Whitespace, minor formatting.

[lilypond.git] / lily / ligature-engraver.cc

diff --git a/lily/ligature-engraver.cc b/lily/ligature-engraver.cc
index 81523a0109d5056fc5050c3d7099c503c6736b3b..509ecd2df3755cc4d842450264eff6b81f1d7705 100644 (file)
--- a/lily/ligature-engraver.cc
+++ b/lily/ligature-engraver.cc
@@ -1,9 +1,20 @@
 /*
-  ligature-engraver.cc -- implement Ligature_engraver
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2002--2010 Juergen Reuter <reuter@ipd.uka.de>
 
-  (c) 2002--2006 Juergen Reuter <reuter@ipd.uka.de>
+  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 "ligature-engraver.hh"
@@ -14,8 +25,6 @@
 #include "rest.hh"
 #include "spanner.hh"
 #include "stream-event.hh"
-#include "warn.hh"
-
 #include "translator.icc"
 
 /*
@@ -82,7 +91,7 @@ void
 Ligature_engraver::listen_ligature (Stream_event *ev)
 {
   Direction d = to_dir (ev->get_property ("span-direction"));
-  events_drul_[d] = ev;
+  ASSIGN_EVENT_ONCE (events_drul_[d], ev);
 }
 
 void
@@ -92,7 +101,7 @@ Ligature_engraver::process_music ()
     {
       if (!ligature_)
        {
-         events_drul_[STOP]->origin ()->warning (_ ("can't find start of ligature"));
+         events_drul_[STOP]->origin ()->warning (_ ("cannot find start of ligature"));
          return;
        }
 
@@ -146,8 +155,9 @@ Ligature_engraver::stop_translation_timestep ()
     {
       if (!finished_primitives_.size ())
        {
-         finished_ligature_->programming_error ("Ligature_engraver::stop_translation_timestep (): "
-                                                "junking empty ligature");
+         finished_ligature_->programming_error (
+           "Ligature_engraver::stop_translation_timestep ():"
+           " junking empty ligature");
        }
       else
        {