catch GUILE errors

[lilypond.git] / lily / translator.cc

diff --git a/lily/translator.cc b/lily/translator.cc
index 6183057b85cbab2bc649302246d68fb8e9e8f549..2c1100d4e8fcdd073517bd277f7b707f41562fcd 100644 (file)
--- a/lily/translator.cc
+++ b/lily/translator.cc
@@ -3,23 +3,18 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
 */
 
 
 #include "translator.hh"
-#include "debug.hh"
+#include "warn.hh"
 #include "translator-group.hh"
 #include "translator-def.hh"
 
 #include "moment.hh"
 #include "ly-smobs.icc"
 
-char const*
-Translator::name () const
-{
-  return classname (this);
-}
 
 Translator::~Translator ()
 {
@@ -32,23 +27,21 @@ Translator::init ()
   trans_group_list_ = SCM_EOL;
   properties_scm_ = SCM_EOL;
   definition_ = SCM_EOL;
-  daddy_trans_l_ =0;
+  daddy_trans_ =0;
 }
 
 Translator::Translator ()
 {
   init ();
-  output_def_l_ = 0;
+  output_def_ = 0;
   smobify_self ();
-
 }
 
 Translator::Translator (Translator const &s)
-  : Input (s)
 {
   init ();
-  output_def_l_ = s.output_def_l_;
-  type_str_ = s.type_str_;
+  output_def_ = s.output_def_;
+  type_string_ = s.type_string_;
 
   smobify_self ();
 }
@@ -56,11 +49,11 @@ Translator::Translator (Translator const &s)
 bool
 Translator::is_alias_b (String s) const
 {
-  bool b  = s == type_str_;
+  bool b  = s == type_string_;
 
   for (SCM a = unsmob_translator_def (definition_)->type_aliases_;
-       !b && gh_pair_p (a); a = gh_cdr (a))
-    b = b || s == ly_scm2string (gh_car (a));
+       !b && gh_pair_p (a); a = ly_cdr (a))
+    b = b || s == ly_scm2string (ly_car (a));
 
   return b;
 }
@@ -75,17 +68,7 @@ Translator::try_music (Music *)
 Moment
 Translator::now_mom () const
 {
-  return daddy_trans_l_->now_mom ();
-}
-
-
-
-
-
-void
-Translator::post_move_processing ()
-{
-  start_translation_timestep ();
+  return daddy_trans_->now_mom ();
 }
 
 void
@@ -94,38 +77,21 @@ Translator::removal_processing ()
   finalize ();
 }
 
-
 void
-Translator::announces ()
-{
-  do_announces ();
-}
-
-
-void
-Translator::pre_move_processing ()
+Translator::do_announces ()
 {
-  stop_translation_timestep ();
 }
 
-
-
 Music_output_def *
-Translator::output_def_l () const
+Translator::get_output_def () const
 {
-  return output_def_l_;
+  return output_def_;
 }
 
 SCM
-Translator::get_property (char const * id) const
+Translator::internal_get_property (SCM sym) const
 {
-  return daddy_trans_l_->get_property (ly_symbol2scm (id));
-}
-
-SCM
-Translator::get_property (SCM sym) const
-{
-  return daddy_trans_l_->get_property (sym);
+  return daddy_trans_->internal_get_property (sym);
 }
 
 void
@@ -138,11 +104,6 @@ Translator::start_translation_timestep ()
 {
 }
 
-void
-Translator::do_announces ()
-{
-}
-
 void
 Translator::initialize ()
 {
@@ -171,14 +132,42 @@ Translator::mark_smob (SCM sm)
   return me->properties_scm_;
 }
 
+LY_DEFINE(ly_translator_name,
+         "ly-translator-name", 1,0,0,  (SCM trans),
+         "Return the type name of the translator @var{trans}.
+")
+{
+  Translator* tr =  unsmob_translator (trans);
+  SCM_ASSERT_TYPE(tr, trans, SCM_ARG1, __FUNCTION__, "Context");
+
+  char const* nm = classname (tr);
+  return ly_str02scm (nm);
+}
+
+LY_DEFINE(ly_translator_description,
+         "ly-translator-description",
+         1,0,0, (SCM me),
+         "Return an alist of properties of  translator @var{me}.")
+{
+  Translator *tr =unsmob_translator (me);
+  SCM_ASSERT_TYPE (tr, me, SCM_ARG1, __FUNCTION__, "Context");
+
+  return tr->translator_description ();
+}
+
+SCM
+Translator::translator_description () const
+{
+  return SCM_EOL;
+}
 
 int
 Translator::print_smob (SCM s, SCM port, scm_print_state *)
 {
-  Translator *sc = (Translator *) gh_cdr (s);
+  Translator *sc = (Translator *) ly_cdr (s);
      
   scm_puts ("#<Translator ", port);
-  scm_puts ((char *)sc->name (), port);
+  scm_display (ly_translator_name (s), port);
   scm_display (sc->simple_trans_list_, port);
   /*
     don't try to print properties, that is too much hassle.
@@ -188,6 +177,12 @@ Translator::print_smob (SCM s, SCM port, scm_print_state *)
   return 1;
 }
 
-IMPLEMENT_UNSMOB (Translator, translator);
+SCM
+Translator::static_translator_description ()const
+{
+  return SCM_EOL;
+}
+
+
 IMPLEMENT_SMOBS (Translator);
 IMPLEMENT_DEFAULT_EQUAL_P (Translator);