source file of the GNU LilyPond music typesetter
- (c) 1997 Han-Wen Nienhuys <hanwen@stack.nl>
+ (c) 1997--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
#include "music-output-def.hh"
#include "translator-group.hh"
#include "translator.hh"
-#include "debug.hh"
-#include "pcursor.hh"
+#include "warn.hh"
+#include "moment.hh"
+#include "scm-hash.hh"
+#include "translator-def.hh"
+#include "main.hh"
Translator_group::Translator_group (Translator_group const&s)
- : Translator(s)
+ : Translator (s)
{
- consists_str_arr_ = s.consists_str_arr_;
- accepts_str_arr_ = s.accepts_str_arr_;
iterator_count_ =0;
+
+ Scheme_hash_table * tab = new Scheme_hash_table (*s.properties_dict ());
+ properties_scm_ = tab->self_scm ();
+ scm_gc_unprotect_object (tab->self_scm ());
+}
+
+Scheme_hash_table*
+Translator_group::properties_dict () const
+{
+ return Scheme_hash_table::unsmob (properties_scm_);
}
Translator_group::~Translator_group ()
{
- assert (removable_b());
+
+ //assert (removable_b ());
}
-Translator_group::Translator_group()
+Translator_group::Translator_group ()
{
iterator_count_ = 0;
+ Scheme_hash_table *tab = new Scheme_hash_table ;
+ properties_scm_ = tab->self_scm ();
+
+ scm_gc_unprotect_object (tab->self_scm ());
}
void
-Translator_group::check_removal()
+Translator_group::check_removal ()
{
- for (int i =0; i < group_l_arr ().size();)
+ SCM next = SCM_EOL;
+ for (SCM p = trans_group_list_; gh_pair_p (p); p = next)
{
- group_l_arr ()[i]->check_removal();
- if (group_l_arr ()[i]->removable_b())
- terminate_translator (group_l_arr ()[i]);
- else
- i++;
+ next = ly_cdr (p);
+
+ Translator_group *trg = dynamic_cast<Translator_group*> (unsmob_translator (ly_car (p)));
+
+ trg->check_removal ();
+ if (trg->removable_b ())
+ terminate_translator (trg);
}
}
+SCM
+Translator_group::add_translator (SCM list, Translator *t)
+{
+ /*
+ Must append, since list ordering must be preserved.
+ */
+ list = gh_append2 (list, gh_cons (t->self_scm (), SCM_EOL));
+ t->daddy_trans_ = this;
+ t->output_def_ = output_def_;
+ return list;
+}
-IMPLEMENT_IS_TYPE_B1(Translator_group, Translator);
void
-Translator_group::add (Translator *trans_p)
+Translator_group::add_used_group_translator (Translator *t)
{
- trans_p_list_.bottom().add (trans_p);
- trans_p->daddy_trans_l_ = this;
- trans_p->output_def_l_ = output_def_l_;
- trans_p->add_processing ();
+ trans_group_list_ = add_translator (trans_group_list_,t);
}
+
+void
+Translator_group::add_fresh_group_translator (Translator*t)
+{
+ Translator_group*tg = dynamic_cast<Translator_group*> (t);
+ assert (tg);
+
+ trans_group_list_ = add_translator (trans_group_list_,t);
+ unsmob_translator_def (tg->definition_)->apply_property_operations (tg);
+ t->initialize ();
+
+}
+
+
bool
-Translator_group::removable_b() const
+Translator_group::removable_b () const
{
- return !(iterator_count_ || group_l_arr ().size());
+ return trans_group_list_ == SCM_EOL && ! iterator_count_;
}
-Translator_group *
-Translator_group::find_existing_translator_l (String n, String id)
+Translator_group *
+Translator_group::find_existing_translator (String n, String id)
{
- if (is_alias_b (n) && (id_str_ == id || id.empty_b ()))
+ if (is_alias_b (n) && (id_string_ == id || id.empty_b ()))
return this;
+
Translator_group* r = 0;
- for (int i =0; !r && i < group_l_arr ().size(); i++)
+ for (SCM p = trans_group_list_; !r && gh_pair_p (p); p = ly_cdr (p))
{
- r = group_l_arr ()[i]->find_existing_translator_l (n,id);
+ Translator * t = unsmob_translator (ly_car (p));
+
+ r = dynamic_cast<Translator_group*> (t)->find_existing_translator (n, id);
}
-
+
return r;
}
-Link_array<Translator_group>
-Translator_group::path_to_acceptable_translator (String type) const
-{
- Link_array<Translator_group> accepted_arr;
- for (int i=0; i < accepts_str_arr_.size (); i++)
- {
- Translator *t = output_def_l ()->find_translator_l (accepts_str_arr_[i]);
- if (!t || !t->group_l ())
- continue;
- accepted_arr.push (t->group_l());
- }
-
- for (int i=0; i < accepted_arr.size (); i++)
