From efec22b7bedfb1eae2df72b84cf5ad229e0bdc1e Mon Sep 17 00:00:00 2001
From: "Christoph M. Becker" <cmbecker69@gmx.de>
Date: Wed, 11 Mar 2020 13:02:09 +0100
Subject: Fix #78221: DOMNode::normalize() doesn't remove empty text nodes

If a text node is not followed by another text node, we remove it, if
its textContent is empty.
---
 ext/dom/php_dom.c | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'ext/dom/php_dom.c')

diff --git a/ext/dom/php_dom.c b/ext/dom/php_dom.c
index 72ae3c3ffe..ed67f047fa 100644
--- a/ext/dom/php_dom.c
+++ b/ext/dom/php_dom.c
@@ -1383,6 +1383,14 @@ void dom_normalize (xmlNodePtr nodep)
 						break;
 					}
 				}
+				strContent = xmlNodeGetContent(child);
+				if (*strContent == '\0') {
+					nextp = child->next;
+					xmlUnlinkNode(child);
+					php_libxml_node_free_resource(child);
+					child = nextp;
+					continue;
+				}
 				break;
 			case XML_ELEMENT_NODE:
 				dom_normalize (child);
-- 
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