Index: wp-includes/l10n.php
===================================================================
--- wp-includes/l10n.php	(revision 4813)
+++ wp-includes/l10n.php	(working copy)
@@ -51,6 +51,17 @@
 	}
 }
 
+// Translatable string and its description, separated by |
+function __withdesc($text, $domain = 'default') {
+	$whole = __($text, $domain);
+	$trans = explode('|', $whole, 2);
+	return $trans[0];
+}
+
+function _ewithdesc($text, $domain = 'default') {
+	echo __withdesc($text, $domain);
+}
+
 function load_textdomain($domain, $mofile) {
 	global $l10n;