X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;ds=sidebyside;f=lily%2Fpaper-outputter.cc;h=34110554dc3b6b2514d5bbcb1ddaa195e07bab92;hb=a02cfaa060e2c5b0d21236016ee5328d21c2f8cb;hp=e08cbd6590ea870c2e357b16943490a45f5fa25f;hpb=55ac733b69643a6bc6a83b706c65cb56efd388ef;p=lilypond.git

diff --git a/lily/paper-outputter.cc b/lily/paper-outputter.cc
index e08cbd6590..34110554dc 100644
--- a/lily/paper-outputter.cc
+++ b/lily/paper-outputter.cc
@@ -1,7 +1,7 @@
 /*
   This file is part of LilyPond, the GNU music typesetter.
 
-  Copyright (C) 1997--2011 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2012 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
 
   LilyPond is free software: you can redistribute it and/or modify
@@ -40,7 +40,7 @@ using namespace std;
 
 #include "ly-smobs.icc"
 
-Paper_outputter::Paper_outputter (SCM port, string format)
+Paper_outputter::Paper_outputter (SCM port, const string &format)
 {
   file_ = port;
   output_module_ = SCM_EOL;
@@ -74,8 +74,8 @@ Paper_outputter::mark_smob (SCM x)
 
 int
 Paper_outputter::print_smob (SCM /* x */,
-			     SCM p,
-			     scm_print_state *)
+                             SCM p,
+                             scm_print_state *)
 {
   scm_puts ("#<Paper_outputter>", p);
   return 1;
@@ -105,24 +105,27 @@ Paper_outputter::module () const
   return output_module_;
 }
 
-void
+SCM
 Paper_outputter::output_scheme (SCM scm)
 {
-  dump_string (scheme_to_string (scm));
+  SCM str = scheme_to_string (scm);
+  if (scm_is_string (str))
+    dump_string (str);
+  return str;
 }
 
-void
+SCM
 paper_outputter_dump (void *po, SCM x)
 {
   Paper_outputter *me = (Paper_outputter *) po;
-  me->output_scheme (x);
+  return me->output_scheme (x);
 }
 
 void
 Paper_outputter::output_stencil (Stencil stil)
 {
   interpret_stencil_expression (stil.expr (), paper_outputter_dump,
-				(void *) this, Offset (0, 0));
+                                (void *) this, Offset (0, 0));
 }
 
 void
@@ -132,9 +135,9 @@ Paper_outputter::close ()
     {
       scm_close_port (file_);
       /*
-	Remove the "warning" definitions for missing stencil
-	expressions so that we start fresh with the next \book
-	block.  --pmccarty
+        Remove the "warning" definitions for missing stencil
+        expressions so that we start fresh with the next \book
+        block.  --pmccarty
       */
       SCM proc = ly_lily_module_constant ("remove-stencil-warnings");
       scm_call_1 (proc, output_module_);