X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fscheme-listener-scheme.cc;h=7f1a15627d98382fee27f3fef7458da90edbc250;hb=9564d2844d109d0730cf850bbeb7768bb4d721d1;hp=b8946871c0061bb7c44a3f484fdca08477801541;hpb=2a8dcc4faa8a16229774d3414eedbf46feceac84;p=lilypond.git

diff --git a/lily/scheme-listener-scheme.cc b/lily/scheme-listener-scheme.cc
index b8946871c0..7f1a15627d 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--2012 Erik Sandberg  <mandolaerik@gmail.com>
 
-  (c) 2006 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"
-	   "\n"
-	   " @var{callback} should take exactly one argument." )
+           1, 0, 0, (SCM callback),
+           "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.")
 {
-  SCM_ASSERT_TYPE (scm_procedure_p (callback), callback, SCM_ARG1, __FUNCTION__, "procedure");
+  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 ();