Fix #629.

[lilypond.git] / lily / engraver.cc

diff --git a/lily/engraver.cc b/lily/engraver.cc
index 70a8bf512fb51ae71e1a3e05627c1b00e04027a7..e9195564d79849deee822a51933b932948a720af 100644 (file)
--- a/lily/engraver.cc
+++ b/lily/engraver.cc
@@ -70,7 +70,8 @@ Engraver::announce_end_grob (Grob *e, SCM cause)
     {
       cause = m->to_event ()->unprotect ();
     }
-  if (unsmob_stream_event (cause) || unsmob_grob (cause))
+  if (e->get_property ("cause") == SCM_EOL
+      && (unsmob_stream_event (cause) || unsmob_grob (cause)))
     e->set_property ("cause", cause);
 
   Grob_info i (this, e);
@@ -167,8 +168,16 @@ Engraver::internal_make_spanner (SCM x, SCM cause, char const *name, char const
 #include "translator.icc"
 
 ADD_TRANSLATOR (Engraver,
-               "Base class for engravers. Does nothing, so it is not used.",
+               /* doc */
+               "Base class for engravers.  Does nothing, so it is not used.",
+
+               /* create */
                "",
+
+               /* read */
                "",
-               "");
+
+               /* write */
+               ""
+               );