-ENTER_DESCRIPTION(Bar_number_engraver,
-/* descr */ "A bar number is created whenever measurePosition is zero. It is\n"
-"put on top of all staves, and appears only at left side of the staff.",
-/* creats*/ "BarNumber",
-/* accepts */ "",
-/* acks */ "break-aligned-interface",
-/* reads */ "currentBarNumber stavesFound barNumberVisibility" ,
-/* write */ "");
+
+ADD_ACKNOWLEDGER (Bar_number_engraver, break_alignment);
+
+ADD_TRANSLATOR (Bar_number_engraver,
+ /* doc */
+ "A bar number is created whenever @code{measurePosition} is"
+ " zero and when there is a bar line (i.e., when"
+ " @code{whichBar} is set). It is put on top of all staves,"
+ " and appears only at the left side of the staff. The staves"
+ " are taken from @code{stavesFound}, which is maintained by"
+ " @ref{Staff_collecting_engraver}.",
+
+ /* create */
+ "BarNumber ",
+
+ /* read */
+ "currentBarNumber "
+ "whichBar "
+ "stavesFound "
+ "barNumberVisibility ",
+
+ /* write */
+ ""
+ );