Imported Upstream version 2.14.2

[lilypond.git] / lily / translator-scheme.cc

diff --git a/lily/translator-scheme.cc b/lily/translator-scheme.cc
index 775e47da0df2275246b19170a4b462ac5a9bbf4c..7ede1b0eb412bc51adfd7e390d97842de61da4ea 100644 (file)
--- a/lily/translator-scheme.cc
+++ b/lily/translator-scheme.cc
@@ -1,11 +1,23 @@
 /*
-  translator-scheme.cc -- implement Scheme context functions
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
+  Copyright (C) 2002--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
 
-  (c) 2002--2009 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 "context.hh"
 #include "context-def.hh"
 #include "translator-group.hh"
 #include "moment.hh"
@@ -30,3 +42,14 @@ LY_DEFINE (ly_translator_description, "ly:translator-description",
   return tr->translator_description ();
 }
 
+
+LY_DEFINE (ly_translator_context, "ly:translator-context",
+          1, 0, 0, (SCM trans),
+          "Return the context of the translator object @var{trans}.")
+{
+  LY_ASSERT_SMOB (Translator, trans, 1);
+  Translator *tr = unsmob_translator (trans);
+
+  Context *c = tr->context ();
+  return c ? c->self_scm () : SCM_BOOL_F;
+}