded = load_textdomain($domain, $mofile) )
+		return $loaded;
+
+	// Else, load textdomain from the Language directory
+	$mofile = WP_LANG_DIR . "/themes/{$domain}-{$locale}.mo";
+	return load_textdomain($domain, $mofile);
+}
+
+/**
+ * Loads the child themes translated strings.
+ *
+ * If the current locale exists as a .mo file in the child themes root directory, it
+ * will be included in the translated strings by the $domain.
+ *
+ * The .mo files must be named based on the locale exactly.
+ *
+ * @since 2.9.0
+ *
+ * @param string $domain Unique identifier for retrieving translated strings
+ */
+function load_child_theme_textdomain( $domain, $path = false ) {
+	if ( ! $path )
+		$path = get_stylesheet_directory();
+	return load_theme_textdomain( $domain, $path );
+}
+
+/**
+ * Returns the Translations instance for a domain. If there isn't one,
+ * returns empty Translations instance.
+ *
+ * @param string $domain
+ * @return object A Translation instance
+ */
+function get_translations_for_domain( $domain ) {
+	global $l10n;
+	if ( !isset( $l10n[$domain] ) ) {
+		$l10n[$domain] = new NOOP_Translations;
+	}
+	return $l10n[$domain];
+}
 
-	$mofile = get_template_directory() . "/$locale.mo";
-	load_textdomain($domain, $mofile);
+/**
+ * Whether there are translations for the domain
+ *
+ * @since 3.0.0
+ * @param string $domain
+ * @return bool Whether there are translations
+ */
+function is_textdomain_loaded( $domain ) {
+	global $l10n;
+	return isset( $l10n[$domain] );
 }
 
-?>
+/**
+ * Translates role name. Since the role names are in the database and
+ * not in the source there are dummy gettext calls to get them into the POT
+ * file and this function properly translates them back.
+ *
+ * The before_last_bar() call is needed, because older installs keep the roles
+ * using the old context format: 'Role name|User role' and just skipping the
+ * content after the last bar is easier than fixing them in the DB. New installs
+ * won't suffer from that problem.
+ */
+function translate_user_role( $name ) {
+	return translate_with_gettext_context( before_last_bar($name), 'User role' );
+}
+
+/**
+ * Get all available languages based on the presence of *.mo files in a given directory. The default directory is WP_LANG_DIR.
+ *
+ * @since 3.0.0
+ *
+ * @param string $dir A directory in which to search for language files. The default directory is WP_LANG_DIR.
+ * @return array Array of language codes or an empty array if no languages are present. Language codes are formed by stripping the .mo extension from the language file names.
+ */
+function get_available_languages( $dir = null ) {
+	$languages = array();
+
+	foreach( (array)glob( ( is_null( $dir) ? WP_LANG_DIR : $dir ) . '/*.mo' ) as $lang_file ) {
+		$lang_file = basename($lang_file, '.mo');
+		if ( 0 !== strpos( $lang_file, 'continents-cities' ) && 0 !== strpos( $lang_file, 'ms-' ) &&
+			0 !== strpos( $lang_file, 'admin-' ))
+			$languages[] = $lang_file;
+	}
+
+	return $languages;
+}
\ No newline at end of file