Fixed sort algo for additional cases

core/js/js.js

@@ -1373,7 +1373,8 @@ OC.Util = {
 
 		while (x < t.length) {
 			c = t.charAt(x);
-			var m = (c === '.' || (c >= '0' && c <= '9'));
+			// only include the dot in strings
+			var m = ((!n && c === '.') || (c >= '0' && c <= '9'));
 			if (m !== n) {
 				// next chunk
 				y++;
@@ -1393,6 +1394,7 @@ OC.Util = {
 	 * or 0 if the strings are identical
 	 */
 	naturalSortCompare: function(a, b) {
+		var x;
 		var aa = OC.Util._chunkify(a);
 		var bb = OC.Util._chunkify(b);
 

core/js/tests/specs/coreSpec.js

@@ -531,10 +531,14 @@ describe('Core base tests', function() {
 				'za',
 				'ghi 1.txt',
 				'ghi 12.txt',
-				'zz'
+				'zz',
+				'15.txt',
+				'15b.txt'
 			];
 			a.sort(OC.Util.naturalSortCompare);
 			expect(a).toEqual([
+				'15.txt',
+				'15b.txt',
 				'123.txt',
 				'124.txt',
 				'abc',

lib/private/naturalsort.php

@@ -39,7 +39,8 @@ class NaturalSort {
 
 		while ($x < $length) {
 			$c = $t[$x];
-			$m = ($c === '.' || ($c >= '0' && $c <= '9'));
+			// only include the dot in strings
+			$m = ((!$n && $c === '.') || ($c >= '0' && $c <= '9'));
 			if ($m !== $n) {
 				// next chunk
 				$y++;

tests/lib/naturalsort.php

@@ -74,9 +74,13 @@ class Test_NaturalSort extends PHPUnit_Framework_TestCase {
 					'ghi 1.txt',
 					'ghi 12.txt',
 					'zz',
+					'15.txt',
+					'15b.txt',
 				),
 				// sorted
 				array(
+					'15.txt',
+					'15b.txt',
 					'123.txt',
 					'124.txt',
 					'abc',