X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fscheme-listener-scheme.cc;h=a1b1fe593a9b260b0300b769d15327a3c4e4f54d;hb=774f7b99cadfebdfc5f85c7af37ee4dd97e09613;hp=326ba2ecdce755d020778036c667927693befac9;hpb=92918346012f79ef9109ef0c391947af2d3165ca;p=lilypond.git

diff --git a/lily/scheme-listener-scheme.cc b/lily/scheme-listener-scheme.cc
index 326ba2ecdc..a1b1fe593a 100644
--- a/lily/scheme-listener-scheme.cc
+++ b/lily/scheme-listener-scheme.cc
@@ -1,22 +1,32 @@
 /*
-  scheme-listener-scheme.cc -- Connect listeners to Scheme through Scheme_listener
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2006--2010 Erik Sandberg  <mandolaerik@gmail.com>
 
-  (c) 2006--2007 Erik Sandberg  <mandolaerik@gmail.com>
+  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 "scheme-listener.hh"
 
 LY_DEFINE (ly_make_listener, "ly:make-listener",
 	   1, 0, 0, (SCM callback),
-	   "Creates a listener. Any time the listener hears\n"
-	   " an object, it will call @var{callback}\n"
-	   " with that object.\n"
+	   "Create a listener.  Any time the listener hears an object,"
+	   " it will call @var{callback} with that object.\n"
 	   "\n"
-	   " @var{callback} should take exactly one argument." )
+	   "@var{callback} should take exactly one argument.")
 {
-  LY_ASSERT_FIRST_TYPE(ly_is_procedure, callback);
+  LY_ASSERT_TYPE (ly_is_procedure, callback, 1);
   Scheme_listener *l = new Scheme_listener (callback);
   SCM listener = GET_LISTENER (l->call).smobbed_copy ();
   l->unprotect ();