@@ -1982,10 +1982,20 @@
 
 	objc_autoreleasePoolPop(pool);
 
 	return false;
 }
+
+- (OFString *)substringFromIndex: (size_t)idx
+{
+	return [self substringWithRange: of_range(idx, self.length - idx)];
+}
+
+- (OFString *)substringToIndex: (size_t)idx
+{
+	return [self substringWithRange: of_range(0, idx)];
+}
 
 - (OFString *)substringWithRange: (of_range_t)range
 {
 	void *pool;
 	OFString *ret;