Two Problems with Sample19

19_NamedRange.php was not changed to use absolute addressing when that was introduced to Named Ranges. Consequently, the output from this sample has been wrong ever since, for both Xls and Xlsx.

There was an additional problem with Xls. It appears that the Xls Writer Parser does not parse multiple concatenations using the ampersand operator correctly. So, `=B1+" "+B2` was parsed as `=B1+" "`. I believe that this is due to ampersand being treated as a condition rather than an operator; `A1>A2>A3` isn't valid, but `A1&A2&A3` is. My original PR (PHPOffice#1992, which I will now close) only partially resolved this, but I think moving ampersand handling from `condition` to `expression` is fully successful.

There are already more than ample tests for Named Ranges, so I did not add a new one for that purpose. However, I did add a new test for the Xls parser problem.

samples/Basic/19_Namedrange.php

@@ -31,8 +31,8 @@
 
 // Define named ranges
 $helper->log('Define named ranges');
-$spreadsheet->addNamedRange(new NamedRange('PersonName', $spreadsheet->getActiveSheet(), 'B1'));
-$spreadsheet->addNamedRange(new NamedRange('PersonLN', $spreadsheet->getActiveSheet(), 'B2'));
+$spreadsheet->addNamedRange(new NamedRange('PersonName', $spreadsheet->getActiveSheet(), '$B$1'));
+$spreadsheet->addNamedRange(new NamedRange('PersonLN', $spreadsheet->getActiveSheet(), '$B$2'));
 
 // Rename named ranges
 $helper->log('Rename named ranges');

src/PhpSpreadsheet/Writer/Xls/Parser.php

@@ -1149,10 +1149,6 @@ private function condition()
             $this->advance();
             $result2 = $this->expression();
             $result = $this->createTree('ptgNE', $result, $result2);
-        } elseif ($this->currentToken == '&') {
-            $this->advance();
-            $result2 = $this->expression();
-            $result = $this->createTree('ptgConcat', $result, $result2);
         }
 
         return $result;
@@ -1203,6 +1199,11 @@ private function expression()
             return $this->createTree('ptgUplus', $result2, '');
         }
         $result = $this->term();
+        while ($this->currentToken === '&') {
+            $this->advance();
+            $result2 = $this->expression();
+            $result = $this->createTree('ptgConcat', $result, $result2);
+        }
         while (
             ($this->currentToken == '+') ||
             ($this->currentToken == '-') ||

tests/PhpSpreadsheetTests/Writer/Xls/Sample19Test.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace PhpOffice\PhpSpreadsheetTests\Writer\Xls;
+
+use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
+
+class Sample19Test extends AbstractFunctional
+{
+    public function testSample19Xls(): void
+    {
+        $spreadsheet = new \PhpOffice\PhpSpreadsheet\Spreadsheet();
+        $spreadsheet->setActiveSheetIndex(0);
+        $spreadsheet->getActiveSheet()->setCellValue('A1', 'Firstname:')
+            ->setCellValue('A2', 'Lastname:')
+            ->setCellValue('A3', 'Fullname:')
+            ->setCellValue('B1', 'Maarten')
+            ->setCellValue('B2', 'Balliauw')
+            ->setCellValue('B3', '=B1 & " " & B2')
+            ->setCellValue('C1', '=A2&A3&A3&A2&B1');
+
+        $robj = $this->writeAndReload($spreadsheet, 'Xls');
+        $sheet0 = $robj->setActiveSheetIndex(0);
+        // Xls parser eliminates unneeded whitespace
+        self::assertEquals('=B1&" "&B2', $sheet0->getCell('B3')->getValue());
+        self::assertEquals('Maarten Balliauw', $sheet0->getCell('B3')->getCalculatedValue());
+        self::assertEquals('Lastname:Fullname:Fullname:Lastname:Maarten', $sheet0->getCell('C1')->getCalculatedValue());
+    }
+}