added comment with spec link, as requested

guss77 · adrilo · commit 73347517f064 · 2021-02-09T11:21:25.000+01:00
diff --git a/src/Spout/Writer/ODS/Manager/WorksheetManager.php b/src/Spout/Writer/ODS/Manager/WorksheetManager.php
@@ -197,7 +197,7 @@ private function getCellXML(Cell $cell, $styleIndex, $numTimesValueRepeated)
 
             $data .= '</table:table-cell>';
         } elseif ($cell->isBoolean()) {
-            $value = $cell->getValue() ? 'true' : 'false';
+            $value = $cell->getValue() ? 'true' : 'false'; // boolean-value spec: http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part1.html#datatype-boolean
             $data .= ' office:value-type="boolean" calcext:value-type="boolean" office:boolean-value="' . $value . '">';
             $data .= '<text:p>' . $cell->getValue() . '</text:p>';
             $data .= '</table:table-cell>';
