Method validate_unicode_identifier

core/string/ustring.cpp:4575–4596

}

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();