- if (accepted_arr[i]->type_str_ == type)
- {
- Link_array<Translator_group> retval;
- retval.push (accepted_arr[i]);
- return retval;
- }
-
- Link_array<Translator_group> best_result;
- int best_depth= INT_MAX;
- for (int i=0; i < accepted_arr.size (); i++)
- {
- Translator_group * g = accepted_arr[i];
-
- Link_array<Translator_group> result
- = g->path_to_acceptable_translator (type);
- if (result.size () && result.size () < best_depth)
- {
- result.insert (g,0);
- best_result = result;
- }
- }
- return best_result;
-}
Translator_group*
-Translator_group::find_create_translator_l (String n, String id)
+Translator_group::find_create_translator (String n, String id)
{
- Translator_group * existing = find_existing_translator_l (n,id);
+ Translator_group * existing = find_existing_translator (n,id);
if (existing)
return existing;
-
- Link_array<Translator_group> path = path_to_acceptable_translator (n);
-
+
+ Link_array<Translator_def> path
+ = unsmob_translator_def (definition_)->path_to_acceptable_translator (ly_str02scm ((char*)n.to_str0 ()), get_output_def ());
+
if (path.size ())
{
Translator_group * current = this;
// start at 1. The first one (index 0) will be us.
- for (int i=0; i < path.size (); i++)
+ for (int i=0; i < path.size (); i++)
{
- Translator_group * new_group = path[i]->clone ()->group_l ();
- current->add (new_group);
+ Translator_group * new_group = path[i]->instantiate (output_def_);
+
+ if (i == path.size () -1)
+ new_group->id_string_ = id;
+ current->add_fresh_group_translator (new_group);
current = new_group;
}
- current->id_str_ = id;
+
return current;
}
-
+
Translator_group *ret = 0;
- if (daddy_trans_l_)
- ret = daddy_trans_l_->find_create_translator_l (n,id);
- else
+ if (daddy_trans_)
+ ret = daddy_trans_->find_create_translator (n,id);
+ else
{
- warning ("Can't find or create `" + n + "' called `" + id + "'\n");
+ warning (_f ("can't find or create `%s' called `%s'", n, id));
ret =0;
}
return ret;
}
-
bool
-Translator_group::do_try_request (Request* req_l)
+Translator_group::try_music_on_nongroup_children (Music *m)
{
bool hebbes_b =false;
- for (int i =0; !hebbes_b && i < nongroup_l_arr ().size() ; i++)
- hebbes_b =nongroup_l_arr ()[i]->try_request (req_l);
- if (!hebbes_b && daddy_trans_l_)
- hebbes_b = daddy_trans_l_->try_request (req_l);
+
+ for (SCM p = simple_trans_list_; !hebbes_b && gh_pair_p (p); p = ly_cdr (p))
+ {
+ hebbes_b = unsmob_translator (ly_car (p))->try_music (m);
+ }
+ return hebbes_b;
+}
+
+bool
+Translator_group::try_music (Music* m)
+{
+ bool hebbes_b = try_music_on_nongroup_children (m);
+
+ if (!hebbes_b && daddy_trans_)
+ hebbes_b = daddy_trans_->try_music (m);
return hebbes_b ;
}
int
-Translator_group::depth_i() const
+Translator_group::get_depth () const
{
- return (daddy_trans_l_) ? daddy_trans_l_->depth_i() + 1 : 0;
+ return (daddy_trans_) ? daddy_trans_->get_depth () + 1 : 0;
}
Translator_group*
-Translator_group::ancestor_l (int level)
+Translator_group::get_ancestor (int level)
{
- if (!level || !daddy_trans_l_)
+ if (!level || !daddy_trans_)
return this;
-
- return daddy_trans_l_->ancestor_l (level-1);
-}
-
-Link_array<Translator_group>
-Translator_group::group_l_arr () const
-{
- Link_array<Translator_group> groups;
- for (PCursor<Translator*> i (trans_p_list_.top ()); i.ok (); i++)
- {
- if (i->group_l ())
- groups.push (i->group_l ());
- }
- return groups;
-}
-Link_array<Translator>
-Translator_group::nongroup_l_arr () const
-{
- Link_array<Translator> groups;
- for (PCursor<Translator*> i (trans_p_list_.top ()); i.ok (); i++)
- {
- if (!i->group_l ())
- groups.push (i.ptr ());
- }
- return groups;
+ return daddy_trans_->get_ancestor (level-1);
}
void
-Translator_group::terminate_translator (Translator*r_l)
+Translator_group::terminate_translator (Translator*r)
{
- DOUT << "Removing " << r_l->name() << " at " << now_moment () << "\n";
- r_l->removal_processing();
- Translator * trans_p =remove_translator_p (r_l);
-
- delete trans_p;
+ r->removal_processing ();
+ /*
+ Return value ignored. GC does the rest.
