Cell Coordinate splitRange doesn't support space delimeter

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 - Drop support for PHP 7.1, according to https://phpspreadsheet.readthedocs.io/en/latest/#php-version-support
 - Drop partial migration tool in favor of complete migration via RectorPHP [#1445](https://github.com/PHPOffice/PhpSpreadsheet/issues/1445)
+- Cell Coordinate range now supports a space delimiter
 
 ## [1.12.0] - 2020-04-27
 

src/PhpSpreadsheet/Cell/Coordinate.php

@@ -131,7 +131,13 @@ public static function splitRange($pRange)
             $pRange = self::DEFAULT_RANGE;
         }
 
-        $exploded = explode(',', $pRange);
+        if (strpos(trim($pRange), ' ') !== false) {
+            $delimiter = ' ';
+        } else {
+            $delimiter = ',';
+        }
+
+        $exploded = explode($delimiter, $pRange);
         $counter = count($exploded);
         for ($i = 0; $i < $counter; ++$i) {
             $exploded[$i] = explode(':', $exploded[$i]);

tests/data/CellSplitRange.php

@@ -29,4 +29,17 @@
         ],
         'B4:E9,H2:O11',
     ],
+    [
+        [
+            [
+                'B4',
+                'E9',
+            ],
+            [
+                'H2',
+                'O11',
+            ],
+        ],
+        'B4:E9 H2:O11',
+    ],
 ];