1 files changed, 45 insertions, 5 deletions

diff --git a/core/string/ustring.cpp b/core/string/ustring.cpp
index 2683addd4b..e6f7492a18 100644
--- a/core/string/ustring.cpp
+++ b/core/string/ustring.cpp
@@ -221,18 +221,35 @@ void CharString::copy_from(const char *p_cstr) {
 /*  String                                                               */
 /*************************************************************************/
 
-Error String::parse_url(String &r_scheme, String &r_host, int &r_port, String &r_path) const {
-	// Splits the URL into scheme, host, port, path. Strip credentials when present.
+Error String::parse_url(String &r_scheme, String &r_host, int &r_port, String &r_path, String &r_fragment) const {
+	// Splits the URL into scheme, host, port, path, fragment. Strip credentials when present.
 	String base = *this;
 	r_scheme = "";
 	r_host = "";
 	r_port = 0;
 	r_path = "";
+	r_fragment = "";
+
 	int pos = base.find("://");
 	// Scheme
 	if (pos != -1) {
-		r_scheme = base.substr(0, pos + 3).to_lower();
-		base = base.substr(pos + 3, base.length() - pos - 3);
+		bool is_scheme_valid = true;
+		for (int i = 0; i < pos; i++) {
+			if (!is_ascii_alphanumeric_char(base[i]) && base[i] != '+' && base[i] != '-' && base[i] != '.') {
+				is_scheme_valid = false;
+				break;
+			}
+		}
+		if (is_scheme_valid) {
+			r_scheme = base.substr(0, pos + 3).to_lower();
+			base = base.substr(pos + 3, base.length() - pos - 3);
+		}
+	}
+	pos = base.find("#");
+	// Fragment
+	if (pos != -1) {
+		r_fragment = base.substr(pos + 1);
+		base = base.substr(0, pos);
 	}
 	pos = base.find("/");
 	// Path
@@ -4626,7 +4643,7 @@ bool String::is_absolute_path() const {
 
 String String::validate_ascii_identifier() const {
 	if (is_empty()) {
-		return "_"; // Empty string is not a valid identifier;
+		return "_"; // Empty string is not a valid identifier.
 	}
 
 	String result;
@@ -4647,6 +4664,29 @@ String String::validate_ascii_identifier() const {
 	return result;
 }
 
+String String::validate_unicode_identifier() const {
+	if (is_empty()) {
+		return "_"; // Empty string is not a valid identifier.
+	}
+
+	String result;
+	if (is_unicode_identifier_start(operator[](0))) {
+		result = *this;
+	} else {
+		result = "_" + *this;
+	}
+
+	int len = result.length();
+	char32_t *buffer = result.ptrw();
+	for (int i = 0; i < len; i++) {
+		if (!is_unicode_identifier_continue(buffer[i])) {
+			buffer[i] = '_';
+		}
+	}
+
+	return result;
+}
+
 bool String::is_valid_ascii_identifier() const {
 	int len = length();