+ */
+ remove_translator (r);
}
+
+/**
+ Remove a translator from the hierarchy.
+ */
Translator *
-Translator_group::remove_translator_p (Translator*trans_l)
+Translator_group::remove_translator (Translator*trans)
{
- PCursor<Translator*> trans_cur (trans_p_list_.find (trans_l));
- Translator * t = trans_cur.remove_p();
- /*
- For elegant design, we would do this too. Alas, it does not work yet..
-
- t-> removal_processing ();
- */
- t-> daddy_trans_l_ = 0;
- return t;
+ assert (trans);
+
+ trans_group_list_ = scm_delq_x (trans->self_scm (), trans_group_list_);
+ trans->daddy_trans_ = 0;
+ return trans;
}
+bool
+Translator_group::is_bottom_translator_b () const
+{
+ return !gh_string_p (unsmob_translator_def (definition_)->default_child_context_name ());
+
+}
-Translator*
-Translator_group::get_simple_translator (char const *type) const
+Translator_group*
+Translator_group::get_default_interpreter ()
{
- for (int i=0; i < nongroup_l_arr ().size(); i++)
+ if (!is_bottom_translator_b ())
{
- if (nongroup_l_arr ()[i]->name() == type)
- return nongroup_l_arr ()[i];
+ SCM nm = unsmob_translator_def (definition_)->default_child_context_name ();
+ SCM st = get_output_def ()->find_translator (nm);
+
+ Translator_def *t = unsmob_translator_def (st);
+ if (!t)
+ {
+ warning (_f ("can't find or create: `%s'", ly_scm2string (nm).to_str0 ()));
+ t = unsmob_translator_def (this->definition_);
+ }
+ Translator_group *tg = t->instantiate (output_def_);
+ add_fresh_group_translator (tg);
+
+ if (!tg->is_bottom_translator_b ())
+ return tg->get_default_interpreter ();
+ else
+ return tg;
}
- if (daddy_trans_l_)
- return daddy_trans_l_->get_simple_translator (type);
- return 0;
+ return this;
}
-
-bool
-Translator_group::is_bottom_translator_b () const
+static void
+static_each (SCM list, Method_pointer method)
{
- return !accepts_str_arr_.size ();
+ for (SCM p = list; gh_pair_p (p); p = ly_cdr (p))
+ (unsmob_translator (ly_car (p))->*method) ();
+
}
+void
+Translator_group::each (Method_pointer method)
+{
+ static_each (simple_trans_list_, method);
+ static_each (trans_group_list_, method);
+}
+/*
+ PROPERTIES
+ */
Translator_group*
-Translator_group::get_default_interpreter()
+Translator_group::where_defined (SCM sym) const
{
- if (accepts_str_arr_.size())
+ if (properties_dict ()->elem_b (sym))
{
- Translator*t = output_def_l ()->find_translator_l (accepts_str_arr_[0]);
- Translator_group * g= t->clone ()->group_l ();
- add (g);
-
- if (!g->is_bottom_translator_b ())
- return g->get_default_interpreter ();
- else
- return g;
+ return (Translator_group*)this;
}
- return this;
+
+ return (daddy_trans_) ? daddy_trans_->where_defined (sym) : 0;
+}
+
+/*
+ return SCM_EOL when not found.
+*/
+SCM
+Translator_group::internal_get_property (SCM sym) const
+{
+ SCM val =SCM_EOL;
+ if (properties_dict ()->try_retrieve (sym, &val))
+ return val;
+
+ if (daddy_trans_)
+ return daddy_trans_->internal_get_property (sym);
+
+ return val;
}
void
-Translator_group::each (Method_pointer method)
+Translator_group::internal_set_property (SCM sym, SCM val)
{
- for (PCursor<Translator*> i (trans_p_list_.top ()); i.ok (); i++)
- (i.ptr()->*method) ();
+#ifndef NDEBUG
+ if (internal_type_checking_global_b)
+ assert (type_check_assignment (sym, val, ly_symbol2scm ("translation-type?")));
+#endif
+
+ properties_dict ()->set (sym, val);
}
+/*
+ TODO: look up to check whether we have inherited var?
