Merge pull request #4106 from oleibman/issue1284

Html Reader Preserve Unicode Whitespace Characters

Author: oleibman

src/PhpSpreadsheet/Reader/Html.php

@@ -627,7 +627,10 @@ protected function processDomElement(DOMNode $element, Worksheet $sheet, int &$r
     {
         foreach ($element->childNodes as $child) {
             if ($child instanceof DOMText) {
-                $domText = (string) preg_replace('/\s+/u', ' ', trim($child->nodeValue ?? ''));
+                $domText = (string) preg_replace('/\s+/', ' ', trim($child->nodeValue ?? ''));
+                if ($domText === "\u{a0}") {
+                    $domText = '';
+                }
                 if (is_string($cellContent)) {
                     //    simply append the text if the cell content is a plain text string
                     $cellContent .= $domText;

tests/PhpSpreadsheetTests/Reader/Html/Issue1284Test.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests\Reader\Html;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheetTests\Functional\AbstractFunctional;
+
+class Issue1284Test extends AbstractFunctional
+{
+    public function testIssue1284(): void
+    {
+        $ideographicSpace = "\u{3000}";
+        $nbsp = "\u{a0}";
+        $spreadsheetOld = new Spreadsheet();
+        $osheet = $spreadsheetOld->getActiveSheet();
+        $osheet->getCell('A1')->setValue('# item 1');
+        $osheet->getCell('A2')->setValue("$ideographicSpace# item 2");
+        $osheet->getCell('A3')->setValue("$ideographicSpace$ideographicSpace# item 3");
+        $osheet->getCell('A4')->setValue("$nbsp#  item\t4");
+        $osheet->getCell('A5')->setValue("$nbsp$nbsp# item    5");
+
+        $spreadsheet = $this->writeAndReload($spreadsheetOld, 'Html');
+        $spreadsheetOld->disconnectWorksheets();
+
+        $sheet = $spreadsheet->getActiveSheet();
+        self::assertSame('# item 1', $sheet->getCell('A1')->getValue(), 'nothing changed');
+        self::assertSame("$ideographicSpace# item 2", $sheet->getCell('A2')->getValue(), 'nothing changed including 1 ideographic space');
+        self::assertSame("$ideographicSpace$ideographicSpace# item 3", $sheet->getCell('A3')->getValue(), 'nothing changed including 2 ideographic spaces');
+        self::assertSame("$nbsp# item 4", $sheet->getCell('A4')->getValue(), 'nbsp unchanged, 2 spaces reduced to 1, tab changed to space');
+        self::assertSame("$nbsp$nbsp# item 5", $sheet->getCell('A5')->getValue(), 'many spaces reduced to 1');
+
+        $spreadsheet->disconnectWorksheets();
+    }
+}