@@ -103,10 +103,19 @@
 /**
  * Lower the OFString.
  */
 - (void)lower;
 
+/**
+ * Inserts a string at the specified index.
+ *
+ * \param str The string to insert
+ * \param idx The index
+ */
+- (void)insertString: (OFString*)str
+	     atIndex: (size_t)idx;
+
 /**
  * Removes the characters at the specified range.
  *
  * \param start The index where the deletion should be started
  * \param end The index until which the characters should be deleted.