2 files changed, 16 insertions, 0 deletions
diff --git a/core/string/ustring.cpp b/core/string/ustring.cpp
index a57c7b2504..9f931ef30b 100644
--- a/core/string/ustring.cpp
+++ b/core/string/ustring.cpp
@@ -4394,6 +4394,18 @@ String String::property_name_encode() const {
 	return *this;
 }
 
+// Changes made to the set of invalid characters must also be reflected in the String documentation.
+const String String::invalid_node_name_characters = ". : @ / \"";
+
+String String::validate_node_name() const {
+	Vector<String> chars = String::invalid_node_name_characters.split(" ");
+	String name = this->replace(chars[0], "");
+	for (int i = 1; i < chars.size(); i++) {
+		name = name.replace(chars[i], "");
+	}
+	return name;
+}
+
 String String::get_basename() const {
 	int pos = rfind(".");
 	if (pos < 0 || pos < MAX(rfind("/"), rfind("\\"))) {
diff --git a/core/string/ustring.h b/core/string/ustring.h
index 821941036f..1e362d7683 100644
--- a/core/string/ustring.h
+++ b/core/string/ustring.h
@@ -419,6 +419,10 @@ public:
 
 	String property_name_encode() const;
 
+	// node functions
+	static const String invalid_node_name_characters;
+	String validate_node_name() const;
+
 	bool is_valid_identifier() const;
 	bool is_valid_integer() const;
 	bool is_valid_float() const;