@@ -142,10 +142,18 @@
  * \param str The string from which the data is written to the stream
  * \return The number of bytes written
  */
 - (size_t)writeLine: (OFString*)str;
 
+/**
+ * Writes a formatted string into the stream.
+ *
+ * \param fmt A string used as format
+ * \return The number of bytes written
+ */
+- (size_t)writeFormat: (OFString*)fmt, ...;
+
 /**
  * Closes the stream.
  */
 - close;
 @end