--- /dev/null
+/*
+ This file is part of LilyPond, the GNU music typesetter.
+
+ Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+
+ LilyPond is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ LilyPond is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "engraver.hh"
+#include "grob.hh"
+
+LY_DEFINE (ly_engraver_make_grob, "ly:engraver-make-grob",
+ 3, 0, 0, (SCM engraver, SCM grob_name, SCM cause),
+ "Create a grob originating from given @var{engraver} instance,"
+ " with given @var{grob-name}, a symbol."
+ " @var{cause} should either be another grob"
+ " or a music event.")
+{
+ LY_ASSERT_TYPE (unsmob_engraver, engraver, 1);
+ LY_ASSERT_TYPE (ly_is_symbol, grob_name, 2);
+ LY_ASSERT_TYPE (ly_is_grob_cause, cause, 3);
+
+ Grob *g = unsmob_engraver (engraver)->
+ internal_make_grob(grob_name, cause,
+ ly_symbol2string (grob_name).c_str (),
+ "scheme", 0, "scheme");
+ return g->self_scm ();
+}
+
+LY_DEFINE (ly_engraver_announce_end_grob, "ly:engraver-announce-end-grob",
+ 3, 0, 0, (SCM engraver, SCM grob, SCM cause),
+ "Announce the end of a grob (i.e., the end of a spanner)"
+ " originating from given @var{engraver} instance, with"
+ " @var{grob} being a grob. @var{cause} should either"
+ " be another grob or a music event.")
+{
+ LY_ASSERT_TYPE (unsmob_engraver, engraver, 1);
+ LY_ASSERT_SMOB (Grob, grob, 2);
+ LY_ASSERT_TYPE (ly_is_grob_cause, cause, 3);
+
+ unsmob_engraver (engraver)->
+ announce_end_grob (unsmob_grob (grob), cause);
+
+ return SCM_UNSPECIFIED;
+}