From a68af638f5d093ab93b92ea94fb7720752d782ad Mon Sep 17 00:00:00 2001
From: Shinjiman <shinjiman@users.mediawiki.org>
Date: Fri, 24 Jul 2009 18:35:09 +0000
Subject: [PATCH] fix E_NOTICE on r53720 and r53721.

---
 includes/GlobalFunctions.php | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/includes/GlobalFunctions.php b/includes/GlobalFunctions.php
index 48638bd418..bf3c33f614 100644
--- a/includes/GlobalFunctions.php
+++ b/includes/GlobalFunctions.php
@@ -3195,15 +3195,20 @@ function wfObjectToArray( $object, $recursive = true ) {
 function wfBCP47( $code ) {
 	$codeSegment = explode( '-', $code );
 	foreach ( $codeSegment as $segNo => $seg ) {
-		// ISO 3166 country code
-		if ( ( strlen( $seg ) == 2 ) && ( $segNo > 0 ) )
-			$codeBCP[$segNo] = strtoupper ( $seg );
-		// ISO 15924 script code
-		else if ( ( strlen( $seg ) == 4 ) && ( $segNo > 0 ) )
-			$codeBCP[$segNo] = ucfirst( $seg );
-		// Keep casing for other cases
-		else
+		if ( count( $codeSegment ) > 0 ) {
+			// ISO 3166 country code
+			if ( ( strlen( $seg ) == 2 ) && ( $segNo > 0 ) )
+				$codeBCP[$segNo] = strtoupper ( $seg );
+			// ISO 15924 script code
+			else if ( ( strlen( $seg ) == 4 ) && ( $segNo > 0 ) )
+				$codeBCP[$segNo] = ucfirst( $seg );
+			else
+			// Keep casing for other cases
+				$codeBCP[$segNo] = $seg;
+		} else {
+		// Keep casing for single segment
 			$codeBCP[$segNo] = $seg;
+		}
 	}
 	$langCode = implode ( '-' , $codeBCP );
 	return $langCode;
-- 
2.20.1