+ */
void
-Translator_group::each (Const_method_pointer method) const
+Translator_group::unset_property (SCM sym)
{
- for (PCursor<Translator*> i (trans_p_list_.top ()); i.ok (); i++)
- (i.ptr()->*method) ();
+ properties_dict ()->remove (sym);
}
+
+/*
+ Push or pop (depending on value of VAL) a single entry (ELTPROP . VAL)
+ entry from a translator property list by name of PROP
+*/
void
-Translator_group::do_print() const
+Translator_group::execute_single_pushpop_property (SCM prop, SCM eltprop, SCM val)
{
-#ifndef NPRINT
- if (!check_debug)
- return ;
- if (status == ORPHAN)
- {
- DOUT << "consists of: ";
- for (int i=0; i < consists_str_arr_.size (); i++)
- DOUT << consists_str_arr_[i] << ", ";
- DOUT << "\naccepts: ";
- for (int i=0; i < accepts_str_arr_.size (); i++)
- DOUT << accepts_str_arr_[i] << ", ";
- }
- else
+ if (gh_symbol_p (prop))
{
- if (id_str_.length_i ())
- DOUT << "ID: " << id_str_ ;
- DOUT << " iterators: " << iterator_count_<< "\n";
+ if (val != SCM_UNDEFINED)
+ {
+ SCM prev = internal_get_property (prop);
+
+ if (gh_pair_p (prev) || prev == SCM_EOL)
+ {
+ bool ok = type_check_assignment (eltprop, val, ly_symbol2scm ("backend-type?"));
+
+ if (ok)
+ {
+ prev = gh_cons (gh_cons (eltprop, val), prev);
+ internal_set_property (prop, prev);
+ }
+ }
+ else
+ {
+ // warning here.
+ }
+
+ }
+ else
+ {
+ SCM prev = internal_get_property (prop);
+
+ SCM newprops= SCM_EOL ;
+ while (gh_pair_p (prev) && ly_caar (prev) != eltprop)
+ {
+ newprops = gh_cons (ly_car (prev), newprops);
+ prev = ly_cdr (prev);
+ }
+
+ if (gh_pair_p (prev))
+ {
+ newprops = scm_reverse_x (newprops, ly_cdr (prev));
+ internal_set_property (prop, newprops);
+ }
+ }
}
- each (&Translator::print);
-#endif
}
+
+
+
+
+/*
+ STUBS
+*/
void
-Translator_group::do_pre_move_processing ()
+Translator_group::stop_translation_timestep ()
{
- each (&Translator::pre_move_processing);
+ each (&Translator::stop_translation_timestep);
}
void
-Translator_group::do_post_move_processing ()
+Translator_group::start_translation_timestep ()
{
- each (&Translator::post_move_processing);
+ each (&Translator::start_translation_timestep);
}
void
-Translator_group::do_process_requests ()
+Translator_group::do_announces ()
{
- each (&Translator::process_requests);
+ each (&Translator::do_announces);
}
void
-Translator_group::do_creation_processing ()
+Translator_group::initialize ()
{
- each (&Translator::creation_processing);
+ each (&Translator::initialize);
}
void
-Translator_group::do_removal_processing ()
+Translator_group::finalize ()
{
each (&Translator::removal_processing);
}
-void
-Translator_group::do_add_processing ()
+LY_DEFINE(ly_get_context_property,
+ "ly-get-context-property", 2, 0, 0,
+ (SCM context, SCM name),
+ "retrieve the value of @var{sym} from context @var{tr}")
{
- for (int i=0; i < consists_str_arr_.size(); i++)
- {
- Translator * t = output_def_l ()->find_translator_l (consists_str_arr_[i]);
- if (!t)
- warning ("Could not find `" +consists_str_arr_[i]+ "'");
- else
- add (t->clone ());
- }
+ Translator *t = unsmob_translator (context);
+ Translator_group* tr= dynamic_cast<Translator_group*> (t);
+ SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Translator group");
+ SCM_ASSERT_TYPE(gh_symbol_p (name), name, SCM_ARG2, __FUNCTION__, "symbol");
+
+ return tr->internal_get_property (name);
+
+}
+
+LY_DEFINE(ly_set_context_property,
+ "ly-set-context-property", 3, 0, 0,
+ (SCM context, SCM name, SCM val),
+ "set value of property @var{sym} in context @var{tr} to @var{val}.
+")
+{
+ Translator *t = unsmob_translator (context);
+ Translator_group* tr= dynamic_cast<Translator_group*> (t);
+
+ SCM_ASSERT_TYPE(tr, context, SCM_ARG1, __FUNCTION__, "Context");
+ tr->internal_set_property (name, val);
+
+ return SCM_UNSPECIFIED;
}