X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=lily%2Fpaper-outputter.cc;h=6dff3242439bcc0c16ea0d5eabbe2fc532570f46;hb=0b544cfb7332615ef809b71b57ab656741311ae1;hp=d3b99055e9191d72a3e120d172697173d2acea6c;hpb=d664f5a7153ec2b1a1c4c9fba2d2174bf3140695;p=lilypond.git

diff --git a/lily/paper-outputter.cc b/lily/paper-outputter.cc
index d3b99055e9..6dff324243 100644
--- a/lily/paper-outputter.cc
+++ b/lily/paper-outputter.cc
@@ -1,10 +1,21 @@
 /*
-  paper-outputter.cc -- implement Paper_outputter
+  This file is part of LilyPond, the GNU music typesetter.
 
-  source file of the GNU LilyPond music typesetter
-
-  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  Copyright (C) 1997--2014 Han-Wen Nienhuys <hanwen@xs4all.nl>
   Jan Nieuwenhuizen <janneke@gnu.org>
+
+  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 "paper-outputter.hh"
@@ -29,7 +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;
@@ -37,6 +48,13 @@ Paper_outputter::Paper_outputter (SCM port, string format)
 
   string module_name = "scm output-" + format;
   output_module_ = scm_c_resolve_module (module_name.c_str ());
+
+  /*
+    Enable errors for undefined stencil routines if
+     -dwarning-as-error is specified; else enable warnings.
+  */
+  SCM proc = ly_lily_module_constant ("backend-testing");
+  scm_call_1 (proc, output_module_);
 }
 
 Paper_outputter::~Paper_outputter ()
@@ -56,8 +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;
@@ -81,29 +99,47 @@ Paper_outputter::scheme_to_string (SCM scm)
   return scm_eval (scm, output_module_);
 }
 
-void
+SCM
+Paper_outputter::module () const
+{
+  return output_module_;
+}
+
+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
 Paper_outputter::close ()
 {
   if (scm_port_p (file_) == SCM_BOOL_T)
-    scm_close_port (file_);
+    {
+      scm_close_port (file_);
+      /*
+        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_);
+    }
 }